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Cast hot runner manifold for injection molding appts

A molding device and header technology, applied in the field of casting hot runner headers, can solve problems such as weak joints, fractures, header failures, etc.

Active Publication Date: 2004-10-27
MOLD MASTERS 2007
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the joint between the two pipes may not be strong, may break under high temperature and pressure, and may cause main pipe failure

Method used

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  • Cast hot runner manifold for injection molding appts
  • Cast hot runner manifold for injection molding appts
  • Cast hot runner manifold for injection molding appts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] figure 1 It is a schematic side view of the hot runner device 100 according to an embodiment of the present invention. The device includes a sprue bushing 106, a hot runner manifold 101 and a nozzle 108. The manifold 101 is generally a manifold block 104 in which various components are cast. The manifold block 104 is made of metal conductors-such as copper or copper alloys (such as brass or bronze), aluminum or aluminum alloys, certain steel or steel alloys, and their combinations or may be obvious to those of ordinary skill in the art Other materials-made. The manifold 101 is manufactured by die casting, investment casting, and other suitable casting methods that allow solid formation. One element cast in the manifold 101 is the connecting piece 215. The connector 215 is made of tool steel (preferably H13 steel), or other materials that can maintain its shape without melting, bending or deforming during the casting process.

[0032] In an embodiment of the present invent...

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PUM

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Abstract

The present invention is an injection molding apparatus having a cast manifold. The manifold is made from a cast block and includes at least one pipe and a junction component fixed therein. The junction component has an axial bore having a first end and a second end, and at least one radial bore fluidly connected to the axial bore and having an opening to an outer surface of the junction component. A melt is introduced into the manifold and travels through the radial and axial bores of the junction component and through at least one pipe connected thereto to an injection molding nozzle for injection into a mold cavity. A manifold of the present invention may have a plurality of pipes and junction components to form a branched multi-level cast manifold.

Description

Technical field [0001] The invention relates to a casting hot runner manifold used in an injection molding device. Background technique [0002] The injection molding process keeps the molten thermoplastic material or melt in a molten state, so the melt can be injected into the mold cavity to form various products. During the entire injection molding process, the heat distribution of the melt must be maintained, which is to allow the melt to maintain its desirable properties, so as to produce qualified products. Generally speaking, the melt enters the injection molding manifold or hot runner manifold through the bushing, and is transported from the manifold to one or more injection molding nozzles or hot runner nozzles, and then injected into the cold cavity. [0003] The manifold used in the hot runner system must have reliable properties. For example, it must have good heat transfer characteristics and be able to withstand high temperatures and pressures. Therefore, a typical m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/27
CPCB29C45/2727B29C45/2725B29C45/2738
Inventor 约布斯特·乌尔里克·盖勒特丹尼斯·巴宾
Owner MOLD MASTERS 2007