JPH04341456A - Reinforcing method for running sheet and its device - Google Patents

Abstract

PURPOSE:To prevent breakage of a running sheet and make secure passing of it automatically by sticking the tips of two tapes to both surfaces of a paper guide, feeding the tip of the running sheet between a clearance of these sticking surfaces, and passing the sticking surfaces against both surfaces of a part of the tip of the running sheet for sticking. CONSTITUTION:A control part closes two sticking rollers 23, sticks a tape 22 on both sides of a paper guide 18, and opened the sticking rollers 23 after the paper guide 18 moves forward between the pressing rollers 26. Then a running sheet 2 is moved forward and cut by means of an auxiliary slitter knife 8. When the running sheet 2 moves forward and arrives between the sticking rollers 23, the control part closes the sticking rollers 23 to stick the tape 22 on both surfaces of the running sheet 2 and, at the same time, activate the main slit knife 3 to cut of the running sheet 2. When the side reinforcing material for the sheet is fed between the pressing rollers 26 and the top end of the running sheet 2 comes just before the auxiliary slitter knife 8, the control part opens the sticking rollers 23 and cuts the tape 22 by means of the tape cutter 25.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for reinforcing running paper by attaching tape to the leading edge of the running paper that joins an index member during paper threading in a rotary press. .

0002

2. Description of the Related Art Conventionally, paper threading in a rotary press has been carried out by gripping the leading end of the running paper to an index portion made of three coiled springs, as shown in Japanese Patent Application Laid-Open No. 63-295261. This was done by moving the index member to the fold.

0003

[Problems to be Solved by the Invention] However, as the number of newspaper pages has increased significantly in recent years, the movement path of the indexing member that guides the running paper and conveys it to the folding section has become more twisted, and the distance has also increased. become longer. For this reason, a drawback has emerged in that large tension is applied to the portion of the leading edge of the running paper that joins with the index member, causing the running paper to break. In particular, in the case of a GS paper index member that requires changing the direction of the running paper, the moving path is complicated and the running paper is more likely to break. As a result, there is a problem in that automatic paper threading of the running paper becomes impossible, and subsequent processing becomes extremely troublesome.

The present invention was developed in view of the above-mentioned problems.As the number of newspaper pages increases, the path for guiding the running paper to the folding section becomes complicated and long. To provide a method and device for reinforcing running paper, which prevents the leading edge of the running paper from breaking even if it is at the bottom, and ensures automatic threading of the running paper.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the method of the present invention involves attaching the tips of two tapes to both sides of a paper guide that guides the running paper along the guide rail to the folding section. At the same time, the two tapes are arranged so that their adhesive surfaces face each other with a certain gap between them, and then a part of the tip of the running paper is fed into the gap between the two tapes. There is a method in which the adhesive side of the tape is pressed against both sides of the leading edge of the running paper, and preferably the leading edge of the running paper is pressed against both sides of the running paper.
This is the side of S paper that is closer to HS paper.

[0006] The device of the present invention also includes a paper guide that guides the running paper along the guide rail to the folding section, and two tapes that are fed onto the path of the paper guide with their adhesive surfaces facing each other. the respective tape reels, which perform opening and closing movements based on the passage of the paper guide, and adhere the two tapes to the paper guide and the running paper, and the rear part of the tape that is affixed to the running paper. The present invention is equipped with a tape cutter for cutting the paper, and preferably a pressure roll for further pressure-bonding the tape adhered to the paper guide and the running paper.

[0007]

According to the above invention, the leading ends of the reinforcing tape are attached to both sides of the paper guide for indexing and conveying the running paper. Then, the rear part of this tape is attached from both sides to the part of the leading edge of the running paper where the most tension is applied to reinforce it.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic perspective view of a main part of an embodiment of the apparatus of the present invention, FIG. 2 is a side view (viewed in the direction of arrow A in FIG. 1), and FIG. 3 is a plan view. With these drawings,
First, a device according to an embodiment of the present invention will be explained. The illustrated device is arranged in the running paper cutting section 100 in front of the turn bar, and a tape is attached to the side of the GS paper closer to the HS paper. That is, the traveling paper is cut at the center by a slitter and divided into the HS paper side and the GS paper side, but as described above, the movement path of the GS paper side becomes complicated. Therefore, the reinforcing tape is usually attached to the GS paper closer to the HS paper side.

In FIG. 1, 1 indicates side frames H, S.
The drag roller is supported by a drag roller and is driven in synchronization with the speed of the rotary printing press. Move the printed paper 2 across the entire width from side to side at the center of the drag roller 1.
A circular main slitter knife 3 with an independent motor for dividing the S paper 2a and the GS paper 2b into two (see Fig. 3) is attached to an arm 5 fixed to the middle of a support rod 4 supported on side frames H and S. It is pivoted at the tip. Arms 6, 6 are fixed to the outer ends of the support rod 4 on the side frames H, S, and the tips of the arms 6, 6 connect to the pistons of cylinders 7, 7 provided on the inner surfaces of the side frames H, S. At the tip of the rod,
They are rotatably connected. Therefore, the outer peripheral lower edge of the main slitter knife 3 moves back and forth with respect to the running paper 2 passing over the drag roller 1 by the operation of the cylinders 7, 7.

The auxiliary slitter knife 8 is arranged on the same straight line in the running direction of the main slitter knife 3 and the running paper 3.
Cutting is performed from the tip of the running paper 3 to the cutting location by the main slitter knife 3. This auxiliary slitter knife 8 is also moved forward and backward relative to the running paper 3 by a drive means (not shown).

The turn bars 9 and 10 are for moving the path of the GS paper 2b to the position in the width direction of the HS paper 2a, and support rods 11 are supported on the side frames H and S at an angle of 45 degrees with respect to the paper flow. , 12 via brackets (not shown), and one turn bar 9 is positioned above the other turn bar 10 by the diameter of the bar.

A first guide rail 13 is installed on the side frame H side of the drag roller 1. This first guide rail 13 passes through a paper feeding section and a printing section (not shown), reaches a traveling paper cutting section 100, and further passes through a folding section 200 from here.
(See Figure 4). Further, from the traveling paper cutting section 100 to the folding section 200, a second guide rail 1 is arranged so as to correspond to the side of the GS paper 2b closer to the HS paper.
4 has been constructed (see Figure 4).

These first and second guide rails 13,
As shown in FIG. 5, the box 14 has openings 13a and 14a formed in the longitudinal direction of the center of one side surface. A plurality of rolling members 15 are provided inside the box-shaped guide rails 13 and 14, and the rolling members 15 further include the guide rails 13 and 15 as shown in FIGS.
A long tape shuttle 16 with one end protruding from the opening of 14 is attached. Further, a pin member 17 is attached to an arbitrary position on the side of the tip of the tape shuttle protruding from the guide rails 13 and 14, and a paper guide 18 is attached to the tip of this pin member 17. On the other hand, a sprocket hole 19 is provided in the longitudinal direction of the tape shuttle 16, and a sprocket (not shown) meshes with the sprocket hole 19. Therefore, when the sprocket is rotated, the tape shuttle 16 moves, and as a result, the paper guide 18 moves while being guided by the guide rails 13 and 14. These tape shuttle 16, pin member 17, paper guide 18, etc. constitute an index member.

Next, the main structure of the running paper reinforcing device according to the embodiment will be explained with reference to FIGS. 1 to 3. This embodiment shows an example of a device for reinforcing the side of the GS paper 2b closer to the HS paper 2a. The reinforcing device includes tape reels 21, 21 around which tapes 22, 22 are wound, sticking rolls 23, 23,
A cylinder 24 that swings the pasting rolls 23, 23,
24, and cutters 25, 25 for cutting the tapes 22, 22.
and the pressure rolls 26, 26 to the HS paper 2a of the GS paper 2b.
A first sensor 27 is placed above and below the adjacent side passage, and a first sensor 27 is placed above the passage.
and a second sensor 28 are arranged. Further, a third sensor 29 and a fourth sensor 30 are arranged at arbitrary positions on the path through which the GS paper 2b passes.

Although not shown, the tape reels 21, 21 are equipped with a rotation drive means for feeding out the tapes 22, 22, and a brake means for preventing reverse rotation of the reels when cutting the tapes 22, 22, which will be described later. It is equipped with Moreover, only one side of the tapes 22, 22 that does not come into contact with the adhesive rolls 23, 23 is an adhesive surface coated with an adhesive. The pasting rolls 23, 23 have fulcrums 23a, 23a at the center.
It is pivotally connected to one end of a swinging rod 23b, 23b having a
The cylinder 2 connected to the other end of the swinging rods 23b, 23b
4 and 24, and performs an opening/closing movement (advance/retreat movement) with respect to the passage of the traveling paper 2 and paper guide 18.

[0016] The cutters 25, 25 have cylinders 25a, 2
5a, and these cylinders 25a, 25
By the operation of a, the tapes 22, 22 are moved forward and backward, and the rear portions of the tapes 22, 22 stuck to the running paper 2 are cut. The pressure rolls 26, 26 pinch the tapes 22, 22 stuck to the running paper 2 and the paper guide 18 from both upper and lower sides, and firmly stick them to the tape 2. On the other hand, the first to fourth sensors 27 to 30 operate as follows. The first sensor 27 detects that the paper guide 18 is in the initial state, that is, positioned between the adhesive rolls 23 and 23. The second sensor 28 indicates that the paper guide 18 is connected to the pressure roll 26.
, 26 is detected. Third sensor 29
In this case, the side of the GS paper 2b closer to the HS paper is attached to the adhesive rolls 23, 2.
It is detected that the message was sent between 3 and 3. Fourth sensor 30
In this case, the side of the GS paper 2b closer to the HS paper is the pressure roll 26, 2
It is detected that the message was sent between 6 and 6.

On the other hand, the second guide rail 14 described above is
The starting point is provided immediately after the auxiliary slitter knife 8, and the opening 14a in the longitudinal direction of the side surface is located on the same plane as the passage of the running paper 2. The paper guide 18 is then projected in the direction of the main slitter knife 3 by the tape shuttle 16, and therefore extends beyond the starting point of the second guide rail 14 and extends past the adhesive roll 23.
, 23 can be reached.

The apparatus of this embodiment also has a control section, although not shown. This control unit receives signals from an operation unit (not shown) and the first to fourth sensors 27, 28, 29, 30.
Based on signals from the main slitter knife 3, auxiliary slitter knife 8, tape reels 21, 21, sticking rollers 23, 23, tape cutters 25, 25, etc., operating signals are output.

Next, an embodiment of a running paper reinforcing method carried out using the embodiment apparatus having the above structure will be described with reference to FIGS. 7 to 11. (2) In the initial state, the main slitter knife 3, the auxiliary slitter knife 8, and the pasting rolls 23, 23 are located away from the passage of the running paper 2 (GS paper 2b). Further, the paper guide 18 projects from the second guide rail 14 and is located between the adhesive rolls 23, 23 (FIG. 7).

[0020] Here, the first sensor 27
The paper guide 18 is located between 3 and 23,
That is, when detecting that the paper guide 18 is in the initial state (standby) position, the control section operates the cylinders 24, 24 to swing the two sticking rolls 23, 23 in the closing direction. As a result, the tapes 22, 22 are attached to both sides of the paper guide 18 (FIG. 8).

■The paper guide 18 moves forward (moves in the direction of returning to the second guide rail 14), and the pressure rolls 26, 26
When the second sensor 28 reaches this point, the second sensor 28 detects this. As a result, the control section stops the advance of the paper guide 18 and moves the pasting rolls 23, 23 backward to open them. Next, the control unit starts the advance of the running paper 2 and puts the auxiliary slitter knife 8 into the slitter state.
The running paper is cut (FIG. 9).

■ The running paper 2 moves forward, and the pasting rolls 23, 2
3, the third sensor 29 detects this. As a result, the control unit closes the adhesive rolls 23, 23, and adheres the tapes 22, 22 to both sides of the running paper 2 (the side of the GS paper 2b closer to the HS paper 2a). At the same time, the control section puts the main slitter knife 3 in the attached state and starts cutting the running paper 2 (FIG. 10), and after a certain period of time, makes the auxiliary slitter knife 8 go in the released state.

■As the paper guide 18 and the running paper 2 move forward, the side of the GS paper 2b closer to the HS paper is pressed against the pressure rolls 26, 2.
The fourth sensor 30 detects that the leading edge of the running paper 2 (GS paper 2b) is located just in front of the auxiliary slitter knife 8. As a result, the control section controls the pasting roll 23.
, 23 are opened, and the tape cutters 25, 25 are advanced to cut the tapes 22, 22 (FIG. 11). Note that when the tapes 22, 22 are cut, the tape reels 21, 21 try to rotate in the opposite direction due to the reaction caused by the release of tension, but as described above, the tape reels 21, 21 are equipped with a brake means, so that the tape reels 21, 21 do not rotate in the reverse direction. I don't. Therefore, if the tapes 22, 22 are given in advance the property of being curved toward the side opposite to the adhering surface, the ends of the cut tapes 22, 22 can be maintained in a curled state as shown in FIG. Further, since the main slitter knife 3 and the auxiliary slitter knife 8 are located on the same straight line in the running direction of the running paper 2, the auxiliary slitter knife 3 only moves up and down, and moves in the width direction of the running paper 2. will not be moved. Therefore, the structure of the auxiliary slitter knife 3 is simpler than the conventional one.

[0024] In this way, the GS paper 2b, whose side edges closer to the HS paper are reinforced with tapes 22, 22, is pulled by the paper guide 18 and guided by the second guide rail 14 to the folding part 200. The paper is transported and threaded.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention. For example, the configuration of each part of the traveling device described above may be replaced with another configuration as long as the functions to be performed are not impaired, and each step in the traveling method described above may operate as long as it performs the necessary function. The steps may be different. Furthermore, the traveling device and traveling method of the present invention can be applied in substantially the same way not only to reinforcing GS paper but also to reinforcing HS paper with tape.

[0026]

As described above, according to the method of the present invention, it is possible to reliably reinforce with tape the portion of the running paper that is joined to the index member. Further, according to the device of the present invention, the above method can be easily carried out using a simple device. As a result, even when the number of newspaper pages increases and the path of the indexing member that guides the running paper becomes curved and long, the automatic paper threading of the running paper is prevented by preventing the leading edge of the running paper from breaking. possible.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of essential parts of an embodiment of the device of the present invention.

FIG. 2 is a side view (view from arrow A in FIG. 1) of one embodiment of the device of the present invention.

FIG. 3 is a plan view of one embodiment of the device of the present invention.

FIG. 4 is a simplified perspective view showing the arrangement of guide rails.

FIG. 5 is an enlarged sectional view showing the relationship between the guide rail and the paper guide.

FIG. 6 is an enlarged plan view showing the tape shuttle, paper guide, etc.

FIG. 7 is an explanatory diagram of a method according to an embodiment of the present invention.

FIG. 8 is an explanatory diagram of a method according to an embodiment of the present invention.

FIG. 9 is an explanatory diagram of a method according to an embodiment of the present invention.

FIG. 10 is an explanatory diagram of a method according to an embodiment of the present invention.

FIG. 11 is an explanatory diagram of a method according to an embodiment of the present invention.

[Explanation of symbols]

2...Running paper 2a...HS paper 2b...GS paper 3...Main slitter knife 8...Auxiliary slitter knife 9,10...Turn bar 13, 14...Guide rail 21, 21...tape reel 22, 22... tape 23, 23...Adhesive roll 25, 25...Cutter 26, 26...Crimping roll 27...first sensor 28...Second sensor 29...Third sensor 30...Fourth sensor

Claims (4)

[Claims] Claim 1: The tips of two tapes are attached to both sides of a paper guide that guides the running paper along the guide rail to the folding part, and the attachment surfaces of the two tapes are fixed. Arranged so as to face each other with a gap,
Next, a part of the leading end of the running paper is fed into the gap between the two tapes, and then the adhesion surfaces of the two tapes are pressed against both sides of the leading part of the running paper to stick it. A method of reinforcing running paper. 2. The method for reinforcing running paper according to claim 1, wherein a portion of the leading end of the running paper is a side of GS paper closer to HS paper. 3. A paper guide that guides the running paper along the guide rail to the folding section, and each tape reel that supplies two tapes with their adhesive surfaces facing each other to the passage of the paper guide. , an adhesive roll that performs opening and closing movements centering on the passage of the paper guide and adheres the two tapes to the paper guide and the running paper, and a tape cutter that cuts the rear part of the tape stuck to the running paper. A reinforcing device for running paper, comprising: 4. The running paper reinforcing device according to claim 4, further comprising a paper guide and a pressure roll for further pressing the tape attached to the running paper.