JPH10258966A - Folding device for booklet folding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a folding device for booklet folding machine which permits setting of the lowering position and traveling amount of a knife easily for higher workability, improve the operating rate of a device, facilitate attainment of higher speed, and suppress wear and noise. SOLUTION: This folding device for booklet folding machine is provided with a pair of paper guides 45 on which a booklet is fed, a pair of folding rollers 27 disposed below the paper guides 45 so as to be capable of rotating, a stopper 51 which is fixed at the prescribed position of the paper guide 45 to stop the book, a sensor 52 which is disposed at the stopper 51 and detects the reach of the booklet, a control motor which actuates a screw feeding mechanism which is disposed above the opposing clearance of the paper guides 45, and a knife 44 which is supported by the screw feeding mechanism and press the book in the opposing clearance of the folding rollers 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding device for a booklet folding machine for folding a printed and bound booklet into a required size.

[0002]

2. Description of the Related Art There is a booklet 1 having a thickness of about 8 to 32 pages in catalogs, direct mails and the like. For example,
As shown in FIG. 4, a booklet 1 having a size of about 200 × 200 m / m is inserted into a long-sized No. 3 standard envelope (120 × 235 m / m).
In the case of mailing in m), it is necessary to fold the booklet 1 in two.

[0003] As a folding machine for folding such a booklet,
For example, a booklet folding machine as shown in FIG. 5 has been proposed. That is, the booklet folding machine includes a stocker 2 for storing a plurality of bound booklets 1 and one booklet 1 from the stocker 2.
A feed roller 3 which takes out and feeds each set, a folding device 4 for folding the sent booklet into two, a pressing device 5 for crushing the fold of the booklet 1 sent from the folding device 4, and a pressing device 5 A drag roller 6 for aligning the booklets 1 that have been individually folded and sent so that adjacent booklets overlap each other; 7

[0006] The folding device 4 is configured as shown in FIGS. 6 and 7. In the figure, a slide shaft 9 is slidably supported by a housing 8 supported on a frame of the folder through a support member (not shown). A knife 11 is fixed to the lower end of the slide shaft 9 via a holding plate 10.

[0005] In addition, at the axis of the slide shaft 9,
A play shaft 13 whose one end is supported by a spring 12 is slidably fitted, and is pushed into a predetermined position in the slide shaft 9 by an adjusting screw 14 screwed to the slide shaft 9. The adjusting screw 14 is fixed with a lock nut 15.

A motor 17 is fixed to a plate 17 fixed to the housing 8 via a case of an electromagnetic clutch brake 16.
8 is fixed. A belt 22 is stretched between a pulley 19 fixed to a rotating shaft of the motor 18 and a pulley 21 fixed to an input shaft 20 of the electromagnetic clutch brake 16.

A connecting lever 25 is rotatably supported on a crank plate 23 fixed to an output shaft of the electromagnetic clutch brake 16 via a hinge pin 24. A connecting pin 2 rotatably supported at one end of the connecting lever 25;
6 is slidably penetrated through the slide shaft 9 and is connected to the play shaft 13. Folding roller 27
Are arranged such that the facing gap faces the knife 11.

Then, by operating the motor 18 and rotating the crank plate 23, the slide shaft 9 is moved up and down via the connecting lever 25 and the play shaft 13.
The booklet sent underneath is placed on the fusing roller 2
7, the booklet is folded in two.

[0009]

In such a folding apparatus, when adjusting the lower end position of the knife 11, the lock nut 15 is loosened and the adjustment screw 14 is turned to adjust the relative position between the slide shaft 9 and the play shaft 13. It will need to be adjusted. For this reason, there is no reproducibility, it takes time for adjustment, and the workability is poor. In addition, the operation rate of the apparatus is reduced.

Further, since the moving amount of the knife 11 is constant, there is a limit in increasing the folding speed, and the electromagnetic clutch brake 16, the pulleys 19, 2
1. Wear of the belt 22 and the like and noise are increased.

In view of the above circumstances, it is an object of the present invention to easily set the lowering position and the moving amount of the knife, to improve the workability, to improve the operation rate of the apparatus, and to easily increase the speed. Another object of the present invention is to provide a folding device for a booklet folding machine that suppresses the generation of wear and noise.

[0012]

In order to achieve the above object, according to a first aspect of the present invention, there is provided a pair of guides which are arranged at a predetermined interval in a feed direction, and on which a booklet is fed, A pair of folding rollers rotatably arranged at predetermined intervals below the opposed gap of the guide, a stopper fixed to a predetermined position in front of the guide in the feed direction, and stopping the movement of the booklet, Detecting means arranged at a predetermined interval to detect the arrival of the booklet, a screw feed mechanism arranged above the facing gap of the guide,
A control motor for operating the screw feed mechanism and a knife supported by a linear moving member of the screw feed mechanism and for pushing a booklet into a gap between the folding rollers are provided.

In the second invention of the present application, a screw-type feed mechanism including a ball screw and a ball nut is provided as the screw-type feed mechanism.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side sectional view of a folding device,
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, and FIG. 3 is a plan view of a detecting unit that detects the arrival of the booklet.

1 and 2, reference numeral 30 denotes a housing.
A guide 31 is provided inside and fixed to the frame of the booklet folding machine (see FIG. 5). Reference numeral 32 denotes a control motor,
Is fixed on top. 33 is a bearing case and guide 3
Fixed to 1. A ball screw 34 is rotatably supported by a bearing case 33 via a bearing 35, and is connected to a rotation shaft of the control motor 32 by a joint 36. A holding ring 37 is fixed to the bearing case 33.

Reference numeral 38 denotes a ball nut screwed to the ball screw 34. A connecting plate 39 is fixed to the ball nut 38. A guide bar 40 is fixed to the connecting plate 39 so as to slidably pass through the bottom surface of the housing 30 and the guide 31 via a slide bush (not shown). Reference numeral 41 denotes a spring.
Is mounted on the guide bar 40 so as to be located between the bottom surface of the connecting plate 39 and the connecting plate 39, and urges the connecting plate 39 in the ascending direction.

A holder 42 is fixed to the lower end of the guide bar 40. A knife 44 is held by the holder 42 while being held by the holding plate 43.

2 and 3, reference numeral 45 denotes a paper guide. A bracket 46 is fixed to the housing. 4
Reference numeral 7 denotes a shaft, which is fixed to a bracket 46. An arm 48 is rotatably supported by a shaft 47. 49 is a roller for preventing return, which is composed of a bearing,
8 is supported at one end via a pin 50.

Reference numeral 51 denotes a stopper which is fixed to a predetermined position of the paper guide 45. A sensor 52 is fixed to the stopper 51.

With the above configuration, the booklet 1 is composed of the paper guide 4
5 and is stopped by hitting a stopper 51.
At this time, the roller 49 prevents the booklet 1 from returning due to the recoil that has collided with the stopper 51.

When a pair of sensors 52 simultaneously detect the leading end of the booklet 1, the control device (not shown)
2, the ball screw 34 and the ball nut 3
8. The knife 44 is lowered via the connection plate 39 and the guide bar 40. Then, the knife 44 pushes the booklet 1 down through the facing gap of the paper guide 45 to a position where the fusing roller 27 holds the booklet 1.

When the knife 44 descends to a predetermined position,
The controller reverses the control motor 32 to raise the knife 44 to a preset position. On the other hand, the booklet 1 held by the fusing roller 27 is folded into two by the fusing roller 27 and sent out.

As described above, the knife 44 can be moved up and down by rotating the control motor 32 forward and backward. At this time, the moving amount and the position of the knife 44 are
Since the numerical value can be set in the control device that controls the control motor 32, the position and the moving amount of the knife 44 can be easily reproduced by recording the necessary numerical value for each type of the booklet 1. .

Further, since the numerical value is set in the control device, the moving amount and the position of the knife 44 can be set and changed even during the operation of the folding device, and the operation rate of the device can be improved. .

Further, by employing a screw-type feed mechanism as a mechanism for moving the knife 44, the generation of noise during operation can be greatly reduced. Further, by employing a ball screw, wear can be reduced.

For example, if the moving stroke of the knife 44 is set to 40 mm, the folding speed of the
It can respond to a speedup of 00 books / minute.

[0027]

As described above, a pair of guides which are arranged at a predetermined interval in the feed direction and on which a booklet is fed, and which are rotatably arranged at a predetermined interval below the opposing gap between the guides. A pair of folding rollers, a stopper fixed at a predetermined position in front of the guide in the feeding direction and stopping the movement of the booklet, and a detecting unit arranged at a predetermined interval on the stopper and detecting the arrival of the booklet. A screw feed mechanism arranged above the opposing gap of the guide,
Since a control motor for operating the screw feed mechanism and a knife supported by the linear moving member of the screw feed mechanism and pushing a booklet into the opposing gap of the fusing roller are provided, the moving amount and position of the knife can be controlled. Since the numerical value can be set in the control device for controlling the motor, by recording the required numerical value for each type of booklet, the position and the moving amount of the knife can be easily reproduced.
Further, the operation rate of the device can be improved. Furthermore, generation of wear and noise can be suppressed.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a folding device in a booklet folding machine.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a plan view of detecting means for detecting arrival of a booklet.

FIG. 4 is a plan view of a booklet.

FIG. 5 is a configuration diagram showing a conventional booklet folding machine.

FIG. 6 is a front sectional view of a folding device in a conventional booklet folding machine.

FIG. 7 is a side view of FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Booklet, 30 ... Housing, 31 ... Guide, 32 ... Control motor, 33 ... Bearing case, 34 ... Ball screw, 35
... bearing, 36 ... joint, 37 ... holding ring,
Reference numeral 38: ball nut, 39: connecting plate, 40: guide bar, 41: spring, 42: holder, 43: holding plate, 44: knife, 45: paper guide, 46: bracket, 47: shaft, 48: arm, 49 Rollers, 50 pins, 51 stoppers, 52 sensors.

Claims (2)

[Claims] 1. A pair of guides arranged at a predetermined interval in a feed direction, on which a booklet is fed, and a pair of folding rotatably arranged at a predetermined interval below an opposing gap between the guides. A roller, a stopper fixed to a predetermined position forward of the guide in the feed direction, and stopping the movement of the booklet; detecting means for detecting arrival of the booklet arranged at a predetermined interval on the stopper; , A control motor for operating the screw feed mechanism, and a knife supported by a linear moving member of the screw feed mechanism and pushing a booklet into an opposing gap of the fusing roller. A folding device in a booklet folding machine. 2. The folding apparatus according to claim 1, wherein a screw-type feed mechanism including a ball screw and a ball nut is provided as the screw-type feed mechanism.