JPH0741196A - Plate feeding device - Google Patents

Abstract

PURPOSE:To provide a plate feeding device which is constituted to perform the feed of a plate without sucking the plate and the stable feed of the plate without being influenced by the depth and the shape of the uneven surface pattern of a plate surface, reduce an equipment cost, and save energy. CONSTITUTION:A plate feeding device comprises an elevating table lifter l for loading a plate; a pallet conveyor 5 to feed plates to the table lifter 1; and a conveyor 2 for outputting a plate arranged in front of the table lifter 1. The front end part of a guide plate 15 is supported to the tip part of an arm 14, connected to the rod 13 of an air cylinder 10, by means of a pin 16 in a lateral direction. A hook claw 17 for a plate is protruded downward from the rear end part of the guide plate 15 and a plate feeding device 3 to feed forward a plate on a topmost layer on the table lifter 1 by hooking the plate by means of the hook claw 17 during reciprocation of the air cylinder 10 is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate material supplying device for separating and stacking stacked plate materials one by one.

[0002]

2. Description of the Related Art The coating of plate materials and the supply of plate materials to a processing machine in a cutting processing line are accompanied by the work of separating a predetermined number of plate materials stacked on a pallet and feeding them to a conveyor.
Conventionally, as a device for performing this work, for example, JP-A-3-2
A suction and loading device such as a suction pad shown in No. 38244 is generally known. However, in the above case, since the surface of the plate material is sucked with the suction pad, if the plate material has a deep uneven pattern on the surface, or the packing pattern on the pallet is tilted due to uneven thickness of the plate material, a suction error will occur. Often occurs, which leads to damage of the plate material, and also requires a large amount of electric energy such as a drive motor for operating the suction blower and forming a large amount of compressed air for power on the equipment. Was also increasing.

[0003]

Therefore, according to the present invention, a plate material can be supplied without adsorbing it, so that the plate material can be stably supplied without being restricted by the depth and shape of the uneven pattern on the surface of the plate material, and the equipment cost is low. SUMMARY OF THE INVENTION It is an object of the present invention to provide a plate material supply device that contributes to energy saving and thereby solve the above-mentioned problems of the prior art.

[0004]

That is, the first invention of the present application is to raise and lower a table material loading table lifter and a pallet conveyor for supplying a plate material to the table lifter.
And a plate material unloading conveyor in front of the table lifter, the front end of the guide plate is laterally pinned to the tip of the arm connected to the rod of the air cylinder. A hook for the plate material is projected below the rear end of the guide plate, and the uppermost plate material on the table lifter is hooked by the hook when the air cylinder moves forward. SUMMARY OF THE INVENTION A second aspect of the present invention is directed to a plate material supply device characterized by including a material supply device for forward feeding.
2. The plate material feeding device according to claim 1, wherein an air cylinder of the material feeding device is swingably supported by a lateral pin so that a rod of the air cylinder can be vertically swung. A third aspect of the present invention is directed to a third invention in which a plurality of control vanes are juxtaposed above a table lifter so as to be swingable, and when a palette on the table lifter faces the control vanes, The plate material supply device according to claim 1 or 2, further comprising: a pallet detection device for performing a next cycle operation of the plate material supply through the photoelectric sensor by the operation of the control blade. In a fourth aspect of the invention, the pallet collecting device provided on the side of the table lifter is provided with a fork that moves forward at a required rising position of the table lifter to support the pallet on the table lifter. Claim 1 characterized in that Or 3 a sheet material feeding device according is to the subject matter.

[0005]

Embodiments of the present invention will now be described with reference to the drawings. The embodiment shown in FIGS. 1 to 3 is a table lifter.
1 is provided with a carrying-out conveyor-2 and a material-feeding device 3 respectively, and the table lifter-1 is provided with pallet collecting devices 4 and pallet conveyors 5 on the left and right,
A pallet detector 6 is provided above the bull lifter-1. The table lifter 1 is known per se, and supports a horizontal table 7 so that the table 7 can be moved up and down by an elevating device 8. On the table 7, a tabletop type pallet conveyor 9 is provided in the lateral direction. ing. The material feeding device 3 supports a middle portion of a pair of longitudinally arranged air-cylinders 10 in a horizontal direction on a frame 12 by a lateral pin 11, and attaches it to a front end of a rod 13 of the air-cylinder 10. -The arm 14 is connected, and the front end of the guide plate 15 is attached to the tip of the arm 14 in the lateral direction of the pin 1.
6, a hook claw 17 for plate material is projected below the rear end of the guide plate 15, and an arch-shaped guide plate for preventing the guide plate from being reversed is projected on the upper surface of the guide plate 15. The guide plate hanger 18 is straddled over the arm 14 so that the frame 12
The upper end of the rod 20 of the vertical air-cylinder 19 provided in the above is exposed to the lower front part of the air-cylinder 10.

As shown in FIG. 2, the pallet collecting apparatus 4 has wheels 23 of a vehicle body 22 placed on a table 21 and stretched between driving wheels 24 and driven wheels 25 provided at both ends of the table 21. The transmission chain 26 is connected to the vehicle body 22 so that the vehicle body 22 can be moved laterally by driving the drive wheels 24.
The vertical rails 27 are engaged with the vertical and horizontal pulleys 29 provided on the base of a horizontal fork 28 whose tip is directed toward the table lifter-1 side in a pinching manner, and are provided on the vehicle body 22. Fork 2 is attached to a chain 33 stretched between a sprocket 31 connected to the motor 30 and a sprocket 32 provided on the vehicle body 22.
The fork 28 can be moved up and down by connecting the bases of 8 to each other by the operation of the motor 30, and is equipped with a pallet roller type recovery conveyor 34 adjacent to the table lifter 1.

The pallet conveyor 5 is known per se and is located to the right of the pallet conveyor 9 of the table lifter in the lowered position. The carry-out conveyor-2 is also known per se, and is provided with a pair of upper and lower pinch rolls 35 and a roller conveyor 36. The pallet detecting device 6 has a supporting member 40 provided at the lower end of a rod 39 which is inserted through the tip of a bracket 37 and fixed by a bolt 38, and is arranged in parallel with a lateral pin 41 provided at the supporting member 40 at an appropriate interval. A large number of control blades 42 are supported, and a pair of photoelectric sensors 43 are provided on both sides of the support member 40. In FIG. 1, 44 is a table position detecting limit switch provided at a required high position, and 45 is an operating plate for operating the limit switch 44, which is attached to the rear side of the table 7. is there. Reference numeral 46 denotes a pair of photoelectric sensors for detecting plate materials, which are provided at a required high position on the outer side of the table above the table lifter 1 and 47 is a plate material discharge confirmation limit switch provided on the carry-out conveyor-2.

The operation of the apparatus of this example thus configured will be described below. When a pallet P having an appropriate number of plate materials B to B placed in two horizontal rows is moved onto the table lifter-1 by driving the pallet conveyors 5 and 9, the pallet conveyors 5 and 9 are moved by the limit switch operation not shown. When stopped, the table lifter-1 is driven upward, and when the upper surfaces of the plate materials B to B on the table lifter reach a predetermined level, the plate material B rotates the control blade 42 to the pin 41 fulcrum and the photoelectric sensor. -43 is actuated, which causes vertical air-cylinder-
19 operates to lower the rod 20, lower the arm 14 by its own weight around the pin 11 as a fulcrum, and bring the guide plate 15 into contact with the upper surface of the plate B. Further, when the plate material B reaches the maximum level, the photoelectric sensor 46 is actuated to stop the ascending drive of the table lifter-1 and the air cylinder-
10, the rod 13 and the arm 14 are moved forward, and the hook claw 17 of the guide plate is used to move the uppermost plate material B of the plate material.
And send it forward. The sent plate material B enters between the pinch rolls 35 and 35 and is sent to the next process on the conveyor-2.

When the plate B is delivered, the photoelectric sensor
The table lifter 1 is driven upward by the switching operation of 46 and the air cylinder 10 is returned to the arm 1 to move the arm 1.
4. Retract the guide plate 15. When the upper surface of the plate material B on the table lifter reaches a predetermined level, the photoelectric sensor 46 is operated to move the air cylinder 10 forward, and the uppermost plate material B is sent out in the same manner as described above.
The table of the table lifter is repeated by repeating this feeding operation.
When the bull 7 goes up and rises until the plate material B on the pallet is reduced to, for example, about 10 sheets, the operating plate 45 actuates the limit switch 44, thereby driving the drive wheels 24 of the pallet collecting device 4. Then, the vehicle body 22 is moved forward, the fork 28 is inserted into the gap of the tabletop type pallet conveyor 9 to support the pallet P, and thereafter, the table lifter.
Instead of 1, the fork 28 moves up each time the motor 30 is operated by the operation of the photoelectric sensor 46 to continue feeding the material, while the table lifter 1 descends.

After feeding the plate material B on the pallet P,
A part of the control blade 42, which has been in contact with the plate material B until now, is rotated in the gap between the support plates 48, 48 on the upper surface of the pallet P by its own weight about the pin 41 as a fulcrum to operate the photoelectric sensor-43. , The air-cylinder-19 operates to move the rod 20 upward to push up the front end of the air-cylinder-10, and the fork 28 retreats by driving the drive wheels 24 while holding the empty pallet P, After confirming this retreat, motor-3
By the 0 operation, the fork 28 is lowered into the clearance of the recovery conveyor 34 and the empty pallet P is placed on the recovery conveyor 34. When the collection conveyor 34 confirms the collection of the empty pallet P, the fork 28 rises to a required position and stands by. On the other hand, when the table lifter 1 has finished descending, the pallet P loaded with the next plate materials B to B is moved onto the table lifter 1 by the drive of the pallet conveyors 5 and 9, and the fork 28 of the fork 28 is moved. After confirming the retreat, the table lifter 1 rises to the initial state of the description, and the above-mentioned material feeding operation is repeated.

The cycle operation in the above example is carried out by a sequence control by an electric control device to which the photoelectric sensor 46 shown in the figure and a limit switch provided in an appropriate place (not shown) are connected.

In another example shown in FIG. 4, instead of the air cylinder 19 in the previous example, a wire 52 with a buffer spring 51 is used to replace the rear portion of the air cylinder 10 and the table 7 of the table lifter 1. And when the table 7 is below a predetermined level, the rear part of the air-cylinder 10 is pulled downward by the wire 52 with a spring and the front part is swung upward. Is the same as the previous example.

[0013]

As described above, in the present invention, unlike the plate material suction method, the plate material is sent by hooking the plate material with the hooking claw of the guide plate during the forward movement of the air cylinder of the material feeding device. Therefore, the plate material can be stably supplied without being restricted by the depth and shape of the uneven pattern on the surface of the plate material, the equipment cost is low, and the energy saving can be contributed. Further, in the invention according to claim 2, the air-cylinder-
The guide plate at the tip of the arm that is connected to the rod can be placed along the upper surface of the plate material, so that the plate material can be reliably delivered by the hooking claws of the guide plate and the guide plate can be collected when the pallet is collected. Can be swung upward to easily avoid interference with the pallet. According to the third aspect of the invention, the completion of feeding the plate material on the table lifter can be easily detected and the next operation can be performed. Further, in the invention of claim 4, since the fork of the pallet collecting device supports the plate material on which the remaining amount of the pallet on the table lifter is reduced by the table lifter as a shoulder,
During feeding, the table lifter can shift to the loading operation of the next plate material, and the plate material can be efficiently supplied.

[Brief description of drawings]

FIG. 1 is a perspective view of a portion of one embodiment of the present invention.

FIG. 2 is a rear view of a portion of the above example.

FIG. 3 is an enlarged perspective view of a guide plate portion of the material feeding device of the above example.

FIG. 4 is a right side view of a portion of another example of the present invention.

[Explanation of symbols]

 1 Table Lifter 2 Conveyor 3 Feeding Device 5 Pallet Conveyor 10 Air-Cylinder 13 Rod 14 Arm 15 Guide Plate 16 Pin 17 Claw

Claims (4)

[Claims] 1. A table lifter for loading and unloading plate materials.
And a pallet conveyor for supplying a plate material to the table lifter, and a plate material unloading conveyor in front of the table lifter, the tip of an arm connected to a rod of an air cylinder. The front end of the guide plate is supported by a lateral pin on the above portion, and a hook for the plate material is provided projecting below the rear end of the guide plate, and the hook is used when the air-cylinder is moved forward. 2. A plate material feeding device comprising: a material feeding device that hooks the uppermost plate material on the table lifter and feeds it in advance. 2. The air cylinder of the material feeding device is swingably supported by a lateral pin so that a rod of the air cylinder can be vertically swung. Plate material feeder. 3. A photoelectric sensor is provided by arranging a plurality of control blades in a swingable manner above a table lifter, and when the control blades face a pallet on the table lifter, the control blades actuate. The pallet detection device for performing the next cycle operation of the plate material supply via the pallet is provided.
Alternatively, the plate material supply device according to item 2. 4. A pallet collection device provided on the side of the table lifter is provided with a fork for moving forward at a required rising position of the table lifter to support a pallet on the table lifter. The plate material supply device according to claim 1, 2, or 3.