一种用于拉链的注塑装置
By designing an injection molding device for zippers, and utilizing the cooperation of guide plates, adjusting plates, inserts, cam shafts, and ejector pins, the problem of zipper molds not being able to be perfectly demolded in traditional injection molding methods has been solved, and smooth demolding of injection-molded zippers has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI YIMEI ZIPPER CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional injection molding methods result in zipper molds not being able to demold perfectly, leading to issues with undercutting.
An injection molding device for zippers was designed, comprising a first molding die, a second molding die, a waste plate, and a stripping molding mechanism. Through the cooperation of a guide plate, an adjusting plate, inserts, a cam shaft, and an ejector pin, the injection-molded zipper can be successfully demolded.
It effectively prevents the formation of undercuts after injection molding of zippers, achieving perfect demolding of injection molded zippers.
Smart Images
Figure CN224510316U_ABST
Abstract
Claims
1. An injection molding device for a zipper comprising a first shaping mold (1), characterized in that, A second shaping mold (2) is installed on one side of the first shaping mold (1), a waste plate (3) is installed on one side of the second shaping mold (2), and a material removal and shaping mechanism is provided on the surface of the first shaping mold (1).
2. An injection molding apparatus for a slide fastener according to claim 1, wherein The material stripping and shaping mechanism includes a guide plate (14) fixedly connected to the surface of the first shaping mold (1), and an adjustment plate (7) is slidably connected to the surface of the guide plate (14). Multiple inserts (8) are fixedly connected to the opposite surfaces of a pair of adjustment plates (7).
3. An injection molding apparatus for a slide fastener according to claim 2, wherein The surface of the second molding mold (2) is fixedly connected to a fixing plate (9), the lower surface of the adjusting plate (7) is fixedly connected to a convex shaft (11), the surface of the fixing plate (9) is fixedly connected to an L-shaped inclined plate (10), the convex shaft (11) extends into the interior of the L-shaped inclined plate (10), and the diameter of the convex shaft (11) is adapted to the inner wall of the L-shaped inclined plate (10).
4. An injection molding apparatus for a slide fastener according to claim 1, wherein The surface of the first molding die (1) is provided with a first flow channel (13), the inner wall of the first flow channel (13) is provided with an injection hole (16), and the inner wall of the first flow channel (13) is provided with a plurality of first molding grooves (15).
5. An injection molding apparatus for a slide fastener according to claim 1, wherein The surface of the second molding mold (2) is provided with a second flow channel (5), and the inner wall of the second flow channel (5) is provided with a plurality of second molding grooves (6). The positions of the second molding grooves (6) and the first molding grooves (15) are corresponding. The number of the second molding grooves (6) and the first molding grooves (15) is the same as the number of inserts (8). The inner cavity of the second molding grooves (6) and the first molding grooves (15) is formed by injection molding of injection zippers (12).
6. An injection molding apparatus for a slide fastener according to claim 1, wherein The surface of the waste board (3) is fixedly connected with a plurality of ejector pins (4), the number of ejector pins (4) being the same as that of the injection molding zipper (12), and one end of the ejector pin (4) extending through the interior of the second molding groove (6) and flush with the inner wall of the second molding groove (6).