Screw of injection molding machine

A screw and helix technology for injection molding machines, applied in the field of injection molding processing equipment, can solve problems affecting the normal use of injection molding machines, poor product plasticization quality, corrosive damage to the screw, etc., to achieve low resistance, no air bubbles, and high plasticization quality Effect

CN107932852AInactive Publication Date: 2018-04-20JIANGMEN MAXWELL MAGNET IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2018-04-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a screw of an injection molding machine. The screw comprises a body and a feed chute spirally embracing the surface of the body. The diameter of the body is equal from head totail. The depth of the feed chute is gradually increased from head to tail. Multiple grooves with square openings are formed in the feed chute at intervals. The surface of the body and the surface ofthe feed chute are covered with ceramic coatings. By means of the screw of the injection molding machine, molten plastic can smoothly flow to the discharge end conveniently, resistance is low, the molten plastic is not likely to be stagnated, and the production efficiency is high. The molten plastic is evenly mixed, bubbles are not likely to be generated, and the plastifying quality is high. The screw is high in corrosion resistance, resistant to abrasion and high temperature and more durable.
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Description

technical field

[0001] The invention relates to the technical field of injection molding processing equipment, in particular to an injection molding machine screw. Background technique

[0002] The screw of the injection molding machine is one of the key components of the injection molding machine. When it is working, it rotates in the barrel to melt and plasticize the solid polymer particles or powder, store and measure, and then inject a certain amount of molten plastic into the mold. Molding, after the mold is cooled, it is ejected, and the plastic product can be obtained. The plasticizing ability and adaptability to special molding materials of existing injection molding machine screws often have various deficiencies, and there will be problems of poor plasticizing quality of the product, and the screw will also suffer from corrosion damage, easy wear, and intolerance. Defects such as high temperature affect the normal use of the injection molding machine. Contents of...

Examples

Embodiment Construction

[0013] refer to figure 1 , a screw for injection molding machine of the present invention, comprising a body 1, and a feeding groove 2 spirally surrounding the surface of the body 1, the diameter of the body 1 increases from the beginning to the end, and the depth of the feeding groove 2 is It gradually increases from the beginning to the end, and a plurality of grooves 3 with square openings are arranged at intervals on the feeding chute 2. The surfaces of the body 1 and the feeding chute 2 are covered with a ceramic coating. The screw of the injection molding machine of the present invention is convenient for melting plastics. Smooth flow to the discharge end, less resistance, less stagnation, high production efficiency; uniform mixing, less air bubbles, high plasticization quality; the screw itself has strong corrosion resistance, wear resistance, high temperature resistance, and is more durable.

[0014] In this embodiment, preferably, the groove 3 has a circular or ellipt...