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Post mold cooling method and device for molded article neck finishes

A cooling device and preform technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problem of directly cooling the outer surface of the neck of the preform without description, and achieve the effect of reducing the cycle time.

Inactive Publication Date: 2010-10-06
HUSKY INJECTION MOLDING SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the patent describes a number of methods of cooling the exterior of the preform, it does not describe any method of directly cooling the outer surface of the preform neck

Method used

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  • Post mold cooling method and device for molded article neck finishes
  • Post mold cooling method and device for molded article neck finishes
  • Post mold cooling method and device for molded article neck finishes

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Embodiment Construction

[0062] The invention will now be described with reference to the accompanying drawings.

[0063] As described more fully in U.S. Patent No. 6,171,541 and illustrated schematically in FIG. 36. The cavity plate 32 is in fluid communication with a manifold (not shown) which receives molten material from an injection device (not shown) of the injection molding machine. Through cavity inlet 40, cavity 34 receives molten material from a molten material distribution device, such as a valve controlled spout (not shown). Each cavity 34 is surrounded by a cooling device 42 for cooling molten material in the cavity space formed by the core 38 and the cavity 34 when the mold plates 32 and 36 are in the mold closed position. The cooling means 42 are preferably formed by cooling channels embedded in the mold plate 32 for conducting a cooling fluid. In the mold closed position, the core 38 and the cavity 34 form a plurality of cavity spaces (not shown), which are filled with molten materi...

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PUM

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Abstract

A cooling apparatus and method for the post mold cooling of injection molded articles where an exterior portion of the article is exposed to a cooling atmosphere separately from any other cooling of the article. More particularly, the external surface of a neck finish portion of a preform is cooled by means of a cooling fluid stream which is specifically directed at the external surface.

Description

technical field [0001] This invention relates generally to injection molding machines, and more particularly to a method of cooling molded parts from an injection molding machine. Background technique [0002] Injection molding machines are well known and there are many ways to cool preforms produced by such machines. The following references all disclose apparatus and methods for cooling such preforms. [0003] US Patent 4,449,913 to Krishnakumar et al. describes a turret molding machine in which the preform is first cooled to a solidified or crystalline state in an injection mold before it is removed from the mold cavity. When solidified, the preform is rotated to a cooling position where nozzles 54 direct coolant to the end of the preform to cool the preform from its end to the neck of the preform. After cooling, the preform is rotated to a conditioning mold 46 for final cooling of the preform. The core 26 is supplied with a coolant, ensuring radially outward cooling o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/72B29C35/16B29C45/17B29C45/78
CPCB29C2045/7264B29K2105/253B29C45/7207Y10S264/908
Inventor 蒂默·D·布兰德雅各布·雷贝尔
Owner HUSKY INJECTION MOLDING SYST LTD