Plastic container welding and sealing method
A technology of plastic container and welding sealing is applied in the field of welding and sealing the shell of chemiluminescence device, which can solve the problems of poor sealing, weak combination of plastic sealing cover and plastic container, time-consuming welding and sealing method, etc.
Inactive Publication Date: 2007-12-19
柯曾平
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Problems solved by technology
[0002] The existing method of sealing the opening of the plastic container is to directly melt and close the material at the opening end of the plastic container and then seal it. This method of sealing is easy to produce a small hole in the center of the seal after welding. Another sealing method is A plastic sealing cap is directly welded to the opening of the plastic container. This welding method is time-consuming, and only the plastic sealing cap is simply welded to the opening of the plastic container. The combination of the plastic sealing cap and the plastic container is not firm. , the seal is often not tightly sealed
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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] As shown in Figure 1, it is a plastic container 1 that needs to be welded to seal the opening. The opening end of the container is provided with two flanges, and two plastic sealing covers 2 are respectively embedded in the two flanges, and its purpose is to seal the opening more tightly. Tight, and the seal is more beautiful after welding. In actual production, a plastic sealing cover can also be used. And in order to improve the sealing performance, also can adopt a plurality of plastic sealing caps. When there are multiple plastic sealing covers, there should be multiple flanges on the opening end of the plastic container. The flanges are arranged on the opening end of the plastic container from inside to outside and from bottom to top, so the plastic sealing covers are layered. , welded layer by layer.
[0023] As shown in Figure 2 is an example of the pl...
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The plastic container welding and sealing method has the technological scheme including adopting fixture with inside shape matching the outside of the plastic container to be welded and sealed; using heating plate as the main welding and sealing part of the apparatus; and the welding and sealing process comprising covering the plastic container cover, holding the plastic container with the fixture, setting the heating plate, heating and pressing the heating plate to melt the plastic in the seam, cooling the heating plate fast, eliminating the heating plate and the fixture to finish the welding and sealing. The method has short heating time and has sealing effect.
Description
technical field [0001] The invention relates to a method for welding and sealing a plastic container, especially a shell of a chemiluminescence device. Background technique [0002] The existing method of sealing the opening of the plastic container is to directly melt and close the material at the opening end of the plastic container and then seal it. This method of sealing is easy to produce a small hole in the center of the seal after welding. Another sealing method is A plastic sealing cap is directly welded to the opening of the plastic container. This welding method is time-consuming, and only the plastic sealing cap is simply welded to the opening of the plastic container. The combination of the plastic sealing cap and the plastic container is not firm. , The seal often appears to be lax. So people are always looking for a method for sealing plastic containers with short sealing time and good sealing effect. Contents of the invention [0003] The object of the pre...
Claims
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IPC IPC(8): B29C65/02B29C65/20
Inventor 柯曾平
Owner 柯曾平