Double-layer extrusion blow molding machine die head

A double-layer extrusion and blow molding machine technology, applied in the field of the double-layer extrusion blow molding machine die, can solve the problems of uneven thickness of the container, complicated transparent line process, inability to make transparent lines, etc., so as to avoid uneven distribution. Effect

Inactive Publication Date: 2014-12-10
ZHANGJIAGANG PUXIN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Traditional extrusion blow molding machines usually have the following problems: 1. Only single-layer containers can be produced; 2. The thickness of the produced containers is uneven; 3. It is impossible to make transparent lines or the process of making transparent lines is complicated

Method used

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  • Double-layer extrusion blow molding machine die head
  • Double-layer extrusion blow molding machine die head
  • Double-layer extrusion blow molding machine die head

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Experimental program
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Embodiment Construction

[0028] The technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0029] ginseng figure 1 As shown, the blow molding machine die head includes a storage barrel 1, and the storage barrel 1 has a cavity with an open bottom.

[0030] A storage core 2 is arranged in the cavity of the storage tube 1 along the axial direction, and the top end of the storage core 2 is fixed on the storage tube 1 . An annular actuating space and an annular storage space 11 are enclosed between the storage core 2 and the inner wall of the storage bar...

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Abstract

The invention discloses a double-layer extrusion blow molding machine die head. The double-layer extrusion blow molding machine die head comprises a material storage cylinder, wherein a material storage core is arranged in a cavity of the material storage cylinder in the axis direction; a sliding space is formed in the middle part of the material storage core in the axis direction; an adjusting rod is slidably arranged in the sliding space; the top end of the adjusting rod is fixed with a servo cylinder; the bottom end of the adjusting rod is fixed with a die core; a middling ring, a material injection piston and an outer layer sleeve are sequentially arranged on the outer side of the material storage core in a sleeving manner and positioned in an actuation space; a first runner space is formed between the middle ring and the material storage core; a second runner space is formed between the outer layer sleeve and the inner wall of the material storage cylinder; the bottom ends of the first runner space and the second runner space are communicated to a material storage space. The double-layer extrusion blow molding machine die head is simple in structure and capable of manufacturing double-layer plastic containers with uniform thickness.

Description

technical field [0001] The invention belongs to the field of hollow blow molding, in particular to a die head of a double-layer extrusion blow molding machine. Background technique [0002] Blow molding (blowmoulding), also known as hollow blow molding, is a rapidly developing plastic processing method. The tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold while it is hot (or heated to a softened state), and compressed air is injected into the parison immediately after the mold is closed to blow the plastic parison. It swells and clings to the inner wall of the mold, and after cooling and demoulding, various hollow products can be obtained. [0003] Extrusion blow molding machine is a combination of extruder, blow molding machine and mold clamping mechanism. It is composed of extruder, parison die head, inflation device, mold clamping mechanism, parison thickness control system and transmission mechanism. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C49/48B29C49/42B29C49/04
Inventor 杨德刚陆胜钱伟
Owner ZHANGJIAGANG PUXIN MACHINERY
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