JP2002035673A - Supply chain system - Google Patents

Abstract

(57) [Summary] [Problem] To provide a supply chain system that improves the efficiency of painting in accordance with at least the color specifications of customer needs. In a prospective assembly plan of a product and a prospective painting plan of a painted part set based on a prospective production plan set in advance, at least a painting plan on the day of painting is input from a terminal in a latest predetermined period. Correction is performed based on the product request information of the user, and in the coating plan on the day of the coating after the correction, the painting execution specification gives priority to the product type, and the same product type is grouped by the same color. Further, in the painting plan on the day of the painting after the modification, the painting execution specification gives priority to each color, and the same color is arranged by product type.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a supply chain system for painted products.

[0002]

[Prior art] Products painted according to customer needs,
There are systems that produce products incorporating painted parts, and supply chain systems that procure, produce, ship, and sell.

[0003] As this product, for example, a bicycle, a motorcycle, a car, an electric device, an instrument, furniture and the like, or a single spare part of a part of which is partially or wholly painted. is there.

[0004] A conventional coating system is provided with a transfer device in a factory building 99, for example, as shown in FIG.
The conveyor 100 is moved along the trajectory of the transport line, the work K is held by the work holder 101 provided on the conveyor 100, and the conveyor 1 is moved by the coating casing 102.
The workpiece K is coated by a coating device 104 in a coating room 103 provided so as to surround 00.

[0005]

By the way, it is required to deliver a product early in response to a customer's purchasing needs. Furthermore, customer needs for product colors and other specifications are diversifying, and it is necessary to have a large variety of product stocks in order to deliver products at an early stage, resulting in problems such as deterioration in management efficiency.

The present invention has been made in view of the above circumstances, and has as its object to provide a supply chain system that increases the efficiency of coating at least in accordance with the color specifications required by customers.

[0007]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to the first aspect of the present invention, at least one of a prospective assembly plan of a product and a prospective painting plan of a painted part set based on a prospective production plan set in advance, at least a painting plan on the day of painting is used. Based on the user's product request information input from the terminal for a predetermined period of time, the correction is made, and in the coating plan on the day of the coating after this correction, the coating execution specification gives priority to the product type, and for the same product type, A supply chain system characterized by being organized by the same color. ].

According to the first aspect of the present invention, an order is made based on an order input from a user terminal, an order input from a sales terminal, and the like, and the expected production is modified by the latest order, so that inventory is reduced. be able to. In addition, since the product type is prioritized over the color, it is possible to avoid complicated loading at the entrance and the exit of the transport line.

[0010] The invention according to claim 2 is that, among the expected assembly plan of the product and the expected painting plan of the painted parts set based on the expected production plan set in advance, at least the painting plan on the day of painting is set in the latest. Based on the user's product request information input from the terminal for a predetermined period of time, to make corrections, in the coating plan of this correction on the painting day, the painting execution specifications, color-based priority, for the same color, A supply chain system that is organized by product type. ].

According to the second aspect of the invention, the expected production is modified by the latest order, so that the inventory can be reduced. Also, since the color classification is given priority over the product type, the number of color changes in the coating apparatus can be reduced.

[0013] The invention according to claim 3 is that the prospective production plan set in advance is formulated based on the sales results and the product request information of the user input from the end in the last predetermined period. The supply chain system according to claim 1 or 2, wherein: ].

According to the third aspect of the present invention, the future demand is predicted based on the past sales results and the latest consumer order data, and the expected production plan is set. Therefore, the demand with higher accuracy is predicted. be able to. In addition, product inventory or product shortage can be reduced.

According to a fourth aspect of the present invention, there is provided a coating system which is used in the supply chain system and in which a coating plan on the day of the modified coating is implemented, the supply of the work to the transfer line based on the coating plan and the transfer line. To carry out the work into the paint casing provided adjacent to the transfer line, to paint the work in the paint casing, and to carry out the work from the paint casing to the transfer line. The supply chain system according to any one of claims 1 to 3, wherein the coating on the work is made to correspond to the color information. ].

According to the fourth aspect of the invention, in addition to being able to reduce product inventory or product shortage,
Since the work is moved from the transfer line into the coating casing, the paint on the work on the transfer line is less likely to be coated with the paint being coated, and color change can be performed efficiently. Further, the transfer tact time of the work on the transfer line can be shortened, and the efficiency of coating can be increased.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a supply chain system according to the present invention will be described in detail with reference to the drawings, but the present invention is not limited to this embodiment.

First, a supply chain system will be described with reference to FIG.

The order input data from the user terminal 180 and the order input data from the business terminal 181 are sent to the in-house server 183 and the in-house LAN via the Internet system 182.
It is taken into the host computer 185 via 184,
It is stored in the memory in the form of an order data table for each of the assembly product and the component part.

A part factory computer 187, an assembly factory computer 188, a painting factory computer 189, a purchasing department computer 190, a sales department computer 191 and a shipping distribution department computer 192 are connected to the in-house LAN 184.

The host computer 185 formulates an expected production plan based on, for example, a sales performance data table accumulated for the past one year, sales performance for the last month, and various economic trend data, for example. Further, a production plan is corrected by taking in an order data table for a recent predetermined period, for example, one week. As a result, an assembly plan table for each assembly line and a component part single item production plan table are created.

The host computer 185 instructs the in-house parts factory computer 187 to execute the planning of the production of parts based on the production plan.
The order is ordered from the part maker 193 via the purchasing department computer 190 via the purchasing department computer 190, or the part is ordered from the part maker 193 via the trading company 194.

On the other hand, the paint factory computer 189 formulates a paint plan based on an assembly plan and a component part production plan, and stores the data in a memory as a paint plan.
Similarly, a paint order plan and a paint factory maintenance plan are formulated, and the data of the paint order plan table and the paint factory maintenance plan are respectively transmitted to the purchasing department computer 190 via the in-house LAN 184.
And store it in the memory there and place an order as appropriate.

FIG. 2 is a diagram showing the implementation of the supply chain system. In this supply chain system, the expected production plan formulation date is set to N, N + 1, N + 2 ...
And

On the expected production plan formulation date N, the sales performance and the period tn (for example, one month) at the end of the period Tn (for example, one year) preceding by ΔT1 (the period required for planning, for example, one week) )), A future demand is predicted based on the assembly result a), and a daily assembly production plan for a predetermined period Tan is formulated. The assembly result a reflects the correction based on the latest order data of the assembly, and as a result, reflects the order data of the last month, for example, as described above.

Similarly, on the expected production plan formulation date N + 1,
The future demand is predicted based on the sales performance in the period Tn + 1 preceding the end of the period by ΔT1 and the actual assembly a in the period tn + 1, and the daily assembly production plan in the predetermined period Tan + 1 is calculated on the estimated production plan formulation date N + 2. The future demand is predicted based on the sales performance in the period Tn + 2 ending at the end of the period by ΔT1 and the assembly result a in the period tn + 2, and the daily assembly production plan in the predetermined period Tan + 2 is formulated.

At the same time, on the anticipated production plan formulation date N, during the period Tan, a daily painting plan is created in a period Tbn preceding by ΔT2, which is a period required for the finished product to be delivered to the assembly factory. Similarly, on the expected production plan formulation date N + 1, the daily painting plan in the period Tbn + 1 preceding the period Tan + 1 by ΔT2 is similarly calculated, and on the expected production plan formulation date N + 2, the daily painting plan in the period Tbn + 2 is advanced by the period Tan + 2 by ΔT2. Develop a painting plan.

In carrying out the painting, the painting is carried out by correcting the painting plan on the day of painting based on consumer order data for a predetermined number of preceding days T0, for example, one week including the previous day. The result of the painting execution based on the corrected painting plan is the painting result Bpr. And the continuous one is the painting result B '.

In assembling, the assembling plan on the day of the assembling is corrected based on the actual painting data for a predetermined number of days Tl, for example, 10 days, including the previous day, and the assembling production is performed. This result is the assembly performance Apr. And the continuous one is the assembly result A '. That is, the assembly results Apr. A correction to the latest order data is incorporated into the data.

Since the coating plan is corrected based on the latest order data and the assembly plan is corrected based on the latest coating results, it is possible to promptly deliver a product of a desired color to the user. Further, when shipping the painted product to the assembly factory, the painted product inventory or the lack of the painted product can be reduced.

The future demand is predicted based on the assembly results corrected and achieved based on the consumer order data, which is the future or most recent sales results, and the past sales results. can do. Note that the assembly production plan may be formulated based on the consumer order data in the period ΔT1 or a period in which the beginning of the period is further advanced, and the actual sales group. Product inventory or product shortage can be reduced.

FIG. 3 is a view showing a one-day painting plan based on the modified painting plan B 'in FIG. In the embodiment of FIG. 3A, first, black, red, white, and blue paints are continuously performed using a small-capacity paint tank unit, and the work is stopped during lunch break. In the afternoon, the blue paint is continuously performed, and then the black, red, and white paints are continuously performed using a large-capacity paint tank unit.

In the supply chain system according to the present embodiment, at least the painting plan on the day of painting, which is a prospective assembly plan of a product and a prospective painting plan of a painted part, which is set based on a prospective production plan set earlier. Based on the user's product request information input from the terminal for a predetermined period of time, the correction is made, and in the coating plan on the day of the coating after this correction, the coating execution specification gives priority to the product type, and for the same product type, Try to group by the same color. As described above, an order is made based on an order input from the user terminal, an order input from the sales terminal, and the like, and the expected production is modified by the latest order, so that inventory can be reduced. In addition, since the product type is prioritized over the color, it is possible to avoid complicated replacement at the entrance and the exit of the transport line.

In the embodiment of FIG. 3B, first, a small-capacity paint tank unit and a large-capacity paint tank unit are used, and black, red, white, and blue paints are successively performed alternately.

That is, in the supply chain system according to the present embodiment, in the painting plan on the day of the painting after the modification, the painting execution specification gives priority to each color, and the same color is grouped by product type. As described above, since the expected production is modified by the latest order, inventory can be reduced. Since the color is prioritized over the product type, the number of color changes in the coating apparatus can be reduced.

The prospective production plan set in advance is formulated on the basis of the sales results and the product request information of the user which is input from the end in the latest predetermined period. As described above, the future demand is predicted based on the past sales results and the latest consumer order data, and the expected production plan is set, so that the demand with a higher degree of usability can be predicted. In addition, product inventory or product shortage can be reduced.

FIG. 4 and FIG. 5 are configuration diagrams showing paint spraying of the painting robot. The paint spray nozzle 22a1 of the paint robot 22a is provided with a spray open / close valve 22a2, which is controlled to be opened and closed by a paint robot drive actuator (not shown). A hose 22a3 is connected to the paint spray nozzle 22a1, and the paint supply device 22a is connected via the hose 22a3.
From 4, a paint according to the specifications required for the work K is supplied. The paint in the paint spray nozzle 22a1 is given a charge having a high negative voltage by the high voltage generator 221.

As shown in FIG. 6, supply hoses 22a41 are respectively connected to the paint color changing valves V1 to Vn which form a part of the paint supply device 22a4, and the paint tanks are driven by the respective injection pumps P10. The paint of T1 is supplied via the supply hose 22a41, that is, corresponding to the color changing valves V1 to Vn, and the color change of n colors is possible.

When the color is changed, air is supplied from the cleaning device 22a5 to the paint spray nozzle 22a1 by operating the valve Va, and thinner is supplied by operating the valve Vb.
By supplying the air and the thinner, the inside of the paint spray nozzle 22a1 is cleaned from the hose 22a3.

In this embodiment, the paint switching valves V1 to Vn are used, and the color change and cleaning are performed as shown in Table 1.

In Table 1, ○ indicates valve opening,
Indicates that the valve is closed. In addition, A ... is washed B. Painted in the color 1 (for example, black) C ... Painted in the color 2 (for example, red) d ... Painted in the color of n (for example, blue) When the color of the paint is changed, air is supplied by the operation of the valve Va, thinner is supplied by the operation of the valve Vb, and the inside of the paint spray nozzle 22a1 is cleaned from the hose 22a3 by the supply of the air and the thinner. Change the color of the paint.

Next, the coating system will be described with reference to FIGS. 6 is a block diagram showing a configuration of control of the coating system, FIG. 7 is a perspective view of the coating system, FIG. 8 is a schematic configuration diagram of a work holding device, FIG. 9 is a schematic configuration diagram showing operation of the coating system, and FIG. It is a timing chart of operation of a coating system.

FIG. 6 is a block diagram showing the configuration of the control of the coating system shown in FIG. 6. A coating factory computer 189 is connected to an internal bus 900 of the coating factory. The painting system computer 903 and a plurality of painting system computers are connected to each other to exchange information.

This first coating system computer 90
Since a plurality of coating system computers, such as the second and second coating system computers 903, are similarly configured and controlled, only the configuration of the first coating system computer 902 will be described.

A memory 904 is connected to the first coating system computer 902 and controls the transfer line actuator 910. Transfer line actuator 9
Reference numeral 10 controls the movement drive actuator 912 based on the work identification information of the work identification sensor 911 installed on the transport line 10.

The first coating system computer 9
02, a first coating module CPU 920, a second coating module CPU 930, and a plurality of coating modules C
PUs are connected to each other to exchange information.

This first coating module CPU 920,
The plurality of coating module CPUs such as the second coating module CPU 930 are configured in the same manner and perform control, so that the first coating module CPU 9
Only the configuration of No. 20 will be described.

The first coating module CPU 920 is connected to a memory 921 and has a door driving actuator 92
2. Controls the painting robot drive actuator 923, main arm drive actuator 924, sub arm drive actuator 925, holder drive actuator 926, and exchange movement device drive actuator 927.

In the control of the coating system, for example, three-dimensional data input of the outer shape for each work type is input to the memory 904 in the first coating system computer 902.

Based on the input data, the first software creates each data of the injection nozzle operation control, the injection timing and the injection speed control. In addition, each data of the work position and the posture control is created by the second software. Also, the third
From the weight for each work type and the injection timing data according to the first software, data creation of main arm operation control and sub arm operation control, creation of control data of a repositioning robot, and creation of open / close control data of an opening / closing door are performed by software. .
Further, from the paint color data, paint switch valve drive control data creation, cleaning control at the time of paint switch, injection nozzle opening / closing timing, air supply valve opening / closing timing, thinner supply valve opening / closing timing data creation are performed.

The above data is stored in a memory 90 as a storage device.
4 is stored in a setup step before painting.

The position and posture of the injection nozzle and the holding of the work when the painter skilled in the art actually applies the coating for each work type without using the teaching software such as the first software and the second software. The state (= position, posture) may be measured, and data may be created directly from the measured values.

In the transfer control of the work K, for example, a pallet holding the work K is sequentially supplied to the transfer line 10 based on a coating plan under the control of the transfer line actuator 910. The identification of the work K is recognized assuming that the work K flows in an order based on the painting plan, or the identification data attached to the pallet is read in the middle of the transport line 10 to recognize the identification of the work K. Corresponding to the identification of the work K, corresponding to each data in the storage device, the opening and closing door drive actuator 922, the coating robot drive actuator 92
3. Main arm drive actuator 924, sub arm drive actuator 925, holder drive actuator 92
6. Drive and control each actuator of the exchange moving device drive actuator 927.

Each painting system computer operates each painting module CPU 920 during the operation day of the painting line, and drives the actuator of each painting module at a predetermined timing based on the modified painting plan data.

Each work is held in a work holder to which an identification label is attached, and the transfer line CPU takes in the work located upstream by the moving drive actuator into the work holder on the transfer line based on the coating schedule. Move up. The intermediate identification label is inspected and detected by the workpiece identification sensor 911, and each coating module CPU 920 is detected.
To be compared with the coating plan table data. If they do not match, the coating is performed based on the specification of the identification label, and is written in the coating result table data.

FIG. 7 is a perspective view of the coating system shown in FIG. 7. The coating system 1 is provided with a work transfer device of a transfer line 10, and a coating module 20 is provided adjacent to the transfer line 10.
Is arranged. The transfer line 10 enables the work K to move along a trajectory. A work K on the transfer line 10 that enables the work K to move along a trajectory;
A work moving device A for exchanging a work K painted by a painting device 22 arranged in a painting module 20 arranged adjacent to the transport line 10 is provided.

In this embodiment, the conveyor 11 is movable along the track, and the conveyor 11
2 is placed. The work K is supported by the support device 12, and the support device 12
From below. The support device 12 may be fixed to the conveyor 11 or may be detachable. In addition, the transport line 10 may be one in which the independent support device 12 moves by itself or pushed along the track without depending on the conveyor 11.

The transfer line 10 is housed in a housing 14 formed by a transfer casing 13.
4 is provided with a ventilation device 15. Ventilation device 15
Has an exhaust duct 15a, an exhaust fan 15b, and a processing device 15c, and the accommodation chamber 1 is driven by the exhaust fan 15b.
Air in the exhaust duct 15a through the processing device 15c.
Exhausted from outside. The processing device 15c is provided with a filter 15d that captures and separates an organic solvent that is a thinning solution of the paint. Since the outflow of the organic solvent can be reduced as described below, the installation of the processing device 15c may be cancelled.

A plurality of coating modules 20 are arranged adjacent to and along the transport line 10. In the coating module 20, the upstream side of the transport line 10 is used for undercoating, and the downstream side is used for topcoating.

The coating module 20 is provided with a coating casing 21, a coating device 22, a work holding device 23 constituting a part of the work moving device A, and a cleaning device described below. Transfer line 1 with painted casing 21
A coating room 25 is provided independently of the coating room 25. In the coating room 25, a coating device 22, a work holding device 23, and a cleaning device are arranged.

A ventilation device 26 is provided on the floor member 21 a of the coating casing 21, which will be described later, in the accommodation room 14.
5 and independently. The ventilation device 26 has an exhaust duct 26a, an exhaust fan 26b, and a processing device 26c. The air in the coating chamber 25 is driven from the exhaust port 26e provided on the floor by the driving of the exhaust fan 26b to the exhaust duct 26a via the processing device 26c. It is exhausted more outdoors. The processing device 26c is provided with a filter 26d for capturing and separating the organic solvent.

By ventilating the coating room 25 with the ventilation device 26, the ventilation device 15 of the storage room 14 can reduce the amount of mist-like paint leaking from the coating casing 21 through the opening 28 described below. Clogging due to the organic solvent can be prevented, and it can be used up to the original organic solvent adsorption capacity. Note that the amount of the organic solvent leaking through the opening 28 can be reduced.

The coating device 22 is disposed in a coating room 25, and applies a coating material to a work K held by a work holding device 23 located at a coating position by a coating robot 22a.

The work holding device 23 and the exchange moving device 3
0, the work moving device A is configured to move the work K from the support device 12 to the vicinity of the coating device 22;
The upper work K is held from below.

The work holding device 23 includes the coating casing 2
The work holding device 23 is installed on the floor 21a of the first unit 21 and grounded, as shown in FIGS.
f, the main arm 23a, the sub-arms 23b and 23c, and the work holders 23b1 and 23c that form the support extending upward.
One. The main arm 23a is rotatable or rotatable about an axis separated from the work holders 23b1 and 23c1 in the driving unit 23f. Sub arm 23b,
Reference numeral 23c is connected to the main arm 23a so as to be rotatable or rotatable around an axis. Work holder 23b1,
23c1 is a main arm 23a and sub-arms 23b, 23c
Arm 23 at a position away from the connection center axis
b, 23c, and the work K is detachable.

The driving section 23f is provided with a main motor M1 for driving the main arm 23a, and the main motor M1 causes the main arm 23a to rotate or rotate about the support shaft 23g as a fulcrum. At both ends of the main arm 23a, independently of the main motor M1, first sub-motors M2 for driving the sub-arms 23b and 23c are arranged. This first sub motor M2
, The sub-arms 23b and 23c can be freely operated with the support shaft 23h as a fulcrum without being restricted by the rotation or rotation of the main arm 23a.

At both ends of the main arm 23a, independent of the main motor M1 for driving the main arm 23a, a second sub motor M for driving the work holders 23b1 and 23c1 is provided.
3 are arranged. The work holders 23b1 and 23c1 can be freely operated via the belts 23i and 23j without being restricted by the rotation or rotation of the main arm 23a by the driving of the second sub motor M3.

The work holders 23b1, 23c1
Can be rotated or rotatable around the axis of the support shaft 23h with respect to the sub-arms 23b and 23c.
, And by rotating or rotating the work holders 23b1 and 23c1, the outer periphery of the work can be easily and reliably painted.

The work holding device 23 is connected to the main arm 2.
The sub-arms 23b, 23c are pivotally or rotatably connected to the support arm 23h around the support shaft 23h, and the sub-arms 23b, 23c are located at positions separated from the connection center axis of the main arm 23a and the sub-arms 23b, 23c. 23c, a workpiece holder 23b, 2 on which the workpiece is detachable.
3c, when the main arm 23a rotates or rotates,
By rotating and placing the sub-arms 23b and 23c near the main rotation center axis, the inertial mass around the main rotation center axis can be reduced, so that the rotation or the start and stop of the main arm 23a are promptly performed. be able to.

The main arm 23a has work holders 23b1 and 23c1 at a plurality of positions on the same circumference from the rotation center axis, and can hold a plurality of works on the main arm 23a. The amount of work stored on the line 10 can be reduced. Also, if the work K is 1
Since the paint is successively guided into the paint casing 21, the color change can be immediately performed.

The coating casing 21 is provided with an opening / closing door 27 for partitioning the coating chamber 25 and the transfer line 10. The opening 28 is closed by the opening / closing door 27 during coating by driving of a door opening / closing device described below. I have.

The exchange moving device 30 is a robot, and the outdoor turntable 31 having the loaders 31a and 31b is turned by 90 degrees so that the work at the work change position and the work on the transfer line can be exchanged.

Next, the operation of the control system of the coating system shown in FIG. 6 will be described with reference to FIGS. 9 and 10.

In FIG. 9A, the coating casing 21
The opening 28 is closed by the opening / closing door 27, the coating device 22 is driven in the coating room 25, and the coating robot 22a holds the sub-arm 23c of the work holding device 23 to apply the coating material to the work K3 located at the coating position P1. Start painting to apply. The coating is performed by rotating the work K3 by 90 degrees by the work holder 23c1 of the sub arm 23c at a predetermined timing, and applying the paint to the entire work K3.

On the other hand, the outdoor turntable 31 of the exchange moving device having the loaders 31a and 31b is turned by 90 degrees, and the work reloading position P2 outside the closed door 27 is closed.
Work K of the work holder 23b1 located at
1, the loader 31b extends and lifts (lifts up) and engages (hanger chuck), while the loader 31b extends and rises to the unpainted work K2 held by the support device (pallet) 12 on the transport line 10. Lift up) and engage (hanger chuck).

Thereafter, the outdoor turntable 31 of the exchange moving device 30
Is rotated by 180 degrees, and the unpainted work K2 on the work holder 23b1 located at the work change position P2 is lowered (lifted down) by the loader 31b and disengaged (hanger unchuck) from the loader 31b. On the other hand, the work K1 painted on the support device (pallet) 12 is similarly delivered from the loader 31a. Further, after this, the outdoor turntable 31 turns by 90 degrees, and the state shown in FIG. 9B is obtained.

In FIG. 9B, the painted work K
The support device (pallet) 12 holding 1 is moved in the direction of the next process section (pallet positioning release and pallet feed), the opening and closing door 27 is opened, and the painting continued from FIG. Complete.

The supporting device (pallet) 12 holding the unpainted work K2 is sent from the pre-process section to a predetermined position (pallet positioning), and the state shown in FIG. 9C is obtained. In FIG. 9C, the sub-arm (sub-arm) 23b holding the unpainted work K2 is turned by 90 degrees, and the unpainted work K2 held by the work holder 23b1 passes through the opening 28 and is placed on the work. It moves from the replacement position P2 to the intermediate position P3, and the state shown in FIG. 9D is obtained.

In FIG. 9D, the main arm (index) 23a rotates by 180 degrees, and the positions of the sub arm 23b holding the unpainted work K2 and the sub arm 23c holding the painted work K3 are switched. That is, the painted work K3 moves to the painting position P3, and the unpainted work K2 moves to the painting position P1, and the state shown in FIG.

In FIG. 9E, the sub arm 23c is
After turning 80 degrees, the painted work K3 moves from the middle position P3 to the work replacement position P2.
7 is closed, painting is started, and the state returns to the state shown in FIG.

The work holder 23b1 or the work holder 23c1 to be located at the painting position P1.
Has 9 workpieces, each of which is turned three times during painting.
Rotate by 0 degrees. As a result, the work can be divided into four times, and the entire circumference of 360 degrees can be painted through the painting on four sides at 90 degrees. Paint, swirl, paint, swirl, paint, swirl,
After finishing the entire circumference by painting, a sub-arm (sub-arm) 23b for moving the unpainted work K2 shown in FIG. 9C from the work change position P2 to the intermediate position P3 through the opening 28. The work holder 23c1 of the other sub-arm (sub-arm) 23c is also rotated 90 degrees simultaneously with the 90-degree turn of the workpiece or during the 180-degree turn of the work holding device 23.
Rotated by degrees.

The timing chart of FIG. 10 illustrates the above contents. The work K2 before painting on the transport line 10 is moved to the painting position P1 via the work changing position P2 and the intermediate position P3, and the completed work K3 at the painting position P1 is moved to the intermediate position P3 and the work changing position P.
Then, it moves to a position on the transport line 10 through the second line. In the timing chart, the opening operation of the opening and closing door 27 is started two seconds before the painting of the fourth surface of the work K is completed, and the opening and closing door 27 is fully opened almost simultaneously with the end of the painting. This makes it possible to reduce the cycle time even if a slightly mist of paint flows out of the opening 28.

As described above, the work moving device A moves the work holder 23b between the painting position P1 and the work replacement position P2 at which the work can be detached from the work holder.
A work holding device 23 having a main arm 23b that is rotatable or rotatable around an axis separated from the first and second 23c1
And a replacement moving device 30 that enables the work at the work transfer position P2 to be replaced with the work on the transfer line 10. By simply rotating or rotating the main arm 23a, the work is moved to the painting position P1. Since the work can be moved to and from the work change position P2 where the work can be detached from the work holding device, quick movement is possible.

Further, the work moving device A is
Since the work K is moved from the position to the vicinity of the coating device 22 and the work K at the upper position is held from below, the work transfer device of the transfer line 10 or the work moving device for moving the work K of the transfer line 10 to the vicinity of the coating device 22 Even if garbage or paint falls from A, work K during painting or work K whose paint has not completely dried after painting
The surface of the workpiece K is not roughened. Further, even when the work K is painted, the paint does not easily adhere to the work transfer device itself on the transfer line 10, so that maintenance and inspection of the work transfer device A can be simplified.

The coating casing 2 having the opening 28
The work moving device A moves the work K from the support device 12 to the vicinity of the coating device 22 and the movement from the vicinity of the coating device 22 to the support device 12 through the opening 28. As a result, the transport line 10 is located outside the coating chamber 25, and the transport line 10 is separated from the coating device 22 and has an opening 28 therebetween, so that the paint sprayed from the coating device 22 collides with the workpiece K or the like. Even if the paint scatters, the scattered paint is less likely to reach the transport line 10 and the paint is less likely to adhere.

During the construction of the transfer line 10, the coating casing 21, the coating device 22, and the work moving device A
Installation work is possible, construction work can be shortened, and capital investment costs can be saved.

Next, an embodiment of the cleaning device and the ventilation device in the embodiment of the coating system will be described. FIG.
1 is a schematic configuration diagram of a cleaning device and a ventilation device of a coating system.

The coating system 1 of this embodiment is similar to the coating system shown in FIG.
10 are denoted by the same reference numerals as those in FIG.

In the coating casing 21, a coating device accommodating chamber 22 forming a part of the coating chamber 25 by the partition wall 21b is provided.
0 is formed, and the coating device 22 is disposed in the coating device housing chamber 220. The painting robot 22a of the painting device 22 is moved from the small robot opening 21b1 of the partition wall 21b to the painting room 2
5, and the work K is painted. A high voltage generator 221 is provided outside the coating casing 21, and the high voltage generator 221 is connected to a high voltage line 2 for applying a negative charge.
22, connected to the tip of the painting robot 22a,
A negative charge is given to the paint in this tip. The work K is made of metal and grounded, and is an electrodeposition coating that gives a high voltage difference between the paint in the coating device 22 and the work K, so that the paint does not easily scatter other than the work K.

The coating system 1 is provided with a washing device 24. The washing device 24 is provided with a water curtain 24a for allowing washing water to flow down along three inner walls 21c and a partition wall 21b of the coating casing 21. The washing water flowing down like a waterfall is collected in a discharge groove 24b formed in the floor 21a. The discharge groove 24b is formed below the coating casing 21, and the washing water collected in the discharge groove 24b is guided to the separation tank 24d via the discharge pipe 24c. The washing water stored in the separation tank 24d is supplied to the circulation pump 24
By driving e, the washing water is sent from the supply pipe 24f to the upper part of the four inner walls of the coating casing 21 and overflows from the sump weir 24g to cause the washing water to flow down along the three inner walls 21c and the partition wall 21b. ing. The mist-like paint sprayed from the painting device 22 and reaching the inner walls on the four sides is washed away with the washing water.

A dispersant 90 is added to the separation tank 24d, and the dispersant 90 makes the paint in the washing water non-tacky and dispersed. The washing water in the separation tank 24d is driven by a separation pump 91 via a circulating pipe 92 to drive the centrifuge 9
3, and the paint residue 94 is separated by the centrifugal separator 93.

The coating system 1 includes a ventilation device 26.
The outside air is taken in from outside through the outside air intake 26i, and the temperature and humidity of the outside air taken in by the air conditioner 26j are set to desired values and sent to the ventilation room 261 through the duct 26k. The outside air is supplied from the ventilation room 261 to the coating room 25 and the coating device accommodating room 22 through the ventilation air outlet 21d1 formed on the ceiling 21d of the coating casing 21.
Flow into 0. The air that has flowed into the coating apparatus storage chamber 220 flows to the lower part of the coating chamber 25 through the small robot opening 21b1. The floor 21a has an exhaust port 26e connected to the outlet 24b, and air for ventilation is supplied from above to the floor 21a.
Flows into the gas-liquid separation chamber 26l from the discharge groove 24b. A water draining plate 26h is arranged in the gas-liquid separation chamber 26l to prevent moisture from entering the exhaust duct 26a by driving the exhaust fan 26b. The air conditioner 26j may include an air fan inside, or may include only the exhaust fan 26b.

In the discharge groove 24b, ventilation air, washing water,
If the paint mist is discharged and only the painting robot 22a is kept clean, the paint mist and dust easily flow downward and are discharged. Further, since the flow direction of the cleaning water coincides with the flow direction of the air, the cleaning water and the paint mist can be more reliably discharged.

Next, the structure of the work holders 23b1 and 23c1 will be described in detail.
Since c1 has the same configuration, the work holder 23b1 will be described with reference to FIG.

The sub-arm 23b of the work holding device 23 is provided with a mounting portion 233, and a pin portion 233a of the mounting portion 233 is provided with a column 230 extending upward. The support 230 includes the mounting plate 234 and the pipe 23.
5 and is integrally fixed by welding 236 through a welding hole 237 in a state where the mounting plate 234 and the pipe 235 are mounted on the pin portion 233a.

Metal holding jig 3 to which work K is fixed
00 is provided with a foot 301 extending downward,
01, a cap 302 is fixed by welding 303,
A cap 302 is provided at the tip of the foot portion 301 to form a pipe-shaped portion whose upper part is closed and whose lower part is opened. The stopper 304 is located above the cap 302.
Are fixed to the feet 301 by welding.

On the other hand, the tip of the support 230 is connected to the pipe 30.
2 and a supporting portion for supporting the foot portion 301 in the pipe 235 is supported by the support portion 230.
Is provided. The support part 230 is made of metal,
3, sub arm 23b, main arm 23a, and drive unit 23f
Are grounded via the internal electrical conduction path.

Next, the support device 12 for the conveyor 11 is shown in FIG.
3 will be described. The pipe 401 of the support part 400 is fixed to the attachment part 11 a of the conveyor 11 by welding 402. The support portion 400 is provided with a second support portion 500 extending upward. The second support portion 500 is made of metal, and a cap 502 is fixed to a lower portion of the pipe 501 by welding 504 to form a pipe-like portion having an upper portion closed at an end portion of the second support portion 500 and an open lower portion. . The foot 503 is fixed to the inside of the pipe 501 by welding 504 so as to protrude downward. Foot 503 to pipe 4
01, and the cap 502 is inserted outside the pipe 401. The pipe 501, the cap 502, and the foot 503 are integrally fixed by welding 504 via a welding hole 505. Note that a stopper 516 is fixed to the pipe 501 by welding at a position above the cap 502.

On the other hand, the tip of the second support portion 500 is formed in a pipe shape that can be stored in the cap 302 of the holding jig 300, and the supporting portion that contacts and supports the foot 301 of the holding jig 300 in the pipe 501 Are provided on the second support 500.

As described above, the shape of the tip of the support 400 and the shape of the tip of the second support 500 are formed in the same manner as the shape of the tip of the support 230 of the work moving device A. I have.

On one side of the loader 31a or 31b of the exchange moving device 30, the foot 301 between the stopper 304 of the holding jig 300 and the cap 302 is grasped, and the supporting device 12
The holding jig 300 is removed from the second support 500
By inserting the tip of the foot 301 of the holding jig 300 into the pipe 235 of the strut 230 of the work moving device A, the tip of the strut 230 is moved to the foot 3 of the holding jig 300.
The unpainted work K can be moved from the support device 12 to the work moving device A by placing the holding jig 300 on the work moving device A so as to be housed in the cap 302 provided at the distal end of the work 01. Become.

Similarly, the loader 31 of the exchange moving device 30
a or 31b, the foot 301 between the stopper 304 of the holding jig 300 and the cap 302 is grasped, and the holding jig 300 is grasped and removed from the support 230 of the work moving device A. By inserting the tip of the foot 301 of the holding jig 300 into the pipe 501 of the support 500, the tip of the second support 500 is attached to the cap 302 of the tip of the foot 301 of the holding jig 300. The work moving device A for the painted work K by placing the holding jig 300 on the support device 12 so as to be stored in
From the support device 12 to the support device 12 becomes possible.

The loader 31a of the exchange moving device 30
Alternatively, while holding the pipe 501 between the stopper 516 of the second support 500 and the cap 502,
The work K is detached from the support part 400 integrally with the second support part 500 and the holding jig 300 and is moved to the work moving device A, and the other of the loaders 31a or 31b is used for the second work.
The pipe 501 between the stopper 516 of the support 500 and the cap 502 is grasped, and the workpiece moving device A receives the workpiece K.
May be removed integrally with the second support 500 and the holding jig 300 and moved to the support 400.

FIG. 14 is a diagram showing the details of the connection between the column and the foot.

The support device 12 is provided with positioning in the circumferential direction between the support portion and the foot portion. As shown in FIG. 14B, the foot portion 301 of the holding jig 300 is made of metal. Mounting pin 305 penetrates the cap 302 and the foot 301, and both ends are fixed to the cap 302 by welding 306.

Similarly, as shown in FIG. 14C, the metal mounting pins 50 are attached to the feet 503 of the second support 500.
6 penetrates the cap 502 and the foot 503, and both ends are fixed to the cap 502 by welding 507.

As shown in the sectional view of FIG. 14 (d) and the view seen from the direction of arrow A in FIG. 14 (e) of FIG. 14 (e), the pipe 235 of the support portion 230 of the work holders 23b1 and 23c1 is At the upper end, a pair of V-shaped notches 235a are formed at symmetric positions, and a positioning notch 235b is formed at an intermediate position between the V-shaped notches 235a.

The mounting of the pipe 235 and the holding jig 300 is performed as shown in the sectional view of FIG.
14 is engaged with the V-shaped notch 235a of the pipe 235 from above, and the circumferential positioning between the support portion 230 and the foot portion 301 in this mounted state is performed as shown in FIG. Weld 311 projecting inward to cap 302
The positioning pin 310 fixed by the above is engaged with the positioning notch 235b. Positioning notch 235b
Is formed with a tapered portion 235b1 so that it can be easily engaged.

That is, during the coating, the work holders 23b, 23
The work K is placed on each holding jig 300 at c1. The mounting pin 305 and the V-shaped notch 23 at the upper end of the support 230 are placed.
5a becomes an electric conduction path by making metallic contact with each other, and by applying a high potential difference between the paint and the work K in the coating device 22, electrodeposition coating becomes possible, and the paint scatters in addition to the work K. It becomes difficult to do.

Moreover, since the metal contact portion between the mounting pin 305 and the V-shaped notch 235a during the coating is covered by the cap 302, the paint does not easily adhere to the work holding fixture 2
Good electrical continuity at the metal contact portion can be ensured each time the holding jig 300 is attached to 3b1 or 23c1. Also,
The fitting of the mounting pin 305 to the V-shaped notch 235a provides excellent detachability.

Similarly to the upper end of the support 230, the upper end of the second support 500 is also formed as shown in FIGS. 14D and 14E.
In the case of detaching integrally with the support part 500 and the holding jig 300 and moving to the work moving device A for painting, the mounting pin 506 and the V-shaped notch 235 at the upper end of the support part 230 are used.
a, the mounting pin 305 and the V-shaped notch 501a at the upper end of the second support portion 500 are in metal contact with each other to form an electric conduction path, thereby enabling electrodeposition coating. In addition, since the respective metal contact portions are covered by the cap 502 and the cap 302, the paint is less likely to adhere, and good electrical continuity at the metal contact portion can be ensured for each coating. A positioning pin projecting inward from the cap 502 of the second support portion 500 is also fixed to the cap 502 at the same circumferential position as the cap 302 by welding, so that the positioning in the circumferential direction for each attachment / detachment is performed. Is also easy.

The upper end of the pipe 401 of the support portion 400 is formed as shown in FIGS. 14D and 14E similarly to the upper ends of the support portion 230 and the second support portion 500. The attachment and detachment of the holding jig 300 or the second support portion to and from the support portion can be facilitated, including positioning in the circumferential direction.

Further, the work holder 23b shown in FIG.
The positioning in the circumferential direction between the first support 230 and the foot 301 of the holding jig 300 is also configured in the same manner, and a description thereof will be omitted, but the circumferential direction between the support 230 and the foot 301 is omitted. The holding jig 30 is arranged so that the tip of the support 230 of the work moving device A is housed in the cap 302 at the tip of the foot 301 of the holding jig 300.
Since the position in the circumferential direction is determined each time 0 is placed on the work moving device A, painting is easy.

Next, another embodiment of the coating system will be described with reference to FIG. FIG. 15 is a schematic configuration diagram of the coating system.

[0114] The coating system 1 of this embodiment is similar to the coating system shown in FIG.
10 are denoted by the same reference numerals as those in FIG.

In this embodiment, two coating apparatuses 2
2, 22 ', and the coating robots 22a, 22
a 'is switched and used according to the coating specification, that is, the required coating color or paint type. That is, if one coating device (coating robot) 22 can change the color of 10 colors, two units can change the color of 20 colors.

As described above, the coating system 1 shown in FIGS. 6 to 15 is used in a supply chain system, and a coating plan on the day of coating after correction is implemented. In the coating system 1, the supply of the work K to the transfer line 10 based on the coating plan, the transfer of the work K from the transfer line 10 into the coating casing 21, the coating of the work K in the coating casing 21, and the coating. The unloading of the work K from the casing 21 to the transport line 10 is performed, and the coating of the work K in the coating casing 21 is made to correspond to the color information. In this coating system 1, in addition to reducing product stock or product shortage, the work K is moved from the transfer line 10 to the inside of the coating casing 21. It is hard to catch and color change is possible efficiently. In addition, the transfer tact time of the work K on the transfer line 10 can be shortened, and the painting efficiency can be increased.

[0117]

As described above, according to the first aspect of the present invention, an order is made based on an order input from a user terminal, an order input from a sales terminal, and the like, and expected production is corrected by the latest order. Can reduce inventory. In addition, since the product type is prioritized over the color, it is possible to avoid complicated loading at the entrance and the exit of the transport line.

According to the second aspect of the present invention, the expected production is modified by the latest order, so that the inventory can be reduced. Also, since the color classification is given priority over the product type, the number of color changes in the coating apparatus can be reduced.

According to the third aspect of the present invention, the future demand is predicted based on the past sales results and the latest consumer order data and the expected production plan is set, so that the demand with higher accuracy can be predicted. it can. In addition, product inventory or product shortage can be reduced.

According to the fourth aspect of the present invention, in addition to reducing product stocks or shortages, the work is moved from the transfer line to the inside of the coating casing. It is hard to catch and color change is possible efficiently. Further, the transfer tact time of the work on the transfer line can be shortened, and the efficiency of coating can be increased.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a supply chain system.

FIG. 2 is a diagram showing an implementation of a supply chain system.

FIG. 3 is a diagram showing a one-day painting plan based on the modified painting plan B ′ in FIG. 2;

FIG. 4 is a configuration diagram showing paint spraying of a painting robot.

FIG. 5 is a configuration diagram showing paint spraying of a painting robot.

FIG. 6 is a block diagram illustrating a configuration of control of a coating system.

FIG. 7 is a perspective view of a coating system.

FIG. 8 is a schematic configuration diagram of a work holding device.

FIG. 9 is a schematic configuration diagram showing an operation of the coating system.

FIG. 10 is a timing chart of the operation of the coating system.

FIG. 11 is a schematic configuration diagram of a cleaning device and a ventilation device of the coating system.

FIG. 12 is a cross-sectional view illustrating a configuration of a work holder.

FIG. 13 is a cross-sectional view showing a configuration of a conveyor support device.

FIG. 14 is a diagram showing details of a connection portion between a support portion and a foot portion.

FIG. 15 is a view showing another embodiment of the coating system.

FIG. 16 is a schematic configuration diagram of a conventional coating system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Painting system 10 Conveying line 12 Supporting device 22 Painting device 23 Work holding device 25 Painting room 30 Exchange moving device 180 User terminal 181 Business terminal 182 Internet system 183 In-house server 184 In-house LAN 185 Host computer 187 Parts factory computer 188 Assembly factory computer 189 Painting factory computer 190 Purchasing department computer 191 Sales department computer 192 Shipping logistics department computer A Work transfer device

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 12, 2000 (200.12.
12)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Supply chain system

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a supply chain system for painted products.

[0002]

[Prior art] Products painted according to customer needs,
There are systems that produce products incorporating painted parts, and supply chain systems that procure, produce, ship, and sell.

[0003] As this product, for example, a bicycle, a motorcycle, a car, an electric device, an instrument, furniture and the like, or a single spare part of a part of which is partially or wholly painted. is there.

[0004] A conventional coating system is provided with a transfer device in a factory building 99, for example, as shown in FIG.
The conveyor 100 is moved along the trajectory of the transport line, the work K is held by the work holder 101 provided on the conveyor 100, and the conveyor 1 is moved by the coating casing 102.
The workpiece K is coated by a coating device 104 in a coating room 103 provided so as to surround 00.

[0005]

By the way, it is required to deliver a product early in response to a customer's purchasing needs. Furthermore, customer needs for product colors and other specifications are diversifying, and it is necessary to have a large variety of product stocks in order to deliver products at an early stage, resulting in problems such as deterioration in management efficiency.

The present invention has been made in view of the above circumstances, and has as its object to provide a supply chain system that increases the efficiency of coating at least in accordance with the color specifications required by customers.

[0007]

Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.

According to the first aspect of the present invention, at least one of a prospective assembly plan of a product and a prospective painting plan of a painted part set based on a prospective production plan set in advance, at least a painting plan on the day of painting is used. Based on the user's product request information input from the terminal for a predetermined period of time, the correction is made, and in the coating plan on the day of the coating after this correction, the coating execution specification gives priority to the product type, and for the same product type, A supply chain system characterized by being organized by the same color. ].

According to the first aspect of the present invention, an order is made based on an order input from a user terminal, an order input from a sales terminal, and the like, and the expected production is modified by the latest order, so that inventory is reduced. be able to. In addition, since the product type is prioritized over the color, it is possible to avoid complicated loading at the entrance and the exit of the transport line.

[0010] The invention according to claim 2 is that, among the expected assembly plan of the product and the expected painting plan of the painted parts set based on the expected production plan set in advance, at least the painting plan on the day of painting is set in the latest. Based on the user's product request information input from the terminal for a predetermined period of time, to make corrections, in the coating plan of this correction on the painting day, the painting execution specifications, color-based priority, for the same color, A supply chain system that is organized by product type. ].

According to the second aspect of the invention, the expected production is modified by the latest order, so that the inventory can be reduced. Also, since the color classification is given priority over the product type, the number of color changes in the coating apparatus can be reduced.

[0013] The invention according to claim 3 is that the prospective production plan set in advance is formulated based on the sales results and the product request information of the user input from the end in the last predetermined period. The supply chain system according to claim 1 or 2, wherein: ].

According to the third aspect of the present invention, the future demand is predicted based on the past sales results and the latest consumer order data, and the expected production plan is set. Therefore, the demand with higher accuracy is predicted. be able to. In addition, product inventory or product shortage can be reduced.

According to a fourth aspect of the present invention, there is provided a coating system which is used in the supply chain system and in which a coating plan on the day of the modified coating is implemented, the supply of the work to the transfer line based on the coating plan and the transfer line. To carry out the work into the paint casing provided adjacent to the transfer line, to paint the work in the paint casing, and to carry out the work from the paint casing to the transfer line. The supply chain system according to any one of claims 1 to 3, wherein the coating on the work is made to correspond to the color information. ].

According to the fourth aspect of the invention, in addition to being able to reduce product inventory or product shortage,
Since the work is moved from the transfer line into the coating casing, the paint on the work on the transfer line is less likely to be coated with the paint being coated, and color change can be performed efficiently. Further, the transfer tact time of the work on the transfer line can be shortened, and the efficiency of coating can be increased.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a supply chain system according to the present invention will be described in detail with reference to the drawings, but the present invention is not limited to this embodiment.

First, a supply chain system will be described with reference to FIG.

The order input data from the user terminal 180 and the order input data from the business terminal 181 are sent to the in-house server 183 and the in-house LAN via the Internet system 182.
It is taken into the host computer 185 via 184,
It is stored in the memory in the form of an order data table for each of the assembly product and the component part.

A part factory computer 187, an assembly factory computer 188, a painting factory computer 189, a purchasing department computer 190, a sales department computer 191 and a shipping distribution department computer 192 are connected to the in-house LAN 184.

The host computer 185 formulates an expected production plan based on, for example, a sales performance data table accumulated for the past one year, sales performance for the last month, and various economic trend data, for example. Further, a production plan is corrected by taking in an order data table for a recent predetermined period, for example, one week. As a result, an assembly plan table for each assembly line and a component part single item production plan table are created.

The host computer 185 instructs the in-house parts factory computer 187 to execute the planning of the production of parts based on the production plan.
The order is ordered from the part maker 193 via the purchasing department computer 190 via the purchasing department computer 190, or the part is ordered from the part maker 193 via the trading company 194.

On the other hand, the paint factory computer 189 formulates a paint plan based on an assembly plan and a component part production plan, and stores the data in a memory as a paint plan.
Similarly, a paint order plan and a paint factory maintenance plan are formulated, and the data of the paint order plan table and the paint factory maintenance plan are respectively transmitted to the purchasing department computer 190 via the in-house LAN 184.
And store it in the memory there and place an order as appropriate.

FIG. 2 is a diagram showing the implementation of the supply chain system. In this supply chain system, the expected production plan formulation date is set to N, N + 1, N + 2 ...
And

On the expected production plan formulation date N, the sales result and the period tn (for example, one month) in the period Tn (for example, one year) ending at the end of ΔT1 (the period required for planning, for example, one week) The future demand is predicted based on the assembly results a of the above, and a daily assembly production plan for a predetermined period Tan is formulated. The assembly result a reflects the correction based on the latest order data of the assembly, and as a result, reflects the order data of the last month, for example, as described above.

Similarly, on the expected production plan formulation date N + 1,
The future demand is predicted based on the sales performance in the period Tn + 1 preceding the end of the period by ΔT1 and the actual assembly a in the period tn + 1, and the daily assembly production plan in the predetermined period Tan + 1 is calculated in the expected production plan formulation date N + 2. Is predicted based on the sales performance in the period Tn + 2 and the assembly performance a in the period tn + 2 ending with ΔT1, and a daily assembly production plan in a predetermined period Tan + 2 is formulated.

At the same time, on the anticipated production plan formulation date N, during the period Tan, a daily painting plan is created in a period Tbn preceding by ΔT2, which is a period required for the finished product to be delivered to the assembly factory. Similarly, on the anticipated production plan formulation date N + 1, the daily painting plan in the period Tbn + 1 that precedes the period Tan + 1 by ΔT2, and similarly, on the anticipated production plan formulation date N + 2, the daily painting plan in the period Tbn + 2 that precedes the period Tan + 2 by ΔT2. Are respectively formulated.

In carrying out the painting, the painting is carried out by correcting the painting plan on the day of painting based on consumer order data for a predetermined number of preceding days T0, for example, one week including the previous day. The result of the painting execution based on the corrected painting plan is the painting result Bpr. And the continuous one is the painting result B '.

In assembling, the assembling plan on the day of assembling is corrected based on the actual painting data for a predetermined number of days T1, for example, 10 days, including the previous day, and the assembling production is performed. This result is the assembly performance Apr. And the continuous one is the assembly result A '. That is, the assembly results Apr. A correction to the latest order data is incorporated into the data.

Since the coating plan is corrected based on the latest order data and the assembly plan is corrected based on the latest coating results, it is possible to promptly deliver a product of a desired color to the user. Further, when shipping the painted product to the assembly factory, the painted product inventory or the lack of the painted product can be reduced.

The future demand is predicted based on the assembly results corrected and achieved based on the consumer order data, which is the future or most recent sales results, and the past sales results. can do. The assembly production plan may be formulated based on the consumer order data in the period ΔT1 or a period in which the beginning of the period is further advanced, and the sales performance. Product inventory or product shortage can be reduced.

FIG. 3 is a view showing a one-day painting plan based on the modified painting plan B 'in FIG. In the embodiment of FIG. 3A, first, black, red, white, and blue paints are continuously performed using a small-capacity paint tank unit, and the work is stopped during lunch break. In the afternoon, the blue paint is continuously performed, and then the black, red, and white paints are continuously performed using a large-capacity paint tank unit.

In the supply chain system according to the present embodiment, at least the painting plan on the day of painting, which is a prospective assembly plan of a product and a prospective painting plan of a painted part, which is set based on a prospective production plan set earlier. Based on the user's product request information input from the terminal for a predetermined period of time, the correction is made, and in the coating plan on the day of the coating after this correction, the coating execution specification gives priority to the product type, and for the same product type, Try to group by the same color. As described above, an order is made based on an order input from the user terminal, an order input from the sales terminal, and the like, and the expected production is modified by the latest order, so that inventory can be reduced. In addition, since the product type is prioritized over the color, it is possible to avoid complicated replacement at the entrance and the exit of the transport line.

In the embodiment of FIG. 3B, first, a small-capacity paint tank unit and a large-capacity paint tank unit are used, and black, red, white, and blue paints are successively performed alternately.

That is, in the supply chain system according to the present embodiment, in the painting plan on the day of the painting after the modification, the painting execution specification gives priority to each color, and the same color is grouped by product type. As described above, since the expected production is modified by the latest order, inventory can be reduced. Since the color is prioritized over the product type, the number of color changes in the coating apparatus can be reduced.

The prospective production plan set in advance is formulated on the basis of the sales results and the product request information of the user which is input from the end in the latest predetermined period. As described above, the future demand is predicted based on the past sales results and the latest consumer order data and the expected production plan is set, so that the demand with higher accuracy can be predicted. In addition, product inventory or product shortage can be reduced.

FIG. 4 and FIG. 5 are configuration diagrams showing paint spraying of the painting robot. The paint spray nozzle 22a1 of the paint robot 22a is provided with a spray open / close valve 22a2, which is controlled to be opened and closed by a paint robot drive actuator (not shown). A hose 22a3 is connected to the paint spray nozzle 22a1, and the paint supply device 22a is connected via the hose 22a3.
From 4, a paint according to the specifications required for the work K is supplied. The paint in the paint spray nozzle 22a1 is given a charge having a high negative voltage by the high voltage generator 221.

As shown in FIG. 6, supply hoses 22a41 are respectively connected to the paint color changing valves V1 to Vn which form part of the paint supply device 22a4, and the paint tanks are driven by the respective injection pumps P10. The paint of T1 is supplied via the supply hose 22a41, that is, corresponding to the color changing valves V1 to Vn, and n colors can be changed.

When the color is changed, air is supplied from the cleaning device 22a5 to the paint spray nozzle 22a1 by operating the valve Va, and thinner is supplied by operating the valve Vs.
By supplying the air and the thinner, the inside of the paint spray nozzle 22a1 is cleaned from the hose 22a3.

In this embodiment, the paint switching valves V1 to Vn are used, and the color change and cleaning are performed as shown in Table 1.

In Table 1, ○ indicates valve opening,
Indicates that the valve is closed. In addition, A ... is washed B. Painted in the color 1 (for example, black) C ... Painted in the color 2 (for example, red) d ... Painted in the color of n (for example, blue) When the color of the paint is changed, air is supplied by the operation of the valve Va, thinner is supplied by the operation of the valve Vs, and the inside of the paint spray nozzle 22a1 is cleaned from the hose 22a3 by the supply of the air and the thinner. Change the color of the paint.

Next, the coating system will be described with reference to FIGS. 6 is a block diagram showing a configuration of control of the coating system, FIG. 7 is a perspective view of the coating system, FIG. 8 is a schematic configuration diagram of a work holding device, FIG. 9 is a schematic configuration diagram showing operation of the coating system, and FIG. It is a timing chart of operation of a coating system.

FIG. 6 is a block diagram showing the configuration of the control of the coating system shown in FIG. 6. A coating factory computer 189 is connected to an internal bus 900 of the coating factory. The painting system computer 903 and a plurality of painting system computers are connected to each other to exchange information.

This first coating system computer 90
Since a plurality of coating system computers, such as the second and second coating system computers 903, are similarly configured and controlled, only the configuration of the first coating system computer 902 will be described.

A memory 904 is connected to the first coating system computer 902 and controls the transfer line actuator 910. Transfer line actuator 9
Reference numeral 10 controls the movement drive actuator 912 based on the work identification information of the work identification sensor 911 installed on the transport line 10.

The first coating system computer 9
02, a first coating module CPU 920, a second coating module CPU 930, and a plurality of coating modules C
PUs are connected to each other to exchange information.

This first coating module CPU 920,
The plurality of coating module CPUs such as the second coating module CPU 930 are configured in the same manner and perform control, so that the first coating module CPU 9
Only the configuration of No. 20 will be described.

The first coating module CPU 920 is connected to a memory 921 and has a door driving actuator 92
2. Controls the painting robot drive actuator 923, main arm drive actuator 924, sub arm drive actuator 925, holder drive actuator 926, and exchange movement device drive actuator 927.

In the control of the coating system, for example, three-dimensional data input of the outer shape for each work type is input to the memory 904 in the first coating system computer 902.

Based on the input data, the first software creates each data of the injection nozzle operation control, the injection timing and the injection speed control. In addition, each data of the work position and the posture control is created by the second software. Also, the third
From the weight for each work type and the injection timing data according to the first software, data creation of main arm operation control and sub arm operation control, creation of control data of a repositioning robot, and creation of open / close control data of an opening / closing door are performed by software. .
Further, from the paint color data, paint switch valve drive control data creation, cleaning control at the time of paint switch, injection nozzle opening / closing timing, air supply valve opening / closing timing, thinner supply valve opening / closing timing data creation are performed.

The above data is stored in a memory 90 as a storage device.
4 is stored in a setup step before painting.

The position and posture of the injection nozzle and the holding of the work when the painter skilled in the art actually applies the coating for each work type without using the teaching software such as the first software and the second software. The state (= position, posture) may be measured, and data may be created directly from the measured values.

In the transfer control of the work K, for example, a pallet holding the work K is sequentially supplied to the transfer line 10 based on a coating plan under the control of the transfer line actuator 910. The identification of the work K is recognized assuming that the work K flows in an order based on the painting plan, or the identification data attached to the pallet is read in the middle of the transport line 10 to recognize the identification of the work K. Corresponding to the identification of the work K, corresponding to each data in the storage device, the opening and closing door drive actuator 922, the coating robot drive actuator 92
3. Main arm drive actuator 924, sub arm drive actuator 925, holder drive actuator 92
6. Drive and control each actuator of the exchange moving device drive actuator 927.

Each painting system computer operates each painting module CPU during the operation day of the painting line, and drives the actuator of each painting module at a predetermined timing based on the modified painting plan data.

Each work is held in a work holder to which an identification label is attached, and the transfer line CPU takes in the work located upstream by the moving drive actuator into the work holder on the transfer line based on the coating schedule. Move up. The halfway identification label is inspected and detected by the workpiece identification sensor 911, sent to each coating module CPU, and collated with the coating plan table data. If they do not match, the coating is performed based on the specification of the identification label, and is written in the coating result table data.

FIG. 7 is a perspective view of the coating system shown in FIG. 7. The coating system 1 is provided with a work transfer device of a transfer line 10, and a coating module 20 is provided adjacent to the transfer line 10.
Is arranged. The transfer line 10 enables the work K to move along a trajectory. A work K on the transfer line 10 that enables the work K to move along a trajectory;
A work moving device A for exchanging a work K painted by a painting device 22 arranged in a painting module 20 arranged adjacent to the transport line 10 is provided.

In this embodiment, the conveyor 11 is movable along the track, and the conveyor 11
2 is placed. The work K is supported by the support device 12, and the support device 12
From below. The support device 12 may be fixed to the conveyor 11 or may be detachable. In addition, the transport line 10 may be one in which the independent support device 12 moves by itself or pushed along the track without depending on the conveyor 11.

The transfer line 10 is housed in a housing 14 formed by a transfer casing 13.
4 is provided with a ventilation device 15. Ventilation device 15
Has an exhaust duct 15a, an exhaust fan 15b, and a processing device 15c, and the accommodation chamber 1 is driven by the exhaust fan 15b.
Air in the exhaust duct 15a through the processing device 15c.
Exhausted from outside. The processing device 15c is provided with a filter 15d that captures and separates an organic solvent that is a thinning solution of the paint. Since the outflow of the organic solvent can be reduced as described below, the installation of the processing device 15c may be cancelled.

A plurality of coating modules 20 are arranged adjacent to and along the transport line 10. In the coating module 20, the upstream side of the transport line 10 is used for undercoating, and the downstream side is used for topcoating.

The coating module 20 is provided with a coating casing 21, a coating device 22, a work holding device 23 constituting a part of the work moving device A, and a cleaning device described below. Transfer line 1 with painted casing 21
A coating room 25 is provided independently of the coating room 25. In the coating room 25, a coating device 22, a work holding device 23, and a cleaning device are arranged.

A ventilation device 26 is provided on the floor member 21 a of the coating casing 21, which will be described later, in the accommodation room 14.
5 and independently. The ventilation device 26 has an exhaust duct 26a, an exhaust fan 26b, and a processing device 26c. The air in the coating chamber 25 is driven from the exhaust port 26e provided on the floor by the driving of the exhaust fan 26b to the exhaust duct 26a via the processing device 26c. It is exhausted more outdoors. The processing device 26c is provided with a filter 26d for capturing and separating the organic solvent.

By ventilating the coating room 25 with the ventilation device 26, the ventilation device 15 of the storage room 14 can reduce the amount of mist-like paint leaking from the coating casing 21 through the opening 28 described below. Clogging is prevented, and the original organic solvent can be used up to the full adsorption capacity. Note that the amount of the organic solvent leaking through the opening 28 can be reduced.

The coating device 22 is disposed in a coating room 25, and applies a coating material to a work K held by a work holding device 23 located at a coating position by a coating robot 22a.

The work holding device 23 and the exchange moving device 3
0, the work moving device A is configured to move the work K from the support device 12 to the vicinity of the coating device 22;
The upper work K is held from below.

The work holding device 23 includes the coating casing 2
The work holding device 23 is installed on the floor 21a of the first unit 21 and grounded, as shown in FIGS.
f, the main arm 23a, the sub-arms 23b and 23c, and the work holders 23b1 and 23c that form the support extending upward.
One. The main arm 23a is rotatable or rotatable about an axis separated from the work holders 23b1 and 23c1 in the driving unit 23f. Sub arm 23b,
Reference numeral 23c is connected to the main arm 23a so as to be rotatable or rotatable around an axis. Work holder 23b1,
23c1 is a main arm 23a and sub-arms 23b, 23c
Arm 23 at a position away from the connection center axis
b, 23c, and the work K is detachable.

The driving section 23f is provided with a main motor M1 for driving the main arm 23a, and the main motor M1 causes the main arm 23a to rotate or rotate about the support shaft 23g as a fulcrum. At both ends of the main arm 23a, independently of the main motor M1, first sub-motors M2 for driving the sub-arms 23b and 23c are arranged. This first sub motor M2
, The sub-arms 23b and 23c can be freely operated with the support shaft 23h as a fulcrum without being restricted by the rotation or rotation of the main arm 23a.

At both ends of the main arm 23a, independent of the main motor M1 for driving the main arm 23a, a second sub motor M for driving the work holders 23b1 and 23c1 is provided.
3 are arranged. The work holders 23b1 and 23c1 can be freely operated via the belts 23i and 23j without being restricted by the rotation or rotation of the main arm 23a by the driving of the second sub motor M3.

The work holders 23b1, 23c1
Can be rotated or rotatable around the axis of the support shaft 23h with respect to the sub-arms 23b and 23c.
, And by rotating or rotating the work holders 23b1 and 23c1, the outer periphery of the work can be easily and reliably painted.

The work holding device 23 is connected to the main arm 2.
The sub-arms 23b, 23c are pivotally or rotatably connected to the support arm 23h around the support shaft 23h, and the sub-arms 23b, 23c are located at positions separated from the connection center axis of the main arm 23a and the sub-arms 23b, 23c. 23c, a workpiece holder 23b, 2 on which the workpiece is detachable.
3c, when the main arm 23a rotates or rotates,
By rotating and placing the sub-arms 23b and 23c near the main rotation center axis, the inertial mass around the main rotation center axis can be reduced, so that the rotation or the start and stop of the main arm 23a are promptly performed. be able to.

The main arm 23a has work holders 23b1 and 23c1 at a plurality of positions on the same circumference from the rotation center axis, and can hold a plurality of works on the main arm 23a. The amount of work stored on the line 10 can be reduced. Also, if the work K is 1
Since the paint is successively guided into the paint casing 21, the color change can be immediately performed.

The coating casing 21 is provided with an opening / closing door 27 for partitioning the coating room 25 and the transfer line 10.
8 is closed.

The exchange moving device 30 is a robot, and the outdoor turntable 31 having the loaders 31a and 31b is turned by 90 degrees so that the work at the work change position and the work on the transfer line can be exchanged.

Next, the operation of the control system of the coating system shown in FIG. 6 will be described with reference to FIGS. 9 and 10.

In FIG. 9A, the coating casing 21
The opening 28 is closed by the opening / closing door 27, the coating device 22 is driven in the coating room 25, and the coating robot 22a holds the sub-arm 23c of the work holding device 23 to apply the coating material to the work K3 located at the coating position P1. Start painting to apply. The coating is performed by rotating the work K3 by 90 degrees by the work holder 23c1 of the sub arm 23c at a predetermined timing, and applying the paint to the entire work K3.

On the other hand, the outdoor turntable 31 of the exchange moving device having the loaders 31a and 31b is turned by 90 degrees, and the work reloading position P2 outside the closed door 27 is closed.
Work K of the work holder 23b1 located at
1, the loader 31b extends and lifts (lifts up) and engages (hanger chuck), while the loader 31b extends and rises to the unpainted work K2 held by the support device (pallet) 12 on the transport line 10. Lift up) and engage (hanger chuck).

Thereafter, the outdoor turntable 31 of the exchange moving device 30
Is rotated by 180 degrees, and the unpainted work K2 on the work holder 23b1 located at the work change position P2 is lowered (lifted down) by the loader 31b and disengaged (hanger unchuck) from the loader 31b. On the other hand, the work K1 painted on the support device (pallet) 12 is similarly delivered from the loader 31a. Further, after this, the outdoor turntable 31 turns by 90 degrees, and the state shown in FIG. 9B is obtained.

In FIG. 9B, the painted work K
The support device (pallet) 12 holding 1 is moved in the direction of the next process section (pallet positioning release and pallet feed), the opening and closing door 27 is opened, and the painting continued from FIG. Complete.

The supporting device (pallet) 12 holding the unpainted work K2 is sent from the pre-process section to a predetermined position (pallet positioning), and the state shown in FIG. 9C is obtained. In FIG. 9C, the sub-arm (sub-arm) 23b holding the unpainted work K2 is turned by 90 degrees, and the unpainted work K2 held by the work holder 23b1 passes through the opening 28 and is placed on the work. It moves from the replacement position P2 to the intermediate position P3, and the state shown in FIG. 9D is obtained.

In FIG. 9D, the main arm (index) 23a rotates by 180 degrees, and the positions of the sub arm 23b holding the unpainted work K2 and the sub arm 23c holding the painted work K3 are switched. That is, the painted work K3 moves to the painting position P3, and the unpainted work K2 moves to the painting position P1, and the state shown in FIG.

In FIG. 9E, the sub arm 23c is
After turning 80 degrees, the painted work K3 moves from the middle position P3 to the work replacement position P2.
7 is closed, painting is started, and the state returns to the state shown in FIG.

The work holder 23b1 or the work holder 23c1 to be located at the painting position P1.
Has 9 workpieces, each of which is turned three times during painting.
Rotate by 0 degrees. As a result, the work can be divided into four times, and the entire circumference of 360 degrees can be painted through the painting on four sides at 90 degrees. Paint, swirl, paint, swirl, paint, swirl,
After finishing the entire circumference by painting, a sub-arm (sub-arm) 23b for moving the unpainted work K2 shown in FIG. 9C from the work change position P2 to the intermediate position P3 through the opening 28. The work holder 23c1 of the other sub-arm (sub-arm) 23c is also rotated 90 degrees simultaneously with the 90-degree turn of the workpiece or during the 180-degree turn of the work holding device 23.
Rotated by degrees.

The timing chart of FIG. 10 illustrates the above contents. The work K2 before painting on the transport line 10 is moved to the painting position P1 via the work changing position P2 and the intermediate position P3, and the completed work K3 at the painting position P1 is moved to the intermediate position P3 and the work changing position P.
Then, it moves to a position on the transport line 10 through the second line. In the timing chart, the opening operation of the opening and closing door 27 is started two seconds before the painting of the fourth surface of the work K is completed, and the opening and closing door 27 is fully opened almost simultaneously with the end of the painting. This makes it possible to reduce the cycle time even if a slightly mist of paint flows out of the opening 28.

As described above, the work moving device A moves the work holder 23b between the painting position P1 and the work replacement position P2 at which the work can be detached from the work holder.
A work holding device 23 having a main arm 23b that is rotatable or rotatable around an axis separated from the first and second 23c1
And a replacement moving device 30 that enables the work at the work transfer position P2 to be replaced with the work on the transfer line 10. By simply rotating or rotating the main arm 23a, the work is moved to the painting position P1. Since the work can be moved to and from the work change position P2 where the work can be detached from the work holding device, quick movement is possible.

Further, the work moving device A is
Since the work K is moved from the position to the vicinity of the coating device 22 and the work K at the upper position is held from below, the work transfer device of the transfer line 10 or the work moving device for moving the work K of the transfer line 10 to the vicinity of the coating device 22 Even if garbage or paint falls from A, work K during painting or work K whose paint has not completely dried after painting
The surface of the workpiece K is not roughened. Further, even when the work K is painted, the paint does not easily adhere to the work transfer device itself on the transfer line 10, so that maintenance and inspection of the work transfer device A can be simplified.

The coating casing 2 having the opening 28
The work moving device A moves the work K from the support device 12 to the vicinity of the coating device 22 and the movement from the vicinity of the coating device 22 to the support device 12 through the opening 28. As a result, the transport line 10 is located outside the coating chamber 25, and the transport line 10 is separated from the coating device 22 and has an opening 28 therebetween, so that the paint sprayed from the coating device 22 collides with the workpiece K or the like. Even if the paint scatters, the scattered paint is less likely to reach the transport line 10 and the paint is less likely to adhere.

During the construction of the transfer line 10, the coating casing 21, the coating device 22, and the work moving device A
Installation work is possible, construction work can be shortened, and capital investment costs can be saved.

Next, an embodiment of the cleaning device and the ventilation device in the embodiment of the coating system will be described. FIG.
1 is a schematic configuration diagram of a cleaning device and a ventilation device of a coating system.

The coating system 1 of this embodiment is similar to the coating system shown in FIG.
10 are denoted by the same reference numerals as those in FIG.

In the coating casing 21, a coating device accommodating chamber 22 forming a part of the coating chamber 25 by the partition wall 21b is provided.
0 is formed, and the coating device 22 is disposed in the coating device housing chamber 220. The painting robot 22a of the painting device 22 is moved from the small robot opening 21b1 of the partition wall 21b to the painting room 2
5, and the work K is painted. A high voltage generator 221 is provided outside the coating casing 21, and the high voltage generator 221 is connected to a high voltage line 2 for applying a negative charge.
22, connected to the tip of the painting robot 22a,
A negative charge is given to the paint in this tip. The work K is made of metal and grounded, and is an electrostatic coating that applies a high voltage difference between the paint in the coating device 22 and the work K, so that the paint does not easily scatter outside the work K.

The coating system 1 is provided with a washing device 24. The washing device 24 is provided with a water curtain 24a for allowing washing water to flow down along three inner walls 21c and a partition wall 21b of the coating casing 21. The washing water flowing down like a waterfall is collected in a discharge groove 24b formed in the floor 21a. The discharge groove 24b is formed below the coating casing 21, and the washing water collected in the discharge groove 24b is guided to the separation tank 24d via the discharge pipe 24c. The washing water stored in the separation tank 24d is supplied to the circulation pump 24
By driving e, the washing water is sent from the supply pipe 24f to the upper part of the four inner walls of the coating casing 21 and overflows from the sump weir 24g to cause the washing water to flow down along the three inner walls 21c and the partition wall 21b. ing. The mist-like paint sprayed from the painting device 22 and reaching the inner walls on the four sides is washed away with the washing water.

A dispersant 90 is added to the separation tank 24d, and the dispersant 90 makes the paint in the washing water non-tacky and dispersed. The washing water in the separation tank 24d is driven by a separation pump 91 via a circulating pipe 92 to drive the centrifuge 9
3, and the paint residue 94 is separated by the centrifugal separator 93.

The coating system 1 includes a ventilation device 26.
The outside air is taken in from outside through the outside air intake 26i, and the temperature and humidity of the outside air taken in by the air conditioner 26j are set to desired values and sent to the ventilation room 261 through the duct 26k. The outside air is supplied from the ventilation room 261 to the coating room 25 and the coating device accommodating room 22 through the ventilation air outlet 21d1 formed on the ceiling 21d of the coating casing 21.
Flow into 0. The air that has flowed into the coating apparatus housing chamber 220 flows to the lower part of the coating chamber 25 through the small robot opening 21b1. The floor 21a has an exhaust port 26e connected to the discharge groove 24b, and air for ventilation is supplied from above to the floor 21a.
Flows into the gas-liquid separation chamber 26l from the discharge groove 24b. A water draining plate 26h is arranged in the gas-liquid separation chamber 26l to prevent moisture from entering the exhaust duct 26a by driving the exhaust fan 26b. The air conditioner 26j may include an air fan inside, or may include only the exhaust fan 26b.

In the discharge groove 24b, ventilation air, washing water,
If the paint mist is discharged and only the painting robot 22a is kept clean, the paint mist and dust easily flow downward and are discharged. Further, since the flow direction of the cleaning water coincides with the flow direction of the air, the cleaning water and the paint mist can be more reliably discharged.

Next, the structure of the work holders 23b1 and 23c1 will be described in detail.
Since c1 has the same configuration, the work holder 23b1 will be described with reference to FIG.

The sub-arm 23b of the work holding device 23 is provided with a mounting portion 233, and a pin portion 233a of the mounting portion 233 is provided with a column 230 extending upward. The support 230 includes the mounting plate 234 and the pipe 23.
5 and is integrally fixed by welding 236 through a welding hole 237 in a state where the mounting plate 234 and the pipe 235 are mounted on the pin portion 233a.

Metal holding jig 3 to which work K is fixed
00 is provided with a foot 301 extending downward,
01, a cap 302 is fixed by welding 303,
A cap 302 is provided at the tip of the foot portion 301 to form a pipe-shaped portion whose upper part is closed and whose lower part is opened. The stopper 304 is located above the cap 302.
Are fixed to the feet 301 by welding.

On the other hand, the tip of the support 230 is connected to the pipe 30.
2 and a supporting portion for supporting the foot portion 301 in the pipe 235 is supported by the support portion 230.
Is provided. The support part 230 is made of metal,
3, sub arm 23b, main arm 23a, and drive unit 23f
Are grounded via the internal electrical conduction path.

Next, the support device 12 for the conveyor 11 is shown in FIG.
3 will be described. The pipe 401 of the support part 400 is fixed to the attachment part 11 a of the conveyor 11 by welding 402. The support portion 400 is provided with a second support portion 500 extending upward. The second support portion 500 is made of metal, and a cap 502 is fixed to a lower portion of the pipe 501 by welding 504 to form a pipe-like portion having an upper portion closed at an end portion of the second support portion 500 and an open lower portion. . The foot 503 is fixed to the inside of the pipe 501 by welding 504 so as to protrude downward. Foot 503 to pipe 4
01, and the cap 502 is inserted outside the pipe 401. The pipe 501, the cap 502, and the foot 503 are integrally fixed by welding 504 via a welding hole 505. A stopper 516 is fixed to the pipe 501 by welding 507 at a position above the cap 502.

On the other hand, the tip of the second support portion 500 is formed in a pipe shape that can be stored in the cap 302 of the holding jig 300, and the supporting portion that contacts and supports the foot 301 of the holding jig 300 in the pipe 501 Are provided on the second support 500.

As described above, the shape of the tip of the support 400 and the shape of the tip of the second support 500 are formed in the same manner as the shape of the tip of the support 230 of the work moving device A. I have.

On one side of the loader 31a or 31b of the exchange moving device 30, the foot 301 between the stopper 304 of the holding jig 300 and the cap 302 is grasped, and the supporting device 12
The holding jig 300 is removed from the second support 500
By inserting the tip of the foot 301 of the holding jig 300 into the pipe 235 of the strut 230 of the work moving device A, the tip of the strut 230 is moved to the foot 3 of the holding jig 300.
The unpainted work K can be moved from the support device 12 to the work moving device A by placing the holding jig 300 on the work moving device A so as to be housed in the cap 302 provided at the distal end of the work 01. Become.

Similarly, the loader 31 of the exchange moving device 30
a or 31b, the foot 301 between the stopper 304 of the holding jig 300 and the cap 302 is grasped, and the holding jig 300 is grasped and removed from the support 230 of the work moving device A. By inserting the tip of the foot 301 of the holding jig 300 into the pipe 501 of the support 500, the tip of the second support 500 is attached to the cap 302 of the tip of the foot 301 of the holding jig 300. The work moving device A for the painted work K by placing the holding jig 300 on the support device 12 so as to be stored in
From the support device 12 to the support device 12 becomes possible.

The loader 31a of the exchange moving device 30
Alternatively, while holding the pipe 501 between the stopper 516 of the second support 500 and the cap 502,
The work K is detached from the support part 400 integrally with the second support part 500 and the holding jig 300 and is moved to the work moving device A, and the other of the loaders 31a or 31b is used for the second work.
The pipe 501 between the stopper 516 of the support 500 and the cap 502 is grasped, and the workpiece moving device A receives the workpiece K.
May be removed integrally with the second support 500 and the holding jig 300 and moved to the support 400.

FIG. 14 is a diagram showing the details of the connection between the column and the foot.

The support device 12 is provided with positioning in the circumferential direction between the support portion and the foot portion. As shown in FIG. 14B, the foot portion 301 of the holding jig 300 is made of metal. Mounting pin 305 penetrates the cap 302 and the foot 301, and both ends are fixed to the cap 302 by welding 306.

Similarly, as shown in FIG. 14C, the metal mounting pins 50 are attached to the feet 503 of the second support 500.
6 penetrates the cap 502 and the foot 503, and both ends are fixed to the cap 502 by welding 507.

As shown in the sectional view of FIG. 14 (d) and the view seen from the direction of arrow A in FIG. 14 (e) of FIG. 14 (e), the pipe 235 of the support portion 230 of the work holders 23b1 and 23c1 is At the upper end, a pair of V-shaped notches 235a are formed at symmetric positions, and a positioning notch 235b is formed at an intermediate position between the V-shaped notches 235a.

The mounting of the pipe 235 and the holding jig 300 is performed as shown in the sectional view of FIG.
14 is engaged with the V-shaped notch 235a of the pipe 235 from above, and the circumferential positioning between the support portion 230 and the foot portion 301 in this mounted state is performed as shown in FIG. Weld 311 projecting inward to cap 302
The positioning pin 310 fixed by the above is engaged with the positioning notch 235b. Positioning notch 235b
Is formed with a tapered portion 235b1 so that it can be easily engaged.

That is, during the coating, the work holders 23b, 23
The work K is placed on each holding jig 300 at c1. The mounting pin 305 and the V-shaped notch 23 at the upper end of the support 230 are placed.
5a are in electrical contact with each other by metal contact, and serve as an electric conduction path. By applying a high-voltage potential difference between the paint and the work K in the coating device 22, electrostatic painting becomes possible, and the paint scatters in addition to the work K. It becomes difficult to do.

Moreover, since the metal contact portion between the mounting pin 305 and the V-shaped notch 235a during the coating is covered by the cap 302, the paint does not easily adhere to the work holding fixture 2
Good electrical continuity at the metal contact portion can be ensured each time the holding jig 300 is attached to 3b1 or 23c1. Also,
The fitting of the mounting pin 305 to the V-shaped notch 235a provides excellent detachability.

Like the upper end of the support 230, the upper end of the second support 500 is also formed as shown by reference numerals corresponding to FIGS. 14D and 14E. Is removed integrally with the second support portion 500 and the holding jig 300, and is moved to the work moving device A for painting. 2nd support part 5
The V-shaped notches 501a at the upper end of 00 are in metal contact with each other to form an electric conduction path, thereby enabling electrostatic coating.
In addition, since each metal contact portion is covered by the cap 502 and the cap 302, it is difficult for the paint to adhere thereto,
Good electrical continuity at the metal contact can be ensured for each coating. Further, the cap 502 of the second support 500
The positioning pins protruding inward are also welded to the cap 502 at the same circumferential position as the cap 302.
Also, positioning in the circumferential direction for each attachment / detachment is easy.

The upper end of the pipe 401 of the support portion 400 is formed as shown by the reference numerals corresponding to FIGS. 14D and 14E similarly to the upper ends of the support portion 230 and the second support portion 500. The attachment and detachment of the holding jig 300 or the second support portion to and from the support portion can be facilitated, including positioning in the circumferential direction.

Further, the work holder 23b shown in FIG.
The positioning in the circumferential direction between the first support 230 and the foot 301 of the holding jig 300 is also configured in the same manner, and a description thereof will be omitted, but the circumferential direction between the support 230 and the foot 301 is omitted. The holding jig 30 is arranged so that the tip of the support 230 of the work moving device A is housed in the cap 302 at the tip of the foot 301 of the holding jig 300.
Since the position in the circumferential direction is determined each time 0 is placed on the work moving device A, painting is easy.

Next, another embodiment of the coating system will be described with reference to FIG. FIG. 15 is a schematic configuration diagram of the coating system.

[0114] The coating system 1 of this embodiment is similar to the coating system shown in FIG.
10 are denoted by the same reference numerals as those in FIG.

In this embodiment, two coating apparatuses 2
2, 22 ', and the coating robots 22a, 22
a 'is switched and used according to the coating specification, that is, the required coating color or paint type. That is, if one coating device (coating robot) 22 can change the color of 10 colors, two units can change the color of 20 colors.

As described above, the coating system 1 shown in FIGS. 6 to 15 is used in a supply chain system, and a coating plan on the day of coating after correction is implemented. In the coating system 1, the supply of the work K to the transfer line 10 based on the coating plan, the transfer of the work K from the transfer line 10 into the coating casing 21, the coating of the work K in the coating casing 21, and the coating. The unloading of the work K from the casing 21 to the transport line 10 is performed, and the coating of the work K in the coating casing 21 is made to correspond to the color information. In this coating system 1, in addition to reducing product stock or product shortage, the work K is moved from the transfer line 10 to the inside of the coating casing 21. It is hard to catch and color change is possible efficiently. In addition, the transfer tact time of the work K on the transfer line 10 can be shortened, and the painting efficiency can be increased.

[0117]

As described above, according to the first aspect of the present invention, an order is made based on an order input from a user terminal, an order input from a sales terminal, and the like, and expected production is corrected by the latest order. Can reduce inventory. In addition, since the product type is prioritized over the color, it is possible to avoid complicated loading at the entrance and the exit of the transport line.

According to the second aspect of the present invention, the expected production is modified by the latest order, so that the inventory can be reduced. Also, since the color classification is given priority over the product type, the number of color changes in the coating apparatus can be reduced.

According to the third aspect of the present invention, the future demand is predicted based on the past sales results and the latest consumer order data and the expected production plan is set, so that the demand with higher accuracy can be predicted. it can. In addition, product inventory or product shortage can be reduced.

According to the fourth aspect of the present invention, in addition to reducing product stocks or shortages, the work is moved from the transfer line to the inside of the coating casing. It is hard to catch and color change is possible efficiently. Further, the transfer tact time of the work on the transfer line can be shortened, and the efficiency of coating can be increased.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration of a supply chain system.

FIG. 2 is a diagram showing an implementation of a supply chain system.

FIG. 3 is a diagram showing a one-day painting plan based on the modified painting plan B ′ in FIG. 2;

FIG. 4 is a configuration diagram showing paint spraying of a painting robot.

FIG. 5 is a configuration diagram showing paint spraying of a painting robot.

FIG. 6 is a block diagram illustrating a configuration of control of a coating system.

FIG. 7 is a perspective view of a coating system.

FIG. 8 is a schematic configuration diagram of a work holding device.

FIG. 9 is a schematic configuration diagram showing an operation of the coating system.

FIG. 10 is a timing chart of the operation of the coating system.

FIG. 11 is a schematic configuration diagram of a cleaning device and a ventilation device of the coating system.

FIG. 12 is a cross-sectional view illustrating a configuration of a work holder.

FIG. 13 is a cross-sectional view showing a configuration of a conveyor support device.

FIG. 14 is a diagram showing details of a connection portion between a support portion and a foot portion.

FIG. 15 is a view showing another embodiment of the coating system.

FIG. 16 is a schematic configuration diagram of a conventional coating system.

[Description of Signs] 1 Coating system 10 Conveying line 12 Supporting device 22 Painting device 23 Work holding device 25 Painting room 30 Replacement moving device 180 User terminal 181 Business terminal 182 Internet system 183 In-house server 184 In-house LAN 185 Host computer 187 Parts factory Computer 188 Assembly factory computer 189 Painting shop computer 190 Purchasing department computer 191 Sales department computer 192 Shipping logistics department computer A Work transfer device

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 6

[Correction method] Change

[Correction contents]

FIG. 6

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 8

[Correction method] Change

[Correction contents]

FIG. 8

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 9

[Correction method] Change

[Correction contents]

FIG. 9

[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 13

Continuation of front page (72) Inventor Seiji Inoue 2500 Shinkai, Iwata-shi, Shizuoka Prefecture Yamaha Motor Co., Ltd. F-term (reference) 4F042 AA01 ED03 ED10 5B049 BB07 CC21

Claims (4)

[Claims] 1. A prospective assembly plan of a product set based on a prospective production plan set in advance, and a prospective painting plan of a painted part, at least a painting plan on the day of painting are inputted from a terminal in the latest predetermined period. Based on the user's product request information, and in the revised painting plan on the day of painting, the painting execution specifications prioritized the product type and grouped by the same color for the same product type Supply chain system characterized by: 2. A prospective assembling plan of a product and a prospective painting plan of a painted part set based on a prospective production plan set in advance, at least a painting plan on the day of painting are inputted from a terminal in the latest predetermined period. Based on the product request information of the user, and in the painting plan on the day of painting after this modification, the paint execution specification prioritized color by color and grouped by product type for the same color Supply chain system characterized by: 3. A prospective production plan set in advance is formulated based on sales results and user's product request information input from a short period of time in the latest predetermined period. Or the supply chain system according to claim 2. 4. A coating system which is used in the supply chain system and in which a coating plan on the day of the modified coating is implemented, wherein a work is supplied to the transfer line based on the coating plan, and the work is transferred from the transfer line to a position adjacent to the transfer line. The work is loaded into the provided casing, the work is painted in the painted casing, and the work is carried out from the painted casing to the transport line. 4. The method as claimed in claim 1, wherein
The supply chain system according to any one of the above.