Resin molding rubber mold, resin molding device, and resin molding method

A technology for resin molding and rubber molds, which is applied in the fields of rubber molds for resin molding, resin molding devices and resin molding. It can solve the problems of severe thermal aging and achieve the effects of improving dimensional accuracy, simple structure, and stable dimensional accuracy.

Inactive Publication Date: 2011-09-28
TECHNO POLYMER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, molding dies made of rubber such as silicone rubber are made of rubber, so they undergo severe thermal aging after molding thermoplastic resins. For example, when used for dozens of injections (molding), it is necessary to to replace

Method used

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  • Resin molding rubber mold, resin molding device, and resin molding method
  • Resin molding rubber mold, resin molding device, and resin molding method
  • Resin molding rubber mold, resin molding device, and resin molding method

Examples

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Embodiment

[0077] Next, embodiments of the rubber mold for resin molding, the resin molding apparatus, and the resin molding method of the present invention will be described with reference to the drawings.

[0078] Such as Figure 1 to Figure 4 As shown, the rubber mold 2 for resin molding of this example forms a cavity 213 for pressurizing and filling the thermoplastic resin 5 in a molten state. The rubber mold 2 is composed of a core box 21 made of a rubber material and forming a cavity 213 and a base mold 22 made of a rubber material and having a structure 220 in which the core box 21 is disposed. shape. The core box 21 combines a plurality of divided mold parts 211 (a pair of divided mold parts 211 in this example) on a parting surface 212 for opening a cavity 213 . The base model 22 has at least a lower surface portion 221 and a pair of first side surfaces 222 erected from two opposite sides of the lower surface portion 211, and the pair of first side surfaces 222 are formed on a p...

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Abstract

A resin molding rubber mold (2) comprises a cavity (213) into which a pressurized molten thermoplastic resin is placed. The rubber mold (2) comprises a core mold (21) consisting of a rubber material and having the cavity (213) formed therein, and also comprises a base mold (22) consisting of a rubber material and having a shape for allowing the core mold (21) to be placed in the base mold. The core mold (21) is formed by combining together a pair of split molds (211) along split surfaces (212) for opening the cavity (213). The base mold (22) has a lower surface section (221) and a pair of first side surface sections (222) which are formed on both sides of the direction in which the pair of split molds (211) is combined together.

Description

technical field [0001] The present invention relates to a rubber mold for resin molding for obtaining molded articles of thermoplastic resin, a resin molding device, and a resin molding method. Background technique [0002] As a method of obtaining a resin molded article of a predetermined shape from a thermoplastic resin, there are generally various molding methods such as injection molding, blow molding, extrusion molding, and press molding. [0003] In contrast, for example, Patent Document 1 discloses a resin molding method in which a resin molded article made of a thermoplastic resin is molded by vacuum injection molding using a molding die (rubber mold) made of rubber such as silicone rubber. The molding die can selectively heat the thermoplastic resin. In this resin molding method, when filling a molten thermoplastic resin into the cavity of a molding die, the thermoplastic resin is irradiated through the molding die with electromagnetic waves including a wavelength ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/40B29C33/06B29C45/26B29C45/46
CPCB29C2035/0822B29C35/0888B29C35/0894B29C2035/1616B29C37/006B29C33/405
Inventor 栗原文夫高见正光
Owner TECHNO POLYMER CO LTD
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