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Injection molded product ejection apparatus and method

A technology of ejection device and injection mold, applied in the field of ejection of injection molded products

Inactive Publication Date: 2016-07-06
FAURECIA INNENRAUM SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is only suitable for relatively simple injection molded products, such as diaphragm
It is not suitable for more complex injection molded products, for example, automotive interior parts with complex structures, such as speaker grilles

Method used

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  • Injection molded product ejection apparatus and method
  • Injection molded product ejection apparatus and method
  • Injection molded product ejection apparatus and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] refer to figure 1 , which illustrates a core part 2 of an injection molding mold according to the present invention. The injection molding mold also includes a cavity part (not shown) that is complementary to the core part. During product molding, the cavity part is lowered onto the core part and plastic material is injected between these two parts in order to produce the desired product.

[0027] exist figure 1 In the example shown, the core part is subdivided into a left side 4 and a right side 6 , which are symmetrical about the central axis 8 of the core part 2 . Each side defines a molding cavity 12 which is generally banana-shaped. Each molding cavity 12 is used to produce a duct cover for the interior of the vehicle.

[0028] The core part 2 comprises four regions 14 each defining a mold for shaping the loudspeaker grill inside the injection molded product. An injection molded product discharge device is provided under and inside the core part 2 .

[0029] ...

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PUM

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Abstract

An injection molded product ejection device (16) comprising: an ejection element (20) and a displacement member for moving the ejection element between a retracted molding position (P1) and a first extended ejection position , characterized in that the discharge element is a discharge assembly and includes: a) an inner discharge subassembly (26) and b) an outer discharge bushing (32) surrounding the inner discharge subassembly (26), said displacement member comprising : a common displacement member (40) and a subassembly displacement member (44, 48, 56), the common displacement member is used to move the entire ejection assembly from a retracted molding position to an intermediate ejection position, and the subassembly displacement member is used by using Extending the inner drain subassembly relative to the outer drain liner transitions the drain assembly from an intermediate drain position to a first extended drain position.

Description

technical field [0001] The invention relates to an injection molded product ejection device comprising an ejection element and a displacement member for moving the ejection element between a retracted molding position and a first extended ejection position, and to a A method of ejecting an injection molded product. Background technique [0002] Such a device and method are known from document JP2001239559. This document discloses an injection molding mold for producing loudspeaker diaphragms. The injection molding mold includes an ejection sleeve having a wider ejection surface than that provided by the ejection pin. When molding is complete, the loudspeaker diaphragm can be ejected from the injection molding mold without risk of diaphragm rupture due to the wider ejection surface. [0003] This known ejection system is an improvement over ejection systems using simple ejection pins. However, it is only suitable for relatively simple injection molded products, such as di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/40B29C33/44
CPCB29C45/401B29C2045/4063B29C2045/4057B29C45/40
Inventor M·利森
Owner FAURECIA INNENRAUM SYST