Quick heating and quick cooling highlight molding die

A rapid cooling and rapid heating technology, which is applied in the field of molding molds for plastic products, can solve problems such as uneven gloss, flow marks, and influence on appearance quality of products, and achieve the effect of ensuring uniform appearance quality and gloss

Inactive Publication Date: 2010-06-09
CHINA HUALU PANASONIC AVC NETWORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the arrangement and number of gate points on the mold and the structure of the product itself, during injection molding, the melt flowing into the cavity may meet in two or more directions. If there is a temperature drop, there will be weld marks, flow marks, etc., which will make the gloss of the product uneven and affect the appearance quality

Method used

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  • Quick heating and quick cooling highlight molding die
  • Quick heating and quick cooling highlight molding die

Examples

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Embodiment Construction

[0010] like figure 1 As shown: 1 is a fixed mold, which is located below; 6 is a movable mold, which is located above the lower mold 1.

[0011] A cooling block 2 with a cooling liquid channel 3 is fixedly installed on the inner side of the fixed mold 1, that is, at the bottom of the inner cavity. There is a floating insert 4 above the cooling block 2, and a workpiece cavity is formed between the floating insert 4 and the movable mold 6. .

[0012] A coaxial nut hole 13 and a limit hole 8 are processed on the floating insert 4. The diameter of the limit hole 8 is smaller than the diameter of the nut hole 13. The limit hole 8 is located below the nut hole 13. In the limit hole 8 and the junction of nut hole 13 form a step. A spring hole 10 is processed on the cooling block 2 .

[0013] There is an elastic piece between the floating insert 4 and the cooling block 2 to maintain the gap 14 between the two, the elastic piece is a spring 9, the spring 9 is located in the spring h...

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Abstract

A quick heating and quick cooling highlight molding die comprises a fixed die (1) and a movable die (6) matched with the fixed die (1) and positioned above the fixed die (1). The highlight molding die is characterized in that the inside bottom of the fixed die (1) is provided with a cooling block (2) with a cooling liquid passage (3), a floating insert (4) is arranged above the cooling block (2), the inside of the floating insert (4) is provided with a heater (5), and a workpiece die cavity is formed between the floating insert (4) and the movable die (6); an elastic piece for keeping a clearance (14) between the floating insert (4) and the cooling block (2) is arranged between the floating insert (4) and the cooling block (2); and a director is arranged between the floating insert (4) and the cooling block (2). During injection molding, the die has certain temperature so as to ensure that a melting material does not produce melting marks and flowing marks during flowing and butting in the die cavity, and meanwhile ensure the appearance and quality of the product so that the surface luster of the product is even and consistent; and maintaining the pressure after injection, the product can be quickly cooled and timely molded.

Description

technical field [0001] The invention relates to a molding die for plastic products, in particular to a fast heating and fast cooling highlight molding die. Background technique [0002] In the production of plastic products, the injection machine is often used to inject melt raw materials into the cavity of the molding mold, and after maintaining the pressure, the mold is opened to take out the molded products. According to the arrangement and number of gate points on the mold and the structure of the product itself, during injection molding, the melt flowing into the cavity may meet in two or more directions. If there is a temperature drop, there will be weld marks, flow marks, etc., which will make the gloss of the product uneven and the appearance quality will be affected. Contents of the invention [0003] The purpose of the present invention is to provide a rapid heating and rapid cooling high-gloss forming mold without weld marks, flow marks, uniform surface gloss a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/02B29C33/30B29C45/26B29C45/73
Inventor 孙先伟赵宏宇褚雁鹏
Owner CHINA HUALU PANASONIC AVC NETWORKS
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