JPH07116755A - Sheet transporting device - Google Patents

Abstract

PURPOSE:To increase the maximum transportable dimension of the width in the longitudinal direction up to the width which can be received by a sheet working machine in a sheet transporting device of one-sided inlet and one-sided outlet system. CONSTITUTION:A loader equipment 3 to transport a stock sheet W1 and a stock conveyor 4 with an unloader to transport a product sheet W2 are continuously arranged in the longitudinal direction at the side of a sheet working machine 1. The sheet working machine 1 is a turret punch press, etc., provided with a table 5 which is moved in the longitudinal direction. The stock conveyor 4 is provided with an unloader 15 to pull in the product sheet W2 onto the conveyor surface S in the traveling operation, and opens the conveyor surface S to load the product sheet W2. The whole of this stock conveyor 4 is movable in the direction orthogonal to the unloader traveling direction on the rail 27. A conveyor position changing device 31 which is the control means to move the stock conveyor 4 in the orthogonal direction when the unloader 15 is pulled out 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 conveying device for carrying in and out a plate material from one side of a plate material processing machine such as a turret punch press.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, in a processing line of a turret punch press 51 for single-sided single-sided delivery, a loader device 52 for loading a material plate W1 and a stock conveyor 53 with an unloader for carrying out a product plate W2. There is one that is installed side by side. In the figure, the loader device 52
The stock conveyor 53 is provided with the plate materials W1 at the loading position.
The outline of W2 is shown. The stock conveyor 53 is
The product plate material W2 that has been pulled out is dropped and loaded on a truck or the like below it.

The material plate W1 at the loading position is loaded by the loader device 5
In step 2, it is carried into the punch press 51 (arrow X1), and slightly moved forward (Y-axis direction) on the table 54 of the punch press 51 to be positioned (Y1). The punch press 51 is
The plate material is fed by the forward / backward movement of the table 54 and the lateral movement of a work holder (not shown), and processing is performed at the punch position P. When punching is completed, the table 54 is retracted to the origin position (Y coordinate of the punch position P) as shown by the chain line in the figure, and the product plate material W2 is pulled out from that position to the stock conveyor 53 (arrow X2).

[0004]

When the loader device 52 and the stock conveyor 53 are arranged side by side in this way to carry in and carry out the plate material to and from the punch press 51, the loading positions of the material plate material W1 and the product plate material W2 do not interfere with each other. Need to Therefore, the maximum front-rear width of the material plate material W1 is a dimension obtained by subtracting the front-rear movement distance (Y1) at the time of positioning from the front-rear stroke of the table 54. For example, if the table stroke is 1525 mm and the front-back movement distance (Y1) at the time of positioning is 30 mm as shown in the figure,
The maximum front-back width of the material plate W1 is 1495 mm.

For this reason, normally, the loader device 52 is provided with a mark such as the maximum front-rear width, but the punch press 51 can process the material plate material W1 up to the stroke width (1525 mm) of the table 54. The user may mistakenly load the material plate material W1 having a width that is full for the table stroke on the loader device 52. When a material plate W1 having a width exceeding such a maximum dimension is loaded, the material plate W1 is loaded so as to extend rearward from the Y-axis origin (position of Y = 0.00). Therefore, when the punched product sheet material W2 is pulled out onto the stock conveyor 53 and dropped and stacked, the product sheet material W2 interferes with the material sheet material W1 within a range Ba shown by a chain line in the figure. This hinders loading. As described above, the maximum size of the raw material plate W1 is restricted due to the stacking position in the plate material conveying device. However, since the punch press 51 can process the raw material plate material W1 having a width slightly wider than the size, the punch plate 51 can be punched. A plate material conveying device capable of carrying in and out the material plate material W1 having the maximum size that can be processed by the press 51 is desired.

An object of the present invention is to provide a single-sided single-sided plate material conveying device in which a loader device and a stock conveyor with an unloader are arranged in front and rear, and the maximum front and rear width of a material plate material that can be conveyed is received by a plate material processing machine. It is to increase it to the size possible.

[0007]

The structure of the present invention will be described with reference to FIG. 1 corresponding to an embodiment. This plate material conveying device (2) has a loader device (3) and a stock conveyor (4) with an unloader arranged side by side, so that the stock conveyor (4) can be moved in a direction orthogonal to the unloader traveling direction, A conveyor position changing device (31) for moving the conveyor (4) in the orthogonal direction when the unloader (15) is pulled out is provided. The loader device (3) sequentially conveys the stacked raw material plate materials (W1) by a loader (11) that travels. The stock conveyor (4) is for unloading the product plate (W2) to the conveyor surface (S) by the unloader (15) and opening the conveyor surface (S) to load the product plate (W2).

[0008]

This plate material conveying device (2) is a plate material processing machine (1).
It is installed on the side of the table (5) that moves back and forth. The material plate material (W1) loaded at a predetermined position is loaded by the loader (1
In 1), it is carried into the table (5) of the plate material processing machine (1). The loaded plate material (W1) is a plate material processing machine (1).
Is processed into a product plate material (W2). Product board (W
2) is the transfer surface (S) of the stock conveyor (4) by the unloader (15) with the table (5) retracted.
Pull it up. When it is pulled out to the specified position, the transport surface (S)
Open and drop the product plate (W2) to load it. The pull-out running of the unloader (15) is performed while moving the entire stock conveyor (4) in a direction away from the loader device (3) in an appropriate running section. Therefore, product plates (W that fall from the stock conveyor (4)
The loading position of 2) is a position farther from the material loading position of the loader device (3) than the drawing start position on the table (5) of the plate material processing machine (1) in the front-back direction (Y).
Therefore, even if the front-rear width of the material plate material (W1) is such that it interferes with the drawing start position on the table (5) of the plate material processing machine (1), the product material plate (W2) and the material material plate (W1) Loading can be performed without causing the problem of interference with the.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. As shown in the plan view of FIG. 1, a loader device 3 and a stock conveyor 4 with an unloader, which form a plate material conveying device 2, are arranged side by side on the side of the plate material processing machine 1. The plate material processing machine 1 is composed of a turret punch press, and the work holder 6 that holds the plate material on the table 5 is
The carriage 7 is installed so as to be able to move laterally (X direction) on the carriage 7 that moves back and forth (Y direction). The table 5 moves back and forth on the rail 35 together with the carriage 6. Between the loader device 3 and the stock conveyor 4 and the plate material processing machine 1, auxiliary tables 8a to 8c arranged in three rows are installed.

The loader device 3 is a device in which a loader 11 is movably installed on a rail 9 projecting cantileveredly on the table 5 of the plate material processing machine 1. The loader 11 is made of a material plate W1.
Self-propelled device 10 having a plurality of suction pads 12 for adsorbing
(Fig. 3) is installed. The suction pad 12 is the lifting frame 1
3, the elevating frame 13 is suspended by the loader 11 so as to be able to ascend and descend. At a predetermined loading position below the traveling path of the loader 11, a material truck 14 loaded with a material plate W1 is arranged.

As shown in FIG. 1, the stock conveyor 4 has an unloader 15 for drawing out a product plate material W2 from a table 5 of the plate material processing machine 1 and a blind roller table 16 constituting a conveyor surface S. Below the conveyor 4, a product cart 17 (FIG. 3) for loading and collecting the product plate material W2 is arranged. The blind-shaped roller table 16 includes a pair of endless chains 19 having a pair of endless chains 19 and two ends of a rotatable roller 18.
Each of the endless chains 19 is connected to each other to form a blind shape, and is provided in a partial length section of the endless chain 19. The endless chain 19 is mounted on a sprocket 20, and the sprocket 20 is driven by a table drive motor 21 so that the blind roller table 16 forms a conveyor surface S above the product carriage 17 from a position where the conveyor surface S is formed. It is said that it can be opened and closed to the position where it is opened.

The unloader 15 comprises a pair of rails 22, 2 provided on the conveyor frame 4a of the stock conveyor 4.
A plurality of grippers 23 are attached to a gripper attachment frame 24 so that the gripper attachment frame 24 can travel freely. The unloader 15 is connected to an endless chain (not shown), and the chain is rotatably driven by an unloader drive motor 25 to be driven to move left and right.

Conveyor frame 4 of stock conveyor 4
The a has wheels 26 (FIG. 3) at its lower end, and is movably installed on the rails 27 laid in the front-rear direction by the wheels 26. The forward and backward movement is performed by a frame drive motor 28 provided on the conveyor frame 4a.

The loader device 3, the stock conveyor 4, the material carriage 14, the product carriage 17 and the like are controlled by the conveyance control device 29 shown in FIG. 1, and the plate material processing machine 1 is controlled by the numerical control device 30. A conveyor position changing device 31 having the following functions is configured as a part of the transfer control device 29. The conveyor position changing device 31 is a direction orthogonal to the pulling direction X when the unloader 15 pulls out the entire stock conveyor 4 based on the width dimension and the pulling position data of the product plate W2 obtained from the machining program of the numerical control device 30. It is a control means for moving backward to Y.

Of the three rows of auxiliary tables 8a to 8c arranged between the plate material processing machine 1 and the plate material conveying device 2, one row of the auxiliary table 8a closer to the plate material processing machine 1 is as shown in FIG. It can be tilted up and down around the support shaft 36, and is tilted up and down by a cylinder 32 provided below the auxiliary table 8b. Further, of the rails 22 for traveling the gripper of the stock conveyor 4, the front end portion 22a of the front rail 22 corresponding to the width dimension of the auxiliary table 8a has a support shaft 3
It is openable / closable to the outside around 7 and is opened / closed by a cylinder 33 provided on the rail base side. It should be noted that the rail 22 is provided with a detector such as a limit switch for detecting that the tip portion 22a has returned to the normal position, and an interlock means (not shown) for preventing the unloader 15 from moving when the detector is off. ) Is the transfer control device 29 of FIG.
It is provided in.

The operation of the above configuration will be described. Material truck 14
The material plate material W1 loaded on the top is adsorbed by the adsorption pad 12 of the loader 11 and lifted, and the traveling of the loader 11 causes the table 5 of the plate material processing machine 1 as shown in FIG.
It is loaded on top. The material plate W1 that has been loaded is the loader 1
By the positioning mechanism provided in FIG. 1, the carriage 7 is slightly moved to the side of the carriage 7 as indicated by the arrow a, and is pressed against the end locator 38 and the work holder 6 which project and retract at the end of the table 5, and X and Y are set. Is positioned in the direction. In this positioning state, the work holder 6 holds the material plate W1. As shown in FIG. 4 (B), the grasped material plate W1 is sent to a punch position P at an arbitrary position by the forward / backward movement of the carriage 7 and the horizontal movement of the work holder 6, and punched.

The product plate material W2 which has been punched from the material plate material W1 is carried out as follows. That is, FIG. 5 (A)
As shown in FIG. 5, the table 5 is retracted to the Y-axis origin position which is the stroke end, and the unloader 15 is moved as shown in FIG.
The gripper 23 holds and pulls it out onto the stock conveyor 4. Prior to being gripped by the unloader gripper 23, the stock conveyor 4 is moved from the normal standby position shown by the chain line in FIG. At this standby position, the rails 22 and the like of the stock conveyor 4 overlap the material truck 14 of the loader device 3, but since the rail 22 is at a position sufficiently higher than the material truck 14 as shown in FIG. It does not interfere with the upper material plate W1.

In this way, with the whole stock conveyor 4 approaching the loader device 3 side, the unloader 15 starts to be pulled out. During this running process,
As shown in FIG. 6A, when the product sheet material W2 is pulled out from the frame central portion 1a of the sheet material processing machine 1 to a point off in the X-axis direction, as shown in FIG. The returning operation of the conveyor 4 toward the normal standby position is started. As a result, the unloader 15 and the product plate material W2 move diagonally as indicated by arrow A. Even after the stock conveyor 4 has returned to the normal standby position and stopped, the product plate material W2 is continuously pulled out by the traveling of the unloader 15, and the unloader 1 is pulled out to the product loading position shown by the chain line in FIG.
5 stops.

Then, the blind roller table 16 is driven to open the conveyor surface S which is closed on the product carriage 17, and the gripping of the product plate material W2 by the gripper 23 is released. As a result, the product plate material W2 drops and is loaded and collected on the product carriage 17.

According to this plate material conveying device, since the unloader 15 is pulled out while the entire stock conveyor 4 is moved in the direction away from the loader device 3 as described above, the loading position of the product plate material W2 falling from the stock conveyor 4 is carried out. Is a position farther from the material loading position of the loader device 3 than the drawing start position on the table 5 of the plate material processing machine 1 in the front-back direction Y. Therefore, the material plate W1
Even if the front-rear width of the product interferes with the drawing start position on the table 5 of the plate processing machine 1, the product plate W2
Loading can be performed without causing a problem of interference between the sheet material W1 and the material plate material W1. For example, in the case of the dimensional relationship of the table stroke, the plate material width, and the moving distance at the time of positioning as described in the conventional example of FIG.

When the product plate material W2 has a small front-back width, the product plate material W2 may be carried out by the unloader 15 without stopping the entire stock conveyor 4 while being stopped at the normal standby position. , For easy control,
The entire stock conveyor 4 may be moved as described above regardless of the front-back width of the product plate W2.

When an operator wants to pass between the plate material processing machine 1 and the plate material conveying device 2 for maintenance or the like, the cylinder 32 is driven as shown by a chain line in FIG. The passage 34 can be secured by tilting the auxiliary table 8a on the side and driving the cylinder 33 to open the rail tip 22a of the stock conveyor 4 as shown in FIG. You can

[0023]

According to the plate material conveying apparatus of the present invention, the stock conveyor is movable in the direction orthogonal to the traveling direction of the unloader, and the conveyor position changing device for moving the stock conveyor in the orthogonal direction when the unloader is traveling is provided. Therefore, even though it is a one-sided one-side-out type plate material conveying device in which a loader device and a stock conveyor with an unloader are installed side by side, it is possible to cope with the front-back movement distance for positioning the plate material on the plate material processing machine, The maximum size of the plate material can be increased.

[Brief description of drawings]

FIG. 1 is a plan view of a plate material processing line including a plate material conveying device according to an embodiment of the present invention.

FIG. 2 is a cutaway front view of a stock conveyor in the plate material conveying device.

FIG. 3 is a side view of the plate material conveying device.

FIG. 4 is an explanatory diagram showing a material plate loading operation of the plate material conveying device.

FIG. 5 is an explanatory diagram showing a pre-process of a product plate material unloading operation of the plate material conveying device.

FIG. 6 is an explanatory diagram showing a post-process of a product plate material unloading operation of the plate material conveying device.

FIG. 7 is an explanatory diagram showing a passage opening operation of the plate material conveying device.

FIG. 8 is a schematic plan view showing a problem of the conventional example.

[Explanation of symbols]

1 ... Plate material processing machine, 2 ... Plate material conveying device, 3 ... Loader device,
4 ... stock conveyor, 5 ... table, 11 ... loader,
15 ... Unloader, 31 ... Conveyor position changing device, S ...
Conveyor surface, W1 ... Material plate, W2 ... Product plate

Claims (1)

[Claims] 1. A loader device that sequentially conveys loaded material plates by a loader that travels, and a stock conveyor with an unloader that pulls the product plates to a conveyor surface by an unloader that travels and drops and stacks when the conveyor surface is open. The stock conveyor is provided with a conveyor position changing device that is movable in a direction orthogonal to the traveling direction of the unloader and that moves the stock conveyor in the orthogonal direction when the unloader is traveling.