JPH0676170B2 - Copybook stacker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Object of the Invention [Industrial field of application] The present invention relates to a book stacker apparatus used as an accessory of a printing press.

The booklet printed by the printing machine and folded by the folding machine is then transferred to the bookbinding process. When the booklet issued from the folding machine is transported to the bookbinding process, a plurality of booklets ( For example, 50 parts) are stacked to form a small bundle, and a plurality of small bundles (for example, 5 pieces) are stacked to form a large bundle and bundled by a bundler.

The book stacker apparatus of the present invention is used for forming a large bundle of such books.

[Prior Art] When forming a large bundle of such a book, a conventionally used book stacker device, as shown in FIG. The table 2 is provided, and the claw members 104 that support the lower side of the small bundle of printed books 1 are provided on both sides of the vertical movement path of the elevator table 2. The claw member 104 is attached to the lower end of the arm 105, and the arm 105 can swing about a rotation shaft 106 at the upper end.
This arm 105 is driven by an air cylinder 108 via a lever 107.

Then, as the operation, in the state shown in FIG. 4, the small bundle of printing sheets previously supported by the claw member 104 is
When feeding the next small bundle of books 1b to the lower side of a, when the elevator table 2 rises and the small bundle of books 1b approaches below the small bundle of books 1a, the air cylinder 108 operates and the claw member is operated. 104 is opened to the outside, and the small bundle of printing books 1a supported by the claw member 104 drops onto the small bundle of printing books 1b, whereby the small bundle of printing books 1a and the small bundle of printing books 1b are stacked. The small bundles of printing books 1a and 1b are conveyed to the elevator table 2 as they are and ascend, and when the lower side of the lower bundle of printing books 1b reaches the upper part of the claw member 104, the air cylinder 108 operates in the opposite direction, The claw member 104 enters the lower side of the small bundle of books 1b to support the bundle of small books 1b and the small bundle of the books 1a above it. Finally, the elevator table 2 descends and returns to the standby position. After that, the same operation is performed for the subsequent small bundle of printing books to stack the small bundle of printing books to form a large bundle of printing books.

[Problems to be Solved by the Invention] In the conventional stacker device having such a configuration, since the opening / closing rotational displacement movement of the claw member 104 is performed, the locus of the tip of the claw member 104 forms an arc as indicated by a chain line 111. Because I draw, claw member 1
When 04 is opened, the upper end of the small bundle 1b of the book interferes with the claw member 104 and pushes the upper part of the book outward, which causes not only misalignment, but also the misaligned part is folded and becomes a defective product. There is a problem. Further, since it is necessary to avoid the interference between the above-mentioned claw member and the upper part of the printing plate, if the claw opening / closing is performed at a position where the small printing plate bundle 1b is not sufficiently close to the small printing plate bundle 1a, the small printing plate bundle 1a in the upper part is Will fall to the upper surface of the lower bundle of small books 1b, so that misalignment and scattering are likely to occur. In particular, a small bundle of printed books is simply piled on top of each other and is not compressed. Therefore, when the printed book is a paper of poor quality (rough paper), this tendency is serious. In addition, in order to prevent the small bundle of printed books from being displaced, scattered, and falling, it is necessary to frequently adjust the timing of opening the claws depending on the number of small bundles of the printed books and the quality of the paper, which hinders efficient operation of the printing apparatus. Has become.

The present invention has been made in view of the circumstances as described above, and when stacking a small bundle of printing books, the upper surface of the small bundle of printing books is pushed to remove air between the respective printing books so that the left and right heights are reduced. It is possible to reduce the volume of the small bundle of prints by compressing it to a level that is almost horizontal, and to increase the frictional force between the prints that make up the small bundle of prints to prevent them from slipping. At the same time, the receiving plate serving also as the pressing plate opens and closes horizontally while pressing the upper surface of the small bundle of printed books, so that it is an object of the present invention to provide a printed book stacker device that does not cause a shift or drop of the printed books.

(B) Configuration of the Invention [Means for Solving the Problem] In response to this object, the book stacker apparatus of the present invention is
A book stacking section having a book stacking space in which the book stacks can be stacked and whose lower end is open, and a book stack can be placed and moved up and down to enter and exit the book stack stacking space through the lower end. An elevator table, an elevator table drive device that can drive the elevator table up and down, and a guide that is disposed substantially along a vertical movement path of the elevator table and is displaceable in a lateral direction substantially perpendicular to the vertical movement path. A shaft, a guide shaft drive device that can drive the guide shaft in the lateral direction, and a guide shaft drive device that projects toward the vertical movement path and is slidably supported by the guide shaft. It is characterized in that it is provided with a receiving plate serving also as a press plate that moves in and out of the space for accumulating the printed books by lateral displacement.

Hereinafter, details of the present invention will be described with reference to the drawings illustrating an embodiment.

In FIGS. 1 and 2, reference numeral 10 denotes a book stacker device, and the book stacker device 10 includes an elevator table 2. The elevator table 2 is capable of moving up and down with the small bundle of books 1 placed thereon.

The elevator table 2 is driven by an elevator table driving device 3. An air cylinder 4 is used as the elevator table drive device 3.

Guide shafts 5 are vertically arranged above both sides of the vertical movement path of the elevator table 2. The upper end of the guide shaft 5 is connected to the slider 6. The slider 6 can move in the horizontal direction along a guide shaft 7 arranged in the horizontal direction. The guide shaft 7 is supported by the fixed frame 8.

The slider 6 is driven by the guide shaft drive device 11 and is displaced horizontally along the guide shaft 7.

The guide shaft drive device 11 includes an air cylinder 12, and the piston rod 13 of the air cylinder 12 includes a tip fitting 14 and a bracket 15.
It is connected to the slider 6 via. Piston rod 13
Move in and out horizontally. The air cylinder 12 is fixedly attached to a mounting shaft 17 by a fixing bracket 16. The mounting shaft 17 is supported by the fixed frame 8. Therefore, when the air cylinder 12 is operated, the slider 6 is horizontally displaced along the guide shaft 7, whereby the guide shaft 5 is laterally displaced.

On the other hand, a bearing case 21 is fitted on the guide shaft 5 so as to be slidable in the vertical direction, and a press plate / support plate 22 is fixed to the lower end of the bearing case 21. It should be noted that this bearing case is configured such that only linear displacement in the axial direction of the guide shaft 5 is allowed through the guide shaft, the groove, and the protrusions.
You may make it rotate around. Press plate and receiving plate
The reference numeral 22 projects toward the inner side of the book stack collecting portion 23. Therefore, when an external force acts on the press plate / support plate 22, the press plate / support plate 22 freely moves up and down along the guide shaft 5.

However, the lower limit of the press plate / support plate 22 is defined by a stopper 24 attached to the lower end of the guide shaft 5.
Further, when the guide shaft 5 is displaced left and right, the press plate / support plate 22 is also displaced left and right integrally with the guide shaft 5. The lateral displacement of the press plate / support plate 22 is the opening / closing operation of the press plate / support plate.

[Operation] Next, the operation of the book stacker apparatus thus configured will be described with reference to FIG.

In the state shown in No. 3 (A), the receiving plate that also serves as the press plate is first
When the small bundle of books 1b is fed below the small bundle of books 1a supported by 22, the air cinder 4 is actuated to raise the elevator table 2 and the small bundle of books 1b, and the small bundle of books 1b.
The upper end of the contact plate contacts the lower surface of the press plate / support plate 22 (FIG. 3 (B)). The small bundle of copybooks 1b continues to rise and pushes up the receiving plate 22 that also serves as the press plate and the small bundle of copybooks 1a above it (the third
(Figure (C)). At this time, the small bundle 1b of the copy sheets is placed on the receiving plate 22 which also serves as the pressing plate
And the gravity of the stack of the printed books placed on the receiving plate 22 that also serves as the press plate (in the case of the drawing, the gravity of the small bundle of books 1a) is pushed and the air inside the small bundle escapes. It is compressed to such an extent that the upper surface of the book is almost horizontal.

Further, the elevator table 2 stops at a position where it has risen to the uppermost position from the lowermost position of the press plate / support plate 22, and the air cylinder 12 operates to displace the guide shaft 5 outwardly. The small bundle of books 1a is pulled out in the horizontal direction from the lower surface, and the small bundles of book 1a and 1b overlap each other. At the same time, the support plate 22 that also serves as the press plate is driven by its own weight by the guide shaft 5
And falls back to the original lowermost position (FIG. 3 (D)).

Next, the air cylinder 12 operates in the opposite direction, the press plate / support plate 22 is displaced inward, and is inserted into the lower surface of the small bundle 1b of the book, as shown in FIG. The receiving plate 22 and the receiving plate 22 are aligned on the same plane so that they cooperate to support the lower surface of the small bundle of books 1b.
Support with and. Next, the air cylinder 4 operates in the reverse direction, and the elevator table 2 descends to the original position (a new device for receiving a small bundle of printing books) and returns to the initial state (FIG. 3 (E)).

The same operation is repeated for the stack of the new small bundle of copybooks.

(C) Effect of the Invention In the stacking apparatus for the book stacker thus configured, after the press plate / support plate 22 is pushed up from below by the press book bundle 1b and the elevator table 2 is lifted, the press plate / support plate. 22 opens to the left and right, so a small bundle of books 1b
To the press plate and the small bundle 1b of the book is also used as a press plate.
22 and the small booklet 1a previously placed on it are pressed from above by the gravity, and the air in the small booklet is released to the outside and the upper surface of the book is almost leveled. , The friction between the printing plates is increased, and when the press plate / support plate 22 is pulled out from the small bundle of press plates, the press plate / support plate escapes horizontally. Can be stacked in large bundles without breaking
The packing of a large bundle of printed books becomes extremely good. Therefore, the deviation of the printed book,
Scattering, dropping, etc. are eliminated, and damage such as bending of the printed book can be reduced. Further, unlike the conventional case, it is not necessary to adjust the opening timing of the claws depending on the thickness of the small bundle of the printed sheets and the quality of the paper, and the stacking workability is significantly improved.

[Brief description of drawings]

FIG. 1 is a bottom view of a book stacker device according to an embodiment of the present invention, FIG. 2 is a front view of the book stacker device, and FIG. 3 is an explanatory view showing the operation of the book stacker device. FIG. 4 is an explanatory view showing a conventional book stacker apparatus. 1 ... small bundle of books, 2 ... elevator table, 3 ... elevator table drive device, 4 ... air cylinder, 5 ...
... Guide shaft, 6 ... Slider, 7 ... Guide shaft, 8 ... Fixed frame, 10 ... Print stacker device, 11 ... Guide shaft drive device, 12 ... Air cylinder, 13 ... Piston rod,
14 …… Tip fitting, 15 …… Bracket, 16 …… Fixing fitting,
17 …… Mounting shaft, 21 …… Bearing case, 22 …… Retaining plate that also serves as a press plate, 23 …… Printer stacking unit, 24 …… Stopper

Claims (1)

[Claims] 1. A book stacking section having a book stacking space capable of stacking book stacks and having an open lower end; and a stack of book stacks capable of being placed and vertically moved through the lower end. Elevator table that can move in and out of a space, an elevator table drive device that can drive the elevator table up and down, and a lateral direction that is disposed substantially along a vertical movement path of the elevator table and is substantially perpendicular to the vertical movement path. A guide shaft that can be changed, a guide shaft drive device that can drive the guide shaft in the lateral direction, and a guide shaft drive device that projects toward the vertical movement path and is slidably supported by the guide shaft. A book stacker device, comprising: a press plate-combining receiving plate that moves in and out of the book stack accumulating space by the lateral displacement of the guide shaft.