JP2002120968A - Folder having fold line position adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately adjust a fold line position by simple operation in a folder having a fold line position adjusting device. SOLUTION: This folder has the fold line position adjusting device 8 capable of adjusting the fold line position of a section. The fold line position adjusting device 8 comprises an eccentric member 37 coaxially relatively rotatably arranged with a shaft 17 of a folding cylinder 3' and rotatably supporting a shaft 15 of a folding blade 36 in a position eccentric from the shaft 17 of the folding cylinder, gear mechanisms 32, 33 and 35 for making the shaft 15 of the folding blade 36 rotate on its own axis when the folding cylinder shaft 17 and the eccentric member 37 relatively rotate, a phase adjusting mechanism 19 for adjusting a relative rotational phase of the eccentric member 37 and the folding cylinder shaft 33, a phase adjusting driving force source 29 for driving the phase adjusting mechanism 19 and a rotational phase detecting means 16 for detecting the rotational phase of the eccentric member 37.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a folding apparatus having a folding position adjusting device suitable for use in a newspaper offset rotary press or the like.

[0002]

2. Description of the Related Art FIGS. 5 (a) and 5 (b) are general folding devices (folding machines) installed in newspaper offset rotary presses and the like.
FIG. 6 is a diagram for explaining a schematic configuration, functions and problems of a folding body portion provided in the folding device and forming a signature. A general newspaper offset rotary press includes, as main components, a web supply unit for supplying a web, a printing unit for printing on the web, a drying unit for drying printing ink, and a cooling unit for cooling a hot web. A folding machine 7 for stacking, folding, and cutting a set of printed webs to produce a signature, and a paper discharge conveyor 6 for carrying out the signature 1 formed in the folding machine 7 to the outside are provided. .

Here, a folding machine 7 and a paper discharge conveyor 6 for forming the signature 1 are configured as shown in FIGS. 5 (a) and 5 (b), for example. As shown in FIG. 5A, the web 38 after printing is continuously conveyed from the printing device in the previous process, cut at the center in the width direction, and the folding machine 7 where the web 38 is overlapped. And is folded in two along the longitudinal direction via the triangular plate 4 provided at the entrance of the folding machine 7.

[0004] Subsequently, after being successively held by a lead-in roller 43 and a nipping roller 44 disposed below the triangular plate 4 and rotated and conveyed, it is further fed into the middle between the saw cylinder 2 and the folding cylinder 3. . As shown in FIG.
A saw table 45 is provided on the outer peripheral surface along the axial direction, and a saw blade 46 is incorporated in the saw table 45.

On the other hand, a saw blade receiver 47 is provided on the folding cylinder 3 at a position corresponding to the saw blade 46 as a receiving member for the saw blade 46. The saw blade receiver 47 is formed of an elastic body such as rubber along the axial direction of the outer peripheral surface of the folding cylinder 3. The folding cylinder 3 is provided with a needle device 49 having a needle 48 at the tip of an arm (needle arm) 49a and a folding blade 36 fixed to the folding blade shaft 15.

The saw cylinder 2 and the folding cylinder 3 are formed to have the same diameter, and are configured so that the saw blades 46 and the saw blade receivers 47 rotate synchronously and oppositely in a state where the phases are set so as to correspond to each other. ing. The folding blade shaft 15 rotates the folding cylinder 3 while rotating.
Are revolved around the central axis of the folding blade 36, whereby the movement trajectory of the tip of the folding blade 36 is 2 in FIG.
This is shown by the dotted line.

The needle 48 of the needle device 49 described above has a needle shaft 49
It is attached to the tip of the needle arm 49a assembled to the folding cylinder 3b, and enters and exits from the outer peripheral surface of the folding cylinder 3 at a predetermined phase position during the rotation in conjunction with the rotation of the folding cylinder 3. That is, the web 38 is cut by the saw blade 46 of the saw cylinder 2 and the saw blade receiver 47 of the folding cylinder 3, and at the same time, the needle 48 protrudes from the surface of the folding cylinder 3 to pierce the tip of the succeeding web 38, The web 38 functions to rotate and transfer the succeeding web 38 after the cutting, and to wind the web 38 around the outer peripheral surface of the folding cylinder 3.

The rotation of the web 38 causes the folding cylinder 3 to rotate.
When the central portion of the cutting length of the web 38 wound around the outer peripheral surface of the web approaches the position immediately above the folding roller 39, the needle 48 protruding from the surface of the folding cylinder 3 gradually retreats and comes out of the web 38, and substantially At the same time, the rear end of the web 38 has a saw blade 4
6 and saw blade receiver 47. Subsequently, along with the cutting of the web 38, the next needle 48 downstream in the rotation direction
The tip of the succeeding downstream web 38 protrudes so as to be hooked. Also, the cut web 38
The folding roller 39 by the action of the folding blade 36
And the signature 1 is created.

That is, the folding blade 36 is fixed to the folding blade shaft 15 incorporated in the folding cylinder 3, and the trajectory of the tip of the folding blade 36 is indicated by a two-dot chain line in FIG. During the rotation in conjunction with the rotation of the folding cylinder 3, the web 38 that enters and exits the folding cylinder 3 at a predetermined phase position (intermediate position of the folding roller) and is wound around the folding cylinder 3 immediately below the folding cylinder 3 is trimmed. At the center of the fold roller 39 and functions to fold in half at the center.

The folding roller 39 is composed of two sets of rollers 39a and 39b. The folding paper 39 is gripped by the cutting blade pushed by the folding blade 36 of the folding cylinder 3 and horizontally folded to form a horizontally folded signature. 1 is transferred to the downstream impeller 5 shown in FIG. Note that reference numeral 50 in FIG.
This is a guide for guiding the folded signature 1 to the impeller 5.

The impeller 5 is a device that receives the signatures 1 sent out via the folding rollers 39 and arranges them on the discharge conveyor 6 at a desired pitch. The impeller 5 includes a plurality of blades (blades). It is designed to be used in combination with multiple columns. The rotation speed of the impeller 5 is
The stacking pitch of the signatures 1 arranged on the discharge conveyor 6 is determined by the speed of the folder 7 and the traveling speed of the discharge conveyor 6.

With the above configuration and function, the signature 1 transferred from the impeller 5 onto the sheet discharge conveyor 6 is carried out to the outside while being stacked in a roof tile shape.

[0013]

Next, the problem of the signature forming section (folding cylinder) in the conventional folding machine 7 will be described. In the signature forming section of the folding machine 7 installed in the newspaper offset rotary press, the timing of releasing the folding blade 36 (i.e., the position of the fold) is usually determined by mechanical acceleration, deceleration, number of pages,
Due to the paper quality and the position of the page to be subjected to multicolor printing, the web 3
There is a problem that it fluctuates in eight running directions. For this reason, the end of the sheet of the folded signature 1 may be displaced, and a product outside the specified value may come out and become a waste sheet.

As means for addressing the above problem, for example, Japanese Patent Laid-Open Publication No. Hei 10-129928 proposes a folding machine provided with a folding position adjusting device. As shown in FIG. 6, the fold position adjusting device utilizes the centrifugal force generated by the rotation of the folding drum 3. That is, a shaft 52 rotatable around the folding cylinder 3 is provided at a position near the outer periphery of the folding cylinder 3, a weight 51 is provided at an end of a lever 53 fixed to the shaft 52, and the centrifugal force of the weight 51 is provided. A spring 54 biasing in a direction against the force is mounted on the folding cylinder 3. Then, by the difference between the urging force of the spring 54 and the centrifugal force of the weight 51, the amount of the guide 55 floating from the outer peripheral surface of the folding cylinder 3 is changed, and the length of the web 38 located on the front side from the fold position is changed. That is, the fold position of the origami 1 is adjusted (corrected).

However, as described above, this apparatus automatically adjusts the floating amount of the guide 55 only in accordance with the increase or decrease of the centrifugal force according to the rotation speed of the folding cylinder 3, and has the following problems. . (1) As described above, the amount of protrusion of the guide 55, which is the fold position adjusting means of the signature 1, is automatically adjusted by a change in centrifugal force accompanying the rotation speed of the folding drum 3 (that is, proportional to the rotation speed). Adjustment of the folding size is not always accurate. Further, functionally, the fold position is changed only to one side in the sheet advancing direction from the normal fold position, and adjustment to the other side is impossible.

(2) An apparatus having only the function of the above (1), and various kinds of the above-mentioned elements, such as a change in the number of pages, a change in the number of pages, a position of a multicolored page, and a paper quality, when the speed is increased and when the speed is reduced. Can not cope with various condition changes. (3) Due to the above-described problem, accurate adjustment (correction) of the folding position still depends on humans, and therefore, an advanced adjustment technique is required for the operator.

(4) It takes time to adjust the fold position, during which time a large amount of waste paper is generated. (5) In connection with the above (3), there are various problems such as a variation in folding accuracy and a reduction in product quality (appearance) until the folding position is stabilized. The present invention has been made in view of such a problem, and an object of the present invention is to provide a folding device having a folding position adjusting device capable of executing accurate folding position adjustment with a simple operation. .

[0018]

According to a first aspect of the present invention, there is provided a folding device having a folding position adjusting device according to the present invention, wherein a folding blade is mounted on a rotating folding drum and a signature is formed by a pair of rollers. In a folding device configured to be folded in between, a folding position adjusting device capable of adjusting a folding position of the signature is provided, and the folding position adjusting device is disposed coaxially with an axis of the folding cylinder. An eccentric member provided and rotatably provided with respect to the axis of the folding cylinder, rotatably supporting the axis of the folding blade at a position eccentric from the axis of the folding cylinder; When the eccentric member rotates relative to each other, a gear mechanism that rotates the rotation axis of the folding blade, a phase adjustment mechanism that adjusts the relative rotation phase between the eccentric member and the axis of the folding cylinder, and the phase adjustment mechanism A phase adjustment driving force source to be driven, and a circuit for detecting a rotational phase of the eccentric member. It is characterized in that it includes a phase detecting means.

According to a second aspect of the present invention, there is provided a folding device having the folding position adjusting device according to the present invention, wherein the input device captures a machine operating speed at the time of forming the signature. A storage device that stores at least one condition among the conditions such as the machine operation speed, paper quality, the number of pages, and a paper threading route, and fold position correction information corresponding to the at least one condition; An arithmetic unit for calculating the driving amount of the driving power source for phase adjustment based on the obtained information, and an output unit for outputting the calculation result in the arithmetic unit are provided.

According to a third aspect of the present invention, in addition to the configuration of the second aspect, the folding device having the fold position adjusting device according to the present invention further includes a folding unit for the arithmetic result obtained by the arithmetic unit. When the eye position is manually corrected, the corrected fold position and the machine operation speed at this time are captured, and the fold position correction value corresponding to the machine operation speed stored in the storage device is obtained. It is characterized by having learning means for replacing the fold position with the corrected fold position.

According to a fourth aspect of the present invention, there is provided a folding device having the folding position adjusting device according to the present invention, in addition to the configuration according to the second or third aspect, when the machine operation speed increases and decreases. And is configured to adjust the fold position independently.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. First, the structure of the folding device having the folding position adjusting device according to the first embodiment of the present invention and the control function (operation and effect) of the folding cylinder will be described.
FIG. 1 is a schematic diagram showing the configuration of the main part, and FIGS.
3 and FIG. 3 are diagrams for explaining the operation.

The folding machine (folding device) 7 of the present invention has been proposed to solve the various problems described in the section of the problem to be solved by the invention, and the basic structure of the folding machine 7 is as follows. This is the same as that described in the section of the prior art. Therefore, the parts and parts common to those of the above-mentioned conventional technology are referred to by the reference numerals used in FIGS. 5 and 6 and the detailed description is omitted.

The folding machine 7 according to the first embodiment has a signature 1
In addition to the conventional folding machine having a triangular plate 4, a saw cylinder 2, an impeller 5, and a paper discharge conveyor 6, etc., the folding position of the folding cylinder 3 'is automatically adjusted according to conditions. It is provided with a possible fold position adjusting device 8. As shown in FIG. 1, the fold position adjusting device 8 includes an input device 9 for inputting an operation speed at the time of operation of a machine (rotary press) at the time of signature formation, an operation ascending speed, a descending speed, paper quality, and the number of pages. And a storage device 10 storing at least a fold position correction value table and an arithmetic expression for the operation speed among conditions (parameters) such as a paper threading route, and phase adjustment based on information and an arithmetic expression stored in the storage device 10. Motor 2 as a driving force source
9, a control device 12 for command-controlling a required output at a required timing, and a control device 1.
An output device 13 for outputting a desired signal based on the command signal from the control device 2; a drive control device 57 for controlling the operation of the motor (phase adjustment driving force source) 29 based on the signal output from the output device 13; The drive unit 14 drives the folding blade 36 to adjust the phase of the drive 36.

Here, various types of structures can be applied to the structure of the driving device 14 for changing and adjusting the relative phase angle between the folding cylinder 3 'and the folding blade shaft 15 incorporated in the folding cylinder 3'. As an example, a drive device 14 shown in FIG. 1 is a drive gear 1 fixed to a shaft 17 of a folding cylinder 3 ′ as a main mechanical element.
8, a gear mechanism (gears 32, 33, 35) connected to rotate the folding blade shaft 15, phase changing means (phase adjusting mechanism) 19 for changing a relative phase between the folding cylinder shaft 17 and the folding blade shaft 15, and It comprises a potentiometer 16 for detecting the amount of phase conversion by the phase changing means 19 and the like. The potentiometer 16 has a folding blade shaft 15
The phase change (rotation) angle (amount) is detected.

Hereinafter, the phase changing means 19 will be described in detail. The phase changing means 19 includes the gears 21, 22 and the shaft 2
3, a helical gear 24, a moving gear 25, a disk 27, a feed screw 28, a motor 29, a bevel gear 30, and the like. As shown in FIG. 1, an outer cylinder 20 that is rotatable relative to the folding cylinder shaft 17 is provided on the outer peripheral side of the folding cylinder shaft 17 and is coaxial with the folding cylinder shaft 17. The folding blade shaft 15 is rotatably supported via a bearing 31 on a flange (eccentric member) 37 integrally formed at one end of the cylinder 20. The folding blade shaft 15 is provided at a position eccentric to the rotation center of the flange 37 (that is, the rotation center of the folding cylinder shaft 17), as shown in the figure.

A key 2 is provided on the outer diameter side of the other end of the outer cylinder 20.
A gear 21 is fixed via the gear 21a.
Meshes with the gear 22. The gear 22 is a drive gear 18
A helical gear 24 is fixedly mounted at one end of a shaft 23 supported by a part of the shaft 23 at the other axial end of the shaft 23. The helical gear 24 meshes with a moving gear (helical gear) 25 having a helical gear.

As shown in FIG. 1, the moving gear 25 is coaxially connected to a gear 18 fixed to the folding cylinder shaft 17 via a sliding key 56, so that the movement of the folding cylinder shaft 17 in the axial direction is not possible. It is configured such that movement in the rotational direction is allowed and is restricted. A disk 27 having a female screw formed at the center is attached to the moving gear 25. A feed screw 28 is screwed into the female screw of the disk 27, and a motor 29 is connected to the feed screw 28 via a bevel gear 30. The feed screw 28 can be rotated in an arbitrary direction via the bevel gear 30 by rotating the motor 29 in the normal and reverse directions.

The potentiometer 16 measures (detects) the displacement of the relative phase between the folding cylinder shaft 17 and the folding blade shaft 15 by reading the rotation angle of the feed screw.
It is supposed to. As described above, the folding blade shaft 15 is supported by the flange 37 integral with the outer cylinder 20 via the bearing 31.
A gear 32 is fixedly mounted on the shaft end of 5.

The gear 32 meshes with a gear 35 fixed to an apparatus frame 34 via an intermediate gear 33. Therefore, under the above-described configuration, the folding cylinder shaft 17 rotates and the folding cylinder 3 '
Rotates, the folding blade shaft 15 revolves around the outer periphery of the fixed gear 35 and rotates at a predetermined rotation speed ratio with the rotation of the folding cylinder 3 ′. The rotation speed ratio is determined by the number of teeth of the gears 32, 33, and 35. Here, the folding blade shaft 15 makes three rotations while the folding cylinder 3 'makes one rotation (that is, the revolution of the folding blade shaft 15 becomes 1). (3 rotations per rotation). Thereby, the tip trajectory of the folding blade 36 becomes as shown by the solid line in FIG.

In the first embodiment, the folding cylinder 3 'is
Although the folding blade shaft 15 is set to rotate three times during the rotation, the invention is not limited to this, and at least the folding cylinder 3 ′ rotates and the folding blade shaft 15 rotates the folding roller 3.
9, the tip of the folding blade 36 may be set to be located between the two rollers 39a and 39b. The phase changing means 19 for changing and adjusting the relative phase angle of the folding blade shaft 15 incorporated in the folding cylinder 3 'is constituted as described above. (That is, the relative extrusion phase with respect to the folding cylinder 3 ') can be appropriately changed.

As shown in FIG. 3, a saw blade receiver 47 and a needle device 49 are attached to the folding cylinder shaft 17 as in the prior art, and the folding cylinder shaft 17 rotates at a predetermined rotation speed. As a result, the saw cylinder 2 and the folding cylinder 3 'rotate synchronously to
The web 38 is cut by the saw blade 46 and the saw blade receiver 47. Since the folding device having the folding position adjusting device according to the first embodiment of the present invention is configured as described above, its function, operation and effect will be described as follows.

The basic operation of the folding machine 7 is the same as that described in the section of the prior art, and in forming the signature 1, first, the webs 3 fed in an overlapped manner are formed.
8 is vertically folded at the triangular plate 4 and inserted into the middle between the saw cylinder 2 and the folding cylinder 3 '. As a result, the web 38 is cut between the saw cylinder 2 and the folding cylinder 3 ', and is folded in two at the center of the cutting length to form the signature 1.

Thereafter, the signature 1 is folded into the folding rollers 39a,
After being transferred to 39b, and conveyed while being pinched, it is dropped and thrown in the middle of the blades of the impeller 5. Then, after the impeller 5 rotates by a predetermined angle, the impeller 5 is transferred onto the discharge conveyor 6 at a desired pitch, and is sequentially sent out through the discharge conveyor 6 to the outside. here,
The operation of the fold position adjusting device 8 when the fold position is fixed will be described. In this case, when a driving force is transmitted from a driving force source (not shown) to the driving gear 18, the driving gear 18 is fixed to the folding cylinder shaft 17. Rotates, and the folding drum 3 'rotates as a whole.

Further, since the relative rotation of the driving gear 18 and the moving gear 25 is restricted, the driving gear 18 and the moving gear 25 rotate integrally. Therefore, the gear 24 does not rotate, so that the shaft 23 and the gear 22
Is also regulated. The gear 2 meshing with the gear 22
Reference numeral 1 indicates that the rotation of the drive gear 18 relative to the outer cylinder 20 is restricted by the key 20a, so that when the drive gear 18 rotates, the drive gear 18, the folding shaft 17, the moving gear 25, and the gear 2
4, there is no relative rotation between the shaft 23, the gear 22, the gear 21, the outer cylinder 20, and the flange 37, and these members rotate integrally.

Thus, the shaft 15 supported by the flange 37 revolves around the central axis of the folding cylinder shaft 17 while rotating. The rotation speed of the rotation at this time depends on the gear ratio determined by the number of teeth of the gear 35, the intermediate gear 33, and the gear 32 fixed to the frame 34. Next, a case where the folding position of the signature sheet 1 is adjusted will be described. In this case, the following operation is performed.

First, the conditions at the time of forming a signature, that is, conditions such as the speed at the time of ascent and the speed at the time of descent of the rotary press, the paper quality, the number of pages, and the paper threading route (influence factors due to the position and path length of the multicolored pages). Among them, at least the fold position correction value corresponding to the speed is tabulated, input to the input device 9 in advance, and stored in the storage device 10. This operation is performed at the time of the first operation of the apparatus or at the time of restart after maintenance, and is not performed every time the printing machine is operated.

When the operation is started, the machine operation speed is input to the input device 9, and a fold correction value corresponding to the machine operation speed is set in the arithmetic unit 11 based on the information in the storage device 10. The rotation angle of the motor 29 corresponding to the value is calculated by the calculation device 11, and the calculation value is transmitted to the output device 13. Then, the calculated value is output to the output device 1
3 to the drive control device 57.

Further, the drive control device 57 controls the motor 2 based on the detection information detected from the potentiometer 16.
9, the motor 29 is driven by an amount corresponding to the fold position correction value sent to the output device 13 from this phase value. Although the detailed operation of the phase changing means 19 will be described later, when the motor 29 is driven, the phase changing means 19 is operated, and the phase of the folding blade shaft 15 with respect to the rotational position of the folding cylinder 3 ', that is, the folding blade 3
6 can be changed before and after in the sheet advancing direction.

That is, the folding blade shaft 15 supported on the flange 37 provided rotatably coaxially with the folding cylinder shaft 17.
Of the folding blade shaft 15 with respect to the saw blade receiver 47 and the needle device 49 provided on the folding cylinder shaft 17 by changing the phase in the rotation direction with respect to the folding cylinder shaft 17, the fold is changed. The position can be changed. In other words, it is the same as rotating the folding cylinder shaft 17 while keeping the folding blade shaft 15 at a predetermined phase position. 3 (the locus A shown in FIG. 3).
When the position is at (point), the position of the saw blade receiver 47 of the folding cylinder shaft 17 (that is, the cutting position) can be adjusted in the rotation direction.

Here, the operation of the phase changing means 19 will be described in detail. When the motor 29 is driven, the feed screw 28 is rotated by the bevel gear 30, and the disk 27 moves in the axial direction of the folding cylinder shaft 17. Since the relative movement of the disk 27 and the moving gear 25 in the axial direction is restricted, the moving gear 25 moves in the axial direction without changing the phase with respect to the folding shaft 17.

As described above, since the moving gear 25 and the gear 24 meshing with the moving gear 25 are both helical gears, the gear 24 moves in the axial direction without rotating, so that the Rotate in the rotation direction according to the torsion angle of. Here, the tooth surface of the gear 24 is shown in FIG.
Assuming that the movable gears 2 are formed in the directions shown in FIGS.
As shown in FIGS. 2 (a) and 2 (c), the gear 24 rotates by a predetermined phase by moving back and forth in the left-right direction in the figure.

By this rotation, the shaft 23 and the gear 22 integral with the gear 24 rotate, and the gear 21 meshing with the gear 23 rotates. Further, since the relative rotation of the gear 21, the outer cylinder 20, and the flange 37 are all restricted, they rotate integrally. At this time, the gear 21, the outer cylinder 20 and the flange 37 are connected to the folding cylinder shaft 1.
7 rotates relatively. In other words, by rotating the motor 29, the flange 37 is
Can be rotated relative to.

Thus, the folding blade shaft 15 supported by the flange 37 revolves around the central axis of the folding cylinder shaft 17, and the folding blade shaft 15 rotates by a gear mechanism including the gear 35 fixed to the frame 34. I do. As a result, the phase of the folding blade shaft 15 and the folding blade 36 attached to the folding blade shaft 15 in the rotation direction with respect to the folding cylinder shaft 17 changes.

The gear 32 fixed to the folding blade shaft 15 rotates while meshing with the intermediate gear 33 meshing with the fixed gear 35 fixed to the apparatus frame 34. The trajectory of the tip of the folding blade 36 fixed to the folding blade shaft 15 is the same as viewed from the fixed side even when it is operated, and the state of the trajectory (solid line) shown in FIG. 3 does not change. In this case, the position of the tip of the folding blade 36 on the above locus changes.

For example, as shown in FIG.
When the saw blade 6 and the saw blade receiver 47 of the folding cylinder 3 'face each other, the tip position of the folding blade 36 is shifted from the point A on the trajectory to the point B or the point C, so that the position of the fold is deviated. Is adjusted. And the potentiometer 16
Thus, the rotation amount of the motor 29 (that is, the rotation amount of the flange 37) is detected, and the detection information from the potentiometer 16 is fed back to the drive control device 57 to control the operation of the motor 29.

After the automatic adjustment of the fold position, if the shift of the fold position is not corrected to the intended state (the allowable range of the shift) (if the shift remains), the apparatus is manually operated. By operating the correction device 40, the shift state can be additionally corrected. The folding device having the folding position adjusting device according to the first embodiment of the present invention functions as described above, and has the following advantages and effects. (1) Correction value of the folding position according to various conditions Is input and stored in advance, and the fold correction value corresponding to the driving speed is calculated to control the fold position. Therefore, basically, the operation of the operator becomes unnecessary, and thus the operator can be made non-skilled. . Further, the fold position can be easily changed in both the forward and backward directions of the traveling direction with respect to the normal fold position. (2) The automatic adjustment of the fold position can be made to follow even when the fold deviation with respect to the speed is different between when the operation speed increases and when the operation speed decreases. (3) It is possible to greatly reduce the waste paper due to the deviation of the folding position. (4) It is possible to obtain various effects such that the shape of the signature 1 becomes out of the specified value and the product quality is improved.

Next, a folding device having a folding position adjusting device according to a second embodiment of the present invention will be described.
FIG. 3 is a schematic diagram showing the configuration of the main part. Similar to the first embodiment, the folding machine 7 according to the second embodiment is proposed to solve various problems described in the section of the related art. Components and parts common to the machine are denoted by the same reference numerals, and description thereof is omitted.

In the second embodiment, the fold position adjusting device 7 described in the first embodiment is further provided with learning means including a quality judgment device 41 and a judgment state storage device 42. . That is, in the fold position adjusting device 7 according to the second embodiment, the conditions for forming the signature 1 [the ascending speed, the descending speed, the number of pages of the rotary press, the paper threading route (the position of the multicolor pages), the paper quality, etc.] ] Is further corrected (corrected) by the manual correction device 40, the data of the manual correction is stored in the determination state storage device 42.

When it is determined that the correction result at this time is good, a signal (good signal) is output by the quality determining device 41. Here, the quality judging device 41 may be configured to output a signal by an operation of the operator when the quality is satisfactory as a result of a person (operator) judging the quality. When a good signal is output from the quality determination device 41 to the determination state storage device 42, the storage device 10
Is replaced with the data stored in the determination state storage device 42, whereby learning is performed.

Although FIG. 4 shows a case where the judgment state storage device 42 is provided independently, a function equivalent to the judgment state storage device 42 may be provided in the storage device 10. . Since the folding device having the folding position adjusting device according to the second embodiment of the present invention is configured as described above, its function, operation and effect will be described below.

In the second embodiment, similarly to the first embodiment, correction values for the positional deviation of the fold are tabulated and stored in the storage device 10 in advance, and the fold position is corrected based on the data. . Here, if the folding position is changed by further correcting (correcting) by the manual correcting device 40 because the folding position correction is insufficient, if the result of the manual correction is good, the quality determining device 41 A good signal is output, and the operating condition and the phase of the folding blade 36 at that time are stored in the storage device 10 by the determination state storage device 42.
Is stored.

The judgment state storage unit 42 averages a set or a plurality of data of the data under the same condition among the manual correction data, and replaces the data with the correction data stored in the storage unit 10. That is, a learning function is provided for the control, and the following advantages and effects can be obtained in addition to the same advantages and effects as the first embodiment. (1) By providing a learning function, correction following a state change can be performed, and more accurate and stable adjustment of a fold position can be performed. (2) Further reduce waste paper, average commercial value (look)
Can be further enhanced. (3) Manual fine adjustment is not required, and further labor saving can be achieved.

The folding device having the folding position adjusting device of the present invention is not limited to the above-mentioned folding device, and can be variously modified without departing from the gist of the present invention. For example, in the storage device 10, an arithmetic expression for calculating a correction value instead of a correction value table for each parameter such as the ascending speed, the descending speed, the number of pages, the paper threading route (the position of the multicolor page), and the paper quality of the rotary press. Only the operation device 11
May be used to calculate the correction value.

[0055]

As described above in detail, according to the folding apparatus having the folding position adjusting device of the present invention, a pair of signatures are paired by the folding blade attached to the rotating drum. A folding device that is configured to be folded between rollers of the fold book, the fold position adjusting device being capable of adjusting a fold position of the fold book, the fold position adjusting device being coaxial with the axis of the folding cylinder. An eccentric member disposed at a position rotatable relative to the axis of the folding cylinder and rotatably supporting the axis of the folding blade at a position eccentric from the axis of the folding cylinder; and an axis of the folding cylinder. A gear mechanism for rotating the rotation axis of the folding blade when the eccentric member and the eccentric member rotate relative to each other; a phase adjustment mechanism for adjusting a relative rotation phase between the eccentric member and the axis of the folding cylinder; A phase adjustment driving force source for driving the mechanism, and detecting a rotational phase of the eccentric member The configuration of that and a dislocation-phase detection means, can be advantageously easily change both directions folding position before and after the traveling direction with respect to the normal of the folding position. In addition, since the fold position is adjusted (corrected) by driving the phase adjustment driving force source, an advanced adjustment technique is not required for the operator, so that the fold position can be easily adjusted. There is an advantage.

According to the folding device having the folding position adjusting device of the present invention, in addition to the configuration of the above-mentioned claim, an input device for capturing the machine operation speed at the time of forming the signature. And a storage device storing at least one condition among conditions such as the machine operation speed, paper quality, the number of pages, and a threading route, and correction information of a fold position corresponding to the at least one condition; Is basically provided with an arithmetic unit for calculating the drive amount of the phase adjustment driving force source based on the information stored in the arithmetic unit and an output unit for outputting the arithmetic result in the arithmetic unit. There is an advantage that the operation is not required and the operator can be made non-skilled.

According to a third aspect of the present invention, in addition to the configuration of the second aspect, the folding device having the folding position adjusting device according to the present invention further includes a processing result obtained by the arithmetic device. When the fold position is manually corrected, the corrected fold position and the machine operation speed at this time are captured, and a fold position correction value corresponding to the machine operation speed stored in the storage device is obtained. With the configuration including the learning means for replacing the fold position with the corrected fold position, the fold position can be corrected according to the state change, and the fold position can be adjusted more accurately and stably. In addition to this, there is an advantage that waste paper can be further reduced and the average commercial value (appearance) can be further increased. In addition, there is an advantage that manual fine adjustment is not required and further labor saving can be achieved. .

According to the folding device having the folding position adjusting device of the present invention described in claim 4, in addition to the configuration of claim 2 or 3, the machine operating speed increases and decreases. With the configuration in which the adjustment of the fold position is performed independently of the time, the correction of the fold position can be made to follow even when the deviation of the fold with respect to the speed is different between when the operating speed increases and when the operating speed decreases. In addition to this, there is an advantage that the waste paper due to the deviation of the folding position can be greatly reduced.
Further, there is an advantage that the shape of the signature is not out of the specified value and the product quality can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic diagram illustrating a main configuration of a folding device having a fold position adjusting device according to a first embodiment of the present invention.

FIGS. 2A to 2C are diagrams for explaining the operation of the folding device having the folding position adjusting device according to the first embodiment of the present invention.

FIG. 3 is a diagram for explaining an operation of the folding device having the folding position adjusting device according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram illustrating a main configuration of a folding device having a folding position adjusting device according to a second embodiment of the present invention.

FIGS. 5A and 5B are diagrams for explaining the structure of a general folding machine installed in a newspaper offset rotary press or the like.

FIG. 6 is a diagram for explaining a configuration and problems of a folding body provided in a general folding machine provided in a newspaper offset rotary press and the like.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 signature 2 saw blade 3, 3 ′ folding drum 4 triangular plate 5 impeller 6 paper discharge conveyor 7 folder 8 folding position adjusting device 9 input device 10 storage device 11 arithmetic device 12 control device 13 output device 14 drive device 15 folding Blade shaft 16 Potentiometer (rotational phase detecting means) 17 Folding cylinder shaft 18 Drive gear 19 Phase changing means (Phase adjusting mechanism) 20 Outer cylinder 21 Gear 22 Gear 23 Axis 24 Housbar gear 25 Moving gear 26 Bearing 27 Disk 28 Feed screw 29 Motor (drive power source for position adjustment) 30 bevel gear 31 bearing 32 gear constituting gear mechanism 33 intermediate gear constituting gear mechanism 34 device frame 35 fixed gear constituting gear mechanism 36 folding blade 37 flange (eccentric member) 38 Web 39 Folding roller 40 Manual correction device 41 Quality judgment device 42 decision state storage device 43 lead-in roller 44 nipping rollers 45 the saw table 46 saw blade 47 Nokoha受 48 needle 49 needle device 50 guide 51 weight 52 shaft 53 lever 54 the spring 55 the guide 56 sliding key 57 drive controller

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Satoshi Matsushima 5007 Itozaki-cho, Mihara-shi, Hiroshima Prefecture Mitsubishi Heavy Industries, Ltd. Paper and Printing Machinery Division F-term (reference) 2C250 EA32 EA41 EB50 3F108 AA01 AB02 AC04 BB02 BB11 CC16

Claims (4)

[Claims] 1. A folding device configured to fold a signature between a pair of rollers by a folding blade attached to a rotation-driven folding cylinder, wherein a fold position of the signature can be adjusted. An adjusting device, wherein the fold position adjusting device is disposed coaxially with the axis of the folding cylinder, is provided so as to be relatively rotatable with respect to the axis of the folding cylinder, and is eccentric from the axis of the folding cylinder. An eccentric member that rotatably supports the axis of the folding blade at a position; a gear mechanism that rotates the axis of rotation of the folding blade when the axis of the folding cylinder and the eccentric member rotate relative to each other; A phase adjustment mechanism for adjusting a relative rotation phase with respect to the axis of the folding cylinder; a phase adjustment driving force source for driving the phase adjustment mechanism; and a rotation phase detection means for detecting a rotation phase of the eccentric member. Folding having a folding position adjusting device, characterized in that: . 2. An input device for inputting a machine operation speed at the time of forming a signature, and at least one of conditions such as the machine operation speed, paper quality, number of pages, and a paper threading route, and corresponding to the at least one condition. A storage device storing correction information of a fold position to be folded, a calculation device for calculating a drive amount of the phase adjustment driving force source based on the information stored in the storage device, and outputting a calculation result in the calculation device. 2. A folding device having a folding position adjusting device according to claim 1, further comprising an output device that performs the folding. 3. When the fold position is further manually corrected with respect to the calculation result obtained by the calculation device, the corrected fold position and the machine operating speed at this time are fetched, and 3. A fold position adjusting device according to claim 2, further comprising a learning means for replacing the fold position correction value corresponding to the machine operating speed stored in the fold position with the corrected fold position. Folding device having 4. The fold according to claim 2, wherein the fold position is adjusted independently when the machine operation speed increases and when the speed decreases. A folding device having an eye position adjusting device.