Circular knife mold for bare cutting process

Abstract

The utility model relates to a circular knife mould for a bare cutting process, which comprises a circular knife mould body, a first knife point and a second knife point are formed on the circular knife mould body, the first knife point is encircled on the circular knife mould body to form a rubberizing corresponding area corresponding to an optical release film, and the second knife point is encircled on the circular knife mould body to form a rubberizing corresponding area corresponding to the optical release film. The second cutter point is arranged on the circular cutter die body in a surrounding mode to form a non-rubberizing corresponding area, the circular cutter die body extends on the outer side of the second cutter point to form an anti-skid area, and a plurality of anti-skid cutter lines are arranged on the anti-skid area of the circular cutter die body in a protruding mode. The anti-skid cutter lines can be used for fixing the material belt in the bare cutting process, the problem that the product size is poor due to material pulling of the material belt is solved, the problem that the material belt is prone to sliding in the bare cutting process can be solved, and then the product size precision can be improved. And moreover, by adopting the circular knife mold provided with the auxiliary knife lines, the condition of cushioning knife foam is not needed, the knife lines on the two sides replace foam strips, the machine adjusting time is shortened, and the process is relatively simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to die cutting technical field especially relates to a naked cutting process of optical release film of round knife die. BACKGROUND

[0002] Optical release film, also called OCA (Optically Clear Adhesive) release film, is coated on the optical grade PET base film in a thousand level clean workshop environment with a special release agent formula. In the die cutting product, OCA release film and some special materials need to use naked cutting process. Since the material belt glue surface is exposed on the surface during naked cutting, the knife die cannot be padded with knife foam, and only the knife edge contacts the whole material belt, the contact points are very few, which leads to the material belt easy to slide in the production process, thereby affecting the product size accuracy and the accuracy of the matching of the die cutting.

[0003] As shown in Figure 1 and Figure 2 , it is a structure schematic view of a round knife die 10 in a traditional round knife naked cutting process, Figure 1 , it is a schematic view of the material belt 20 of the optical release film in the round knife naked cutting process, which is conveyed under the driving of the steel roller 30, and then the knife edge 11a of the round knife die 10 contacts the material belt to perform naked cutting, Figure 2 , it is a die cutting knife edge schematic view of the round knife die 10, wherein the round knife die has a glue-pasting corresponding area 11 and a non-glue-pasting corresponding area 12 corresponding to the optical release film, the first knife edge 11a of the round knife die 10 is used to die cut the double-sided adhesive tape profile of the optical release film in the glue-pasting corresponding area 11, and the second knife edge 12a is used to die cut the black line frame after the double-sided adhesive tape of the optical release film is pasted on the release film. The knife edge (including the first knife edge 11a and the second knife edge 12a) of the round knife die 10 in this process is in point-to-point contact with the material belt 21. In the case of no knife foam padding, the contact points between the die and the material belt are few, and the material belt is easy to slide, which leads to product size defects. Therefore, it is necessary to pad the foam on the upper and lower areas of the product optical release film. The foam has very good elasticity, and the pressure of the two ends of the die cannot be perfectly controlled when adjusting the knife pressure, which leads to the material belt easy to swing, thereby affecting the product size accuracy and the accuracy of the matching of the die cutting. If the two ends of the die are not padded with foam, the contact points between the die and the material belt are very few, which leads to the material belt easy to slide in the production process, thereby affecting the product size accuracy and the accuracy of the matching of the die cutting. When the foam is used, the use mode of the padded foam is as follows: 2.0T green high-elasticity foam, hardness 45°, no foam padding in the product area, foam padding on the upper and lower sides to compress the material belt. When the foam is used, the machine adjustment time is relatively long, the process is relatively complex, and the production efficiency is affected. UTILITY MODEL CONTENTS

[0004] Therefore, it is necessary to provide a round knife die for naked cutting process, which can improve the problem of the material belt easy to slide in the naked cutting process, can improve the product size accuracy, and the process is relatively simple.

[0005] The present application provides a naked cutting process round knife mold, comprising a round knife mold body, the round knife mold body is formed with a first blade and a second blade, wherein the first blade is formed on the round knife mold body to form a corresponding area of the optical release film, the second blade is formed on the round knife mold body to form a non-adhesive corresponding area, the round knife mold body is further extended to form a non-slip area outside the second blade, and the round knife mold body is formed with a plurality of anti-skid knife lines on the non-slip area.

[0006] In one embodiment, a plurality of anti-skid knife lines are arranged at intervals.

[0007] In one embodiment, the interval direction of the plurality of anti-skid knife lines is in the direction of the optical release film tape.

[0008] In one embodiment, each anti-skid knife line is arranged obliquely relative to the direction of the tape.

[0009] In one embodiment, the anti-skid knife line is a straight convex strip.

[0010] In one embodiment, the length of the anti-skid knife line is 10-15mm.

[0011] In one embodiment, the inclination angle of the anti-skid knife line is 60-70 degrees.

[0012] In one embodiment, the height of the anti-skid knife line is consistent with the height of the first blade.

[0013] In one embodiment, the first blade is a single blade, and the blade angle is 30° on the outside and 0° on the inside.

[0014] In one embodiment, the second blade is a single blade, and the blade angle is 30° on the outside and 0° on the inside.

[0015] The circular knife die of the naked cutting process provided by the application has an anti-skid area formed outside the second knife edge of the circular knife die body, and a plurality of anti-skid knife lines are formed on the anti-skid area of the circular knife die body, so that the contact points between the knife die and the material belt are increased, the material belt is prevented from swinging, and the material belt can be fixed in the naked cutting process without considering other factors, the problem of product size defect caused by material pulling of the material belt is avoided, the problem of easy sliding of the material belt in the naked cutting process is improved, and the product size precision is improved. Moreover, the circular knife die provided by the application has an auxiliary knife line, no cushion knife foam is needed, the foam strips on both sides are replaced by the knife lines, the machine adjusting time is reduced, and the process is relatively simple. The stability of material belt feeding is improved by adjusting the design of the knife die and using the anti-skid auxiliary knife line, so that the production efficiency is improved, the production cost is reduced, the size defect is reduced, and the production yield and efficiency are improved.

[0016] The circular knife die has the following advantages: (1) the contact points between the knife die and the material belt are increased to prevent material pulling; (2) the foam strips on both sides are replaced by the knife lines to reduce the machine adjusting time; (3) the production efficiency and product yield are improved, and the production cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of a prior art circular knife die for naked cutting of a material belt.

[0018] Figure 2 It is a structure schematic view of a prior art circular knife die.

[0019] Figure 3 It is a structure schematic view of a prior art circular knife die. DETAILED DESCRIPTION

[0020] For the convenience of understanding the present application, in order to make the above-mentioned purpose, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below. In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. The preferred embodiments of the present application are shown in the accompanying drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. The present application can be implemented in many different ways from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one feature. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art of the present application. The terms used herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0021] Please refer to Figure 3 The present application provides a naked cutting process round knife mold 10, including a round knife mold body 10a, the first knife edge 11a and the second knife edge 12a are formed on the round knife mold body 10a, wherein the first knife edge 11a is formed on the round knife mold body 10a to form a corresponding adhesive area 11 corresponding to the optical release film, the second knife edge 12a is formed on the round knife mold body 10a to form an adhesive-free corresponding area 12, the round knife mold body 10a is further extended to form a non-slip area 13 outside the second knife edge 12a, and a plurality of non-slip knife lines 13a are formed on the non-slip area 13 of the round knife mold body. In the naked cutting process, the plurality of non-slip knife lines can be used to fix the material belt, avoid the problem of material belt pulling to cause product size defect, improve the problem of easy sliding of the material belt in the naked cutting process, and further improve the product size precision. Moreover, the round knife mold provided by the present application is provided with auxiliary knife lines, without the need for cushion knife foam, and the two side knife lines replace the foam strip, reducing the machine adjustment time and the process is relatively simple. The round knife mold of the present application has the following advantages: (1) increasing the contact points between the knife mold and the material belt to prevent pulling; (2) replacing the foam strip with two side knife lines to reduce the machine adjustment time; (3) improving production efficiency and product yield, and reducing production cost.

[0022] In the present application, the anti-slip knife line is formed by a whole row of short knife lines, the die cutting height is consistent with the product knife line height, and it is just cut to the material belt material, increases the contact point of the knife die and the material belt, prevents the material belt from swinging, and does not need to consider other factors. For example, a plurality of said anti-slip knife lines 13a are arranged at intervals, so that the placement of the material to the swing effect can be further improved, for example, please refer to Figure 3 And in combination with Figure 1 , the interval direction of a plurality of said anti-slip knife lines 13a is located in the running direction of the optical release film material belt 30. For example, each said anti-slip knife line 13a is arranged obliquely relative to said running direction. In this way, the anti-slip effect can be further improved, and the product naked cutting quality and naked cutting precision can be ensured. For example, said anti-slip knife line 13a is a straight convex strip. For example, the length of said anti-slip knife line is 10-15mm. For example, the inclination angle of said anti-slip knife line is 60-70 degrees. For example, the height of said anti-slip knife line is consistent with the height of said first knife edge. In this way, the anti-slip effect is relatively good.

[0023] In an embodiment, said first knife edge is a single knife edge, the blade angle is 30° on the outside and 0° on the inside. For example, said second knife edge is a single knife edge, the blade angle is 30° on the outside and 0° on the inside. In this way, the naked cutting effect is good.

[0024] The circular knife die using the naked cutting process of the present application innovatively designs a substrate-free foam + double-sided adhesive die, and in use, 1. The outer shape of the double-sided adhesive in the adhesive area is first cut by the first knife edge 11a, and then the black frame is cut by the second knife edge 12a after the release film is attached. 2. Knife die design, single blade (blade angle 30° on the outside and 0° on the inside). 3. The use of cushion knife foam: no cushion knife foam, rely on the red anti-slip knife line at both ends to fix the material belt. The circular knife die of the present application has the following advantages: (1) increase the contact points between the knife die and the material belt, prevent the material from being pulled; (2) replace the foam strip with the knife lines on both sides, reduce the machine adjustment time; (3) improve production efficiency and product yield, and reduce production cost.

[0025] The circular knife die of the naked cutting process provided by the present application further extends the anti-slip area outside the second knife edge of the circular knife die body, and a plurality of anti-slip knife lines are protrudingly formed on the anti-slip area of the circular knife die body. In the naked cutting process, a plurality of anti-slip knife lines can be used to fix the material belt, avoid the problem that the material belt is pulled to cause product size defects, improve the problem that the material belt easily slips in the naked cutting process, and further improve the product size precision. Moreover, the circular knife die provided by the present application is provided with auxiliary knife lines, without cushion knife foam, the foam strip is replaced by the knife lines on both sides, the machine adjustment time is reduced, and the process is relatively simple.

[0026] The application improves the stability of material belt feeding by adjusting the design of the cutter die and using anti-skid auxiliary cutter lines, thereby improving production efficiency, reducing production cost, improving the yield and efficiency of production.

[0027] The technical features of the above-described embodiments can be combined in any manner, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description. It should be noted that "in an embodiment of the application", "for example", "for example" and the like in the application are intended to illustrate the application, not to limit the application.

[0028] The above-described embodiments only express several implementation manners of the application, the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for those skilled in the art, without departing from the concept of the application, a number of modifications and improvements can be made, which are all within the protection scope of the application. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A round knife die for a kiss cutting process, comprising a round knife die body formed with a first knife edge and a second knife edge, wherein the first knife edge is formed around the round knife die body to form a die attach corresponding area corresponding to an optical release film, and the second knife edge is formed around the round knife die body to form a die attach non-corresponding area, characterized in that, The circular knife mold body further extends to form an anti-skid area outside the second knife edge, and the circular knife mold body protrudes to form a plurality of anti-skid knife lines in the anti-skid area.

2. The round knife die of claim 1, wherein, The plurality of anti-skid knife lines are arranged at intervals.

3. The circular knife die of claim 2, wherein, The interval direction of the plurality of anti-skid knife lines is in the running direction of the optical release film material belt.

4. The circular knife die of claim 3, wherein, Each anti-skid knife line is arranged obliquely relative to the running direction.

5. The circular knife die of claim 4, wherein, The anti-skid knife line is a straight protruding line.

6. The circular knife die of claim 5, wherein, The length of the anti-skid knife line is 10-15 mm.

7. The circular knife die of claim 6, wherein, The oblique angle of the anti-skid knife line is 60-70 degrees.

8. The round knife die of claim 1, wherein, The height of the anti-skid knife line is consistent with the height of the first knife edge.

9. The round knife die of claim 1, wherein, The first knife edge is a single knife edge with an outer blade angle of 30° and an inner blade angle of 0°.

10. The rotary die of claim 1, wherein, The second knife edge is a single knife edge with an outer blade angle of 30° and an inner blade angle of 0°.

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