Combination manufacturing method and device for injection mold with conformal cooling water path

A conformal cooling, injection mold technology, applied in the direction of improving process efficiency, improving energy efficiency, etc., can solve the problems of inability to process molds that meet the requirements of dimensional accuracy and surface roughness, difficulty in machining conformal molds, and inability to add supports. , to expand the application possibilities, shorten the mold making time, and achieve good high-speed cutting accuracy.

Active Publication Date: 2013-12-04
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

[0013] Although laser selective melting technology has many advantages, compared with traditional machined parts, the surface quality of its formed parts is poor
When forming complex shapes, it is necessary to add support, but when processing the inner cavity cooling water channel of the confo

Method used

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  • Combination manufacturing method and device for injection mold with conformal cooling water path
  • Combination manufacturing method and device for injection mold with conformal cooling water path

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Embodiment

[0045] like figure 1 , figure 2 shown. The present invention has a compound manufacturing equipment for conformal cooling waterway injection molds, including a beam focusing system, a near-wavelength coaxial visual positioning system, a powder laying system, and a gas protection system;

[0046] The beam focusing system includes a fiber laser 1, a beam expander 3, a scanning galvanometer 6, and an F-θ combination lens 7 sequentially connected in an optical path;

[0047] The near-wavelength coaxial vision positioning system includes a cutting processing system, a coating mirror 5, an industrial CCD4 and an illuminating device 9 for illuminating parts to be processed; the coating mirror 5 is arranged on the beam expander 3 and the scanning vibrator In the optical path between the mirrors 6; the industrial CCD4 is arranged on the top of the coated reflective mirror 5;

[0048] The powder laying system includes a molding cylinder 15, a powder spreading scraper 13, a powder cy...

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Abstract

The invention discloses a combination manufacturing method and device for an injection mold with a conformal cooling water path. The device comprises a light beam focusing system, a close wave length coaxial vision positioning system, a powder pavement system and a gas protection system. The gas protection system comprises a sealed forming chamber, a shielding gas device and a powder purification device, wherein the shielding gas device is connected to one side of the sealed forming chamber, and the powder purification device is connected to the other side of the sealed forming chamber. The method is a combination processing method combined with the laser region selection fusion technology and the precision cutting processing technology, the advantages of the laser region selection fusion flexible processing are retained, and the feature that the precision of the high-speed cutting processing is good is given to play. In the process of region selection laser fusion processing, laser surface refusion processing is carried out on each layer, and the compactness and the surface quality of the mold are improved. The technique of density changing rapid manufacturing is adopted, and manufacturing efficiency is improved. Precision mold components with the interior special-shape cooling water path and the complex inner cavity structure can be integrally processed at a time.

Description

technical field [0001] The invention relates to laser selective melting technology, in particular to a compound manufacturing method and equipment for an injection mold with a conformal cooling waterway. Background technique [0002] Injection mold is a tool for producing plastic products. It is a device that injects resin material into a metal model to obtain a product with a certain shape. There are also devices such as cooling passages and heaters that allow cooling liquid (warm water or oil) to pass through the mold. During the production process, the material that has become a melt is injected into the main channel, and injected into the mold cavity through the runner and the gate. After the cooling stage, the mold is opened, and the ejector device in the mold ejects the ejector rod to push out the product. [0003] The technologies currently used to process injection molds include traditional machining techniques such as milling and wire cutting. Injection molds pro...

Claims

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Application Information

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IPC IPC(8): B23P9/02B22F3/105
CPCY02P10/25
Inventor 王迪杨永强刘睿诚宋长辉
Owner SOUTH CHINA UNIV OF TECH
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