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Injection screw for injection molding machine

A technology for injection molding machines and screws, which is applied in the field of injection molding screws for injection molding machines, can solve problems such as low melting capacity, unstable melting temperature, and insufficient effects, and achieve enhanced rapid mixing and plasticization, improved plasticization quality, Effect of high plasticizing ability

Inactive Publication Date: 2015-03-25
JIANGSU HONGYUAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the effect produced by only changing these parameters is often not obvious enough; resulting in low mixing efficiency, poor quality of melt plasticization, unstable melting temperature, low melting ability, etc.

Method used

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  • Injection screw for injection molding machine

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Embodiment Construction

[0013] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0014] see figure 1 , the embodiment of the present invention includes:

[0015] An injection molding screw for an injection molding machine, comprising a screw body whose outer surface is uniformly distributed with helical sheets 4, the screw body sequentially includes a feeding section 1 for solid feeding and conveying, a compression section 2 for compacting and melting, and further plasticizing and In the homogenizing and metering homogenizing section 3 , the helical piece of the compression section 2 is a helical gear piece 41 , and a number of protruding blocks 5 are evenly distributed on both sides of the helical gear piece 41 .

[0016] The helical direction of the gear groove on the hel...

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Abstract

The invention discloses an injection screw for an injection molding machine. The injection screw comprises a screw body, wherein spiral plates are uniformly distributed on the external surface of the screw body; the screw body sequentially comprises a feeding section, a compression section and homogenization section; the spiral plate of the compression section is a spiral gear plate; a plurality of bulges are uniformly distributed on two side surfaces of the spiral gear plate. By virtue of the mode, rapid mixing and plasticizing of a fusant are enhanced, the fusant plasticizing quality is improved; furthermore, the low-temperature homogeneous fusant, extrusion stability and high plasticizing capability are obtained.

Description

technical field [0001] The invention relates to the injection molding field, in particular to an injection molding screw for an injection molding machine. Background technique [0002] Injection molding is an important method of thermoplastic molding, and the injection screw is the key component of the plasticizing part of the screw-type injection molding device. It rotates in the barrel of the injection molding machine, and its main function is to transfer solid plastic particles or plastic The powder is conveyed, compacted, melted and plasticized, homogenized, stored and measured. [0003] In the general-purpose plasticizing screw of the existing injection molding machine, its plasticizing ability and mixing ability are mainly improved by changing the structural parameters of the screw thread, that is, the geometric size parameters, such as changing the length-to-diameter ratio, the pitch of each section of the screw, and the screw screw. Ridge width, screw groove depth a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/60
CPCB29C45/60
Inventor 周喜峰周皓黄印
Owner JIANGSU HONGYUAN NEW MATERIAL TECH
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