JPH0785928B2 - Paper threading device for rotary press - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a web threading device in a rotary press for printing a web material such as a web through a predetermined path while changing over a plurality of stretched movable belts. It is about.

[Conventional technology]

Regarding a paper threading technique for threading a predetermined path while changing over a plurality of movable belts, for example, Japanese Patent Publication No. 58-48351 (hereinafter referred to as "Prior Art 1") and Japanese Patent Laid-Open No. 61-76.
No. 368 (hereinafter referred to as "Prior Art 2"), Shokai 6
No. 1-118733 (hereinafter referred to as "conventional technology 3") Japanese Utility Model Laid-Open No. 63-132732 (hereinafter referred to as "conventional technology 4"), Actually No. 63-163940 (hereinafter "" Prior art 5 ") is known.

Prior art 1 is to guide running paper (material paper) by attaching it to a guide belt (movable belt) via a mounting tape.
The transfer of the guide belt (movable belt) is performed by cutting the adhesive tape on which the running paper (material paper) is attached to the first guide belt (movable belt) and supplying another new adhesive tape to the second guide belt. This is done by attaching traveling paper (material paper) to the (movable belt).

Prior art 2 includes a perforated belt (movable belt), and a lead (feed paper entrainer) provided with a protrusion that engages with printing paper (paper) and can be connected to the hole of the perforated belt (movable belt). It is equipped with a lead (feed paper entrainer) engaged with a printing paper (feed paper) and is connected to a perforated belt (movable belt) to thread the paper. When changing the perforated belt (movable belt), the lead (feed paper) is connected. This is done by connecting the projecting portion of the carrying member) to another perforated belt (movable belt) and separating the previously connected perforated belt (movable belt) and the projecting portion. Also, instead of the perforated belt (movable belt), a special mesh cloth belt (movable belt) can be used.

In the prior art 3, a double-sided magic tape (registered trademark, the same applies hereinafter) is attached to the tip of the paper (material paper), and one side of the double-sided magic tape is pressed against the magic tape attached to the surface of the conveyor belt (movable belt) to connect and thread the paper. , The transfer belt can be changed by pressing the other side of the double-sided magic tape attached to the tip of the paper (material paper) to the magic tape attached to the other transfer belt (movable belt) and connecting it. (Movable belt)
This is done by separating the magic tape attached to the surface and one surface of the double-sided magic tape attached to the tip of the paper (paper).

In the prior art 4, a belt or a chain (movable belt) equipped with a magnetic suction unit and an iron piece of a tab attached to the leading end of a paper roll (material) are attracted to the magnetic suction unit of the belt or chain (movable belt). To thread the paper,
To change the belt or chain (movable belt), apply the attracting force of the electromagnet to the magnetic adsorption part of the other belt or chain (movable belt) to move the belt from the magnetic adsorption part that was previously adsorbing the iron piece. Alternatively, it is carried out by taking it to the magnetic adsorption part of the chain (movable belt).

In the prior art 5, the endless rotating body (movable belt) to which the paper joint holder is connected and the tab attached to the front end of the paper roll (material) are connected to the paper joint holder in the front direction of rotation. The paper joint is equipped with a paper joint that can be engaged and disengaged on the side, and tabs attached to the leading end of the roll paper (material paper) are connected to engage the paper joint holder of the endless rotating body (movable belt). In order to change the endless rotating body (movable belt), the endless rotating body (movable belt) is engaged with the joint holder by a paper joint in which tabs attached to the front end of the paper roll (material) are connected. Of the other endless rotating body (movable belt) while rotating the other endless rotating body (movable belt) in which the paper joint holder is connected in parallel with the stopped endless rotating body (movable belt). The above paper joint can be inherited by the paper joint holder. It has become so to do by.
Further, a magnet is provided on the paper joint and / or the paper joint holder to strengthen the engagement between the paper joint and the paper joint holder.

[Problems to be Solved by the Invention]

The publicly known techniques described above have the following problems to be solved.

In the prior art 1, an adhesive tape is used to attach the side edge of the leading end portion of the running paper to the guide belt, and at the time of transfer, the adhesive tape is cut and a new adhesive tape is left with a part left on the guide belt. Is used to attach to other guide belts, and when the number of transfers is large, it is complicated and difficult to clean up and manage the adhesive tape left on the guide belt. There was a problem that running costs were generated.

In the prior art 2, the lead projections are fitted into the holes of the perforated belt to perform the transfer, so that it is necessary to match the phases of the holes of the two belts at the transfer part, which causes a problem of a large control device. However, in order to eliminate such control for matching the phase of the holes, a special belt for paper passing called a special mesh cloth band is required, and there are problems in manufacturing cost and durability of the special mesh cloth.

Prior art 3, prior art 4 and prior art 5 are each a belt with a magic tape attached in prior art 3, a belt with a magnetic attracting portion protruding in prior art 4, and prior art 5.
In this case, a very special paper threading belt such as a belt with a protruding paper joint holder is required, and there is a problem in manufacturing cost. In addition, the prior art 3 has two problems in terms of durability of magic tape. There are problems in controlling the phase of the magnetic attraction portion of the belt.

[Means for Solving the Problems]

DISCLOSURE OF THE INVENTION The present invention aims to eliminate all of the above-mentioned various problems and provide a paper threading device in a rotary press, which does not require the use of a special belt and does not require the phases of the two belts to be matched. In a wheel ring machine that prints by passing web material paper through a predetermined path while changing over a plurality of stretched movable belts, at least two sets made of elastic material are provided on both sides of the base part that links the web material paper. Each of which is provided with one or more sets of belt gripping members, and the distance between the front end portions of the belt gripping members of each set is set to be smaller than the width of the movable belt, and the base is brought into contact with one surface of the movable belt, A paper carrying body in which the belt holding member is brought into contact with the other surface of the movable belt via the side of the movable belt, and the belt holding member of the paper carrying body is pushed in the thickness direction of the movable belt. The belt gripping member has a configuration in which a driving members transfer means arranged to cause transfer of one paper web driving members from the movable belt to another moving belt of the moving belt adjacent is elastically deformed.

[Work]

According to the structure described above, one end of the web material paper is linked to the base portion of the material paper transporting body, and the tip end of the belt gripping member of the material paper transporting body is rotated to the back surface of the movable belt to be gripped by the movable belt. The material carrying member moves according to the movable belt, and the web material paper linked thereto is carried by the material carrying member to perform threading.

The transfer between the movable belts is performed by the material carrying member transferring the movable belt to another movable belt. That is, the movable belt held by the paper feed carrier and another movable belt are held in contact with each other while sandwiching the base portion of the paper feed carrier, and the open end of the belt gripping member of the paper feed carrier is moved by the transporter transfer means. The movable belt is pushed in along the thickness direction, the tip of the belt gripping member is displaced by the thickness of the two movable belts, and is positioned behind the other movable belts. As a result, the tip of the belt gripping member of the material carrying member turns to the back of the other movable belt and is gripped by the other movable belt, and the material carrying member is transferred to the other movable belt.

〔Example〕

The present invention will be described with reference to the drawings showing an embodiment.

In the rotary press, depending on the print content, for example, the relationship between the page layout in newspaper printing and the printing unit used, the presence or absence of color printing, etc.
Several guide paths for the web material are defined from the paper feed section through the printing section to the folding section. In order to guide the web material along these guide paths, as shown in FIG. The belts B, B ... Are driven by a belt driving means (not shown) in parallel with the guide path of the web material, and the guide path branches off at a position P where the adjacent movable belts B, B It is stretched to be close to each other. The guide rollers for guiding the movable belts B, B, ... Have appropriate diameters at positions such as one end of each web material paper guide roller (not shown). Further, at the position P where the guide path is branched, a detecting means (not shown) for detecting the paper carrying body 1 which will be described later and a carrying means transferring means 2 (which will be described later) are respectively provided, and the paper carrying body 1 is connected. The web material W that is linked to and guided by the movable belt B (B1) via the movable belt B (B1) together with the other movable belt B (B
It is designed to transfer to 2) (see Fig. 1).

The material carrying body 1 is, for example, as shown in FIG. 2 (a), and has a base 11 for linking the web material W and the base 11.
Belt holding members 12 and 12 provided on both sides of the belt. The base 11 has substantially the same width as the movable belt B,
It is adapted to follow the surface of the movable belt B. Further, the belt gripping members 12, 12 are formed of elastic material in the shape of a key bent in the opposite direction, and the movable belt B along which the base 11 extends.
It has a shape to hold from both sides, and this facing interval l1
Is smaller than the width 1B of the movable belt B.

FIGS. 2 (b) and 2 (c) show another example of the above-mentioned paper material transporting body 1. In FIG. 2 (c), the base 11 is formed at the intersection of the belt gripping members 12,12. It is a configuration example, and also the second
FIG. 1B shows an example in which the belt gripping members 12, 12 are formed in a shape gently curved in the facing direction.

In the embodiment shown in FIGS. 2 (a), (b) and (c),
Two belt gripping members 12, 12 on each side of the base 11
Although the example in which the above is provided is shown, this is not limited to one set each, and one or more sets may be provided.

The carrier transfer means 2 is, for example, as shown in FIG. 1, and the gripping facing distance l1 of the belt gripping members 12, 12 of the paper carrier 1 held by the movable belt B (B1) is set to the movable belt. A pair of expansion members 21 and 21 for expanding so as to be wider than the width 1B of B, B (B1, B2), their driving members (for example, fluid pressure cylinders) 22, 22, and elastic deformation due to this expansion. A pushing member 23 for pushing the open end side of the belt gripping members 12, 12 along the thickness direction of the movable belts B, B (B1, B2) and its driving member (for example, a fluid pressure cylinder) 24, The movable belt B (B1) is provided with a contacting / separating mechanism 25 that simultaneously approaches and separates the respective members from the movable belt B (B1), and further sandwiches the movable belts B and B (B1 and B2) as necessary. The width direction of the rear pressing members 26, 26 and the movable belts B, B (B1, B2) provided at the positions facing the driver transfer means 2. Comprising an appropriate belt aligning means (not shown) align.

Next, the operation of the above configuration will be described with reference to FIG. 1, FIGS. 3 (a) to 3 (f), and FIG. In the following description, for the sake of convenience, the movable belt on which the paper material transporting body 1 is gripped will be referred to as B1, and the movable belt that the paper feed material transporting body 1 will grip at the position P where the guide path branches will be described as B2. Further, the web material paper W is omitted in FIGS. 3 (a) to 3 (f).

First, the starting end portion of the web material W is formed into a cutout shape and reinforced with a reinforcing tape (not shown) along each side edge thereof, and further, the leading end portion is appropriately folded to form a linking end W1. Then, fasten this to the base 11 of the paper carrying body 1 with an adhesive tape T,
The paper carrying body 1 is held by the movable belt B1 by the belt holding members 12, 12 (see FIG. 5). continue,
A web material guide path matching the print content is input and designated to the operation control means (not shown), and the belt drive means (not shown)
Is operated to displace the phase of the movable belt B1. Movable belt
The material carrying body 1 gripped by B1 carries the web material W along with the displacement of the movable belt B1 and moves while passing the web material W through the guide path (see FIG. 3 (a)).

A position at which the guide path at which the paper web carrier 1 needs to be transferred from the movable belt B1 to another movable belt B2 in order to pass the web paper W through the designated web paper guide path branches (hereinafter referred to as a "branch position"). ) When the paper material transporting body 1 that links the web material paper W approaches P), the detection means (not shown) provided at the branch position P detects this and sends a detection signal. Due to this detection signal, the belt driving means (not shown) is stopped and the driver transfer means 2 starts the transfer operation.

The transfer operation of the driver transfer means 2 is performed as follows.

First, the contacting / separating mechanism 25 is actuated, and the expansion members 21, 21 and their driving members 22, 22, and the pushing member 23 and its driving member 24 are simultaneously moved from the waiting position separated from the movable belt B1 to the movable belt. It is displaced to the position where it comes into close contact with B1. First
In the configuration of the embodiment shown in the drawing, for example, the output shaft of the driving body 51 which is a pneumatic rotary cylinder fixed to the frame F.
The bracket 54 is rotated by a predetermined angle and is connected to the output shaft 52 via a crank body 53 that is connected to the output shaft 52.
Is done by displacing. When the displacement is completed, the crank body 53 is set to be in a deadlock state. In this state, the movable belts B1 and B2 move the rear holding members 26, 26 and the expansion members 21, 2
It is preferable to be placed between 1. Further, the two movable belts B1 and B2 are sandwiched so as to be aligned in the width direction (see FIGS. 1 and 3 (b)).

Then, the rods of the fluid pressure cylinders, which are the drive members 22 and 22 of the expansion members 21 and 21, retract, and the expansion members 21 and 21 are displaced toward the outside of the movable belts B1 and B2, respectively, and the paper feed member 1 The belt gripping members 12, 12 of
Is elastically displaced so as to be larger than the width 1B of the two movable belts B1 and B2 (see FIG. 3 (c)).

Further, the fluid pressure cylinder rod, which is the driving member 24 of the pushing member 23, extends to move the pushing member 23 to the movable belt.
The expansion member is displaced from the B1 side toward the movable belt B2 side.
The belt gripping members 12, 12 ... Of the material transporting body 1 elastically displaced by the displacements 21, 21 are elastically displaced along the thickness direction of the two overlapping movable belts B1, B2 (third part).
See FIG. (D)).

The paper carrying body 1 along the thickness direction of the movable belts B1 and B2
The elastic displacement of the belt gripping members 12, 12, ... of the belt gripping members 12, 12, ..., The open end of each belt gripping member 12, 12, ... Overlapping 2
As soon as the movable belts B1 and B2 have been elastically displaced by the thickness of the movable belts B1 and B2, the belt gripping members 12, 12 ... Movable belt B due to the elastic recovery of the open ends of 12, 12 ...
2 goes around behind, and the paper material carrier 1 is separated from the movable belt B1 and is gripped by the movable belt B2 (see FIG. 3 (e)),
The transfer is completed.

When the transfer is completed, the output shaft 52 of the driving body 51 is rotated in the opposite direction to the above, the bracket 54 is displaced through the crank body 53, and the expansion members 21 and 21 and their driving members 22 and 22, and
The pushing member 23 and its driving member 24 are simultaneously displaced to a standby position apart from the movable belt B1 (see FIG. 3 (f)), and at least the phase of the movable belt B2 is displaced. Due to this displacement, the paper carrying body 1 which has been transferred to and gripped by the movable belt B2 carries the web material W along with the displacement of the movable belt B2 in the same manner as the movement by the movable belt B1.

Incidentally, the extension of the rod of the fluid pressure cylinder which is the drive member 22 for returning the expansion members 21, 21 to the position before the operation, and
A drive member 24 for returning the pushing member 23 to the position before the operation.
The retraction of the rod of the fluid pressure cylinder is appropriately performed after the transfer is completed.

6 (a), (b), (c) and FIG. 7 (a),
(B) shows another embodiment of the present invention, which will be described below.

The driving body transferring means 2'shown in FIG. 6 (a) is a mechanism in which the expansion member 21 and its driving member 22 of the driving body transferring means 2 shown in FIG. 1 are deleted, and the paper stock held on the movable belt B1 is removed. The belt gripping member 12 of the carrier 1 is pushed into the pushing member 23.
With this, the belt gripping member 12 is elastically displaced by being strongly pushed in the thickness direction of the movable belts B1 and B2, and the movable belt B1 is forcibly gripped and replaced by the movable belt B2. In this case, the material carrying body 1 shown in FIGS. 2 (a) and 2 (c) is preferable.

The driving body transferring means 2 ″ shown in FIG. 6 (b) is provided with a protrusion 23a on the pushing member 23 in the driving body transferring means 2 ′ shown in FIG. 6 (a), which is gripped by the movable belt B1. The feeding member 1 '(see FIG. 6 (c)) is engaged with the pocket 12a provided on the belt gripping member 12, and the pushing member 23 is strongly pushed in the thickness direction of the movable belts B1 and B2. By this, the elastic member 12 is elastically displaced, and the movable belt B1 is forcibly gripped and replaced by the movable belt B2. According to this means, the protrusion 23a of the pushing member 23 is pushed during the pushing operation. The belt gripping member 12 does not escape from the pushing member 23 by engaging with the edge portion 12a of the belt gripping member 12. The paper feed member 1'is not limited to the one shown in Fig. 6 (c), but the belt gripping member 1'is not limited to the one shown in Fig. 6 (c). It is sufficient if the holding member 12 is provided with the pocket portion 12a. .

The transporter transfer means 7 shown in FIG. 7 (a) is provided at the branch position P of the guide path together with the detection means (not shown) for detecting the paper transporter 1 ″, and the transporter 1 ″
A guide member 7 for expanding the open end distance l1 of the belt gripping member 12 and elastically displacing it along the thickness of the movable belts B1, B2.
2 and a drive member 71 that moves the guide member 72 closer to, abuts, or separates from the movable belt B1. 6,6, ...
Is a pressing roller that is urged so that the movable belts B1 and B2 are overlapped.

FIG. 7 (b) shows a paper carrying body 1 ″ which is suitable for the carrying body transferring means 7, and the belt gripping member 12
One side has a shape in which the open end is folded back.

The guide member 72 has a first guide portion 72a formed in a tapered shape to spread the belt gripping members 12 and 12 in the width direction of the movable belt B1 and the spread belt gripping member 12 to the movable belt B1. And a second guide portion 72b formed in a slanted shape to be pushed in in the thickness direction.

The operation in the embodiment shown in FIGS. 7 (a) and 7 (b) is as follows.

First of all, the material carrying member 1 ″ having the linking end W1 of the web material W held on the base 11 is gripped by the movable belt B1 by the belt gripping member 12. At this time, the material carrying member 1 ″ is the belt gripping member.
The side where the open end of 12 is folded back is grasped so as to be the rear side when moving according to the displacement of the movable belt B1.

Next, the movable belt B1 is displaced to move the material web transporting body 1 ″ to carry the web material paper W linked thereto, and pass the web material paper W through the guide path.

At the branch position P for selecting a predetermined guide route, the paper carrier 1 ″
When is reached, detection means (not shown) detects this and sends a detection signal. Due to this detection signal, the rod of the fluid pressure cylinder attached to the frame F shown by the chain double-dashed line in FIG.
The 72 is displaced from the standby position separated from the movable belt B1 to the operating position where it abuts on the movable belt B1. Due to this displacement, the movable belt B1 is overlapped with another movable belt B2 from the side of the base 11 of the paper feed member 1 ″ gripped by the movable belt B1.

Movable belt B1 continues displacement as it is, other movable belts
B2 is displaced at substantially the same speed and in the same direction as movable belt B1.

When the material carrying member 1 ″ that moves according to the displacement of the movable belt B1 reaches the guide member 72 that is displaced to the operating position, the leading belt gripping members 12, 1 follow the movement of the material carrying member 1 ″.
First, the open end of 2 is guided by the first guide portion 72a of the guide member 72 and elastically displaced so as to expand the interval l1, and subsequently guided by the second guide portion 72b, so that the two movable portions overlap. The belts B1 and B2 are elastically displaced along the thickness direction. During the displacement along the thickness direction, the elastic displacement in which the open end distance is expanded is maintained by the side surfaces of the movable belts B1 and B2. When the latter displacement is completely displaced by the thickness of the movable belts B1 and B2, there is nothing forcing the elastic displacement by expanding the open end distance, and the open ends of the belt gripping members 12 and 12 elastically return to other positions. It wraps around behind the movable belt B2 and is caught by another movable belt B2. Due to this elastic return, the portion protruding from the width of the movable belts B1 and B2 of the material carrying body 1 ″,
The guide member 72 can now pass through the carrier passing gap 72c, and the paper carrier 1 ″ continues to move.

By continuing the movement, the elastic member 12, 12 on the trailing side of the paper carrying body 1 ″
When the open end of the trailing side belt gripping member 12, 12 reaches the position of the guide member 72,
Similarly to the above, the first guide portion 72a and the second guide portion 72b are elastically displaced and gripped by another movable belt B2.

As described above, the material carrying body 1 ″ completely separates from the movable belt B1 and completes the transfer to the other movable belt B2, and moves according to the displacement of the other movable belt B2.

During this transfer, the feeding roller 1 ″ is prevented from being pushed back by the guide member 72 to move on the movable belt B1 by the pressing rollers 6, 6, 6 ...
During B2, the base portion 11 of the paper carry member 1 ″ is pressed.

The retraction of the rod of the fluid pressure cylinder (driving member 71) for displacing the guide member 72 from the working position to the standby position is performed by the detection signal of the transfer completion detecting means (not shown) after the completion of the transfer, or by a predetermined time by a timer. It is appropriately performed according to the progress signal.

7 (a) shows an example in which the presser rollers 6,6,6 ... Clamp the two movable belts B1, B2 at all times.
6A, 6A, 6A, 6B, 6A, 6B, 6A, 6B, 6A, 6B may be adapted to perform the depressing action and the release thereof in conformity with the displacement of the guide member 72 from the standby position to the operating position and the displacement from the operating position to the standby position.

The transfer between the movable belts B1 and B2 as explained above is
The web material W is threaded through the designated predetermined guide path by being sequentially performed as appropriate.

The present invention is not limited to the above-described embodiments, but includes design modifications without departing from the scope of the claims.

〔The invention's effect〕

As described above, according to the embodiment of the present invention, a normal paper threading belt is used, and it is not necessary to match the phases of the two movable belts involved in the transfer at the branch position of the guide path. Since it is possible to transfer the web material between the two movable belts without leaving any unnecessary residue on the movable belts, the manufacturing cost is low and the running cost is low. It is possible to provide a paper threading device that is easy and easy to handle.

[Brief description of drawings]

FIG. 1 is a perspective view showing a schematic configuration of a main part of an embodiment of the present invention, FIGS. 2 (a), (b) and (c) are perspective views showing an example of a material carrying member, and FIG. 3 (a). ) To (f) are perspective views sequentially showing states of the present invention when a movable belt of the paper feeding member is changed, and FIG. 4 is a schematic configuration diagram of a rotary press capable of providing the paper threading device of the present invention. FIG. 6 is an enlarged perspective view of the portion of the paper web transporter in which the paper web transporter having the leading end of the take-up web web is held by the movable belt, and FIGS. 6 (a), 6 (b) and 7 are shown. (A) is a perspective view showing a schematic configuration of a main part of an embodiment different from the embodiment shown in FIG. 1,
FIGS. 6 (c) and 7 (b) show FIGS. 2 (a),
FIG. 8 is a perspective view showing an example of a paper material carrying body different from the embodiment shown in FIGS. 1,1 ', 1 "is a paper carrier, 2,2', 2", 7 is a carrier transfer means, 6 is a pressing roller, 11 is a base, 12 is a belt gripping member,
12a is a foot portion, 21 is an expansion member, 22 is an expansion member driving member, 23 is a pushing member, 23a is a protrusion, 24 is a pushing member driving member, 25 is a contacting / separating mechanism, 26 is a rear pressing member, and 51 is Driver for contact / separation mechanism, 52 for output shaft, 53 for crank, 54 for bracket, 71 for drive member, 72 for guide member, 72a for first guide part, 72b for second guide part, 72c for entrainer Passage void, B, B1, B2 are movable belts, F is a frame, P is a position where the guide path is branched (branch position), T is an adhesive tape, W is a web material, W1 is a link end of the web material, and l1 is The distance between the open ends of the elastic members of the paper transporter, 1B is the movable belt width.

Claims (1)

[Claims] 1. A rotary press for printing by passing a web material through a predetermined path while changing over a plurality of tensioned movable belts, and at least two elastic materials are provided on both sides of a base portion for linking the web material. Each of the belt gripping members is provided with at least one set, and the distance between the front ends of the belt gripping members of each set is set to be smaller than the width of the movable belt so that the base portion contacts one surface of the movable belt. In addition, the paper gripping member in which the belt gripping member is brought into contact with the other surface of the movable belt via the side of the movable belt, and the belt gripping member of the paper feeding member is arranged in the thickness direction of the movable belt. And a carrier transfer means configured to elastically deform the belt gripping member to transfer the paper carrier from one movable belt of the adjacent movable belts to the other movable belt. Paper threading device in a rotary press, characterized.