JPS63670Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a sheet material stacking device that sequentially stacks sheet materials conveyed by a conveyor on the discharge side of the conveyor.

(Prior Art) Generally, in a shearing line that manufactures a sheet material of a predetermined length from a coil material, for example, a second
As shown in the figure, the coil material 1, the straightening machine 2,
A shearing machine 3, a conveyor 4, and a sheet material stacking device 5 are provided, and while the coil material 1 is being pulled out from its tip, the straightening device 2 is used to remove the rollers 2a,
2a... clamps and stretches the coil material 1 at the top and bottom, removes the curl, and then cuts the coil material 1 at predetermined intervals using the shearing machine 3 to produce sheet materials 6, 6. ... are conveyed by a conveyor 4 and sequentially stacked on a stacking device 5 on the discharge side of the conveyor 4. In addition, in the stacking device 5, 5a is a stopper that determines the stacking position of the sheet materials 6, 6...;
5c is a cylinder that moves the lifter 5b vertically.

(Problem to be solved by the invention) However, in the above conventional device, the stacking device 5
When the first sheet material 6 to be stacked is moved from the conveyor 4 to the stacking device 5, the first sheet material 6 may stop on the way to the stopper 5a and not be fixed at a predetermined position. Therefore, conventionally, only the first sheet material 6 has been manually placed in a predetermined position in the stacking device 5 by an operator. Therefore, there were drawbacks such as a lack of safety for workers and a decrease in work efficiency.

(Purpose of the invention) Therefore, in view of the above, the present invention provides a pulling device that supports the first sheet material when it moves from the conveyor to the stacking device, and the pulling device moves the first sheet material The purpose of this system is to automatically process the initial placement of sheet materials and eliminate the need for manual work as in the past. be.

(Structure of the invention) Therefore, in the present invention, in a sheet material stacking device that stacks sheet materials conveyed by a conveyor on the delivery side of the conveyor, the sheet material stacking device is installed at a predetermined interval from the exit part of the conveyor, and the sheet materials are a stopper that determines the stacking position of the sheet materials to be stacked; a lifter that is provided between the stopper and the outlet of the conveyor and supports the sheet materials so as to be movable up and down via the pallet; and a lifter that is provided below the outlet of the conveyor and A retracting device disposed above the lifter and extendably supported from the stopper side, a drive device for moving the retracting device in and out, and a drive device provided at the outlet of the conveyor for handling the sheet material conveyed first. a detector that detects that the sheet material has passed through the exit portion; and a time delay from when the detector outputs a detection signal until the sheet material is supported on the drawing device and starts driving the driving device. Equipped with a timer to
The above-mentioned retraction device includes a base-side retraction member supported by a fixed part so as to be movable back and forth, a distal-side retraction member supported by the base-side retraction member so as to be movable back and forth, and provided before and after the base-side retraction member. The sprocket is wound around the sprocket and is composed of a chain attached to the fixing part and the tip side retracting member,
The driving device is configured to directly drive the base side retracting member, and is configured to retract the retracting device from the extended position to the retracted position by the driving device while supporting the first sheet material with the retracting device. . This allows the first sheet material to be automatically placed on the lifter.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. Incidentally, since the sheet material production system has already been described, the same parts are given the same reference numerals and the explanation thereof will be omitted.

FIG. 1 shows a sheet material stacking device according to the present invention, in which a stopper 7 is vertically disposed at a predetermined distance from the outlet of the conveyor 4 with its upper part fixed. The stacking position of the sheet materials 6 is determined by receiving the conveyed sheet materials 6 and regulating the rear end position. A pantograph-type lifter 8 is provided between the stopper 7 and the outlet of the conveyor 4, and the pallet 9 is placed on rollers 8a and 8b arranged in parallel at the upper end of the lifter 8. 4, and as the sheet materials 6 are stacked on the pallet 9, the lifter 8 is lowered by actuation of a cylinder (not shown) provided in the lifter 8. ing.

Furthermore, at a position below the outlet of the conveyor 4 and above the lifter 8, a protection roller 10a for buffering the sheet material 6 conveyed first is placed.
A two-stage retracting device 1 consisting of a distal retracting member 10 supported above and a proximal retracting member 11 supporting the distal retracting member 10 so as to be movable back and forth.
2 is placed. The retracting device 12 includes four parts that support the upper and lower surfaces of the base retracting member 11.
It is supported in an extensible manner (possible to move back and forth) from the stopper 7 side by a drive device 14 which also serves as a fixed part and has guide rollers 13, 13, . . .
5 is provided. On the other hand, the drive device 14 includes a motor 16 and a chain 17 connected to the motor 16.
A pinion 18 driven through the
By engaging the pinion 18 with the rack 15 of the base side retracting member 11 and rotating it,
The base side retracting member 11 is made to move forward and backward. Further, the driving device 14 and the distal retracting member 10 of the retracting device 12 are connected to the sprocket 1 provided at the front and rear ends of the base retracting member 11.
Two chains 2 wrapped around 9 and 19 respectively
0 and 20, and as the base side retracting member 11 moves forward and backward, the two chains 20 and 20 connect to the two sprockets 1.
By rotating by the movement of 9 and 19, the distal end side retraction member 10 is simultaneously extended and contracted back and forth.

In addition, a detector 21 consisting of a proximity switch is disposed at the exit of the conveyor 4 to detect that the first conveyed sheet material 6 is passing through the exit. The motor 16 of the drive device 14 is operated with a delay of a predetermined time by a timer to be described later based on the detection signal of the device 21, and the suction device 12 is activated so that the first sheet material 6 is moved to the protective roller 10a of the leading end side drawing member 10. From the extended position where the retracting device 12 is supported above (the position of the retracting device 12 shown by the solid line in the figure), to the retracted position where the distal retracting member 10 is housed within the proximal retracting member 11 (the position of the retracting device 12 shown by the phantom line in the figure). position). Note that 22 is a guide table that guides the sheet materials 6, 6, . . . to move onto the lifter 8. Further, a timer (not shown) is built in the driving device 14, and after the first sheet material 6 is detected by the detector 21, it is supported on the protective roller 10a of the tip side retracting member 10. The timer (not shown) delays the operation of the motor 16 by a predetermined period of time, thereby delaying the start of the backward movement of the distal retracting member 10.

Next, the operation of the above embodiment will be explained.
Until the first sheet material 6 is conveyed to the outlet of the conveyor 4, the pulling device 12 is positioned in the extended position by the drive device 14.

Then, when the first sheet material 6 is conveyed to the exit part of the conveyor 4, a detection signal is immediately generated from the detector 21, but the first sheet material 6 is conveyed to the protective roller of the tip side drawing member 10. 10a
Only when it is supported above, the timer starts operating the motor 16 of the drive device 14, and the base-side retracting member 11 of the retracting device 12 moves backward due to the meshing rotation of the rack 15 and pinion 18. The chains 20, 20 rotate clockwise in the drawing due to the backward movement of the sprockets 19, 19, and the distal retracting member 10 is positioned from the extended position to the retracted position.

At this time, the first sheet material 6 is guided backward as the leading end retracting member 10 moves backward, but its backward movement is restricted midway by the stopper 7, and it is separated from the leading end retracting member 10 moving backward and placed in a predetermined stacking position on the pallet 9. Therefore, by appropriately setting the timer, the operation of placing the first sheet material 6 in a predetermined stacking position can be automated efficiently and reliably without time loss, making the manual operation unnecessary and improving the safety of the worker, and the worker can immediately perform other operations after placing the pallet 9 on the lifter 8.
In addition, since the retraction device 12 has a two-stage retraction structure having the base-side retraction member 11 and the tip-side retraction member 10, the device can be made compact while having a long stroke.

(Effects of the invention) As explained above, according to the invention, when the first sheet material from the conveyor is supported on the two-stage pulling type pulling device, the driving device is actuated and the sheet material is moved by the pulling device. Since it is supported and pulled in and automatically guided to the predetermined stacking position, the device can be made more compact, and the work of placing the first sheet material in the predetermined stacking position can be done efficiently and without loss of time. It can be reliably automated, improving worker safety and increasing work efficiency.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is an overall schematic configuration diagram showing a sheet material production system. 4... Conveyor, 6... Sheet material, 7... Stopper, 8... Lifter, 9... Pallet, 10...
Tip side retraction member, 11... base side retraction member,
12... Retraction device, 14... Drive device, 15...
...Rack, 16...Motor, 18...Pinion,
19... Sprocket, 20... Chain, 21
……Detector.

Claims (1)

[Scope of utility model registration request] In a sheet material stacking device that stacks sheet materials conveyed by a conveyor on the discharge side of the conveyor, a stopper is attached at a predetermined interval from the outlet of the conveyor and determines the stacking position of the conveyed sheet materials; A lifter is provided between the stopper and the outlet of the conveyor and supports the sheet material so as to be movable up and down via the pallet; a lifter is provided below the outlet of the conveyor and above the lifter; A retracting device that is extendably supported from the side, a drive device that makes the retracting device appear and retract, and a drive device that is installed at the exit of the conveyor to detect that the sheet material that is conveyed first passes through the exit. and a timer that causes the driving device to start driving with a delay from when the detector outputs a detection signal until the sheet material is supported on the retracting device, the retracting device comprising: A base-side retracting member supported by a fixed part so as to be movable back and forth, a distal-side retracting member supported by the base-side retracting member so as to be movable back and forth, and a sprocket provided at the front and rear of the base-side retracting member. a chain attached to the fixed part and the distal-side retracting member, and the driving device is configured to directly drive the base-side retracting member, while supporting the first sheet material with the retracting device. A sheet material stacking device, characterized in that the retracting device is configured to be retracted from an extended position to a retracted position by a drive device.