JPH07112860A - Printed book accumulating device - Google Patents

Abstract

PURPOSE:To surely sort printed books into a plurality of bundles each having a predetermined number without damaging the books, by providing partition plates which can be moved in parallel with an accumulating table, and which are adapted to be inserted so as to sort the books accumulated upright in a row on the table. CONSTITUTION:When a row 11 of accumulated books has a predetermined number, a partition plates 6a, 6b are started to vibrate in a condition in which the partition plates 6a, 6b are made into integrally close contact with each other. The partition plates 6a, 6b are projected above an accumulating table 4 into the row 11 of accumulated books while they vibrate so as to sort the books in the row 11. After the insertion of the partition plates, since the books 10 are shifted successively, the partition plates 6a, 6b are moved in association with an increase in the number of books in the row together with a support member for supporting the trailing end part of the row 11. Thereafter, the opening and closing operation of the partition plates 6a, 6b is carried out so as to support the books on the left side of the row while the books on the right side of the row are moved rightward by the partition plate 6b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a book stacking apparatus used for stacking printed books discharged from an offset rotary printing machine or a folding machine to form a bundle of printed books.

[0002]

2. Description of the Related Art Generally, a printing press discharged from a rotary printing machine or a folding machine is discharged in a so-called sashimi-like state on a conveyor so that the printed books are gathered in a misaligned state. And
Usually, the printed sheets are collected and bundled into a bundle of printed sheets for convenient transportation and handling in a later process. Therefore, conventionally, a book stacking apparatus as shown in FIG. 3 has been used. This stack of printing sheets is arranged such that a printing sheet conveyed in a sashimi-like state by a conveyor 14 is placed between a rear belt row 1 and an opening belt row 2 which rotate in opposition to each other in the vertical direction. The sheet is sandwiched and introduced in an upright state on a stacking table 4 having an escape belt 5, and on the stacking table 4, the print sheets are sequentially stacked between the back side belt row 1 and the retreating support member 3 to stack the print sheets. The stack of the printed books is divided into a predetermined number of sheets to form a printed book bundle, and the formed printed book bundle is then bound or transferred into a case as required. It

In the above-mentioned conventional book stacking apparatus, the following means are provided to distinguish the stacking row of the upright printed books formed on the stacking table 4. One is to provide a set-off mechanism that temporarily blocks the flow of sashimi-conveyed brushes, thereby forming a gap without a brush in the sashimi row and dividing the stacking row of brushes. Yes, and nowadays, a book stacking device using this set-cutting mechanism is in the mainstream. In addition, a set of spatula-shaped skewers is provided so as to protrude from the lower side of the stacking table 4, and the spatula-shaped skewers are inserted into the stacking row of the stacked upright-printed books so that a predetermined number of copies are obtained. There is also used a book stacking apparatus that divides and forms a book stack.

[0004]

In the former one of those described in the prior art, when the flow of the book block is blocked by the severing mechanism, a dango of the book block is generated in the sashimi row, so that the accumulated prints are carried out. Disturbance of alignment occurs in the collection line of books,
In addition, since the sashimi thickness changes before and after the gap that blocks the sashimi row, the stacking pressure of the stack of prints changes significantly, which also causes a problem in the alignment of the stack. there were. On the other hand, in the latter method, the brush may be damaged at the stage of inserting the spatula-shaped skewer, and it is necessary to remove the brushes at both ends in a later step, and the separated stacking row There was a problem that the number of copies of the printed book in was inaccurate.

The present invention has been made in view of such drawbacks and problems of the conventional book stacking apparatus, and an object of the present invention is to form a stack of well-printed book stacks. SUMMARY OF THE INVENTION It is an object of the present invention to provide a book stacking apparatus that can surely divide a stacking row into a predetermined number of copies and form a stack of books without damaging the books at both ends.

[0006]

The above object can be achieved by the present invention described below. That is, (Claim 1) In a stacking apparatus for stacking prints, the prints that are gathered in an overlapping manner and transferred in a flowing form are continuously introduced onto a stacking table and are dammed and stacked as a stacking row of the stands in a standing state. Move parallel to the table, stop at a predetermined position, and insert / remove the stacking rows of the printed books stacked upright on the stacking table to separate them, and widen the spacing between the stacking rows separated on both sides. A printed book stacking apparatus comprising at least one pair of partition plates configured to open and close. (Claim 2) The pair of partition plates vibrate during the loading and unloading, and the trajectory of the partition plate tips, which is a combination of the vibration and the loading and unloading, enters the stacking row of the books at an angle of 30 degrees or more with respect to the stacking table surface. The printed book stacking apparatus according to claim 1, wherein: (Claim 3) The pair of partition plates according to any one of claims 1 and 2, wherein the pair of partition plates are vibrated at a frequency equal to or higher than the natural frequency of elastic vibration of the stack rows on both sides which come into contact with each other by the insertion and removal.

[0007]

According to the book stacking apparatus of the present invention, the partition is inserted so that the stacking rows of the stack of books, which are moved in parallel with the stacking table, stop at a predetermined position and stand up on the stacking table, are sectioned. Since the plates are put in and taken out, the number of printing plates can be set to a predetermined number in one of the divided stacks of the printing plates. Further, the pair of partition plates vibrate during the loading and unloading, and the trajectory of the partition plate tip, which is a combination of the vibration and the loading and unloading, enters the stacking row of the books at an angle of 30 degrees or more with respect to the stacking table surface. The stack of printed books can be surely divided by the tip of the plate, and there is no disturbance of the stacked series or damage to the printed books. Further, since the partition plate vibrates at a frequency equal to or higher than the natural frequency of the elastic vibration of the collection row of the two-sided brushes that come into and out of contact with each other, the two-sided books that come into and out of contact with the partition plate may contact each other at a certain moment. Since they are separated from each other, the frictional force is small, and therefore the surface of the printing plate is not damaged. Further, since there is at least one pair of partition plates to open and close so as to widen the interval between the stacks of the prints divided on both sides, the stacks of the prints that are divided in the open state are a single bundle of prints. As a result, it can be transferred to a subsequent process for binding and the like by using a takeout hand or the like. In the following, a stack of printed books is divided into a predetermined number of sheets, which will be referred to as a printed book bundle.

[0008]

EXAMPLES Next, preferred embodiments of the present invention will be described with reference to examples. FIG. 1 is a view for explaining the whole of the book stacking apparatus of the present invention. In FIG. 1, 1 is a back side belt row, 2 is an open side belt row, which is sandwiched between both belt rows, and a printing book (not shown) is transported between them. 3 is a support member, 4 is a stacking table, 5 is an escape belt, and the printing book stands upright on the stacking table 4 and is aligned.
A moving force acts on the support member 3 side by the escape belt 5, and is supported by the support member 3. Reference numerals 6a and 6b are partition plates for partitioning a stack of printed books. The partition plate 6a is located on the back belt array 1 side, and the partition plate 6b is located on the support member 3 side. Reference numeral 7 is a guide plate, 8 is an extrusion plate, and 9 is a bundler.

In the above-mentioned structure, the printed books which are gathered on the belt conveyor and are transferred in the form of being gathered in an overlapping manner are sandwiched between the back side belt row 1 and the open side belt row 2 and erected on the stacking table 4. It is collected in the state where it was done. In the initial state of stacking, the partition plates 6a and 6b are retracted below the stacking table and stopped at the standby position. Also,
The support member 3 is located near the back side belt row 1,
As the printed books are accumulated and the total length of the accumulation column increases, the retracted books move backward. The support member 3 is moved by a moving mechanism such as a linear guide, and the amount of movement is controlled so as to support the stack of print books at a predetermined pressure. The pressure is detected by a sensor such as a load cell.

When a predetermined number of stacks of printed books are obtained, the partition plate 6 is used to divide the stacked rows to form a bundle of printed books.
When a and 6b are overlapped with each other, they vibrate in an integrated state and move upward while being inserted into the stacking row. The partition plates 6a and 6b have a disk-shaped thin end so as to prevent the partition plates 6a and 6b from being caught on the lower end of the printing book. Even after the partition plates 6a and 6b have been inserted, the stack of printed books continues to increase, so that the support member 3 moves backward. Since the partition plates 6a and 6b also retreat in synchronism with the support member 3, they do not hinder the formation of the next stack of printed books. The partition plate 6a and the partition plate 6b can be independently moved by a moving mechanism including a linear guide or the like.

The predetermined number of brush bundles held by the support member 3 and the partition plate 6b move to the rear of the stacking table 4 while being gripped, and are continuously stacked between the partition plate 6a and the back side belt 1. Separated from the collection of printed books. In the state where the support member 3 is stopped at the stop position at the rearmost end of the stacking table 4, the bundle of printed books is accommodated inside the guide plate 7 above the stacking table 4, and the guide plate 7 moves downward to move the partition plate 6b. By retracting the sheet under the stacking table 4, the printing plate bundle is gripped by the support member 3 and the guide plate 7. In this state, the pushing device is driven to move the printing plate bundle toward the side bundler 9 by the pushing plate 8. Next, the guide plate 7 moves above the stacking table 4, the support member 3 moves to the partition plate 6a side, and the partition plate 6a
Is retracted under the stacking table 4, so that the stacking column of the printed books is supported by the support member 3. Furthermore, the partition plates 6a and 6b move to a predetermined standby position. By repeating the above process, it is possible to divide the stack of print sheets and continuously form a predetermined number of print sheet bundles.

FIG. 2 is a view for explaining a mechanism for dividing a stack of print books in order to make a predetermined number of print stacks in the print stacking apparatus of the present invention. Fig. 2 (A) shows the state before division,
FIG. 2B shows the state after the division. In FIG. 2, reference numeral 10 is a sashimi-like printed book that is transported by the back side belt 1 and the release side belt 2, 11 is a stacking row of the printing books that are stood upright on the stacking table 4, and 12 Is a bundle of printing sheets divided by the partition plates 6a and 6b. Further, 13 is arranged above the stacking row 11 of the printed books, and the partition plate 6 is provided.
This is a top plate for preventing the stacking row 11 from being disturbed by the lifting of the printing book when inserting a and 6b into the stacking row.

In FIG. 2, the partition plates 6a and 6b are thinned at their tips so as to have a disk shape so as to prevent them from being caught on the lower end of the printing book. Each of the partition plates 6a and 6b is configured to be independently movable in a direction parallel to a direction in which a stack of printed books is formed. Therefore, the partition plates 6a and 6b move in close contact with each other as a unit. It is also possible to open and close separately. The partition plates 6a and 6b can be retracted below the accumulation table 4 as shown in FIG.
Further, as shown in FIG. 2 (B), it is configured so that it can be projected above the stacking table 4. Further, the partition plates 6a and 6b are configured so as to be able to vibrate in a direction parallel to the direction in which a stack of printed books is formed.

When the stacking row 11 of the printed books reaches a certain number, the partition plates 6a and 6b start to vibrate in a state where the partition plates 6a and 6b are in close contact with each other at a predetermined standby position. To do. This standby position is a position where the partition plates 6a and 6b are retracted below the stacking table, and is a position set so that the partition plate 6b and the bundle of printing plates held by the support member 3 have a predetermined number. Is. The partition plates 6a and 6b that start to vibrate and continue to vibrate project above the stacking table 4 at a predetermined timing and go to the stacking row 11
Is inserted into the stacking column 11 to divide the stacking column 11. When the insertion is completed, the partition plates 6a and 6b stop vibrating. The stop position is preferably the center position of the vibration amplitude. Partition plate 6 during insertion
A and 6b are vibrated by a stacking book and a partition plate 6a.
This is to reduce the frictional force with 6b to prevent damage to the printing book due to the frictional force.

Even after the insertion, the sashimi-like brushes 10 are continuously transferred, so that the stack 11 of the brushes continues to increase. Therefore, the partition plates 6a and 6b and the support member 3 move in accordance with the increase of the stacking row 11. Normally, the partition plates 6a and 6b and the support member 3 move in a direction away from the back belt 1 while maintaining a constant distance therebetween. Following that state, then the partition plate 6
The a and 6b perform opening and closing operations, the partition plate 6a supports the stacking row 11 of the prints, and the partitioning plate 6a grips the print stack 12 together with the support member 3 and moves toward the rear end of the stacking table 4.
Since this operation and the subsequent operations have already been described, they are omitted here.

FIG. 3 is a view showing a structure for driving the partition plate 6. In FIG. 3, 6 (a) and 6 (b) are each a pair of partition plates. Partition plate 6 is linear guide 19
It is supported so that it can be moved to the left and right.
Reference numeral 16 denotes a stage, which can be stopped vertically and horizontally in a desired pattern by the left and right ball screws 14 for moving left and right and the up and down ball screws 15 for moving up and down. A vibration motor 17 is installed on the stage 16, and the vibration motor 1
An eccentric cam 18 is attached to the shaft of 7. The movement of the eccentric cam 18 is transmitted to the partition plate 6 (a) and is oscillated in the left-right direction.

The partition plate 6 (a) has a connecting claw 21.
The connecting claw 21 is connected to the connecting cylinder 20 by a crank mechanism.
Is connected with. By the expansion / contraction operation of the connecting cylinder 20, the connecting claw 21 can integrate the partition plate 6 (a) and the partition plate 6 (b) or can be individualized. Further, in FIG. 3, reference numeral 23 is a pressing cylinder for compressing and moving the divided bundle of printed books as a unit. The tip of the rod of this press cylinder 23 is the partition plate 6
The partition plate 6 (b) can be moved by the press cylinder 23 so as to support the one surface of the bundle of books by the partition plate 6 (b). Further, there is an assobi 22 in this connecting portion, and when the partition plate 6 (a) and the partition plate 6 (b) integrally vibrate, the vibration is not transmitted to the press cylinder 23. There is.

Since the structure for driving the partition plate 6 is constructed as described above, the stacking row of the printed books can be divided at desired positions on the stacking table 4.
Further, it is possible to move the bundle of books by gripping the partition plate 6 (b) and the support member 3. Further, the partition plate 6 (a) and the partition plate 6 (b) can be moved up and down while being integrally vibrated, and can be moved in and out of the stacking row of the printed books, or can be moved in and out without vibrating. it can.

FIG. 4 is a view showing the locus of the tip of the partition plate 6 when the partition plate 6 is vibrated and is moved in and out of the stacking row of the prints. In the figure, the locus is a sine wave, and W
Is its amplitude. The locus of the tip of the partition plate 6 when the partition plate 6 is moved in and out of the stacking row while vibrating the partition plate 6 is
The angle with respect to the plane parallel to the stacking table should be 30 degrees or more. This angle is the frequency of the partition plate 6, the amplitude,
It is determined by the rising speed of the partition plate, and these values are set so that this angle is 30 degrees or more. If this angle is 30 degrees or less, the stacking line of the printed book is disturbed and the printed book is damaged, which is not preferable.

For example, the rising speed is 200 mm / sec,
When the frequency is 10 Hz, the appropriate amplitude W is 8.66 mm or less. When the ascending speed is 200 mm / sec and the amplitude W is 1.0 mm, the appropriate vibration frequency is 86.6 Hz or less. When the frequency is 10 Hz and the amplitude W is 10.0 mm, 230 mm / sec or more is appropriate.

As described above, the partition plates 6a and 6b vibrate, and this vibration is divided into a collection row 11 of left and right printed books.
It is more preferable to select a vibration mode such as a vibration amplitude and cycle that does not follow the vibration. The reason is that, when the stack 11 of left and right printed books does not follow the vibration, the printed books and the partition plates 6a and 6b make contact at a certain moment in the vibration cycle, and at a certain moment they become non-contact and become frictionless. This is because the printed book will not be damaged by. On the contrary, when the stack 11 of the left and right printed books follows the vibration, the printed books and the partition plates 6a and 6b are always in sufficient contact in the vibration cycle, and the printed books are damaged by the frictional force. This is because.

The vibration mode of the partition plates 6a and 6b can be determined by the response of the stacking row 11 of the left and right plates to the vibration of the partition plates 6a and 6b. The stack 11 of printed books normally responds to a mechanical external force such as vibration as an elastic body. If the collection sequence 11 of the printed books is represented by a mechanical model, it can be represented as a mechanical model in which a mass element and a spring element are combined, and a dashpot element can be added as a more precise mechanical model. it can. Although a method of analyzing such a mechanical model is known, its description is omitted, but the stack sequence 11 of the actual printed book has a natural frequency.

The natural frequency means that when the external force vibrates at the natural frequency or less, the stack 11 of the printed books follows the vibration, but when the external force vibrates at the natural frequency or more, the stacked natural books. The row 11 is the frequency at which the vibration does not follow the vibration. Normally, the response becomes maximum when the external force matches the natural frequency, but when the external force exceeds the natural frequency, the response rapidly decreases and the movement as the external force does not follow.
When the partition plates 6a and 6b vibrate, the partition plates 6a and 6b are vibrated at a frequency equal to or higher than the natural frequency of the stacking row 11 of the left and right books.
More preferably, it is vibrated at a frequency that is at least twice the natural frequency.

Although the present invention has been described with reference to the embodiments, the present invention can be implemented in various modes within the scope of the spirit thereof. For example, any method may be used for handling the bundle of prints after sorting, as long as it is a stacking apparatus for the prints, which introduces the prints onto the stacking table and blocks and continuously stacks the stacks of the prints. That is clear. The same applies to the handling of unprinted printed books. Further, the printed book is not limited to the printed book discharged from the offset rotary printing machine, and the present invention can be applied to a carton or a bag discharged from the processing machine. It is easy from the explanation and the copybook should be widely interpreted. Needless to say, the present invention includes various embodiments as described above.

[0025]

As described above, according to the present invention, the stack of prints is maintained, the stack of prints is not disturbed, and both ends of the stack of prints are not damaged, and the stack of prints is reliably divided. Provided is a stacking apparatus for a printed book.

[Brief description of drawings]

FIG. 1 is a diagram for explaining the entire book stacking apparatus of the present invention.

FIG. 2 is a diagram illustrating a mechanism for dividing a stack of print books in order to form a stack of print books in the print book stacking apparatus of the present invention.

FIG. 3 is a diagram showing a structure for driving a partition plate 6.

FIG. 4 is a diagram showing a locus of the tip of the partition plate 6 when the print sheets are taken in and out of the stacking row while vibrating the partition plate 6.

FIG. 5 is a diagram illustrating a conventional book stacking apparatus.

[Explanation of symbols]

 1 Back-side belt row 2 Release-side belt row 3 Supporting member 4 Stacking table 5 Escape belt 6 Partition plate 7 Guide plate 8 Extrusion plate 9 Bandler 10 Sashimi-like printed book 11 Stacked row of printed books 12 Printing book bundle 13 Top board 14 Ball screw for left and right 15 Ball screw for up and down 16 Stage 17 Vibration motor 18 Eccentric cam 19 Linear guide 20 Connecting cylinder 21 Connecting claw 22 Asobi 23 Press cylinder 24 Trail of tip 25 Entry angle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tomohisa Hagiwara 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd. (72) Inventor Go Hatagai 1-chome, Ichigaya-kaga, Shinjuku-ku, Tokyo No. 1 Dai Nippon Printing Co., Ltd.

Claims (3)

[Claims] 1. A stacking table for a stacking and stacking device, wherein a stack of stacks of stacked stacks, which are transferred in a flowing form, are continuously introduced onto a stacking table and are stopped and stacked as a stacking row of stacks of standing books. Move in parallel, stop at a predetermined position, and put in and out to insert the stacking rows of the printed books stacked upright on the stacking table so as to partition, and open and close to widen the spacing between the stacking rows partitioned on both sides. A printed book stacking device comprising at least one pair of partition plates configured as described above. 2. The pair of partition plates vibrate during the loading and unloading, and the trajectory of the partition plate tips, which is a combination of the vibration and the loading and unloading, enters the stacking row of the books at an angle of 30 degrees or more with respect to the stacking table surface. The printed book stacking apparatus according to claim 1, wherein: 3. The copy book stacking apparatus according to claim 1, wherein the pair of partition plates are vibrated at a frequency equal to or higher than the natural frequency of elastic vibration of the stacking rows on both sides which come into contact with each other by the insertion and removal.