JPS6128580B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bin drum for a collating machine for copying paper, etc., and in particular, it is extremely easy to introduce paper and discharge a group of sheets with aligned pages, and it is compact for collating a large number of copies. The present invention relates to a binding drum for a collating machine for copying paper, etc., which is possible with a simple device configuration.

2. Description of the Related Art Many page alignment devices, so-called sorters, for aligning the pages of copy sheets, etc., have been provided in the past. These conventional sorters have a large number of paper receiving shelves (bins) arranged horizontally in multiple stages, and each time paper is introduced, these shelves are moved in the vertical direction to sequentially receive paper and align the pages, and the present invention There is a system in which the sheets are held in place by a belt and circulated and conveyed to align the pages, which was previously proposed by the inventor in Japanese Patent Application No. 57-9898.

However, with these sorters, for example, in the former case, there are drawbacks such as a large-scale device configuration and difficulty in making it compact, and in the latter case, the number of copies to be sorted is limited by the length of the belt. This method has drawbacks such as being unsuitable for aligning the pages of a large number of copies, and making it difficult to align the edges of the paper due to the generation of static electricity on the paper due to circulation conveyance.

Additionally, rotary drum type collating machines such as those described in Japanese Patent Publication No. 49-35888 have come to be provided, but these machines are capable of introducing paper into a bin drum and ejecting a group of aligned papers. The structure of the paper holding means, etc. for holding the paper is complicated, and it is very troublesome to repair it when it breaks down.

Therefore, the present invention was created to solve the above-mentioned difficulties, and the gist thereof is that in a bin drum for a collating machine for copying paper, etc., a pair of left and right side plates and a circumferential direction between the side plates are provided. It consists of a large number of shelf boards arranged at predetermined intervals, and each shelf board is curved in an arc shape in the circumferential direction so that the bulge part faces outward, and each shelf board is inclined. They are arranged so as to have a substantially spiral cross section, and a paper stopper is formed on the lower surface of the rear end edge of each shelf board, and a paper holding means is attached. Pivot plates are connected to both side edges of the gripper plates which are arranged in a row to form a roughly doglegged cross section, and the pivot plates are pivotally attached to the left and right side plates via pivot pins, and further to the pivot plates. Insert the protruding engagement pin into the long arc-shaped hole centered on the pivot pin of the side plate, and apply the elastic force of the torsion coil spring to the engagement pin so that the gripper plate constantly presses the bottom surface of the shelf board. A clamp release plate is located on the machine frame facing the side plate, parallel to the tangential direction of the bin drum, and inside the rotational diameter of the engagement pin centered on the rotation axis of the bin drum by the pushing length. When the bin drum is at a specific position angle, the gripper board in the shelf is moved away from the shelf board by pressing the engagement pin against the elastic force of the torsion coil spring to set the paper receiving state or the paper group ejecting state. This is due to the fact that it has been formed so that it becomes.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes left and right side plates having a disk shape as a whole, and a large number of shelf boards 2 are arranged at regular intervals on the periphery between the left and right side plates 1. Further, the shelf board 2 is curved into an arc with the same curvature as the peripheral edge of the side board 1. In addition, in the illustrated example, the circumference of the side plate 1 is 12
The shelf boards 2 are arranged at equally divided positions, and each shelf board 2 is inclined with respect to the apparent periphery formed by the tip edge of each shelf 2, that is, the periphery of the side plate 1, so that the cross section is approximately spiral. It is arranged so that.

A paper stopper 3 is fixedly disposed on the lower surface of the rear end edge of each shelf board 2. In the illustrated example, one side of the L-shaped cross-sectional member is fixed to the lower surface of the shelf board 2, but the invention is not limited to this, and a cut may be made in the back end edge of the shelf board 2 to raise a part of the back end edge. It may also be formed by Or the gripper plate 4 described later
A stopper may be formed at the innermost end thereof by raising it in the same manner as described above.

Further, paper holding means is provided on the extension of the rear end edge of each shelf board 2 up to the stopper 3 forming portion. This paper holding means is provided with a gripper plate 4 formed by bending a flat plate into a substantially doglegged shape so as to divide it into a paper guide plate 4A and a paper holding plate 4B. A pivot pin 6 is attached to the pivot plate 5 near the tip edge of the gripper plate 4.
is provided protruding toward the side plate 1, and an engaging pin 7 is provided protruding near the rear edge. A circular arc-shaped elongated hole 8 is formed, from which the engagement pin 7 protrudes outward from the side plate 1, and a torsion coil spring 9 is externally fitted onto the pivot pin 6 protruding from the side plate 1. One end edge thereof is engaged with the engaging pin 7, and the other end thereof is engaged with a locking pin 10 fixed to the side plate 1. Therefore, the elastic force of the torsion coil spring 9 causes the gripper plate 4 to
is operated so as to always press the clamping plate 4B against the lower surface of the shelf board 2.

In this way, the shelf board 2 arranged between the left and right side boards 1,
A space partitioned by the stopper 3 and the gripper plate 4 is used as a paper receiving shelf (bin) 11, and in this way a bin drum 12 is formed.

A clamp release plate 14 is disposed on the machine frame 13 facing the side plate 1 so as to be parallel to the tangential direction of the drum 12 and positioned inward from the rotational diameter of the engagement pin 7 by the pushing length. is at a specific position angle (i.e., the position angle at which the engagement pin 7 is locked to this clamping release plate 14), the shelf plate 2 of the gripper plate 4 in the shelf 11
The pressure on the torsion coil spring 9 is released against the elastic force of the torsion coil spring 9 to bring the paper into the paper receiving state or the paper group ejecting state. Further, when the gripper plate 4 is at a position other than the specified angle, it is pressed toward the shelf board 11 by the torsion coil spring 9, so that the paper can be firmly held within the shelf board 11.

In addition, a plurality of notches 16 are formed in the shelf board 2 along the circumferential direction of the bin drum 12, and are arranged so that the tip of a shelf gate 35 of a paper branching mechanism 30, which will be described later, is located inside the shelf 11. Also, the rotation of the bottle drum 12 is made so as not to be hindered.

By the way, collating machine A, page alignment device (not shown)
Attachment to the machine frame 13 is carried out by mounting the bin drum 12 of the present invention on the frame plate 13A of the machine frame 13. A paper guide plate 17 is provided at the periphery of the bin drum 12 excluding the opening portion of the shelf 11 where the gripper plate 4 is in the gripping release state.
are disposed to cover the openings of each shelf 11 of the bin drum 12 to protect and smoothly guide the sheets during page alignment.

Next, when using the bottle drum 12
A bin drum rotation control panel 18 having the same number of notches 18A as the total number of shelves formed at equal intervals on its periphery is fixed to a rotation shaft 19 disposed at the center of the side plate 1, and an electromagnetic clutch brake 20, a belt transmission means 21, The rotation shaft 19 is linked to the drive motor 23 of the collating machine A via the reduction gear train 22.

Further, a paper branching mechanism 30 is disposed at the opening of the shelf 11 at the position where the gripper plate 4 is released. The branching mechanism 30 includes a conveyance roller 31, a conveyance pressure roller 32 that rotates in opposing contact with the conveyance roller 31, guides the paper to opposing contact portions of the conveyance roller 31 and the conveyance pressure roller 32, and an introduction gate 34 that guides the paper group to the binding mechanism 50 when the paper group with page alignment is ejected from the shelf 11; , a shelf gate 35 that swings only when unnecessary paper is conveyed and guides the paper to the paper ejection roller 62; and a shelf gate 35 that is located above the shelf gate 35 and is used to introduce paper into the shelf 11. 35 for reliable guidance, and on the other hand, when discharging a group of sheets with aligned pages, the presser gate 36 swings upward so that there is no problem in discharging the group of sheets from the shelf 11. It consists of

In the figure, reference numeral 40 denotes an introduction path for guiding paper sent from a copying machine or the like to the branching mechanism 30, and this introduction path 4 is provided with a conveyor belt 41 and a retainer 42 or the like above the conveyor belt 41 so as to be able to swing freely. A pressure ball 4 that is arranged and rotates in opposing contact with the conveyor belt 41
It consists of 3.

Further, numeral 50 in the figure is a binding mechanism disposed above the introduction path 40, which binds the sheets discharged from the branching mechanism 30, opens binding holes, and discharges them into the sheet group receiving tray 51. Its structure includes a conveyance belt 52 for a sheet group, a conveyance pressure roller 54 that presses against an inlet pulley 53 of this conveyance belt 52, a stapler 55 and a perforator 56 disposed at the back of the conveyance belt 52, these staplers 55, It consists of an actuating cam 57 and an actuating rod 58 for actuating the perforator 56, and an ejecting pressure roller 61 with an ejecting roller 60 and a branch gate 59. Note that the paper ejection roller 62 is activated when paper of a size other than the specified size is introduced, or when the paper of the shelf 1
When one or more identical copy sheets are introduced, the sheets are discharged outside the machine frame 13.

Next, paper loading, page alignment, and paper ejection will be explained.

The copied paper is introduced through the introduction path 40 and the branching mechanism 30 into the shelf 11 in which the gripper plate 4 is in the released state. The position of the introduced paper is confirmed by a counter connected to the paper confirmation sensor 37 provided in the branching mechanism 30, and the paper confirmation sensor 3
7 and after a certain period of time has passed, the bottle drum 12
2 rotates counterclockwise in FIG. 2 by the opening length of the shelf 11 (the length in the circumferential direction of the bin drum 12) to introduce the paper to the next shelf 11. The rotational speed of the bin drum 12 is controlled by the reduction gear train 22 so that the circumferential speed of the innermost part of the shelf 11 where the stopper 3 is located is the same as the paper conveyance speed.
The reduction ratio is determined such that the paper does not bend when introducing the paper or discharging a group of papers, thereby preventing the occurrence of paper jams.

By introducing paper sequentially in this way,
In each shelf 11, the copied sheets are stacked in page order and the pages are aligned. Incidentally, when paper is introduced, the shelf gate 35 presses down the previously introduced paper group from above, ensuring a space for introducing the next paper into the shelf 11, and ensuring page alignment.

Further, the group of sheets in each shelf 11 whose pages have been aligned are discharged to the branching mechanism 30 by rotating the drive motor 23 in the reverse direction. In addition, when discharging, the tip of the shelf gate 35 is the shelf 1.
By scooping up the paper group in 1 from below, reliable ejection can be easily performed.

Therefore, according to the bottle drum 12 according to the present invention, the bottle drum 12 has a simple and compact configuration.
In addition, the paper can be introduced and the paper group can be ejected reliably and smoothly. Particularly, the paper holding means is divided into a paper guide plate 4A and a paper holding plate 4B.
Pivot plates 5 are connected to both side edges of the gripper plate 4, which has a roughly doglegged cross section, and the pivot plates 5 are pivotally connected to the left and right side plates 1 via pivot pins 6, respectively. , furthermore,
The engagement pin 7 protruding from the pivot plate 5 is inserted into the arc-shaped elongated hole 8 centered on the pivot pin 6 of the side plate 1, and a torsion coil spring is applied so that the gripper plate 4 always presses the lower surface of the shelf plate 2. The machine frame 13 is formed by applying a resilient force of 9 to the engaging pin 7 and faces the side plate 1.
A clamp release plate 14 is disposed parallel to the tangential direction of the bottle drum 12 and positioned inside the rotational diameter of the engagement pin 7 centered on the rotating shaft 19 of the bottle drum 12 by the pushing length. 12 is at a specific position angle, the gripper board 4 in the shelf 11 is moved to the shelf board 2.
Since the engaging pin 7 is pressed against the elastic force of the torsion coil spring 9 so as to move away from the sheet, the paper receiving state or the paper group ejecting state is achieved, so that the gripper plate 4 can surely hold and release the paper. As a result, a reliable paper receiving state and a paper group discharging state in each paper receiving shelf 11 can be properly obtained. Further, the gripper plate 4 is pressed toward the shelf board 11 by the torsion coil spring 9, so that the paper can be firmly held within the shelf board 11. Moreover, the structure of the paper holding means is extremely simple, is difficult to break down, has excellent durability, and can be easily maintained.

In addition, a large number of shelf boards 2 are arranged on the side plate 1 at regular intervals in the circumferential direction, and each shelf board 2 is arranged so that it has a spiral cross-section and is inclined with respect to the periphery formed by the tip edge of each shelf board 2. Therefore, the shelves 11 can be formed on the circumferential surface of the cylindrical body at regular intervals in the circumferential direction, the shelves 11 can be efficiently arranged, and the bottle drum 12 itself can be easily made compact. Moreover, shelf 11
are arranged on the same circumference, so even if a large number of sheets are held in each shelf 11, there is no need for a large amount of work to move the shelves unlike when the shelves are arranged in multiple stages. The effort required to move it becomes extremely small, making it possible to downsize the drive device and save power. Furthermore, the introduction of paper into the shelf 11 and the ejection of a group of papers can be achieved by a simple operation of rotating the drum, and there is no need for a large-scale device configuration, complicated control, etc. as in the past.

In addition, since each shelf 11 is arranged at an angle with respect to the periphery of the bin drum 12, when discharging a group of sheets, the bin drum 12 is reversed and the shelf gate 35 is positioned within the shelf 11, so that the paper can be easily removed. You will be able to eject groups.

In addition, since the shelf board 2 is bent into an arc shape and arranged so that the swollen part faces outward, the allowable length of paper that can be introduced into the shelf 11 can be increased compared to a flat shelf board. Furthermore, the shelves 11 can be arranged at high density on the periphery, and the bin drum 12 can be made even more compact.

The present invention has a simple structure without requiring a large-scale device configuration in which horizontal paper receiving shelves are arranged in multiple stages and these multi-stage paper receiving shelves are moved vertically. In addition, when a pair of annular belts are brought into contact with each other to sandwich the paper and align the pages, static electricity is generated by circulating the paper, and this static electricity causes paper introduction and paper edge alignment. However, with the device of the present invention, almost the entire sheet of paper can be held within the shelf 11, and the generation of static electricity can be suppressed as much as possible. This eliminates the disadvantages of, for example, difficulty in introducing paper and difficulty in aligning paper edges.

As explained above, according to the present invention, a shelf for a collating machine such as a copying machine can be provided with a simple and compact structure, and furthermore, it is easy to introduce paper and eject a group of papers, and it is possible to provide a shelf for a collating machine such as a copying machine. The device configuration can be simplified, and furthermore, various excellent effects can be obtained, such as reducing the workload for introducing paper and discharging a group of papers, thereby enabling efficient operation.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partially omitted perspective view of the main parts, Fig. 2 is a vertical cross-sectional view of the state in which it is used in a collating machine, and Fig. 3 is a branching mechanism. It is a side view with some parts omitted. A... Collating machine, 1... Side plate, 2... Shelf board, 3... Stopper, 4... Gripper board, 4A... Paper guide plate, 4B
...paper holding plate, 5...pivot plate, 6...pivot pin, 7...
Engagement pin, 8... Long hole, 9... Torsion coil spring, 1
0...locking pin, 11...shelf, 12...bin drum, 1
3... Machine frame, 13A... Frame plate, 14... Clamp release plate, 1
6... Notch, 17... Paper guide plate, 18... Bin drum rotation control board, 19... Rotating shaft, 20... Electromagnetic clutch brake, 21... Belt transmission means, 22... Reduction gear train, 23... Drive motor, 30... Branching mechanism , 31
...conveying roller, 32...conveying pressure roller, 34...introduction gate, 35...shelf gate, 36...pressing gate,
37...Paper confirmation sensor, 40...Introduction path, 41...Transport belt, 42...Retainer, 43...Pressure ball, 50...Binding mechanism, 51...Paper group receiving tray, 52
... Conveyance belt, 53 ... Entrance pulley, 54 ... Conveyance pressure roller, 55 ... Stapler, 56 ... Perforator,
57... Operating cam, 58... Operating rod, 59... Branch gate, 60... Discharge roller, 61... Conveyance pressure roller,
62... Paper ejection roller.

Claims (1)

[Claims] 1. A bin drum for a collating machine for copying paper, etc. consists of a pair of left and right side plates and a number of shelves arranged at predetermined intervals in the circumferential direction between the side plates. The bulges are curved in an arc shape in the circumferential direction so that the bulges face outward, and each of the bulges is inclined so that the cross section has a substantially spiral shape,
A paper stopper is formed on the lower surface of the rear end edge of each shelf board, and a paper holding means is provided. Pivot plates are connected to both side edges of the plate, and the pivot plates are pivotally connected to the left and right side plates via pivot pins, and the engagement pins protruding from the pivot plates are connected to the pivot pins of the side plates. The gripper plate is inserted into an arcuate long hole centered on the shelf plate, and is formed by applying the elastic force of a torsion coil spring to the engagement pin so that the gripper plate constantly presses the lower surface of the shelf plate. When the clamp release plate is arranged parallel to the tangential direction of the bind drum and located inside by the pushing length from the rotational diameter of the engagement pin centered on the rotation axis of the bind drum, and the bind drum is at a specific position angle. Copy paper, etc., characterized in that the gripper board in the shelf is formed so as to move away from the shelf board by pressing an engagement pin against the elastic force of a torsion coil spring to enter a paper receiving state or a paper group ejecting state. Bin drum for collating machine.