Hob die-cutting system and method for oca optical glue with four-layer 1:1 structure

An optical adhesive and die-cutting technology, which is applied in the field of hob die-cutting system of OCA optical adhesive, can solve the problems of poor quality, misalignment and contamination in the adhesive tape lamination process, and achieves improvement of flatness and warpage, improving quality effect

Active Publication Date: 2020-07-21
TAICANG ZHANXIN ADHESIVE MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing OCA optical glue die-cutting methods are flat knife die-cutting machine and hob knife die-cutting machine. Many, in the process of flat-knife die-cutting machine, there will be defects such as edge overflow and product warping, which greatly affect the efficiency of production, and in the process of some adhesive tapes, it will cause deviation and dirt.

Method used

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  • Hob die-cutting system and method for oca optical glue with four-layer 1:1 structure

Examples

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Effect test

Embodiment 1

[0032] A hob die-cutting system for an OCA optical adhesive with a four-layer 1:1 structure of the present invention includes a laminating part 1, a die-cutting part 2, a process part 3 and a number of laminating wheel sets arranged in sequence;

[0033] The laminating part 1 includes a first discharge shaft 10, a second discharge shaft 11, and a third discharge shaft 13 that discharge materials in sequence. The first discharge shaft 10 is used to transport the carrier tape, and the second discharge shaft The shaft 11 is used to transport the OCA composite film, the OCA composite film includes a surface layer, a first functional layer, and a second functional layer arranged in sequence, and the third discharge shaft 13 is used to transport the light film in the process; the second discharge shaft A surface layer removal mechanism 12 for removing the surface layer is provided between 11 and the third discharge shaft 13. Under the action of the pressing wheel set, the shipping ca...

Embodiment 2

[0039] The present embodiment provides a method for hob die-cutting using the above-mentioned hob die-cutting system, comprising the following steps:

[0040] (1) Fitting: the first unwinding shaft 10 is used to transport the shipping carrier tape, the unwinding tension is set to 13N, and the groove making part of the groove making mechanism 14 is used to open a groove in the output shipping carrier tape. The width of the groove is smaller than the width of the OCA composite film attached to it, and the slotted waste produced by the grooved part is wound by the waste winding part. Then use the second unwinding shaft 11 to transport the OCA composite film. The OCA composite film includes a surface layer, a first functional layer, and a second functional layer arranged in sequence from top to bottom. The unwinding tension is set to 35N. Under the action, the second functional layer is attached above the shipping carrier tape, the first functional layer is located on the side of ...

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Abstract

The invention relates to the technical field of optical adhesive die-cutting, in particular to a hob die-cutting system for an OCA optical adhesive with a four-layer 1:1 structure and a method. The hob die-cutting method of the OCA optical adhesive includes three parts of fitting, die-cutting and processing. Through the control of the operation process of each part, the defects of the product edgeadhesive overflowing, product warpage and the like can be avoided. According to the method, the complicating of a traditional die-cutting process is changed, process line bodies are reduced, the space occupation of the equipment is greatly reduced, the number of production and processing operators is reduced, and the number of the workers is reduced with the reducing of the line bodies; the inputof materials is reduced, and the cost of the die-cutting process is reduced; and the production efficiency of the die-cutting is greatly improved.

Description

technical field [0001] The invention relates to the technical field of optical adhesive die-cutting processing, in particular to a hob die-cutting system and method for an OCA optical adhesive with a four-layer 1:1 structure. Background technique [0002] OCA optical adhesive is one of the raw materials for important touch screens. It is made of optical acrylic adhesive without substrate, and then a layer of release film is attached to the upper and lower bottom layers. It is a double-sided adhesive tape without substrate material. It is the best adhesive for touch screen. [0003] OCA Optical Adhesive Application: It is used for the assembly of display modules, cover plates and touch screens of various structures such as Incell, Oncell, OLED, GF2, GFF, OGS, GG, etc. [0004] The existing OCA optical adhesive die-cutting methods are flat-knife die-cutting machine and hob die-cutting machine, and the structures are non-1:1 and 1:1. For the OCA optical adhesive with a 1:1 st...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/74
CPCB29C65/74B29C66/02241B29C66/0326B29C66/45
Inventor 唐浩成陈高峰黄秋敏周剑姚琳琳
Owner TAICANG ZHANXIN ADHESIVE MATERIAL
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