JP2004314021A - Coating system and coating method for protective layer forming material - Google Patents

Abstract

Kind Code: A1 A protective layer that determines the type of a vehicle and the like after coating is completed and before the application of a protective layer forming material, and appropriately applies the protective layer forming material to the vehicle in accordance with the determined vehicle. Provided are a forming material application system and a coating method.
A first light-receiving section 84a and a second light-receiving section 84b provided on the upstream side of a coating step detect light emitted from a first light-emitting section 82a and a second light-emitting section 82b. Based on the result, the type of the vehicle 14 on the transport line 12 is determined, and when the vehicle 14 that has finished painting is carried in, the industrial robot is operated based on the teaching data to apply the protective layer forming material to the rollers. While supplying, the protective layer forming material is applied to the vehicle 14.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a coating system and a coating method of a protective layer forming material for coating a protective layer forming material on an outer surface mainly of a painted portion of a vehicle having finished painting, and in particular, a liquid acting as a peelable protective layer after drying. The present invention relates to a system and method for applying a protective layer forming material for determining the type of a vehicle or the like before applying the protective layer forming material and appropriately applying the protective layer forming material.
[0002]
[Prior art]
Vehicles such as automobiles are often stored in outdoor stock yards or transported by trailers, boats, etc. before being handed to a user after manufacturing. During this time, the vehicle is exposed to dust, metal powder, salt, oil, acid, direct sunlight, etc. Quality may be affected. In order to prevent such a situation, there has been known a method of forming a peelable protective layer (for example, refer to Patent Document 1) on a painted portion before a vehicle is shipped. The peelable protective layer is formed by applying and drying a protective layer forming material (also called a strippable paint), which is a liquid wrap material, and can protect the painted portion. In addition, it can be easily peeled at the time of removal, and does not peel naturally during normal storage.
[0003]
In the step of applying the protective layer forming material before the peelable protective layer is dried, the protective layer forming material is attached to the roller, and a plurality of workers roll the roller to apply the protective layer forming material. I have.
[0004]
A method of extracting such a protective layer forming material on a body and then blowing the air to spread the protective layer forming material in order to automate such work, reduce the burden on the worker, and uniformize the coating quality. Has been proposed (for example, see Patent Document 2). According to this method, much of the work in the step of applying the protective layer forming material is automated, and the burden on the operator can be reduced, and the tact time can be improved, which is preferable.
[0005]
In a factory that produces vehicles, a resin cover called a scratch cover may be temporarily attached so as not to damage the body during the assembling work. The scratch cover is temporarily attached to, for example, a front lateral surface of the body and is removed before shipment. It is necessary to prepare a scratch cover having a different shape for each vehicle type, and further, it is necessary to prepare a large number of scratch covers according to the daily production number on the transfer line.
[0006]
[Patent Document 1]
JP 2001-89697 A (paragraphs [0022] to [0027])
[Patent Document 2]
JP-A-8-173882 (FIG. 1)
[0007]
[Problems to be solved by the invention]
The present applicant teaches the operation of the robot by using a roller in which a protective layer forming material is impregnated at the end of the arm of the robot, and automatically, effectively, and scratches along the outer shape of the vehicle. A system and a method for applying the protective layer forming material without using a cover have already been proposed (Japanese Patent Application No. 2002-381880).
[0008]
The present invention has been made in connection with the above-mentioned patent application, and in particular, determines the type and the like of a vehicle after the completion of painting and before application of a protective layer forming material, and appropriately responds to the determined vehicle. It is an object of the present invention to provide a coating system and a coating method for a protective layer forming material, wherein the protective layer forming material is applied to the vehicle.
[0009]
[Means for Solving the Problems]
An application system for a protective layer forming material according to the present invention is provided near a transport line through which a plurality of vehicles are sequentially transported, and a robot capable of performing a teaching operation, and a roller mechanism including a rotatable roller connected to the robot. Unit, a liquid protective layer forming material that acts as a peelable protective layer after drying, and a control unit that controls the robot, wherein the control unit operates the robot based on teaching data and operates the robot. A system for applying the protective layer forming material to an outer surface of the vehicle while supplying the protective layer forming material to a roller, wherein the application system includes a type of the vehicle upstream of a step of applying the protective layer forming material. It is characterized by having a detection unit for judging the like.
[0010]
As described above, according to the present invention, the type of the vehicle and the like are detected by the detection unit before the application of the protective layer forming material. Then, only when the detection result is correct, the protective layer forming material is applied to the vehicle. For this reason, the protective layer forming material is appropriately applied to a desired portion, and no application error occurs. As a result, the coating system operates smoothly and productivity is improved.
[0011]
The detecting unit includes a light emitting unit and a light receiving unit, and determines the type of the vehicle and the like based on the presence or absence of light emitted from the light emitting unit reaching the light receiving unit. Thus, the type of the vehicle and the like can be easily and reliably determined.
[0012]
The method for applying a protective layer forming material according to the present invention includes a robot capable of teaching operation, a roller mechanism connected to the robot and having a rotatable roller, and a liquid protective layer acting as a peelable protective layer after drying. Forming material, having a detection unit for determining the type of the vehicle, etc., after coating is completed, before applying the protective layer forming material to the vehicle, the type of the vehicle and the like by the detection unit. It is characterized by determining.
[0013]
As described above, since the type of the loaded vehicle is determined before the coating process of the protective layer forming material is started, the range of application of the protective layer forming material to the vehicle, its thickness, etc. are accurately controlled, and the protective layer forming material is appropriately controlled. By applying the forming material, the production efficiency can be improved, the operation can be simplified, and the coating quality can be made uniform.
[0014]
In this case, it is preferable that the protective layer forming material is mainly composed of an acrylic copolymer agent because it is easy to apply reliably and has excellent peelability.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
A preferred embodiment of a coating system and a coating method for a protective layer forming material according to the present invention will be described below with reference to FIGS.
[0016]
As shown in FIG. 1 and FIG. 2, a coating system 10 for a protective layer forming material according to the present embodiment is provided on a transport line 12 of an automobile, and forms a protective layer on a vehicle 14 on which painting is completed. The material is applied. The coating system 10 includes three robots 16a, 16b, and 16c, which are industrial robots, a control unit 18 that controls the entire system, a tank 20 containing a protective layer forming material, and each robot from the tank 20. It has an application material pipe 22 communicating with 16a, 16b, 16c, and a water pipe 26 for supplying water from a water supply source 24 to the robots 16a, 16b, 16c. The robots 16a, 16b, 16c are controlled by robot controllers 28a, 28b, 28c connected to the control unit 18, respectively. In the present invention, the control unit 18 is provided with a detection unit 80 as described later. The detection unit 80 is located on the upstream side of the coating system 10 and determines the type of the vehicle carried into the coating system 10.
[0017]
The robots 16a and 16c are provided on the transport line 12 on the left hand side in the traveling direction of the vehicle 14, and the robot 16b is provided on the right hand side in the traveling direction. The robot 16a is provided in the forward direction, the robot 16b is provided in the middle of the travel direction, and the robot 16c is provided in the rear direction. The robots 16a, 16b, 16c can move on a slide rail 30 parallel to the transport line 12.
[0018]
A pump 32 is provided in the middle of the coating material pipeline 22, and sucks the protection layer forming material from the tank 20 and supplies it to the robots 16a, 16b, and 16c. Further, the temperature of the tank 20 and the coating material pipe 22 is controlled by a heater and a thermometer (not shown) to keep the protective layer forming material at an appropriate temperature. A roller mechanism 34 to which the protective layer forming material is supplied by the coating material pipe 22 is provided at the tip of each of the robots 16a, 16b, 16c.
[0019]
The material of the protective layer forming material is mainly composed of an acrylic copolymer agent, and preferably has two acrylic copolymer portions having different glass transition temperatures. Specifically, for example, a protective layer forming material disclosed in Patent Document 1 described above may be used. Further, the viscosity of the protective layer forming material can be adjusted by changing the mixing ratio with water and the temperature, and when the material is dried, it adheres to the vehicle 14 so that dust, metal powder, salt, oil, acid, direct sunlight, etc. Thus, the painted portion of the vehicle 14 can be chemically and physically protected. Further, when removing the vehicle 14 to the user at the time of delivery or the like, the vehicle 14 can be easily peeled off.
[0020]
As shown in FIG. 4, the robots 16a, 16b, and 16c are, for example, articulated robots for industrial use, and include a base part 40, a first arm 42, and a second arm 42 in order based on the base part 40. 44 and a third arm 46, and the roller mechanism 34 is provided at the tip of the third arm 46. The first arm 42 is rotatable about axes J1 and J2 that rotate horizontally and vertically with respect to the base 40. The second arm 44 is rotatably connected to the first arm 42 about a shaft J3. The second arm 44 can be twisted and rotated by the axis J4. The third arm 46 is rotatably connected to the second arm 44 about a shaft J5. The third arm 46 can be twisted and rotated by the axis J6.
[0021]
By the operation of the robots 16a, 16b, and 16c having such a six-axis configuration, the roller mechanism unit 34 connected to the distal end can be moved to an arbitrary position near the vehicle 14 and set in an arbitrary direction. It is possible. In other words, the roller mechanism 34 can move in six degrees of freedom. Each of the robots 16a, 16b, and 16c may have an operation unit such as a telescopic operation and a parallel link operation in addition to the rotation operation.
[0022]
The roller mechanism 34 is attached to the distal end of the third arm 46, and has a roller 48 made of a material having a cylindrical shape with a width W and capable of absorbing and storing the protective layer forming material at the distal end. The roller 48 is rotatably attached to a holding section 49, and one end of the holding section 49 is connected to the coating material pipe 22. The protective layer forming material is supplied to the axial center portion of the roller 48 from the coating material pipeline 22 so as to ooze out on the surface of the roller 48. Examples of the material of the roller 48 include a sponge and a flocked body. Further, the roller 48 is detachable from the holding portion 49, and can be replaced, cleaned, and maintained.
[0023]
As shown in FIG. 5, a combined hydraulic and pneumatic circuit (supply mechanism) 50 for supplying the protective layer forming material to the roller 48 includes a compressor 52 and an air tank connected to a discharge unit of the compressor 52. 54, a manual air pressure input valve 56 for switching between supply and cutoff of air pressure, a regulator 58 for reducing the secondary pressure by an electric signal supplied from the control unit 18, and a secondary pressure of the regulator 58 And a regulator operating valve 60 that is operated by a pilot to reduce the pressure in the application material pipeline 22. Further, the composite circuit 50 includes an MCV (Material Control Valve, supply switching valve) 62 to which the secondary pipe and the water pipe 26 of the regulator operating valve 60 are connected, and a roller 48 between the secondary of the MCV 62 and the roller 48. And a trigger valve 64 provided. Inside the MCV 62, switching valves 62a and 62b for switching between communication and shutoff of the coating material pipeline 22 and the water pipeline 26 are provided, and the secondary sides of the switching valves 62a and 62b communicate with each other. The broken line in FIG. 5 indicates a pneumatic pipeline.
[0024]
The MCV 62, the trigger valve 64, and the regulator operation valve 60 are not limited to the pneumatic pilot type, and may be of a driving type such as an electric solenoid.
[0025]
The composite circuit 50 further includes an MCV switching electromagnetic valve 66 for operating the switching valves 62a and 62b in a pilot form by switching the air pressure supplied from the pneumatic input valve 56, and a trigger switching electromagnetic valve for pilot-operating the trigger valve 64. 68. The MCV switching electromagnetic valve 66 connects one of the switching valves 62 a and 62 b and shuts off the other, and switches between water and the protective layer forming material and supplies the same to the trigger valve 64 by an electric signal supplied from the control unit 18. I do. The trigger switching electromagnetic valve 68 switches the trigger valve 64 between open and closed by an electric signal supplied from the control unit 18 and supplies water or the protective layer forming material to the roller 48.
[0026]
In the middle of the coating material pipe 22 and the water pipe 26, manual stop valves 70 and 72 are provided, respectively. Usually, the stop valves 70 and 72 are kept in communication. In the composite circuit 50, silencers 74 are provided at the air outlets, respectively, to reduce exhaust noise. The compressor 52, the pump 32, and the water supply source 24 are provided with a relief valve (not shown) for preventing an excessive rise in pressure.
[0027]
Note that the compressor 52, the air tank 54, the water supply source 24, and the pump 32 in the composite circuit 50 are common to each of the robots 16a, 16b, 16c, and the other devices are individually provided for each of the robots 16a, 16b, 16c. ing.
[0028]
Here, the detection unit 80 will be described. As shown in FIG. 3, the detecting unit 80 includes a first sensor pair 86a including a first light emitting unit 82a and a first light receiving unit 84a, and a second sensor including a second light emitting unit 82b and a second light receiving unit 84b. 86b. Specifically, a first base 88a is provided on one side of the transport line 12 of the vehicle 14 upstream of the coating system, and a first pole 90a is planted on the first base 88a. In this case, the first horizontal member 92a is mounted near the upper end of the first pole 90a so as to be vertically movable. A first light emitting portion 82a is provided near one end of the first horizontal member 92a, and a second light emitting portion 82b is movably provided at the other end of the first horizontal member 92a.
[0029]
On the other hand, a second base 88b is provided on the other side of the transfer line 12, and a second pole 90b is planted on the second base 88b. In this case, a second horizontal member 92b is mounted near the upper end of the second pole 90b so as to be vertically movable. In addition, a first light receiving portion 84a is provided near one end of the second horizontal member 92b, and a second light receiving portion 84b is provided near the other end. The first sensor pair 86a and the second sensor pair 86b are electrically connected to the control unit 18, respectively.
[0030]
Here, the vehicle 14 whose type is determined using the first sensor pair 86a and the second sensor pair 86b will be described. As shown in FIG. 3, the vehicle 14 is a so-called one-box type vehicle, and a roof portion 94 is provided with a pair of a first opening 96a and a second opening 96b for a sunroof. A first window 98a facing the driver's seat and a second window 98b facing the passenger seat are provided on the right side of the vehicle 14 in the forward direction.
[0031]
The first light emitting section 82a faces the first light receiving section 84a via the first opening 96a and the first window 98a. In other words, the positions of the first light emitting portion 82a and the second light emitting portion 82b can be adjusted via the first pole 90a and the first horizontal member 92a, and the first light receiving portion 84a and the second light receiving portion 84b The position can be adjusted via the second pole 90b and the second horizontal member 92b so as to face the first light emitting portion 82a and the second light emitting portion 82b. That is, the positions of the first horizontal member 92a and the second horizontal member 92b with respect to the first pole 90a and the second pole 90b can be adjusted according to the height of the vehicle 14, and the first light emitting portion 82a and the second light emitting portion 82a can be adjusted. The interval between the portions 82b can be adjusted on the first horizontal member 92a, and the interval between the first light receiving portion 84a and the second light receiving portion 84b can be adjusted on the second horizontal member 92b.
[0032]
In this case, the first light emitting portion 82a and the second light emitting portion 82b preferably emit infrared light, and the first light receiving portion 84a and the second light receiving portion 84b are sensors that receive the infrared light. Therefore, if infrared rays emitted from the first light emitting section 82a and the second light emitting section 82b are detected by the first light receiving section 84a and the second light receiving section 84b, respectively, the infrared rays are transmitted to the first opening 96a and the second opening 96a. This means that each part has passed through the part 96b. That is, it is determined that the vehicle 14 is a vehicle type having two sunroof openings.
[0033]
Next, a method of applying the protective layer forming material to the vehicle 14 using the protective layer forming material applying system 10 configured as described above will be described.
[0034]
First, the operation is taught to the robots 16a, 16b, 16c in advance. Instruct the robots 16a, 16b, 16c to share the bonnet portion 14a (see FIG. 1), the roof central portion 14b, and the roof rear portion 14c of the vehicle 14, and apply the protective layer forming material to each assigned portion, The teaching data taught is recorded in a predetermined recording unit of the control unit 18 and held. When the vehicle 14 is a sedan type, the robot 16c shares a trunk portion.
[0035]
As shown in FIG. 6, the robot 16a is instructed on the operation trajectories 100, 102, 104, 106, 108, and 110 so as to apply the protective layer forming material to the bonnet portion 14a by the width W of the roller 48, In particular, teaching is performed so that the edges such as those indicated by hatching portions 112 and 114 are not left unpainted. The roller mechanism 34 can operate in six degrees of freedom by the mechanism of the robot 16a, so that it can cope with complicated shapes. For example, by operating the air intake section 116 along the operation trajectory 104, The protective layer forming material can be surely applied. In addition, by appropriately adjusting the viscosity of the protective layer forming material, the protective layer forming material can be prevented from flowing down, and the protective layer forming material can be applied to the hatched portion 114 at the edge with a large inclination. Further, by setting the viscosity to be large, it can be applied to the vertical surface beside the vehicle 14. Thereby, the painted portion on the vertical surface can be protected, and the body is not damaged during the assembling work, so that the scratch cover does not need to be attached to this portion.
[0036]
The teaching of the operation of the robots 16a, 16b, and 16c actually operates the robots 16a, 16b, and 16c by operating the control unit 18, the robot controller 28a, or the dedicated operation pendant 118, for example. At this time, the operator instructs the roller 48 to contact the roller 48 along the vehicle 14 while visually confirming it.
[0037]
Also, for example, the operation teaching may be performed by a so-called off-line teaching method in which teaching is performed on a three-dimensional CAD (Computer Aided Design) using a solid model or the like without using the actual robots 16a, 16b, and 16c. In this case, for example, as shown in FIG. 7, based on the shape data of the vehicle 14, a vector V of a length L is set at an appropriate angle θ with respect to the surface, and the axis of the roller mechanism 34 is set to the vector V. The operations of the robots 16a, 16b, 16c may be automatically set so as to match.
[0038]
Note that the transport line 12 supports a plurality of vehicle types, and also supports the same vehicle type having different detailed shapes. The shape of the details is, for example, the presence or absence of a first opening 96a (see FIG. 1) for providing a sunroof, an air intake 116 (see FIG. 6), a bulge (also called a bulge), a rear spoiler, and the like. In order to cope with the plurality of vehicle types and the detailed shapes, the operation of the robots 16a, 16b, and 16c may be taught according to the individual vehicle types and the detailed shapes. The control unit 18 can receive signals indicating the vehicle type and the detailed shape from the transport line 12, select teaching data based on the signals, and operate the robots 16a, 16b, and 16c.
[0039]
The process of applying the protective layer forming material is instructed to be completed within the tact time set for each vehicle 14 on the transport line 12.
[0040]
When applying the protective layer forming material to the vehicle 14, the tank 20 (see FIG. 1) and the coating material pipeline 22 (see FIG. 4) are heated to an appropriate temperature by a predetermined heater, and the compressor 52, the water supply source 24 and the pump 32 are operated. Further, the robots 16a, 16b, and 16c are made to stand by at a position where they do not interfere with the vehicle 14, and the pneumatic input valve 56 is communicated.
[0041]
Next, the vehicle 14 after the painting is transported by the transport line 12 to a work place where the coating process is performed, and is stopped near the robots 16a, 16b, and 16c. The control unit 18 recognizes that the vehicle 14 has been loaded by a signal or a sensor (not shown) supplied from the transport line 12, and operates the robots 16a, 16b, and 16c based on the teaching data.
[0042]
At this time, the control unit 18 controls the regulator operation valve 60 via the regulator 58 (see FIG. 5), and controls the application material pipe 22 to an appropriate pressure. In addition, the control unit 18 controls the MCV 62 via the MCV switching electromagnetic valve 66 to make the coating material pipe 22 communicate with the water pipe 26 and to shut off the water pipe 26. Further, the control unit 18 operates the trigger switching electromagnetic valve 68 to make the trigger valve 64 communicate. By the operation of the control unit 18, the protective layer forming material is supplied to the roller 48 of the roller mechanism unit 34 while maintaining an appropriate pressure and an appropriate temperature, and an appropriate amount of the protective material exudes on the surface of the roller 48. Thus, the protective layer forming material can be applied to the vehicle 14. Further, the thickness of the protective layer forming material applied to the vehicle 14 can be adjusted by the pressure control by the regulator 58 and the operation speed of the robots 16a, 16b, 16c.
[0043]
At this time, the vehicle 14 may be an unfinished vehicle to which the components have not been attached, as long as the painting has been completed.
[0044]
The vehicle 14 to which the protective layer forming material has been applied by the robots 16a, 16b, 16c is transported by the transport line 12 to the next step. Next, the robots 16a, 16b, and 16c evacuate to a standby posture that does not interfere with the vehicle 14, and waits until the next vehicle 14 is carried in. At this time, the trigger valve 64 is shut off to stop the supply of the protective layer forming material.
[0045]
The applied protective layer forming material is dried by air drying or blowing to form a peelable protective layer to protect the painted portion of the vehicle 14.
[0046]
At the end of work or during maintenance, the MCV 62 is operated via the MCV switching electromagnetic valve 66 to shut off the switching valve 62a and to connect the switching valve 62b. In this manner, water is supplied from the water pipe 26, and the MCV 62, the trigger valve 64, and the roller 48 of the roller mechanism 34 can be washed. Since the roller 48 is detachable, the roller 48 may be detached from the roller mechanism 34 and washed alone.
[0047]
In the present embodiment, the type of the vehicle 14 that is transported by the transport line 12 before the protective layer forming material is applied to the vehicle 14 is determined. The type here includes information such as a vehicle type and a model. That is, in the small-lot production of various types, the types of vehicles carried in by the transport line 12 are also various, and different types of vehicles may be sequentially carried in even of the same vehicle type. In the present embodiment, data such as the vehicle type, shape, and the like for each order of the vehicles 14 to be carried in is stored in the control unit 18 in advance. In this case, the vehicle 14 temporarily stops on the transport line 12 near the position where the detection unit 80 is installed before being carried into the work place where the application process of the protective layer forming material is performed. Therefore, data is read from the control unit 18 and it is determined that the vehicle 14 once stopped is a one-box car and a vehicle having a first opening 96a and a second opening 96b in the roof. Is done. Next, the first light emitting unit 82a and the second light emitting unit 82b are energized, and the light emitted from the first light emitting unit 82a and the second light emitting unit 82b is directed to the first light receiving unit 84a and the second light receiving unit 84b, respectively. Light is emitted. The respective emitted lights reach the first light receiving portion 84a through the first opening 96a and the first window 98a, and pass through the second opening 96b and the second window 98b to the second light receiving portion 84a. The part 84b is reached. That is, since the light emitted from the first light emitting portion 82a and the second light emitting portion 82b arrives at the first light receiving portion 84a and the second light receiving portion 84b without being interrupted halfway, the vehicle 14 is a one-box car. And the control unit 18 recognizes that the roof has two openings. This discrimination result coincides with the data previously read from the control unit 18. As a result of matching the carried-in vehicle with the held vehicle data, the vehicle 14 can proceed to the step of applying the protective layer forming material.
[0048]
On the other hand, for example, although the vehicle 14 actually loaded is a one-box car having one opening in front of the roof, the vehicle data indicates a one-box car having two openings, and the first box car has two openings. Light emitted from the light emitting unit 82a passes through the first opening 96a and the first window 98a and reaches the first light receiving unit 84a, but light emitted from the second light emitting unit 82b reaches the second light receiving unit 84b. Let's assume that there wasn't. In this case, since the vehicle 14 is not recognized as a one-box car having two openings, a warning signal is issued, and the application system 10 stops accepting the vehicle 14. Then, the type of the vehicle and the like are confirmed again by the operator. If the vehicle 14 of the different vehicle type is carried into the coating system 10 and the protection layer forming material is applied by the robot 16c, the protection layer forming material is not applied to the portion corresponding to the second opening 96b, and Since the pressing force of the roller 48 is also different, an appropriate work of applying the protective layer forming material cannot be performed. In the opposite case to the above example, that is, the vehicle 14 actually loaded is a one-box car having two openings, but the vehicle data shows that the one-box car having one opening in front of the roof is provided. If it was a car, let's assume that the vehicle 14 was carried into the coating system 10 as it is. In this case, the robot 16c attempts to apply the protective layer forming material also to the second opening 96b, and the roller 48 is broken by being caught on the edge of the second opening 96b, and the repair work is also performed. It is cumbersome and the cost rises. In the present embodiment, such inconvenience does not occur.
[0049]
As described above, according to the protective layer forming material application system 10 and the application method according to the present embodiment, the roller mechanism 34 including the roller 48 is operated by the robots 16a, 16b, and 16c, and the protective layer is applied to the roller 48. By supplying the forming material, the process of applying the protective layer forming material can be automated, and the coating quality can be made uniform. Further, since the step of applying the protective layer forming material by the operator is eliminated by automation, the number of steps can be reduced and the production efficiency can be improved. Furthermore, air conditioning equipment for workers can be omitted. Therefore, energy can be saved by reducing the power required for air conditioning, the environmental resistance can be improved, and the operating cost of the factory can be reduced.
[0050]
The peelable protective layer formed by the protective layer forming material can protect the painted portion after the vehicle 14 is shipped, and can also protect the painted portion in a factory, and can be used as a substitute for a scratch cover. Therefore, it is possible to omit a large number of scratch covers having different shapes for each vehicle type.
[0051]
In the present embodiment, a vehicle which is a one-box car and has two windows in the roof portion has been described, but the present invention is not limited to this. For example, the first horizontal member 92a is lowered along the first pole 90a of the detection unit 80, and the first light emitting unit 82a is adjusted to a sedan-type vehicle having one sunroof opening. If the position of the first light receiving portion 84a is adjusted, the vehicle of the sedan type can be detected.
[0052]
The application system and application method of the protective layer forming material according to the present invention are not limited to the above-described embodiment, but may adopt various configurations without departing from the gist of the present invention.
[0053]
【The invention's effect】
As described above, according to the system and method for applying the protective layer forming material according to the present invention, the step of applying the protective layer forming material to the outer surface of the vehicle is further automated, and the protective layer forming material is appropriately applied. It can be applied to make the coating quality uniform.
[0054]
Furthermore, according to the present invention, before the vehicle is loaded into the coating system, whether the data input in advance matches the type of the vehicle that is actually waiting to be loaded on the upstream side immediately before the coating system, or the like. In order to confirm whether or not the protective layer-forming material is applied to the vehicle, if it does not match, the vehicle is prevented from being carried in and the protective layer-forming material is applied. Absent. Therefore, inconveniences such as useless work and production line stoppage for a long time can be avoided.
[Brief description of the drawings]
FIG. 1 is a perspective view of a system for applying a protective layer forming material according to the present embodiment.
FIG. 2 is a front view of a system for applying a protective layer forming material according to the present embodiment.
FIG. 3 is a perspective view of a detection unit in the protective layer forming material application system according to the present embodiment.
FIG. 4 is a perspective view of a robot and a roller mechanism provided in the robot.
FIG. 5 is a circuit diagram showing a combined hydraulic and pneumatic circuit.
FIG. 6 is a schematic perspective view showing a step of applying a protective layer forming material to a vehicle with a roller.
FIG. 7 is a schematic diagram showing the positional relationship between the robot and the outer surface of the vehicle in the process of teaching the operation of the robot by off-line teaching.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Coating system 12 ... Conveying line 14 ... Vehicle 16a, 16b, 16c ... Robot 18 ... Control part 20 ... Tank 22 ... Coating material pipe 26 ... Water pipe 30 ... Slide rail 32 ... Pump 34 ... Roller mechanism part 48 ... Roller 50 composite circuit 60 regulator operating valve 62 MCV 62a, 62b switching valve 64 trigger valve 66 MCV switching electromagnetic valve 68 trigger switching electromagnetic valve 80 detection unit 82a first light emitting unit 82b second light emitting unit 84a first light receiving portion 84b second light receiving portion 86a first sensor pair 86b second sensor pair 96a first opening 96b second opening

Claims (5)

A robot provided near a transport line on which a plurality of vehicles are sequentially transported and capable of performing a teaching operation;
A roller mechanism unit connected to the robot and including a rotatable roller;
A liquid protective layer forming material that acts as a peelable protective layer after drying,
A control unit for controlling the robot,
Wherein the control unit operates the robot based on the teaching data and applies the protective layer forming material to the outer surface of the vehicle while supplying the protective layer forming material to the roller. hand,
The coating system for a protective layer forming material, further comprising a detection unit for determining the type of the vehicle or the like upstream of the step of applying the protective layer forming material. 2. The system for applying a protective layer forming material according to claim 1, wherein the detection unit includes a light emitting unit and a light receiving unit, and determines a type of the vehicle based on whether or not light emitted from the light emitting unit reaches the light receiving unit. 3. A coating system for a protective layer forming material. 3. The coating system for a protective layer forming material according to claim 1, wherein the protective layer forming material is mainly composed of an acrylic copolymer. A robot capable of teaching,
A roller mechanism unit connected to the robot and including a rotatable roller;
A liquid protective layer forming material that acts as a peelable protective layer after drying,
A detection unit for determining the type of the vehicle,
Has,
A method for applying a protective layer forming material, wherein the type of the vehicle is determined by the detection unit after the coating is completed and before the protective layer forming material is applied to the vehicle. 5. The method for applying a protective layer forming material according to claim 4, wherein the protective layer forming material is mainly composed of an acrylic copolymer.

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