JPH107328A - Continuous winding core and tape or sheet for continuous winding core - Google Patents

Abstract

(57) [Problem] To provide a core body that does not cause turbulence at a cut end portion when continuously winding a belt-shaped substrate. SOLUTION: A slight pressure-sensitive adhesive is applied to almost the entire surface of a continuous winding core 1 and a peelable protective film is stuck thereon, or a conventional pressure-sensitive adhesive tape or sheet is applied to a conventional core to form the core. Use

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to continuous winding of a band-shaped base material such as paper, film, metal foil, cloth and the like, and when a predetermined winding length is reached, a new core is switched to a new winding. The present invention relates to a core used in an apparatus, and a tape or sheet using a conventional core and exerting the same effect.

[0002]

2. Description of the Related Art FIGS. 4 and 5 are schematic diagrams showing an example of a turret type continuous winding device generally used in the prior art. FIG. 4 shows a state in which a continuous band-shaped substrate is wound. FIG. 5 is a conceptual diagram showing a situation immediately before switching for continuous winding.

In this configuration, two arms 18, 18 are provided in opposite directions about a turret shaft 14, respectively.
And 12 are provided parallel to the turret axis 14.
In FIG. 4, the core 11 is being wound, and 12 is a new core. 13 and 13 are guide rollers, 19 and 1
9 is an arm to be attached.

[0004] The supplied strip-shaped substrate 17 is tension-controlled by a dancer roller 20 or the like, and is wound around the core 11 via a guide roller 15. When the belt-shaped base material 17 wound on the core 11 has a predetermined winding length, the turret shaft 1
Reference numeral 4 turns in the illustrated direction, and the state shown in FIG. 5 is obtained. At this time, the running strip-shaped base material 17 approaches the spare core body 12 and is then cut by the cutter 16 in the width direction. Reference numeral 16-4 denotes a pressing roller for pressing the cut end of the band-shaped base material 17 against the core 12. Thereafter, the strip-shaped substrate 17 is continuously wound by the same repetitive operation.

Conventionally, when the flow speed of the strip-shaped base material is low or the winding state of the cut end portion is relatively turbulent, manual cutting and winding operations have been performed. However, if the flow speed of the strip-shaped base material is high and the cutting and winding operations are dangerous, apply a strong adhesive to a part of the winding core in advance or attach an adhesive tape. Thus, a device has been devised to facilitate the winding of the cut end.

[0006] Further, in the case of a wound product of a strip-shaped substrate that requires accuracy in the winding state of the cut end, an accumulator is attached immediately before the winding device to temporarily and locally control the line. It was devised to create a stop state of the flow and to perform cutting and winding manually and accurately.

In recent years, there have been many demands for increasing the speed of a base material in order to improve production efficiency, and the winding state of the cut end of the base material has been required to be more and more accurate in connection with the loss rate of a product. Further, applying a strong adhesive to a part of the above-mentioned winding core or attaching an adhesive tape has a danger of foreign matter being mixed in the next step, and the tension of the base material due to a shock at the time of peeling is reduced. It is considered undesirable due to fluctuations and the like.

For this reason, various mechanical devices have been devised, and as one example, a tapeless continuous cutting and winding device as shown in the operation diagram of FIG. 6 has been developed. Swivel axis 16-
1-2, a holding arm 16-2, which is configured to pivot when cutting from below, a cutter 16 attached to the holding arm 16-2, a holding roll 16-3, and a holding roller 1
6-4, an arm 15-2 configured to be swiveled from above with the swivel axis 15-1 as a center, and a guide roll 15-3 attached to the arm 15-2.
Is configured to embrace a new core 12. With such a configuration, it is devised that the band-shaped base material can be automatically cut and wound without applying an adhesive to the core body at the time of cutting or attaching an adhesive tape.

[0009]

Although the above-mentioned device has been developed, the device itself is complicated and expensive, and the reliability of the switching operation, wrinkles and breaks at the winding end are also high. There are many problems that need to be solved, such as problems such as jamming, abrasion of the band-shaped base material due to the operation of the holding roll, fluctuation in tension due to a change in the path length of the base material, and displacement in the width direction.

[0010] When the band-shaped substrate is wound around the core, no matter where the cut end comes on the circumference of the core, there is no wrinkle or fold, no abrasion and no displacement in the width direction. Entanglement is required, and further, it is required that no foreign matter such as tape or any residue remains on the cut end of the base material.

Further, since the base material that has started to be wrapped in close contact with the core due to the tension of the base material and the winding torque is transmitted by the frictional force between the base material and the surface of the core body, even the adhesive force for the wrapping is not enough. If so, strong adhesion is not required for the contact surface.

The present invention has been made in order to solve these problems, and an object of the present invention is to provide a core body which can continuously cut a strip-shaped substrate accurately and can be wound up.

[0013]

In order to solve the above-mentioned problems, in a core for continuous winding, almost the entire outer circumferential surface is easily peeled off from the substrate, and the surface of the substrate is peeled after the peeling. Is coated with a slight pressure-sensitive adhesive that does not leave any residue, and a peelable protective film is attached to the coated surface for transport and storage of the core.

As long as the application shape of the fine adhesive is substantially the entire outer circumferential surface of the core, it can be applied in a streaked form with an appropriate interval or applied in a substantially uniformly dispersed pattern. Absent.

The same purpose can be achieved by using a conventional core body and attaching a slightly adhesive tape or sheet to almost the entire outer circumferential surface of the core body. The above-mentioned slightly adhesive is applied to one surface of the core body on which the slightly adhesive tape and the sheet are located, and the adhesive is applied to the opposite surface which is to be adhered to the core. In addition, a peelable protective film is attached to the slightly adhesive surface, and this protective film is used for winding and stacking tape products and sheet products.
It can also serve as a release film for the pressure-sensitive adhesive on the opposite side of the fine pressure-sensitive adhesive.

It is to be noted that the coating shape of the slightly adhesive surface of the slightly adhesive tape or sheet may be a streak or a pattern as long as it is almost the entire surface as described above.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As a core, a paper tube, a plastic tube, a metal tube or the like is used. Fig. 1 (a) shows the core 1
FIG. 1 shows that almost all surface 2 is coated with a slight adhesive.
(B) shows an example of a horizontal line 3 as an example of a stripe shape, FIG. 1 (c) shows an example of a herringbone line 4, and FIG. It should be noted that a slight adhesive is applied to these cores 1, and a releasable protective film is attached after drying, but is not shown in FIG. 1.

FIG. 2 is a conceptual diagram showing a state where the product of the present invention is manufactured by using a paper tube 1a and incorporated into a Langston paper tube manufacturing machine. It can be produced by incorporating it in the final step of laminating paper with a PVC adhesive or the like.

A core such as a plastic tube or a metal tube is produced by applying a slight pressure-sensitive adhesive with a spray coat, a screen coat, a roll coat or the like, and winding a protective film 7 around the adhesive.

FIG. 3A shows a tape 6 for manufacturing a core for the same purpose using a conventional core, and FIG.
Is a sheet 6a. One side (b) of the tape 6 or the sheet 6a adhered to the core 1 is coated with an adhesive,
The surface (a) in contact with the strip-shaped base material 17 on the outside is coated with a slight adhesive on almost the entire surface. A releasable protective film 7 is adhered to these coated surfaces so that foreign matter does not adhere except during use.

[0021]

By employing such a core 1 and performing a continuous winding operation, the cut end of the strip-shaped base material 17 can be cut even by using a turret type continuous winding device generally used conventionally. Winding without wrinkles or breakage can be easily performed at any position on the circumference of the core body 1. Also, when cutting, substrate 1
It is not necessary to hold the core 7 in the core body 1, and accurate continuous winding without abrasion or displacement in the width direction is possible.

Further, it is possible to obtain an ideal wound product in which no foreign matter such as tape or any residue remains at the end of the base material at the start of winding.

If the releasable protective film 7 is wound around the surface of the used core 1 again and stored, repetitive use is possible, and a resource saving effect can be expected.

Further, even when a conventional core is used, the tape 1 or the sheet 6a of the present invention allows the core 1 to be easily manufactured even at the site of use.

As the fine pressure-sensitive adhesive, there are rubber-based and acrylic-based adhesives, and the adhesiveness thereof can be appropriately changed in consideration of the type, material, thickness, and the state of the post-process of the band-shaped substrate 17. .

As the protective film 7, a plastic film or a paper film can be used, and a film having a suitable protective function and releasability can be selected.

If the core 1 of the present invention is used,
Because of the accuracy of the cutting of 7 and the winding of the end thereof, the continuous operation of the slitter / rewinder, which has been forced to perform the intermittent operation, can be realized, and the operation efficiency can be improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a core according to the present invention, wherein FIG. 1 (A) shows a core coated with a slight adhesive on almost the entire surface, and FIG. 1 (c) shows a herringbone muscle, and FIG. 1 (d) shows an example of a pattern.

FIG. 2 is a conceptual diagram showing a state in which the product is incorporated into a Langston paper tube manufacturing machine when the product is manufactured using a paper tube.

3A and 3B show a tape and a sheet according to the present invention for use in a conventional core body, wherein FIG. 3A shows a tape and FIG. 3B shows a sheet.

FIG. 4 is a schematic configuration diagram illustrating an example of a turret type continuous winding device generally used in the related art, and is a conceptual diagram illustrating a state where a continuous band-shaped base material is wound.

FIG. 5 is a schematic configuration diagram showing an example of a turret type continuous winding device generally used in the related art, and is a conceptual diagram showing a state immediately before switching for continuous winding.

FIG. 6 is an operation explanatory view of an example of a tapeless continuous cutting and winding device.

[Explanation of symbols]

 Reference Signs List 1 core body 2 whole coated surface 3 horizontal streak coated surface 4 herringbone-shaped coated surface 5 patterned coated surface 6 tape 6a sheet 7 protective film

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[Procedure amendment]

[Submission date] July 8, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] Therefore, various mechanical contrivances have been made, the tape-less continuous cutting winding apparatus as shown in FIG. 6 has been developed as an example. Hugging arm 16-2, which is configured to rotate from below while rotating about rotation axis 16-1, and cutter 1 attached thereto
6, holding roll 16-3 and holding roller 16-4
The band-shaped base material 17 holds a new core 12 by the arm 15-2 configured to be swung from above with the swivel shaft 15-1 as a center when cutting, and the guide roll 15-3 attached thereto. It is configured to fit. With such a configuration, it is devised that the band-shaped base material can be automatically cut and wound without applying an adhesive to the core body at the time of cutting or attaching an adhesive tape.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

FIG. 5

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] Fig. 6

[Correction method] Change

[Correction contents]

FIG. 6

Claims (4)

[Claims] In a core for a continuous winding device, a slightly adhesive is applied to almost the entire outer circumferential surface, and a peelable protective film is attached to the surface of the slightly adhesive for transportation and storage. A continuous take-up core, characterized in that: 2. The applied shape of the applied slightly adhesive is applied in a streak shape with an appropriate interval over almost the entire outer cylindrical surface, or in a pattern shape almost uniformly dispersed. The continuous winding core body according to claim 1, wherein 3. A tape or sheet used for a core for a continuous winding device, wherein a slight adhesive is applied to one surface on the surface side of the core, and to a surface opposite to the adhesive side of the core. Is a tape or sheet for a continuous wound core, in which an adhesive is applied, and a peelable protective film is further adhered to these adhesive surfaces. 4. The applied shape of the applied slightly adhesive is applied in a streaked form at an appropriate interval over substantially the entire outer cylindrical surface, or is applied in a substantially uniformly dispersed pattern. The tape or sheet for a continuous winding core according to claim 3.