JP2561726Y2 - Working member drive device for folder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a working member of a folding machine cylinder for a rotary printing press, for example, a driving device for a gripper plate.

[0002]

2. Description of the Related Art A rotary printing press is provided with a folding machine for cutting a web at predetermined lengths and folding the web in a width direction or a length direction.

FIG. 4 shows a schematic configuration of the folding machine. In the figure, 1 is a former, 2 is a cutting cylinder, 3 is a folding cylinder, 4 is a holding cylinder, and the web W half-folded in the width direction by the former 1 is cut by the cutting cylinder 2, and the cut signature is in addition from the folding cylinder 3 is exchange for addition to cylinder 4 is parallel folding.

FIG. 5 shows details of an arrow V portion in FIG.

A folding knife 3 supported on a shaft 5 is mounted on the folding cylinder 3.
Is provided, and the insertion knife 6 is moved in and out by the rotation of the shaft 5. A gripper plate 8 supported by a gripper shaft 7 is provided on the gripper cylinder 4, and the gripper plate 8 opens and closes with respect to a gripper jaw 9 by the rotation of the gripper shaft 7.

When the insertion knife 6 and the holding plate 8 approach each other, the shaft 5 and the holding shaft 7 are rotated by a cam (not shown), and the insertion knife 6 protrudes and the holding plate 8 is opened. The insert knife 6 and the signature are held between the holding jaws 9, the holding plate 8 is closed, and the signature is carried to the holding drum 4.

Some rotary printing presses include a folding machine (double-width folding machine) capable of discharging signatures in two rows. In the double-width folding machine, a cutting blade, a needle, an insertion knife 6, and a holding plate 8 are provided in each cylinder in parallel.

As shown in FIG. 6, in the case of single-row discharge, the slitter 10 is released and the web is sent to the folder through the former 11. As shown in FIG. 7, in the case of two-row discharge, the web is cut with the slitter 10 attached and the turn bar 1 is cut.
The two rows of webs are sent via 2 to the folder.

[0009]

[Problems to be solved by the invention] When signatures are discharged in two rows by a double-width folding machine, the signatures pass in parallel to each body, but when the signatures are discharged in one row, only one side has signatures. As you can see, the other is in a state where the folding machine is operating without a signature.

At this time, the insertion knife 6 and the holding plate 8 for performing the parallel folding were operated and rubbed directly even without the signature. Therefore, even when the sheets are discharged in one row, the insert knife 6 and the gripper plate 8 on the side (peller side) through which the signature does not pass are also worn out early, and the insert knife 6 and the gripper plate 8 on the propeller side are worn out. Even had to be replaced.

[0011]

In order to solve the above-mentioned problems, the construction of the present invention is such that a work shaft extending along the axial direction is rotatably provided on a folding machine body, and the work is operated by the rotation of the work shaft. in the working member driving device of the folding machine body provided with a member in the work shaft, provided with dividing the work shaft in the axial direction, the lever to the working shaft, respectively, one
Of the folding machine cylinder via the lever provided on one of the working shafts
Rotate one of the working shafts at the folding work position by rotation
The first cam member for operating the work member to the frame side.
Through the lever provided on the other working shaft.
The other of which rotates the other working shaft by rotation of the folding machine body
Two cam members are provided movably on the frame side, and the folding work position
Rotate the other work shaft to operate the work member.
The other working shaft is not rotated between the
The second cam between the non-operation position where the work member is not operated
Comprising a moving mechanism for moving the member, the second at a predetermined moved position
A fixing means for fixing the cam member to the frame side is provided .

According to another aspect of the present invention, a work shaft extending in an axial direction is rotatably provided on a folding machine body, and a work member operated by rotation of the work shaft is provided with a work shaft. in the working member driving device of the folding machine cylinder with the provided with dividing the work shaft in the axial direction, the lever to the working shaft, respectively, one of the work
Rotation of the folding machine cylinder via a lever provided on the shaft
Rotate one of the working shafts at the folding
The first cam member for operating the material is fixed to the frame side,
Of the folding machine cylinder via the lever provided on one of the working shafts
A second cam portion for rotating the other work shaft by rotation
The material is movably provided on the frame side, and the other
The position where the work shaft is rotated to operate the work member
Working part without rotating the other working shaft in the folding work position
The second cam member is moved between the non-operation position where the material is not operated.
Comprising a moving mechanism for moving, provided a driving means for driving the moving mechanism based on the folding specifications of the folding machine, the at a predetermined moving position
A fixing means for fixing the two cam members to the frame side is provided .

[0013]

When a single-row discharge is performed, the second mechanism is operated by the moving mechanism.
Rotate the cam member to the inoperative position at the folding position
However , the operation at the folding operation position is not performed by shifting the operation timing of the operation member on the other operation shaft side (the propeller side) .

In order to discharge one row, the driving means is driven based on the folding specifications, and the second cam is moved by the moving mechanism.
Rotate the member so that it is in the inoperative position in the folding position.
However, the operation timing of the working member on the other working shaft side (the propeller side) is automatically shifted so as not to operate at the folding work position.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, a holding body is described as an example of a folding machine body, and a holding plate is used as a working member.

FIG. 1 shows a cross section of a holding drum provided with a driving device according to a first embodiment of the first invention.

In the figure, reference numeral 21 denotes a gripping cylinder, and the gripping cylinder 21 is rotatably supported by a frame 22. A holding plate shaft 23 serving as a working shaft is divided into two in the axial direction and supported rotatably via a bearing 24 on the holding cylinder 21, and constitutes one working shaft and the other working shaft.
Has formed. A holding plate 26 is attached to each holding plate shaft 23 via a holding plate holder 25. A lever 27 is provided on each of the gripper plate shafts 23, and a cam follower 28 is attached to each lever 27. As each gripper plate shaft 23 rotates, each gripper plate 26 opens and closes independently of the gripper jaw 29.

One side (left side in the figure ) of the frame 22 has a cover.
Cam 30 as a first cam member via a rubber holder 30a
Is fixed, and the cam 30 is one of the working shafts in the figure.
Cam follower 28 attached to left gripper shaft 23
Is in contact with The other side of the frame 22 (right side in the figure,
Side) is a second cam member via a cam holder 31a.
Cam 31 is provided, and the cam 31 is the same as the grip cylinder 21.
It is rotatably supported by the frame 22 in a core state. Mosquito
Is a holding plate on the right side in the figure, which is the other working shaft.
The cam follower 28 attached to the shaft 23 contacts
31 rotates through a gear 33 by turning a handle 32
(Move). And the cam 31 is folded
In the working position, the other working shaft, the right hand in the figure
The plate shaft 23 is rotated to operate the holding plate 26 (closed).
) Position and the folding platen shaft shaft 23 on the right side in the drawing at the folding operation position.
No operation to open (open) the holding plate 26 without rotating it
It is adapted to rotate between the moving position. Also cam 3
1 is a fixing means by a clamp handle 34.
The rotation is fixed to the frame 22 via the clamp 35
It is supposed to be.

[0019] when it is allowed to drain the signatures 36 two columns, mosquitoes
The cam 31 to the same phase position as the cam 30 to fix it.
You. This allows both the one and the other
The holding plate shaft 23 rotates, and both the holding plates 26 are in the folding operation position.
The two rows of signatures 36 are folded by opening / closing operation.

When the signatures 36 are discharged in one line, the gripper 26 on the side of the propeller is not folded, so that the handle 32
To rotate the cam 31 by a predetermined angle , and
Holding of the other holding plate shaft 23 with respect to the barrel insertion knife
The phase is changed so that the plate 26 does not close. This
In the folding position, the insertion knife and the other gripper plate shaft 23
Since the holding plate 26 does not contact, the other holding plate shaft
This is the same as the state in which the holding plate 26 of 23 is at rest.

An embodiment of the second invention will be described with reference to FIGS.

FIG. 2 shows a cross section of a holding cylinder provided with a driving device according to an embodiment of the second invention, and FIG. 3 shows a control circuit thereof. The same members as those shown in FIG. 1 are denoted by the same reference numerals, and duplicate description is omitted.

The gear 33 is attached to an output shaft of a motor 41 as a driving means.
3 rotates, and the holding plate shaft 23 rotates. Clamp 35
Are arranged at several places on the circumference of the cam holder 31 a, and the cam holder 31 a can be fixed to the frame 22 by the thrust of the air cylinder 42.

As shown in FIG. 3, in the case of single-row discharge, the slitter 43 is detached from the web, and in the case of double-row discharge, the slitter 43 is put on the web. A signal indicating the state of attachment / detachment of the slitter 43 is input to the control device 44, which determines a folding specification (single-row discharge or two-row discharge) and outputs a drive command to the motor 41 and the air cylinder 42. In the case of two-row discharge, the slitter 43 sends a landing signal to the control device 44,
By driving the motor 41, the cam 31 enters a normal phase state for folding a signature. In the case of single-row discharge, the slitter 43 sends a signal to the controller 44 to release the sheet, and the air cylinder 4
2, the clamp 35 is loosened, and the cam 31 is rotated to a predetermined position by the driving of the motor 41, whereby the clamp 35 is tightened.

In the case of single-row discharge, the slitter 43 is released, a release signal is sent to the control device 44, the cam 31 is rotated by a predetermined angle by driving the motor 41, and the folding cylinder is inserted at the folding operation position. The phase is changed so that the gripper plate 26 of the other gripper shaft 23 does not close to the knife. This allows
When the folding specification is switched, the other gripping plate shaft 23 is automatically
The holding plate 26 is at rest. Slitter 4
3 Chakujotai, i.e. if the two rows discharge motor 41 is driven by the incoming No. slitter 43 rotates the cam 31 other
The gripper plate 26 of the gripper shaft 23 is in a normal state , that is,
The state automatically returns to the state in which both the holding plates 26 open and close at the folding operation position .

In the above-described embodiment, the holding plate 26 has been described as an example of a working member. However, the present invention can be applied to other working members such as a folding knife insertion knife.

Further, in the second invention, the attachment / detachment signal of the slitter 43 is used to judge the folding specification. However, a sensor signal for detecting a paper jam of the folding machine, a signal for opening and closing the cock for the air cushion of the former unit, and a It is also possible to provide a sensor for detecting the presence or absence of paper on the side. Also, machine push buttons,
It is also possible to use a channel or the like. Although the case where the motor 41 is used as the driving unit has been described, other driving units may be used.

[0028]

[Effect of the Invention] The working member driving device of the folding machine body of the present invention is:
When the work shaft is divided and the work is not required, the operation timing of the work member can be shifted so that the operation at the folding work position is not performed. As a result, unnecessary wear and the like of the working member can be prevented.

The working member driving device according to the first invention has a relatively simple structure, is advantageous in cost, and has high reliability.

The work member drive device of the second invention can automatically shift the operation timing of the work member so that the operation at the folding work position is not performed when the folding specification is switched. It is performed reliably, and work forgetting can be eliminated.

[Brief description of the drawings]

FIG. 1 is a sectional view of a holding cylinder provided with a driving device according to an embodiment of the first invention.

FIG. 2 is a sectional view of a holding cylinder provided with a driving device according to an embodiment of the second invention.

FIG. 3 is a control circuit diagram of a holding cylinder shown in FIG. 2;

FIG. 4 is a schematic configuration diagram of a folding machine.

FIG. 5 is a detailed view of an arrow V part in FIG. 4;

FIG. 6 is a view for explaining the situation of single-row discharge.

FIG. 7 is a view for explaining the situation of two-row discharge.

[Explanation of symbols]

 21 gripper cylinder 22 frame 23 gripper plate shaft 26 gripper plate 27 lever 28 cam follower 29 gripper jaw 30, 31 cam 33 gear 41 motor 42 air cylinder 43 slitter

Claims (2)

(57) [Scope of request for utility model registration] 1. A work member driving device for a folder body, wherein a work shaft extending along an axial direction is rotatably provided on the folder body, and a work member operated by rotation of the work shaft is provided on the work shaft. The working shaft is divided in the axial direction, and a lever is provided on the working shaft, respectively .
Rotation of the folding machine cylinder via a lever provided on the working shaft
To rotate one of the work shafts at the folding work position.
The first cam member for operating the work member is fixed to the frame side
And fold through the lever provided on the other working shaft.
Second rotation of the other working shaft by rotation of the body
The cam member is movably provided on the frame side, and is
Rotate the other work shaft to activate the work member
Position and the folding operation position without rotating the other working shaft
A second cam portion between a non-operation position in which the operation member is not operated;
Comprising a moving mechanism for moving the timber, the second month at a predetermined moved position
A work member driving device for a folding machine body, comprising: fixing means for fixing a system member to a frame side . 2. A work member driving device for a folder machine body, wherein a work shaft extending in the axial direction is rotatably provided on the folder body, and a work member operated by rotation of the work shaft is provided on the work shaft. The working shaft is divided in the axial direction, and a lever is provided on the working shaft, respectively .
Rotation of the folding machine cylinder via a lever provided on the working shaft
To rotate one of the work shafts at the folding work position.
The first cam member for operating the work member is fixed to the frame side
And fold through the lever provided on the other working shaft.
Second rotation of the other working shaft by rotation of the body
The cam member is movably provided on the frame side, and is
Rotate the other work shaft to activate the work member
Position and the folding operation position without rotating the other working shaft
A second cam portion between a non-operation position in which the operation member is not operated;
Comprising a moving mechanism for moving the timber, provided with a driving means for driving the moving mechanism based on the folding specifications of the folding machine, the predetermined movement position
Fixing means for fixing the second cam member to the frame side by
Working member driving device of the folding machine cylinder, characterized in that there was e.