Injection mould with specially-shaped conformal cooling water channel and manufacturing method thereof

A conformal cooling, injection mold technology, applied in the directions of additive manufacturing, process efficiency improvement, energy efficiency improvement, etc., can solve the problems such as the inability to realize the processing of the inner hole of the cooling water channel and the inability to adapt to the molding volume, and achieve the simple and feasible process of burying the pipe. , the effect of increasing the disturbance and enhancing the heat transfer effect

Inactive Publication Date: 2014-11-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the technical problem that the inner hole processing of the three-dimensional curve of the cooling water channel and the selective laser melting molding technology

Method used

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  • Injection mould with specially-shaped conformal cooling water channel and manufacturing method thereof
  • Injection mould with specially-shaped conformal cooling water channel and manufacturing method thereof
  • Injection mould with specially-shaped conformal cooling water channel and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] like Figure 2 to Figure 6 As shown, an injection mold with a special-shaped conformal cooling water channel includes a mold body 2 provided with a cavity 4, and the mold body 2 is embedded with a conformal cooling water channel 1 that is consistent with the contour of the cavity 4, The distance between the conformal cooling water channel 1 and the surface of the cavity 4 is 1 to 2 times the diameter of the cooling water channel, which is 1 time in this embodiment; Bellows, Scaled Tubular or Grooved Tubular. The conformal cooling water channel 1 in this embodiment adopts a special-shaped water channel, thereby increasing the disturbance of the cooling medium in the cooling water channel, easily forming turbulent flow, enhancing the heat transfer effect, improving the heat dissipation performance of the mold, and preventing the product from warping due to uneven cooling. Quality issues.

Embodiment 2

[0029] A manufacturing method of an injection mold with a special-shaped conformal cooling water channel, comprising the steps of:

[0030] In step 1, the metal powder material is manufactured into a conformal cooling water channel 1 by using the selective laser melting molding technology. Figure 3 to Figure 6 );

[0031] Step 2: Fix the conformal cooling water channel 1 in the casting cavity 3 for casting the mold body 2 (see figure 1 );

[0032] In step 3, the molten aluminum alloy is cast to form the mold body 2 (see figure 1 ), low carbon steel or zinc alloy can also be used as required;

[0033] In step 4, a cavity 4 is machined on the mold body 2 by machining (see figure 2 ).

[0034] In the present invention, the cross-sectional shape of the conformal cooling water channel 1 can adopt the shape of equal cross-section, and can also adopt the shape of special-shaped and deformed cross-section. Figure 2 to Figure 6 Structure.

[0035] The above-mentioned steps of...

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Abstract

A disclosed injection mould with a specially-shaped conformal cooling water channel comprises a mould body provided with a cavity, and the mould body is inside provided with the inbuilt conformal cooling water channel with the profile phase consistent with that of the cavity. The invention also provides a manufacturing method for the injection mould with the specially-shaped conformal cooling water channel. The method comprises the steps: employing a selective laser melting molding technology to manufacture the conformal cooling water channel from a metal powder material; fixedly arranging the conformal cooling water channel in a casting chamber for casting the mould body; employing a casting molding technology to cast the molded mould body from melt single metal or metal alloy; and processing the cavity in the mould body. The conformal cooling water channel is manufactured by directly employing the selective laser melting molding technology, and the manufacturing process is not influenced by the complexity of the conformal cooling water channel. The cooling water channel employs a specially-shaped water channel, so that a turbulent flow is easily formed, the heat conduction effect is enhanced, and processing is convenient.

Description

technical field [0001] The invention relates to a mold structure, in particular to an injection mold with a special-shaped conformal cooling water channel and a manufacturing method thereof. Background technique [0002] The cooling system of the injection mold plays a very important role in the structure of the injection mold, and is the key to improving the quality of injection molding products and improving the efficiency of injection molding. The traditional cooling water channel is generally composed of a group of straight opening passages. In order to form a closed flow channel, except for the inlet and outlet, other openings need to be sealed with plugs. This cooling technology has the following problems: (1) Due to the limitation of the processing technology, the cooling water channel cannot be set as required, resulting in low cooling efficiency and poor cooling effect. For molds with complex cavities, the straight hole system cannot ensure uniform cooling of all p...

Claims

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Application Information

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IPC IPC(8): B29C45/73B29C45/26B29C33/04B22F3/105B22F5/12B22D19/00
CPCB22D19/00B29C45/2602B29C45/7312B29C2033/042B29C2045/7318B29C2045/7362B22F10/00B22F10/28Y02P10/25
Inventor 刘斌陈昌乾吴成龙
Owner SOUTH CHINA UNIV OF TECH
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