TW202146316A - Winding device, film roll manufacturing system, and film roll manufacturing method can prevent the film from damage, and prevent the winding from tightness or the offset at the same time - Google Patents

Abstract

A winding device includes a near roller and a first contact roller. The first contact roller is movable between a contact position where the first contact roller is in contact with a film roll, and a separation position where the first contact roller is away from the film roll. When the first contact roller moves from the separation position toward to the contact position in the state while the film roll is rotating, the first contact roller is configured to start to rotate before being arranged at the contact position.

Description

Winding device, manufacturing system of film roll, and manufacturing method of film roll

The present invention relates to a winding device, a manufacturing system for a film roll, and a method for manufacturing the film roll.

Conventionally, there has been known a biaxial turret winder including a contact roller that is brought into contact with a film web (for example, refer to Patent Document 1). prior art literature Patent Literature

Patent Document 1: Japanese Patent Laid-Open No. 8-282885

The problem to be solved by the invention In the winding device described in the above-mentioned Patent Document 1, when the contact roller contacts the film web while the film web is rotating, the film may be damaged by friction with the contact roller.

The present invention provides a winding device, a film roll manufacturing system, and a film roll manufacturing method that can suppress film damage and at the same time suppress winding tightness or winding offset.

means of solving problems The present invention [1] includes a winding device comprising: a proximity roller, which is disposed away from a film roll formed by winding a film around a core, and is in contact with the film conveyed to the film roll; and The roller can move between a contact position in contact with the film roll and a distance position away from the film roll, and can receive power to rotate in a state away from the film roll; the film roll is rotating In this state, when the contact roller moves from the distance position to the contact position, the contact roller starts to rotate before being arranged at the contact position.

According to the above-described configuration, when the film roll is in a state of being away from the approaching roller, when the film is wound, air is prevented from being entrapped between the films and the winding becomes tight.

Moreover, by extruding a part of the air entangled between the films by contacting the rollers, it is possible to suppress excessive entrapment of the air between the films. Thereby, the winding misalignment can be suppressed.

In addition, when the contact roller moves from the separation position to the contact position while the film web is rotating, the contact roller starts to rotate before being arranged at the contact position.

Therefore, when the contact roller is in contact with the film web, the peripheral speed difference between the contact roller and the film web can be reduced.

As a result, damage to the film due to friction with the contact roller can be suppressed.

All in all, damage to the film can be suppressed and at the same time winding tightness or winding misalignment can be suppressed.

The present invention [2] includes the winding device according to the above [1], wherein the film is an easily adhesive film used for a polarizing plate of an image display device.

According to the above-described configuration, damage to the film can be suppressed, and thus it is suitable for an easily adhesive film used for a polarizing plate of an image display device.

The present invention [3] includes the winding device according to the above [1] or [2], wherein in a state in which the film web is rotating and the contact roller is in contact with the film web, the peripheral speed of the contact roller is equal to that of the contact roller. The peripheral speeds of the aforementioned film rolls are the same.

According to the above-described configuration, the damage of the film due to friction with the contact roller can be further suppressed.

The present invention [4] includes the winding device according to the above [3], wherein the contact roller is an orientation roller.

According to the above configuration, the peripheral speed of the contact roller can be made the same as the peripheral speed of the film web while the contact roller is in contact with the film web.

The present invention [5] includes the winding device according to any one of the above [1] to [4], further comprising: a turntable that supports the core; and a cutting, splicing and reel changing device that can be close to the film roll Move between the first position of the material and the second position farther away from the film roll than the first position; when the cutting, splicing and changing device is disposed in the first position, the contact roller is disposed in the separation position; and in the state that the cutting, splicing and changing device is arranged at the second position, the contact roller is arranged at the contact position.

According to the above configuration, interference between the cutting and reel changing device and the contact roller can be prevented.

The present invention [6] includes a production system for a film roll including the winding device according to any one of the above [1] to [5].

The present invention [7] includes a method for producing a film roll, which includes a winding step of winding the film on the core using the winding device according to any one of the above [1] to [5]. superior.

Invention effect According to the winding device, the manufacturing system of a film roll, and the manufacturing method of the film roll of the present invention, the film can be suppressed from being damaged, and at the same time, winding tightness or winding deviation can be suppressed.

1. Manufacturing system of film roll The manufacturing system 1 of the film roll material R is demonstrated.

As shown in FIG. 1 , the thin film F includes a base material S and a coating film C. As shown in FIG. In addition, the film F may not include the coating film C but may be constituted only by the base material S. The base material S has a first surface S1 and a second surface S2 in the thickness direction of the base material S. As shown in FIG. The base material S may have a plurality of layers. In other words, the film F may have a plurality of layers. The film C is arranged on the first surface S1 of the substrate S. The film C covers the first surface S1 of the substrate S. The film C may also be an easily adhesive layer. When the coating film C is an easily bonding layer, the film F is an easily bonding film. The easy-to-bond film is used, for example, as a polarizer for image display devices such as mobile devices, car navigation devices, personal computer screens, and televisions. Specifically, the easily adhesive film is used as a protective film for protecting the polarizer of a polarizing plate. The easily adhesive film is bonded to the polarizer through the adhesive layer. The easily bonding film is bonded to the polarizer using the easily bonding layer.

As shown in FIG. 2, the manufacturing system 1 of the film roll material R is provided with the extrusion forming apparatus 2, the 1st stretching apparatus 4A, the coating apparatus 3, the 2nd stretching apparatus 4B, the slit processing apparatus 5, the knurling processing apparatus 6 and the coiling device 7.

(1) Extrusion forming device The extrusion forming apparatus 2 is used to extrude the base material S (extrusion forming step). The substrate S extruded from the extrusion forming apparatus 2 has a sheet shape.

The base material S is made of thermoplastic resin. Examples of thermoplastic resins include acrylic resins, polyolefin resins, cyclic polyolefin resins, polyester resins, polycarbonate resins, polystyrene resins, polyamide resins, polyimide resins, acetate resins (diacetic acid cellulose, cellulose triacetate, etc.), etc.

In the manufacture of an easy-to-bond film used as a protective film of a polarizer, the material of the substrate S is preferably an acrylic resin.

In addition, when producing an easily adhesive film used as a protective film of a polarizer, the acrylic resin may be an acrylic resin having a glutaric anhydride structure or an acrylic resin having a lactone ring structure. Acrylic resins with a glutaric anhydride structure and acrylic resins with a lactone ring structure have high heat resistance, high transparency, and high mechanical strength, and are therefore suitable for producing polarizing plates with high degrees of polarization and excellent durability. Acrylic resins having a glutaric anhydride structure are described in Japanese Patent Laid-Open No. 2006-283013, Japanese Patent Laid-Open No. 2006-335902, and Japanese Patent Laid-Open No. 2006-274118. Acrylic resins having a lactone ring structure are described in Japanese Patent Laid-Open No. 2000-230016, Japanese Patent Laid-Open No. 2001-151814, Japanese Patent Laid-Open No. 2002-120326, Japanese Patent Laid-Open No. 2002-254544, In Japanese Patent Laid-Open No. 2005-146084.

In addition, the base material S may contain other thermoplastic resins other than the acrylic resin in addition to the acrylic resin. By containing other thermoplastic resins, the birefringence of the acrylic resin can be eliminated to obtain an easy-bonding film with excellent optical isotropy. Moreover, the mechanical strength of the easy-to-bond film can also be improved.

In addition, the substrate S may also contain additives such as antioxidants, stabilizers, reinforcing materials, ultraviolet absorbers, flame retardants, antistatic agents, colorants, fillers, plasticizers, lubricants, and fillers.

(2) The first extension device The first stretching device 4A is used to stretch the substrate S obtained by the extrusion molding step in the traveling direction MD of the substrate S (first stretching step).

(3) Coating device The coating device 3 is used for coating the coating liquid on the first surface S1 of the base material S extruded through the extrusion molding step (coating step). In addition, on the first surface S1 of the substrate S, surface treatments such as corona treatment and plasma treatment may also be performed after the extrusion forming step and before the coating step.

As the coating apparatus 3, a bar coater, a gravure coater, a contact coater, etc. are mentioned, for example.

The coating liquid is an easily bonding composition for forming an easily bonding layer when producing an easily bonding film.

The easy-bond layer contains a binder resin and fine particles.

As a binder resin, thermosetting resins, such as a urethane resin and an epoxy resin, are mentioned, for example, and thermoplastic resins, such as an acrylic resin and a polyester resin, are mentioned, for example. When the easy-adhesive film is used as a protective film for the polarizer, the adhesive resin is preferably a thermosetting resin. A plurality of binder resins can be used in combination.

Examples of fine particles include oxides such as silicon oxide (silica), titanium oxide (titania), aluminum oxide (alumina), and zirconia (zirconia); examples thereof include carbonates such as calcium carbonate; examples include calcium silicate, aluminum silicate, etc. , silicates such as magnesium silicate; for example, silicate minerals such as talc and kaolin; for example, phosphates such as calcium phosphate and the like. When the easy-adhesive film is used as a protective film for the polarizer, the fine particles are preferably oxide, preferably silicon oxide. A plurality of fine particles can be used in combination.

The coating liquid (easy-bonding composition) contains a resin component, the above-mentioned fine particles, and a dispersion medium.

The resin component forms the film (easy-bonding layer) of the above-mentioned binder resin by the stretching step described later. When the binder resin is a urethane resin, the resin component includes, for example, a water-based urethane resin. Examples of the water-based urethane resin include non-reactive water-based urethane resins which are emulsions of urethane resins, and examples include emulsions of urethane resins in which isocyanate groups are protected with a blocking agent. Reactive water-based urethane resin, etc. When the binder resin is a urethane resin, the coating liquid may contain a urethane curing catalyst (triethylamine, etc.) and an isocyanate monomer.

Examples of the dispersion medium include water; examples thereof include alcohols such as methanol and ethanol; and examples thereof include ketones such as acetone and methyl ethyl ketone.

(4) Second extension device The second stretching device 4B is used for drying the coating liquid coated in the coating step. Thereby, the coating liquid becomes the coating film C described above. And the 2nd extending|stretching apparatus 4B is used for extending|stretching the base material S on which the film C was formed in the width direction TD of the base material S after heating (2nd extending|stretching process). The width direction TD is orthogonal to the traveling direction MD. By the second stretching step, the substrate S on which the coating film C is formed is stretched, and the above-mentioned thin film F can be obtained.

(5) Slitting processing device The slitting processing device 5 cuts the film F stretched by the stretching step into a predetermined width (slitting step).

(6) Knurling processing device The knurling forming processing apparatus 6 is for forming knurling at both ends in the width direction of the film F cut into a predetermined width by the slitting step (knurling forming step). The knurling is formed by laser. Knurling can also be formed by heated embossing rolls.

(7) Coiling device The winding device 7 is used to wind up the film F having the knurling formed in the knurling step on the core W (winding step). By the completion of the winding step, the film roll R in which the film F is wound on the core W can be obtained.

2. Details of the coiling device Next, the details of the winding device 7 will be described.

As shown in FIG. 3, in this embodiment, the winding device 7 is a rotary type winding device. The winding device 7 includes a turntable 11 , a first cutting and rewinding device 12A, a second cutting and reeling device 12B, an approach roller 13 , a first contact roller 14A, and a second contact roller 14B.

(1) Turntable The turntable 11 supports two or more cores W. In this embodiment, the turntable 11 supports two cores W1 and W2. The turntable 11 can be at the first winding position (see FIG. 6 ) for winding the film F on the core W1 and the second winding position (see FIG. 8 ) for winding the film F on the core W2 During this time, it rotates on the axis A extending in the width direction TD. The axis A is disposed between the core W1 and the core W2. In a state where the turntable 11 is arranged at the first winding position, the winding core W1 is arranged between the axis A and the approaching roller 13 . In a state where the turntable 11 is arranged at the second winding position, the winding core W2 is arranged between the axis A and the approaching roller 13 .

Specifically, the turntable 11 includes a first frame 111 , a second frame 112 , and two guide rollers 113A and 113B.

(1-1) The first frame The first frame 111 supports two cores W1 and W2. In a state where the turntable 11 is arranged at the first winding position, the first frame 111 extends in the first direction. The first direction is orthogonal to the width direction TD. The first frame 111 has one end supporting the winding core W1 and the other end supporting the winding core W2 in the first direction. The other end portion of the first frame 111 is arranged on the opposite side of the one end portion of the first frame 111 with respect to the axis A. As shown in FIG. When the turntable 11 is rotated, the first frame 111 can be rotated about the axis A. As shown in FIG.

(1-2) The 2nd The second frame 112 supports two guide rollers 113A and 113B. When the turntable 11 is arranged at the first winding position, the second frame 112 extends in the second direction. The second direction is orthogonal to the width direction TD and the first direction. The second frame 112 has one end portion supporting the guide roller 113A and the other end portion supporting the guide roller 113B in the second direction. The other end portion of the second frame 112 is disposed on the opposite side of the one end portion of the second frame 112 with respect to the axis A. As shown in FIG. When the turntable 11 is rotated, the second frame 112 can be rotated about the axis A together with the first frame 111 .

(1-3) Guide rollers As shown in FIG. 3 , in the state where the film F is wound on the core W2, when the turntable 11 is arranged at the first winding position, the guide roller 113A will lift the film F from the approaching roller 13 to the core W2 , so that it does not come into contact with the core W1.

Specifically, when the film F is to be wound on a new core W1 after winding the film F on the core W2 is completed, the turntable 11 moves from the second winding to a state in which the film F is wound on the core W2. The take-up position (refer to FIG. 8 ) is rotated to the first take-up position (refer to FIG. 3 ). At this time, by the rotation of the turntable 11, the film F to be directed from the approaching roller 13 to the core W2 is mounted on the guide roller 113A. The film F to be directed from the approach roller 13 to the guide roller 113A does not come into contact with the core W1.

In addition, in the state where the film F is wound on the core W1, when the turntable 11 is rotated from the first winding position to the second winding position, the guide roller 113B will guide the roller 113 to move from the approaching roller 13 to the winding core W1. The film F is lifted so that it does not come into contact with the core winding W2.

(2) The first cutting, splicing and reel changing device and the second cutting, splicing and reeling device As shown in FIGS. 4 and 5 , in a state where the film F is wound on the core W2, when the turntable 11 is arranged at the first winding position, the first cutting and reeling device 12A and the second cutting and reeling The device 12B cuts the film F to be directed from the approaching roller 13 to the guide roller 113A, and winds the film F from the approaching roller 13 onto a new core W1.

(2-1) The first cutting and reel changing device The first cutting, reeling and changing device 12A makes the film F to be brought into contact with the core W1 from the approaching roller 13 to the guide roller 113A.

The first cutting, splicing and reel changing device 12A is movable between a first position (refer to FIG. 4 ) and a second position (refer to FIG. 3 ). In a state where the first cutting, splicing, and reeling device 12A is arranged at the first position, the first cutting, splicing, and reeling device 12A is in a state close to the core W1. In a state where the first cutting, reeling and changing device 12A is arranged at the second position, the first cutting and reeling changing device 12A is in a state farther away from the core W1 than the first position.

As shown in FIGS. 3 and 4 , in the state where the film F is wound on the core W2, when the turntable 11 is arranged at the first winding position, the first cutting, splicing and changing device 12A moves from the second position to the second position. 1 position move. In a state where the first cutting, reeling and changing device 12A is arranged at the first position, the first cutting and reeling and changing device 12A brings the film F to be brought into contact with the core W1 from the approaching roller 13 to the guide roller 113A.

Specifically, the first cutting, reeling and changing device 12A includes a cutting and reeling roller 121 . When the first cutting, reeling and changing device 12A is arranged at the first position, the cutting and reeling roller 121 sandwiches the film F from the approaching roller 13 to the guide roller 113A between it and the core W1. Thereby, 12A of 1st cutting and reel-changing apparatuses make the film F which is going from the approaching roller 13 to the guide roller 113A contact with the core W1.

(2-2) The second cutting and reel changing device As shown in FIGS. 4 and 5 , when the first cutting, reeling and changing device 12A is in a state in which the film F from the approaching roller 13 to the guide roller 113A contacts the core W1, the second cutting and reeling changing device 12B cuts The film F from the approaching roller 13 to the guiding roller 113A is broken.

The second cutting, splicing and changing device 12B is movable between a first position (refer to FIG. 4 ) and a second position (refer to FIG. 3 ). In a state where the second cutting, reeling and changing device 12B is arranged at the first position, the second cutting and reeling changing device 12B is in a state close to the core W1. In a state where the second cutting, reeling and changing device 12B is arranged at the second position, the second cutting and reeling changing device 12B is in a state farther away from the core W1 than the first position.

As shown in FIGS. 3 and 4 , in a state where the film F is wound on the core W2, when the turntable 11 is arranged at the first winding position, the second cutting, splicing and changing device 12B moves from the second position to the second position. 1 position move. As shown in FIG. 5 , when the second cutting, reeling and changing device 12B is arranged at the first position, the second cutting and reeling and changing device 12B cuts the film F to be directed from the approach roller 13 to the guide roller 113A.

Specifically, the second cutting, reel-changing device 12B includes a cutter 122 . The cutter 122 cuts the film F from the approaching roller 13 to the guide roller 113A in a state where the second cutting, reeling and changing device 12B is arranged at the first position.

The film F on the downstream side of the cutting position in the traveling direction MD is wound on the core W2. The film F on the upstream side of the cutting position in the traveling direction MD is wound on the core W1. Thereby, the winding of the film F to the core W2 is completed, and the film F from the approaching roller 13 is wound on the new core W1.

(3) Approaching the roller As shown in FIG. 6, when the film F is wound up on the core W1, the approaching roller 13 is arranged so as to be away from the film web R1. Thereby, at the contact point P1 between the film F and the film roll R1 from the approaching roller 13 to the film roll R1, the film F from the approaching roll 13 to the film roll R1 and the film F wound around the film roll R1 can be the most A gap G is formed between the outer thin films F (hereinafter referred to as between the thin films F). Air can be drawn between the films F through the gap G. Thereby, winding tightness can be suppressed. The approaching roller 13 is in contact with the film F conveyed to the film roll R1. Thereby, the approach roller 13 adjusts the tension|tensile_strength of the film F between the film roll R1 and the approach roller 13, and adjusts the amount of the air entrapped between the films F. As shown in FIG.

In addition, the same applies when the film F is wound around the core W2 (see FIG. 8 ).

(4) The first contact roller The first contact roller 14A can move between a contact position (see FIG. 6 ) and a distance position (see FIG. 5 ) with respect to the film web R1 of the core W1 .

As shown in FIG. 3 , in a state where the turntable 11 is located at the first winding position and the film F is wound on the core W2, the first contact roller 14A is arranged at the spaced position. In a state where the first contact roller 14A is arranged at the spaced position, the first contact roller 14A is in a state away from the winding core W1. In addition, at this time, the 1st cutting, splicing and reel changing device 12A and the second cutting, splicing and reel changing device 12B are respectively arranged at the second positions.

Next, as shown in FIG. 4 , the first cutting, reeling and changing device 12A and the second cutting and reeling device 12B each cut the film F to be directed from the approaching roller 13 to the guide roller 113A, and simultaneously the film F from the approaching roller 13 to the guide roller 113A is cut off. The film F roll is attached to the new core W1. At this time, the first contact roller 14A is arranged at the spaced position in a state in which the first cutting and reeling device 12A and the second cutting and reeling device 12B are arranged at the first positions, respectively.

Next, as shown in FIGS. 5 and 6 , when the first cutting and reel changing device 12A is moved from the first position to the second position, and the second cutting and reel changing device 12B is moved from the first position to the second position, While the film roll R1 is rotating, the first contact roller 14A moves from the separation position to the contact position. Thereby, it is possible to prevent the interference between the first cutting, reeling and changing device 12A and the second cutting and reeling device 12B and the first contact roller 14A.

When the first contact roller 14A moves from the separation position to the contact position, before being arranged at the contact position, the first contact roller 14A starts to rotate after receiving power from a drive source (not shown) while being away from the film web R1.

Thereby, when the 1st contact roller 14A and the film web R1 contact, the peripheral speed difference of the 1st contact roller 14A and the film web R1 can be reduced. As a result, damage to the film F due to friction with the first contact roller 14A can be suppressed.

As described above, the winding device 7 of the present invention can suppress damage to the film F, and is therefore suitable for use in optical films such as easy-bonding films for polarizing plates of image display devices.

Furthermore, as shown in FIG. 6 , when the first contact roller 14A is arranged at the contact position in a state in which the first cutting roll changing device 12A and the second cutting roll changing device 12B are arranged at the second positions, the first The contact roller 14A is brought into contact with the film web R1.

The first contact roller 14A is in contact with the film web R1 on the downstream side of the contact point P1 in the rotational direction of the film web R1. The contact point P2 of the 1st contact roller 14A and the film web R1 is in the state away from the contact point P1 in the rotation direction of the film web R1.

The rotation angle θ from the contact point P1 to the contact point P2 in the rotation direction of the film web R1 is, for example, 30° or more, and preferably 45° or more. When the rotation angle θ is equal to or larger than the above-mentioned lower limit value, air can be surely introduced between the films F at the contact point P1.

As long as the first contact roller 14A can be arranged, the upper limit of the rotation angle θ is not limited. The rotation angle θ is, for example, 270° or less, preferably 180° or less, and preferably 90° or less.

The first contact roller 14A presses the film roll R1 with a constant pressing force from the start to the end of the winding of the film roll R1. The 1st contact roller 14A extrudes a part of the air which entered between the films F from between the films F by pressing the film roll R1. Thereby, the amount of air contained between the films F is adjusted to be constant in accordance with the pressing force of the first contact roller 14A.

While the film web R1 is rotating and the first contact roller 14A is in contact with the film web R1, the peripheral speed of the first contact roller 14A is the same as the peripheral speed of the film web R1. Thereby, damage to the film F due to friction with the first contact roller 14A can be further suppressed.

Specifically, as shown in FIG. 7 , the first contact roller 14A is an orientation roller. The first contact roller 14A includes a contact roller body 141, a shaft 142, and two bearings 143A and 143B.

The contact roller body 141 extends in the width direction TD. The contact roller body 141 has a cylindrical shape. When the first contact roller 14A is located at the contact position, the contact roller body 141 is brought into contact with the film roll R1.

The contact roller body 141 is made of metal such as iron, stainless steel, and aluminum, for example, carbon, for example. The contact roller body 141 may also be subjected to surface treatment such as hard chrome plating. In addition, the surface contacting the roller body 141 can also be covered by a covering layer made of elastic materials such as rubber. The cover layer may also have a plurality of layers. The cover layer may also have: a first layer, which is in contact with the film roll R; and a second layer, which is disposed between the first layer and the contact roller body 141 and is composed of a softer material than the first layer .

The contact roller body 141 is preferably composed of aluminum, more preferably carbon. If the contact roller body 141 is made of aluminum or carbon, the weight of the contact roller body 141 can be reduced. In this way, the rotational resistance and rotational inertia of the contact roller body 141 can be reduced, so that the peripheral speed of the contact roller body 141 and the circumference of the film web R1 can be adjusted when the contact roller body 141 is in contact with the film web R1. same speed. Thereby, even if the peripheral speed of the film R1 changes, the film F can be prevented from being damaged by friction with the first contact roller 14A.

In addition, the surface contacting the roller body 141 may also have grooves. The surface contacting the roller body 141 may also have fine concave portions such as satin grains. When the surface of the contact roller body 141 has grooves or fine recesses, the air entering between the contact roller body 141 and the film web member R1 can be discharged from the grooves or recesses, and the contact roller body 141 to the film web member R1 can be suppressed. slip. Thereby, damage to the film F due to friction with the first contact roller 14A can be further suppressed.

The shaft 142 is disposed inside the contact roller body 141 in the diameter direction of the contact roller body 141 . The shaft 142 extends in the width direction TD. The shaft 142 is made of metal such as iron and stainless steel, for example. The shaft 142 receives power from a drive source not shown.

The bearing 143A is disposed at an end portion in the width direction of the contact roller body 141 . The bearing 143A is disposed between the contact roller body 141 and the shaft 142 in the diameter direction of the contact roller body 141 . The bearing 143A supports the shaft 142 in a rotatable manner.

The bearing 143B is disposed at the other end portion in the width direction of the contact roller body 141 . The description of the bearing 143B is the same as that of the bearing 143A. Therefore, the description of the bearing 143B is omitted.

The bearing 143A and the bearing 143B support the shaft 142 in a rotatable manner, so that the shaft 142 can be rotated by the contact roller body 141 .

When the contact roller body 141 is in a state away from the film web R1 , the bearing 143A, the bearing 143B and the contact roller body 141 rotate together with the shaft 142 . On the other hand, when the contact roller body 141 is in contact with the film roll R1, since the contact roller body 141 can rotate to the shaft 142, the contact roller body 141 has nothing to do with the rotation of the shaft 142, but follows the film roll Material R1 rotates. Thereby, the peripheral speed of the 1st contact roller 14A and the peripheral speed of the film web R1 can be made the same in the state where the 1st contact roller 14A is in contact with the film web R1.

Further, as shown in FIG. 8 , the first contact roller 14A rotates from the first winding position to the second winding position on the turntable 11, and moves from the contact position to the second winding position after the winding of the film F on the core W1 is completed. Distant location.

(5) The second contact roller As shown in FIGS. 5 and 6 , the second contact roller 14B can move between a contact position (see FIG. 5 ) and a distance position (see FIG. 6 ) with respect to the film roll R2 of the core W2 .

The description of the second contact roller 14B is the same as the description of the first contact roller 14A. Therefore, the description of the 2nd contact roller 14B is abbreviate|omitted.

3. Variations (1) The winding device 7 may not be a rotary table.

(2) The first contact roller 14A and the second contact roller 14B may not be directional rollers.

(3) The use of the winding device 7 is not limited to extrusion. For example, the base material S may be released from the coil of the base material S, the released base material S may be stretched, and then the coiling device 7 may be used to wind it up.

(4) The manufacturing system 1 of the film roll R may not include the coating device 3 .

(5) The production system 1 of the film roll R may not include the first stretching device 4A. The base material S to which the coating liquid is applied may be extended in the traveling direction MD and the width direction TD by the second extending device 4B (biaxial simultaneous extension). The manufacturing system 1 of the film roll material R may not extend the base material S. That is, the manufacturing system 1 of the film roll R may not include the 1st stretching apparatus 4A and the 2nd stretching apparatus 4B. In addition, although the above-mentioned invention provides the embodiment as an example of this invention, it is only an illustration, and should not be construed as a limitation. It will be apparent to those skilled in the art that modifications of the present invention are included in the scope of the patent application described later. industrial availability The winding device, the manufacturing system of the film roll, and the manufacturing method of the film roll of the present invention are used for the manufacture of films such as easy-to-bond films.

1: Film manufacturing system 2: Extrusion forming device 3: Coating device 4A: 1st extension device 4B: 2nd extension device 5: Slitting processing device 6: Knurling processing device 7: Coiling device 11: Turntable 12A: The first cutting and reel changing device 12B: The second cutting and reel changing device 13: Approaching the wheel 14A: 1st Contact Roller 14B: 2nd contact roller 111: 1st frame 112: 2nd frame 113A, 113B: Guide rollers 121: Cutting and changing rolls 122: Cutter 141: Contact roller body 142: Shaft 143A, 143B: Bearings A: Shaft C: film F: film G: Gap S: Substrate S1: The first side of the substrate S2: The second side of the substrate P1, P2: Contacts R, R1, R2: film roll W, W1, W2: winding core θ: rotation angle

FIG. 1 is a cross-sectional view of a film produced by a film production system as an embodiment of the present invention. FIG. 2 is a schematic configuration diagram of a thin film manufacturing system. FIG. 3 is an explanatory diagram for explaining the winding device shown in FIG. 2 , which shows that in a state where the film is wound on the core W2, the turntable is taken from the second winding for winding the film on the core W2. The position is rotated to the state in which the film is wound on the first winding position of the core W1. FIG. 4 is a continuation of FIG. 3 , and shows the state in which the first cutting, splicing and reel changing device and the second cutting, splicing and reeling device have approached the core W1 . FIG. 5 is a continuation of FIG. 4 , and shows the state after the film is cut by the second cutting, reel-changing device. FIG. 6 is a continuation of FIG. 5 , and shows the state in which the first cutting and reeling device and the second cutting and reeling device are far away from the core W1 , and the first contact roller is in contact with the film web. FIG. 7 is an explanatory diagram for explaining the structure of the contact roller. FIG. 8 shows a state in which the turntable is located at the second winding position and the film is wound on the core W2.

7: Coiling device

11: Turntable

12A: The first cutting and reel changing device

12B: The second cutting and reel changing device

13: Approaching the wheel

14B: 2nd contact roller

111: 1st frame

112: 2nd frame

113A, 113B: Guide rollers

121: Cutting and changing rolls

122: Cutter

A: Shaft

F: film

G: Gap

P1, P2: Contacts

R1, R2: film roll

W1, W2: roll core

θ: rotation angle

Claims (7)

A coiling device, characterized in that: It has: an access roller, which is disposed away from the film roll formed by winding the film on the core, and is in contact with the film conveyed toward the film roll; and a contact roller, which can move between a contact position in contact with the film roll and a separation position away from the film roll, and can receive power to rotate while being away from the film roll; In a state where the film web is rotating, when the contact roller moves from the separation position to the contact position, the contact roller starts to rotate before being arranged at the contact position. The winding device according to claim 1, wherein the film is an easily adhesive film used for a polarizing plate of an image display device. The take-up device according to claim 1 or 2, wherein when the film web is rotating and the contact roller is in contact with the film web, the peripheral speed of the contact roller is the same as the peripheral speed of the film web. The reeling device of claim 3, wherein the aforementioned contact rollers are directed toward the rollers. The coiling device according to any one of claims 1 to 4, further comprising: a turntable, which supports the aforementioned winding core; and a cutting, splicing and reel changing device, which can move between a first position close to the winding core and a second position farther away from the winding core than the first position; When the cutting, splicing and changing device is arranged at the first position, the contact roller is arranged at the separation position; When the cutting, splicing and changing device moves from the first position to the second position, the contact roller moves from the distance position to the contact position. A production system for a film roll, characterized by being equipped with the winding device according to any one of claims 1 to 5. A method for manufacturing a film roll, which is characterized by comprising a winding step, wherein the film is wound on the core by using the winding device according to any one of claims 1 to 5.

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