JPH0325374B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a workpiece conveyance device in which a stock conveyor is provided with a stopper that can move forward and backward, thereby making it possible to efficiently stop a traversing table while cushioning the conveyor.

[Background technology]

For example, in buildings using the panel construction method, workpieces such as architectural panels used for walls and floors are stored for line adjustment during the production process, curing the workpieces, and even stored before shipping after production is completed. Therefore, it is often necessary to transfer the workpieces to multiple stock conveyors. In such cases, the cargo is transferred to the stock conveyor using a so-called traverser, but in addition to aligning the transverse table correctly with the stock conveyor, a cushioning effect is used to prevent the cargo from collapsing. It is desirable to stop the traversing platform.

[Purpose of the invention]

The present invention provides a workpiece conveyance device that is equipped with a stopper that is movable forward and backward and that is equipped with a shock absorber, and that can accurately stop the traversing table while buffering it, and that also allows the traversing table to easily select the stock conveyor to be stopped. intended to provide.

[Disclosure of the invention]

An embodiment of the present invention will be described below based on the drawings.

In the figure, a workpiece conveyance device 1 includes a traversing table 3 at one end of stock conveyors 2 arranged in parallel, and a stopper 4 on the stock conveyor 2.
..., 5... are installed.

In this embodiment, the stock conveyor 2 has three stock conveyors 2A, 2B, and 2C arranged side by side with a gap in between and one end a at the same time. A carry-in conveyor 7 and a carry-out conveyor 9 are arranged with the transverse table 3 in between.

The stock conveyor 2, as shown in FIG.
On both sides of the bottom plate 11, side plates 12, 1 each having a groove shape are provided.
It is a roller conveyor in which rollers 14 are rotatably arranged side by side between side plates 12 and 13, and connecting plates 16 and 16 fixed to leg pieces 15 of the roller conveyor
Each stock conveyor 2A, 2B, 2C is integrally and immovably connected.

Further, in this example, stoppers 4 are provided on the lower surface of the bottom plate 11.
5... is installed.

The stop 4 is attached to the inside of the stock conveyor 2 towards the running end A, and the stop 5 is attached to the outside.

The stopper 4 is a base plate 2 that is fixed to the rod end of a cylinder 20 that is attached to the bottom plate 11 using an L-shaped metal fitting 19.
1 is provided with a substantially L-shaped base frame 23 provided with a projecting piece 22 projecting toward one end a below the side plate 12. Further, in the base frame 23, in line with the cylinder 20, passing through a guide 32 on the lower surface of the bottom plate 11,
A guide shaft 33 is provided to prevent the stopper 4 from rotating, a buffer 6 is attached to the projection 22, and a detector 24 is attached to the base plate 21.

The shock absorber 6 includes a cylindrical body 26 and a rod 27 that protrudes from the cylindrical body 26 so as to be able to move forward and backward, and acts on the rod 27 by causing liquid to flow through the crest as the rod 27 retreats. This is a well-known shock absorber that absorbs the shock as well as its retreat, and is installed by fixing the cylinder 26 with its rod 27 facing inward. Note that a receiving piece 29 is fixed to the rod 27.

The detector 24 is, for example, a microswitch, and is disposed with its operating end 31 inclined toward the buffer 6 side. The stopper 5 has the same configuration as the stopper 4 except that it is symmetrical, and the protrusion 22 is similar to the side plate 1.
Located below 3.

The stops 4 and 5 also cause the buffer 6 to project beyond one end a of the stock conveyor 2 due to the extension of the cylinder 20.

The transverse table 3 has side plates 44 and 45 in the form of grooves set up on both sides of a trolley-shaped base 42 that runs on a rail 41 extending along one end a of the stock conveyor 2 to the running end A. In addition, a roller conveyor section 47 with drive rollers 46 arranged in parallel is provided therebetween.

Furthermore, the side surface of the base 42 can collide with the buffer 6 due to the protrusion of the stoppers 4 and 5, and by compressing and stopping the buffer 6, the base 42 can be correctly aligned with each stock conveyor 2. Therefore, its width is made slightly smaller than that of the stock conveyor 2. Further, on the front surface of the base 42, there are provided on both sides of the front surface pieces 49, 49 which can operate the operating ends 31 of the detectors 24 of the protruding stoppers 4, 5. Note that the contact piece 49 is formed to be slightly laterally elongated, and guide portions 50, 50 that are bent diagonally inward are formed at the ends. Furthermore, since the piece 49 is formed in a horizontally long manner, as shown in FIG.
Until it is compressed and stopped, the operating end 31
can continue to be pressed.

Furthermore, positioning tools 54, each of which has a positioning piece 53 attached to the upper end of a cylinder 52, are attached to both ends of the side plates 44, 45 of the transverse table 3. Note that the positioning piece 53 moves as the cylinder 52 expands.
Projecting beyond the through holes 55 of the upper pieces of the side plates 44, 45,
It is possible to prevent the workpiece W from shifting forward and backward on the upper surface thereof.

Note that the carry-in conveyor 7 and the carry-out conveyor 9 are as follows:
It is formed using a roller conveyor.

Further, a fixed stopper 8 is attached to the lower surface of the outer side plate 13 of the stock conveyor 2C located at the outer end, and always projects from one end a of the stock conveyor 2C and includes a buffer 6 and a detector 24.

However, the workpiece W on the carry-in conveyor 7 is transferred to the traversing table 3.
and the positioning piece 53 is protruded to prevent its movement. After that, stock conveyor 2A, 2
Select B, 2C, for example stock conveyor 2B
1, the stopper 5 on the outside, that is, on the lower side in the traveling direction of the traversing table 3, is projected. The stopper 5 has its operating end 31 in contact with the contact piece 49 of the traversing table 3 moving as described above, outputting a stop signal, and by that signal, the traversing table 3
Cut off the power to the drive machine. Note that a brake can also be activated if necessary. When the driving machine is cut off, the side surface of the traversing table 3 collides with the shock absorber 6, and the stock conveyor 2 stops generating impact force.
The workpiece W can be stopped in front of the workpiece B, and the workpiece W can be transferred as the positioning tool 54 is lowered. In addition, when taking out the work from the stock conveyor 2A in the return process, the work W is similarly taken out to the traverse table 13 by protruding the stopper 4 on the lower side in the direction of movement, that is, on the inside, and then transferred to the carry-out conveyor 9. I can post it.

In the workpiece conveyance device of the present invention, a larger number of stock conveyors 2 can be arranged.
Further, a photoelectric device may be used as the detector 24, and when the traversing table 3 is stopped in front of the slat conveyor 2 only when moving in one direction, the stopper 4,
5 can be arranged only on one side edge of the stock conveyor 2. Furthermore, the device of the present invention can be modified in various ways, such as by housing the stoppers 4 and 5 within the side plates 12 and 13 of the stock conveyor 2.

〔Effect of the invention〕

As described above, the workpiece conveyance device of the present invention is equipped with a stopper that is equipped with a buffer and a detector for stopping the traversing table and can move forward and backward, on the stock conveyors arranged in parallel, and the stopper is normally in the retracted position. In addition to making the detector safe, the traversing table can be stopped with high precision and cushioning, improving the positioning accuracy for loading and unloading workpieces, and preventing the load from collapsing. Many effects can be achieved, such as being able to freely select the stock conveyor to be stopped.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is a perspective view showing the main parts, and FIG. 3 is an operational view showing the transverse table in a stopped state. 2, 2A, 2B, 2C...Stock conveyor,
3...Transverse table, 4, 5...Stopper, 6...Buffer, 7...Incoming conveyor, 9...Outgoing conveyor,
24...Detector, W...Work.

Claims (1)

[Claims] 1. A traverse table is disposed on the stock conveyors juxtaposed for storing workpieces, and a buffer is provided on the stock conveyor, which can come into contact with the side of the traverse table when the base frame advances and retreats toward the traverse table; A workpiece transfer device equipped with a stopper equipped with a detector that outputs a signal to stop the traversing table when it comes into contact with the traversing table.