JP3297486B2 - Book storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing book storage device used to temporarily stop the flow of a printing paper continuously discharged from a rotary printing press when the printing paper is supplied to an accumulation device or the like. is there.

[0002]

2. Description of the Related Art In general, a rotary printing press discharges a book as a sashimi-like book row. Then, the printing book row is transported to a collecting device such as a binding machine by a belt conveyor, a chain gripper or the like. Each of these transporting means continuously transports the print book at the same pitch. However, for the stacking device, an operation of damping the print book row for each bundle to be stacked is indispensable. Conventionally, a stopper is protruded above a belt conveyor, or a pressing plate is operated in front of the stopper in order to prevent an extreme overlap of printed sheets, thereby performing a cut-off operation.

[0003]

However, in the case of performing the set-off operation of the printing book row by the stopper, there is a problem that the printing books are piled up or inclined in a dumpling shape.
Even if a presser plate is provided in front of the stopper and its operation speed is optimally controlled in accordance with the conveyor speed, there has been a problem that fluctuations in sashimi pitch can be reduced but not completely prevented in principle. For this reason, a paper jam occurs in the stacking device, or a situation in which the bundle of printing papers does not reach the bookbinding machine is caused.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to prevent a variation in the sashimi pitch of a printing book row and the occurrence of a dumpling of printing books. It is an object of the present invention to provide a book storage device for temporarily stopping the flow of a book.

[0005]

In order to achieve the above object, a printing book storage device according to the present invention comprises a row of support belts rotating in contact with a pair of rotatable support drums, and a row of support belts. A presser belt row, which is disposed to face and rotates so as to convey a print book between the two belt rows, and both belts from behind the presser belt row passing between a pair of support drums A rotatable moving drum that pushes and detours the row, and a pair of moving pulleys that supply and discharge each belt row with the movement of the moving drum,
It is characterized by including tension maintaining means for maintaining the tension of each belt row, and a drive pulley for driving each belt row.

[0006] A pair of moving pulleys may be connected to the moving drum in a predetermined positional relationship.

[0007]

In the printing book storage apparatus having the above-described structure, when the driving pulley stops and the conveyance of the printing paper sandwiched between the two belt rows is stopped, the moving drum moves to detour the two belt rows. Thus, the operation of storing the printing book in the apparatus is performed.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an embodiment of a printing book storage device according to the present invention, and has a configuration in which a transport path horizontally passing through the storage device is detoured downward during operation.

As shown in FIG. 1, a pair of support drums 1,
2 are arranged at intervals so as to be rotatable about a horizontal axis, and the support belt row 3 is wound around a plurality of pulleys and rotates while being in contact with these support drums 1 and 2. It has become. Further, a presser belt row 4 is also arranged so as to be rotatable so as to face the support belt row 3, and a printing book coming into the apparatus from an arrow A is transferred to both belt rows 3 and 4. The sheet is conveyed in a state sandwiched therebetween, and is discharged to an arrow B.

A moving drum 5 is disposed in contact with the inner side of the presser belt row 4 and moves between the supporting drums 1 and 2 to move to a lower position indicated by a dotted line in the drawing. Thereby, both belt rows 3 and 4 are pushed forward and detoured. The radii of the support drums 1 and 2 and the moving drum 5 are sufficiently large so as not to bend the book strongly. A linear guide and a ball screw are used for moving the moving drum 5, and the moving speed can be controlled.

The belt rows 3 and 4 are provided with moving pulleys 6 and 7 in the middle of their rotation paths, and the moving pulleys 6 and 7 move rightward as indicated by dotted lines in FIG. , The belts of the belt rows 3 and 4 are supplied and discharged. The moving pulleys 6 and 7 are connected to the apparatus via springs 8 and 9, respectively, and the springs 8 and 9 serve as tension maintaining means for the respective belt rows 3 and 4.

The belt rows 3 and 4 are rotated by respective drive pulleys 10 and 11 disposed on the printing paper discharge side.
The brakes and nip rollers are combined on 0 and 11,
Reverse rotation of the belt rows 3 and 4 during operation is prevented.

The operation of the printing book storage device having the above-described configuration is as follows.

In the standby state of the storage device, the printing book is transported straight on the support drums 1 and 2 by being sandwiched between the support belt row 3 and the pressing belt row 4. At this time, since the moving drum 5 is at the upper position and the length of the printing paper conveying path is the shortest, the moving pulleys 6 and 7 for supplying and discharging the belt rows 3 and 4 are also at the left position. The driving of the belt rows 3 and 4 is performed by the driving pulleys 10 and 11, respectively, and the speed of the belt rows 3 and 4 is the same everywhere.

When it becomes necessary to cut off the flow of the printing book, first, the driving pulleys 10 and 11 are stopped, and at the same time, the moving drum 5 is moved so that the rotational speed of the left supporting drum 1 is maintained. Start moving toward the lower position. This moving speed is half of the peripheral speed of the supporting drum 1 while the moving drum 5 is located below the supporting drums 1 and 2.
Then, with the movement of the moving drum 5, the belt rows 3, 4 are drawn between the supporting pulleys 12, 13 below the supporting drums 1, 2 together with the sandwiched prints, and the moving pulleys 6, 6 are correspondingly moved. 7 move to the right positions. The running speeds of the belt rows 3 and 4 are not uniform, and are stopped on the right side of the moving drum 5 and held on the left side. Therefore, the transport path of the printed book becomes longer by about twice the moving distance of the moving drum 5. That is, the storage capacity of the apparatus is about twice the distance between the upper position and the lower position of the moving drum 5.

When the drive pulleys 10 and 11 are re-driven after the end of the cutting, the moving drum 5 is driven so as to discharge a difference of a predetermined conveying speed in a process before and after the device.
Is gradually moved toward the upper position to return to the standby state.

In the embodiment shown in FIG.
And the movable pulleys 6, 7 are connected and fixed in a predetermined positional relationship shown in the figure. The tension pulley 1 pulled by the springs 8 and 9 is located in the middle of the rotation path of each of the belt rows 3 and 4.
4 and 15 are arranged, and the tension maintaining means prevents the belt rows 3 and 4 from bending. In this storage device, since the moving drum 5 and the moving pulleys 6 and 7 move integrally to the lower position shown by the dotted line in the figure, the belts 3 and 4 are pulled in with the movement of the moving drum 5. And the belt release due to the movement of the movable pulleys 6 and 7 cancels out, so that the tension of the belt rows 3 and 4 is stabilized as compared with the previous embodiment in which the movable pulleys 6 and 7 are operated by the springs 8 and 9. .

It is preferable that the printing book storing apparatus of the present invention is used during the transfer of a printing book continuously discharged from a printing press, but it can also be used during the transfer of other similar articles. is there.

[0020]

As described above, according to the printing book storage apparatus of the present invention, after stopping the driving pulleys of the support belt row and the holding belt row, both the belt rows are moved by the reciprocating moving drum. By pushing and detouring, the print book can be stored in the apparatus while being sandwiched between the two belt rows, so that the sashimi pitch of the print row does not fluctuate and the booklets do not overlap like a dumpling. The flow of the book sequence can be temporarily stopped.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a printing book storage device according to the present invention.

FIG. 2 is a perspective view showing another embodiment of the printing book stacking apparatus according to the present invention.

[Explanation of symbols]

 1, 2 support drum 3 support belt row 4 holding belt row 5 moving drum 6, 7 moving pulley 10, 11 driving pulley

Continuation of front page (56) References JP-A-3-297755 (JP, A) JP-A-63-262370 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B41F 13 / 64 B65H 5/02 B65H 29/12 B65H 29/66

Claims (2)

(57) [Claims] 1. A support belt row which rotates while being in contact with a pair of rotatable support drums, and is conveyed in a state where a book is sandwiched between the two belt rows. And a rotatable moving drum that moves between the pair of support drums so as to push and move both belt rows from the back side of the presser belt row so as to bypass them. A pair of moving pulleys for supplying and discharging the respective belt trains with the movement, tension maintaining means for maintaining the tension of the respective belt trains, and a driving pulley for driving the respective belt trains were provided. A printing book storage device, characterized in that: 2. The apparatus according to claim 1, wherein a pair of movable pulleys are connected to the movable drum in a predetermined positional relationship.
The printed book storage device as described.