Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pouring gate structure of injection mold of soft rubber watchband type product and molding method

An injection mold and molding method technology, which is applied to the molding field of soft rubber watch strap products, can solve the problems of difficulty in trimming gates, reduced toughness, waste of manpower, etc., and achieves the effects of saving manpower, improving quality, and improving work efficiency.

Inactive Publication Date: 2016-08-17
GOERTEK INC
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a gate structure for the injection mold of soft rubber watch strap products to solve appearance defects such as creases, flow lines, reduced toughness, and difficulty in filling the surface of soft rubber watch strap products. And the technical problem of trimming the gate is difficult and wastes manpower

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pouring gate structure of injection mold of soft rubber watchband type product and molding method
  • Pouring gate structure of injection mold of soft rubber watchband type product and molding method
  • Pouring gate structure of injection mold of soft rubber watchband type product and molding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as image 3 , Figure 4 and Figure 5 Commonly shown, a gate structure of an injection mold for soft rubber watch band products includes a runner 1 arranged on the injection mold, and a point gate 2 is provided between the end of the runner 1 and the cavity of the injection mold. The gate 2 is correspondingly arranged at a strap hole 31 of the soft rubber strap 3 . This gate structure is suitable for soft rubber strap products.

[0039] The runner 1 gradually narrows along the flow direction of the molten raw material. The point gate 2 gradually narrows along the flow direction of the molten raw material.

[0040] Since the gate form of the injection mold is changed from the existing side gate to point gate 2 to feed glue, and the point gate 2 is set at a strap hole 31 that is not commonly used for soft rubber watch strap products, point The gate 2 is small, and the mold is automatically broken after the product is formed, and then punched off with a punch wit...

Embodiment 2

[0043] The embodiment of the present invention discloses a method for forming a soft rubber watchband product. Using the gate structure of the injection mold for the soft rubber watchband product provided in the first embodiment above includes the following steps:

[0044] A. Mold closing;

[0045] B. Melting: Heat and melt the raw materials in the barrel of the injection molding machine. The raw materials are TPU materials, and the temperature of the raw materials is 185°C, which can reduce the molding defects of the products;

[0046]C. Injection molding: The molten raw material is injected into the injection mold through the nozzle of the injection molding machine by a multi-stage injection process and kept under pressure to ensure the molding quality of the product. The holding time is 0.5s, the second-stage forming product is 50%, the second-stage holding time is 2s, the third-stage forming product is 95%, the third-stage holding time is 3s, and the rest of the product is...

Embodiment 3

[0051] This embodiment is basically the same as Embodiment 2, the difference is that in step B, the material temperature of the raw material is 175°C; The pressing time is 0.7s, the holding time of the second stage is 1.5s, and the holding time of the third stage is 2.5s; in step D, the cooling time is 8s.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a pouring gate structure of an injection mold of a soft rubber watchband type product and belongs to the technical field of injection molds. The pouring gate structure comprises a flow channel arranged on the injection mold; a point pouring gate is arranged between the tail end of the flow channel and a mold cavity of the injection mold; the point pouring gate is correspondingly arranged at a watchband hole position of a soft rubber watchband type product. The invention further discloses a molding method of the soft rubber watchband type product. By virtue of the pouring gate structure of the injection mold of the soft rubber watchband type product, the molding method comprises a mold closing step, a fusing step, an injection molding step, a cooling and metering step, a mold opening step and an ejection step, wherein in the injection molding step, fused raw materials are injected into the injection mold through a nozzle of an injection molding machine by adopting a multi-grade injection molding process and the pressure is kept. After the pouring gate is removed, traces remained on the product are not obvious and the quality of the soft rubber watchband type product is improved; and an operation flow is optimized, the stability of a production cycle is guaranteed, the working efficiency is improved and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of injection molds, and in particular relates to a gate structure of an injection mold for soft rubber watch strap products, and also relates to a molding method for soft rubber watch strap products. Background technique [0002] Common injection methods for product injection molding include corner gate, side gate, fan gate, latent rib gate, etc. Among them, the side gate has a wide range of applications and is especially suitable for two-plate multi-cavity molds. It is mostly used for pouring molding of small and medium-sized plastic parts. At present, in the injection molding process of the soft rubber watchband products produced by the existing technology, the gate form generally adopted is the molding method of the side gate; at the same time, the raw material of the soft rubber products generally uses TPU (Thermoplastic polyurethanes, thermoplastic polyurethane) Elastomer rubber) material, according to...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B29C45/27B29C45/38B29C45/73B29C45/77
CPCB29C45/2708B29C45/0025B29C45/382B29C45/73B29C45/77B29C2045/0027B29C2945/76498B29C2945/76561B29C2945/76732B29C2945/76862
Inventor 张冰冰马立平孙冠楹
Owner GOERTEK INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com