JPH03232639A - Plate feeding system for plate processing line - Google Patents

Abstract

PURPOSE:To perform the high speed and stable feed of a plate by a method wherein a plate containing part to contain a plate and a plate conveying means are provided, and the plate conveying means is movably located on a floor and forms a means to convey the plate to a processing part. CONSTITUTION:A plate feeding system is controlled by the control part of a host computer. When a plate W is put on a lifter table 5, a delivery conveyor 20 is moved over a floor to a plate W receiving position along a guide line 45. In which case, a separating device 10 is moved onto a stock conveyor 1 along a rail 18, and a magnet pad 13 is placed through an opening part formed in the upper surface of a frame 3. The plate W on the table 5 is attracted and held, and after separation of the plats, the plate is conveyed onto a table 31 of a conveyor 20 located in a plate receiving position. In which case, the conveyor 20 is moved on a floor along the guide line 45 and moved to the punch press machine 50 side. The conveyor is accurately stopped in a plate delivery position, and the plate W is conveyed onto a work table 51 of the press machine 50 by means of arms 35a and 35b.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a plate supply system I1, particularly to a plate supply system in a plate processing line for supplying plates from a plate storage section to a processing section.

[Prior Art] A plate processing line including a plate processing machine such as a punch press machine has a stocker (-1) for storing a plurality of plates for processing, and a stocker for supplying the plates from the stocker to the punch press machine etc. It has plate material supply devices such as picking loaders and autoloaders. Further, a rail is installed above along the plate processing line, and this rail is supported by a support. A picking loader, an autoloader, etc. each move on this rail.

When feeding plate material from the stocker to the punch press machine,
First, the picking loader separates the plates one by one from the stocker. Next, the picking loader travels along the rail and carries the separated plate material into the autoloader.Next, the autoloader travels along the rail and carries the plate material into the punch press machine.

[Problem to be solved by the invention]

In the conventional plate supply device, both the picking loader and the autoloader run on rails supported by columns. As a result, when the running speed is increased to increase the processing speed of the line, problems such as the support columns falling down occur. Therefore, there is a limit to the traveling speed of the picking loader and the autoloader, and it is not possible to carry the plate material into the punch press machine at high speed.

An object of the present invention is to provide a plate material supply system that can supply plate materials at high speed and stably.

[Means for Solving the Problems] A plate supply system according to the present invention is a system for supplying plate materials to a processing section of a plate processing line. This system includes a board storage section that stores board materials, and board transport means. The plate material conveyance means is movably provided on the floor surface and is a means for conveying the plate material to the processing section.

[Function] In the plate material supply system according to the present invention, the plate material conveying means
The plate material stored in the plate material storage section is transported to the processing section. When conveying this plate material, the plate material conveying means moves on the floor surface. Therefore, the plate material conveying means can move at a higher speed and more stably than when it is supported by rails and travels.

The dirt allows the plate material to be fed to the processing section at high speed and stably.

〔Example〕

FIGS. 1 and 2 show part of a plate processing line in which an embodiment of the present invention is adopted. Hereinafter, the left-right direction in the figure will be defined as the X-axis direction, and the direction perpendicular to the X-axis in the horizontal plane will be defined as the Y-axis direction.

In Part 1 and Figure 2, the starting end side of the plate processing line (
On the same left side, a stock container 71 is arranged on which plate materials for processing are placed. The stock container 1 has a frame 3 fixed on the floor 2 of the processing yard. Further, the stock converter l has a moving roller device 8 consisting of a large number of moving rollers 4 that can move from the top surface to the side surface of the frame 3 (not shown in FIG. 1). The moving roller device 8 is engaged with a chain (not shown) that can circulate on the top and side surfaces of the frame 3. As this chain runs, the movable roller device 8 moves, and an opening can be created in the upper surface of the frame 3. In addition, the floor surface 2 below the stock container l
A rail 6 is arranged above in the Y-axis direction. On this rail 6, a lifter stand 5 that can be moved up and down is movably provided. A large number of laminated plates W are carried onto this lifter stand 5 by a forklift or the like. Note that a sensor 7 is provided at the top of the frame 3 to detect whether or not the plate material W is placed. This sensor 7 is, for example, a photosensor that includes a light emitting section and a light receiving section.

A plate separation device 10 is disposed on the downstream side (right side) of the stock conveyor I in the plate conveyance direction.

This plate material separation device 10 is for separating and taking out plate materials W to be processed one by one from a plurality of plate materials W placed on a pallet P of a lifter table 5. This plate separation device 10 has a gate-shaped frame 11, and can straddle the stock conveyor 1. A magnet pad 13 that can be raised and lowered is provided on the lower surface of the upper horizontal portion 11a of the frame 11. Also, frame 1
Two pairs of left and right wheels 1 are mounted on the lower horizontal portion (leg portion) 11b of 1.
5 is provided. A driving servo motor (not shown) is attached to the wheel 15. Furthermore, a rail 18 extending in the X-axis direction is provided on the floor surface 2 below this plate material device 10, and the wheels 15 move on this rail 18.

Although not shown, this plate separation device 10 includes:
A separation detector is provided to detect whether or not one plate is separated from the top of the lifter stand 5 by the suction pad 13.

A delivery conveyor 20 is arranged downstream of the plate separation device IO in the plate material conveyance direction. This delivery conveyor 20 includes a conveyor body 21, a table 31 provided on the conveyor body 21, and left and right sides that can rotate within a vertical plane.
It has a pair of robot hands 40.

As shown in FIG. 3, the conveyor main body 21 has a pair of left and right drive wheels 22 and 23 provided approximately in the center in the front and back direction.
and a travel motor 24 for driving drive wheels 22 and 23.
, 25, brakes 26, 27 for decelerating and stopping the driving wheels 22, 23, and pulse generators 28, 29 for detecting the rotation speed of the driving wheels 22, 23. On the other hand, a guideline 45 extending in the X-axis direction is provided on the floor surface 2 below the delivery conveyor 20. As this guideline 45, a conductive metal tape 45a (for example, aluminum tape) is used. For example, as shown in FIG. 4, a guideline 45 is constructed by pasting this metal tape 45a onto the floor surface 2. Furthermore, guideline sensors 30a are provided at both ends of the conhair main body 21 in the front and back direction.

30b is provided. guideline sensor 30a,
30b is a sensor for detecting the position of the guideline 45. Further, the con-hair main body 21 has two pairs of left and right driven wheels 32 that are rotatably supported by the con-hair main body 21. Bumpers 33 are attached to the front and rear ends of the two conhair main bodies.

The robot hand 40 has a pair of left and right arms 35a that can be rotated by a servo motor provided inside the conhair main body 21. An arm 35b is provided at the distal end of each arm 35a and is rotatable around the distal end of the arm 35a. An openable/closable grip portion 36 for gripping the plate material W is attached to the tip of each arm 35b.

Each robot hand 40 is placed on the table 31.
1, which extends in the X-axis direction so as to be rotatable on the
31b is formed. Also, on the table 31,
A plurality of transfer balls 37 are provided to smoothly move the plate material W on the table 31. A sensor 38 for detecting the presence or absence of the plate material W is provided approximately at the center of the rear end of the table 31 . This sensor 38
is composed of, for example, a proximity sensor using magnetic force.

A punch press machine 50 is arranged downstream of the delivery conveyor 20 in the sheet material conveyance direction. punch press machine 5
0 is a processing machine that punches a plate material W, and includes a work table 51 on which the plate material W is placed, and a work holder 52 for holding the plate material W on the work table 51.

Further, a sensor 54 for detecting the presence or absence of a work W is provided on the work table 51.

This sensor 54 is composed of, for example, a proximity sensor using magnetic force.

This plate material supply system includes a control section 6 as shown in FIG.
Controlled by a host computer with 0. The control unit 60 includes a CPU, ROM, RAM, and the like.

The control unit 60 includes a keyboard 61 and a stock conveyor 1.
, a separation device IO1, a delivery conveyor 20, a punch press machine 50, and other input/output parts are connected.

Further, the delivery conveyor 20 has a control section 70 as shown in FIG. In FIG. 6, the control unit 70
It is equipped with a microcomputer consisting of a CPU 71, ROM 72, RAM 2S, I10 board 74, and the like. I10 port 74 has guideline sensor 3.
0 a, 30 b.

Traveling motor drive circuit 75 (driver), brake 26.
27, an arm drive motor 76, a plate gripping section 36, and other input/output sections are connected. Note that the guideline sensors 30a and 30b include receiving coils arranged on both sides of the guideline 45, and a comparison circuit into which the output from each receiving coil is input.

The board supply system described above is controlled by the control unit 60 of the host computer and operates as described below. 7 shows the control flow in the host computer, and FIG. 8 shows the control flow in the delivery conveyor 20. The control flow of the stock conveyor 1 and the separation device 10 is similar to -C, so the description thereof will be omitted here.

In each control, first, in steps Sl and Nl, initial settings such as setting the separation device 10 and the delivery conveyor 20 to initial positions are performed, respectively.

Next, in step S2, the host computer waits for a work start command. If a work start command is input from the keyboard 61, the process moves to step S3. In step S3, it is determined whether or not the end of the work has been commanded from the keyboard. If the end of the work is not instructed, it is determined based on the sensor 7 whether or not there is a plate W on the lifter stand 5 in step S4. If there is a plate material W on the lifter 5, a movement command is given to the transfer conveyor 20 in step S5.

On the other hand, the transfer conveyor 20 is waiting for a movement command in step N2. If a movement command is received from the host computer, the process moves to step N3. Step N3
Now, drive the travel motor 2425 to move to the board receiving position (
10 locations of the separation device).

During this movement, an external oscillator (not shown) is activated to cause an induced current to flow through the guideline 45 via the transmitting coil. Based on the magnetic field generated by this induced current, the guide lines 3 (la, 30b) at the lower part of the transfer conhair 20 detect changes in the magnetic field, and While the transfer conhair 20 is running, the rotation speeds of the travel motors 24 and 25 are changed to correct the positional deviation.In this way, the transfer conhair 20 The delivery conveyor 20 moves to the board receiving position along the guideline 45. When the delivery conveyor 20 reaches the board receiving position, it reports the completion of movement to the host computer. Note that in this case, a guide rail supported by a support is used. The delivery conveyor 20 is on the floor 2.
Since it moves above, the transfer conveyor 20 can move at high speed and stably. Further, by making the end of the guideline 45 correspond to the plate material receiving position, the delivery conveyor 20 can accurately stop at the plate material receiving position without using a dog switch or the like.

In step S6, the host computer waits for a movement completion report from the transfer conveyor 20, and upon receiving the movement completion report, proceeds to step S7. In step S7, a separation start command is issued to the separation device 1c. When the separation device 1o receives this separation start command, it moves along the rail 18 onto the stonokcongeno'1. At this time, in the stock conveyor 1, the moving roller 4 is retreated to the side surface of the frame 3 by the driving of the moving roller device 8, and an opening is formed in the upper surface of the frame 3. The separator 10 is opened through this opening by the magnetic punt '13.
is inserted, and one end of the plate material W on the lifter stand 5 is held by suction and lifted by the magnet bar 13. Then, by undulating the magnetic pad 13 in the vertical direction, the uppermost plate material W is separated. next,
The moving roller device 8 is driven to insert and move the moving roller 4 between the separated plate material W and the plate material W below it. As a result, the plate material W is placed on the moving roller 4. Next, the separating device 10 is moved onto the delivery container 20 located at the board receiving position. Then, activate the magnetic pad 13 and send it to the table 3 of 720.
1. Load the board IIAW onto the board.

In step N5, the delivery conveyor 20 determines whether or not the receiving has been completed. Once received,
The sensor 38 on the table 31 of the delivery conveyor 20 is
N, and the program moves to step N6. In step N6, a reception completion report is sent to the host computer.

In step N7, the plate material W on the table 31 is gripped by the plate material gripping section 36.

On the other hand, the host computer waits for a reception completion report in step S8. When the delivery conveyor 20 reports the completion of receiving, a "C movement command" is issued to the delivery conveyor 20 in step S9. The delivery conveyor 20 waits for this movement command in step N8, and upon receiving the movement command, proceeds to step N9.

In step N9, the punch press machine 50 is moved along the guideline 45. Note that during this movement, the movement is performed while detecting the positional deviation with respect to the guideline 45 in the same manner as described above. Here, too, the delivery conveyor 20 is
moves on the floor surface 2, the delivery conveyor 2d can move at high speed and stably. Further, by making the end of the guideline 45 correspond to the plate material delivery position of the punch press 50 examples, the delivery conveyor 20 can be accurately stopped at the plate material delivery position without using a dog switch or the like.

In step SIO, the host computer determines whether the punch press machine 50 is in a state where it can accept a plate. When receiving a report from the punch press machine 50 that it is in an acceptable state, the process moves from step SIO to step Sll. In step Sll, a delivery command is issued to the delivery conveyor 20. On the other hand, the delivery conveyor 20 waits for this delivery command at step NIO, and upon receiving the delivery command, moves to step N11. In step Nil, the plate material W is carried onto the work table 51 of the punch press machine 50 by the arms 35a and 35b.

In step S12, the host computer determines whether or not the loading of the plate material W has been completed.

This determination is made based on the detection signal of the sensor 54 on the work table 51. If it is determined that the loading of the plate materials has been completed, the process moves to step S13. Step S1
In step 3, a notification of completion of import is given.

After the notification of completion of import, the program returns to step S3 again and repeats the processes of steps S3 to S13. On the other hand, on the delivery conveyor 20, in step N12
, and waits for a notification of the completion of carry-in, and once the notification of completion of carry-in is received, the process returns to step N2 again.

It should be noted that if a work end command is input from the keyboard 61, the host computer's determination in step S3 is Yes.
and the program ends.

[Other Examples]

(a) In the above embodiment, the case where the present invention is applied to a plate processing line including a punch press machine is described, but the present invention can be similarly applied to a plate processing line including other plate processing machines, such as a shearing machine, etc. Applicable to

(b) In the above embodiment, the case where the present invention is applied to a plate material processing line including the separation device IO has been described, but the structure may be such that the separation device IO is omitted. In this case, the plates may be carried one by one onto the stock conveyor 1, and the plates may be carried one by one onto the delivery conveyor 20 from the stock conveyor l.

(C) Guideline 45 is not limited to what is shown in Figure 4. For example, a groove in the X-axis direction may be formed on the floor surface 2, and the aluminum plate 45a may be partially embedded in this groove.

〔Effect of the invention〕

In the plate material supply system according to the present invention, since the plate material conveying means is movably provided on the floor surface, the plate material can be transported to the processing section at high speed and stably.

[Brief explanation of drawings]

Fig. 1 is a partial plan view of a board supply system according to an embodiment of the present invention, Fig. 2 is a partially cutaway side view thereof, Fig. 3 is a schematic bottom view of a delivery conveyor, and Fig. 4 is a partially enlarged guideline. 5 is a schematic block diagram of the control section of the system, FIG. 6 is a schematic block diagram of the control section of the delivery conveyor, and FIGS. 7 and 8 are control flowcharts thereof. ■...Stock conveyor, 2...Floor surface, 20...
Delivery conveyor, 50... punch press machine.

Claims (1)

[Claims] (1) A board material supply system for supplying board materials to a processing section of a board material processing line, comprising: a board storage section for storing the board materials; A plate material supply system for a plate processing line, which is equipped with a plate material conveying means for transporting the material to the plate material, and a plate material feeding system for the plate material processing line.