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Self-adaptive type waste end free nozzle structure of rubber injection machine

An adaptive injection machine technology, applied in the field of rubber injection machine nozzle structure, can solve the problems of head loss, poor adaptability, easy glue leakage, etc., and achieve the effect of simple structure, convenient disassembly and convenient replacement

Pending Publication Date: 2018-03-09
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the cold runner nozzle structures of rubber injection machines currently used are fixed. This type of nozzle structure has poor adaptability to the mold surface, and it is easy to leak glue. Early vulcanization affects the quality of rubber products
Some manufacturers have invented a rubber injection machine cold runner floating nozzle structure (patent number: 200910039212.X). Although it can automatically adjust the length of the nozzle and adapt to the surface of the mold, it also has certain shortcomings. When the nozzle is attached to the surface of the mold, the high temperature generated on the surface of the mold will transfer to the floating nozzle, so that the rubber material under the floating nozzle will be vulcanized prematurely due to high temperature and produce waste heads, which will affect the quality of the next mold product
Therefore, before each injection of the rubber material into the mold, the vulcanized rubber material at the lower part of the floating nozzle must be injected, which will cause material head loss

Method used

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  • Self-adaptive type waste end free nozzle structure of rubber injection machine
  • Self-adaptive type waste end free nozzle structure of rubber injection machine
  • Self-adaptive type waste end free nozzle structure of rubber injection machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Such as Figure 1-3 As shown, a rubber injection machine adaptive non-waste head nozzle structure includes a nozzle body 1, an adaptive nozzle 2, an elastic element 3, and a nozzle cover 4. The adaptive nozzle 2 and the elastic element 3 are set in the nozzle body 1; the nozzle body 1 and the nozzle sleeve 4 are connected together by threads.

[0018] The nozzle body 1 is provided with an external thread, and the nozzle sleeve 4 is provided with an internal thread, and the two are connected through threads; the nozzle body 1 and the self-adaptive nozzle 2 are in clearance fit, and the flow channels of the two are connected; the self-adaptive nozzle 2 is made of metal material.

[0019] The elastic element 3 can be compressed when the pressure increases, and can rebound automatically when the pressure decreases. When the rubber is injected, the elastic element 3 is compressed, and the adaptive nozzle 2 can automatically fit the surface of the mold; when the rubber is no...

Embodiment 2

[0022] The difference between this embodiment and this embodiment 1 is that, as Figure 4 As shown, the adaptive nozzle 2 is made of non-metallic materials with poor thermal conductivity such as nylon and ceramics. Others are the same as in Example 1.

Embodiment 3

[0024] The difference between this embodiment and this embodiment 1 is that, as Figure 5 As shown, the adaptive nozzle 2 is a combination of metal materials and non-metallic materials with poor thermal conductivity such as nylon and ceramics that are threaded together, wherein the lower part of the self-adaptive nozzle 2 is non-metallic materials with poor thermal conductivity such as nylon and ceramics, and the upper part is metallic material. Others are the same as in Example 1.

[0025] Apparently, the above-mentioned embodiments have described the specific implementation of the present invention in detail in conjunction with the accompanying drawings, which is only a preferred embodiment of the present invention, but the embodiments of the present invention are not limited by the above-mentioned embodiments, and the elastic element can also be The spring of 2 and the elastic damping pad are used together. At this time, the self-adaptive nozzle 2 can be a metal material, ...

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PUM

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Abstract

The invention discloses a self-adaptive type waste end free nozzle structure of a rubber injection machine. The self-adaptive type waste end free nozzle structure comprises a nozzle body, a self-adaptive nozzle, an elastic element and a nozzle sleeve, wherein the nozzle body sleeves the self-adaptive nozzle and the elastic element and is in threaded connection with the nozzle sleeve. By adopting the structure, the length of the nozzle is automatically adjusted to enable the nozzle to be in adaptive fitting to the surface of a mold, and the self-adaptive nozzle and the elastic element can be conveniently replaced; in addition, in the production process, the consequence that the quality of a next mold product is affected as a waste end is resulted from scorching as the temperature of rubberat the lower part of the self-adaptive nozzle is too high is avoided, rubber is saved, the rejection rate of rubber products is reduced, and the quality of rubber products is improved.

Description

technical field [0001] The invention relates to a rubber injection machine nozzle structure, in particular to a rubber injection machine self-adaptive non-waste head nozzle structure. Background technique [0002] Most of the cold runner nozzle structures of rubber injection machines currently used are fixed. This type of nozzle structure has poor adaptability to the mold surface, and it is easy to leak glue. Early vulcanization affects the quality of rubber products. Some manufacturers have invented a rubber injection machine cold runner floating nozzle structure (patent number: 200910039212.X). Although it can automatically adjust the length of the nozzle and adapt to the surface of the mold, it also has certain shortcomings. When the nozzle is attached to the surface of the mold, the high temperature generated on the surface of the mold will transfer to the floating nozzle, so that the rubber material at the lower part of the floating nozzle will be vulcanized prematurel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/20
CPCB29C45/20B29C2045/205
Inventor 曾宪奎鲍丽苹
Owner QINGDAO UNIV OF SCI & TECH