Enclosed hot-air generator and plastic welding equipment
A hot air generator and closed technology, which is applied in the field of plastic welding, can solve the problems of poor fusion effect of thermoplastic welding process and low welding life, and achieve good welding melting effect, long service life and good welding effect
Active Publication Date: 2015-09-02
深圳市友通塑焊机械有限公司
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Problems solved by technology
[0005] The purpose of the present invention is to provide a closed hot air generator, which aims to solve the problems of poor fusion effect of thermoplastic welding process and low welding life in the prior art
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[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0012] In the accompanying drawings of this embodiment, only a schematic diagram of the relevant part of the present invention is shown. In practice, the closed hot air generator 1 also needs to be connected with an air pump structure that can continuously input air and an exhaust structure that can discharge high-temperature air to heat the workpiece. , the exhaust structure and the air pump structure can adopt mature prior art, and this embodiment will not describe in detail.
[0013] The implementation of the present invention will be described in detail below in conjunction with specific drawin...
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The invention relates to the technical field of plastic welding and discloses an enclosed hot-air generator and plastic welding equipment. The enclosed hot-air generator comprises a heating internal cylinder for heating air and a thermal insulation external cylinder which wraps the heating internal cylinder. A heating tube is arranged inside the heating internal cylinder. One end of the thermal insulation external cylinder is provided with an input end for inflow of air, and the other end of the thermal insulation external cylinder is provided with an output end for outflow of air. A gap is left between the heating internal cylinder and the thermal insulation external cylinder and is used for running-through and heating of air. A wind guide structure for increasing air travel is arranged inside the gap. The wind guide structure comprises multiple wind guide walls arranged inside the gap. Wind guide chambers for running-through of air are formed among the wind guide walls. The enclosed hot-air generator adopts a double-layered sleeve mode. Air is heated in the gap between the heating internal cylinder and the thermal insulation external cylinder. Hot-air is used as a heating medium to preheat a workpiece integrally. Thus, the purpose of reaching a good welding and fusion effect without leaving weld joints is achieved and finally welded products are firm.
Description
technical field [0001] The invention relates to the technical field of plastic welding, in particular to a closed hot air generator and plastic welding equipment. Background technique [0002] In the heat treatment process of thermoplastic welding of workpieces such as plastic parts, it is necessary to heat the workpiece to soften it and then weld it. In the prior art, aluminum or copper is generally used as the heat conduction medium, which is heated by a heating pipe, and the heated heat conduction medium directly contacts the workpiece to soften or melt, and then welding is performed. [0003] In this heating method, parts of the workpiece are directly melted at high temperature in a short period of time, and there is no preheating and softening process as a whole. After welding, only the melted part is attached to the surface of another workpiece. There is a gap between the welds, and the two workpieces cannot be integrated. . The two workpieces welded by this welding ...
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IPC IPC(8): B29C65/10
Inventor 刘永彥
Owner 深圳市友通塑焊机械有限公司