JPH08300516A - Apparatus for cutting of corrugated fiberboard - Google Patents

Abstract

PURPOSE: To facilitate continuous automation from supply of a work to taking out a product and the work after end of cutting and their stock in an apparatus for cutting of corrugated fibreboard. CONSTITUTION: A work supply stacker B, a cutting apparatus body A, and a discharge stacker C are successively brought close to each other to be arranged in series. A work-taking in device and a work-raking out device are provided to the cutting apparatus body A. Taking in of the work (a) from the supply stacker B and raking out of the work (a) after end of cutting are automatically carried out. The discharged work (a) is received with the discharge stacker C, and stocked automatically on a stock base.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated cardboard cutting device for cutting corrugated cardboard into a desired shape, and more particularly to a corrugated cardboard cutting device for automatically carrying out work supply, product removal and stocking.

[0002]

2. Description of the Related Art Conventionally, as a device for cutting a corrugated cardboard into a desired shape, particularly a device having a complicated complicated cutting line such as an XY axis, a curve, and a zigzag, a pen head of an automatic drafting device is mounted on a cutting tool. There is one that can be used as a cutting device by replacing it with a cutting head.The cutting method is a pressure method that presses the cutting tool by pressing it against the corrugated board and a vibration method that cuts by vibrating the cutting tool up and down. Have been adopted.

[0003]

The corrugated board cutting device which is also used as the automatic drafting device is mainly used for producing a single product such as a sample, and is not intended for mass production. Therefore, in the above-mentioned conventional corrugated board cutting device, the direction of the cutting tool is automatically controlled, and the cutting work is automated, but the supply of the work and the removal of the product and the work after the cutting are performed manually. It was Therefore, even if it is attempted to mass-produce using this, the productivity is poor, and it is practically impossible to use it for mass production. Then, from the supply of the work, taking out the product and the work after cutting is completed,
At present, a corrugated board cutting device that automatically performs stocking is not provided yet.

The present invention has been made in view of such a situation, and the purpose thereof is to supply the work,
It is an object of the present invention to provide a corrugated board cutting device which can automatically take out products and works after cutting and stock them continuously and is effective for mass production.

[0005]

In order to achieve the above object, in a corrugated board cutting apparatus of the present invention, a cutting apparatus main body, a supply stocker for stocking a work to be supplied to the cutting apparatus main body, and a cutting in the cutting apparatus main body are provided. The stocker that stocks the finished work is placed in series in the order of the supply stocker, the cutting device body, and the discharge stocker in that order. The cutting device body is provided with a lifter that moves up and down, and a vacuum pad that communicates with the suction pump can be moved from the supply stocker to the cutting table of the cutting device body and can be moved up and down and placed on the table. Click rear end provided scrape-out fitting for locking and vertically movably movable in a longitudinal direction of the table,
In the discharge stocker, a work receiving plate for transferring the work scraped out from the cutting device body by the advance of the scraping metal fittings locked to the rear end of the work, a stopper for fixing the position of the work on the work receiving plate, and the work A lifter for raising and lowering the receiving plate and plate removing means for moving the workpiece receiving plate to remove it from the lower surface of the work are provided.

[0006]

In the corrugated board cutting device of the present invention constructed as described above, the work stocked in the supply stocker is adsorbed by the vacuum pad and taken into the cutting table of the cutting device body. Then, after being cut by the cutting device main body, it is discharged from the cutting table by the scraping metal fitting and discharged onto the receiving plate of the discharge stocker. In the discharge stocker, the work placed on the receiving plate is in the stock base such as a trolley for stocking the processed work, or if there is a work already stocked in the stock base, It is lowered to a position close to the work, and at that position, the receiving plate is pulled out, dropped and moved onto the stock base or the already stocked work, and stocked.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the figure, A is a cutting device body, B is a cardboard (workpiece a) supply stocker, and C is a discharge stocker. The supply stocker B, the cutting device body A, and the discharge stocker C are arranged in series in this order. is there. As will be described later, in this apparatus, the work a moves in the order of the supply stocker B, the cutting apparatus main body A, and the discharge stocker C. Therefore, in the following description, the discharge stocker C side is the front, the supply stocker B side is the rear, and the discharge stocker C side. To the feed stocker B side and to the backward direction. Further, regarding the cutting device main body A, the front-back direction is the Y-axis direction, and the direction orthogonal to this is the X-axis direction.

The supply stocker B is mainly composed of a stock base 1 and a lifter 2 for moving the stock base 1 up and down, and a pair of left and right guides standing upright along the left and right side edges of the stock base 1. It has a wall 3.
The stock base 1 is composed of a pedestal having a size substantially corresponding to the size of the works a to be supplied to the cutting apparatus main body A, and the works a can be stacked and stocked on the upper surface. Therefore, the guide wall 3 also has an interval corresponding to the lateral width of the work a. The wall 3 is provided with a warp prevention device 31 for preventing the work a from warping.

The lifter 2 has four ball screws 21,
A ball nut 22 is screwed onto each of the ball screws 21. A sprocket 23 is fitted around the outer periphery of each ball nut 22, and is connected and fixed to the ball nut 22 with a screw. The chain extends over these four sprockets 23.
24 is wound and any one sprocket 23 is rotationally driven by a motor 25 (hereinafter referred to as a lifting motor).

An elevating cylinder 26, which is fitted on the ball screw 21 so as to be vertically slidable, is connected by a screw to the upper part of the sprocket 23, and a bearing is attached to a small-diameter portion formed on the upper part of the elevating cylinder 26. Bracket provided on the stock base 1 to the attachment 27 that is rotatably engaged via the
28 is fixed by connection.

Thus, in the lifter 2, when a predetermined sprocket 23 is rotated by driving a motor, all the sprockets 23 are simultaneously rotated via the chain 24, and the ball nuts 22 connected to these sprockets 23 are rotated. Therefore, the ball nut 22 rises due to its rotation direction, and as the ball nut 22 rises, the sprocket 23 and the elevating cylinder 26 that are sequentially connected to the ball nut 22 also elevate, and the attachment 27 fitted in the elevating cylinder 26 is attached. The attached stock base 1 will rise.

The raised position of the stock base 1 is the base 1
The uppermost work a'stocked above is always set at a position substantially level with the upper surface of the table 4 of the cutting apparatus main body A, and the uppermost work a'is set to the height of the table 4 surface. A work position detection sensor (not shown) detects that the height has risen to a corresponding height, and the lifting motor 25
It is designed to stop driving. On the other hand, the drive of the lifting motor 25 can be started when the work position detection sensor no longer detects the highest work a'at the table surface level. When the work a'of is supplied to the cutting device main body A, the next work a can be automatically set at substantially the same height level as the table 4 surface of the cutting device main body A to wait for the supply. Become. still,
If the lifting motor 25 is rotated in the opposite direction, the stock base 1 will of course descend.

The work warp prevention device 31 has a pressing member made of, for example, an angle member along the surfaces of the cutting device body A facing the guide walls 3 at substantially the same level as the table 4 surface. The end, that is, the end on the side away from the main body a of the cutting device is pivotally attached to the guide wall 3. Therefore, the uppermost work a'of the work a stocked on the stock base 1 is always pressed by the pressing members on the upper surfaces of the left and right side edge portions thereof, whereby warpage is prevented.

The cutting apparatus main body A is basically the same as that which also serves as a conventional automatic drafting machine. The cutting tool main body A moves the cutting tool along the XY axes with respect to the work a placed on the table 4, and in the cutting tool direction. The work a is cut out into a predetermined shape by controlling the above, and a vibration method is employed as a cutting method in which the blade a is vertically vibrated to cut the work a.

The cutting apparatus main body is provided with a pair of Y-axis frames 41 at both left and right ends of the cutting table 4 on which the work a is placed in order to move the cutting tool on the X-Y axes.
An X-axis frame 42 is slidably installed over the axis frame 41, and a cutting head 43 having a cutting tool mounted thereon is slidably attached to the X-axis frame 42, and the X-axis frame 42 and the cutting head 43 are not shown respectively. It is configured to be driven and moved by a driving device. The vertical vibration of the cutting tool is driven by a motor 44, and is transmitted to the cutting tool by a known driving force transmission means (not shown) that converts the rotational movement of the motor 44 into a linear forward / backward movement and transmits the linear movement. ing.

Further, in the cutting device main body A, a work taking-in device 5 for taking in the work a from the supply stocker B onto the table 4, and a work scraping device 6 for scraping the finished work a toward the discharge stocker C. Is provided.

The work intake device 5 is a suction pump.
It consists of a vacuum pad 52 that communicates with 51, is attached to the X-axis frame 42 via a bracket 53, and projects toward the front of the X-axis frame 42, that is, toward the supply stocker B side. The vacuum pad 52 can be positioned above the supply stocker B in a state where it is slid to 41 and moved to the rearmost position, in other words, to the position closest to the supply stocker B. The work intake device 5 is provided with an elevator 54 for moving the vacuum pad 52 up and down with an air cylinder or the like.

Therefore, when the work take-in device 5 moves the X-axis frame 42 to the rearmost position and lowers the vacuum pad 52 by the elevator 53, the vacuum pad 52 becomes the uppermost work a'of the supply stocker B. Pressed. Therefore, when the suction pump 51 is operated to move the X-axis frame 42 forward, the work a ′ at the uppermost position of the supply stocker B is adsorbed by the vacuum pad 52 and is fed from the supply stocker B to the table 4 of the cutting device body A. Pulled up. (See Fig. 4)

In this embodiment, since the last retracted position of the vacuum pad 52 is arranged at the foremost end of the supply stocker B, and the most advanced position thereof is substantially the middle position of the table 4 in the Y-axis direction, the work intake device 5 is provided. In one operation of, the work a ′ is completely removed from the table 4 of the cutting device main body A.
It is not possible to move up and therefore one work piece a '
On the other hand, by repeating the operation of the work take-in device twice, the work a'is taken into the cutting device main body A. (See Fig. 5)

In the operation of the work intake device 5, the suction pump 51 operates from the time when the vacuum pad 52 is pressed against the work a'to the time when it advances to reach the most advanced position. At other times, the operation of the suction pump 51 is stopped.

The work scraping device 6 is mounted on the X-axis frame 42,
It is provided with the cutting head 43 and the like, and is composed of a hook-shaped (inverted L-shaped) scraping metal fitting 61, and an elevator 62 for moving the metal fitting 61 up and down by an air cylinder or the like.
Further, the work scraping device 6 is configured such that, in the lowered position of the scraping metal fitting 61, the height position of the lower end thereof is slightly lower than the height position corresponding to the upper surface of the work a placed on the cutting table. ing.

Therefore, in the work scraping device 6 with the work a placed at a predetermined position on the cutting table 4, the X-axis frame 42 is retracted to the last retracted position and the scraping metal 61 is lowered. If this is done, the lower end of the scraping metal 61 is caught on the rear end surface of the work a on the cutting table 4. Therefore, if the X-axis frame 42 is then advanced to the most advanced position, the X-axis frame 42 will move along with it. The work a is transferred to the front, and the cutting table 4
Can be scraped out toward the outside of the front part of the sheet, that is, toward the discharge stocker C. (See Figure 7)

On the other hand, in the table 4 of the main body A of the cutting apparatus, a large number of air suction holes 45 are formed in the portion 4a on which the work a is placed, and the back side of the table 4 communicates with the suction pump 47 via the duct 46. Has been done. Therefore, when the suction pump 47 is operated while the work a is placed on the table 4, the work a is adsorbed and fixed to the surface of the table 4 by its suction force. The operation of the suction pump 47 is continued during the cutting work.
(See Figure 6)

The work a is placed on the upper surface of the table 4.
Positioning devices 7a and 7b for determining the front, rear, left and right positions of the are provided. The positioning device 7a, which determines the position in the left-right direction,
The one side edge of the work a taken in on the table 4 is pressed and the other side edge is pressed against a positioning guide (not shown) to adjust the horizontal position of the work a. A push plate 71 that is provided on the side of and pushes the side edge of the work is configured to move forward and backward by the cylinder 72 in the direction perpendicular to the Y axis.

The positioning device 7b for determining the position in the front-rear direction adjusts the position of the work a in the front-rear direction by pressing the front end of the work a loaded on the table 4 with the contact plate 73. Table 4 is pivotally attached to 4 sides
One half of the contact plate 73 that rotates on the same surface as the air surface is an air cylinder
The contact plate 73 is connected to the air cylinder 74, the pad plate 73 is rotated by the forward movement of the air cylinder 74, and the other half part is invaded to the frontmost part of the work mounting portion 4a, and is retracted to retreat from the work mounting portion 4a. There is. The front-rear direction positioning devices 7b are provided on the left and right sides of the work mounting portion 4a of the table 4, respectively.

The discharge stocker C is provided adjacent to the front end of the cutting device body A and continuously with the cutting device body A. It is desirable to provide a conveyor or guide 48 for transferring a work between the cutting device body A and the discharge stocker C.

The discharge stocker C has a pair of elevating frames 8 facing each other with a necessary interval (for example, an interval slightly wider than the lateral width of the work a), and the elevating frame 8 is supported by a lifter 9 to support the work. It extends horizontally in the scraping direction of a and is lifted and lowered by the lifter 9. Since the lifter 9 of the discharge stocker C has exactly the same structure as the lifter 2 of the supply stocker B, a detailed description thereof will be omitted here, but the work stock surrounded by the line connecting the four ball screws 91 of the lifter is omitted. Stock dolly as a stock base in space c
100 will be deployed freely.

Rotating shafts 81 are mounted on both ends of the elevating frame 8 in its extension direction (hereinafter referred to as front-rear direction), and one rotating shaft 81 is rotationally driven by a motor 82 (hereinafter referred to as plate driving motor). It is supposed to be done.
A pair of left and right sprockets 83 is provided on each rotating shaft 81, a chain 84 is wound around the left and right sprockets 83, and a work receiving plate 85 is provided across the left and right chains 84. ing.

The work receiving plate 85 is formed by arranging a large number of narrow plate single plates 85a in a saw-like shape.
Left and right chains 84 in the length direction of each plate unit 85a
It is fixed via attachment 86. The work receiving plate 85 is provided at approximately half the circumference of the chain 84, and the inner surface of the chain 84 with respect to the running track is the work receiving surface. Thus, the work receiving plate 85 travels with the chain 84 as the sprocket 83 is rotated by the motor.

In the discharge stocker C, the lifting frame 8 is usually at the uppermost position, and the work receiving surface of the work receiving plate 85 is continuous with the cutting table 4 of the main body A of the cutting apparatus. It is located upward on the plane. Therefore, if the work a is scraped from the table 4 of the cutting device body A,
The work a moves to the work receiving plate 85 of the discharge stocker C. (See Figure 7)

A front end of the work a transferred to the stocker C hits the discharge stocker C, and a stopper 87 for fixing the position of the work a on the work receiving plate 85 extends between the elevating frames 8. It is provided. Whether or not the work a transferred from the cutting ink device main body A has been moved to a predetermined position of the work receiving plate 85 can be confirmed by providing a work transfer detection sensor such as a beam sensor near the stopper.
On the other hand, the lifter 9 can be operated to lower the elevating frame 8 based on the detection signal generated by the work transfer detection sensor.

The lowering operation of the lifter 9 is carried out by driving a lifting motor 95. In this lifting motor 95, the work receiving plate 85 is stocked with the work a on the work stock carriage 100 or already on the carriage 100. Sometimes it is configured to lower and stop to a height position close to the upper surface of the uppermost work a ″. At this time, whether or not the elevating frame 8 has descended to a required height position is determined by, for example, elevating and lowering. It can be confirmed by a sensor 88 (referred to as a frame position confirmation sensor) provided below the frame 8. A beam sensor is used as the frame position confirmation sensor 88, and is stocked on the upper surface of the carriage 100 or on the carriage 100. A detection signal is output when the upper surface of the uppermost work a ″ is detected, and the lifting motor 95 is driven based on the generation of this detection signal. The movement can be stopped.

It is needless to say that the lifter 9 can raise and return the raising and lowering fleme 8 from the lowered position to the original raised position by driving the raising and lowering motor 95 in the opposite direction to the above.

Further, when the discharge stocker C drives the plate driving motor 82, the work receiving plate 85 is turned upside down and runs around, and the work a supported by the plate 85 can be dropped. .

That is, since the front end of the work a is in contact with the stopper 87 on the work receiving plate 85, the plate driving motor is placed in the state where the work a is placed on the plate 85.
Even if 82 is driven and the work receiving plate 85 is run,
The work a cannot move together with the plate 85, the plate 85 is pulled out from the lower surface of the work a, and the work a drops by the pulling out of the plate 85 from the end where it is no longer supported.

Therefore, the plate driving motor 82, the sprocket 83, the chain 84, etc. constitute a plate removing means 800 for removing the plate from under the work a.

Therefore, as described above, the work receiving plate 85 is attached to the upper surface of the work stock carriage 100 or already the carriage 100.
When the work a is stocked on top, if the plate driving motor 82 is driven in a state of being lowered to a height position close to the upper surface of the uppermost work a ″, the work a is pulled out by pulling out the plate. The trolley 100 that is at a short distance from the end where there is no support will gradually fall like slipping onto the top surface of the trolley 100 or the stocked work a, and the cutout parts, that is, the products will fall apart from the work a and fall apart. Note that the lifting frame 8 drops the work a on the work receiving plate 85 and then activates the lifter 9 to return it to the ascending position, so that the next work is carried out. You can prepare for receipt.

As described above, in the corrugated board cutting device having such a construction, in the stocker B, the stocked work a is lifted by the lifter 2 and the uppermost work a '.
Is held at the same height level as the cutting table 4 of the cutting apparatus main body A, and in the cutting apparatus main body A, the work a at the top of the supply stocker B is taken into the cutting table by the work taking-in apparatus 5 and the cutting processing is performed. The scraping device 6 discharges a from the cutting device body A to the discharge stocker C, and the discharge stocker C receives the work a discharged from the cutting device body A by the receiving plate 85. Further, in the discharge stocker c, the received work a is lowered to a position close to the topmost work a "if there is a stock a such as a trolley 100 for stock or a stock a already stocked in the stock base. It is possible to pull out the receiving plate 85 at that position, drop it so as to slide it down on the stock base 100 or the stocked work a, and stock it, but the operation timing of each part described is necessary. It is controlled arbitrarily by the control device based on the detection of the sensor provided in various places and the timer.Therefore, it is possible to control so as to continuously and automatically repeat the series of operations from the supply of the work to the stock of the product. It is possible.

In FIG. 2, the suction pump 51 for suction of the vacuum pad 52 and the suction pump 47 for suction of the work on the table 4 are separately provided for convenience of description, but one suction pump should be shared. Of course, it is also optional.

[0040]

The present invention is configured as described above, and has the following effects. The supply stocker can automatically set the work at a height position where it can be easily supplied to the cutting device main body, and the cutting device main body can adsorb the set work by the vacuum pad and automatically take in the work on the cutting table. Then, the cutting device body automatically discharges the cut work on the receiving plate of the discharging stocker by the scraping metal fitting, and the discharging stocker takes the received work from the upper surface of the stock base such as a trolley for stock or already stock base. If there is a workpiece in stock, carry it to a position close to the top surface of the top workpiece and pull out the receiving plate to prevent the product from falling apart from the workpiece and stock base or already stocked. It is possible to gently drop and move onto the machined work and automatically stock it.

Therefore, it is possible to automatically perform all the processes from the supply of the work to the taking out of the product and the work after the cutting and the stocking, and this is continuously and repeatedly performed by automatically controlling the operation timing of each part. Things can be done easily. Therefore, it is possible to completely automate a corrugated board cutting device for mass-producing corrugated board products of the same shape, and its practical effect is extremely large.

[Brief description of drawings]

FIG. 1 is a plan view of a corrugated board cutting device showing a position embodiment of the present invention.

FIG. 2 is a sectional view.

FIG. 3 is an enlarged cross-sectional view showing a main part of a supply stocker.

FIG. 4 is an explanatory view showing a work taking-in state, showing a first operation of the work taking-in device.

FIG. 5 is an explanatory view showing a state of taking in the work, showing a second operation of the work taking-in device.

FIG. 6 is an explanatory diagram showing a state of the cutting device body during a cutting process.

FIG. 7 is an explanatory diagram showing a scratched state of a work.

FIG. 8 is an explanatory diagram showing a state of receiving a work by the discharge stocker.

FIG. 9 is an explanatory view showing a stock state of works.

FIG. 10 is an enlarged cross-sectional view showing a main part of the discharge stocker.

FIG. 11 is an enlarged sectional view of a work receiving plate.

[Explanation of symbols]

A: Cutting device main body B: Supply stocker C: Discharge stocker 1: Supply stocker stock base 2: Supply stocker lifter 4: Cutting table 9: Discharge stocker lifter 51: Suction pump 52: Vacuum pad 61: Scraping metal 85 : Work receiving plate 800: Plate removing means a: Work a ': Top work of supply stocker a ": Top work of discharge stocker

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Taizo Fukagawa 170-3 Munetaka, Gunma-gun Gunma-gun Gunma Prefecture (72) Inventor Norihiko Yamanaka 1390-3 Shimotoyooka-cho, Takasaki-shi Gunma (72) Inventor Takeshi Matsuo Fukuoka Prefecture 2-38-18 Nakao, Minami-ku, Fukuoka City

Claims (1)

[Claims] 1. A supply stocker, a cutting device body, and a discharge stocker that stocks a cutting device body, a stocker stocking a work to be supplied to the cutting device body, and a work stocker that has finished cutting processing in the cutting device body. The stockers are arranged in series in the order of close proximity to each other in the order of stockers, and the supply stocker has a stock base for stocking workpieces and a lifter for raising and lowering this stock base, and the cutting device body has a vacuum that connects to the suction pump. The pad can be moved from the supply stocker to the cutting table of the cutting device body, and can be moved up and down, and the scraping metal fitting that locks the rear end of the work placed on the table can be moved in the front-back direction of the table. Can be raised and lowered Provided on the discharge stocker are a work receiving plate on which the work scraped from the cutting device main body is transferred by the forward movement of the scraping metal fitting locked to the rear end of the work, and a stopper for fixing the position of the work on the work receiving plate. A corrugated board cutting device comprising: a lifter for raising and lowering a work receiving plate; and plate removing means for moving the work receiving plate to remove it from the lower surface of the work.