Sprue puller and reflecting mirror mold

Pending Publication Date: 2018-06-29
HASCO VISION TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problem that BMC injection molding products are easy to stick to the mold a

Method used

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  • Sprue puller and reflecting mirror mold
  • Sprue puller and reflecting mirror mold
  • Sprue puller and reflecting mirror mold

Examples

Experimental program
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Effect test

Example Embodiment

[0019] The present invention will be further described by way of examples below, but the present invention is not limited to the scope of the examples.

[0020] First of all, the present invention provides a pull rod

[0021] In Example 1, refer to figure 1 As shown, the pulling head at the top end of the pulling rod 1 is in the shape of a pagoda of several layers, and each layer is composed of a stepped column 11 connected by two large and small upper and lower cylinders. The top end is a conical apex 12.

[0022] Specifically, the longitudinal section of the conical apex 12 is an isosceles triangle, and the vertex angle of the isosceles triangle is 60 degrees. The edge of the top surface of each stepped column 11 is provided with a chamfer, and the chamfer is specifically 45 degrees.

[0023] Furthermore, the stepped columns 11 have three layers, and the diameters of the columns that are located at the same upper level in each layer of stepped columns decrease sequentially from bot...

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Abstract

The invention discloses a sprue puller and a reflecting mirror mold and belongs to the field of BMC (Bulk Molding Compound) injection molds. The sprue puller is characterized in that a material pulling head at the top end part of the sprue puller is in a pagoda shape with a plurality of layers; each layer consists of stepped columns formed by connecting two cylinders with large upper parts and small lower parts; the top end of the material pulling head is a conical spire. The sprue puller is arranged in the reflecting mirror mold; the bottom end of the sprue puller is movably arranged on the movable mold side; the top end part of the sprue puller penetrates through the movable mold side and extends into the fixed mold side. According to the sprue puller and the reflecting mirror mold disclosed by the invention, a product is pulled at the movable mold side by the material pulling head in the pagoda shape at the top end part of the sprue puller during mold opening, so that sticking of afixed mold is prevented; finally, the product is demolded by ejection of the movable mold.

Description

technical field [0001] The invention relates to the field of injection molds, in particular to a pulling rod and a mirror mold. Background technique [0002] BMC material is the abbreviation of Bulk molding compounds, that is, bulk molding compound, which is often called unsaturated polyester bulk plastic mold in China, and has good physical properties, electrical properties and mechanical properties. The BMC injection mold is somewhat different from the usual thermoplastic and thermosetting injection molding, mainly because the shrinkage rate of BMC is low, which is only one-third of the dryness. [0003] Because BMC bulk molding compound has excellent electrical properties, mechanical properties, heat resistance, chemical corrosion resistance, and adapts to various molding processes, it can meet the performance requirements of various products, so it is more and more popular among users. favorite. [0004] In the automotive industry, BMC is also widely used, such as larg...

Claims

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Application Information

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IPC IPC(8): B29C45/26B29C45/40
CPCB29C45/2602B29C45/40
Inventor 苗蓓蕾刘俊麟李明
Owner HASCO VISION TECHNOLOGY CO LTD
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