JPH04341457A - Paper piece discharging device - Google Patents

Abstract

PURPOSE:To sort paper pieces discharged from printing machines, folding machines, etc., into two directions. CONSTITUTION:While plural receiving parts 3 are moved circularly in the vertical direction by the rotation of an annular belt-like body 2 in a receiving part assembly 4, paper pieces S discharged from a paper piece discharging part A are received on the receiving parts 3, by one piece for each receiving part. The paper pieces S are positioned by a guide 6 according to the lowering of the receiving parts 3 and held on the receiving parts 3 by means of a clamp mechanism. As the receiving parts 3 are lowered further, the clamp mechanism for each receiving part 3 is released alternately to drop the paper pieces S on a belt conveyor 9 under it at an interval of one paper piece. The remaining paper pieces S are released from the receiving parts 3 by unclamping of the clamp mechanism immediately after the receiving parts 3 starts to rise, supported by a paper piece stopper 10 and, as the receiving parts 3 are raised, pushed outward by a guide 11 to be discharged from a discharging part 12.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper ejection device used in conjunction with a printing press, a folding machine, or the like.

0002

[Prior Art] Conventionally, paper ejecting devices installed in printing machines, folding machines, etc. are composed of a so-called impeller, which has a plurality of arc-shaped receivers attached around the impeller, and a discharging conveyor connected to the impeller. The paper sheets, which are intermittently supplied from a printing machine or a folding machine, are received by a receiver around the impeller and decelerated, and then dropped onto a discharge conveyor and discharged in a sashimi-like arrangement. It is supposed to be done.

0003

[Problems to be Solved by the Invention] By the way, paper pieces from printing machines and folding machines are fed at a very high speed, so when post-processing is performed in-line, processing machines with slow processing speeds have a problem with the feeding speed. I can't keep up. Therefore, it is conceivable to divide the paper strips into two rows and perform post-processing in parallel with two machines, but with the above-mentioned conventional paper strip ejection device,
Since paper pieces from a printing machine or a folding machine are continuously discharged directly onto a discharge conveyor via an impeller, there is a problem in that they cannot be sorted in two directions. Another problem with conventional paper ejecting devices is that it is not possible to extract specific pieces of paper for sampling or removal of defective products.

The present invention has been made in view of the problems of the prior art, and its purpose is to:
To provide a paper piece discharging device capable of sorting sheet-like objects in two directions.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the paper ejecting device of the present invention has a plurality of plate-shaped receivers attached outwardly at regular intervals to an annular band-shaped body that circulates in the vertical direction. a positioning guide that brings the paper pieces fed to the receiving part to a fixed position as the receiving part descends immediately after the receiving part starts to descend, and a positioning guide for each receiving part. The attached and positioned piece of paper is clamped on the receiving part, and when the receiving part is tilted downward, the paper piece is selectively opened and then returned to the clamped state in order to allow any piece of paper to fall from the receiving part. There is a clamp mechanism that opens immediately after the receiving part starts to rise and releases the remaining pieces of paper, a paper piece stopper that stops the remaining pieces of paper released from the clamp mechanism on the back side of the next receiving part, and a paper piece stopper on the back side of the receiving part. It is characterized by consisting of an expulsion guide that pushes out the held pieces of paper outward as the receiving part rises, and a discharge part that discharges the pushed out pieces of paper as the receiving part rises.

[0006]

[Operation] Pieces of paper supplied from a printing machine, folding machine, etc. are fed one by one onto the receiving section immediately after the receiving section starts descending.
As the receiver descends, the inserted paper pieces are brought to a fixed position by the positioning guide, and the positioned paper pieces are lowered while being clamped on the receiver by the clamp mechanism. Next, when the receiving part was tilted downward, the clamping mechanism was selectively opened and returned to the clamping state, allowing any piece of paper to fall from the receiving part, and the remaining pieces of paper were clamped by the clamping mechanism. In this state, it starts to rise together with the receiving part. Immediately after the receiving part passes through the folding point and rises, the clamping mechanism becomes open, and the remaining paper pieces are released from the clamping mechanism and remain on the back side of the next receiving part by the paper piece stopper. Thereafter, the pieces of paper remaining on the back side of the receiving section are pushed out from the expulsion guide as the receiving section rises, and are sequentially discharged from the discharging section.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram showing an embodiment of a paper ejection device according to the present invention. As shown in the figure, a paper piece ejecting device 1 is installed in a continuous manner with a paper ejecting unit A of a printing machine, a folding machine, etc. It is structured around a receiving part assembly 4 in which parts 3 are attached outwardly at regular intervals.

As shown in FIG. 2, each receiving part 3 in the receiving part assembly 4 is plate-shaped, and is attached at right angles to the band-shaped body 2 made of an endless chain by a stay 3a at the rear end. The band-shaped body 2 is hung by a rotatably driven lower sprocket 5a and an upper free sprocket 5b so as to circulate in the up and down direction in each receiving part 3. The speed of the circulation movement is controlled to such a speed that the receiving section 3 is fed one pitch each time a portion of the paper strip S is supplied from the paper strip supply section A.

Further, near the base of the receiving portion 3, a backing plate 3b for positioning the piece of paper S is erected. Further, the paper piece ejecting device 1 is provided with a rod-shaped positioning guide 6 in order to bring the paper pieces S closer to the backing plate 3b as the receiving part 3 descends. Notches 3c and 3d are formed to avoid interference with 6. Note that the positioning guide 6 is attached to these notches 3.
The two are installed in parallel so that they pass through c and 3d.

[0010] Furthermore, a clamping part 7 constituting a clamping mechanism is provided on the receiving part 3 near the rear end, and this clamping part 7 has a pressing plate 7a and a support rod 7, as shown in FIG.
b, a support shaft 7c, a pedestal 7d, a quick arm 7e, and a cam follower 7f, and as shown in FIG.
As the cam follower 7f descends, the cam follower 7f is guided by the cam follower guide rail 8 and rotates about the support shaft 7c as a fulcrum, and the press plate 7a clamps the piece of paper S on the receiving part 3. In this way, the clamp mechanism is composed of the clamping part 7 and the cam follower guide rail 8.

As shown in FIG. 4, the cam follower guide rail 8 has a recess 8a that gently curves outward in a part of the groove at a position where the receiving part 3 descends and begins to change direction and is slightly inclined. Then, the cam follower 7b is selectively moved to the position shown in FIG. 5 or FIG.
In the position shown in FIG. 5, the paper piece S is passed while being held between them, and in the position shown in FIG. That's what I do. In this embodiment, the fallen pieces of paper S are conveyed by the belt conveyor 9 below. In addition, the cam follower guide rail 8 is
The receiving part 3 changes direction at the lower end and has a shape that changes so that the curvature becomes slightly larger before and after the section α where it is in a slightly elevated position, and when the cam follower 7f passes through this section α, the pressing plate 7a It is in a lifted state and the piece of paper S on the receiving part 3 is released.

[0012] The paper ejecting device 1 is provided with a bar-shaped paper stopper 10 for catching the paper S released from the receiving portion 3 immediately after the receiving portion 3 starts to rise.
There are two installed at positions corresponding to 3d. Furthermore, two triangular plate-shaped expulsion guides 11 are installed in the section where the receiving part 3 rises, corresponding to the notches 3c and 3d of the receiving part 3. Accordingly, the pieces of paper S on the receiving section 3 are gradually pushed out toward the pull-up conveyor 12a of the discharging section 12.

The above-mentioned discharge section 12 includes a pulling conveyor 12a vertically arranged adjacent to the tip of each receiving section 3 on the side where each receiving section 3 of the receiving section assembly 4 rises, and this pulling conveyor 12a. It consists of horizontal nip belts 12b and 12c combined on the upper part of nip belt 12a. The speed of the pulling conveyor 12a is set faster than the rising speed of the receiving part 3, and the speed of the nip belts 12b, 12c is set to be the same as or higher than the speed of the pulling conveyor 12a. ing. However, the speeds of the nip belt 12b and the nip belt 12c are set to be the same.

Next, the operation of the paper ejecting device having the above structure will be explained. In FIG. 1, a piece of paper S is conveyed from a printing machine or a folding machine to a paper piece discharging device 1 while being nipped by a nip belt of a paper piece discharging section A. Note that normally, the pieces of paper S, which are signatures, are conveyed with their spines facing forward as shown in the figure. The conveyed paper pieces S are forcefully thrown one by one onto each receiving section 3 from the end of the nip belt, and are placed on the receiving sections 3 in a state in which they hit the backing plate 3b and are somewhat bounced. After that, as the receiving part 3 is lowered, the positioning guide 6
is driven toward the backing plate 3b. As shown in FIG. 3, the piece of paper S positioned at a fixed position is guided by the cam follower 7f of the holding part 7 by the cam follower guide rail 8 as the receiving part 3 is further lowered as shown in FIG. The press plate 7a presses the book S on the receiving part 3 in the vicinity of the back bag, thereby holding the piece of paper S therebetween.

Thereafter, the receiving portion 3 further descends, and the cam follower 7f of the holding portion 7 reaches the chevron-shaped member 8b of the cam follower guide rail 8. In this embodiment, each receiving portion 3 passes through this portion. When this happens, the chevron member 8b is controlled to move alternately to the positions shown in FIGS. 5 and 6. When the chevron-shaped member 8b is in the position shown in FIG. 6, the cam follower 7f passes through this portion in the state shown by the dotted line in FIG. The upper piece of paper S is dropped onto the belt conveyor 9 below. Furthermore, when the chevron member 8b is in the position shown in FIG. 5, the cam follower 7f
passes through this portion in the state shown by the dotted line in FIG. 5, and the piece of paper S on the receiving portion 3 is guided along the cam follower guide rail 8 to the section α while being held by the pressing plate 7a. Next, as the cam follower 7f passes through the section α, the pressing plate 7a is lifted up, and the piece of paper S is released from the pressing plate 7a and slides down to the piece of paper stopper 10. After that, as the receiving part 3 rises, it is moved by the expulsion guide 11. The paper piece S is moved to the end of the receiving part 3, and the leading edge of the paper piece S is lifted upward by the pull-up conveyor 12a and rises, and when it reaches the upper end of the pull-up conveyor 12a, the paper piece S
The tip of the paper is pulled in by the nip belt 12b, and the paper piece S
is held between the nip belts 12b and discharged. In this way, the pieces of paper S supplied one by one from the paper piece supply section A to each receiving section 3 of the receiving section assembly 4 are discharged in a state in which they are alternately distributed on the lower belt conveyor 9 and on the discharge section 12. Ru.

[0016] In the above embodiment, an example was explained in which the paper pieces S were divided into two groups, but the paper piece ejecting device 1 of the present invention can also be used for sampling, rejecting defective items, etc. can. In this case, the actuator is actuated by the operator's operation or a defective signal from the inspection device, and the chevron-shaped member 8b is moved from the position shown in FIG. 5 to the position shown in FIG.
What is necessary is to drop it onto the belt conveyor 9 below and take it out.

[0017]

As explained above, according to the paper discharging device of the present invention, the paper strips supplied onto the receiving section that circulates in the vertical direction are selectively dropped downward, and the remaining paper strips are transferred to the discharging section. By discharging the paper from the printing machine or folding machine, it is possible to sort the pieces of paper that come out intermittently from the printing machine or the folding machine into two directions. In addition, sampling and removal of defective products can be performed by dropping and picking out specific pieces of paper.

[Brief explanation of drawings]

FIG. 1 is a schematic side view of a paper piece discharge device as a first embodiment of the present invention.

FIG. 2 is a partially enlarged perspective view of the receiving portion.

FIG. 3 is a partially enlarged side view for explaining the operation of the clamp mechanism.

FIG. 4 is a lower side view of the cam follower guide rail that constitutes the clamp mechanism.

FIG. 5 is an explanatory diagram showing the cam follower guide rail in its clamping operation position.

FIG. 6 is an explanatory diagram showing the cam follower guide rail in its open operation position.

[Explanation of symbols]

1 Paper ejecting device 2　Strip-shaped body 3 Receiving part 4 Receiving part assembly 6 Positioning guide 10 Paper strip stopper 11. Expulsion guide 12 Discharge section S piece of paper

Claims (1)

[Claims] 1. A receiver assembly comprising a plurality of plate-shaped receivers attached outwardly at regular intervals to an annular band-shaped body that circulates in the vertical direction; a positioning guide that brings the pieces of paper supplied to the receiver to a fixed position as the receiver lowers; and a positioning guide that is attached to each receiver and clamps the positioned paper pieces on the receiver,
When the receiver tilts downward, it selectively opens to allow any piece of paper to fall from the receiver, and then returns to the clamping state, and immediately after the receiver starts to rise, it opens and releases the remaining paper pieces. A clamp mechanism that releases the paper, a paper stopper that holds the remaining paper pieces released from the clamp mechanism on the back side of the next receiving part, and an expulsion guide that pushes out the paper pieces that are stuck on the back side of the receiving part outward as the receiving part rises. and a discharge section that discharges the pushed-out paper strips in the process of the receiving section rising.