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Plastic foam three-dimensional rapid forming method and device based on column coordinate

A foamed plastic, cylindrical coordinate technology, applied in the direction of instruments, computer control, simulators, etc., can solve the problems of large shape accuracy error and low forming efficiency, and achieve the effect of reducing manufacturing cost and improving machining accuracy and efficiency.

Inactive Publication Date: 2009-03-18
XI AN JIAOTONG UNIV
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Especially for complex three-dimensional entities, it needs to be formed in blocks first, and then assembled, which has problems such as low forming efficiency and large error in shape accuracy.

Method used

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  • Plastic foam three-dimensional rapid forming method and device based on column coordinate
  • Plastic foam three-dimensional rapid forming method and device based on column coordinate
  • Plastic foam three-dimensional rapid forming method and device based on column coordinate

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Embodiment Construction

[0044] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0045] see figure 1 , figure 2 , image 3 The three-dimensional rapid prototyping equipment for foamed plastics of the present invention consists of a two-dimensional planar motion mechanism of an electric heating knife; a blank fixing and rotating mechanism; an auxiliary vertical rotating mechanism; an electric heating knife and a computer control system ( image 3 )composition.

[0046] The computer controls the two-dimensional (x, y) plane motion processing mechanism driven by six stepping motors; the rotatable blank 23 fixed mechanism driven by the rotary motor 2 realizes the rotation of the blank, and cooperates with the above-mentioned two-dimensional plane motion to form a machine controlled by the computer. The three-dimensional fixed-angle or fixed-thickness layered processing mode of the electric heating knife; the processing devi...

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Abstract

The invention discloses a three-dimensional rapid forming method for foamed plastics based on cylindrical coordinates and a device thereof. The method includes generating a processing rotation axis according to shape characteristics of a part, building up a cylindrical coordinate system with an origin of the coordinate arranged on the rotation axis, converting the CAD model in a rectangular coordinate system of the part into a model in the cylindrical coordinate system, further, cutting the model in the cylindrical coordinate system with the STL file format into layers according to a fixed angle or a fixed thickness to form a specific profile data of multi-cut-layers, controlling planar two-dimensional motion of a hot knife and motion of surrounding the rotation axis of a foamed plastic base by the rapid forming device according to the cutting-layer processing path under the control of a computer, performing non-contact gasified cutting layer by layer, and finally integrally forming a three-dimensional part in one step. The invention greatly reduces manufacturing cost and increases processing precision and efficiency of a single or small lot foamed plastic parts with complicate shapes.

Description

technical field [0001] The invention relates to a three-dimensional processing method and processing equipment for foamed plastic polymer material products applied in the fields of lost foam casting, advertisement, artistic modeling and decoration. Background technique [0002] Foam plastic polymer materials have the characteristics of low density, good thermal insulation performance, low hardness, good stability, low cost and easy forming. It is widely used in lost foam casting, mold manufacturing, advertising, artistic modeling, architectural decoration, film and theater props and packaging. [0003] At present, according to the batch size of foam plastic polymer material products, it can be divided into two categories: foam molding and processing molding. For mass production, metal molds are used for foam molding under high temperature and high pressure, and the molding precision is also high. However, metal molds need to be made during the molding process, and correspon...

Claims

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Application Information

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IPC IPC(8): G05B19/4099B26F3/06B26D5/00
Inventor 孙琨方亮蔡洪能赵嘉叶庆光
Owner XI AN JIAOTONG UNIV
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