CN112388732A - Die cutting method convenient to detect - Google Patents
Die cutting method convenient to detect Download PDFInfo
- Publication number
- CN112388732A CN112388732A CN202011144634.6A CN202011144634A CN112388732A CN 112388732 A CN112388732 A CN 112388732A CN 202011144634 A CN202011144634 A CN 202011144634A CN 112388732 A CN112388732 A CN 112388732A
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- CN
- China
- Prior art keywords
- film
- die
- product
- composite film
- detection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/27—Means for performing other operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention relates to a die cutting detection process, which comprises the following steps: placing the OCA optical cement above the heavy release film, and laminating the OCA optical cement and the heavy release film together through a laminating machine to form a composite film; coating a layer of uniform degumming protective agent on the upper surface of the composite film; punching the composite film by using a punching die, punching the OCA optical adhesive layer into a proper shape, and simultaneously leaving a detection mark on the composite film by using a marking device; standing the composite membrane in the last step for 1-5 minutes; placing a light release film on the upper surface of the composite film, and laminating the light release film and the composite film through a laminating machine to form a finished film; stamping the finished film by using a forming die, and stamping and forming the product; detecting the processed product; the degumming protective agent is added in the film laminating process, so that the generation of bubbles is reduced, and the separation of a product and the adhesive tape is facilitated; the die cutting effect of the product is directly judged by observing whether the product has the detection mark or not, other equipment is not needed for measurement, and defective products can be directly found.
Description
Technical Field
The invention relates to the field of die cutting methods and mobile phone film processing, in particular to a die cutting method convenient to detect.
Background
The OCA (optical Clear adhesive) optical adhesive is one of raw materials of a touch screen, is a double-sided adhesive tape without a base material by making an optical acrylic pressure-sensitive adhesive into a non-base material and then respectively sticking a layer of optical release film on an upper bottom layer and a lower bottom layer to form the double-sided adhesive tape, has the advantages of high cleanliness, high light transmittance, low haze, high adhesion, no crystal point, no bubble, water resistance, high temperature resistance, ultraviolet resistance and the like, has uniform thickness and high flatness, is close to the refractive index of glass, PC and PMMA, and cannot generate yellowing, aging, fogging, separation from a stuck surface, bubble generation and other problems after long-time use.
The attaching process and the die cutting process are one of the most common processes in the manufacturing process of the touch screen, the phenomenon of bubbles is inevitably generated in the process of attaching the OCA optical adhesive to each base layer, and because the number of the problematic intermediate products is large, the intermediate products are not directly discarded, and the products with the bubbles are generally reworked at the present stage, so that time and labor are wasted; in the die cutting process, due to inaccurate alignment, the sizes of all layers of colloids are easy to deviate from errors, so that products are scrapped, and the quality of the same batch of products is influenced if the sizes of all layers of colloids are not found in time; lack of lubrication between a cutter and an adhesive tape in the die cutting process can cause difficulty in falling off of a product and the adhesive tape and reduce the yield, so that bubbles can be reduced, workers can visually and timely find out the deviation error of the overall dimension of the product, and the process for improving the separation of the product and the adhesive tape is lacking in the market at present
Disclosure of Invention
The invention provides a die cutting method convenient to detect in view of the defects disclosed in the background technology, which comprises a blanking die used for the method, wherein the blanking die comprises a die body and a marking device, and the die body is provided with a cutting tool with the same shape as the preset shape;
the method comprises the following steps:
(1) attaching OCA optical cement, placing the OCA optical cement above the heavy release film, and attaching the OCA optical cement and the heavy release film together through an attaching machine to form a composite film;
(2) coating a protective agent, namely coating a layer of uniform degumming protective agent on the upper surface of the composite film;
(3) blanking, namely blanking the composite film by using a blanking die, blanking a plate with the same shape as the preset shape on the OCA optical adhesive layer, and simultaneously leaving a detection mark on the composite film by using a marking device;
(4) standing, namely standing the composite membrane in the last step for 1-5 minutes;
(5) placing a light release film on the upper surface of the composite film, and laminating the light release film and the composite film through a laminating machine to form a finished film;
(6) stamping, namely stamping the finished film by using a forming die and stamping and forming the product;
(7) and detecting, namely detecting the processed product, and rapidly detecting whether the size of the processed product is qualified or not by judging whether the detection mark is positioned on the plate.
Preferably, the marking device can be a cutter, a pen tool or a high-energy laser.
Preferably, the marking device is arranged outside the mould, and the projection of the marking device on the composite film is outside the maximum dimension profile of the product.
Preferably, the shape of the detection mark matches with the corresponding edge of the product appearance.
Preferably, the detection operation can be judged by manual identification or optical detection means.
Preferably, the optical detection device takes an image of the product, and transmits the image back to the computer, and the image of the product is analyzed and judged through a program in the computer.
Preferably, the degumming protective agent is formed by mixing a release agent and a filler.
Compared with the prior art, the invention has the beneficial effects that: the degumming protective agent is added in the process of laminating the heavy release film, so that the generation of bubbles is reduced, the separation of a product and an adhesive tape is facilitated, and the occurrence of an adhesive overflow phenomenon is reduced; the die cutting effect of the product can be directly judged by observing whether the product has the detection mark or not, other equipment is not needed for measurement, the process problem can be found in time, and the reject ratio is reduced.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1, a die cutting method convenient for detection is characterized by comprising a blanking die used for the method, wherein the blanking die comprises a die body and a marking device, and the die body is provided with a cutting tool with the same preset shape;
the method comprises the following steps:
(1) attaching OCA optical cement, placing the OCA optical cement above the heavy release film, and attaching the OCA optical cement and the heavy release film together through an attaching machine to form a composite film;
(2) coating a protective agent, namely coating a layer of uniform degumming protective agent on the upper surface of the composite film;
(3) blanking, namely blanking the composite film by using a blanking die, blanking a plate with the same shape as the preset shape on the OCA optical adhesive layer, and simultaneously leaving a detection mark on the composite film by using a marking device;
in this embodiment, the projection of the marking device on the composite film is outside the maximum dimensional profile of the product;
(4) standing, namely standing the composite membrane in the last step for 1-5 minutes;
(5) placing a light release film on the upper surface of the composite film, and laminating the light release film and the composite film through a laminating machine to form a finished film;
(6) stamping, namely stamping the finished film by using a forming die and stamping and forming the product;
(7) detecting, namely detecting the processed product, wherein if the detection mark is positioned in the plate, the size is overlarge and unqualified, and if the detection mark is not positioned in the plate, the size is qualified; in this embodiment, visual inspection by a worker.
Example 2: unlike embodiment 1, in this embodiment, the detection in step (7) is determined by an optical detection device, specifically, the detection is taken and transmitted back to a computer, and the product image is analyzed and determined by a program in the computer.
As an improvement of the general structure of the invention, the marking device can be a cutter, a writing tool or a high-energy laser.
As an improvement of the general structure of the invention, the shape of the detection mark is matched with the corresponding edge of the product appearance.
As an improvement of the method, the degumming protective agent is formed by mixing a release agent and a filler.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The die cutting method convenient to detect is characterized by comprising a blanking die used for the method, wherein the blanking die comprises a die body and a marking device, and the die body is provided with a cutting tool with the same preset shape;
the method comprises the following steps:
(1) attaching OCA optical cement, placing the OCA optical cement above the heavy release film, and attaching the OCA optical cement and the heavy release film together through an attaching machine to form a composite film;
(2) coating a protective agent, namely coating a layer of uniform degumming protective agent on the upper surface of the composite film;
(3) blanking, namely blanking the composite film by using a blanking die, blanking a plate with the same shape as the preset shape on the OCA optical adhesive layer, and simultaneously leaving a detection mark on the composite film by using a marking device;
(4) standing, namely standing the composite membrane in the last step for 1-5 minutes;
(5) placing a light release film on the upper surface of the composite film, and laminating the light release film and the composite film through a laminating machine to form a finished film;
(6) stamping, namely stamping the finished film by using a forming die and stamping and forming the product;
(7) and detecting, namely detecting the processed product, and rapidly detecting whether the size of the processed product is qualified or not by judging whether the detection mark is positioned on the plate.
2. The die cutting method convenient for detection according to claim 1, wherein the marking device can be a cutter, a pen tool, a high-energy laser.
3. A die-cutting method for facilitating detection according to claim 1 or 2, characterized in that the marking means is arranged outside the die, the projection of the marking means on the composite film being outside the maximum dimension profile of the product.
4. The die cutting method for facilitating detection according to claim 1, wherein the detection mark has a shape matching a corresponding edge of the product shape.
5. The die cutting method for facilitating detection according to claim 1, wherein the detection operation is judged by a manual recognition or an optical detection device.
6. The die cutting method convenient for detection as claimed in claim 5, wherein the optical detection device takes an image of the product and transmits the image back to the computer, and the image of the product is analyzed and judged by a program in the computer.
7. The die cutting method convenient for detection according to claim 1, wherein the degumming protecting agent is formed by mixing a release agent and a filling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144634.6A CN112388732A (en) | 2020-10-23 | 2020-10-23 | Die cutting method convenient to detect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011144634.6A CN112388732A (en) | 2020-10-23 | 2020-10-23 | Die cutting method convenient to detect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112388732A true CN112388732A (en) | 2021-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011144634.6A Pending CN112388732A (en) | 2020-10-23 | 2020-10-23 | Die cutting method convenient to detect |
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| CN (1) | CN112388732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193548A (en) * | 2021-11-15 | 2022-03-18 | 苏州思立达电子有限公司 | Intelligent control sectional type adhesive tape die cutting process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001001168A (en) * | 1999-06-24 | 2001-01-09 | Showa Aircraft Ind Co Ltd | Manufacture of metallic honeycomb |
| CN102152557A (en) * | 2010-11-15 | 2011-08-17 | 天津工业大学 | Preparation method of high-strength polyethylene fiber/water-soluble polyurethane composite material |
| CN107011854A (en) * | 2017-03-13 | 2017-08-04 | 世星科技股份有限公司 | A kind of conductive graphite composite membrane and preparation method thereof |
| CN110587713A (en) * | 2018-06-13 | 2019-12-20 | 南昌欧菲显示科技有限公司 | Protective film detection method, protective film cutting method and protective film cutting die |
| CN110628339A (en) * | 2019-10-08 | 2019-12-31 | 东莞市优达胶粘制品有限公司 | OCA optical cement production process |
-
2020
- 2020-10-23 CN CN202011144634.6A patent/CN112388732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001001168A (en) * | 1999-06-24 | 2001-01-09 | Showa Aircraft Ind Co Ltd | Manufacture of metallic honeycomb |
| CN102152557A (en) * | 2010-11-15 | 2011-08-17 | 天津工业大学 | Preparation method of high-strength polyethylene fiber/water-soluble polyurethane composite material |
| CN107011854A (en) * | 2017-03-13 | 2017-08-04 | 世星科技股份有限公司 | A kind of conductive graphite composite membrane and preparation method thereof |
| CN110587713A (en) * | 2018-06-13 | 2019-12-20 | 南昌欧菲显示科技有限公司 | Protective film detection method, protective film cutting method and protective film cutting die |
| CN110628339A (en) * | 2019-10-08 | 2019-12-31 | 东莞市优达胶粘制品有限公司 | OCA optical cement production process |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114193548A (en) * | 2021-11-15 | 2022-03-18 | 苏州思立达电子有限公司 | Intelligent control sectional type adhesive tape die cutting process |
| CN114193548B (en) * | 2021-11-15 | 2023-09-12 | 苏州思立达电子有限公司 | Intelligent control sectional type adhesive tape die cutting process |
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Application publication date: 20210223 |
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