JP3305810B2 - Piling equipment for plate materials - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a piler for transporting a sheet material such as a stainless steel sheet and stacking it one by one.

[0002]

2. Description of the Related Art Conventionally, a piler has been used which transports a plate-shaped product such as a stainless steel plate cut to a predetermined size and sequentially stacks these products. As described in Japanese Patent Publication No. 50-5467, for example, this piler adsorbs and transports a plate-like material, releases the suction when it reaches a predetermined piler position, and moves the plate-like material into the piler. It is equipped with a vacuum conveyer that is dropped into

FIG. 6 shows an outline of a facility provided with a vacuum conveyor for transporting a plate-like material to two skids.

A plate-like material 50 such as a stainless steel plate cut by a shear is conveyed to a vacuum conveyor side by a conveyor belt 51, and is suction-conveyed downstream by a vacuum conveyor 52. The vacuum conveyor 52 is provided with an endless belt 53 in which a large number of holes are distributed and an air supply / discharge chamber 54 capable of supplying and discharging air. Then, the plate-like material 50 is adsorbed to the belt 53 and conveyed by the movement of the belt 53 and the air suction by the air supply / discharge chamber 54, and when it reaches a predetermined position, the plate-like material 50 is dropped by switching from air suction to discharge. Let it be piled.

The length of the transport line of the vacuum conveyor 52 is designed to correspond to the length of the plate material 50 to be processed. For this reason, the equipment for transporting the long plate-shaped material 50 to one skid is used.
The transport speed of 3 is controlled in consideration of the inertia due to the weight of the plate-shaped material 50, and is controlled so as not to hit the skid.

On the other hand, when the short plate material 50 is to be processed by a common facility, a plurality of skids are arranged below the vacuum conveyor 52, and the plate material 50 is evenly distributed to these skids.
Can be paid out and transported, and FIG.
An example in which two skids 55 and a second skid 56 are arranged is shown.

The plate 50 is conveyed to the first and second skids 55 and 56 by a common belt 53. When the plate-like material 50 is loaded into the skids 55 and 56, control is performed to reduce the traveling speed of the belt 53 in order to eliminate the collision with the skids 55 and 56 and the occurrence of surface flaws.

[0008]

To increase the efficiency of the piling operation, one effective method is to increase the running speed of the belt 53 to shorten the time required for the plate-like material 50 to reach each skid. .

However, as described above, it is necessary to reduce the speed when the plate-shaped material 50 is charged into the first and second skids 55 and 56. For this reason, the second
When the plate-like material 50 is piled on the skid 56, the belt 53 is decelerated when the preceding plate-like material 50 is in the dropping time. Therefore, the transfer speed of the subsequent plate-like material 50 is also reduced, and the time to reach the second skid 56 is increased.

In addition, the second plate 56 is used to move
When 0 is dropped, when a new plate-shaped material 50 is transferred from the conveyor belt 51 to the belt 53 side,
The traveling speeds of the transport belt 51 and the belt 53 must be set to the same. That is, a pass at an equal speed is necessary so that the speed is not discontinuous when the belt is transferred from the conveyor belt 51 to the belt 53.

In such a situation, the belt 53 is always operated at the same speed as the traveling speed of the conveyor belt 51. However, if the belt 53 is made to correspond to the reduced speed at the time of dropping to the first skid 56, There will be limitations on improving processing efficiency.

As described above, in the conventional structure, when a plurality of skids are provided, there is a problem that the time required for the piling operation cannot be reduced.

It is an object of the present invention to provide a piling apparatus capable of efficiently processing from receiving a plate-like material from a supply side to discharging to a plurality of destinations.

[0014]

SUMMARY OF THE INVENTION The present invention is directed to a piling apparatus which is provided with a belt having a large number of holes so as to be able to travel, and which can suck and release a sheet material by supplying and discharging air through the holes. There is provided a belt capable of independently controlling the running corresponding to the supply and drop position of the plate-like material, and each of these belts includes a supply / discharge unit for supplying / exhausting air to / from the hole , Independent running control
Air can be supplied to and exhausted from the running surface between the belts
An air supply / discharge head is provided.

[0015]

[0016]

By providing a belt and a supply / discharge unit for suction and suction release corresponding to each of the supply destinations of the plate-like material, when the plate-like material is attracted to the belt corresponding to the supply destination, only this belt is used. Can be decelerated. For this reason, if the belt corresponding to the supply destination is received at the same speed as that of the upstream transport system to receive the plate-like material and the belt is decelerated when the edge of the plate-like material is cut off from the transport system, the transport speed can be reduced. The drop supply of the plate material is performed promptly regardless of the speed of the system.

[0017]

FIG. 1 is a front view showing an outline of a piling apparatus according to the present invention.

In the figure, a conveyor 61 is provided in tandem with a shear 60, and the piling device 1 is arranged downstream of the conveyor 61.

The piling device 1 includes a first station 2
And a second station 3 are arranged, each having a lifter-equipped skid 2 for receiving a supplied plate-like material.
a, 3a.

The first station 2 is provided with a supply / discharge unit 5 for supplying and discharging air, which is arranged so that the belt 4 driven by the driving motor 4a faces the path surface of the belt 4. And the second station 3
Also includes a belt 6 driven by a drive motor 6a and a supply / discharge unit 7.

The belts 4 and 6 are, as described in the prior art,
A large number of holes are dispersed and opened, and the plate-like material can be sucked and conveyed by suction of air by the supply / discharge units 5, 7, and when the plate-like material comes to the corresponding skids 2a, 3a. The plate material can be dropped and supplied by releasing air.

The supply / discharge units 5 and 7 are independently connected to a vacuum pump and a compressor (neither is shown), and are capable of supplying and discharging air by a shutter mechanism incorporated therein. For example, the structure described in JP-A-63-267654 can be used as it is. An air supply / discharge head 8 is provided between the first and second stations 2 and 3 in order to compensate for interruption of the suction of the plate-like material by the supply / discharge units 5 and 7.

FIGS. 2 and 3 are schematic longitudinal sectional views showing the internal structure of the air supply / discharge head 8 and the supply / discharge units 5 and 7 on both sides thereof.

The inside of each of the supply / discharge units 5 and 7 of the first and second stations 2 and 3 includes a plurality of cells 5a and 7a.
And shutters 5b and 7b for opening and closing the cells 5a and 7a. These shutters 5b, 7b
Are connected to independent drive systems. In the supply / discharge unit 5, the shutter 5b is simultaneously opened / closed in conjunction with the other supply / discharge unit 7, and the shutter 7b is also opened / closed in conjunction with the other supply / discharge unit 7 in the same manner.

The air supply / discharge head 8 is connected to an independent compressor and vacuum pump, or is connected to these devices on the second station 3 side. Then, a connection pipe 8a from the compressor is provided in a branched manner.
A flapper valve 8b is incorporated at this branch point, and a roller 8c is rotatably provided at the lower end. The flapper valve 8b operates so as to open the flow path of the exhaust air when compressed air is supplied from the connection pipe 8a, and to close the flow path on the connection pipe 8a side when the vacuum pump is operated.

FIG. 2 shows a state in which air is simultaneously sucked from the supply and discharge units 5 and 7 by the vacuum pump. The shutters 5b and 7b are opened upward, the flapper valve 8b of the air supply and discharge head 8 is closed, and the suction side is closed. The flow path is open. By this air suction, the plate-shaped material M is attracted to the belts 4 and 6 as shown in the drawing, and is also attracted to the air supply / discharge head 8 in the same manner.

FIG. 3 shows a state in which air is supplied by a compressor. At the same time as the shutters 5b and 7b are closed, the flapper valve 8b opens the flow path on the connection pipe 8a side. In addition, each cell 5a, 7a has the same
An auxiliary shutter (not shown) whose operation is opposite to that of the shutters 5b and 7b is provided, and air from the compressor can be supplied to each cell 5a and 7a.

By such an operation, air is ejected from the holes of the belts 4 and 6 and the air supply / discharge head 8, and the adsorbed plate material M is separated and falls.

FIG. 4 shows the skid 2a of the first station 2.
FIG. 6 is a diagram showing the speed settings of the transport compressor 61 and the belts 4 and 6 when the plate material M is supplied to the sheet feeding device.

Assuming that the traveling speed of the conveyor 61 is V, in order to transfer the plate material M from the conveyor 61 to the belt 4, the speed of the belt 4 is set to V equal to that of the conveyor belt 61. Figure (a). Then, the plate-like member M is after moving the belt 4 side to decelerate the running speed of the belt 4 to V ₁ as shown in FIG avoid clash of the plate-like member M to skid 2a (b). The size of the travel speed V ₁ was, may be properly set so that no scratch the plate material M.

During the transfer period by the belt 4, the plate material M is adsorbed on the belt 4 as shown in FIG.
Is switched to the exhaust state as shown in FIG. As a result, the plate material M is
And fall into the skid 2a as shown in FIG. 4 (b).

The belt 4 runs at V ₁ until this supply is completed, and then the belt 4 is prepared for the supply of a new plate material M.
Is returned to V (FIG. 4 (c)). As a result, the subsequent plate material M from the conveyor 61 is transferred to the belt 4 as in the case of FIG.

The operation of the belt 4 of the second station 3 may be stopped, or the belt 4 may be run at the same speed V as the conveyor 61 to be on standby.

FIG. 5 shows the skid 3a of the second station 3.
FIG. 7 is a diagram for explaining the speed setting of the conveyor 61 and the belts 4 and 6 when the sheet material M is supplied to the sheet conveyor.

In the initial state, the belts 4 and 6 are made to match the traveling speed V of the conveyor 61, and this speed relationship is maintained until the transition of the sheet material M fed from the conveyor 61 to the belt 6 from the belt 4. (FIG. 7A).

When the trailing end of the preceding plate-like material M separates from the belt 4 on the first station 2 side and is attracted by the belt 6 on the second station 3, the belt 6 travels in preparation for discharge to the skid 3a. to slow down the speed up to V _1. Then, as in the previous example, the suction by the air is released in this decelerated state, and the plate material M is dropped onto the skid 3a (FIG. 3C).

After the release of the preceding plate material M, the subsequent plate material M approaches the belt 6 side. On the other hand, the belt 4 is switched to the air suction side immediately after the discharge of the preceding plate material M, and the running speed is returned to the original V at the same time. Therefore, the belt 4 receives the plate material M supplied at a speed V from the conveyor 61 and conveys the plate material M at the speed V until the rear end of the plate material M is separated from the belt 4. Then, supplies the plate-like member M skid 3a to release the subsequently similarly adsorbed by the air in the preceding example with decelerated to the speed V _1.

The skid 2 to be supplied in this manner
When the plate material M is stretched between the belts 4 and 6 corresponding to a and 3a and the upstream conveying system, the plate material M is quickly received in accordance with the traveling speed on the upstream side. Then, when the plate-shaped material M is no longer connected to the upstream conveying system, the belts 4 and 6 are decelerated and the suction is released, so that the supply to the corresponding skids 2a and 3a is possible.

Therefore, only the belt corresponding to the skid to be supplied is decelerated, and the plate material M can be transferred at high speed from the conveyor 61 to just before the target position, thereby improving the processing efficiency. Become.

[0040]

According to the present invention, the running of the belts is controlled independently in accordance with the supply destination, so that the belt is decelerated when the plate material is transferred from the upstream conveying system to the supply destination belt. Operation becomes possible. For this reason, if the belt speed is set to this speed when the plate material is received with respect to the speed of the transport system, and the belt speed is reduced in preparation for the suction release, the transport speed of the plate material in the transport system decreases. Nothing. Therefore, even in a facility having a plurality of supply destinations, the plate-shaped material can be reduced and dropped into each supply destination irrespective of the speed of the transport system, so that processing efficiency is improved and handling without generating flaws is achieved. It becomes possible.

[Brief description of the drawings]

FIG. 1 is a front view showing an outline of a plate-like material piling apparatus of the present invention.

FIG. 2 is a schematic cross-sectional view showing an internal structure of first and second stations with an air supply / discharge head interposed therebetween, showing air suction.

FIG. 3 is a schematic longitudinal sectional view when switching is performed at the time of air release in FIG. 2;

FIG. 4 is a diagram showing the speed setting of a conveyor and a belt when a plate material is supplied to a skid of a first station.

FIG. 5 is a diagram illustrating speed settings of a conveyor and a belt when a plate material is supplied to a skid of a second station.

FIG. 6 is a schematic view of a conventional example of a piler that supplies a plate-like material to two skids by one belt.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piling apparatus 2 1st station 2a skid 3 2nd station 3a skid 4 Belt 5 Supply / discharge unit 6 Belt 7 Supply / discharge unit 8 Air supply / discharge head 61 Transport conveyor M Plate material

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hisao Naohara 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Prefecture Inside the Chiba Works, Chiba (72) Inventor Hiroshi Saito 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Chiba Works, Ltd. (56) References JP-A-49-103367 (JP, A) JP-A-56-141259 (JP, A) Jpn. Sho 57-81250 (JP, U) (58) Fields investigated Int.Cl. ⁷ , DB name) B65H 29/32

Claims (1)

(57) [Claims] 1. A piling apparatus comprising a belt having a large number of holes formed therein, the belt capable of running, and the suction and release of a plate-like material by supplying and discharging air through the hole. A belt capable of independently controlling the travel corresponding to the supply drop position is provided, and each of these belts is provided with a supply / discharge unit for supplying / discharging air to / from the hole, and the travel is independently controllable. Running between belts
A piling device for a plate-like material comprising an air supply / discharge head capable of supplying / discharging air to / from a row surface .