Method for ultrasonic welding plastic products

A technology of ultrasonic welding and plastic products, which is applied in the field of ultrasonic welding of plastic products, can solve the problems of overflowing glue, product deformation, and weak welding of products, and achieve the effect of increasing the welding area and overcoming glue overflowing

Active Publication Date: 2009-01-07
惠州市盈旺精密技术股份有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

This ultrasonic connection method has problems such as the ultrasonic line is easy to slip and overflow glue, resulting in weak welding of the product, overflow glue, product deformation, etc.

Method used

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  • Method for ultrasonic welding plastic products
  • Method for ultrasonic welding plastic products
  • Method for ultrasonic welding plastic products

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Embodiment Construction

[0019] See figure 1 , Figure 2 and Figure 3, figure 1 It is a schematic diagram of a partial exploded three-dimensional structure of an embodiment of the present invention. Figure 2 is figure 1 A schematic diagram of a longitudinal section. Fig. 3 is a schematic structural diagram of Fig. 2 after combination. The present invention is applicable to the method on the product that two plastic parts 1, 2 are integrated by ultrasonic welding, if it is in the battery industry, it is suitable for the ultrasonic welding between the upper shell and the lower shell of the plastic casing of the pouch battery.

[0020] The steps of the method of the present invention are as follows: on the first bonding surface 11 of the first plastic part 1, there is at least one ultrasonic line 12 arranged in a line and extending downward at a certain interval H, each ultrasonic line 12 The lower part of the wedge-shaped ultrasonic line melting head 13; on the second bonding surface 21 of the sec...

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Abstract

The invention relates to a method for welding plastic products by utilizing ultrasonic waves, which comprises the following steps: a plurality of ultrasonic rays are arranged on the first bonding surface of a first plastic part, and a wedge-shaped ultrasonic ray melting head is arranged at the lower part of each ultrasonic ray; an ultrasonic groove is arranged on the second bonding surface of a second plastic part, and the bottom surface of the ultrasonic groove is a surface inclined downwards; the first plastic part and the second plastic part are respectively installed in a die, the ultrasonic rays of the first plastic part are inserted into the ultrasonic groove of the second plastic part, and a certain number of gaps for containing rubber are reserved in the ultrasonic groove; an ultrasonic generator is started, the ultrasonic ray melting head of the ultrasonic rays of the first plastic part is melted in the ultrasonic groove of the second plastic part, and the first plastic part and the second plastic part are connected into a whole. The method has the advantages that the ultrasonic rays can be guided to be well melted and connected with the ultrasonic groove, and thus the purpose of firmly welding the two connected plastic parts is achieved; in addition, because of the melting gaps, the problems of rubber leak and distortion are overcome.

Description

technical field [0001] The invention relates to a method for welding plastic products by using ultrasonic waves. Background technique [0002] The connection between the existing two plastic parts, such as the connection between the upper case and the lower case of the plastic case of the pouch battery, generally adopts ultrasonic melting connection, the usual way of ultrasonic melting connection, please refer to Figure 6 , Fig. 7 and Fig. 8, all are first in a plastic part 100 in two plastic parts 100, 200 (if it is a battery casing, the two plastic parts 100, 200 refer to the upper shell or the lower shell respectively) An ultrasonic line 110 is provided on the fitting surface 130, and an ultrasonic groove 210 is arranged on the fitting surface 230 of another plastic part 200. The bottom surface 220 of the ultrasonic groove 210 is a flat bottom; In the respective molds (not shown), insert the ultrasonic wire 110 of the plastic part 100 into the ultrasonic groove 210 of an...

Claims

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Application Information

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IPC IPC(8): B29C65/08
Inventor 鄢启洪
Owner 惠州市盈旺精密技术股份有限公司
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