一种裂片扩膜治具
By designing a slit-film expansion fixture, the problems of filter scratches, edge breakage, and inconsistent spacing caused by traditional manual film expansion methods have been solved. This has achieved uniformity and consistency of the filters, improved production efficiency and product quality, and is applicable to slit-film expansion of various brittle materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU JIAHE PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional manual film expansion methods result in scratches, chipping, and inconsistent spacing of the filters. It is difficult to completely remove narrow-edge material, resulting in low efficiency and an inability to guarantee uniformity and consistency of the film splitting, which affects subsequent assembly.
A film-expanding fixture for film splitting has been designed, including a main body, a base plate, side plates, a connecting rod, and a support rod. The downward pressure of the roller is controlled by adjusting the position of the connecting rod in the U-shaped positioning groove. Combined with a hollow top plate and a dust-adhesive pad, direct contact and adsorption of dust are avoided, ensuring uniform force and cleanliness.
It improves the uniformity and consistency of filter slicing, reduces scratches and edge chipping, increases the spacing between small slices, improves production efficiency and product quality, and is suitable for slicing and expanding films of various brittle materials.
Smart Images

Figure CN224513393U_ABST
Abstract
Claims
1. A split film expanding jig, characterized by, The device includes a main body for expanding film, a base plate, a set of side plates, a set of connecting rods, and several support rods. The base plate has several positioning holes on its left and right sides, which match the support rods for fixed installation. The side plates are installed at the front and rear ends of the base plate. Each side plate has a U-shaped positioning groove at both ends, allowing adjustment of the roller's downward pressure by adjusting the position of the connecting rod within the U-shaped positioning groove. The main body of the expanding film fixture is mounted on top of the side plates and is used to place a steel ring with a filter attached.
2. The split membrane expanding jig of claim 1, wherein, The main body of the film expansion fixture is a top plate structure. The top plate is a rectangular plate with a hollow center and an annular step at its edge for placing a steel ring with a filter attached. The size of the hollow area in the center of the top plate is similar to the size of the hollow part of the steel ring to avoid the filter from contacting the fixture and causing contamination during placement.
3. The split membrane expanding jig of claim 2, wherein, A square groove is provided on each of the upper and lower sides of the top plate for taking out and putting in the steel ring.
4. The split membrane expanding jig of claim 2, wherein, Both the connecting rod and the support rod are cylindrical structures; several support rods are used to connect and fix the top plate and the bottom plate; the connecting rod passes through the U-shaped positioning grooves at both ends of the left and right side plates to connect the two side plates; the height of the side plate is the same as the length of the support rod to ensure that the top plate is in a horizontal state after installation.
5. The split membrane expanding jig of claim 1, wherein, The base plate is equipped with a dust-adhesive pad, which is used to absorb glass dust and falling dust generated during the cracking process.
6. The split membrane expanding fixture of claim 1, wherein, The fixture is made entirely of aluminum alloy.