Feeding device of injection molding machine

Abstract

The invention relates to a feeding device of an injection molding machine. The feeding device of the injection molding machine is characterized in that the feeding device comprises a stocker and a propeller, the stocker comprises a charging barrel which is used for loading injection molding raw materials and provided with a discharging port and a piston which is arranged in the charging barrel andcapable of moving along the length direction of the charging barrel, the propeller comprises an actuator which is provided with a transmission shaft for converting rotary motion into linear motion, adriving shaft which is connected with the transmission shaft through a connecting part and a pushing head which is connected with the driving shaft and driven by the driving shaft; and the connectingpart can move in the length direction of the charging barrel along the transmission shaft, the pushing head cooperates with the charging barrel and can move in the length direction of the charging barrel, and the piston is farther away from the driving shaft than the push head. According to the feeding device of the injection molding machine, pollution to the injection molding raw materials and waste of the injection molding raw materials can be reduced.

Description

technical field [0001] The invention relates to a feeding device of an injection molding machine. Background technique [0002] With the development of technology, the mechanical structural components of many products are increasingly showing a trend of miniaturization. In particular, medical products implanted in the body (sometimes referred to as "implanted medical products") such as artificial retinal stimulators, cochlear implants, artificial intervertebral disc products and other structural components are usually injection molded. These structural components generally require small size and high molding accuracy. But also need to have good biocompatibility. [0003] At present, the injection molding of implanted medical products usually completes injection molding by providing injection molding raw materials to the feeding device of the injection molding machine and going through certain procedures. The feeding device of commonly used injection molding machines genera...

AI Technical Summary

Problems solved by technology

[0004] However, this type of feeding device is in direct contact with the injection molding raw material, and there are usually many parts in contact, so that the injection molding raw material may be contaminated during the injection molding process, making it difficult for the injection molded product to meet the requirements of medical products, for example

In addition, due to more contact between parts and injection molding raw materials during the injection molding process, there are more injection molding raw materials remaining on the parts, which causes waste of injection molding raw materials and even leads to the problem that the accuracy of feeding materials is difficult to control

In addition to this, wasted raw materials also add to the cost due to the high cost of injection molding raw materials for implanted medical products

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