JPH0295669A - Pile device for sheet - Google Patents

Abstract

PURPOSE:To replace a pile table smoothly by providing a conveyor belt with a paper suspending mechanism, and thereby constituting a duck board to be supported by a lifting mechanism which is lowered depending on paper piling speeds while the duck board is being inserted upward above the pile table. CONSTITUTION:When a paper suspending mechanism is actuated, sheets of paper 5 on a conveyor belt 1 are dammed up. Then, by the time, a duck board 12 is inserted upward above a pile board 4, and a paper suspending plate 8 is rotated downward so that the suspension of the sheets of paper 5 is released thereafter. After that, the sheets of paper 5 are received by the duck board 12, then by the time, the pile table 4 is replaced. In this case, the duck board 12 is lowered depending on the piling speeds of the sheets of paper 5. After the pile table 4 has been replaced, the duck board 12 is pulled in so that the sheets of paper 5 on the board are transshipped onto the pile table 4. By this constitution, the duck board 12 can be inserted as a paper receiver without damaging the sheets of paper 5 when the pile table 4 is replaced, and the pile table 4 can thereby be replaced with the occurrence of no jamming even when many sheets of paper 5 are drawn off in operation at high speeds.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sheet-fed printing press that is connected to the downstream side of a device that continuously discharges sheets of paper, such as a rotary printing press having a sheet-cutting device. This invention relates to a paper pile device.

[Conventional technology]

As a post-process of the rotary printing press, the continuously printed paper wrapper is cut into sheets using a sheet cutting device, and these sheets are sequentially stacked in a stack using a pile device.

The conventional pile device has a paper stacking height of 1200 mm.
It is possible to stack up to 1,800 sheets, which is quite a large number of sheets in a bar, but if an auto splicer is installed in the paper feed section of a rotary printing machine and the paper is changed automatically, and the machine is operated non-stop, The amount of stacked paper is not enough, so the paper that is continuously discharged is caught on the drainboard once, and during that time, the paper that has been piled up until now is pulled out along with the stand, a new stand is installed in its place, and the above-mentioned drainboard is placed on this stand. After receiving the paper, we reload the paper and continue stacking the paper.

That is, the above-mentioned drainboard device eliminates the need to stop the machine to replace the paper stacking table of the pile device.

In conventional pile equipment, the drainboard device is either inserted by hand from the paper output side after the worker lowers the paper stacking table and sees the space where the drainboard will fit, or inserts it from the paper feed side via a drive device such as an air cylinder. It is supposed to be done.

[Problem to be solved by the invention]

In the conventional drainboard device mentioned above, the operator's judgment is important for the series of operations described above, and if the drainboard is not inserted properly, the product may be damaged, or jams may occur due to the large amount of paper being ejected due to high-speed operation. There were times when I had to stop the machine.

The present invention has been developed in consideration of the above-mentioned problems, and it is possible to insert a drain board as a paper receiver without damaging the paper when replacing the paper stacking table, and also prevent jams even when a large amount of paper is ejected during high-speed operation. It is an object of the present invention to provide a sheet pile device in which a paper stacking stand can be exchanged without occurrence of a problem.

[Means to solve the problem]

In order to achieve the above object, the sheet pile device according to the present invention has a paper stacking table installed at the end of a conveyor belt that conveys sheets of paper in a diagonally stacked manner according to the stacking speed of the sheets. The conveyor belt is placed on an elevating table that descends from the conveyor belt, and is inserted horizontally above the conveyor belt when the amount of paper stacked on the paper stacking table reaches a predetermined amount. In a sheet pile device equipped with a slat, the conveyor belt is provided with a paper stopper mechanism that temporarily blocks the paper on the conveyor belt, and the slat is inserted above the paper stacking table. It is supported by an elevating mechanism that descends according to the stacking speed.

[For production]

The paper on the conveyor belt is stopped by activating the paper stopper mechanism. During this time, the drainboard is inserted above the paper stacking table, and then the paper stopper plate is rotated downward to release the paper stopper.

Subsequent paper is received by the drainboard, and the paper stacking table is replaced in the meantime. At this time, the drainboard descends according to the speed at which the paper is stacked. After replacing the paper stacking table, pull in the drainboard and transfer the paper on it onto the paper stacking table.

〔Example〕

Embodiments of the present invention will be described based on the drawings.

In the figure, 1 is a conveyor belt connected to the downstream side of a sheet cutting device (not shown), and 2 is this conveyor belt 1.
The conveyor roller 3 on the conveyance end side is a lifting platform disposed at the conveyance end of the conveyor belt 1, and this lifting platform 3 is guided by a guide member 4 so as to be able to rise and fall freely. It descends at a speed corresponding to the stacking speed of the paper 5 conveyed on the belt 1. Reference numeral 4 denotes a paper stacking table which is removably placed on the lifting table 3. Above the lifting platform 3 is a conveyor belt 1.
A paper stopper 6 that causes the paper 5 that has been conveyed to collide with and fall onto the paper stacking table 4, and a vibrator 7 that aligns the papers on the paper stacking table 4 are provided.

A paper extrusion roller 2a is connected to the conveyor roller 2 of the conveyor belt 1 so as to be able to move toward and away from the conveyor roller 2.

A plurality of the conveyor belts 1 are arranged in a spaced manner, and a paper stopper plate 8 is oriented in the conveyance direction below the conveyor belt 1 and in a portion corresponding to the spaced gap,
Moreover, one end is pivotally supported on the upstream side in the conveyance direction, and is provided so as to be freely rotatable in the vertical direction. A cylinder device 9 is connected to the paper stopper plate 8, and the conveyor belt 1 is moved up and down from the lower side to the upper side by this cylinder device 9.

Further, a paper stopper brush 10 is provided above the belt conveyor 1 so as to face the paper stopper plate 8.

11 is a drainboard device provided below the belt conveyor 1, and this drainboard device 11 includes a drainboard 12 provided facing the conveyance direction of the conveyor belt 1, and a drainboard 12 horizontally placed above the paper stacking table 4. It consists of a rotless cylinder 13 that appears and retracts. The drainboard 12 is connected to a moving member 13a of the rodless cylinder 13, and the receiver is guided by rollers 14.

The rodless cylinder 13 and the rollers 14 of the rodless cylinder 13 and the receiver are attached to a frame (not shown), and this frame is attached to an elevating device, and this elevating device allows the drainboard device 11 to speed up the stacking speed of the paper 5. It descends at an appropriate speed and ascends at an appropriate speed. Further, the surface of the drainboard 12 is covered with a belt (not shown).

In the above configuration, the sheets of paper 5 cut into sheets by the sheet cutting device are conveyed onto the conveyor belt 1 in a diagonally overlapping manner, and from the end of the sheet are sequentially transferred onto the paper stacking table 4 on the lifting table 3. It keeps piling up.

At this time, the lifting platform 3 descends at a speed corresponding to the stacking speed of the paper 5, and the papers 5 are stacked on the paper stacking platform 4 while being aligned by the stopper 6 and the pie break 7.

With a predetermined number of sheets of paper 5 stacked on the paper stacking table 4, the cylinder device 9 is actuated and the paper stopper plate 8 is lifted in response to a signal from a counter or a signal from an operator's push button operation. As a result, the paper 5 conveyed on the conveyor belt 1 is stopped by the paper stopper plate 8 and the paper stopper brush 10, as shown in FIG. At this time, the paper pushing roller 2a is also spaced apart from the conveyor roller 2 to prevent the paper 5 held back by the paper stopping plate 8 and the paper stopping brush 10 from being pushed out.

At the same timing as the above-mentioned paper fastening operation, the lifting platform 3 descends until the top of the paper 5 on the paper stacking platform 4 becomes lower than the insertion position of the drainboard 12, and then stops.

When the paper stacking table 4 stops at its lower end, the rodless cylinder 13 is actuated by the signal at this time, and the drainboard 12 is moved.
is inserted onto the paper stacking table 3. At this time, a part of the paper 5 held on the conveyor belt 1 comes into contact with the drainboard 12, so the drainboard 12 is slowly inserted at a speed that does not damage the paper 5.

When the drainboard 12 is inserted to a predetermined position, the cylinder device 9 is activated, the paper retaining plate 8 is moved downward, the damming of the paper 5 is released, and conveyance of the paper 5 by the conveyor belt 1 is started again. The paper 5 is stacked on the drainboard 12. Note that even when the paper 5 is being held up on the conveyor belt 1, the paper 5 is sent onto the conveyor belt 1 from the sheet cutting device, but the paper stop plate is moving upward with respect to the paper stop brush 10. 8 is inclined toward the upstream side as shown in FIG. 2, so that even if the paper 5 becomes jammed during this time, the paper retaining brush 10 gradually deforms and becomes jammed, and the drainboard 12 is activated. The paper 5 is dammed up during this period.

With the paper 5 stacked on the drainboard 12,
The drainboard device 11 is gradually lowered by its lifting device at a speed that does not disturb the uppermost paper 5. During this time, the paper stacking platform 4 on the elevator platform 3 that has descended is lowered, and the other empty paper stacking platform 4 is
exchange with. In this state, press the drainboard release switch (not shown).

As a result, the lifting platform 3 is raised so that the paper stacking platform 4 is directly below the drainboard 12, and then the lotless cylinder 1
3 is activated and the drainboard 12 is drawn in. As a result, a gap equal to the thickness of the drainboard 12 is created between the lower surface of the paper 5 that was on the top surface of the drainboard 12 and the top surface of the paper stacking board 4, so the paper stacking board 4 rises to the optimal position where the paper 5 flows. do.

On the other hand, the drainboard device 11 that has drawn in the drainboard 12 then rises by the amount that it has descended with the paper 5 loaded thereon, and returns to its home position, thus completing the cycle.

〔Effect of the invention〕

According to the present invention, the drainboard 1 when replacing the paper stacking table 4
2 can be inserted as a paper receiver without damaging the paper 5, and the paper stacking table 4 can be replaced without jamming even when a large amount of paper 5 is discharged during high-speed operation. In addition, products with serial numbers printed on them must be thoroughly inspected for quality reasons such as security printing, etc., and with normal pile equipment, it is extremely difficult to return products that have been taken out for inspection to their original position. However, in the pile device according to the present invention, this is connected to a counter and, for example, 100
By operating the drainboard once for every 0 sheets, it is possible to automatically set the inspection period and sample the products to be inspected.The products that were previously sampled for inspection can be returned to their original locations after the work is finished. This makes it possible to eliminate the need to return the paper to its original position or manually set it out every 1,000 sheets, for example.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a schematic configuration of the main parts of the present invention, and FIG. 2 is an explanatory diagram of the operation of a paper stopper. 1 is a conveyor belt, 3 is a lifting platform, 4 is a paper stacking platform, 5 is paper, and 12 is a drainboard.

Claims (1)

[Claims] At the end of the conveyor belt 1 that conveys sheets of paper 5 in a diagonally stacked manner, a paper stacking platform 4 is mounted on a lifting platform 3 that descends according to the stacking speed of the sheets of paper 5. In a sheet pile device, a sheet pile device is provided with a drainboard 12 provided below the belt 1, which is inserted horizontally above the paper stack 4 when the amount of paper 5 stacked on the paper stack table 4 reaches a predetermined amount. , to the above conveyor belt 1, this conveyor belt 1
A paper stopping mechanism is provided to temporarily hold back the paper 5 on top, and the drainboard 12 is supported by a lifting mechanism that descends according to the stacking speed of the paper 5 when inserted above the paper stacking table 4. A sheet pile device that handles