JPH02295856A - Method for adhering two-side sticky tape to paper tubing - Google Patents

Abstract

PURPOSE:To exfoliate an exfoliation tape and adhere and cut a two-side adhesive tape automatically and continuously without causing spreading out to the surface of a paper tubing by setting the pressurization of a pressurizing roll to the paper tubing and the pressurization disengaging timing, and repeating them. CONSTITUTION:With start of unwinding, the leading edge of a two-side adhesive tape 3 is introduced to the pressurizing part between a pressurizing roll 10 and a paper tubing P and affixed to the tubing tip side, and at the same time, an exfoliation tape 4 is exfoliated from the outlet side of the pressurization part and wound on a takeup slip drum 5, and only the tape 3 is affixed in the axial direction of the paper tubing P with progress of advancing. When in this manner tape 3 adhesion to the paper tubing P is advanced to the point where a certain specified length is left at the tail of the paper tubing P, the roll 10 is moved to the standby position by a cylinder 14 and the pressurization is disengaged, and simultaneously to the disengagement, transmission of the transferring force for the paper tubing P to adhesive tape 2 is stopped, and rotation of a brake drum for unwinding 1 is stopped. As a result, the transferring force for the paper tubing P in the direction of arrow is applied to the paper 3, and by this tension, severance is made in a place near the exfoliation starting part of tape 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention uses an adhesive tape with a release tape attached to one surface of the double-sided adhesive tape, and applies the double-sided adhesive tape along the axial direction of a paper tube while peeling off the release tape. This invention relates to a method for applying double-sided adhesive tape to paper tubes.

Conventional technology When winding vapor, film, etc. onto a paper tube, double-sided adhesive tape is pasted on the paper arm generatrix in advance so that winding can begin. As a means of pasting, an adhesive tape pasting device moves along the axial direction of the paper tube while sticking the double-sided adhesive tape holding the release tape onto the paper tube held in a fixed position, and then the release tape is removed. Methods of peeling are known.

Problems to be Solved by the Invention As typified by the above example, conventionally double-sided adhesive tape with release tape was applied to paper tubes by moving the adhesive tape applicator parallel to the axis of the paper tube. When cutting together with the release tape after the end of the paper tube, the cutting position may vary, and the positions of the starting and ending ends of the adhesive tape relative to the paper tube tend to be unstable, and the starting end or ending end of the double-sided adhesive tape tends to be at the tip of the paper tube. It has the disadvantage that it protrudes from the front or rear end surface and becomes a hindrance when winding paper, film, etc., and it also requires a process of peeling off the release tape after applying the double-sided adhesive tape, which is a time-consuming process. Furthermore, when the adhesive tape is cut together with the release tape into paper tubes and wood, and the next application is repeated, the application process becomes extremely inefficient.

The present invention provides a method for applying a double-sided adhesive tape to a paper tube, which prevents the double-sided adhesive tape from protruding, allows continuous and efficient tape application, and allows proper application. .

Means for Solving the Problems Therefore, in order to solve the above-mentioned conventional problems, the present invention moves the paper tube while applying pressure to the adhesive tape with a pressure roll that is movable toward and away from the paper tube. As a result, the adhesive tape is forcibly unwound from the unwinding brake tram while pasting progresses, and at the same time, the release tape of the adhesive tape is released from the exit side of the pressure area. [ ] A double-sided adhesive tape is applied to a paper tube while winding it up on a winding slip drum in rows.

Function In the present invention, when the pressure roll is separated from the paper tube and the pressure is released, i! When the tape take-up slip drum slips and stops rotating, and the feeding of the adhesive tape is stopped, and when the pressure roll is pressing the adhesive tape against the paper tube being transferred, the paper tube transfer force is applied. The slip drum rotates and winds up the release tape. As the winding progresses, the release tape is peeled off from the pressure area by the pressure roll, and the double-sided adhesive tape is applied from the front end of the paper tube to the rear end of the paper tube at the pressure area.

In addition, by releasing the pressure on the paper tube from the pressure roll at the rear end of the paper tube, the slip drum stops winding up the release tape, and the brake drum stops unwinding the adhesive tape to release the paper tube. A transport force is applied to the double-sided adhesive tape. As a result, the brake drum is exerting a braking action, and a tensile force is applied to the double-sided adhesive tape, causing it to be instantly cut off from the peeling initiation site, which is not lined with release tape. Alternatively, the double-sided adhesive tape can be automatically cut by pressing the adhesive tape against the edge of the paper tube at the applied end.

By repeating the operations of pressurizing and releasing the pressure on the paper tube being transferred, the pressure roll automatically peels off the release tape, applies the double-sided adhesive tape, and cuts the tape in succession. .

Example Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows an apparatus for applying double-sided adhesive tape to a paper tube according to the present invention, and FIG. 2 explains its operation step by step.

1 and 2, reference numeral 1 denotes an adhesive tape unwinding brake drum (hereinafter referred to as unwinding brake drum) which is rotatably supported on a frame F, and this unwinding brake drum 1 has adhesive tape on both sides. An adhesive tape 2 with a release tape 4 attached is wound around one surface of the tape 3.

5 is rotatably supported on frame F! A slip drum for taking up a release tape (hereinafter referred to as a take-up slip drum) is attached to the take-up slip drum 5 from a double-sided adhesive tape 3 attached to a paper tube P using a pressure roll 1o, which will be described later.
Have you been separated? The female tape 4 is wound up. A first guide roll 6 is rotatably supported on the frame F, and this first guide roll 6 sets the unwinding position of the adhesive tape 2 unwound from the unwinding brake drum 1.

7.9 is a second rotatably supported on the frame F on the unwinding side. In the third guide roll, a first tension roll 8, which will be described later, is arranged at a substantially intermediate position between the second and third guide rolls 7.9. The adhesive tape 2 unwound via the first guide roll 6 is attached to the second guide roll 7,
It is applied to the first tension roll 8 and the third guide roll 9 and introduced into the pressure roll 10 . 17.19 is a fourth rotatably supported on the frame F on the release tape winding side. A second tension roll 18, which will be described later, is arranged at a substantially intermediate position between the fourth and fifth guide rolls 17 and 19 in the fifth guide roll. The release tape 4 peeled off by the pressure roll 10 is transferred to the fourth guide roll 17.
, the second tension roll 1B, and the fifth guide roll 19, and further passed through the sixth guide roll 20 and wound onto the winding rib drum 5.

Between the third guide roll 9 and the fourth guide roll 17, the pressure roll 10 is used to affix the adhesive tape 2 in the axial direction to the surface of the paper tube P that is being transferred in the axial direction (in the direction of the white arrow). The pressure roll 10 is supported movably in the directions toward and away from the paper tube P, and is provided so as to be able to apply pressure to and release pressure from the paper tube P. As a support side of the pressure roll 10, a rotating plate 12 that rotates about a support shaft 11 is supported on the frame F, and the pressure roll 10 is rotatably supported on the rotating plate 12. The tip of a piston shaft 15 of the cylinder 14, whose rear end is pivotally supported to the frame F via a support shaft 16, is rotatably supported to the rotary plate 12 via a support shaft 13.

When the rotation plate 12 rotates counterclockwise (see FIG. 1) about the support shaft 11 due to the extension movement of the piston shaft 15 of the cylinder 14, the pressure roll 10 is moved against the paper tube P. The adhesive tape 2 is moved from the separation position, that is, from the standby position to the pressure position, and the pressure roll 10 presses the adhesive tape 2 onto the paper tube P. Through this pressurization, the transporting force of the paper tube P is applied to the adhesive tape 2, and the adhesive tape 2 is transferred to the above-mentioned unwinding brake drum 1.
While unwinding the adhesive tape 2 from the exit side of the pressure area.
The release tape 4 is peeled off and the winding slip drum 5 is removed.
As the winding progresses, the double-sided adhesive tape 3 is applied to the paper tube P in the axial direction at the pressurized area.

When the double-sided adhesive tape 3 reaches a predetermined position on the rear end side of the paper tube P, the operation of the cylinder 14 causes the piston shaft 1 to
5 is moved back, the rotating plate 12 is rotated clockwise about the support shaft 11, and the rotation of the rotating plate 12 moves the pressure roll 10 in a direction away from the paper tube P. At the same time as the pressure is released, the rotation of the winding slip drum 5 is stopped, and the rotation of the unwinding brake drum 1 is stopped, the transfer force of the paper tube P is applied to the double-sided adhesive tape 3,
As a result, a tensile force is generated in the double-sided adhesive tape 3 by the braking action of the unwinding brake drum 1, and the tape is cut from the vicinity of the peeled part of the release tape. The pressure roll 10 is moved to a standby position to prepare for the next paper tube to be transferred.

The second tension roll 18 is attached to a support member 24 on one piston shaft 25 of a cylinder 22 fixed to the frame F.
The first tension roll 8 is rotatably supported by the other piston shaft 23 of the cylinder 22 via a support member 21 .

1 above in FIG. Second tension roll 8,1
The solid line position 8 shows the tension state when the piston shaft 25 is extended and the piston shaft 23 moves linearly to apply pressure to the adhesive tape 2 with the pressure roll 10 while attaching it to the paper tube P.
As described above, when the pressure roll 10 moves B from the pressure position to the standby position and cuts the double-sided adhesive tape 3, the piston shaft 23 of the cylinder 22 is extended and the first tension roll 8 is moved to the solid line position. At the same time, the other piston shaft 25 is moved linearly, and the second tension roll 18 is moved from the solid line position to the broken line position, loosening the winding side of the release tape 4 and simultaneously removing the adhesive. The unwinding side of the tape 2 is stretched out, and the cut end of the double-sided adhesive tape 3 existing at the pressure area of the pressure roll 10 is slightly fed back to the unwinding brake drum 1 side to be attached to the next paper tube. Be prepared to apply double-sided adhesive tape.

M is a motor, and a belt 27 connects a pulley 26 of this motor M and a friction pulley 28 that rotates the winding slip drum 5.
In other words, the winding slip drum 5 is connected to the motor M via a friction plate, and the driving force of the motor M is transmitted to the motor M through the frictional force. When the braking action of the unwinding brake drum 1, which is stronger than the frictional force, is applied to the drum 5, the rotation is stopped and the pressure roll 10 is rotated.
When the transfer force of the paper tube P is applied to the adhesive tape 2 by applying pressure to the adhesive tape 2, it rotates and winds up the release tape 4.

Further, the unwinding brake drum 1 is braked by a friction plate, and the braking friction force is set to be larger than the friction force of the winding slip drum 5 to bring the drum 5 to a stopped state, and the pressure roll 10 is Pressure is applied to the paper tube P to attach the adhesive tape 2.
When the transfer force of the paper tube P is applied to the slip drum 5, the slip drum 5 starts rotating.

Next, the operation of the tape applying device will be explained based on FIG. 2.

As mentioned above, the braking force of the unwinding brake drum 1 is set to be smaller than the frictional force of the winding slip drum 5, and the braking force of the unwinding brake drum 1 is set to be smaller than the frictional force of the winding slip drum 5. The second tension roll 8.degree. 18 is maintained at the broken line position by the operation of the cylinder 22, with the adhesive tape 2 and the starting end of the double-sided adhesive tape slightly returned in the counter-transfer direction. Furthermore, the adhesive tape 2 is wound around the unwinding brake drum 1, and this adhesive tape 2 is applied to the unwinding brake drum 1 from the first. 2nd guide roll 6°7, 1st
The release tape 4 is applied to the lower circumferential surface of the pressure roll 10 via the tension roll 8 and the third guide roll 9, and only the release tape 4 is passed from the pressure roll 10 to the fourth guide roll 171, the second tension roll 18, and the S-th guide. It is wound around the winding slip drum 5 via a roll 19 and a sixth guide roll 20.

In the above state, first, as shown in FIG.
Under these conditions, the paper tube P is being fed in the direction of the arrow, and the tip end surface of the paper tube P is in the direction of the pressure roll 10. From this state, where the paper tube P has not yet passed through the lower part, the paper tube P is fed eight times in the direction of the arrow, and its tip end passes through the bottom dead center of the pressure roll 10 as shown in FIG. 2B. When the tip end surface is sent out by a predetermined length from the bottom dead center of the pressure roll 10,
As shown in FIG. 2C, the pressure roll 10 is connected to the cylinder 14
is moved from the standby position to the pressurized position by the action of
Press the adhesive tape 2 onto the paper tube P. At this time cylinder 22
Due to the operation of 1st. The second tension rolls 18 are both moved from the broken line position to the solid line position and are in a state where tension is applied to the release tape 4, and the adhesive tape 3 is pressed and clamped against the paper tube P by the pressure roll 10 as described above. As a result, the transporting force of the paper tube P is applied to the adhesive tape 2, which cooperates with the rotational driving force of the slip drum 5 to apply bow tension to the adhesive tape 2, causing the unwinding brake drum 1 to rotate and unwind. Leading up to the start.

As shown in the second diagram, when the chain begins to unwind, the starting end of the double-sided adhesive tape 3 is introduced into the pressure area between the pressure roll 10 and the paper tube 2, and at the same time it is pasted on the tip side of the paper tube. Peel off the release tape 4 from the exit side of the pressure area and wind it onto a winding slip drum 5 via a guide roll or the like.
As shown in FIG. 2E, only the double-sided adhesive tape 3 is applied along the axial direction of the paper tube P as the chain winds up. In this way, the double-sided adhesive tape 3 is attached to the paper tube P, and as shown in FIG.
is operated to move the pressure roll 10 to the standby position shown in FIG. The transmission is stopped, and the rotation of the unwinding brake drum 1 is stopped. As a result, a transfer force of the paper tube P in the direction of the arrow is applied to the adhesive tape 3, and this tension causes it to be transferred to the release tape 4.
The end of the adhesive is formed by cutting from the vicinity of the peeling start site. When the pressure roll 10 is moved to the standby position, the first
．． The second tension roll 8.18 is moved from the solid line position to the broken line position to apply tension to the unwinding side and slightly feed back the adhesive tape 2 in the opposite direction to the transport direction, so that both sides The starting end of the adhesive tape 3 is set slightly back from the bottom dead center of the pressure roll 10 in the direction opposite to the transport direction, in preparation for pasting onto the next paper tube.

The double-sided adhesive tape 3 is attached to the pressure roll 1 as shown in FIG.
By setting the timing of pressurization and release of 0, it is pasted continuously with a slight margin on the starting end and rear end of the paper tube P, and it is also pasted at multiple locations at predetermined intervals in the axial direction of the paper tube. be able to.

Further, as shown in FIG. 4, the double-sided adhesive tape 3 can be pressed at the end of application to the edge of the rear end surface of the paper tube with a pressure roll 10, and cut at the edge position.

As described in detail, in the present invention, when the pressure roll is separated from the paper tube and the pressure is released, the slip drum for winding the release tape slips and stops rotating, and the adhesive tape is not fed. is stopped to secure the end of the double-sided adhesive tape, which is the starting point of pasting, in a predetermined position, and when the pressure roll is pressing the adhesive tape against the paper tube being transferred, the paper tube transfer force is applied, causing the slip drum and winding. While the drum rotates and winds up the release tape, it unwinds the adhesive tape, and as the release tape progresses, the tape is peeled off from the exit side of the pressure area by the pressure roll while the double-sided adhesive tape is rolled up. Appropriate application can be achieved by automatically progressing application at the pressurized site.

Further, as described in claim 2, by releasing the pressure on the paper tube by the pressure roll, the slip drum stops winding the release tape, and at the same time, the brake drum stops and the transfer force of the paper tube is reduced. is applied to the double-sided adhesive tape, a tensile force is applied to the double-sided adhesive tape by the braking action of the brake drum, and the double-sided adhesive tape can be instantly cut from the above-mentioned peeling start site that is not backed by the release tape.

Further, as described in claim 3, the above-mentioned cutting can be performed automatically by pressing the adhesive tape against the edge of the paper tube using a pressure roll.

As described above, by appropriately setting the timing of applying pressure to the paper tube and releasing the pressure, the pressure roll can easily attach double-sided adhesive tape without protruding onto the surface of the paper tube. To accurately solve the problem in which the applied end of a double-sided adhesive tape protrudes from both ends of a paper tube and supports the paper roll, as shown in the figure.

Further, according to the present invention, by repeating pressurization and release of pressure on the paper tube by a pressure roll, the peeling of the release tape, the application of the double-sided adhesive tape, and the cutting thereof can be automatically and successively performed. This allows the adhesive tape application work to be done efficiently and beautifully.

[Brief explanation of the drawing]

The drawings show an example of an applicator for carrying out the present invention. Figure 1 is a front view of the apparatus for applying double-sided adhesive tape to a paper tube, and Figures 2 A to F show the process of applying double-sided adhesive tape to a paper tube in order. Fig. 3 is a side view of the paper tube to explain how the double-sided adhesive tape is applied to the paper tube by the pressure roll, and Fig. 4 shows an example of cutting the double-sided adhesive tape by the pressure roll at the end of application. It is an enlarged side view of the paper tube shown. 1...Brake drum for unwinding, 2...Adhesive tape,
3... Double-sided adhesive tape, 4... Peeling tape, 5...
・Slip drum for winding, 10...pressure roll, P・
・Paper tube.

Claims (3)

[Claims] (1) Adhesive tape with release tape attached to one surface of the double-sided adhesive tape unwound from the unwinding brake drum,
The adhesive tape is introduced between a paper tube being transferred in the axial direction and a pressure roll provided so as to be able to come into contact with and separate from the paper tube, and the adhesive tape is brought into pressure contact with the paper tube by the pressure roll. The other surface of the double-sided adhesive tape is adhered to the paper tube, and then the transfer force of the paper tube is applied to the release tape through the pressure of the pressure roll, and at the same time, the adhesive tape is peeled from the exit side of the pressure area. The tape is peeled off and wound onto a winding slip drum, and as the winding progresses, the double-sided adhesive tape is forcibly unwound from the unwinding brake drum and the double-sided adhesive tape is applied at the pressurized area. A method of attaching double-sided adhesive tape to a paper tube characterized by: (2) By releasing the pressure on the paper tube by the pressure roll,
2. The method of attaching a double-sided adhesive tape to a paper tube according to claim 1, characterized in that the double-sided adhesive tape is cut from the vicinity of a peeling start point of the release tape by applying the transporting force of the paper tube to the double-sided adhesive tape. (3) The adhesive tape is pressed against the edge of the paper tube by the pressure roll, and the double-sided adhesive tape is cut from near the peeling start point of the release tape by the transfer force of the paper tube applied to the double-sided adhesive tape. A method for applying a double-sided adhesive tape to a paper tube according to claim 1.