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Injection molding mold for chain wheel of chain saw

A technology of injection molding and sprockets, which is applied in the field of injection molding molds for manufacturing chain saw sprockets, can solve problems such as low production efficiency, poor quality of parts, and impact on corporate benefits, so as to reduce production costs, improve production efficiency, and technology less demanding effect

Inactive Publication Date: 2013-02-13
ANJI DEKANG PRECISION CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional mechanical processing method has low production efficiency and cannot be mass-produced; it will seriously affect the benefits of the enterprise
Existing manufacturers generally use molds for production, but for ordinary molds, due to the injection of hot liquid, the pressure in the cavity increases sharply, which makes the molded parts stressed unevenly, resulting in defects, resulting in extremely poor quality parts

Method used

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  • Injection molding mold for chain wheel of chain saw
  • Injection molding mold for chain wheel of chain saw
  • Injection molding mold for chain wheel of chain saw

Examples

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] Such as Figure 1-3 As shown, the chain saw sprocket injection molding mold includes an upper mold 2 and a lower mold 3. Both the upper mold 2 and the lower mold 3 have fixing holes 7. The two molds are combined together and connected by fixing pins 8 inserted into the fixing holes 7. fixed. In order to guide the discharge of the gas inside the cavity, there are seven air guide pieces 6 around the cavity 1. The air guide pieces 6 are "T" shaped, and their ends are arc-shaped; Passage 63; the air guide plate 6 slides on the upper mold 2 through the cooperation of the chute 61 on the air guide plate 6 and the locking device 62, and the locking device 62 is a bolt. The lower mold 3 is provided with a groove 21 for matching with the air-guiding sheet 6, and also has a concave hole 211 for matching with a nut on the bolt on the groove 21. The liquid is i...

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Abstract

The invention discloses an injection molding mold for a chain wheel of a chain saw. The injection molding mold comprises an upper mold and a lower mold, wherein cavities are formed in the upper mold and the lower mold, and are connected with an injection runner and a pouring gate; air guide pieces with chutes are arranged at the peripheries of the cavities and are T-shaped; the end parts of the air guide pieces are arc-shaped; air guide passages are formed in the air guide pieces; the air guide pieces slide on the upper mold through the matching of the chutes and locking devices; and grooves matched with slip sheets are formed in the lower mold. The injection molding mold has the advantages that mass production in enterprises is realized, so as to improve production efficiency; the technical requirements on operators are low; enterprises' production costs can be reduced; internal gas can be discharged in a guiding manner; and the precision of formed components is high.

Description

technical field [0001] The invention relates to an injection molding mold, in particular to an injection molding mold for manufacturing chain saw chain wheels. Background technique [0002] The chain saw sprocket is an important part of the chain saw, and its function is to drive the saw chain to cut wood. The sprocket is generally welded by the sprocket gear and the hub assembly. The traditional sprocket gear manufacturing technology is produced by mechanical processing: stamping blank - heat treatment. The traditional mechanical processing method has low production efficiency and cannot be mass-produced; it will seriously affect the benefits of the enterprise. Existing manufacturers generally use molds for production, but for ordinary molds, due to the injection of hot liquid, the pressure in the cavity increases sharply, causing uneven force on the molded parts, resulting in defects, resulting in extremely poor quality of parts. Contents of the invention [0003] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/22B22F3/22
Inventor 张正德张健
Owner ANJI DEKANG PRECISION CASTING
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