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Blow molding apparatus and blow molding method

一种吹塑成型、预成型件的技术，应用在其他家里用具、家里用具、家用元件等方向，能够解决温度不均匀、预成型件温度不均、无法同时成型满足多个树脂容器等问题，达到温度状态优化的效果

Active Publication Date: 2020-04-21
NISSEI ASB MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature of each of the plurality of preforms at the time of ejection from the injection mold is usually not uniform, and the temperature is often not uniform within one preform.
Due to such uneven temperature of the preform, it may not be possible to form the desired thickness distribution and appearance of the resin container as the final molded product.
That is, it may not be possible to simultaneously mold multiple resin containers that meet customer specifications and have the same quality due to uneven temperature of preforms

Method used

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  • Blow molding apparatus and blow molding method
  • Blow molding apparatus and blow molding method
  • Blow molding apparatus and blow molding method

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Embodiment Construction

[0037] An embodiment of the present invention will be described in detail below with reference to the drawings.

[0038] First, an example of the shape of the resin container formed by the blow molding apparatus and the blow molding method of this embodiment will be described.

[0039] Such as figure 1 As shown, the resin container 1 is a small and lightweight container made of synthetic resin such as polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), and used for storing beverages, for example. A resin container (small and lightweight container) 1 has a neck (mouth) 2 provided at the upper end, a substantially cylindrical main body 4 continuous from the neck 2 via a shoulder 3 , and a bottom closing the bottom of the main body 4 5. In addition, a support ring 6 is provided on the outer peripheral surface of the neck 2 in the vicinity of the boundary between the neck 2 and the shoulder 3 . In addition, the above-mentioned resin container 1 sets the di...

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Abstract

A temperature adjusting part 40 inserts a temperature adjusting rod 42 into a preform 10 and brings the temperature adjusting rod 42 in contact with the inner surface of a body 12 of the preform 10 while preserving a boundary section with a neck 11. Thereafter, the temperature adjusting part 40 moves the temperature adjusting rod 42 by a prescribed distance D1 toward a bottom surface (lower body)12c side of the body 12 so as to extend the preform 10.

Description

technical field [0001] The present invention relates to a blow molding apparatus and a blow molding method for molding a resin container, for example, to a blow molding apparatus capable of molding a resin container having a good wall thickness distribution and appearance even under high cycle conditions with a very short molding cycle time. Molding device and blow molding method. Background technique [0002] Conventionally, as a blow molding device for resin containers, there is a cold parison type device that temporarily cools a preform to room temperature and then heats it for blow molding, and there is a device that does not make the preform that has been injection molded It is a hot parison type (one platform type) device that uses the retained heat (internal heat) during injection molding to perform blow molding instead of cooling to room temperature. [0003] Compared with the blow molding apparatus of the cold parison system, such a hot parison type blow molding ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/64B29C49/06B29C49/10
CPCB29C49/06B29C49/6463B29C49/02B29C2049/023B29C49/12B29K2067/003B29K2023/06B29K2023/12B29L2031/712B29C2949/0771Y02P70/10B29C49/6445
Inventor 丸山淳一
Owner NISSEI ASB MASCH CO LTD
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