CN112477206A - Die cutting method of protective film easy to elastically deform due to stretching - Google Patents
Die cutting method of protective film easy to elastically deform due to stretching Download PDFInfo
- Publication number
- CN112477206A CN112477206A CN202011203192.8A CN202011203192A CN112477206A CN 112477206 A CN112477206 A CN 112477206A CN 202011203192 A CN202011203192 A CN 202011203192A CN 112477206 A CN112477206 A CN 112477206A
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- CN
- China
- Prior art keywords
- protective film
- film
- stretching
- release
- die
- Prior art date
- 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
-
- 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
- B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
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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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The invention discloses a die cutting method of a protective film easy to elastically deform due to stretching, and particularly relates to the field of protective films, which comprises the following steps of S1: unreeling the protective film roll which is coated and compacted, and enabling the protective film to pass through a water tank; s2: the protective film passing through the water tank extends to a drying area through a guide roller, and water stains on the surface of the protective film are dried; s3: attaching the dried protective film to a release film; s4: punching the combined film after being attached to ensure that the die-cutting rule can completely cut through the protective film; s5: waste collection; s6: and (6) rolling. According to the invention, the surfaces of the two sides of the protective film are dried, and the release of the elastic stress in the protective film is further accelerated under the action of temperature, so that the protective film is ensured to recover due to the elastic deformation of the protective film rolled in the roller before the protective film is attached to the release film, and the deformation of the protective film due to rolling and stretching is released twice, thereby being beneficial to improving the quality of the product after die cutting.
Description
Technical Field
The invention relates to the technical field of protective films, in particular to a die cutting method of a protective film which is easy to elastically deform due to stretching.
Background
The protective film is the most commonly used product in the flat panel display industry and the electronic industry, most protective films are formed by die cutting, the supplied materials of the protective film are roll-type materials provided by plastic factories, the protective film generally has viscosity, and a certain force is needed when the protective film is pulled out from the roll-type materials under the action of vacuum adsorption. Most protective films have elastic deformation characteristics, so that the protective films must be elastically deformed to some extent when the protective films are punched out.
The protective film cannot be punched independently, on one hand, the physical property of the protective film is not suitable for punching, on the other hand, a layer of carrier is required before the finished protective film is attached to an electronic product (a target object), so the protective film is attached to a release material after being pulled out from a roll material, the release material is taken as a base, and punching, storage and transportation links are completed along with the protective film until the protective film is attached to the electronic product.
As described above, the protective film is deformed when being pulled out from the roll material until being stuck to the release material, and after the punching process is completed, the formed protective film is separated from the rest portion previously integrated therewith, so that the shrinkage deformation is generated, which changes the shape of the protective film and affects the quality of the final product.
Disclosure of Invention
In order to overcome the above defects in the prior art, embodiments of the present invention provide a die cutting method for a protective film that is easily elastically deformed by stretching, and the problems to be solved by the present invention are: the existing die cutting method of the protective film is easy to generate shrinkage deformation, and the product quality is influenced.
In order to achieve the purpose, the invention provides the following technical scheme: a die cutting method of a protective film which is easy to elastically deform due to stretching comprises the following steps:
s1: unreeling the protective film roll which is coated and compacted, and enabling the protective film to pass through a water tank;
s2: the protective film passing through the water tank extends to a drying area through a guide roller, and water stains on the surface of the protective film are dried;
s3: attaching the dried protective film to a release film;
s4: punching the combined film after being attached to ensure that the die-cutting rule can completely cut through the protective film and only a cutting line is formed on the release film;
s5: winding the punched waste material on a waste collecting roller;
s6: respectively winding the release film and the punched protective film on two winding rollers;
the bonding in step S3 is a tension-free bonding, that is, when the protective film is bonded to the release film, the protective film has no tension, so as to ensure that the protective film is in a natural state.
In a preferred embodiment, all operations are performed in a clean room, and the ambient temperature of the clean room is 20-25 ℃ and the humidity is 50-60%.
In a preferred embodiment, the temperature of the drying zone in the step S2 is 35-45 ℃, and the wind speed and the temperature of both sides of the protective film are the same.
In a preferred embodiment, the die-cut combined film in step S4 has a separation angle between the protective film and the release film of 120 ° to 160 °.
In a preferred embodiment, in the step of separating the protective film from the release film in step S6, the separating force is the gravity of the protective film itself, and the release film is actively wound up by the release film winding roller.
The invention has the technical effects and advantages that:
1. according to the invention, the compacted protective film roll is firstly unreeled from the roller, the unreeled protective film passes through the water tank, and the air blower is introduced into the water tank, so that the water flow in the water tank flows when the air blower works, and the protective film is slightly washed by the water flow, so that the stretching deformation quantity caused by compaction of the protective film in the roller can be quickly recovered, and the influence of the stretching deformation quantity of the protective film on the product quality during die cutting can be favorably reduced;
2. according to the invention, the drying machine is started to dry the two side surfaces of the protective film, and the release of the elastic stress in the protective film is further accelerated under the action of temperature, so that the elastic deformation of the protective film is recovered due to the winding in the roller before the protective film is attached to the release film, and the quality of the die-cut product is greatly improved by releasing the deformation of the protective film due to the winding and stretching twice.
Drawings
FIG. 1 is a schematic view of the die cutting method 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.
The die cutting method of the protective film easy to elastically deform due to stretching provided by the embodiment of the invention can comprise the following steps of:
s1: unreeling the protective film roll which is coated and compacted, and enabling the protective film to pass through a water tank;
s2: the protective film passing through the water tank extends to a drying area through a guide roller, and water stains on the surface of the protective film are dried;
s3: attaching the dried protective film to a release film;
s4: punching the combined film after being attached to ensure that the die-cutting rule can completely cut through the protective film and only a cutting line is formed on the release film;
s5: winding the punched waste material on a waste collecting roller;
s6: respectively winding the release film and the punched protective film on two winding rollers;
the lamination in the step S3 is a tension-free lamination, that is, when the protective film is laminated with the release film, the protective film has no tension, so as to ensure that the protective film is in a natural state; firstly unreel the protection film roll of compaction from the roller, and make the protection film that unreels pass through the basin, let in the drum machine in to the basin, the rivers that the drum machine work made in the basin flow, rivers wash away the protection film gently, can make the tensile deformation volume that causes at the compaction of protection film in the roller resume fast, the rethread is opened the drying-machine and is dried the both sides surface of protection film, under the effect of temperature, the release of the inside elastic stress of protection film has further been accelerated, thereby guarantee the protection film with before the laminating of type membrane, its protection film self has been resumeed owing to the elastic deformation of rolling in the roller, release the tensile deformation of protection film because of the rolling through twice, make it avoid the cross cutting in-process because tensile deformation influences the emergence of product quality problem.
All operations are carried out in a dust-free room, and the environment temperature of the dust-free room is 20-25 ℃ and the humidity is 50-60%.
The temperature of the drying area in the step S2 is 35-45 ℃, and the wind speed and the temperature of the two sides of the protective film are the same.
In the punched combined film in the step S4, the separation angle between the protective film and the release film is 120 ° to 160 °.
In the step of separating the protective film from the release film in step S6, the separating force is the gravity of the protective film itself, and the release film is actively wound up by the release film winding roll.
As shown in fig. 1, the implementation scenario specifically includes: in practical use, firstly, the compacted protective film roll is uncoiled from the roller, the uncoiled protective film passes through the water tank, the air blower is introduced into the water tank, the air blower works to enable water flow in the water tank to flow, the water flow slightly washes the protective film, tensile deformation caused by compaction of the protective film in the roller can be quickly recovered, a certain amount of water drops are adhered on the protective film extending out of the water tank, the surfaces of two sides of the protective film are dried by opening the dryer, release of elastic stress in the protective film is further accelerated under the action of temperature, and therefore the protective film is ensured to be recovered due to elastic deformation coiled in the roller before the protective film is laminated with the release film, tension-free lamination is carried out in step S3, namely when the protective film is laminated with the release film, the protective film has no tension, so as to ensure that the protective film is in a natural state, and avoid the deformation of the protective film due to shrinkage, the quality of a product cut by a die is influenced, the practicability of the die cutting method is greatly improved, and the embodiment specifically solves the problem that the die cutting method of the protective film in the prior art is easy to shrink and deform and influences the quality of the product.
In summary, the following steps: according to the invention, the compacted protective film roll is firstly unreeled from the roller, the unreeled protective film passes through the water tank, the air blower is introduced into the water tank, the air blower works to enable water flow in the water tank to flow, the water flow slightly washes the protective film, tensile deformation caused by compaction of the protective film in the roller can be quickly recovered, then the drying machine is started to dry the two side surfaces of the protective film, and under the action of temperature, the release of elastic stress in the protective film is further accelerated, so that the protective film is ensured to recover due to elastic deformation rolled in the roller before the protective film is attached to the release film, and the problem that the product quality is influenced due to tensile deformation in the die cutting process is avoided by releasing the elastic deformation of the protective film in the rolling and stretching process twice.
And finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (5)
1. A die cutting method for a protective film which is easy to deform elastically due to stretching is characterized by comprising the following steps:
s1: unreeling the protective film roll which is coated and compacted, and enabling the protective film to pass through a water tank;
s2: the protective film passing through the water tank extends to a drying area through a guide roller, and water stains on the surface of the protective film are dried;
s3: attaching the dried protective film to a release film;
s4: punching the combined film after being attached to ensure that the die-cutting rule can completely cut through the protective film and only a cutting line is formed on the release film;
s5: winding the punched waste material on a waste collecting roller;
s6: respectively winding the release film and the punched protective film on two winding rollers;
the bonding in step S3 is a tension-free bonding, that is, when the protective film is bonded to the release film, the protective film has no tension, so as to ensure that the protective film is in a natural state.
2. The die-cutting method of a protective film susceptible to elastic deformation due to stretching as claimed in claim 1, wherein: all operations are carried out in a dust-free room, and the environment temperature of the dust-free room is 20-25 ℃ and the humidity is 50-60%.
3. The die-cutting method of a protective film susceptible to elastic deformation due to stretching as claimed in claim 1, wherein: the temperature of the drying area in the step S2 is 35-45 ℃, and the wind speed and the temperature of the two sides of the protective film are the same.
4. The die-cutting method of a protective film susceptible to elastic deformation due to stretching as claimed in claim 1, wherein: in the punched combined film in the step S4, the separation angle between the protective film and the release film is 120 ° to 160 °.
5. The die-cutting method of a protective film susceptible to elastic deformation due to stretching as claimed in claim 1, wherein: in the step of separating the protective film from the release film in step S6, the separating force is the gravity of the protective film itself, and the release film is actively wound up by the release film winding roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011203192.8A CN112477206A (en) | 2020-11-02 | 2020-11-02 | Die cutting method of protective film easy to elastically deform due to stretching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011203192.8A CN112477206A (en) | 2020-11-02 | 2020-11-02 | Die cutting method of protective film easy to elastically deform due to stretching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112477206A true CN112477206A (en) | 2021-03-12 |
Family
ID=74927863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011203192.8A Withdrawn CN112477206A (en) | 2020-11-02 | 2020-11-02 | Die cutting method of protective film easy to elastically deform due to stretching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112477206A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851262A (en) * | 2022-07-07 | 2022-08-05 | 南通君越新材料科技有限公司 | Film cutting machine capable of degrading plastic film |
-
2020
- 2020-11-02 CN CN202011203192.8A patent/CN112477206A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851262A (en) * | 2022-07-07 | 2022-08-05 | 南通君越新材料科技有限公司 | Film cutting machine capable of degrading plastic film |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210312 |
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| WW01 | Invention patent application withdrawn after publication |