JPS63147754A - Terminal treatment method for roll paper and its device - Google Patents

Abstract

PURPOSE:To conduct an automatic paper replenishment in a state in which a machine is working by setting a plurality of roll paper rolls at the paper-feed portion of a paper processor and conducting a paper-replenishment-terminal-treatment to a roll of roll paper which is in a paper-replenishment-preparation position out of the plurality. CONSTITUTION:The rotational arm 3 of a paper-feed portion 1 is divided to a roll paper L-furnishing-position A, a paper-replenishment-preparation-position B and a paper-feeding- position C. When a paper-replenishment-preparation command is issued, a drive-roll 7 comes into contact with the roll paper L which is in a preparation position B, and a support-frame 10 is moved toward the roll paper L. And such processes or the like as the predetermined length of the roll paper being drawn out and cut-off, the affixing of a roll back-prevention-tab, the spreading of an adhesive agent and a process in which a tip-part is bended with the tab at the top, are conducted by means of a drawn-out roll, a suction mechanism, a cutter device, an affixing device and an adhesive agent-spreading device or the like provided at the support frame 10. And this roll paper is made to move toward the paper-feed position C, and the old roll paper at the paper-feed position C is push-pressed to and connected with thin new roll paper with a base arm and cut-off. Accordingly, a preprocessing work for paper replenishment can be done automatically in a state in which a machine is working.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a terminal that performs terminal processing for paper splicing in the set state of a web set in a paper feed section of a paper processing machine such as a rotary press. The present invention relates to a processing method and an apparatus therefor.

[Conventional technology and its problems]

Generally, the paper roll set in the paper feed section of a rotary press has a tab attached to the end of the paper roll to prevent the paper from being rewound. If this type of paper roll is attached to the paper feed section of a rotary press as is, it will not be possible to splice the paper automatically, so normally the tip of the paper roll is cut into an inverted triangle with the tab as the apex, and the cut edge is An adhesive layer is provided along the line.

A device that automatically performs the above-mentioned pretreatment work is well known, for example, in Japanese Patent Laid-Open No. 12561/1983.

By the way, this pre-processing device is configured to be installed on the path that conveys the web from the paper storage to the paper feed section of the rotary press, so it requires a relatively large installation space and is expensive. There are many problems, such as it being difficult to introduce in newspaper companies with a small number of rotary presses due to profitability, and the risk of damage to the web during pre-processing work on the path that transports the web to the paper feed section of the rotary press. .

[Purpose of the Invention] Therefore, the present invention solves the above-mentioned problems and enables paper splicing by setting the web taken out from the paper storage into the paper feed section of a paper processing machine such as a rotary press. It is an object of the present invention to provide a terminal processing method and an apparatus therefor that can automatically perform terminal processing while the machine is in operation.

[Structure of the invention]

In order to achieve the above object, the method according to the present invention includes:
The process of feeding out a predetermined length of the paper roll placed in the paper splicing preparation position among the plurality of paper rolls set in the paper feed section of a paper processing machine and cutting it in the width direction. A step of attaching a tab to the center to prevent the web from unwinding, a process of applying adhesive along the leading edge of the web to both sides of the tab, and an inverted triangle shape on both sides of the leading end of the web with the tab as the apex. It consisted of a folding process and a process of applying adhesive to the surface of the leading end of the web along the folding line.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a paper feed section 1 of a rotary press includes a rotating shaft 2, and a web holder 3 is fixed to both ends of the rotating shaft 2. As shown in FIG.

In the case of the embodiment, only one paper roll holder 3 is shown, and the other holder 3 is omitted. This web holder 3 is provided with three arms 4 at an interval of 1200 mm, and a bearing 5 for rotatably supporting the web is attached to the tip of each arm 4. The web supported by the bearing 5 is braked by a brake device (not shown).

The rotating shaft 2 is intermittently rotated by a drive device 6, and in its stopped state, the stopping positions of the tips of each arm 4 are the paper roll loading position A, the paper splicing preparation position B, and the paper feeding position C.
The roll of paper mounted between the arms 4 at the mounting position A is sequentially transferred to the splicing preparation position B and the paper feeding position C by the rotation of the rotating shaft 2.

A drive roll 7 is disposed on the side of the paper roll located at the paper splicing preparation position B, and the drive roll 7 is supported so as to be able to come into contact with and separate from the end surface of the paper roll, and when in contact, the drive roll 7 brings the paper roll into contact with each other. Rotate.

Further, a support frame 10 is arranged on one side of the paper roll located at the paper splicing preparation position. This support frame 10 includes a pair of side plates 11 (one side plate is omitted in the illustrated case), and a drive shaft 12 rotated by a motor M is passed between the side plates 11. The pinion 13 attached to the rack 14
It fits perfectly. The rack 14 extends long toward the web located at the splicing preparation position B. Therefore, when the drive shaft 12 is rotated by the motor M, the support frame 10 moves relative to the web. .

Further, as shown in FIGS. 2 and 3, a feed roll 15 is provided between one side of the side plate 11, and the feed roll 15 moves the support frame 10 toward the web, thereby unwinding the web. in contact with the outer circumferential surface of the

Note that the feed roll 15 may be rotated by contact with the web, or may be forcibly rotated by a motor.

Below the above-mentioned feed roll 15, Nisopro-16
The nip roll 16 is moved up and down by a thin lidder 17, and comes into contact with the feed roll 15 when rising.

Further, a web suction mechanism 20 is provided around the feed roll 15 to pull out the leading end of the web along the lower outer periphery of the feed roll 15. This suction mechanism 20
In this method, a bar 22 is passed between a pair of 71 arms that are rotatable about the roll axis 15' of the feed roll 15, and a plurality of suction caps 23 are attached to the bar 22 in the length direction.

In the case of the embodiment, the bar 22 is hollow inside, and the bar 2
Although the suction force is applied to the suction camp 23 by suctioning the inside of the suction cap 23, a suction hose may be connected to each suction cap 23. This bar 22 is rotated around the feed roll 15 by a rotation device (not shown).

A suction box 3 is installed on the back of the nip roll 16.
0 is placed. This suction box 30 has a length spanning between a pair of side plates 11, and has a large number of suction holes 31 provided in its back. The end of the paper roll drawn out to the back of the suction box 30 is sucked and supported by the suction box 30, and in this supported state is cut in the width direction by the operation of the cutter device 40.

Here, the cutter device 40 includes a pair of side plates 11
A guide rod 41 is passed between them, and the cutter 42 is moved along the guide rod 41, but a cutter plate having the same width dimension as the sushi-jin box 30 is swung toward the succi-jin box 30. You can.

A pasting device 50 is arranged on the back of the suction box 30 for pasting a part of the tab T to the center of the leading edge of the paper roll suction-supported by the suction box 30.

The pasting device 50 has a cylinder 52 rotatably mounted around a shaft 51 passed between side plates 11, and a suction head 54 mounted on the tip of a piston rod 53 of the cylinder 52. Due to the rotation of the cylinder 52 and the axial movement of the piston rod 53, one tab T is taken out from the bottom of the tab support cylinder 55 disposed above the shaft 51 and is suction-supported by the suction box 30. It is attached to the leading edge of the paper roll.

A guide rod 6 is located above the feed roll 15.
0 is passed, and a pair of supports 61 supported movably along the guide rod 0 is connected to a pair of threaded rods 62 and 62 screwed into each support 61 and arranged parallel to the guide rod 60. Rotation moves it left and right.

Each of the supports 61 supports a suction cap 64 that suctions the leading edge of the web, and a coating device 70 that applies adhesive to the surface of the web. It is moved relative to the outer circumferential surface of the web.

On the other hand, the coating device 70 includes a nozzle 7 supported by a support 61.
I try to spray the adhesive from step 1, but the winding vLL
A coating head may be provided to be movable relative to the outer circumferential surface of the paper web, the coating head may be brought into contact with the outer circumferential surface of the paper web, and the adhesive may be applied to the paper web by this contact.

The terminal processing device shown in the embodiment has the above-mentioned structure, and when a paper splicing preparation command is issued in the paper feed section 1, this terminal processing device operates to transfer a new roll of paper to the paper splicing preparation position B. It is designed to undergo pre-treatment for paper splicing.
The preparation command is issued when the roll diameter of the old roll of paper fed from the paper feeder C to the printing section reaches a set roll diameter.

Here, the new roll paper trays located at loading position A and splicing preparation position B are set with the roll paper taken out from the paper storage and the band wound around the outside thereof removed, so as shown in Fig. 7. In addition, its edges are uneven.

Now, when a paper splicing preparation command is issued, the motor M shown in FIG. 1 is activated to move the support frame 10 toward the new paper roll located at the paper splicing preparation position B.

When the feed roll 15 supported by the support frame 10 comes into contact with the outer periphery of the new web as shown in FIG.
stops.

At this time, the pair of supports 61 are located near the center of the threaded rod 62, while the ninpro roll 16 is located near the center of the threaded rod 62.
It is located far away from 5. Further, the new roll of paper is rotated by contact with the drive roll 7, and its leading edge is positioned slightly below the contact position of the feed roll 15.

Simultaneously with the stop of the support frame 10, the bar 22 rotates around the feed roll 15, and the bar 22 rotates below the feed roll 15, so that the suction camp 23 generates a new paper roll as shown in FIG. When the bar 22 comes into contact with the tip of the roll and attracts the tip, the bar 22 rotates toward the back of the feed roll 15.

For this reason, the tip of the new paper roll is
(The bar 22 is shown by the chain line in Figure 2)
When it stops at the back of the feed roll 15 as shown in
Nip roll 16 rises.

When the nip roll 16 stops at a position where the tip of the new web is held between the feed roll 15, the new web is rotated in the direction of the arrow shown in FIG. 4 by the rotation of the drive roll 7, and the new web is The feed roll 15 is also rotated in the direction of the arrow due to the contact with the roller.

Therefore, the new roll of paper is fed out as shown in FIG.
When located below the lower end of 0, the drive roll 7 and the feed roll 15 stop. At the same time, the suction box 30 suctions the new paper roll extending along the back side of the suction box 30,
Further, the cutter device 240 is operated to cut the leading end of the new paper web along the chain line in FIG. Further, the tab pasting device 50 is operated to paste a portion of the tab T to the center of the leading edge of the new roll of paper.

After the tab T is pasted, the suction box 30 releases the adsorption of the leading end of the new web, while the nip roll 16 descends, and then the drive roll 7 rotates to pick up the new web, the leading end of which is attached to the unreeling roll 15. Rotate the new web in the direction of the arrow in Figure 5 until it passes the contact point.

For this reason, the partially attached tab T is attached to the feed roll 1.
When passing through position 5, it is subjected to the rolling action of the roll 15, and is pasted across the leading edge of the new roll of paper and the outer peripheral surface of the first roll of paper, as shown in FIG.

After the tab T is pasted, the threaded rod 62 shown in FIG. 5 rotates to move the pair of supports from the center of the threaded rod 62 to the left and right toward both ends. During the movement, adhesive is sprayed from the nozzle 71 toward the surface of the new web. For this reason,
Adhesive is applied to the surface of the leading end of the new web. 1st
As shown in Figure 0, when the adhesive is applied to both ends of the new web, the threaded rod 62 stops, and at the same time the suction cap 64 moves toward the outer periphery of the new web. When the suction cap 64 comes into contact with and attracts the leading end a of the new web, the suction cap 64 retreats, and when the end of the new web is pulled up, the rotation of the drive roll 7 moves the new web into the fourth The threaded rod 62 is rotated in the direction of the arrow in the figure at the same time.
The pair of supports 61 is moved toward the center of the threaded rod 62 by this rotation.

Therefore, both ends of the new paper web are folded back diagonally toward the center in the width direction, and the folded pieces are subjected to the rolling action of the feed roll 15. Therefore, the leading end of the new roll of paper is bent into an inverted triangle with the tab T at the apex, as shown in FIG. (b) shows a bent piece.

The suction cap 64 is configured to release the suction of the suction portion immediately before the suction portion is subjected to the rolling action by the feed roll 15.

After forming the leading end of the new paper web as shown in FIG.
It is moved towards the end of 2. When the nozzle 71 supported by the support 61 faces the end of the new web, the screw thread 6
2 is then reversely rotated, and at the same time the new web is rotated in the direction of the arrow in FIG.

Further, adhesive is sprayed from the nozzle 71 onto the surface of the new web.

For this purpose, adhesive is applied to the front end surface of the new roll of paper along the folding line, as shown in FIG. (c) shows the adhesive layer.

Note that when the new paper web is spliced to the old paper web, the new paper web is rotated by contact with the predrive belt on the outer peripheral surface of the new paper web, so the nozzle is installed on the part that comes into contact with the belt to prevent the adhesive from being applied. The spraying of adhesive from 71 is temporarily stopped.

The above operations complete the paper splicing preparation work,
After this is completed, the leading end of the new web is spliced to the rear end of the old web.

In addition, when splicing one sheet, as shown in FIG. 6, the rotary shaft 2 is rotated to move the new roll of paper to the splicing preparation position B toward the sheet feeding position C, and the pivotably supported pace is moved to the splicing preparation position B. The paster arm 80 is swung around the shaft 81 to
A brush 82 supported by the paster arm 80 presses the old paper roll against the new paper roll, and after the two papers are connected, a cutter 83 supported by the paster arm 80 cuts the old paper roll.

〔effect〕

As described above, according to the present invention, since the above structure is adopted, the preprocessing work for paper splicing can be automatically performed in the paper feeding section of the paper processing machine while the machine is in operation. I can do it.

In addition, cut the tip of the gitori in the width direction, attach a tab to the center of the tip edge, bend the tip into an inverted triangle with this tab as the apex, and apply adhesive to the bent piece in advance. Since the folded piece is pasted through the paper, there is less paper waste, and since the tip of the new paper roll has a two-layer structure, it is sturdy, so when it is connected to the old paper roll and pulled out, the tab is easily removed. Can be cut reliably.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a terminal processing device according to the present invention, FIG. 2 is an enlarged vertical sectional front view of the same device, FIG. 3 is a perspective view of the same device, and FIGS. 4 and 5 are FIG. 6 is a front view showing the paper splicing state of the same as above, and FIGS. 7 to 12 are perspective views showing stepwise end processing of the web. It is. 1...Paper feed section, 7...Drive roll, 1
0...Support +L15...Feeding roll, 16...Nip roll, 20...
Il&fr1111.22... Bar, 23...
... Suction cup, 30 ... Saxiran box, 40 ... Kanta device, 50 ...
Pasting device, 61... support, 64... adsorption cap, 70... coating device, 71...
·nozzle. Patent applicant Hamada Printing Machinery Co., Ltd. Agent Kama 1) Text 2 Figure 1 A5L Figure 2 Figure 4 Figure 5

Claims (2)

[Claims] (1) The process of unwinding a predetermined length of the web located at the splicing preparation position among the multiple webs set in the paper feed section of the paper processing machine and cutting it in the width direction; winding up the unrolled end of the web. A step of attaching a tab to the center of the leading edge to prevent rollback of the web, a step of applying adhesive to both sides of the tab along the leading edge of the web, and a step of applying adhesive on both sides of the leading edge of the web with the tab as the apex. A method for processing the end of a paper web, which comprises the steps of folding the paper into an inverted triangle, and applying an adhesive to the surface of the leading end of the paper along the folding line. (2) A drive roll that rotates the web in contact with the web that is located at the splicing preparation position among the multiple webs set in the paper feed section of the paper processing machine, and a support that is movable toward the web. A frame is provided, and the support frame includes a feed roll that can come into contact with the outer periphery of the web, a nip roll that can come into contact with and separate from the lower part of the outer periphery of the feed roll, and a bar that can rotate around the feed roll. A web suction mechanism with a plurality of suction caps attached in the length direction, a suction box placed on the back of the nip roll, and a leading end of the web that is pulled out to the back side of the suction box and supported by suction is cut in the width direction. a cutter device, a pasting device for sticking a part of the tab to the center of the leading edge thereof, and a pair of supports disposed above the nip roll and movable in the width direction of the web;
A winding paper end processing device comprising a suction cap and an adhesive coating device provided on the pair of supports from the outside.