JPS6011676B2 - Paper flow prevention device in printing machine paper output section - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper flow prevention device that prevents printed paper from shifting during boarding and slatting operations in a paper discharge section of a sheet-fed printing machine.

Sheet-fed printing machines are equipped with a paper ejecting device that ejects and deposits printed paper (hereinafter simply referred to as paper). At the end of the transfer, the paper is released from the scarlet claws and deposited on the paper stacking table. Each time a predetermined amount of paper is accumulated, it is taken out from the paper discharging device. In this case, an operation called board removal is performed in order to take out the paper without stopping the machine. FIG. 1 is a schematic front view of the paper section of the printing machine 9E to explain this board-cutting work, and the paper discharge chain 2 runs between the side frames 1 on both sides from the paper spine side toward the front in the figure. A plurality of pawls 3 are arranged at predetermined intervals, and several paper ejection pawls 4 are arranged in parallel on these pawl shafts 3.

A paper stacking table 5 is located below the transfer end of the paper delivery chain 2.
is provided so as to be able to rise and fall freely, and a pair of left and right boarding guides 6 are installed above it that move in parallel as shown by solid lines and chain lines in the figure by means of a link device. The paper 7 that was transferred to the pseudo paper nail 4 is 8E paper nail 4.
The paper is released from the stack and stacked on the paper stacking platform 5, and the paper stacking platform 5 automatically descends as the stacking progresses. When a predetermined amount of paper 7 has been deposited and is to be taken out of the machine, first move the board guide 6 from the chain line position to the solid line position in the figure and set it, then insert a paper holder (not shown) while watching the timing of the fall of the paper 7. The second side of the falling paper 7 is caught, and then a cutting board 8 prepared in advance is inserted along the groove of the cutting guide 6 from the front side in the figure. Then, when you remove the paper tray,
The falling papers 7 will continue to be deposited on the inserted board 8, so during that time lower the paper stacking table 5 until it touches the floor, take it out, replace it with the air force, and place it on the underside of the board 8. After raising the board until it reaches 1, the board cutting guide 6 is opened outward, and the board cutting work is completed. The general planking work has been explained above, and Fig. 2 shows the state in which the paper is piled up as a result of the boarding work called slatting, which is done to prevent back printing. On the table 5, papers 7 deposited on a board 8 are stacked in several stages with wisteria wood 9 interposed therebetween.

In the case of this slatting, each time a predetermined amount of paper 7 is piled up, the paper stacking platform 5 is lowered a little and a building block 9 is placed. The operation of raising the plate 9 until it comes into contact with the new cutting plate 8 is repeated. However, in the above-mentioned planking and slatting work, prior to inserting the planking board 8, the paper board 5 is lowered by a certain amount more than the thickness of the boarding board 8 within a predetermined period of time, which is called fixed descent. This prevents the paper 7 and the board 8 from interfering with each other, but since the paper 7 that falls does not necessarily settle directly below, when the board 8 is inserted, the paper 7 may fall mid-fall. There was a problem in that the paper 7 in the upper layer that had already been stacked was also shifted and paper waste occurred as a result. . The present invention has been made in view of the above-mentioned points, and includes a plate that forms the same plane as a backing plate that can move forward and backward with respect to the stacked end surface of the cutting board on the insertion machine side of the printed paper stacked on the paper cross-lay. By providing a rotatably pivoted anti-slip body, and when inserting the cutting plate, the backing plate is advanced and the anti-slip body is suspended to support the stacked end surface of the printing paper, thereby moving the printing paper. The present invention provides a paper flow prevention device for a paper discharge section of a printing press configured to prevent the occurrence of paper waste during boarding work by regulating the paper flow.

Hereinafter, its configuration and the like will be explained in detail with reference to embodiments shown in the drawings.

3 to 6 show a paper flow prevention device according to the present invention, FIG. 3 is a side view of a printing press paper discharge section in which the device is implemented, and FIG. 4 is a partially cutaway front view. , FIG. 5 is an enlarged AA sectional view of FIG. 4, and FIG. 6 is a BB sectional view.

In these figures, between the left and right frames 11 of the imitation paper part, there is a pair of left and right board panels whose front end and middle part are partially U-shaped in cross section, and the other part is L-shaped in cross section. A guide 12 is supported by the frame 11 and is constructed to support and guide a cutting board 13 inserted from the front during cutting work.

Further, a paper ejection chain shaft 14 is mounted on the tip of the horizontal member 11a of the frame 11 that extends back and forth above the board guide 12, and a sprocket 15 stuck to this and a sprocket 15 on the printing side A 9E paper chain 16 running in the direction shown by arrow C in the figure is stretched between the sprocket (not shown). Furthermore, a plurality of pawl shafts 17 are arranged at regular intervals on this paper ejection chain 16, and each pawl shaft 17 has several paper pawls 18 arranged in parallel in the direction of the roll. ing. On the other hand, below the board removal guide 12, a paper stacking table 19 is provided with its rear end supported by the frame 11 so as to be able to rise and fall freely, and is automatically raised and lowered according to the amount of paper 20 stacked thereon. It's nicely structured.

Also, between the board removal guide 12 and the paper ejection chain 16, there are a paper abutment 21 and a paper alignment plate 22 that respectively guide the front edge and rear edge of the paper 20 that is released from the paper ejection claw 18 and falls. It is provided. Brackets 2 are provided on the front end surfaces of the vertical portions of the left and right frames 11 and the lower surface of the horizontal member 11a.
The chain rail 25 is formed into a rod shape with a substantially square cross section, and a chain rail 25 is attached with a chain rail 3 and a wheel holder 24, respectively.
One end is supported by inserting iron into a circular hole of a bracket 23, and the end of the pond is fixed to a rail receiver 24 with a bolt 26 and is installed horizontally. Also, this chain rail 25
At the top, a chain 27 is fixed at one end to the rear end of the chain rail 25 by a support rod 28 and at the other end by a bolt 2.
9 and a nut 30, it is attached to the rail receiver 24 and stretched, and is tensioned by screwing the nut 30.
Further, the left and right chain rails 25 are each equipped with a plate bearing 33 consisting of a pair of bearing plates 31 and 32 formed so as to sandwich both sides of the chain rails at their lower ends. This backing plate bearing 33 is provided with a groove that engages with the chain rail 25 to restrict movement in the vertical direction, and the inner surface is finished so that it slides smoothly on the chain rail 25. It is formed.
A caul plate shaft 34 is supported on this caul plate bearing 33 in a slidable and rotatable manner, with both sliding lift limits being regulated by collars 35 and 36 at both ends, and one of the abutment plate shafts At the end of the shaft, there is a handle 37 for sliding and rotating the shaft.
is attached to the shaft.

In addition, a pair of sprockets 38 are positioned between both bearing plates 31 and 32 of the left and right cover plate bearings 33 and are iron-mounted on the cover plate shaft 34, and by providing a sliding key 39 and a long key groove 40. It is formed to be slidable and non-rotatable with respect to the backing plate shaft 34. And this sprocket 3
8 is engaged with the chain 27, and the handle 37
By rotating the backing plate shaft 34, the backing plate shaft 34 rotates together and rolls on the chain 27, and the backing plate shaft 34 is moved in all directions of the chain rail 25, that is, in the distance direction with respect to the rear laminated end surface of the printing paper 20. It is structured so that it advances and retreats. Further, at the rear of the caul plate 34, a guide shaft 41 parallel to this is supported between the left and right caul plate bearings 33.
On the backing plate shaft 34, a pair of backing plate bases 42 formed by a horizontal member 42a in the shape of a horizontally elongated rectangular plate and a pair of legs 42b are iron-mounted so as to be slidable and adjustable. , the leg 42b connects the other circular hole to the guide bag 41.
The cover plate base 42 is fixed to the guide shaft 41 at a sliding adjustment position by a bolt 43 screwed into the leg 42b while allowing the cover plate shaft 34 to slide.

On the upper half of the front end surface of the backing plate base 42, there is a backing plate 44 formed in the shape of a horizontally elongated rectangular plate with the same length as the horizontal member 42a. It is worn. Furthermore, at the end of the backing plate base 42 on the handle 37 side (hereinafter the handle 37 side will be referred to as the operation side), there is a slip stopper formed in an elongated rectangular shape with approximately the same length as the horizontal member 42a and a free end shaped like an arc. 46 is rotatably attached by a bolt 47 whose head is not exposed from the surface. Furthermore, a cam plate stand 48 is iron-mounted on the backing plate shaft 34 and located on the operating side of the backing plate stand 42, and like the backing plate stand 42, this cam plate stand 48 is attached to the guide shaft 41. It is also made of iron, and its movement in all axial directions is restricted by collars 49 on both sides, and it is formed so that it can follow the backing plate base 42 and can be adjusted for super-movement. A cam plate 50 is fixed to the lower surface of this cam plate stand 48 with its tip facing the base end of the stopper 46, and this cam plate 50 holds the backing plate ball 34 on the operation side. When the cover plate shaft 34 is moved to the opposite side, it is pushed away from the stopper 46 and hangs down by its own weight, and when the cover plate shaft 34 is moved to the opposite side, the stopper 46 is pushed so that it converges horizontally as shown by the chain line in FIG. It is structured as follows. The paper discharging operation and the board-cutting operation in the paper discharging device of the printing press configured as above will be explained.

One end of the printed paper 20 is caught by the 9E paper claw 18, and when it is transported by the aE paper chain 16 and reaches the end of the transport, one end is released from the paper ejection claw 18, and at the same time, the other end is The paper is sucked by a suction wheel (not shown) provided near the paper alignment plate 22, falls down and is stacked on the paper mirror stand 19 while being guided along the green edges at both front and back ends by the paper support 21 and paper alignment plate 22. In this case, the paper stacking table 19 detects the upper end surface of the stacked papers 20 and automatically descends. During this normal 9E paper operation, the backing plate 44 will move the paper 2 as shown by the solid line in FIG.
0 from the stacked end face. And paper stacking table 19
When the loaded amount of upper paper 20 reaches a predetermined amount, the board cutting operation is performed as follows.

That is, first, the left and right board cutting guides 12 are moved from the chain line position in FIG. 4 to the solid line position where board cutting is possible by operating a lever (not shown). Next, when the handle 37 is rotated counterclockwise in FIG. In the figure, what is shown by the solid line 20a is the rear end of the paper with the largest size, and what is shown by the chain line 20b is the back end of the paper with the minimum size.
The smaller the size of the paper, the longer the moving distance of the backing plate 44. Then, at the same time that the backing plate 44 touches the stacked end surface of the paper 20, the handle 37, which was located at the chain line position in FIG. 4, is pulled to the solid line position in the figure. As the distal end of the cam plate 50 separates from the base end of the stopper 46, the left and right stoppers 46
At the same time, the paper 20 hangs down along the stacked end surface of the paper 20 due to its own weight. In this case, the heads of the countersunk screws 45 and bolts 47 that fasten the backing plate 44 and the stopper 46 are not exposed, so the backing plate 44 and the stopper 46 are brought into close contact with the stacked end surfaces of the sheets of paper 20. Next, when the fixed amount lowering push button is pressed, the paper bond platform 19 descends for a certain period of time determined by the timer, and after descending, the paper bond platform 19
A gap of several degrees is created between the upper end surface of the board and the board 13 that will be inserted into the board guide 12. In addition, the gap between the upper end of the backing plate 44 and the lower end surface of the board removal guide 12 is set to about 2 to 3 feet, so after a certain amount of lowering, the backing plate 44 will come out several degrees above the upper end surface of the paper 20. It turns out. When the paper holder 19 starts to be lowered using the quantitative lowering pushbutton in this way, insert the paper receiver (not shown) from the front to catch the front end of the falling paper while inserting the stripping board 13 into the stripping guide 12 from the front. do.

When the paper tray is removed after insertion, the paper 20 is placed on the board 13.
They fall on top and are stacked. When the board 13 is inserted, not only the paper 20 falling directly below the board 13 but also some of the upper layers of the stacked papers 20 have not yet settled down and are floating. , these sheets of paper 20 are pushed backward by the wind pressure caused by the insertion of the cutout board 13. However, since the backing plate 44 and the slip stopper 46 are provided here, the movement of the paper 20 is restricted and it does not shift. In addition, the slip stopper 46 is hanging down and this is attached to the laminated paper 20.
The layers are held down to the bottom layer, so the lamination will not collapse. After inserting the cutout plate 13 in this manner, the backing plate 44 is moved back to its original position.

Then, while the paper 20 is stacked on the board 13, the paper stacking table 19 is lowered until it touches the floor, taken out of the machine, replaced with an empty car, and then placed on the lower end of the board 13. Raise it until you support it. Thereafter, the board cutting guide 12 is opened outward to complete the board cutting work. In addition, in the case of the above-mentioned slatting work, the only difference is that crossbars or L-shaped corners are placed between the upper and lower boards, and the rest is the same as the above-mentioned general boarding work, so the explanation thereof will be omitted.

In this case, the functions and effects of the backing plate 44 and the slip stopper 46 are exactly the same as in general planking work. FIG. 7 is a side view of the vicinity of the caul plate as another embodiment of the present invention, and in this embodiment, the sliding adjustment of the caul plate 44 in all directions about the caul plate shaft 34 is performed by operating a handle. This is how it was done.

That is, the guide ratchet 41A is threaded, and the backing plate base 42A and cam plate base 48 that fit together with the guide ratchet 41A are threaded.
A is also threaded. A gear shaft 51 is rotatably supported on the backing plate bearing 33, and a gear 53 that meshes with a gear 52 on the guide shaft 41A and a handle 54 are rotatably mounted on the gear shaft 51. ing. Further, the threads of the guide shaft 41A are right-handed at the locations where they are screwed together with one of the back plate bases 42A and the cam plate base 48A, and the other is a left-handed thread. By doing this, the handle 54
When rotated, both backing plate bases 42A and cam plate bases 48A
The positions of the backing plate 44 and the stopper 46 can be easily adjusted in accordance with the width dimension of the paper 20 by simultaneously approaching or separating them. In each of the embodiments described above, the backing plate shaft 34 to which the backing plate 44 and the stopper 46 are attached is moved back and forth, and the stopper 46 is opened and closed by manually rotating the handle 37 or moving the handle 37 in the axial direction. Although this is configured to be driven by a motor, air, hydraulic, or other fluid cylinder or other driving means.

Further, this paper flow prevention device can be provided not only at the rear of the paper 20 to prevent the paper 20 from shifting in the vertical direction, but also at the side of the paper 20 to prevent the paper 20 from shifting in the left-right direction. . Furthermore, in the above embodiment, the sprocket 38 is
The sprocket 38 may be replaced by a pinion, and the chain 27 may be replaced by a rack. As is clear from the above description, according to the present invention, there is provided a backing plate that can move forward and backward with respect to the laminated end surface on the insertion end side of the cutting board of the printing paper stacked on the paper stacking table of the paper discharge section of the printing machine; A stopper body is provided which is flush with the backing plate and rotatably pivoted thereto, and when the board is inserted during board cutting work, the backing plate is advanced and the stopper body hangs down. By configuring these so that they are aligned with the end surface of the laminated paper, the laminated printing paper or the printing paper falling directly under the laminated board may be displaced or laminated due to the board being inserted or the wind pressure at the time of insertion. Since it does not collapse, it is possible to completely prevent the occurrence of paper waste during board cutting work. Furthermore, since the backing plate and the stopper are not biased by a spring member, there is no damage to the paper due to extra pressure, and since both the backing plate and the stopper move in parallel at the same time, movement is prevented. It is smooth and there is no possibility of the paper slipping on one side. moreover,
Its operation is safe and efficient, as it can be carried out very easily while the machine is running, and the device can be easily installed on existing printing presses.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of the paper discharge section of the printing press for explaining the board removal work, Fig. 2 is an explanatory diagram of the slatting work, and Figs. 3 to 7 are the paper section of the printing machine 9E according to the present invention. Fig. 3 is a side view of the paper section of the printing machine 9E in which this device is implemented, and Fig. 4 is a partially cutaway front view of the same.
Figure 5 is an enlarged AA sectional view of Figure 4, and Figure 6 is the same B.
B sectional view and FIG. 7 are side views of the vicinity of the caul plate axis as another embodiment. 13... Board cutting board, 20... Printing paper, 27
...Chain, 34...Packing plate shaft, 37...
．． Handle, 38... sprocket, 44... patch plate,
46...Slip stop, 48...Cam plate stand, 50
...Cam board. Figure 1 Figure 2 Box Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A backing plate supported so as to be movable forward and backward with respect to the stacked end face with its plane facing the stacked end face on the side where the board is inserted, and this backing plate a driving means for advancing and retracting; a slip stopper formed on the backing plate so as to be flush with the backing plate and rotatably pivoted thereon; A paper flow prevention device for a paper discharge section of a printing press, characterized in that it is provided with a rotation operation means for rotating between a hanging position and a hanging position.