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Manufacturing method for multiple sprue bushes

A manufacturing method and runner technology, which are applied in the field of manufacturing multiple runner sleeves, can solve the problems of difficult cooling and solidification, difficult cooling and solidification of molten resin raw materials, and increased influence.

Inactive Publication Date: 2019-03-01
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, if the tapered raw material resin flow path 10' becomes longer, the influence on the downstream side with a relatively wider width W' will increase accordingly, and the molten resin raw material will become more difficult to cool and solidify.
If the molten resin raw material is difficult to cool and solidify, the time required from injecting the molten raw resin to taking out the molded product will increase, resulting in a longer molding cycle

Method used

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  • Manufacturing method for multiple sprue bushes
  • Manufacturing method for multiple sprue bushes
  • Manufacturing method for multiple sprue bushes

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Embodiment Construction

[0030] Hereinafter, an embodiment of the present invention will be described in more detail with reference to the accompanying drawings. The shape and size of each element in the drawings are examples only, and do not reflect the actual shape and size.

[0031] Before describing the manufacturing method of a plurality of sprue bushings, the configuration of the sprue bushing (single) capable of properly cooling the molten resin raw material in the raw material resin flow path as a whole and its manufacturing method will be described.

[0032] [Construction of sprue bushing (single)]

[0033] In one embodiment of the present invention, each of the finally obtained sprue bushings is manufactured based on the technical idea of ​​being composed of at least two parts (the base part and the molding part). The base mentioned here essentially refers to the existing sprue bushing. Since the base substantially refers to a conventional sprue bushing, the base can be used as a component...

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Abstract

In order to provide a method for precisely manufacturing, at substantially the same timing, multiple sprue bushes capable of suitably cooling the entirety of a molten resin raw material in a raw material resin flow path, one embodiment of the present invention provides a manufacturing method for multiple sprue bushes, the method comprising setting respective molding parts on multiple base parts, wherein: each of the multiple base parts includes a raw material resin flow path, and a cooling medium flow path provided around the raw material resin flow path; and, prior to setting of the molding parts, the respective positions of the multiple base parts are specified on a virtual XY-coordinate plane on the basis of positional information about at least the raw material resin flow path or the cooling medium flow path.

Description

technical field [0001] The invention relates to a method for manufacturing a plurality of sprue sleeves. More specifically, the present invention relates to a method of manufacturing a plurality of sprue bushings for molds. Background technique [0002] Molding technology using molds is one of the technologies supporting Japan's manufacturing industry. Examples of the molding technique include press molding, injection molding, extrusion molding, and the like. Among these molding methods, the injection molding method is a method of obtaining a molded article by melting a resin raw material using a mold for injection molding. [0003] In the injection molding method, a molten resin raw material is injected into a mold cavity 203 composed of one mold (core side mold) 201' and the other mold (cavity side mold) 202' of the injection mold 200'. 'within (refer to Figure 11 ). The injected molten resin material is cooled and solidified in the mold cavity 203' to form a molded p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/38B22D17/22B22F3/105B22F3/16B29C45/27
CPCB22D17/22B22F3/105B22F3/16B29C33/38B29C45/27
Inventor 渡边真也阿部谕森干夫大原健人
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD