自封袋吹塑模具的成型盖板
By improving the forming cover plate of the blow molding die for self-sealing bags, material B is extruded at an angle and merged with material A, which solves the problem of extrusion between material A and material B, and improves product yield and the stability of self-sealing bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KEHUI PLASTIC TECH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional molding cover plate design causes material A and material B to easily squeeze each other during extrusion, resulting in product deformation, high production defect rate, and difficulty in adjusting the extrusion force to be consistent.
The extrusion channel design of the molded cover plate allows material B to be extruded at an angle. The extrusion inertia causes material B to merge with material A to form a skeleton, preventing mutual intrusion and improving the extrusion channel design of the male and female threads.
It improved product yield, enhanced the stability and ease of use of self-sealing bags, and reduced the production defect rate.
Smart Images
Figure CN224510363U_ABST
Abstract
Claims
1. A forming cover for a self-sealing bag blow mold, characterized by, include: A disc-shaped plate; an air outlet is provided at the center of the plate; the plate is provided with a first extrusion channel for forming male buckles and a second extrusion channel for forming female buckles; the first extrusion channel and the second extrusion channel are both located near the outer periphery of the plate, and are symmetrically distributed about the centerline of the plate; the first extrusion channel and the second extrusion channel both extend from the bottom surface of the plate at an acute angle α with the vertical direction from the inside to the outside and from the bottom to the top surface of the plate.
2. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The acute angle α ranges from 20° to 10°.
3. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The number of the first extrusion channel and the second extrusion channel are both multiple and they are arranged in pairs.
4. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The plate body is also provided with a third extrusion channel and a fourth extrusion channel; the third extrusion channel and the fourth extrusion channel are both grooves formed on the outer periphery of the plate body and arranged vertically; the third extrusion channel is arranged adjacent to the first extrusion channel; the fourth extrusion channel is arranged adjacent to the second extrusion channel.
5. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The bottom surface of the plate is also provided with a limiting protrusion ring, and the limiting protrusion ring and the air outlet are coaxially arranged.
6. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The plate body is also provided with multiple positioning holes, and the centers of each positioning hole are distributed on the same circumference.
7. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The top surface of the plate is also provided with an identification mark, which is used to mark the top surface of the plate.
8. The forming cover of a self-sealing bag blow mold according to claim 1, wherein The surface of the plate is provided with a chrome plating layer.