JPH0367929B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention relates to a laminated board delivery device that lifts stacked board materials one by one and sends them out to a cleaning device, a press device, etc. on the side. Regarding.

(Prior art) For example, when pressing steel plate materials in an automobile production factory, the sheets stacked in a predetermined position are lifted up one by one, and the pressing equipment on the side is used to clean the sheets before pressing. If it is necessary to do so, a device for delivering laminated board materials to a cleaning device is used. Conventionally, this type of device has a suction lifting mechanism made of, for example, a vacuum pad, and a conveyance mechanism such as an endless conveyor equipped with a magnet for holding the plate material on the back side, and the plate material stacked below is stacked in one place. The structure is such that a suction elevating mechanism attracts and lifts the plates one by one, and the lifted plates are conveyed to the side by a conveying mechanism while being held by the magnets.

However, in such a configuration, the only means for holding the plate in the conveyance mechanism was a magnet, so if the plate is made of a non-magnetic material such as aluminum, the plate lifted upward cannot be conveyed. The mechanism could not effectively hold the material, and therefore, the delivery device could not be used for plate materials made of non-magnetic material. Therefore,
In the past, it was necessary to separately provide a device exclusively for handling non-magnetic plates, and in this case there was a problem in that the feeding efficiency of the plates often decreased.

In order to deal with this problem, it is possible to use a conveyor with suction cups in the conveyance mechanism, which has a large number of suction cups that can hold the plate material by the suction force of air, regardless of the material of the plate material. If an attempt is made to modify existing equipment, the construction of the transport mechanism will be extremely complex, resulting in high modification costs and
Even if it could be modified, there is a problem in that the mechanism generates a lot of noise and requires additional soundproofing measures.

(Objective of the Invention) The present invention addresses the above-mentioned actual situation regarding a laminated board delivery device used as a device for feeding boards one by one to a press machine, etc., and improves the existing delivery device. As a result, not only when the laminated plates are made of magnetic materials such as steel plates, but also when the laminated plates are made of non-magnetic materials such as aluminum, the feeding efficiency is reduced by lifting the laminated plates upward one by one. It is an object of the present invention to provide a delivery device with a relatively simple configuration that allows delivery to the side without causing any damage.

(Structure of the Invention) In order to achieve the above object, a laminated plate delivery device according to the present invention is characterized by having the following structure.

In other words, there is a suction elevating mechanism that suctions stacked plates one by one and lifts them upwards, and an endless belt that holds the plates lifted upward by this suction elevating mechanism on the underside of the belt and sends them out to one side. In a configuration having a conveyor, a magnet for holding plate material is arranged on the back side of the belt of the conveyor, and a moving frame having a receiving roller and a rack, respectively, is arranged along the conveyor on the opposite side of the direction in which the plate material is sent out by the conveyor. It is provided so that it can move forward and backward and swing freely. and a pinion that is engaged with a rack in the movable frame and driven by a drive device to move the frame forward and backward, and a pinion that swings the movable frame using the pinion as a fulcrum after the movable frame is advanced by the drive device. and a swinging mechanism for pressing the plate material lifted by the suction mechanism onto the lower surface side of the belt on the conveyor.

According to this configuration, the stacked plates are lifted upward one by one by the suction lifting mechanism, and then held on the underside of the belt of the endless belt conveyor and sent to one side. In that case, when the plate material is made of a magnetic material such as a steel plate,
The plate material is held on the underside of the belt of the conveyor by a magnet placed on the back side of the belt of the conveyor, and is sent out to the side. Also,
When the plate material is made of a non-magnetic material such as aluminum, the moving frame moves forward in the direction of delivery by the conveyor with the plate material lifted as described above, and is positioned below the plate material. After that, the frame is swung by the swiveling mechanism, so that the plate material is pressed against the lower surface of the belt on the conveyor via the receiving roller. Then, by driving the conveyor in this state, the plate material is quickly sent out to the side.

(Effect of the invention) According to the above configuration, not only when the laminated plate material is a magnetic material such as a steel plate, but also when the laminated plate material is a non-magnetic material such as aluminum, the laminated plate material is moved upward one by one. After being lifted up, it can be quickly delivered to the side without reducing the delivery efficiency. In that case, a movable frame that holds the non-magnetic plate material in a crimped state on the belt conveyor is moved forward and backward by a pinion that is easily engaged with the moving frame, and after moving forward, it swings about the pinion as a fulcrum to transfer the plate material to the conveyor belt. Since it is crimped on the lower surface side, it is possible to prevent the plate material from shifting or falling due to interference between the movable frame and the plate material held by the suction lifting mechanism, and the pinion also serves to move the movable frame back and forth as well as to swing it. Therefore, there is an advantage that the drive mechanism for the frame is simply constructed, and the existing delivery device can be used as is by simply adding this mechanism.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in Fig. 1, a laminated plate delivery device 1
has a suction elevating mechanism 3 disposed on the upper part of the main frame 2, and a plurality of endless belt conveyors 4, which are also suspended from the upper part of the main frame 2 and arranged in parallel in the horizontal direction.

The suction elevating mechanism 3 includes an air cylinder 5 which is erected on the upper part of the main frame 2 and has a piston rod 5a fitted therein so as to be able to move forward and backward, and which is hung from the lower end of the piston rod 5a. The pad holding frame 8 has an elevating frame 6 and a pad holding frame 8 which is attached to the frame 6 so as to be movable in the horizontal direction via a lateral guide member 6a and is provided with a large number of vacuum pads 7...7. and the elevating frame 6 are raised and lowered together by the air cylinder 5. Further, as shown in FIG. 2, suction hoses 9...9 are connected to the vacuum pads 7...7, respectively, and the pad holding frame 8, etc. is lowered and the vacuum pads 7...7 are connected to each other as shown by chain lines in FIG. Padded 7...7
When the pad contacts the laminated plate material a...a below, the air inside the pad 7...7 is sucked by a separately provided suction device (not shown), thereby causing the laminated plate material a...a to The uppermost plate material a is configured to be attracted to the pad 7.
The pad holding frame 8 includes an operating member 8a for adjusting the horizontal position of the frame 8, that is, the vacuum pads 7...7 according to the dimensions of the plate material a, and an operating member 8a for adjusting the horizontal position of the vacuum pads 7...7 in accordance with the dimensions of the plate material a. A limit switch 10 for detecting contact is attached to each. Furthermore, guide rods 11, 11 are provided upright on the upper part of the lifting frame 6 to guide the frame 6 in the vertical direction, and the pads 7
A plurality of springs 12 are provided so that the pad holding frame 8 can be slightly displaced in the vertical direction as required.
...12 are provided respectively.

On the other hand, as shown in FIGS. 1 and 2, the endless belt conveyors 4...4 each have a pair of support frames 13, 13 extending in the horizontal direction, and rollers pivotally supported at both ends of the frames 13, 13. 14,
An annular endless belt 15 is wound between the belts 14', and magnets 16 for holding plate materials are arranged on the back side of the belt 15. Here, a sprocket 18 is fixed to one end of the pivot shaft 17 of the drive side roller 14 in both the rollers 14, 14', and a chain 20 is wound between it and a motor 19 separately provided on the main frame 2. equipped. Then, when the plate material a is lifted up to the position of the conveyor 4 by the suction lifting mechanism 3, the drive side roller 14 is moved to the chain 20.
The lower part 15a of the belt 15 moves in the direction A shown in FIG. 1 by being rotationally driven by the motor 19 via the belt 19. In that case, when the plate material a is a magnetic material such as a steel plate, the plate material a is held on the belt lower part 15a by the attraction action of the magnets 16...16, and in this state, the belt 15 is rotated as described above. By being driven, the plate material a is also sent out in the A direction. Incidentally, the support frame 13 is provided with a proximity switch 21 for detecting when the plate material a has reached the position of the conveyor 4. Further, in this embodiment, a cleaning device 22 is separately installed on the negative side of the delivery device 1 in correspondence with the feeding direction of the plate material a, and the cleaning device 22 is separately installed on the − side of the feeding device 1, so that the cleaning device 22 is cleaned by passing between rollers 23 and 23 in the cleaning device 22 and between cleaning brushes 24 and 24.

However, the above-mentioned feeding device 1 has a feeding direction (FIG. 1A) by the endless belt conveyors 4...4.
Moving frames 25...25 are provided on the opposite side of the cleaning device 22, and pinions 26...26 move the moving frames 25...25 forward and backward along the conveyors 4...4.
When the movable frames 25...25 are in the forward position, the frames 25...25 are moved to the pinions 26...26.
A swinging mechanism 27 is provided, which swings using the conveyors 4 as a fulcrum and presses them onto the conveyors 4 . . . 4 . As shown in FIG. 3, each of the movable frames 25...25 has a U-shaped cross section, and a plurality of rollers 28...28 are rotatably disposed on the top thereof, and a rack 29 is fixed to the bottom surface. and the rack 29
is meshed with the pinion 26. Further, each of the pinions 26 . . . 26 is fixed to a rotating shaft 30 installed between the brackets 2 a of the main frame 2 . A chain 33 is wound between a sprocket 31 attached to the rotating shaft 30 and a separately provided motor 32 with a brake, and the rotating shaft 30 is driven by the motor 32 via this chain 33. This causes each pinion 26...26 to rotate, thereby causing each moving frame 25...25 to move forward or backward. Here, in main frame 2,
A plurality of back-up rollers 35...35 are pivotally supported on a shaft 34 installed between the brackets 2b, 2b, and the rollers 35...35 and the pinions 26...
26 and are configured to sandwich the moving frame 25. Further, in this embodiment, the rotating shaft 30 is also provided with auxiliary rollers 35'...35' for holding the moving frame.

The swing mechanism 27 also includes brackets 2c and 2 in the main frame 2, as shown in FIGS.
A support member 3 that is slidable in the vertical direction guided by a pair of guide members 2d, 2d fixed to c.
6, 36, and a plurality of rollers 39...39 and 40 which are respectively attached to two parallel pivot shafts 37, 38 whose both ends are supported by the support members 36, 36, and which sandwich the moving frames 25...25. ...40, and a cylinder 4 in which the upper end of a piston rod 42a is connected to a connecting member 41 integral with the supporting members 36...36.
It is composed of 2. Then, when the moving frames 25...25 are in a predetermined forward position,
With the rear end of each frame 25 being held between the rollers 39 and 40, the cylinder 42 moves the connecting member 41 and the supporting members 36, 36 in the vertical direction via the piston rod 42a. The movable frames 25...25 are swung about the pinions 26...26 as fulcrums, so that the rollers 28...28 in each frame 25...25 are pressed against the conveyors 4...4.

Next, the operation of this embodiment will be explained.

First, with the movable frames 25...25 retracted to predetermined positions, the adsorption lifting mechanism 3 is driven by the air cylinder 5, so that the lifting frame 6 and the pad holding frame 8 are integrally moved to the position shown in FIG. Descend from the raised position shown. When the limit switch 10 comes into contact with the laminated plate material a below it and the lowering end is detected, the downward movement of the adsorption lifting mechanism 3 is stopped, and the vacuum pads 7...7 in the mechanism 3 are stopped. Therefore, only one of the plate materials a, .

In that case, when the plate material a attracted to the pads 7...7 is a plate material made of a magnetic material such as a steel plate, when the plate material a is moved up to the position of the endless belt conveyor 4, it is transferred to the endless belt conveyor 4. 4 is detected by the proximity switch 21, the attraction by the vacuum pads 7...7 is released. At this time, the magnet 1 is placed on the back side of the belt 15.
6...16 are provided, the plate material a is attracted and held on the lower part 15a side of the belt 15 by the attraction action of the magnets 16...16. In this state, the conveyor 4 is driven by the motor 19 and the belt lower part 15a moves in the A direction, so that the plate material a is also sent in the A direction and supplied to the cleaning device 22. Become.

On the other hand, when the laminated plate material a is a plate material made of a non-magnetic material such as aluminum, even if the plate material a approaches the conveyor 4 as described above, the attraction force by the magnets 16...16 does not act. In that case, the movable frames 25...25 move forward to a position below the plate material a, and then move the plate material a to the lower part 15 of the belt 15.
Crimp on a. That is, the plate material a is the belt lower part 15.
When approaching the pinion a, the motor 32 moves the pinion 2
6...26 are rotationally driven, and as a result, the movable frames 25...25 move from the retracted position shown in FIG. 1 to the conveyor 4.
. . 4, and moves to below the conveyors 4 . In this state, the rear end portions 25a...25 of each moving frame 25...25 are held between the rollers 39...39 and 40...40.
a is pushed down by the swing mechanism 27 in the direction B shown in FIG. 5, so that the pinions 26...
The frame front end 25b...25 with 26 as a fulcrum
b is swung in the C direction, and as a result, the plate material a is moved by the receiving rollers 28... in the frames 25...25.
28 to the lower part 15a of the belt, and furthermore, in this state, the conveyors 4...4
is driven as described above. Therefore,
The plate material a is conveyed in the direction A by the belt 15 while being pressed against the belt lower portion 15a, and is supplied to the cleaning device 22.

Furthermore, after the plate material a has been sent out in this manner, the movable frames 25...25 are returned to their initial retreated positions, and the same operations are repeated successively.
This allows the laminated plates a...a to be lifted upward one by one, not only when the laminated plates a...a are made of a magnetic material such as a steel plate, but also when they are made of a non-magnetic material such as aluminum. It will quickly be sent to the side.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall front view showing the configuration of a delivery device according to the embodiment, and FIGS. 2, 3, and 4 are lines shown in FIG. Enlarged vertical cross-sectional view cut along the lines, No. 5
The figure is an overall front view similar to FIG. 1 showing a state in which the movable frame is in the forward position. DESCRIPTION OF SYMBOLS 1... Delivery device, 3... Adsorption lifting mechanism, 4... Endless belt conveyor, 15... Belt, 16... Magnet, 25... Moving frame, 26... Pinion, 27
...Swinging mechanism, 28...Receiving roller, 29...Rack,
32... Drive device (motor with brake), a... Plate material.

Claims (1)

[Claims] 1 A suction lift mechanism that picks up stacked plates one by one and lifts them upward, and an endless belt conveyor that holds the plates lifted upward by this suction lift mechanism on the underside of the belt and sends them to one side. The conveyor is equipped with a magnet for holding the plate material on the back side of the belt of the conveyor, and a receiving roller and a rack are respectively arranged on the opposite side of the direction in which the conveyor conveys the plate material. a moving frame that is provided to be movable forward and backward and swingable along the conveyor; a pinion that is engaged with a rank in the moving frame and driven by a drive device to move the frame forward and backward; and a swinging mechanism that swings the moving frame using the pinion as a fulcrum after the moving frame moves forward by the drive device, and press-bonds the plate material lifted by the suction mechanism to the lower surface side of the belt on the conveyor. A laminated plate delivery device characterized by: