JP2882873B2 - Printing book collecting method and printing book collecting apparatus used therefor - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for stacking prints discharged from a printing process in a large bundle.

2. Description of the Related Art Conventionally, the following two methods are generally used as a method of collecting prints discharged from the delivery of a rotary press or a folder in a large bundle.

One method is, as shown in FIG. 9, after the sashimi or sashimi discharged in a state of being separated one by one from the sushi transport conveyor 1 is temporarily stacked in a small bundle t in a horizontal stack. The small bundle t
Are piled up from below to form a large bundle T
It is a method of forming. In this case, since the normal printing book s has a back bag on one side, a large bundle T that is horizontally stacked in the same direction is used.
When this is formed, as shown by P in FIG. 10 (a), the side on the side of the back bag rises and becomes very unstable and easily collapsed. Therefore, usually, small bundles t are stacked side by side so that there is little swelling on the back bag side and it is easy to handle, and when stacking from the lower side, as shown in FIG. By performing an operation referred to as, the swelling on the back bag side is eliminated and the large bundle T is accumulated. In particular, in the case of a multi-page printing book or a cardboard printing book in which the swelling on the back bag side is conspicuous, such a frame return is usually performed.

Another method is, as shown in FIG. 11, a method of directly collecting the prints s discharged from the print book transport conveyor 1 into a large stack T in a vertically stacked state without passing through a small bundle. . More specifically, as shown in FIG. 12, printing books s conveyed from above or from below by the booklet conveying conveyor 1 are sequentially dropped onto the large bundle accumulating conveyor 2 and accumulated in a large bundle state. In this case, the vertical stacking state is maintained by the backing plate 3 which advances integrally with the large bundle accumulation conveyor 2.

[Problem to be Solved by the Invention] In the former horizontal stacking method among the methods described in the related art, when docking a bundle of upper sheets s already accumulated and a new smaller bundle t of lower sheets, However, there is a problem that a stable operation is difficult to obtain because the alignment state is disturbed though the four sides are surrounded by the guides, since the bundle of the print books s falls once. In addition, especially for a multi-page booklet or a cardboard bookbook, it is inevitable to turn over the pieces for the above-mentioned reason. There is also a problem that it becomes necessary.

Further, in the latter vertical stacking method, there is an advantage that a large bundle T in which the direction of the prints s is constant can be obtained as compared with the former horizontal stacking method, but the prints s are directly dropped on the large bundle stacking conveyor 2. Therefore, when the number of printed books s to be handled is multi-page or when thick paper is used, the printed books s have a stiffness and can perform a somewhat favorable stacking operation. In the case of thin paper, it is difficult to perform the stacking operation by this method because the printing book s has no rigidity and is folded or bent during the stacking operation. As described above, there is a problem that the number of prints s that can be handled is limited in the current integration operation of directly forming a large bundle T.

The present invention has been made in view of the above-described problems, and has as its object the purpose of vertically stacking, which is more desirable for all types of prints regardless of the type of paper or the number of pages. It is an object of the present invention to provide a printing book stacking method capable of forming a large bundle and a printing book stacking apparatus used for the method.

[Means for Solving the Problems] In order to achieve the above object, a method for stacking booklets according to the present invention is to stack printheads discharged from a printing process in a horizontally stacked state to sequentially form small bundles, After holding the small bundles with a pair of small bundle holding plates having a skewer blade shape and rotating them into a vertical state, the small bundles in the vertical state are placed in a front large bundle holding plate and a pair of rear large bundles. What is claimed is: A method of stacking booklets in which a large bundle in a vertically stacked state is sequentially held with one of the holding plates, wherein the pair of rear large holding plates each have a shape that fits with the small holding plate. And

In addition, the booklet stacking apparatus of the present invention includes a small bundle forming unit that collects the prints discharged from the printing process in a horizontally stacked state and sequentially forms small bundles, and stacks the small bundles from the small bundle forming unit. A small bundle rotation unit that holds and rotates with a pair of blade-shaped small bundle holding plates to make it vertically oriented, a small bundle from the small bundle rotation unit, a front large bundle holding plate, and a pair of large bundle holding plates And a large bundle forming unit that sequentially holds with one of the two and is accumulated in a large bundle in a vertically stacked state,
The gist is that the pair of rear large bundle holding plates have a shape that fits with the small bundle holding plate.

[Operation] In the printing book stacking method and stacking apparatus configured as described above, the small bundles in the horizontal stacking state are once created,
The small bundles are rotated while maintaining the aligned state to be in a vertical state, and are sequentially docked to form a large bundle in a vertically stacked state.

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

FIG. 1 shows an example of a process of stacking a predetermined number of print books discharged from a printing process to form a small bundle in a horizontal stack, and sequentially aligning the small bundles to finally form a large bundle in a vertical stack. Is shown.

First, a printed book which comes out of a rotary press in a folded state or which comes out through a folding machine after being printed by a sheet-fed printing press.
Are collected in the small bundle forming section A in the state of the small bundle t. That is, as shown in FIG. 1, the prints s continuously discharged in a sashimi form or partly separated on the belt conveyor 11 are accumulated on the elevating table 12 at the accumulation position. Here, the printed book s is a signature and has a back bag on one side. If too many copies are accumulated, the back bags overlap and easily collapse. A bundle t is set. Reference numeral 13 denotes a cut-off plate, which is lowered when a predetermined number of copies s pass, and stops the flow of the copies s for a short time. Then, the elevating table 12 on which the horizontally stacked small bundles t of the predetermined number of prints s are placed is lowered in this short time, and instead of this operation, the skewer blade 14 is extended. When the skewer blade 14 is extended, the cut-off plate 13 rises, and the printing book s flows again and starts to accumulate on the skewer blade 14. On the other hand, the lift 12 descends to the extruded position, and the small bundle t on the lift 12
Is pushed rightward in the figure by a small bundle pushing plate 16 operated by a pushing cylinder 15 and stored in the small bundle rotating section B.

The small bundle rotating portion B is provided with a fixed upper small bundle holding plate 21.
And a lower small bundle holding plate 23 movable by a press cylinder 22. As shown in FIG. 2, each of the small bundle holding plates 21 and 23 is shaped like a skewer, and the lower small bundle holding plate 23 is fitted with the elevator 12 to form a horizontally stacked small plate. While letting bundle b be introduced smoothly,
A skewer-shaped abutment plate 24 having a shape that fits well with the small bundle holding plates 21 and 23 is protruded from below, and the small bundle t is removed by the small bundle pushing plate 16. It is pushed until it hits 24.

After the small bundle t is introduced into the small bundle rotating section B, the press cylinder 22 is operated to raise the lower small bundle holding plate 23, and the small small bundle holding plate 21 is fixed to the fixed upper small bundle holding plate 21. The bundle t is firmly held while maintaining its alignment. When the small bundle t is sandwiched in this way, the stopper plate 24 becomes
Then, the small bundle rotating unit B is rotated by the rotation cylinder 26, and the small bundle t is in the vertical state as shown by the dotted line in FIG. Subsequently, as shown in FIG. 3, the small bundle rotating unit B is actuated by the lateral movement cylinder 27 and moves toward the large bundle forming unit C rightward in the figure.
Note that the lateral movement cylinder 27 can be slid up and down on the guide rail. When the small bundle rotating unit B moves toward the large bundle forming unit C, the vertical movement cylinder 29 of the small bundle rotating unit B simultaneously slides rightward on the guide rail 30.

In the large bundle forming section C, one of a front large bundle holding plate 42 that is operated in the horizontal direction by the moving chain 41 and one of a pair of rear large bundle holding plates 45 and 46 that are operated in the horizontal direction by the moving chains 43 and 44, respectively. Then, the operation of docking the small bundle t behind the large bundle T that is already held in the vertical stack is performed. Details at that time are shown in FIG. That is,
The small bundle t moves rightward in the figure while being held by the small bundle holding plates 21 and 23. At this time, the large bundle mounting table 47, which has a shape that fits well with the small bundle holding plates 21 and 23, Inserted below t. Further, the rear large bundle holding plates 45 and 46 also have a shape that fits well with the small bundle holding plates 21 and 23, and the small bundle holding plate 21 and the rear large bundle holding plate 45 fit together as shown in FIG. After that, a large bundle holding plate 45
On the contrary, the other rear large bundle holding plate 46 is lowered by the elevating cylinder 49 and set on the back side of the small bundle holding plate 23. Thereafter, the small bundle holding plate 23 on the movable side is moved to the left by the press cylinder 23 to release the small bundle t and, at the same time, deliver the end face of the small bundle t to the rear large bundle holding plate 46.
Here, the rear large bundle holding plates 45 and 46 have the moving chains 43 and 44 and the elevating cylinders 48 and 49, respectively, as described above, so that they can operate freely without interfering with each other. I have. Subsequently, as shown in FIG. 5, the small bundle rotating section B is lowered by the vertical movement cylinder 29, and the small bundle holding plates 21, 23 are pulled out downward. As a result, the small bundle t and the large bundle T are completely docked to form a new large bundle, and are held by the front large bundle holding plate 42 and the rear large bundle holding plate 46. After the small bundle rotating unit B descends, it is rotated by the rotating cylinder 26 to be in the state shown by the dotted line in FIG. 5, and then the horizontal moving cylinder 27 and the vertical moving cylinder 29 allow the small bundle to enter the predetermined position. Then, the abutment plate 24 comes out from below, and the state shown in FIG. 6 is obtained. On the other hand, the large bundle T moves rightward to a predetermined position while being held by the front large bundle holding plate 42 and the rear large bundle holding plate 46 for the introduction of the next small bundle t, and the other large back bundle holding plate 45 is replaced with this. Move to the left and stand by for the next small bundle t. As described above, the rear large bundle holding plates 45 and 46 are sequentially replaced with each small bundle t.

The above-described operation is defined as one cycle, and the horizontally stacked small bundles t are sequentially stacked on the vertically stacked large bundles T.

In the above embodiment, the horizontally stacked small bundle t is rotated by 90 degrees in the small bundle rotating unit B to create a complete vertically stacked large bundle T, but the rotation angle is less than 90 degrees or 90 degrees. Alternatively, the large bundle may be collected in a state where the large bundle is obliquely inclined in accordance with the rotation angle.

Further, in the above embodiment, the large number of sheets T
It is most desirable that the side of the back bag, which is one side of the printed book s, be down when the sheets are stacked. Therefore, in order to do this, it is necessary to advance the back bag side when introducing the small bundle t into the small bundle rotating unit B. Here, there is no problem if the printed book s is conveyed on the belt conveyor 11 in advance of the back bag side. However, in the case of a rotary press, the direction of the printed book s is different, and the printed book s is always in front of the back bag side. Not necessarily. Therefore, in another embodiment, as a mechanism for changing the direction after creating the small bundle t in the small bundle forming unit A, a direction changing unit D as shown in FIG. 7 is combined. This turning part D is
It is provided between the small bundle forming section A and the small bundle rotating section B, and has a turntable 51 and a gear 52 on the back side thereof. By performing the rotational movement in the direction of the arrow, the direction of the small bundle t sent from the small bundle forming unit A can be arbitrarily changed.

In still another embodiment, in order to increase the cycle time for forming a small bundle, the small bundle rotating unit B and the large bundle forming unit C shown in FIG. t was sequentially distributed. FIG. 8 shows an example of the sorting unit E. When the small bundle t is supplied from the small bundle forming unit A onto the rotary table 61, the direction of the small bundle t is changed as necessary, and Next, the distribution arm 62 moves left and right on the rail 63, and the small bundles t are sequentially distributed on the left and right small bundle tables 64 and 65, respectively.
The small bundle pushing plates 68 and 69 are sequentially operated by 7 to introduce the small bundles t into the respective small bundle rotating units B, thereby performing the large bundle accumulation operation in two rows.

[Effects of the Invention] As described above, according to the present invention, a printing book is temporarily turned into a small bundle in a horizontally stacked shape, and the small bundle is rotated vertically while being held by a pair of small bundle holding plates having a skewer blade shape. After being in the orientation state, the small bundles in the vertically oriented state are collected and held by the front large bundle holding plate and one of the pair of rear large bundle holding plates so as to be sequentially stacked into large bundles, In addition, since the pair of rear large bundle holding plates are shaped to fit into the small bundle holding plates, small bundles can be smoothly transferred between the small bundle forming unit and the large bundle forming unit, and small-page prints and thin paper sheets can be formed. Since the booklets can also be stacked vertically without folding or bending, it is possible to create a large bundle of vertically stacked sheets which is more desirable for all types of booklets.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing the entire process of converting a booklet discharged from a printing process into a horizontal stack of small bundles and converting the print stack into a vertical stack of large bundles, and FIG. FIG. 3 is a perspective view of a main part showing a state where the small bundle is introduced into the small bundle rotating section. FIG. 3 is a schematic view showing a state where the small bundle is introduced from the small bundle rotating section into the large bundle forming section.
FIG. 5 is a perspective view of the main part, FIG. 5 is a schematic view showing a state where a small bundle is docked to a large bundle in the large bundle forming unit, and FIG. 6 is a small bundle rotating unit and a standby unit for introducing the next small bundle. FIG. 7 is a schematic view showing the state of the large bundle forming unit, FIG. 7 is a top view of a direction changing unit disposed between the small bundle forming unit and the small bundle rotating unit in another embodiment, and FIG. In the example, a top view of the sorting unit provided between the small bundle forming unit and the two small bundle rotating units, FIGS. 9 and 10 are explanatory views of the conventional horizontal stacking method, FIGS. 11 and 12 The figure is an explanatory view of a conventional vertical stacking system. 11 ... belt conveyor, 12 ... elevator, 13 ... cut plate, 14 ...
Skewer blade, 15: Extruding cylinder, 16: Small bundle extruding plate, 21: Small bundle holding plate, 22: Pressing cylinder, 23: Small bundle holding plate, 24: Fixing plate stopper, 25: Vertical cylinder, 26
... Cylinder for rotation, 27 ... Cylinder for horizontal movement, 28 ... Guide rail, 29 ... Cylinder for vertical movement, 30 ... Guide rail, 41 ... Chain for movement, 42 ... Catch plate for large bundle in front, 43,44
… Chain for moving, 45,46… Large bundle holding plate at the back, 47… Large bundle mounting table, 48,49… Cylinder for lifting, 51… Turntable, 52… Gear, 53… Cylinder for rack, 54… Rack,
61 ... rotating table, 62 ... distribution arm, 63 ... rail,
64,65… Small bundle table, 66,67… Cylinder for extrusion,
68, 69: small bundle pushing plate, A: small bundle forming unit, B: small bundle rotating unit, C: large bundle forming unit, D: direction changing unit, E: sorting unit, T: large bundle, s: printing book, t … A small bunch,

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masayoshi Watanabe 1-1-1, Ichigaya-Kagacho, Shinjuku-ku, Tokyo Inside Dai Nippon Printing Co., Ltd. (72) Inventor Akihiko Shibata 1-1-1, Ichigaga-cho, Shinjuku-ku, Tokyo No. 1 Dai Nippon Printing Co., Ltd. (72) Inventor Masaaki Takahashi 1-1-1, Ichigaya Kagacho, Shinjuku-ku, Tokyo Dai Nippon Printing Co., Ltd. (56) References JP-A-51-72056 (JP, A JP-A-63-189363 (JP, A) JP-A-63-8118 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65H 31/30 B65H 1/30 320

Claims (2)

(57) [Claims] 1. A method according to claim 1, wherein the printing books discharged from the printing step are stacked in a horizontal stack to form small bundles, and the small bundles are held and rotated by a pair of small bundle holding plates each having a skewer blade shape. After the portrait orientation, the small bundles in the portrait orientation are sequentially held by a front large bundle holding plate and one of a pair of rear large bundle holding plates to form a large stack in a vertically stacked state. And a pair of rear large bundle holding plates, each of which has a shape to be fitted with a small bundle holding plate. 2. A small bundle forming section for stacking print books discharged from a printing process in a horizontal stacking state and sequentially forming small bundles, and a pair of skewer blade-shaped small bundles from the small bundle forming section. A small bundle rotating unit that holds the small bundle holding plate and rotates it to be in a vertical orientation, and a small bundle from the small bundle rotating unit is sequentially held by a front large bundle holding plate and one of a pair of large bundle holding plates. And a large bundle forming portion for vertically stacking the large bundles, wherein the pair of rear large bundle holding plates are shaped to fit with the small bundle holding plates, respectively.