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Method of welding hanging ring of large transfusion PP bottle

A large infusion and hanging ring technology, applied in applications, household appliances, and other household appliances, can solve problems such as the center of the bottom, bottle scrapping, elastic deformation, etc., and achieve the effect of standard shape, quality assurance, and good rigidity

Active Publication Date: 2012-07-04
HUNAN CHINASUN PHARMA MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Welding lifting rings with this method has the following disadvantages: during the blow molding process, it is inevitable that a small part of the top of the bottom of the bottle is not centered or even skewed, so it is difficult to realize automatic operation; some bottles are so skewed that the top of the bottom is so serious that it is impossible to place the lifting ring. The bottle is scrapped; at the same time, due to the poor rigidity of the bottle, elastic deformation is easy to occur when the welding pressure is applied, which affects the welding quality

Method used

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  • Method of welding hanging ring of large transfusion PP bottle
  • Method of welding hanging ring of large transfusion PP bottle
  • Method of welding hanging ring of large transfusion PP bottle

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Embodiment Construction

[0017] The method for the welding suspension ring of the large transfusion PP bottle of the present invention, its technological step is: first figure 2 , 3 Shown suspension ring 2 is welded on the bottle blank 3 before blow molding (seeing Figure 5 ) on the top of the bottom, as Image 6 As shown, due to the shape specification of the preform 3 shaped by the injection mold, the center of the lifting ring 2 is easy to align with the top of the bottom, and because the rigidity of the preform 3 is better, the welding quality is also good; The preform 3 is heated, and then the preform 3 is blow-molded into a large transfusion PP bottle 1 that is welded with a suspension ring 2. Figure 4 shown.

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Abstract

The present invention discloses a method for making hanging ring be welded on the large-infusion PP bottle. Said method includes the following steps: (1), firstly, welding the hanging ring on the top point of bottom portion of bottle blank which is not blown; and (2), heating bottle blank, then blowing said bottle blank so as to obtain the invented large-infusion PP bottle.

Description

technical field [0001] The invention belongs to the field of large infusion of PP bottles, and in particular relates to an improvement in the way of welding and hanging rings of PP bottles of large infusion. Background technique [0002] At present, the method of welding the lifting ring of the large infusion PP bottle is: first Figure 5 The preforms shown are heated and then blow molded as figure 1 As shown, then weld the lifting ring to the top of the bottom of the bottle, such as Figure 4 shown. Welding lifting rings with this method has the following disadvantages: during the blow molding process, it is inevitable that a small part of the top of the bottom of the bottle is not centered or even skewed, so it is difficult to realize automatic operation; some bottles are so skewed that the top of the bottom is so serious that it is impossible to place the lifting ring. Cause the bottle to be scrapped; at the same time, due to the poor rigidity of the bottle, elastic de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/00B29C65/00B29C49/00B29K23/00B29L22/00
Inventor 刘祥华黄盛秋
Owner HUNAN CHINASUN PHARMA MASCH CO LTD
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