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A polymer mold insert for an injection molding tool

An injection molding, polymer technology, applied in general control systems, adaptive control, control/regulation systems, etc., can solve problems such as high production costs

Pending Publication Date: 2020-11-06
LEGO AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As a result, typical injection molding tools are expensive to produce, but are critical to the quality of injection molded parts

Method used

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  • A polymer mold insert for an injection molding tool
  • A polymer mold insert for an injection molding tool
  • A polymer mold insert for an injection molding tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] figure 1 An embodiment of a polymer mold insert is schematically shown. figure 1 The mold insert comprises two parts 2 and 3 which respectively define a mold cavity 1 for molding a part 4, in this example a plastic toy construction element.

[0030] The two parts 2, 3 of the polymer mold insert each have an outer surface that fits into the insert cavity of an injection molding tool (not shown). Mold inserts of this type are well known in the prior art, in particular made of steel or another metal, and the structure and design of the mold insert as well as the injection molding tool and the method for inserting the mold insert in the injection molding tool Means for holding in place are known in various embodiments of existing tool structures.

[0031] figure 2 shows a cross-section through an injection molding tool 5 equipped with figure 1 Part of the polymer mold insert 2 shown. The injection molding tool 5 is equipped with a set of cooling channels 6 and an inse...

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PUM

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Abstract

A polymer mold insert (2) for an injection molding tool (5), the polymer insert (2) comprising an insert body part having an outer shape adapted for insertion into an insert cavity (7) arranged in theinjection molding tool (5), and where the insert body part comprises at least two different polymer materials having different physical characteristics and being distributed within the insert body sothat one or more first volumes (8) of the insert body comprises a higher concentration of a first one of the two different polymer materials than in the remaining parts insert body, and so that one or more second volumes (9) of the insert body comprises a higher concentration of the second one of the two different polymer materials than in the remaining parts of the insert body part.

Description

technical field [0001] The present invention relates to a polymer mold insert for an injection molding tool. Background technique [0002] Injection molding is a widely used manufacturing process used to produce parts by injecting material into a mold. Injection molding can be done with a variety of materials including elastomers, thermoplastics and thermoset polymers. A typical injection molding process involves heating and melting the material, injecting the molten material into the mold cavity, allowing the injected material to cool and harden the configuration of the mold cavity, and ejecting the hardened part. [0003] Traditionally, once a part to be molded has been designed, usually by an industrial designer or engineer, a toolmaker designs and precision-machines a suitable mold from metal, such as steel or aluminum, to form the features of the designed part. The initial design and fabrication of molds using traditional mold insert manufacturing techniques is expens...

Claims

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Application Information

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IPC IPC(8): B29C33/38B29C33/04B29C45/26B29C33/40
CPCB29C33/38G05B13/04B29C33/3828B29C33/40B29C45/26B29C45/14
Inventor R.哈达尔V.帕特尔R.施利赫丁M.莫西里
Owner LEGO AS