Time-delay drawing protection technical apparatus for injection mold slide block thimble and inclined jacking block thimble

A technology of injection mold and technical device, which is applied in the field of delayed extraction protection technical device for injection mold slider thimble and inclined top block thimble, which can solve problems such as unacceptable customer acceptance, unsatisfactory demoulding effect, and complex mold structure.

Inactive Publication Date: 2008-12-03
NINGBO YUEFEI MOLD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the actual application of the above-mentioned existing technical solutions, there are problems such as complex mold structure, increased cost, and the actual demoulding effect may not be ideal, which makes it difficult for customers to accept

Method used

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  • Time-delay drawing protection technical apparatus for injection mold slide block thimble and inclined jacking block thimble
  • Time-delay drawing protection technical apparatus for injection mold slide block thimble and inclined jacking block thimble
  • Time-delay drawing protection technical apparatus for injection mold slide block thimble and inclined jacking block thimble

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Embodiment Construction

[0021] refer to figure 1 , Fig. 2, Fig. 3, a kind of injection mold slide block thimble and slanted ejector block thimble delay drawing protection technical device of the present invention comprises ejector pin 1, spring 2, time-delay straight face 3, reset slope 4, stopper 5, wherein: The thimble 1 is made of wear-resistant metal, one end face is a spherical end, the other end end is a curved end made according to the curved shape of a plastic product, and a retaining ring step is provided near the spherical end The cylindrical parts; the spring 2 is a cylindrical compression spring; the delay straight face 3 is located on the cavity plate 02 or the movable mold insert 07, parallel to the opening and closing direction of the fixed and movable molds, A section of straight slideway for the spherical end of ejector pin 1 to slide; the slope 4 is provided on the cavity plate 02 or the movable mold insert 07, one end intersects with the delay straight surface 3 and the other end c...

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Abstract

The invention discloses a technical device for protecting delayed pulling of a slider push rod and an ejector cam insert push rod of an injection mold. The device comprises a push rod (1), a spring (2), a delayed straight plane (3), a reset inclined plane (4) and a check block (5). The device adopts demoulding technical proposal of transverse delayed pulling consisting of the push rod, the spring, the straight plane and the inclined plane; in the pulling movements of a transverse mechanism of an injection molded part, the push rod is used to support the injection molded part to force the injection molded part and a slider or an ejector cam insert to loose and delay, so as to guarantee products are not damaged in the transverse demoulding process. The device solves the problems that the mould has a complicated structure and high cost, and actual demoulding effect is not ideal, etc. because the prior art adopts the technical proposals that a secondary transverse pulling mechanism such as an oil cylinder is adopted, demoulding inclination of the injection molded part is increased and demoulding is carried out through exhaust, etc. The device achieves the aims of simple and reliable mechanism, low cost, ideal demoulding effect and suitability for applying injection molds with difficult demoulding; meanwhile, the device has universal meaning for technical progress of injection mold demoulding.

Description

technical field [0001] The invention relates to a demoulding technology for injection molds, specifically refers to an injection mold slider thimble and inclined ejector block applied to injection molds with relatively complex lateral projection surfaces, more reinforcement ribs, and greater wrapping force of plastic parts Thimble delay pull protection technology device. Background technique [0002] Plastic products have been widely used in various industries and daily necessities, and the quality of plastic products is closely related to injection molds. Usually, if the plastic product has a horizontal pull-out structure, the injection mold will use an inclined top block or a slider mechanism to realize demoulding. When the shape of the horizontal projection surface is relatively complex, there are many reinforcing ribs, and the plastic product has a large tightening force, if the injection mold is demolded by using the usual inclined top block or slider mechanism, during...

Claims

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Application Information

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IPC IPC(8): B29C45/42
Inventor 魏军辉
Owner NINGBO YUEFEI MOLD
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