JPH07257806A - Continuous carrying-out device for stacked sheets - Google Patents

Abstract

PURPOSE:To provide a fork type stacked sheet carryout device with continuous operation, with which such an inconvenience is eliminated as folding of sheet etc., which has been generated in a conventional arrangement because the forks position across the width is fixed and a slit position of sheet is formed between the forks depending upon the cutting dimension. CONSTITUTION:To an angle a linear rail 18 is fixed in the width direction of forks 16a-16n and the forks working scaffold 10 side-ends by the clamp 17 system so that the forks 16a-16n are set, and thereby the forks can be moved to any desired position across the width and fixed there by releasing the clamp 17. This enables continuous carrying-out of stacked sheets regardless of their cutting dimension, and it is possible to prevent the facility from having a downtime and enhance the producibility.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accumulates sheets cut into a predetermined size by a slitter and a sheet cutter and conveyed straight on a conveyer by a layboy, and accumulates the accumulated sheets in a predetermined amount. The present invention relates to a continuous carry-out device for accumulated sheets that is continuously carried out to a place.

[0002]

2. Description of the Related Art A conventional sheet unloading method and apparatus will be described with reference to FIG. 1 of the present invention. First, although not shown in this figure, a continuous running web of a wide single paper or laminated paper from an unreel stand. 1 is fed out, cut vertically and horizontally by a slitter and a sheet cutter to form a sheet S of a predetermined size, and while being conveyed by the conveyor 1 for conveyance, lap (overlap) is performed as shown in FIG. The sheet S is ejected by the ejection conveyor 2 continuously provided at the end portion of the sheet, and is stacked by the rayboy 3 provided on the rear side of the ejection conveyor 2.

The layboy 3 comprises a kind of frame formed by a pallet 5, a side jogger 6, a stopper 7 and a front jogger 8 on a lifter 4, so that the sheets S are forcibly and sequentially deposited in this frame. Has become. The lifter 4 is installed in an underground pit 9 recessed in the floor surface F below the terminal end side of the conveyor 1, and is composed of a large lifter 4a at the bottom and a plurality of small lifters 4b at the top. The pallet is placed on the lifter 4b. A work scaffolding 10 is installed behind the rayboy 3 at a certain height from the floor surface F.

In order to stack and carry out the sheets S carried by the carrying conveyor 1, first of all,
The sheets S ejected from the ejecting conveyor 2 are accumulated by the respective layboys 3, that is, they are forcibly accommodated and accumulated in the frame of the side jogger 6 and the stopper 7 and the front jogger 8 on each pallet 5. At this time, the small lifter 4b and the large lifter 4a of the lifter 4 are temporarily lowered according to the accumulated amount of the sheets S. When a predetermined amount of sheets S on each pallet 5 are accumulated in this way, the accumulated sheet 11S on each pallet 5 is lowered to the lowest position by the lifter 4,
It is carried out to a predetermined place by a transfer roll conveyor.

[0005]

By the way, in the conventional fork type continuous stacking sheet carrying-out apparatus, the fork 16 is used.
Since the position in the width direction is fixed, depending on the cutting size, the slit position of the sheet S may be located between the forks, and the sheet S may be unusable due to problems such as bending of the sheet and bending of the sheet. Was occurring.

In view of the above problems, the present invention has an object to eliminate the restriction due to the cutting size by making it possible to change the position in the width direction of the fork in the continuous carrying-out apparatus for the accumulated sheets. is there.

[0007]

According to another aspect of the present invention, there is provided a continuous carry-out device for a stacked sheet, wherein a sheet cut by a sheet cutter and conveyed straight by a conveyer is accumulated by a layboy in a predetermined amount. In a sheet stacking and unloading device for carrying out a stacked sheet to a required place, from the lower side of the work scaffold provided at a certain height behind the transport conveyor, the transport conveyor side and the workboy scaffolding rayboy side And a comb-shaped fork 16 for connecting the piled sheets to the predetermined location while receiving the sheet conveyed by the fork 16. The forks 16a, 16b, 16c, ... 16n can be set separately.

[0008]

Embodiments of the present invention will be described below with reference to FIGS. The description will focus on the points that are different from the description of the conventional example described above.

As is apparent from FIG. 1, the worker M inspects
A comb-like fork 16 for connecting the terminal end side of the conveyor 2 and the front side of the work scaffold 10 stands by below the work scaffold 10 for performing various operations such as monitoring. Regarding the setting position of the fork 16 in the width direction, the forks 16a, 16b, 16c, ... 16n are set in advance according to the cutting size when the cutting size is changed.

As a method for setting the fork 16, a linear rail 18 is provided in the width direction of the fork 16 and an end of the fork 16 on the side of the work scaffold 10 is clamped by a clamp 17 method so that the fork 16 can be clamped at an angle. When the 17 is released, the fork 16 can be moved to the free position in the width direction.
Can be moved and fixed.

This fork 16 forcibly cancels the wrapping of the sheet S by lowering the speed of the conveyer conveyor 1 and simultaneously increasing the speed of the conveyer conveyor 2 after a predetermined amount of the sheet S is accumulated on the layboy 3, thereby lifting the lifter. After the stacking sheet 11S is lowered by 4 by a certain amount, it advances from the work scaffold 10 side toward the transport conveyor 2 side, and connects the both.

After the sheet S is placed on the fork 16, the speeds of the conveyer conveyor 1 and the conveyer conveyor 2 are restored to wrap the sheet S and simultaneously deposit the sheet S on the fork 16. The fork 16 is temporarily lowered to a predetermined lower limit position according to the amount of the sheet 15S accumulated.

Each of the accumulated sheets 11S is provided on the lifter 4b after the fork 16 moves forward and the lifter 4 descends to the lowest point to reach the same level as the pallet supply conveyor 12 and the paper discharge conveyor 13 shown in FIG. Transport conveyor 1
4, the pallet 5 is carried out to the paper discharge conveyor 13 side. An empty pallet to be used next is prepared on the pallet supply conveyor 12 in advance so that it is conveyed onto the lifter 4 at the same time when the above-described respective stacked sheets 11S are carried out. The conveyed empty pallet is stopped at a predetermined position by a stopper provided on the transfer conveyor 14, and at this time, the empty pallet is confirmed to be carried in by an in-load sensor attached to the stopper, and then transferred to the pallet for transfer. Conveyor 14
And the paper feed conveyor 12 is stopped. Transfer conveyor 14
After the pallet supply conveyor 12 is stopped, the lifter 4 rises to a predetermined height and stands by.

The fork 16 descends for a while depending on the amount of the sheet 15S deposited, and when it reaches a predetermined lower limit position, the fork 16 is pulled down below the work scaffolding 10 and remains at that height.
The accumulated sheet 15S located above is transferred onto an empty pallet waiting on the lifter 4.

The fork 16 drawn in below the work scaffold 10 rises to a predetermined height when the fork comes out to the conveyor 1 side, stands by, and prepares for the next switchover.

With respect to the device represented by the fork 16 in the above-described embodiment, the portion directly contacting the sheet S adopts a belt sliding method or a roller sliding method to reduce the slip resistance of the paper surface. You can do it as well.

Also, in the embodiment, as shown in FIG. 4, the fork 16 is positioned in the width direction by manual movement in the width direction by the linear rail 18 and fixed by the manual clamp 17 method. An automatic positioning method may be adopted.

By providing the platform changing device with the fork 16 under the work scaffold 10 as in the embodiment, the space for carrying out the normal work is not invaded, so that there is a margin around the rayboy of the cutter due to the layout of the equipment. This is advantageous for effective use of space, including cases where there is no.

[0019]

In the sheet stacking and unloading apparatus according to the first aspect of the present invention, the stacked sheets are conveyed straight by the conveyor for conveyance and accumulated by the layboy in a predetermined amount in the same manner as a normal cutter table replacement. Will be delivered to the required delivery location using the line.

As described above, according to the sheet stacking and unloading apparatus of the first aspect, it is possible to continuously carry out the sheet stacking even for the products of any cutting size. There is an effect.

Further, according to the sheet stacking and unloading apparatus of the first aspect, the continuous table changing apparatus itself can fit under the work scaffold,
It is effective in effectively using the limited space.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a sheet stacking / unloading device according to an embodiment of the present invention.

FIG. 2 is a plan view of the above-described sheet stacking / unloading device.

FIG. 3 is a perspective view showing a stacking sheet deposited by a rayboy and a pallet exchanging fork device.

FIG. 4 is a perspective view of a fork position moving device.

[Explanation of symbols]

 S sheet (conveyance sheet) 1 conveyor for conveyance 2 conveyor for ejection 3 layboy 4 whole lifter 4a large lifter 4b small lifter 5 pallet 6 side jogger 7 stopper 8 front jogger 9 underground pit 10 working platform 11S deposition sheet 12 pallet supply conveyor 13 Paper Discharge Conveyor 14 Transfer Conveyor 15S Accumulated Sheet (Replacement) 16 Fork 17 Clamp 18 Linear Rail

Claims (1)

[Claims] 1. A stack carry-out of a sheet in which a sheet cut by a sheet cutter and straightly conveyed by a conveyer is accumulated by a layboy in a predetermined amount and the accumulated sheet is conveyed to a required place. In the device, from the lower side of the work scaffolding provided at a constant height behind the transfer conveyor, the transfer conveyor side and the layboy side of the work scaffold are connected by a comb-shaped fork, and with this fork A continuous unloading device for a stacked sheet, wherein a position in a width direction of a comb-like fork in the device for unloading the deposited sheet to the required place can be changed while receiving the transported sheet.