JPH0811651B2 - Pretreatment method for automatic paper splicing of web - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an automatic paper splicing pretreatment for applying a splicing pretreatment to a starting end portion of a web when performing automatic paper splicing of the web. Regarding the method.

(Prior Art) Generally, in a rotary press, as shown in FIG. 8, the end portion of the web 21 that is fed at a constant speed is moved to the start end of the web 21 that is rotated at an equal circumferential speed. By performing adhesive bonding using the pressing device 22, continuous feeding to the rotary press 23 is performed. In the figure, reference numeral 24 is a three-pronged paper for supporting the paper roll, and 25 is a rotation drive device for the paper roll 21.

In order to automatically splice the paper roll 21, the starting end of the paper roll 21 must be pre-processed for splicing paper.

Conventionally, as a paper splicing pretreatment for a paper roll, a manual method and Japanese Patent Application Laid-Open No. 61-12561 and Japanese Patent Application No. 60-92074 (Japanese Patent Application Laid-Open No.
No. 61-248849), a method of using the automatic paper splicing pretreatment device is known.

That is, the manual pretreatment method is as shown in FIG.
After peeling off the outer surface layer of the paper roll 21 with a bamboo stick or the like, the starting end portion is cut into a substantially V shape, and the base end portion of the tab 26 having an adhesive layer at the tip of the V shape is attached and the tab 26 The tip of the tape is attached to the outer surface of the paper roll 21, and a plurality of double-sided adhesive tapes 27 are attached to the outer surface of the V-shaped starting end.

Further, the method of using the automatic paper splicing pretreatment device disclosed in Japanese Patent Laid-Open No. 61-12561 is, as shown in FIGS. 10 to 12, a surface layer of a paper roll 21 rotatably supported by a supporting device. While removing the part by the cooperative operation of the suction device and the cutter device, the starting end of the paper roll 21 is fed to the upper surface of the table 28, and the double-sided adhesive tape 27 is attached to the starting end by the adhesive layer forming device and the cutting device. After forming the V-shaped cut 29, the starting end of the web 21 is separated along the cut 29, and a tab 26 of a predetermined length is supplied to the V-shaped starting end by a tape feeding device for tabs and one end thereof is adhered. The double-sided adhesive tape 27 of the layer forming device is applied to the starting end portion, and then the winding paper starting end is rewound and the other end of the tab 26 is adhered to the outer surface of the winding paper 21 with the double-sided adhesive tape 27 of the adhesive layer forming device. I am trying.

Further, in the method of using the automatic paper splicing pretreatment device disclosed in Japanese Patent Application No. 60-92074 (Japanese Patent Application Laid-Open No. 61-248849), a double-sided adhesive tape is applied to the beginning end of the paper roll by the same action as the former. Along with sticking, after forming a V-shaped cut, the starting end of the paper roll is separated along the cut, and one end of the tab having an adhesive layer is stuck on the back surface of the V-shaped starting end by a tab sticking device. After that, the starting end of the paper roll is rewound and the other end of the tab is attached to the outer surface of the paper roll.

Thus, the pre-processed web for winding is rotated at a speed equal to the feeding speed of the web 21 in use, and the end of the web 21 in use is pressed against the start of the new web 21. By doing so, both papers are attached and connected by the double-sided adhesive tape 27, the tabs 26 are cut, and new webs 21 are continuously supplied to the rotary press.

However, when the pretreatment for splicing the paper is applied to the starting end portion of the paper roll 21 by each of the above-mentioned methods, the tab 26 is required in each case, so it is troublesome to prepare the tab 26 and attach the tab 26 to the paper roll 21. Therefore, there is a problem that work efficiency is significantly reduced.

In addition, tab 26
Tape feeding device and tabs for feeding paper to the web 21
A separate device with a complicated structure such as a tab sticker for sticking 26 to the paper roll 21 is required, which increases the manufacturing cost and processing cost, and the structure of the automatic paper joint pretreatment device itself is extremely high. There are problems such as complication.

(Problems to be Solved by the Invention) The present invention was created in order to solve the above problems, and an object thereof is to eliminate tabs during pretreatment for paper splicing and to improve work efficiency. An object of the present invention is to provide an automatic paper splicing pretreatment method for paper rolls, which can reduce costs.

(Means for Solving Problems) The present invention provides a web by an automatic paper splicing pretreatment device including a web support device 1, an arm device 2, a main processor 3, a suction device 4, a table 5 and a web pressing device 6. In the automatic paper splicing pretreatment, after removing the surface layer of the rotatably supported roll paper 13, the starting end of the roll paper 13 is fed out onto the table 5, and then double-sided adhesive is applied to the upper surface of the start end portion of the roll paper 13. The tape is attached in a substantially V shape to form a paper splicing adhesive layer 18 ', and a substantially V-shaped cut 19 is formed along the outer side of the paper splicing adhesive layer 18' at the starting end of the web. Next, after pulling the front end side of the starting end of the web to separate it from the V-shaped notch 19, a short closed shape is formed inside the V-shaped tip of the web in a direction perpendicular to the feeding direction of the web. Forming the notch 20 and the upper surface outside the notch 20 One side of the double-sided adhesive tape 18 is adhered to and is cut off in a state where the tip side thereof is projected forward by a predetermined length, and both sides of the closed cut 20 of the V-shaped tip portion. 18 "double-sided adhesive tape for reinforcement that is short in the unwinding direction of the paper roll
And then rewind the start end of the paper roll 13 and
Double-sided adhesive tape 18 that protrudes forward from the tip of the letter shape
It is the basic constitution of the invention that the tip side of the paper is attached to the outer surface of the body of the paper roll 13.

(Operation) In the paper splicing pretreatment of the paper roll, the surface layer of the paper roll is removed, the starting end of the paper roll is extended to the upper surface of the table, and a paper splicing adhesive layer and a substantially V-shaped cut are made at predetermined positions of the starting end. After forming, the starting end of the paper roll is separated along the cut line, and one end of an adhesive tape of a predetermined length is attached to the upper surface of the tip of the starting end of the paper roll, and the adhesive tape is attached to the starting end. A closed cut for cutting off the pointed portion is formed, then the starting end of the paper roll is rewound and the other end of the adhesive tape is attached to the outer surface of the paper roll.

Then, when the end portion of the paper roll in use is pressed against the start end portion of a new paper roll rotated at a constant circumferential speed, both papers are attached and connected by a paper splicing adhesive layer and an adhesive tape is attached. The tip of the leading edge is cut off along the closed cut, and the leading edge of the new web is continuously fed to the rotary press.

(Example) Hereinafter, the Example of this invention is described in detail based on drawing.

1 and 2 are a front view and a side view of an automatic paper splicing pretreatment apparatus used in the pretreatment method of the present invention, wherein the pretreatment apparatus is provided in the vicinity of a roll-in paper carry-in path. It is installed and comprises a paper roll support device 1, an arm device 2, a main processor 3, a suction device 4, a table 5, a paper web pressing device 6, and the like.

The paper roll support device 1 includes a base frame 8 attached to a ceiling 7 of a building, a hanging frame 9 movably attached to the base frame 8, and a movable frame 10 housed in the hanging frame 9 so as to be vertically movable. It is composed of a rotation support shaft 11 that can move forward and backward, a motor 12 that rotates the rotation support shaft 11, and the like. The structure of the paper roll support device 1 is not limited to that of the above-described embodiment, and may be of any type as long as it can rotatably support the paper roll 13. The position is not limited to that in the above embodiment.

The arm device 2 includes a guide rail 14 attached to the base frame 8 and a lateral guide rail 16 attached to the guide rail 14 via a support shaft 15. The lateral guide rail 16 moves in the lateral width direction. In addition to being able to do so, it is attached so as to be able to turn about the support shaft 15 as a fulcrum.

The main processor 3 is arranged on a lateral guide rail 16 so as to be movable in the left-right direction and swingable at the front end in the vertical direction. The processor 3 is attached by the structure disclosed in Japanese Patent Laid-Open No. 61-12561.

Further, the main processor 3 cuts the surface layer portion of the paper roll 13 in the lateral direction, cuts the starting end portion of the paper roll 13 into a predetermined shape, and forms a closed cut at the starting end portion in the case body. A cutter device (not shown) and an adhesive layer forming device (not shown) for forming a paper joining adhesive layer 18 'by attaching a double-sided adhesive tape 18 having protective paper overlaid on the top end of the paper roll 13 ) And a paper feeding device (not shown) for moving the starting end of the paper roll 13 are housed respectively. In this embodiment, the cutter device, the adhesive layer forming device and the paper feeding device are disclosed in The one disclosed in 61-12561 is used. As the cutter device, the one disclosed in Japanese Patent Application No. 60-92074 may be used. Also, the adhesive layer forming device is
Japanese Patent Application No. 60-92074 (Japanese Patent Application Laid-Open No. 61-248849) and Japanese Patent Application No. 6
The one disclosed in 0-86670 (Shokaisho 61-203646) may be used.

The suction device 4 is disposed on a horizontal guide rail 16 so as to be movable in the left-right direction and vertically movable in the vertical direction. The suction device 4 is provided with a suction plate at its tip and is connected to a vacuum pump via a hose. This suction device 4 is for adsorbing 3 to 4 surface layers of the paper roll 13 and lifting it. Although the suction device 4 is arranged on the guide rail 16 in the above embodiment, it may be arranged in the main processor 3 in other embodiments.

As shown in FIGS. 1 and 2, the table 5 has a lateral width slightly longer than the lateral width of the web 13 and is horizontally arranged at a height position substantially the same as the top of the web 13. , Is fixed to the base frame 8 by an appropriate method. In this embodiment, the table 5 is as shown in FIG.
The table plate 5 ', 5'is divided into two parts, and each table plate 5', 5'is slidable in the direction of the arrow by a predetermined distance. In addition, a notch 17 for preventing the adhesive layer of the adhesive tape 18 from adhering to the upper surface of the table 5 when the adhesive tape 18 is attached to the tip of the starting end portion of the paper roll 13 in a protruding state in the substantially central portion of the table 5. Are formed.
Further, although not shown, the table 5 is provided with a vacuum suction device including a small hole formed in the table 5 and a vacuum pump or the like arranged at an appropriate position. The vacuum suction device is supported and mounted on the upper surface of the table 5. The starting end of the placed paper roll 13 is suctioned and fixed to the upper surface of the table 5 by vacuum suction. The table 5 is not limited to the one in the above-mentioned embodiment, and the adhesive layer of the adhesive tape 18 stuck to the tip of the starting end portion of the paper roll 13 in a protruding state does not adhere to the upper surface of the table 5. If so, its structure and the like are arbitrary.

As shown in FIG. 1, the roll paper pressing device 6 is formed by a roller supported so as to be movable up and down. The roll paper pressing device 6 presses the roller against the outer surface of the roll paper 13 while winding the roll paper 13 in the winding direction. When the paper is pulled out to the table 5, the paper is wound up without slack, and the adhesive tape 18 is attached to the tip end of the paper roll 13 in a protruding state.
The other end of can be adhered to the outer surface of the web 13.

In the present embodiment, the double-sided adhesive tape 18 of the adhesive layer forming device is used as the adhesive tape 18 that is attached to the tip of the starting end portion of the paper roll 13 in a protruding state.

In the paper joint pretreatment of the automatic paper joint pretreatment device, first, the paper roll 13 is rotatably supported by the paper roll support device 1.

Next, the suction device 4 is operated to suck the outer surface layer of the paper roll 13 upward, and then the cutter device of the main processor 3 is operated to cut the surface layer portion of the paper roll 13 in the lateral width direction.

When the cutting of the surface layer of the web 13 is completed, the web 13 is rotated to remove the surface layer, and the starting end of the web 13 is fed to the upper surface of the table 5.

Subsequently, the main processor 3 is operated to operate the adhesive layer forming device to sequentially attach the double-sided adhesive tape 18 for paper splicing to a predetermined position of the starting end portion of the paper roll 13, as shown in FIG. While forming the adhesive layer 18 ', the cutter device is operated to form a substantially V-shaped cut 19 having a pointed portion. At this time, the starting end of the web 13 is sucked and fixed to the upper surface of the table 5 by the vacuum suction device provided on the table 5. Therefore, the adhesive layer 18 'and the cut line 19 can be formed favorably and reliably at predetermined positions. The double-sided adhesive tape 18 may be attached and the cuts 19 may be formed in any order. Further, the cut 19 is not a complete cut and has a form in which a slight connecting portion is left at both ends, while on the other hand, the adhesive layer has a rotation driving device for rotating the paper roll 13 when the paper is spliced. A gap L required for contacting the belt is formed. Further, although not shown, a protective paper peeling device is provided in the main processing unit 3, whereby the surface protective paper of the double-sided adhesive tape 18 adhered is continuously peeled off to expose the adhesive layer. The surface protection paper may be peeled off after the paper joining pretreatment is completed.

When the formation of the adhesive layer 18 'for paper splicing and the cuts 19 is completed, the paper feeding device of the main processor 3 is operated and the starting end of the web 13 is cut 19's.
Separate along.

When the paper has been cut off, as shown in FIG.
One end of a double-sided adhesive tape 18 of an appropriate length is attached to the upper surface of the tip of the V-shaped starting end portion by the adhesive layer forming device of the main processor 3 so that the other end of the tape 18 is projected outward and the paper roll is wound.
A cutting device of the main processor 3 forms a closed cut 20 for cutting off the tip end portion to which the double-sided adhesive tape 18 is attached at the starting end portion of 13. At this time, a double-sided adhesive tape 18 ″ for reinforcement is attached to a position near the closed cut 20 by the adhesive layer forming device of the main processor 3 so that the tip portion can be cut off satisfactorily and reliably. The double-sided pressure-sensitive adhesive tape 18 may be adhered or the closed cuts 20 may be formed in any order.
Since the other end of 18 is located above the notch 17 formed in the table 5, it does not adhere to the table 5. Further, in this double-sided adhesive tape 18, the upper surface protective paper is not peeled off, and the upper surface adhesive surface remains hidden. In addition, the shape of the closed cut 20 is arbitrary as long as the pointed portion to which the double-sided adhesive tape 18 is attached can be separated from the starting end.

When the adhesion of the adhesive tape 18 and the formation of the closed cut 20 are completed, the table plate 5 is slightly slid in the direction of the arrow in FIG. 3, and the outer surface of the paper roll 13 is pressed by the paper web pressing device 6 while the paper roll 13 is being pressed. The starting end of the web 13 is rewound and the other end of the double-sided adhesive tape 18 at the pointed portion is attached to the outer surface of the web 13 to process the starting end of the web 13 as shown in FIG. Since the gap is formed in the center of the table 5 when the starting end of the web 13 is rewound, the double-sided adhesive tape 18 protruding from the starting end does not adhere to the table 5.

The operation of each device is automatically performed according to a preset signal from the control device.

In this embodiment, the double-sided pressure-sensitive adhesive tape 18 is attached to the upper surface of the V-shaped starting end of the paper roll 13 in a protruding state, and the reinforcing double-sided adhesive tape is attached in the vicinity of the closed cut 20. Since the double-sided adhesive tape 18 of the adhesive layer forming device is used for 18 ″, it can be said that the structure of the automatic paper splicing pretreatment device itself is complicated or other devices are added. Not very convenient.

Thus, the web 13 that has been subjected to the pre-paper splicing treatment is rotated at a speed equal to the feeding speed of the web that is being supplied to the rotary press, and the end of the web in use starts at the start of the new web 13. When they are pressed against each other, both papers are attached and connected by a paper splicing adhesive layer 18 ', and as shown in FIG.
The pointed portion attached with is cut off along the closed cut 20, and the starting end of the new web 13 is continuously fed to the rotary press. Since the reinforcing double-sided adhesive tape 18 ″ is adhered to the position near the closed cut 20, the pointed portion is separated along the closed cut 20 in a good and reliable manner.

In the above embodiment, the double-sided adhesive tape 18 is used as the paper 13
Although the adhesive layer 18 'for paper splicing is formed by sticking the adhesive layer to the starting end of the sheet, in other embodiments, the adhesive layer may be formed by applying an adhesive agent or the like.

Further, in the above-mentioned embodiment, the double-sided adhesive tape 18 having protective paper laminated on the upper surface is attached to the tip of the starting end portion of the paper roll 13, but the tape may be a single-sided tape.

(Effects of the Invention) As described above, the pretreatment method of the present invention is to adhere one end of an adhesive tape of an appropriate length to the top surface of the tip of the V-shaped starting end portion of the paper roll on which the adhesive layer for paper splicing is formed, and A V-shaped start end is formed with a closed cut for separating the pointed portion to which the adhesive tape is attached, and then the starting end of the paper roll is rewound to attach the other end of the adhesive tape to the outer surface of the paper roll. Therefore, the tab can be omitted as compared with the conventional pretreatment method in which the paper splicing pretreatment is performed on the starting end portion of the paper roll manually or by the automatic paper splicing pretreatment device. As a result, it is possible to significantly improve the work efficiency without the need to prepare the tabs and to attach the tabs to the paper roll as in the conventional pretreatment method.

Further, in the pretreatment method of the present invention, the tab can be omitted as compared with the conventional pretreatment method. Therefore, when an automatic paper splicing pretreatment device is used for the pretreatment, a tab sticking device or the like is attached to the device. Since there is no need to install the device, the manufacturing cost and the processing cost can be reduced, and the structure of the device itself can be simplified.

[Brief description of drawings]

FIG. 1 is a front view of an automatic paper splicing pretreatment device used in the pretreatment method of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a perspective view of a table of the automatic paper splicing pretreatment device. FIG. 4 is a perspective view showing a state of forming a pressure-sensitive adhesive layer for paper splicing and a V-shaped cut, FIG. 5 is a perspective view showing a state of adhering an adhesive tape and forming a closed cut, and FIG. 6 is a paper splice. FIG. 7 is a perspective view of the paper roll that has been subjected to pretreatment, FIG. 7 is a perspective view of the paper roll in which the tip end portion of the paper roll is cut off, and FIG. 8 is an explanatory view of a paper feed unit in a rotary press. Is a perspective view of a paper roll that has been manually pretreated, and Fig. 10 shows a conventional pretreatment method using an automatic paper splicing pretreatment device, showing the formation of a paper splicing adhesive layer and the formation of V-shaped cuts. Fig. 11 is a perspective view showing a state in which a tab is attached to the starting end portion of the paper roll, and Fig. 12 is a paper roll similar to the paper splicing pretreatment. It is a perspective view. 5 is a table, 13 is a paper roll, 18 is an adhesive tape, 18 'is an adhesive layer for paper splicing, 19 is a V-shaped cut, and 20 is a closed cut.

 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A 61-12561 (JP, A) JP-A 61-119554 (JP, A) JP-B 50-2282 (JP, B1)

Claims (1)

[Claims] 1. Automatic paper splicing comprising a web support device (1), an arm device (2), a main processor (3), a suction device (4), a table (5) and a web pressing device (6). In the automatic paper splicing pretreatment by the processor, after removing the surface layer of the rotatably supported web (13), the starting end of the web (13) is fed out onto the table (5), A double-sided adhesive tape is attached in a substantially V shape on the upper surface of the starting end of the paper roll (13) to form a paper-bonding adhesive layer (18 '), and along the outside of the paper-bonding adhesive layer (18'). Forming a substantially V-shaped cut (19) at the starting end of the web, then pulling the front end side of the starting end of the paper to separate it from the V-shaped cut (19), and then cutting the V of the paper. A short closed cut (20) is formed inside the tip of the letter in the direction perpendicular to the paper feeding direction. Along with the formation, one end side of the double-sided pressure-sensitive adhesive tape (18) is attached to the upper surface on the outside of the cut line (20), and the tip side thereof is cut forward while projecting a predetermined length, Also, a short double-sided adhesive tape (18 ″) for reinforcement is attached to both sides of the closed cut (20) at the tip of the V-shape in the feeding direction of the paper roll, and finally the start end portion of the paper roll (13). The automatic winding paper is characterized in that the front end side of the double-sided adhesive tape (18) which is rewound and protruded forward from the V-shaped front end is adhered to the outer surface of the body of the paper roll (13). Pre-treatment method for paper splicing.