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Air blowing hot wedge and heating method and using method thereof

A heating method and hot wedge technology, applied in the field of hot melt welding, can solve the problems of easy diffusion of heat in hot air welding, easy generation of bright edges around welding, large volume of hot wedge welding, etc., to improve welding quality, low noise, and welding efficiency high effect

Pending Publication Date: 2020-05-08
CHANGZHOU RUFA MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a blowing hot wedge and its heating method and use method to solve the problem that the existing hot air welding heat is easy to spread and bright edges are easily produced around the welding; the traditional hot wedge welding has large volume and low temperature resistance, and the welding inefficient technical issues

Method used

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  • Air blowing hot wedge and heating method and using method thereof
  • Air blowing hot wedge and heating method and using method thereof
  • Air blowing hot wedge and heating method and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Such as figure 1 and figure 2 As shown, the blowing wedge of this embodiment includes a heat wedge body, and the heat wedge body includes a welding part 1 and a heat receiving part 2 . The heating part 2 is hollow to form a hot air chamber 3 , the hot air chamber 3 has an air inlet end 4 and an air outlet end 5 , the air inlet end 4 is connected to the air inlet pipe, and is suitable for penetrating the air heated by the air inlet pipe into the hot air chamber 3 . The heating part 2 is provided with a baffle 10, which is suitable for preventing the hot air discharged from the air outlet 5 from blowing directly on the materials to be welded, so as to avoid the phenomenon of wrinkling, deformation and bright edges of the materials. The welding part 1 is suitable for receiving the heat conducted by the hot air chamber 3, so as to melt and weld the two materials to be welded passing through the entrance of the pressurizing part of the hot air welding machine. The welding...

Embodiment 2

[0057] Such as Figure 5 As shown, the present invention provides another optional implementation of the hot air chamber 3 .

[0058] The difference from Example 1 is:

[0059] The inner wall of the hot air chamber 3 is fixedly provided with a heat conduction plate 9 , and the heat conduction plate 9 divides the hot air chamber 3 into an air inlet channel 321 and an air outlet channel 323 . The air inlet channel 321 is connected to the air inlet end 4 , and the air outlet channel 323 is connected to the air outlet end 5 . A bent channel 322 is formed between the front end of the heat conducting plate 9 and the welding part 1 , and the bent channel 322 communicates with the air inlet channel 321 and the air outlet channel 323 . The hot air chamber 3 is divided into an air inlet passage 321, a bending passage 322 and an air outlet passage 323 by the heat conduction plate 9, the path length of the hot air passing through the hot air chamber 3 is increased, and the time for the ...

Embodiment 3

[0064] Such as Figure 1 to Figure 4 As shown, on the basis of Embodiment 1, this Embodiment 3 provides a heating method for blowing hot wedges, using the blowing hot wedges in the above-mentioned Embodiment 1.

[0065] The heated air in the air inlet pipe penetrates into the air inlet channel 311 from the air inlet end 4, and is diverted by the heat conducting block 8, and a part of the hot air passes through the upper bending channel 312 and the upper air outlet channel 313 in sequence, and then is discharged through the upper air outlet hole 501 . Another part of the hot air passes through the lower bending channel 314 and the lower air outlet channel 315 in turn, and then is discharged through the lower air outlet hole 502 . During the operation of the hot air, the heat-receiving part 2, the upper heat-conducting plate 6, the lower heat-conducting plate 7 and the heat-conducting block 8 fully absorb a large amount of heat and conduct it to the welding part 1 for thermal f...

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Abstract

The invention belongs to the technical field of hot melting welding, and particularly relates to an air blowing hot wedge and a heating method and a using method thereof. The air blowing hot wedge comprises a hot wedge body, wherein the hot wedge body comprises a welding part and a heated part, the heated part is hollow to form a hot air cavity, and the hot air cavity is provided with an air inletend and an air outlet end; and the welding part receives heat conducted by the hot air cavity so that two to-be-welded materials penetrating through an inlet of a pressurizing part of a hot air welding machine can be subjected to hot melting welding. According to the heating method, the air blowing hot wedge is adopted, and the heating method comprises the following steps that air heated from theoutside penetrates into the hot air cavity from the air inlet end and is discharged through the air outlet end to form a hot cycle; and in the circulating operation process of hot air, the heat of the hot air is conducted to the welding part of the air blowing hot wedge so that the two to-be-welded materials can be subjected to hot melting welding through the welding part. According to the air blowing hot wedge and the heating method and the using method thereof, the welding heat is obtained through heat conduction, the hot air is not directly blown to the materials, the heat output is concentrated, the materials are prevented from being wrinkled and deformed, the bright edges of the periphery are prevented from being welded, and the welding quality is high; and the size is small, the heat transmission is high, and the welding efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of hot-melt welding, and in particular relates to a blowing heat wedge, a heating method and a using method thereof. Background technique [0002] With the continuous improvement of living standards, products made of soft materials such as PVC\TPU\PE are becoming more and more diversified and refined. For welding of soft materials, a hot air unit is usually used to blow hot air on the place to be welded, see patent CN109070485A. Both edge members formed on the edge of the brushed cloth are thermally welded by spraying hot air to the upper and lower parts around the edge of the brushed cloth at the same time and then applying pressure with a pressure roller. The hot air in this welding method is easy to diffuse, and the hot air sprays in a wide range, which makes the material easy to wrinkle and deform, and bright edges are easy to appear around the welding area, which affects the welding quality. Moreover,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/10
CPCB29C65/103
Inventor 邢兆良
Owner CHANGZHOU RUFA MACHINERY CO LTD
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