JPH04283038A - Work storage device - Google Patents

Abstract

PURPOSE:To increase stock quantity of work, and store various kinds of material, and supply the appropriate material to a processing machine, and store the residual materials. CONSTITUTION:A pallet, on which desired works are placed in parallel with each other, is selected among various kinds of pallet 3, which are housed in a multi-level warehouse 1 and on which various kinds of work W are placed, and a work position on the selected pallet is detected for pick-up to supply this work to a processing machine, and shape and dimension of the residual part of this work are recorded automatically for storage. Since a desired work is detected among the various works W in the pallets 3 so as to be carried to the processing machine by a pick-up means 15 and a storage condition detecting means 39 provided in a pallet supporting base 9, the characteristic of this work storage device is its enabled automation.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a workpiece storage device for supplying workpieces to a processing machine such as a band saw, and for storing leftover materials after processing.

0002

[Prior Art] Conventionally, a workpiece storage device for three-dimensionally storing and supplying workpieces, which is a workpiece material, has a rack-like storage having a plurality of shelf supports on the left and right sides of the main body. The workpieces were arranged in a plurality of rows at predetermined intervals, and one or more workpieces were placed on each rack serving as the shelf support. In order to take out these works from the storage and supply them to a processing machine such as a band saw, a crane device that travels above the storage is provided, and the necessary workpieces W are
The crane device is moved within the predetermined interval of the storage where the is placed, the chain provided on the crane device that can be raised and lowered is lowered to the position of the workpiece, the workpiece is suspended from the hook of this chain, and the chain is hoisted. The workpiece was suspended on a storage rack and moved to the transport section for the processing machine. During this time, for example, a lamp or the like was turned on in the storage area corresponding to the workpiece take-out position, so that the remaining material could be checked when it was stored. Then, when storing the leftover materials, the length of the leftover materials, etc., was measured and recorded.

0003

SUMMARY OF THE INVENTION The above-mentioned conventional technology has a problem in that the amount of stock in the storage is small, resulting in poor efficiency. Furthermore, if the workpiece to be cut is a round bar, there is a risk that the workpiece will fall due to an earthquake or the like, which poses a safety problem.

[0004]Furthermore, the above-mentioned storage apparatus has the disadvantage that the recording of remaining materials, etc. is done manually and errors occur, making automation difficult.

The present invention was made in view of the above circumstances, and its purpose is to increase the stock amount of workpieces, store various materials, and supply and store appropriate materials to processing machines. The present invention aims to provide a workpiece storage device that makes it possible.

[0006]

[Means for Solving the Problems] In order to achieve the above object, there are provided pallets that are removably stored in a warehouse and on which various workpieces are arranged side by side, and a pallet support stand on which a selected pallet from these pallets is taken out and placed. A storage state detection device is provided on the pallet support base and detects the position of a desired workpiece, and a plurality of pick-ups that are movable in the horizontal direction and vertically moveable to project the desired workpieces onto the pallet based on a signal from the storage state detection device. A workpiece storage device was constructed by comprising the device and.

[0007]

[Operation] In the workpiece storage device of the present invention, when a pallet on which a desired workpiece is placed stored in a warehouse is taken out and placed on a pallet support stand, the storage state detection device provided on the pallet support stand detects the desired workpiece. The pickup device moves to the desired work position and stops near both ends of the work in response to this detection signal. Next, the pickup is raised and protrudes upward to lift the desired workpiece onto the pallet. This lifted workpiece is transported, for example, by a crane device to a conveyor device of a processing machine.

[0008] The workpiece remaining after the machining is again placed on a pickup protruded by, for example, a crane device. At this time, one side of the pickup is moved to the other side to close the gap, and the workpiece is placed on the side. The workpiece placed on the pickup is then stored on a pallet by the descent of the pickup, and the pallet is moved from the pallet support stand to a predetermined position in the warehouse and stored.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

FIG. 7 is a layout diagram of a multi-level warehouse, pallet support stands, conveyor equipment, processing machines, etc. In FIG. 7, the multi-story warehouse 1 is a structure in which a plurality of pallets 3 are stored in a plurality of stages, and the stored pallets 3 are arranged in a plurality of rows. Pallets 3 are stored in this multi-level warehouse 1 so that they can be carried in and out, and the storage position of each pallet 3 is recorded by a separately provided management control device 5.

A pallet transporting crane 7 is installed near the multi-storey warehouse 1, and each pallet 3 in the multi-storey warehouse 1 is
It is designed to perform unloading and loading operations. For example, when receiving a command to carry out a pallet 3 in the third tier of row A, the pallet transport crane 7 moves to row A of the multi-storey warehouse 1, takes out a certain pallet 3 in the third tier, and moves it to the specified position. It is configured to be transported.

At a predetermined position in the front of the multi-story warehouse 1, a pallet support stand 9 is provided on which the pallet 3 carried out by the pallet conveying crane 7 is placed. A conveyor device 13 is provided near the pallet support stand 9 and at a position along the pallet support stand 9 for transporting a workpiece W to a processing machine such as a band saw machine 11.

In such a configuration, a predetermined pallet 3 stored in a predetermined position in the multi-story warehouse 1 is taken out by the transport crane 7 based on a command from the management control device 5 and placed on the pallet support stand 9. A pick-up device 15, which will be described later, picks up a predetermined workpiece W on the pallet 3 and places it on the conveyor device 13, and the conveyor device 13 carries the workpiece W into the bandsaw machine 11 for processing. and,
The workpiece W, which has become a residual material after processing, has its shape, dimensions, etc. recorded in the management control device 5, and is transferred to the pickup device 1.
5, it is returned to a predetermined position on the pallet 3. At this time, the remaining material is detected by a phototube provided at position P on the conveyor device 13, and is retreated from the detected position to a distance of, for example, a, and then lifted by another crane and returned to a predetermined position in the workpiece storage device 9.

As shown in FIGS. 1, 2 and 3, the pallet support stand 9 is a substantially concave-shaped base having pallet receiving parts 9a and 9b on the upper surface on which the pallet 3 is placed. Support beams 17 extending from the left and right side walls are provided to protrude from the side surfaces. Further, a plurality of workpiece detection elements 19 (three in FIG. 1) corresponding to each row of workpieces W placed on the pallet 3 are provided in the pallet receiving portion 9a. Then, the pallet 3 is detected by this workpiece detection element 19.
The configuration is such that the upper workpiece position is detected. Also,
A guide 21 is provided on the support beam 17, and a storage state detection device 23 is slidably attached via this guide 21. This storage state detection device 23 includes a main body portion 25 having a substantially U-shaped cross section that narrows the pallet 3 placed on the pallet receiving portions 9a and 9b, and an arm-shaped body portion 25 projecting parallel to the main body portion 25. The main body part 25 is composed of a plurality of sets of position detectors 27 attached to the inner corresponding surface.
By moving along the guide 21, the positions of the workpieces W arranged on the pallet 3 in the longitudinal direction can be detected.

The pickup device 15 is provided inside the pallet support stand 9 . This pickup device 15
is a board 33 that is moved in the direction of the front and back of the paper in FIG.
A guide 37 is provided to engage with the lifter 35, and at least two pickups 39 are slidably provided on the guide 37. Then, the board 33 of this pickup device 15 is attached to the guide rail 3.
a moving cylinder 41 that moves the lifter 35 in one direction; a lifter cylinder 43 that moves the lifter 35 up and down;
A pickup moving motor 45 for moving the pickup 39 along the guide 37 is provided.

A pallet 3 has workpieces W as shown in FIG. 1 placed side by side on a pallet support stand 9 constructed as described above.
When the workpiece W3-2 on the pallet 3 is to be taken out, the pick-up device 15 is moved to the lower part of the third row by the moving cylinder 41. At this time, the positioning of the pickup device 15 is performed by, for example, an encoder 47 provided on the board 33. Note that this positioning is not limited to the encoder 47, and may be performed using an LS, a phototube, a proximity switch, etc. for each column.

Next, the storage state detection device 2 is placed on the pallet 3.
3, and measure the distance x3 from one end of the pallet 3, which is the reference position, to one end of the workpiece W3-2, and the distance x4 to the other end, as shown in Figures 1 and 4. Then, the actual length of workpiece W3-2 is x4
−x3. To pick up this work W3-2, as shown in FIG. 4, one of the pick-ups 39 provided on the guide 37, for example, the pick-up 39A, is moved to the position x4-α by the pick-up moving motor 45, and the pick-up 39B is moved to the position x4-α. Similarly, move to the position x3 + α. Here, α is a constant value, and the pickups 39A and 39B are both positioned between x4 and x3 (see FIG. 4). When positioned in this way, the guide to which the pickups 39A and 39B are attached 21 is raised by the bias of the lifter cylinder 43, and the work W3 is placed on the pickups 39A and 39B.
-2 and protrudes onto the pallet 3.

This protruded workpiece W3-2 is shown in FIG.
, as shown in Figure 6, the hanging part 49 of the pickup crane
and is moved onto the support rollers 51 of the conveyor device 13. Then, it is positioned by an upright roller 53 provided on the conveyor device 13 and conveyed to the bandsaw machine 11.

For example, the cut remaining workpiece W1 of the workpiece W carried into the band saw machine 11 is returned by the reverse rotation of the conveyor device 13 shown in FIG.
is stopped when it reaches the detection point P of the conveyor device 13, and when it has further moved by a distance a, the hanging portion 4 is stopped.
9 onto pallet 3. At this time, the workpiece W3-2 is cut and shortened, so the signal from the detection point P is input to the management control device 5, and the output from the management control device 5 is transmitted to the pickup 39A. The interval between and 39B is shortened to receive the workpiece W1. Next, the lifter cylinder 43 is driven to retract the lifter 35, and the workpiece W1 is moved to the pallet 3 on the pallet support stand 9.
The pallet 3 is then stored at its original position in the multi-storey warehouse 1.

It should be noted that the present invention is not limited to the embodiments described above, but can be implemented in other embodiments by making appropriate changes.

[0021]

[Effects of the Invention] As explained above, according to the present invention, since the structure is as described in the claims, it is possible to increase the stock amount of workpieces and to stock materials of various shapes. It has the advantage of being able to be stored and to supply and store suitable materials to the processing machine, with the potential for full automation.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a pallet support stand according to an embodiment of the present invention.

FIG. 2 is a front view in FIG. 1.

FIG. 3 is a side view in FIG. 1;

4 is an explanatory diagram of the operation of the pickup device of FIG. 1. FIG.

FIG. 5 is an explanatory diagram of the pickup device and the hanging portion of the pickup crane in FIG. 1;

FIG. 6 is an enlarged view of the conveyor device of FIG. 7;

FIG. 7 is an explanatory plan view in which the pallet support stand of the present invention is arranged between a three-dimensional warehouse and a bandsaw machine.

[Explanation of symbols]

1　3-dimensional warehouse 3 Palette 5 Management control device 9 Pallet support stand 15 Pick up device 23 Storage state detection device 39 Pickup

Claims (1)

[Claims] Claim 1: A pallet that is removably stored in a warehouse and on which various workpieces are arranged side by side, a pallet support stand on which a selected pallet is taken out and placed on the pallet, and a pallet support stand that is provided on the pallet support stand and is arranged to place a desired workpiece position. a storage state detection device that detects the storage state, and a plurality of pick-up devices that are movable in the left-right direction and vertically movable and that project the desired workpieces onto the pallet based on a signal from the storage state detection device;
A workpiece storage device comprising: