Blowing mould used for blowing plastic hollow container

A technology of blow molding molds and empty containers, which is applied in the field of plastic product processing, can solve the problems of incomplete molding and uneven wall thickness, and achieve good results

Active Publication Date: 2015-04-15
SICHUAN KELUN PHARMA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the problems existing in the prior art, the object of the present invention is to provide a blow mold for blowing plastic hollow containers with an improved structure, which solves the problem of incomplete molding under the premise that the wall thickness of the hollow product is ≤0.20mm. , the technical difficulty of uneven wall thickness

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  • Blowing mould used for blowing plastic hollow container

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Embodiment Construction

[0016] The present invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0017] For ease of description, spatially relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature relative to another element or feature shown in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described ...

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Abstract

The invention discloses a blowing mould used for blowing a plastic hollow container. The mould comprises side moulds, a base mould and a base mould component guide rod. The side moulds include a left side mould and a right side mould, wherein a plurality of vent holes are arranged at the symmetric line of cavities of the two side moulds, used for exhausting air to the outside and arranged in the mould cavities to from vacuums. According to the blowing mould, technical difficulties that the molding is not full on the premises that the wall thickness of hollow products are smaller than 0.20mm, and the wall thickness is not uniform in two-step method injection, stretch and blow molding are overcome, and simultaneously, good effects for improving molding of hollow products with the thickness larger than 0.20mm are provided.

Description

technical field [0001] The invention belongs to the technical field of plastic product processing, and in particular relates to a mold structure for blowing plastic hollow container products, which is especially suitable for blowing plastic infusion bottles or plastic infusion bags. Background technique [0002] In the prior art, the molding processing methods of plastic blow molding hollow products mainly include two processes of "extrusion-blow" and "injection-blow". Products produced by the "extrusion-blowing" molding process have redundant leftovers, which increase production costs and waste of raw materials. There are irreversible protruding cracks on the surface, and the product surface is not beautiful and smooth. The "injection-blow" molding process is mostly used as a two-step injection stretch blow molding process. The specific operation method is to first use the injection molding machine and the injection mold to produce the parison, and the parison is naturally...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C49/48B29C49/62B29C49/64
Inventor 谭顺洪谭鸿波
Owner SICHUAN KELUN PHARMA CO LTD
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