TW201946750A - Cutting tool, cutting apparatus and cutting method using the same - Google Patents

Abstract

A cutting tool, a cutting apparatus and a cutting method using the same are provided. The cutting apparatus is used for cutting an optical film. The cutting apparatus includes a cutting tool and a container. The cutting tool is used for cutting the optical film. The container is used for accommodate a surface treatment agent, and the surface treatment agent is used for cleaning the cutting tool.

Description

Cutting tool, cutting equipment and cutting method using same

The present invention relates to a cutting tool, a cutting device and a cutting method using the same, and more particularly to a cutting tool, a cutting device and a cutting method using the same.

When cutting the optical roll film, the components of the optical roll film will adhere to the cutting blade. These sticking components will remain on the cutting surface of the optical roll film during the next cutting, and cause pollution to the cutting surface. Therefore, there is an urgent need to propose a technology capable of improving the adhesion of the components of the optical roll film to the cutting blade.

Therefore, the present invention provides a cutting tool, a cutting device, and a cutting method using the cutting tool, which can improve the conventional problems.

An embodiment of the present invention provides a cutting tool. The cutting blade is used for cutting an optical roll film and includes a blade body and a roughened structure. The roughened structure is formed on the blade surface, and the roughened structure includes a plurality of concave portions.

An embodiment of the present invention provides a cutting device. The cutting device is used for cutting an optical roll film. The cutting equipment includes a cutting knife and a container. The cutting tool is used to cut the optical roll film. The container is used for containing a surface treatment liquid, and the surface treatment liquid is used for cleaning and / or coating the cutting knife.

Another embodiment of the present invention provides a cutting method. The cutting method includes the following steps. The aforementioned cutting equipment is provided; the cutting blade of the cutting equipment cuts the optical roll film; and the surface treatment liquid of the cutting equipment cleans and / or coats the cutting blade.

In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are described in detail below in conjunction with the accompanying drawings:

Please refer to FIGS. 1 to 3, which are schematic diagrams of a cutting device 100 according to an embodiment of the present invention, and FIG. 3 illustrates a cutting tool 130 of FIG. 1 cutting the optical roll film 10. schematic diagram.

As shown in FIG. 1, the cutting device 100 is used to cut the optical roll film 10. The cutting device 100 includes at least one transfer wheel 110, a bearing wheel 120, at least one cutting tool 130, at least one container 140, and a surface treatment element 150. The plurality of transfer wheels 110 are used to transfer the optical roll film 10. The optical roll film 10 can be clamped and transferred between the two transfer wheels 110.

Although not shown in the drawings, the cutting device 100 may further include a control module, which can control the operation of the transmission wheel 110, the bearing wheel 120, the cutting tool 130, and the surface treatment element 150. For example, the control module may include a controller and a driver, where the controller is a circuit made of a semiconductor process, and the driver is a motor, for example. The motor is electrically connected to the transmission wheel 110, the bearing wheel 120, the cutting tool 130, and the surface treatment element 150, so that the controller can control the motor to drive the elements to rotate, for example, to control the rotation speed of the elements.

The transfer wheel 110 can transfer the optical roll film 10 between the cutting blade 130 and the bearing wheel 120. The bearing wheel 120 is disposed opposite to the cutting blade 130. The cutting blade 130 is used for cutting the optical roll film 10. The bearing wheel 120 can be used as a bearing of the optical roll film 10, so that the cutting blade 130 can cut the optical roll film 10.

As shown in FIGS. 1 and 2, the container 140 is used for containing the surface treatment liquid C1. The surface treatment liquid C1 can clean and / or coat the cutting blade 130 to remove impurities on the cutting blade 130. In addition, the surface treatment liquid C1 can also be applied to the surface 130s of the cutting blade 130, thereby preventing or reducing these impurities from remaining on the cutting surface of the optical roll film 10 or the surface of the cutting blade 130 during the next cutting. The embodiment of the present invention is not limited to that the surface treatment liquid C1 must have both cleaning and coating (or coating) functions. In another embodiment, the surface treatment liquid C1 may have one of cleaning and coating functions.

In an embodiment, as shown in FIG. 1, the optical roll film 10 includes a first protective layer 11, a first cover layer 12, a polarizing layer 13, a second cover layer 14, an adhesive layer 15, and a second protective layer 16. . The polarizing layer 13 is formed between the first cover layer 12 and the second cover layer 14. The first protective layer 11 is disposed on the first cover layer 12. The adhesive layer 15 is disposed between the second cover layer 14 and the second protective layer 16 for subsequent adhesion to a liquid crystal panel (not shown). In one embodiment, the optical roll film 10 according to the embodiment of the present invention may be a single-layer film or a multi-layer film. For example, the optical roll film 10 may include at least one of the aforementioned several layer structures.

The material of the first cover layer 12 and the second cover layer 14 may be selected from the group consisting of triacetate cellulose (TAC), polymethylmethacrylate (PMMA), and polyethylene terephthalate ( A group consisting of Polyethylene Terephthalate (PET), Polypropylene (PP), Cyclo Olefin Polymer (COP), Polycarbonate (PC), or any combination thereof.

The polarizing layer 13 may be a polyvinyl alcohol (PVA) film that adsorbs and aligns dichroic pigments or is formed by mixing liquid crystal material with absorbing dye molecules. Polyvinyl alcohol can be formed by saponifying polyvinyl acetate. In some embodiments, the polyvinyl acetate may be a single polymer of vinyl acetate or a copolymer of vinyl acetate and other monomers. The other monomers may be unsaturated carboxylic acids, olefins, unsaturated sulfonic acids, vinyl ethers, and the like. In other embodiments, the polyvinyl alcohol can be modified polyvinyl alcohol, for example, aldehyde-modified polyvinyl formaldehyde, polyvinyl acetaldehyde, or polyvinyl butyral, and the like.

The first protective layer 11 can be made of polyester resin, olefin resin, cellulose acetate resin, polycarbonate resin, acrylic resin, polyethylene terephthalate (PET), polyethylene (PE) or polyethylene. Polypropylene (PP), cycloolefin resin, or a combination thereof, wherein the polyester resin is, for example, polyethylene terephthalate or polyethylene naphthalate, and the acrylic resin is, for example, polymethyl methacrylate ( PMMA).

The adhesive layer 15 may be made of a material such as a (meth) acrylic copolymer, such as a material that may include, but is not limited to, a functional group, such as methyl (meth) acrylate, ethyl (meth) acrylate, (formaldehyde) Materials) such as butyl acrylate and 2-ethylhexyl (meth) acrylate.

The second protective layer 16 is, for example, a release layer, which may be, for example, a polyethylene terephthalate film coated with a release agent on the surface, wherein the release agent is, for example, but not limited to, a silicone resin. In this way, the second protective layer 16 is easily peeled off from the adhesive layer 15 to expose the adhesive layer 15, so that the cut optical roll film 10 is adhered to the liquid crystal panel (not shown) through the adhesive layer 15.

In one embodiment, the optical roll film 10 may optionally include a non-light-condensing component, such as a Cyclo Olefin Polymer (COP). Such a non-condensing component may cause the laser light to be out of focus, and it may be impossible to cut the optical roll film 10 at a time. In contrast, in the embodiment of the present invention, as shown in FIG. 3, the cutting roll 130 can cut the optical roll film 10 at a time without being affected by the material of the optical roll film 10. In another embodiment, before the cutting blade 130 cuts the optical roll film 10, a part of the thickness of the optical roll film 10 may be cut by laser light, and then the optical roll film 10 is cut by the cutting blade 130. In this embodiment, a laser generator that emits laser light may be disposed upstream of the cutting tool 130, such as at a dotted line A1 in FIG. 1. In addition, the number of laser generators may be equal to the number of cutting tools 130.

When the cutting blade 130 cuts the optical roll film 10, a component 10 ′ (for example, a component of the adhesive layer 15) of the layer structure of the optical roll film 10 may adhere to the cutting blade 130, resulting in subsequent cutting When the film 10 is rolled, the component 10 ′ adhered to the cutting blade 130 remains on the cutting surface 10 s (the cutting surface 10 s is shown in FIG. 3) of the optical roll film 10.

In this embodiment, the surface treatment liquid C1 includes a release agent. When the cutting blade 130 contacts the surface treatment liquid C1, the release agent is coated and adhered to the cutting blade 130. The release agent can reduce the adhesion of the component 10 'to the cutting blade 130, thereby reducing the amount of the component 10' adhering to the cutting blade 130. In addition, the material of the surface treatment liquid C1 includes a siloxane polymer, such as Silicone, and / or the surface treatment liquid C1 may further include a fluorine-containing compound.

As shown in FIGS. 1 and 2, the surface treatment element 150 and the cutting blade 130 are in direct contact. When the cutting blade 130 rotates, the surface treatment element 150 can wipe the cutting blade 130 to forcibly remove (such as wipe) the component 10 'adhering to the cutting blade 130. The removed component 10 ′ is transferred to the surface treatment element 150, and the component 10 ′ transferred to the surface treatment element 150 is brought into the surface treatment liquid C1 in the container 140 through the rotation of the surface treatment element 150 to reduce the surface treatment element 150. Number of ingredients on '10'. In other words, through the rotation of the surface treatment element 150, a cleaning and / or coating effect on the surface treatment element 150 'can be produced. When the amount of the component 10 'dissolved in the surface treatment liquid C1 becomes more and more, the surface treatment liquid C1 can be replaced.

In another embodiment, the cutting device 100 further includes a filter module (not shown), which is connected to the container 140, and can output the surface treatment liquid C1 in the container 140 to a filter, which is filtered out by the filter. After the component 10 ′, the filtered (purified) surface treatment liquid C1 is returned to the container 140. In this way, the surface treatment liquid C1 in the container 140 does not need to be replaced, or the frequency of replacement of the surface treatment liquid C1 in the container 140 can be reduced.

In an embodiment, as shown in FIG. 1, the rotation direction D1 of the surface treatment element 150 and the rotation direction D2 of the cutting blade 130 are opposite to each other. For example, the rotation direction D1 of the surface treatment element 150 is counterclockwise, and the rotation direction D2 of the cutting blade 130 is clockwise. In another embodiment, the rotation direction D1 of the surface processing element 150 may be clockwise, and the rotation direction D2 of the cutting tool 130 may be counterclockwise. In this way, in the contact area T1 between the surface processing element 150 and the cutting tool 130, the tangential direction T11 of the surface processing element 150 is the same as the tangential direction T12 of the cutting tool 130, which can reduce the surface processing element 150 from excessively rubbing the cutting tool 130. Furthermore, the wear of the cutting tool 130 is reduced (compared to this, when the tangential direction T11 of the surface processing element 150 and the tangential direction T12 of the cutting tool 130 are reversed, the wear of the surface processing element 150 and the cutting tool 130 increases) .

In addition, the rotation speed of the surface treatment element 150 and the rotation speed of the cutting blade 130 are different. For example, the rotation speed of the surface treatment element 150 is slower than the rotation speed of the cutting blade 130. This speed difference can increase the relative movement of the surface treatment element 150 and the cutting blade 130 to remove the component 10 'attached to the cutting blade 130 . In one embodiment, the ratio of the rotation speed of the surface processing element 150 to the rotation speed of the cutting tool 130 is between 0.5 and 2. This ratio range is sufficient to remove the component 10 'attached to the cutting tool 130 without As for the excessive wear of the cutting blade 130 or the surface treatment element 150.

In addition, the slower the rotation speed of the surface treatment element 150 is, the worse the cleaning and / or coating effect of the surface treatment element 150 is; the faster the rotation speed of the surface treatment element 150 is, the surface treatment element 150 throws the surface treatment liquid C1 to The greater or greater the opportunity for the cutting tool 130.

As shown in FIG. 1, the surface treatment element 150 partially enters the surface treatment liquid C1, so that the surface treatment element 150 can adhere to the surface treatment liquid C1 when it is rotated, so that the surface treatment liquid C1 can be The cutting knife 130 is cleaned and / or coated frequently. In one embodiment, the surface treatment element 150 is, for example, a sponge, which can absorb the surface treatment liquid C1 and transmit the absorbed surface treatment liquid C1 to the cutting blade 130 through the capillary phenomenon, so that more surface treatment liquid C1 can be cleaned and cleaned. And / or coating the cutting tool 130. Under this design, the surface treatment element 150 can be selectively not rotated, and the surface treatment liquid C1 can be absorbed through the sponge to clean and / or coat the cutting blade 130. In another embodiment, the surface treatment element 150 may be made of other materials, such as rubber or plastic.

In addition, as shown in FIG. 2, since the surface treatment element 150 has flexibility and / or elasticity, the surface treatment element 150 and the cutting blade 130 are brought into close contact. In this way, the effect of the surface treatment element 150 on removing the component 10 'remaining on the cutting blade 130 can be enhanced.

As shown in FIG. 2, the cutting tool 130 contacts the surface treatment element 150 at a cleaning length L1, and the surface treatment element 150 enters the surface treatment liquid C1 at a depth L2, and the depth L2 is at least equal to the cleaning length L1, and passes through the container 140. The surface treatment element 150 in the surface treatment liquid C1 inside absorbs enough surface treatment liquid C1 to clean a part of the cleaning length L1 of the cutting blade 130. As shown in FIGS. 1 and 3, the cleaning length L1 is substantially equal to or larger than the cutting thickness L3, so that a portion of the cutting blade 130 (that is, a portion of the cleaning length L1) that has passed through the entire cutting surface 10s of the optical roll film 10 is cleaned. And / or coating, thereby reducing or even avoiding the number of components 10 'remaining on the cutting surface 10s.

In an embodiment, as shown in FIG. 1, the cutting position P1 between the cutting blade 130 and the optical roll film 10 is located above the container 140. In this way, all or most of the particles of the component 10 'generated by cutting can fall into the container 140 to prevent the particles of the component 10' from contaminating the environment of the cutting device 100. As shown in FIG. 2, the number of the containers 140 is equal to that of the cutting blade 130. In another embodiment, the number of the containers 140 may be one, and all the cutting knives 130 of the cutting device 100 may be located directly above the containers 140, and similar technical effects to the foregoing can be achieved.

A cutting method according to an embodiment of the present invention includes the following steps. First, the aforementioned cutting device 100 is provided. Then, the cutting blade 130 of the cutting apparatus 100 cuts the optical roll film 10. Then, the surface treatment liquid C1 of the cutting apparatus 100 cleans and / or coats the cutting blade 130.

Please refer to FIG. 4, which illustrates a cross-sectional view of a cutting tool 230 according to another embodiment of the present invention. The cutting blade 130 of the cutting device 100 of the foregoing embodiment may also be replaced by the cutting blade 230 of this embodiment.

The cutting blade 230 includes a blade body 231 and a roughening structure 232. The blade body 231 has a blade surface 231s, and the roughened structure 232 is formed on the blade surface 231s. The roughened structure 232 includes a plurality of recessed portions 232r.

The blade body 231 and the roughened structure 232 may be an integrally formed structure. In terms of the manufacturing method, for example, sandblasting, waterjet, laser, or other suitable techniques can be used to form the blade surface 231s of the blade body 231, and the range of the formed concave portion 232r constitutes the roughened structure 232. In terms of the size of the recess, the inner diameter W1 of the recessed portion 232r of the roughened structure 232 formed in terms of sandblasting is approximately between about 5 microns and about 80 microns, preferably between about 10 microns and about 50 microns. Between micrometers. However, the actual range of the inner diameter W1 of the recessed portion 232r may depend on the manufacturing process, and may also be less than about 5 microns, or greater than about 80 microns, which is not limited in the embodiment of the present invention.

As shown in FIG. 4, the roughened structure 232 of the embodiment of the present invention can change the contact mode between the cutter and the optical roll film 10 from surface contact to point contact, and can reduce the frictional resistance of the cutting blade 230 cutting the optical roll film 10. . In addition, as shown in FIG. 4, the surface treatment liquid C1 is attached to the roughened structure 232, for example, it is located in the recessed portion 232 r of the roughened structure 232. Therefore, the liquid lubricity between the cutter 230 and the optical roll film 10 can be increased, and more The frictional resistance of the cutting blade 230 for cutting the optical roll film 10 is reduced.

Please refer to FIG. 5, which illustrates a schematic view of a surface treatment liquid C1 attached to a cutting surface 10 s of an optical film 10 a according to an embodiment of the present invention.

The cutting blade 230 cuts the optical roll film 10 to cut out the optical film 10a. Since the plurality of recesses 232r of the cutting blade 230 contain the surface treatment liquid C1, the surface treatment liquid C1 can adhere to at least a part of the cutting surface 10s of the optical film 10a after cutting. Since the cutting blade 230 passes through the entire thickness of the optical film 10a, the cutting surface 10s includes the first protective layer 11, the first cover layer 12, the polarizing layer 13, the second cover layer 14, the adhesive layer 15, and the second protective layer. Cutaway of 16. The range in which the surface treatment liquid C1 adheres to the cut surface 10s of the optical film 10a depends on the range of the roughened structure 232 and / or the range in which the surface treatment liquid C1 adheres to the roughened structure 232.

In this embodiment, the surface treatment liquid C1 in FIGS. 4 and 5 is an antistatic liquid. The surface treatment liquid C1 of the cutting device 100 of FIG. 1 may be replaced with the antistatic liquid of this embodiment. The antistatic liquid includes, for example, a solvent and a surface treatment agent, wherein the solvent includes alcohol and water, and the surface treatment agent is, for example, an antistatic agent. In one embodiment, for a solvent such as 100% containing alcohol and water, the weight percentage of the antistatic agent is about 0.1% to about 5% of the solvent, and an excellent antistatic effect can be achieved. Taking the solvent as 100%, in one embodiment, the ratio of alcohol and water may be between 1: 1 to 3: 7, and a composition with 3: 7 has a better antistatic effect (compared with the ratio is 1: 1).

As shown in FIG. 5, since the antistatic liquid adheres to the cutting surface 10s of the optical film 10a, the electrostatic adsorption phenomenon can be avoided, thereby reducing or preventing impurities from adhering to the cutting surface 10s to keep the cutting surface 10s clean degree.

The optical film 10a can be attached to an optical product (not shown) to provide an optical function of the optical product. In the process of attaching the optical film 10a to the optical product, the second protective layer 16 needs to be removed from the optical film 10a to expose the adhesive layer 15, and then the adhesive layer 15 and the optical product are used. A light-transmitting member (not shown) is attached to the optical film 10a on the light-transmitting member. Although static electricity is generated on the adhesive surface 15s of the adhesive layer 15 during the tearing of the second protective layer 16 from the optical film 10a, the cut surface 10s has excellent cleanliness (less impurities), which causes electrostatic adsorption to The impurities on the adhesive surface 15s will be significantly reduced, which can avoid contaminating the adhesive surface 15s of the adhesive layer 15 and thereby enhance the bonding between the adhesive layer 15 and the optical product. In addition, the foregoing optical product is, for example, a touch panel, a display panel, a touch display panel, or any product that requires an optical film 10a, and the light transmitting member of the optical product is, for example, glass, a transparent plastic plate, or other suitable components.

In summary, although the present invention has been disclosed as above with the embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field to which the present invention pertains can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the scope of the attached patent application.

10‧‧‧ Optical roll film

10’‧‧‧ ingredients

10a‧‧‧Optical diaphragm

10s‧‧‧ cropped noodles

11‧‧‧first protective layer

12‧‧‧ the first cover

13‧‧‧polarizing layer

14‧‧‧second cover

15‧‧‧ Adhesive layer

15s‧‧‧Adhesive surface

16‧‧‧Second protective layer

100‧‧‧cutting equipment

110‧‧‧Transmission wheel

120‧‧‧bearing wheel

130, 230‧‧‧ cutting tools

130s‧‧‧ surface

140‧‧‧container

150‧‧‧surface treatment element

231‧‧‧Blade

232‧‧‧Roughened structure

231s‧‧‧Blade

232r‧‧‧Concave

A1‧‧‧ dotted line

C1‧‧‧ surface treatment fluid

D1, D2‧‧‧rotation direction

L1‧‧‧Clean length

L2‧‧‧ into depth

L3‧‧‧ cutting thickness

P1‧‧‧Cut

T1‧‧‧contact area

T11, T12‧‧‧tangent direction

W1‧‧‧Inner diameter

1 to 2 are schematic diagrams of a cutting device according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing the cutting blade of FIG. 1 cutting the optical roll film.

FIG. 4 is a cross-sectional view of a cutting tool according to another embodiment of the present invention.

FIG. 5 is a schematic view showing that a surface treatment liquid is attached to a cut surface of an optical film according to an embodiment of the present invention.

Claims (22)

A cutting tool for cutting an optical roll film and comprising: A blade body with a blade face; and A roughened structure is formed on the blade surface, and the roughened structure includes a plurality of concave portions. The cutting tool according to item 1 of the patent application scope, wherein the blade body and the roughened structure are an integrally formed structure. The cutting knives described in item 1 of the patent application scope further include: A surface treatment liquid is attached to the roughened structure. The cutting tool according to item 3 of the scope of the patent application, wherein the surface treatment liquid is an antistatic liquid. The cutting tool according to item 4 of the scope of patent application, wherein the antistatic liquid contains a solvent and an antistatic agent, the weight percentage of the antistatic agent accounts for 0.1% to 5% of the solvent, and / or the solvent contains alcohol And water, wherein the ratio of the alcohol to the water is from 1: 1 to 3: 7. The cutting tool according to item 1 of the scope of patent application, wherein the inner diameter of each of the recesses is between 5 microns and 80 microns. The cutting tool according to item 1 of the patent application scope, wherein the roughened structure is formed on the blade surface by sandblasting, waterjet or laser. A cutting device for cutting an optical roll film. The cutting device includes: A cutting blade for cutting the optical roll film; and A container is used for containing a surface treatment liquid, which is used for cleaning and / or coating the cutting blade. The cutting equipment described in item 8 of the patent application scope further includes: A surface treatment element is in contact with the cutting tool and the surface treatment element partially enters the surface treatment liquid, so that the surface treatment liquid passes through the surface treatment element to clean and / or coat the cutting blade. The cutting device according to item 8 of the scope of patent application, wherein the surface treatment liquid contains a release agent. The cutting device according to item 9 of the scope of patent application, wherein the rotation direction of the surface treatment element is opposite to the rotation direction of the cutting knife, or the rotation speed of the surface treatment element is in accordance with the rotation speed of the cutting knife. different. The cutting device according to item 9 of the scope of patent application, wherein the cutting tool contacts the surface treatment element with a clean length, and the surface treatment element enters the surface treatment liquid with an entry depth that is at least equal to The cleaning length. The cutting device according to item 8 of the scope of the patent application, wherein the surface treatment liquid is a siloxane polymer, and / or a fluorine-containing compound. The cutting device according to item 8 of the patent application scope, wherein the cutting tool includes the cutting tool according to any one of the patent application scope items 1 to 7. A cutting method, including: Provide the cutting equipment as described in item 8 of the scope of patent application; The cutting blade of the cutting equipment cuts the optical roll film; and The surface treatment liquid of the cutting equipment cleans and / or coats the cutting blade. The cutting method according to item 15 of the patent application scope, wherein the cutting device further includes: A surface treatment element is in contact with the cutting tool and the surface treatment element partially enters the surface treatment liquid, so that the surface treatment liquid passes through the surface treatment element to clean and / or coat the cutting blade. The cutting method described in item 16 of the scope of patent application, further includes: Control the rotation direction of the surface treatment element and the rotation direction of the cutting tool, make the rotation direction of the surface treatment element and the rotation direction of the cutting tool reverse, or control the rotation speed of the surface treatment element and the cutting direction The rotation speed of the cutting tool is such that the rotation speed of the surface treatment element is different from the rotation speed of the cutting tool. The cutting method according to item 16 of the scope of patent application, wherein the cutting tool contacts the surface treatment element with a clean length, and the surface treatment element enters the surface treatment liquid with an entry depth that is at least equal to The cleaning length. The cutting method according to item 15 of the scope of patent application, wherein the surface treatment liquid contains a release agent. The cutting method according to item 15 of the scope of patent application, wherein the surface treatment liquid is a siloxane polymer, and / or a fluorine-containing compound. The cutting method according to item 15 of the scope of patent application, wherein the surface treatment liquid is an antistatic liquid. The cutting method according to item 21 of the scope of patent application, wherein the antistatic liquid contains a solvent and an antistatic agent, the weight percentage of the antistatic agent accounts for 0.1% to 5% of the solvent, and / or the solvent contains alcohol And water, wherein the ratio of the alcohol to the water is from 1: 1 to 3: 7.