JP3090265U - Adhesive coated sheet winding device - Google Patents

Abstract

(57) Abstract: In winding a sheet to which an adhesive has been applied, it is ensured that a cutting tip is stuck to a new core tube, and even a sheet having low adhesive strength is easily wound around a core tube. In a winding device for a sheet having a pressure-sensitive adhesive surface coated on one surface, a full-roll roll (R) having a rotation direction of a core tube (C) opposite to that of a turret plate (T) and having been shifted by rotation of the turret plate (T). New winding core tube C that rotates in the reverse direction of the winding position
₁ , a sheet cutting blade 4 is provided so as to be freely inserted and removed, and the sheet F between the new core tube and the full roll R is located as close as possible to the cutting blade between the cutting blade 4 and the full roll R. A wrapping press roller 2 for pressing is provided so as to be able to contact and separate from the sheet, and before cutting the sheet, presses the sheet between the cut portions. When cutting the sheet, the tip of the adhesive surface of the cut sheet is held in the new core tube. the READERS and with paste, the pasted sheet is folded by the rotation of Aramaki core tube C _1, taken Aramaki core tube C ₁ wound subsequent sheet adhesive face as the surface.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an improvement in a winding device that winds a sheet coated with an adhesive on one surface thereof onto a core tube with the adhesive surface facing the surface.

[0002]

[Prior art]

 Rolls obtained by winding a sheet coated with an adhesive on one surface, with the adhesive surface facing the surface, and wound around a core tube, etc., are widely used daily as adhesive rolls for removing dust such as carpets. The kind of roll is wound up by continuously feeding the above-mentioned sheet or film to the core tube of the turret board rotating in the same direction as the turret board via the touch roller with its adhesive surface as the surface side. When rewinding from a full roll to a new core tube, the new core tube is preliminarily subjected to an adhesive treatment such as hot melt or double-sided adhesive tape. The tip of the sheet cut by the cutting blade was wound around a new core tube using the adhesion.

[0003] However, when the sheet coated with the adhesive is wound up, the adhesive surface is on the outer surface side of the core tube and the back surface is subjected to a release treatment. Even after the treatment, there was a problem that adhesion was poor and good adhesion could not be achieved, and improvement was required.

Accordingly, the present applicant has dealt with the above-mentioned situation and has made it possible to improve the adhesion at the leading end of the cut sheet without requiring a hot-melt or double-sided adhesive tape or the like for the new core tube. A method for improving the workability of continuous winding of the sheet was previously proposed. (Japanese Patent Application No. 2001-313385)

[0005] fully wound the method as shown in FIG. 6, when changing Aramaki core tube C ₁ wound from fully wound roll R took sheet F sent continuously constant length wound, a transition co When cutting the sheet by the sheet cutting blade 4 between Aramaki core tube C ₁ of the roll R and the winding position, rotate the adhesive surface F ₁ the tip of the cut sheet in the reverse direction while the sheet flow direction Aramaki after against affixed pressed to the core tube C ₁ surface, pasted folded by the rotation of the Aramaki core tube C ₁ to rotate the sheet F pasted pressed in the opposite direction, the adhesive surface subsequent sheet a method of taking Aramaki core tube C ₁ wound the F ₁ as the surface,-out如illustrated device is used.

In this device, a dancer roller 11 is swingably provided between two guide rollers 10, 1, and a sheet passing through the first guide roller 10 is hung on a dancer roller 11 to form a second roller. By feeding the sheet to the guide roller 1, the slack of the sheet between the two guide rollers 10, 1 can be absorbed.

[0007] The core tube C is sequentially supplied to a predetermined position of the turret board T through the supply unit 12, and is taken in and out between the winding position and the transition position of the full roll R. A sheet cutting blade 4 for cutting the sheet between them is provided freely, and the full roll R is sequentially shifted by the rotation of the turret board T and discharged onto the receiving table 13 at a predetermined discharge position as needed. And sent to the next step.

[0008]

[Problems to be solved by the invention]

 However, in recent years, adhesive rolls have been expanded to a variety of applications, and in accordance with this, there are rolls having strong and weak adhesive strength. Of these, those with strong adhesive strength can be easily wound by a winder, but weak adhesive strength is becoming extremely difficult to cut and wind the sheet at high speed. For example, the adhesive strength varies depending on, for example, carpet dust removal, pet hair removal, and wooden board flooring, and is not necessarily uniform. In particular, in the case of an adhesive sheet that requires a weak adhesive force, if the adhesive force of the adhesive sheet is used in cutting and rewinding the sheet, sufficient adhesion may not be obtained by instantaneous contact.

In view of the above situation, the present invention solves the problem by using an adhesive sheet on the surface of the new core immediately before cutting the sheet, particularly in an apparatus for performing sheet winding according to the above proposal. Even if the adhesive strength of the sheet is weak, the new core can be securely wound around the new core by adding a winding press roller that makes the adhesive sheet easy to stick to the new core tube. The purpose is to make it possible to wind up the missing sheets.

[0010]

[Means for Solving the Problems]

 In other words, the present invention for achieving the above object provides a winding device for winding a sheet coated with an adhesive on one surface onto a core tube of a turret winding machine with the adhesive surface as a surface side, The direction of rotation of the turret machine is opposite to that of the turret machine. A winding press roller for holding the sheet between the new core tube and the full roll between the cutting blade and the full roll is provided so as to be able to approach and separate from the sheet. Hold down the sheet between the winding roll and the new core tube, and when cutting the sheet, increase the amount of embedment on the new core tube, which rotates in the reverse direction while rotating the adhesive end of the cut sheet in the flow direction of the sheet. Along with this pasted sea The folded by the rotation of Aramaki core tube which rotates in the opposite direction, after which the sheet so as to wind the Aramaki core tube adhesive side as the surface.

[0011]

[Action]

 According to the above-described device of the present invention, the pressure-sensitive adhesive surface of the incoming pressure-sensitive adhesive sheet comes into contact with the surface of the new core tube rotating in the direction opposite to the sheet flow direction while rotating the turret in the sheet flow direction. It is cut by a cutting blade between the full roll and the new core tube. The front end of the cut sheet is instantaneously attached to the new core tube rotating in the opposite direction using the adhesive surface together with the cutting by the adhesive force of the sheet. The adhesive surface of the sheet comes into contact with the surface, and the amount of sheet embedment on the surface of the new core tube increases due to the pressing of the wrapping press roller, so that the sheet can be more securely adhered to the new core tube. At this time, since the new core tube is in the opposite direction to the rotation of the turret, the sheet is immediately turned back and the subsequent sheet is wound in the same flow direction as the sheet with the adhesive surface as a surface.

[0012]

[Embodiment of the invention]

 Hereinafter, specific embodiments of the present invention will be described with reference to the embodiment shown in the accompanying drawings. FIG. 1 is a schematic view showing a main part of a winding device for carrying out the present invention. FIG. 2 is a diagram showing a sheet cutting method according to the present invention, and FIG. The state of time is shown. FIG. 4 is a state diagram when the winding to the new core tube and the full roll are stopped, and FIG. 5 is a state diagram when the turret is rotated.

In these figures, the device of the present invention basically applies a sheet F coated with an adhesive on one side, which is continuously fed from the previous process, similarly to the conventional device shown in FIG. It has become a Chakumen F ₁ from the winding take configuration Makishinkan C which is hung on the circumference of the turret plate T via the guide roller 1 in the surface, Makishinkan C sequentially supply unit (shown ) Is supplied to a predetermined position of the turret board T, and is moved by the rotation of the turret board T to perform winding at the winding position. After that, it is shifted to a predetermined position, and is discharged onto the receiving table at the discharge position as appropriate, and is sent to the next process.

[0014] Then, also out freely when 6 between the transition position of the core tube C ₁ and the fully wound roll R of the winding position, and the sheet cutting blade 4 for cutting the sheet is provided therebetween I have. Although not shown, a dancer roller for absorbing the slack of the sheet F to be fed is provided at the front of the guide roller 1 so as to be able to swing as required, as shown in FIG.

However, in the present invention, in the above-described winding device, the rotation directions of the core tube C and the turret board T are opposite to each other. The winding direction is counterclockwise, but the turret plate T is clockwise, and both are always rotating in the opposite direction during operation, as in the device shown in FIG. in this invention, further to effectively perform its winding, between the fully wound roll R which shifted Aramaki core tube C ₁ at the winding position, and a cutting blade 4, migrated fully wound roll R The pressing and holding roller 2 is provided so as to be capable of coming in contact with and separating from the sheet in between by the driving mechanism 3 and is pushed in just before cutting the sheet so that the sheet is embraced in the new core tube, and after the sheet is fully wound. , The drive mechanism in the vicinity of the shifted full roll C position Is separable therefrom Makishiri roller 5 fully wound roll R is provided, has a winding ass fully wound roll R to be surely pressed against the said rolls by. Here, it is preferable that in advance subjected to treatment such as adhesive surface F ₁ is not Hittsuka sheet F sent on the surface of the winding pressing roller 2.

Thus, in the above-described apparatus, the sheet F fed through the guide roller 1 is fully wound, moves to the next position by rotation of the turret board, and rotates to the winding position. more sheet in the sheet cutting blade 4 between the Aramaki core tube C ₁ and the fully wound roll R to rotate in a direction are cut, fully wound roll as in the cutting immediately before Makizuke pressing roller 2 shown in FIG. 1 The sheet between the core roll and the new core tube is pressed down, and at the same time as the cutting, the end of the sheet wound on the full roll R is pressed by the trailing end roller 4 so as to be securely wound around the full roll R, and cut. tip adhesive surface of the sheet F is being embraced in Aramaki core tube in contact with Aramaki core tube C _1, as shown in FIG. 2, it is pasted. And this time, the adhesive surface of the sheet leading end of the sheet F that has been cut in Aramaki core tube C ₁ is Osaekoma the winding pressing roller 2 at the same time paste instantly adhesion of the sheet is further slightly attached, the sheet is affixed to more reliably Aramaki core tube C _1.

[0017] Te Thus, the tip of the cut Sea and F Some its adhesive face F ₁ as described above, affixed to Aramaki core tube C ₁ rotating in the motor Retto board opposite direction, further, when the amount embrace between them is pasted flute, Aramaki core tube the adhesive surface F ₁ as the surface by Aramaki core tube to the flow direction of the sheet is rotated in the reverse direction the sheet is folded back Yuku been taken C ₁ wound. At this time, the role of the winding press roller 2 ends.

That is, the full roll is moved and stopped by the rotation of the turret board, and the sheet is adhered to the new core tube rotating in the opposite direction while maintaining its flow direction. As a result of the rotation in the direction, the sheet is partially folded immediately after the sheet is stuck, and the adhesive surface is turned to the front side as shown in FIG. 5, and the subsequent winding is performed in the same direction as the flow of the sheet. The winding press roller 2 is raised by the operation of the drive mechanism 3 and is separated from the sheet press position.

Thereafter, when winding is performed on the new core tube using the adhesive surface applied to the sheet surface, the winding press roller 2 is separated from the sheet presser 1 and shown in FIG. As well as returning to the standby position, the winding end roller 4 also separates from the full roll R as shown in FIG. 5, and returns to the original position. Then, when the full roll is full again and the full roll moves, the winding press roller 2 and the trailing end roller 4 sequentially move, respectively, to perform required operations. Thereafter, the above operation is repeated, and the winding around the core tube is repeated along with the rotation of the turret board, whereby the sheet coated with the adhesive is efficiently wound.

[0020]

[Effect of the invention]

 As described above, in the present invention, the adhesive surface of the sheet sent is pressed against the surface of the new core tube rotating in the opposite direction to the rotation of the turret board, while rotating, and the sheet between the new core tube and the full roll is rotated. In the apparatus, the end of the cut sheet is brought into contact with the new core tube, the sheet is turned by rotation of the new core tube, and the adhesive surface is wound on the new core tube. When the sheet between the full roll and the new core tube is pushed in just before cutting, and a wrapping press roller that increases the amount of embracing contact with the new core tube is provided. However, after the cut end is firmly stuck by pressing, it is folded back and can be easily wound around the core tube with the adhesive surface facing the flow of the sheet. Sometimes, even if it is always rotating, there is no obstacle to winding. There is no need to separately apply an adhesive treatment to the newly wound core tube, unlike conventional adhesive coated sheets, and unlike the adhesion to the release treated surface, the adhesion is extremely reliable and the quality is stable. It is possible to efficiently obtain a roll of the pressure-sensitive adhesive sheet.

In particular, according to the present invention, at the time of winding, it can be said that the leading end of the sheet is wound around the new core tube rotating in the direction opposite to the flow direction of the sheet. And the sheet is folded back in the same direction as the flow direction of the sheet.Therefore, the sheet hardly sags even if the adhesive strength of the sheet is weak, and the sheet is efficiently wound around the new core tube as it flows. There is an advantage to attach.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a main configuration of a winding device according to the present invention.

FIG. 2 is an explanatory diagram of a state when cutting a sheet in the apparatus.

FIG. 3 is an explanatory view showing a state immediately after winding the sheet around a new core tube after cutting the sheet of the apparatus.

FIG. 4 is an explanatory diagram of a state in which a full roll is stopped and wound on a newly wound core tube.

FIG. 5 is an explanatory view when the turret board is turned and the winding press roller and the trailing end roller are in a return state.

FIG. 6 is a schematic view showing a main part of a winding device proposed earlier by the present applicant.

[Explanation of symbols]

T Turret board F Sheet F ₁ Adhesive surface of sheet C Core tube C ₁ New core tube 1 Guide roller 2 Roller presser roller 4 Sheet cutting blade 5 Roller end roller

Claims (1)

[Utility model registration claims] 1. A winding device for winding a sheet coated with an adhesive on one surface onto a core tube of a turret winding machine with the adhesive surface on the front side, wherein the rotation direction of the core tube corresponds to the rotation direction of the turret disk. A sheet cutting blade is provided so as to be freely inserted and removed between a full roll which is in the opposite direction and is shifted by rotation of the turret disk and a new core tube which is rotated in a direction opposite to the turret disk at a winding position. A winding press roller for holding the sheet between the new core tube and the full roll between the full roll and the full roll is provided so as to be able to contact and separate from the sheet. When cutting the sheet, the tip of the adhesive surface of the cut sheet is wrapped around a new core tube that rotates in the reverse direction with the flow direction of the sheet. Rotation of rotating new core tube The folded back, followed by the sheet winding apparatus of the pressure-sensitive adhesive coating sheet which is characterized in that no such wound into Aramaki core tube adhesive side as the surface.