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CN-117183378-B - Die cutting process

CN117183378BCN 117183378 BCN117183378 BCN 117183378BCN-117183378-B

Abstract

The invention relates to the field of die cutting production technology, in particular to a die cutting technology and a die cutting product production line, comprising the following steps of forming a first semi-finished product, wherein the first semi-finished product comprises a release film, a double faced adhesive tape and facial tissues which are sequentially compounded, mark point clearance holes are formed on the release film, through holes are formed on the double faced adhesive tape, and the mark point clearance holes are arranged in the range of the through holes; forming a second semi-finished product, wherein the second semi-finished product comprises a PET film, a protective film and a low-viscosity film which are sequentially compounded, forming a third semi-finished product, the third semi-finished product comprises a double-sided adhesive tape and a second semi-finished product which are sequentially compounded, the double-sided adhesive tape is compounded with the PET film, mark points are formed in through holes of the double-sided adhesive tape, the third semi-finished product comprises the steps of sequentially compounding the second semi-finished product, the first semi-finished product and mark point material layers, the mark point material layers are compounded with a release film, and cutting mark point material layers in mark point avoidance holes through a flat knife sleeve cutting die, so that mark points with specified appearance are formed on the PET film.

Inventors

  • WANG DONG
  • LI HAILONG
  • LIANG HAO
  • LIU LIGUANG
  • LIU JINGCHENG

Assignees

  • 深圳市领滔科技有限公司

Dates

Publication Date
20260508
Application Date
20230809

Claims (7)

  1. 1. The die cutting process is characterized by comprising the following steps of: Forming a first semi-finished product (100), wherein the first semi-finished product (100) comprises a release film (110), a double-sided adhesive tape (120) and facial tissues (130) which are sequentially compounded, mark point clearance holes (140) are formed in the release film (110), through holes (150) are formed in the double-sided adhesive tape (120), and the mark point clearance holes (140) are arranged in the range of the through holes (150); Forming a second semi-finished product (200), wherein the second semi-finished product (200) comprises a PET film (210), a protective film (220) and a low-mucosa (230) which are sequentially compounded; Forming a third semi-finished product (300), wherein the third semi-finished product (300) comprises the double faced adhesive tape (120) and the second semi-finished product (200) which are sequentially compounded, the double faced adhesive tape (120) is compounded with the PET film (210), and mark points (311) are formed in the through holes (150) of the double faced adhesive tape (120); The forming of the third semi-finished product (300) comprises the steps of sequentially compounding the second semi-finished product (200), the first semi-finished product (100) and a mark point material layer (310), wherein the mark point material layer (310) is compounded with the release film (110), cutting the mark point material layer (310) in the mark point clearance hole (140) through a flat knife sleeve cutting die, and forming the mark point (311) with a specified appearance on the PET film (210); wherein, the step of sequentially compounding the second semi-finished product (200), the first semi-finished product (100) and the mark point material layer (310) comprises the following steps: Removing the facial tissue (130) by a first waste discharge tape; compounding the second semi-finished product (200) with the double-sided tape (120); and compounding the mark point material layer (310) with the release film (110), wherein the mark point material layer (310) can sequentially pass through the mark point clearance hole (140) and the through hole (150) to be contacted and adhered with the PET film (210) under the extrusion action of the compounding action.
  2. 2. The die cutting process according to claim 1, wherein the forming of the third semi-finished product (300) further comprises the steps of: Rolling the mark point material layer (310); and rolling the release film (110) to form a third semi-finished product (300).
  3. 3. The die cutting process according to claim 1, wherein the forming of the first semi-finished product (100) comprises the steps of: sequentially compounding the release film (110), the double-sided tape (120) and the facial tissue (130); Punching mark point avoidance holes (140) on the release film (110), the double-sided adhesive tape (120) and the facial tissues (130) by adopting a flat knife sleeve cutting die, and discharging waste; and punching the through holes (150) on the double faced adhesive tape (120) and the facial tissue (130) by adopting a flat cutter sleeve cutting die, and discharging waste.
  4. 4. The die cutting process according to claim 2, wherein the forming of the first semi-finished product (100) further comprises the steps of: punching a covering structure (160) from the release film (110), the double-sided adhesive tape (120) and the facial tissue (130) by adopting a flat cutter sleeve cutting die, wherein the area of the covering structure (160) is not smaller than the area of the mark point (311); -collecting the covering structure (160).
  5. 5. The die cutting process of claim 4, further comprising forming a fourth semi-finished product (400), the forming of the fourth semi-finished product (400) comprising the steps of: cutting out the shapes of the double-sided adhesive tape (120) and the PET film (210); And removing the waste outer frames of the double faced adhesive tape (120) and the PET film (210) to form a fourth semi-finished product (400).
  6. 6. The die cutting process of claim 5, further comprising forming a fifth semi-finished product (500), the forming of the fifth semi-finished product (500) comprising the steps of: Cutting out the outline of the protective film (220); And removing the outer frame waste of the protective film (220) to form a fifth semi-finished product (500).
  7. 7. The die cutting process of claim 6, further comprising forming a finished product (600), the forming of the finished product (600) comprising the steps of: -attaching the cover structure (160) to the mark point (311); rolling the low mucosa (230).

Description

Die cutting process Technical Field The invention relates to the field of die cutting production processes, in particular to a die cutting process. Background Mark points are usually required to be arranged on die-cut products so as to facilitate subsequent detection and identification, and the mark points are mainly attached to the original film by a thimble ejection mode at present and then formed to obtain a specified punctiform appearance. In the circular knife sleeving and cutting process, the inner frame and the outer frame of the die-cut film are formed by sleeving and cutting the circular knife, in order to reduce the sheet falling condition, mark points are bonded with an original film through ejector pins and then die-cut, the deformation of the mark points is serious due to the ejector pin ejector pins, the customer equipment is difficult to identify, the circular knife sleeving and cutting precision is poor, and the cutting size of the mark points is difficult to accurately control. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a die cutting process which can improve the dimensional accuracy and the flatness of mark points. The application also provides a die-cutting product production line capable of realizing the die-cutting process. The die cutting process according to the embodiment of the first aspect of the present application comprises the following steps: Forming a first semi-finished product, wherein the first semi-finished product comprises a release film, a double faced adhesive tape and facial tissues which are sequentially compounded, mark point clearance holes are formed in the release film, through holes are formed in the double faced adhesive tape, and the mark point clearance holes are arranged in the range of the through holes; Forming a second semi-finished product, wherein the second semi-finished product comprises a PET film, a protective film and a low-mucosa which are sequentially compounded; forming a third semi-finished product, wherein the third semi-finished product comprises a double faced adhesive tape and a second semi-finished product which are sequentially compounded, the double faced adhesive tape is compounded with a PET film, and mark points are formed in through holes of the double faced adhesive tape; The method comprises the steps of sequentially compounding a second semi-finished product, a first semi-finished product and a mark point material layer, compounding the mark point material layer with a release film, and cutting the mark point material layer in a mark point clearance hole through a flat knife sleeve cutting die so as to form mark points with specified appearance on a PET film. The die cutting process provided by the embodiment of the invention has at least the following beneficial effects: According to the embodiment of the application, the mark point material layer, the release film, the double faced adhesive tape and the PET film are sequentially compounded, and the mark point avoidance holes and the through holes can be regarded as avoidance structures for mark points, so that the mark point material layer can be adhered to the PET film through the two avoidance structures in the compounding process; in addition, the mark point avoiding holes, the through holes and the mark points are cut and formed respectively in a flat knife die cutting mode, and the flat knife die cutting die can correct deviation by means of the positioning Kong Shishi, so that the dimensional accuracy of relevant hole sites and mark points is improved. Therefore, the die cutting process provided by the embodiment of the application can improve the appearance accuracy of mark points from the two aspects of surface flatness and cutting size, and is beneficial to remarkably improving the appearance yield of die-cut products. According to some embodiments of the invention, the second semi-finished product, the first semi-finished product and the mark point material layer are sequentially compounded, and the method comprises the steps of removing facial tissues through a first waste discharge adhesive tape, compounding the second semi-finished product with double-sided adhesive tape, compounding the mark point material layer with a release film, and enabling the mark point material layer to be in contact adhesion with a PET film through mark point avoidance holes and through holes sequentially under the extrusion action of the compounding action. According to some embodiments of the invention, forming the third semi-finished product further comprises the steps of rolling the mark point material layer and rolling the release film to form the third semi-finished product. According to some embodiments of the invention, forming the first semi-finished product comprises the following steps of sequentially compounding a release film, double-sided adhesive tape and faci