JP2987255B2 - Traveling cutter type butt splice method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a splicing method and apparatus, and more particularly to a so-called butt splicing method and apparatus in which two ends of two webs to be joined are butt-joined.

[0002]

2. Description of the Related Art Generally, in a rotary printing press, a paper processing machine, or the like, when a web on a web roll is consumed, a web on a new web roll is bat spliced on the web. However, in the past, it was necessary to temporarily stop the machine at the butt splice, which caused a drawback such as a reduction in the operation rate of the machine. Therefore, the present applicant has previously developed and proposed a new technique for solving the above-mentioned drawback, that is, stopping the machine (see Japanese Patent Publication No. 55-48058). Hereinafter, this technique will be briefly described.

[0003] This technique basically employs a paper feeding unit 1 formed by both web rolls 10a and 10b as shown in FIG.
2, a butt splice portion 18 formed by the movable cutting blade cylinder 14 and the fixed cutting blade receiving cylinder 16, and the accumulator means 2
And an accumulator section 22 formed of zero.
As shown in FIGS. 10 and 11, the cutting blade cylinder 14 and the cutting blade receiving cylinder 16 are located at positions separated by 90 °, respectively, at the saw blade type cutter 24, the tape base 26 and the saw blade receiving groove 2.
8, a tape base surface 30, and driving means 32, 3
4 through the above-mentioned 90.degree.
Is configured to move up and down during the rotation.

In such a configuration, when the old web 36 on the web roll 10a is consumed, first,
The old web 36 stops pressing between the brake roller 38 and the movable press roller 40 (FIG. 11), and the new web 42 on the web roll 10b is fixed to the mounting portion 14a of the cutting drum 14 in advance. By rotating the cutting blade cylinder 14 and the cutting blade receiving cylinder 16 to the cutting position (FIG. 10), and further lowering the cutting blade cylinder 14 by the driving means 44,
Through the saw blade type cutter 24 and the cutting blade receiving groove 28,
The old webs 36 and 42 are cut. At this time, as shown in FIG. 11, the cut old web 36 is pressed by the pressing plate 46, and the remaining portion 36a is rewound on the web roll 10a by the brake motor of the sheet feeding unit 12.
On the other hand, the cut new web 42 is held by the suction sucker 48, and an unnecessary portion (remaining portion) 42a is held on the mounting portion 14a. Next, after the cutting blade cylinder 14 is once raised, the cutting blade cylinder 14 and the cutting
By rotating the tape receiving position (FIG. 11) to set the tape receiving position (FIG. 11), the cutting blade cylinder 14 is lowered again, and both tape base surfaces 26 and 30 are pressed against each other (FIG. 12).
Adhesive tapes 50, 50 on the new and old webs 3
6 and 42 are stuck on both sides of the cut butted portion 52.

As described above, according to the above technique, the butt splice can be performed automatically in a short time.
By supplying the web during this time via the accumulator section, the butt splice can be achieved without stopping the machine.

[0006]

However, it has been found that the above-mentioned technique (hereinafter referred to as "prior art") has some drawbacks to be improved.

That is, in the prior art, firstly, the web is cut by a saw blade type cutter and a saw blade receiving groove, but a sharp cut is not achieved by this method. As shown in FIGS. 13 and 13, a gap of about 0.5 to 1 mm was usually generated at the butt joint of the two webs. Then, the tape application to the joining portion is performed by cutting the two webs, rotating the cutting blade cylinder and the cutting blade receiving cylinder by 90 °, and then attaching the tape simultaneously from both sides to the entire length of the joining portion. This is done by: However, in this method, as shown in FIG.
A concave portion was formed by the gap portion, and a convex portion was formed by an air layer or bubbles contained between the web surface and the tape surface, and the joint was abnormally deformed. In addition, there is a fear that the gap is further increased during the tape attaching and rotating operations. In addition, the abnormal deformation of the joint portion is caused by causing irregularities in which the apparent web thickness is irregularly increased and partially passing through a narrow gap in a nozzle or the like in a drying portion or a pressurizing portion in a printing or coating portion. In order to avoid these problems, a relief mechanism for passing through the joint is provided to temporarily increase the gap or temporarily suspend pressurization.
It requires an additional device that can be moved away. On the other hand, when these devices are not provided, various troubles occur.

Next, in the above-mentioned prior art, the butt splice, that is, the cutting of the web and the application of the tape to the joint portion are performed automatically. However, the preparation work involved requires manual labor. That is, the adhesive tape (single-sided adhesive tape) must be manually pulled out of the cutting blade cylinder and the cutting blade receiving cylinder from the cutting table body to the outside of the machine, and then adhered with the adhesive surface facing outward,
The new web had to be manually clipped at one end to the mounting portion of the cutting blade cylinder, and the cut unnecessary portions had to be manually removed each time. However, this operation is extremely complicated and dangerous.

As described above, according to the above-mentioned prior art, a gap is generated in a joint portion and abnormal deformation is apt to occur, and complicated and dangerous preparation work is required.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a traveling cutter type butt splice method and apparatus capable of minimizing the gap and abnormal deformation of a joint as much as possible and performing a preparatory operation easily and safely. It is in.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, a traveling cutter type bat splice method according to the present invention provides a method for temporarily stopping a running old web by an accumulator means and overlapping the new web with a new web. After the nip, the overlapping part is moved in the width direction of the old and new webs.
The new scissors are cut by moving scissor-type cutter means.
After the front end of the web is butt-joined to the web
Separated from the end part by the separating plate means , the new after cutting,
The scissor-type cutter means
And the new and old webs are moved in the width direction
The adhesive tape is attached by a moving self-contained tape attaching means.

In this case, the tape on the joining portion where the tape is attached can be further pushed through the additional pushing roller means.

Further, the traveling cutter type bat splice device according to the present invention comprises an accumulator means for temporarily replenishing the old web, a new web passing bar means for inserting the new web into the splice position, and Old web stop means consisting of a brake roller and a movable press roller that temporarily stops, and nip means consisting of a fixed rubber nip and a movable press rubber nip that nip the inserted new web and the stopped old web to a splice position. A splice preparation mechanism to be formed and a scissor-type cutter means, a separating plate means and a self-contained tape sticking means, travel in a web width direction at the splice position by a traveling cylinder, and sequentially from one end to the other end of the web. the continuously Xin, cut by the former two webs scissors cutter means, The front end portion of the cross-sectional been new web same cormorant
From the rear end portion where the eb is butt-joined,
Separated by stage, the New after cutting, butting engagement of the former two webs
Scissor-type cutter means and separation plate means
The self-contained TE that moves in the width direction of both the new and old webs
And a butt splice mechanism formed so as to stick the adhesive tape by the tape sticking means .

In this case, the self-contained tape applying means includes a tape bobbin means for storing the adhesive tape, a tape applying rubber roller means for feeding out the adhesive tape from the bobbin means, and the rubber roller means moving the rubber roller means to the operating position and the escape position. And a tape cutter means for cutting the adhesive tape, and the adhesive tape is pressed against the nip means at the operating position to butt the adhesive tape between the new and old webs. The adhesive tape may be configured to be cut at the joint portion and cut by bringing the adhesive tape into contact with the tape cutter means at the relief position.

It is preferable that the butt splice mechanism further includes additional pressing roller means for further pressing the joining portion to which the tape is attached.

[0016]

According to the present invention, both the new and old webs are pressed and fixed via nip means at the portions to be cut and joined, and sequentially from one end to the other end in the web width direction. Continuously, by cutting with a scissor-type cutter means and a self-contained tape applying means and applying tape, the cut end can be sharply cut to form a joint gap almost zero, and the gap between the web surface and the tape surface can be reduced. No air bubbles are included between them. Therefore, the gap and abnormal deformation of the joint are suppressed as much as possible.

The adhesive tape is self-supplied, and unnecessary portions of the new web are automatically separated and removed by the separating plate means, so that a so-called butt splice preparation operation can be performed simply and safely.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a bat splice method according to the present invention.
For convenience of description, the same components as those of the conventional structure shown in FIGS. 9 to 13 are denoted by the same reference numerals, and detailed description will be omitted.

First, the traveling cutter type butt splice device of the present invention basically has the above-mentioned conventional technology (FIG. 9).
Similarly, the paper feed unit 12, the butt splice unit 18 and the accumulator unit 20 are provided, and the paper feed unit 12 and the accumulator unit 20 are separated from the web rolls 10a and 10b and the accumulator means 20 in the same manner as in the related art. It is configured.

However, as shown in FIGS. 1 and 2, the butt splice section 18 of the present invention temporarily stops the running old web 36 and
And a butt splicing mechanism 80 that cuts the overlapped portion and affixes the butt joint portion with a tape.

The splice preparation mechanism 60 includes a new web 42
New web passing bar means 62 for inserting the web into the splice position
And a brake roller 38 with an electromagnetic brake 38a for temporarily stopping the running web 36 and a rotating means 40a.
Old web stopping means 64 comprising movable holding rollers 40
And a nip means 70 comprising a fixed rubber nip 66 for nipping the inserted new web 42 and the stopped old web 36 at a splice position, and a movable pressing rubber nip 68 with a nip cylinder 68a.
The new web passing bar means 62 includes a sprocket 72
a new web is inserted into the splice position via a guide roller 74a by operating a forward rotation push button (not shown), and a limit switch 74a is provided. Stop by The movable holding rubber nip 68 is provided with a gap for passing a traveling cutter described later.

The butt splice mechanism 80 includes a scissor type cutter means 84 comprising an upper blade 84a and a lower blade 84b supported on a support plate 82, and a new web 4 which has been cut.
The old web 3 whose part to be butt-joined 2 has been cut
Horizontal level almost the same as the butt-joined part of No. 6
Guide plate 86 to keep the new web 42
Of the front end (unnecessary part) 42a of the web 42
Separation plate means 88 for separating from the rear end portion to be joined
(See FIG. 3) , self-contained tape sticking means 100, and additional pushing roller means 90, and are configured to travel in the web width direction at the splice position via a traveling cylinder 92. In addition, cutter
The means 84 is provided between the guide plate 86 and the separation plate means 88.
Are arranged perpendicular to.

Here, the self-contained tape attaching means 100 comprises:
Tape bobbin means 104 for storing adhesive tape 102
And a rubber roller means 110 comprising rubber rollers 106 and 108 for applying and sticking the adhesive tape 102 from the bobbin means 104, and the rubber roller means 1
It comprises a moving means (cylinder) 112 for moving the apparatus 10 between the operating position and the relief position, and a tape cutter means 114 for cutting the adhesive tape 102. In addition, the bobbin means 104 includes
1 that presses and moves the rubber 1 toward the rubber roller 103.
04a, and a dog 104b and a proximity switch 104c for detecting the remaining amount of the adhesive tape 102 are provided.
The rubber roller 106 is provided with a one-way clutch for preventing the adhesive tape 102 from returning, and the rubber roller 108 is coated with silicone rubber for preventing the adhesive tape 102 from sticking. In addition, the tape cutter 114
By lowering the rubber roller means 110 to the escape position, the rubber roller 106 stops at the brake plate 114a,
It is configured to cut the adhesive tape 102 (see FIG. 4). Further, the additional pressing roller means 90 includes a pressing roller 90a, a spring 90b, and an adjusting bolt 90c. The traveling cylinder 92 is preferably formed of a rodless air cylinder with a brake, but may be formed of a hydraulic cylinder or a servomotor, which is provided with a limit switch 92a corresponding to the web width. In addition, the splice preparation mechanism 60 and the butt splice mechanism 80 can be provided with turning means (not shown) for turning them by 90 °, so that maintenance work for each mechanism can be performed more easily. can do.

Next, steps based on such a configuration will be described with reference to FIG.
Before the 6 is consumed, a new web insertion 120 is performed beforehand via the new web passing bar means 62. Next, at a predetermined timing (such as detection of the web winding diameter or presetting of the web length), the splice command 122 is issued automatically or manually by visual observation, so that the old web is stopped via the old web stop means 64. A stop 124 is performed. Then, the two webs are fixed 126 via the nip means 70 (the nip cylinder 68a is lowered).
Is performed. FIG. 6 shows the state at this point. Next, the bat splice mechanism 80 travels by the start 128 of the traveling cylinder, and the butt splice 130 moves the two webs 3 at the splice position.
6 and 42 are sequentially cut from one end to the other end thereof, are cut through the scissor-type cutter means 84, and the separated new web unnecessary portion 42a is separated by the separation plate means 8
8 (see FIG. 7) and the butt joint 52 of the new and old webs 36, 42 after cutting.
The tape 102 is applied from one side via the rubber roller 106 (the cylinder 112 is raised) of the self-contained tape applying means 100 (see FIG. 8).
The 02 surface is further pushed through the additional pushing roller means 90. Then, when the butt splice 130 is completed, the tape sticking cylinder 112 is lowered to cut the tape 13.
2 (see FIG. 4; at this time, the old web remaining portion 3
6a is rewound on the web roll by the brake motor of the paper feeding unit), and the limit switch 92a is operated to stop the traveling cylinder 134. That is, the butt splice operation is automatically achieved. Finally, the nip cylinder 68a is raised to release 136 of both webs, the movable press roller 40 is separated to release 138 of the old web, and the new web 4 joined to the old web 36 is released.
2 is unwound. That is, the splice is automatically completed.

As described above, according to the present invention, the portions of the new and old webs to be cut and joined are pressed and fixed via the nip means, and then, from one end to the other end in the web width direction. By cutting and applying tape by scissor cutter means and self-contained tape applying means successively toward the part, the cut end is sharply cut, the joint gap is almost zero, and the web surface and the tape are cut. No air bubbles are included between the surface. Therefore, the gap and abnormal deformation of the joint are suppressed as much as possible. In addition, since the adhesive tape is self-supplied, and unnecessary portions of the new web are automatically separated and removed by the separating plate means, so-called butt splice preparation work is easily and safely performed.

Although the present invention has been described with reference to a preferred embodiment, the present invention is not limited to the above-described embodiment.
Many design changes are possible without departing from the spirit thereof.

[0027]

As described above, in the traveling cutter type bat splice method according to the present invention, an apparatus for carrying out the method is inserted into the accumulator means for temporarily replenishing the old web and the new web at the splice position. New web passing bar means, old web stopping means consisting of a brake roller and a movable pressing roller for temporarily stopping the running old web, and nip the inserted new web and the stopped old web at a splice position. A splice preparation mechanism formed by a fixed rubber nip and a nip means composed of a movable pressing rubber nip, and a scissor-type cutter means, a separating plate means and a self-contained tape sticking means, which travel in the web width direction at the splice position by a traveling cylinder. , From the one end of the web to the other end in succession. And switching <br/> cross by scissors cutter means blanking mintues forward end portion of the cut fresh web of the same web
Separation from the rear end portion to be joined and joined by the separation plate means
Away City, said Xin after cutting, before the butt of the old both web
The scissors-type cutter means and the separating plate means are newly integrated.
The self-contained tape sticker that moves in the width direction of both old webs
And a bat splice mechanism formed so as to apply an adhesive tape by a step.The running old web is temporarily stopped by accumulator means, and after the new web is overlapped with the new web, the overlapping section is replaced with the new old one.
The web is cut by scissor cutters moving in the width direction of both webs, and the front ends of the cut new web are projected by the web.
Separated from the part to be joined by separation plate means ,
At the abutting part of the new and old webs after cutting,
New and old webs integrated with the cutter and separator
Adhesive tape by a self-contained taping means for movement of the width direction
The new and old webs are sharply cut at the portions to be cut and joined, the gap between the joined portions is almost zero, and the web surface and the tape surface can be attached. Air bubbles are not included in between.

Therefore, the gap and abnormal deformation of the joint are suppressed as much as possible. Also, the adhesive tape is self-sufficient,
Unnecessary portions of the new web are automatically separated and removed by the separating plate means, so that a so-called butt splice preparation operation is easily and safely performed.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing one embodiment of a traveling cutter type bat splice device according to the present invention.

FIG. 2 is a view taken along line II-II of FIG.

3 is a view taken along line III-III of FIG. 2, showing a side surface of a main part of a separation plate of the traveling cutter type bat splice device.

FIG. 4 is an explanatory view showing a tape cutting state in the self-contained tape attaching means of the traveling cutter type bat splice apparatus shown in FIG. 1;

FIG. 5 is a block diagram showing steps of a traveling cutter type butt splice method according to the present invention.

FIG. 6 is a view taken along the line IV-IV of FIG. 2, showing a joint portion between the two webs in a splice preparation completed state .

FIG. 7 is a view taken along line VV in FIG. 2 showing a joint portion between the two webs at the time of butt splicing (cutting, separation and removal).

8 is a cross-sectional view of a main part showing a joint portion between both webs at the time of butt splicing (taping) in FIG.

FIG. 9 is a schematic side view showing the overall configuration of a conventional bat splice device.

10 is a main part side view showing a butt splice part in the butt splice device shown in FIG. 9;

11 is a main part side view showing a state after cutting the web of the butt splice portion shown in FIG. 10;

FIG. 12 is a side view of a main part showing tape attachment to a butt joint portion of both cut webs in FIG. 11;

13 is a main part side view showing a butt-joined portion to which a tape is attached, corresponding to FIG. 12;

[Explanation of symbols]

36 old web 36a old web remainder 38 brake roller 38a electromagnetic brake 40 movable holding roller 40a rotating means 42 new web 42a new web unnecessary part 60 splice preparation mechanism 62 new web passing bar means 64 web stopping means 66 fixed nip rubber 68 movable holding nip rubber 68a Nip cylinder 70 Nip means 72 Carrier chain 72a Sprocket 74 Paper passing bar 80 Butt splice mechanism 82 Support plate 84 Scissor type traveling cutter (means) 84a Upper blade 84b Lower blade 86 Guide plate 88 Separating plate (means) 90 Additional push roller Means 90a Pressing Roller 90b Spring 90c Adjusting Bolt 92 Running Cylinder 100 Self-Supplying Tape Pasting Means 102 Adhesive Tape 103 Rubber Roller 104 Adhesive Tape Bobbin 104a Pulling 104b dog 104c proximity switches 106, 108 rubber roller 110 taping rubber roller means 112 tape joining cylinder 114 tape cutter (means) 114a brake plate 120 to 138 steps

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-55-74941 (JP, A) JP-A-57-142815 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65H 19/00-19/30

Claims (5)

(57) [Claims] After the running old web is temporarily stopped by accumulator means and overlapped with the new web and nipped, the overlapping portion is moved between the old and new webs.
It is cut by scissor-type cutter means moving in the width direction, and the front end of the cut new web is abutted against the same web.
Separated from the rear end portion to be joined by the separating plate means , and the scissor type cutter is attached to the butted portion of the new and old webs after cutting.
The new and old webs are integrated with the
Adhesive tape by a self-contained taping means for moving in the width direction
A running cutter type butt splice method, wherein a butt is attached . 2. The running cutter-type bat splice method according to claim 1, wherein the tape on the joining portion to which the tape is adhered is further pushed through an additional pushing roller means. 3. An accumulator means for temporarily replenishing the old web, a new web passing bar means for inserting the new web into a splice position, and a brake roller and a movable pressing roller for temporarily stopping the running old web. An old web stopping means, a splice preparation mechanism formed by a nip means consisting of a fixed rubber nip and a movable pressing rubber nip for nipping the inserted new web and the stopped old web at a splice position, and a scissor cutter means, It consists of a separating plate means and a self-contained tape affixing means, travels in the web width direction at the splice position by a traveling cylinder, and continuously holds the new and old webs from one end to the other end of the web in a continuous manner. It was cut by the cutter means, prior to the cut new web
From the rear end of the web where the ends are butt-joined
Separated by the separating plate means, and the scissor-type cutter means and
It moves in the width direction of the old and new webs together with the separating plate means
And a butt splice mechanism formed by the self-contained tape sticking means so as to stick an adhesive tape . 4. A self-contained tape applying means comprising: a tape bobbin means for storing an adhesive tape; a tape applying rubber roller means for feeding out the adhesive tape from the bobbin means; And a tape cutter means for cutting the adhesive tape, and pressing the tape-applying rubber roller means against the nip means at the operating position to butt-join the new and old webs with the adhesive tape. The running cutter type bat splicing device according to claim 3, wherein the adhesive tape is cut off by adhering to the tape cutter means at the relief position while adhering to the tape cutter means. 5. The running cutter type bat splice device according to claim 3, wherein the butt splice mechanism further includes an additional pushing roller means for pushing the joining portion to which the tape is attached.