Method for producing cloth-plastic hot water bag

Abstract

The invention discloses a method for producing a cloth-plastic hot water bag, which comprises the procedures of material taking, laminating, thermal binding, branching, sealing, plug holder injecting, assembling and the like; compared with the traditional production method, a secondary injection molding of an outer sleeve of a threaded plug holder is to form two symmetrical polyvinyl chloride lugs on the outer wall of the outer sleeve of the threaded plug holder; the two polyvinyl chloride lugs are used as filler to fill gaps between the threaded plug holder and the thermal-bound edge of a bag opening, and finally an integral structure is formed in a high-frequency thermal binding manner, so that the connection strength of the threaded plug holder and the inner layer of the bag opening isimproved, the occurrence of water and gas leakage can be avoided, and the product percent of pass and product service life can be improved. In addition, the adoption of a mechanical manufacturing mode can improve the working efficiency while saving the labor cost.

Description

technical field [0001] The invention relates to a processing method for a hot water bottle, in particular to a processing method for improving product efficiency and product quality. Background technique [0002] As a heating tool, hot water bag has been favored by people for a long time because of its small size, easy to carry, good heating effect and other advantages. Existing hot water bag mainly comprises several types of common plastic hot water bag, cloth plastic hot water bag and electric hot water bag. Ordinary rubber hot water bottles produce rubber odor after heating, and dissipate heat quickly; electric hot water bags are not accepted by people because of potential safety hazards. The advent of cloth-plastic hot water bags overcomes the above-mentioned shortcomings of ordinary rubber hot water bags and electric hot water bags, and is favored by consumers. [0003] The structure of the cloth-plastic hot water bag and the processing method of the cloth-plastic hot...

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Problems solved by technology

[0003] The structure of the cloth-plastic hot water bag and the processing method of the cloth-plastic hot water bag are recorded in the invention patent document of ZL2006100497005. However, in the production process of the product, there are two deficiencies: first, the hot water bag produced by the above method has a screw plug The connection between the seat and the bag mouth often leaks due to weak bonding, resulting in a decline in product quality, and even a low product pass rate during product testing, all due to insufficient bonding strength between the threaded plug seat and the inner layer of the hot water bag mouth

Through repeated observation and experimental research by technicians, it was found that the reason for the above problems is that when the hot water bag mouth and the hot water bottle threaded plug seat are assembled and thermally bonded, a high-frequency thermal bonding edge of the bag mouth and the threaded plug seat are formed at the contact point. There is a large gap, but there is not enough PVC filler on the PVC composite layer of the threaded plug seat to fill it and thermally bond it, resulting in low connection strength at the joint, and even insufficient filling, resulting in air leakage and water leakage

Second, in the prior art, since the threaded plug cover is directly set on the hard threaded plug seat by manual setting, the disadvantage of this structure is that when the hot water bottle cover plug and the plug seat are connected by threading, it is easy to The plug seat is directly pulled out from the threaded plug seat casing through the cover plug, which will cause the hot water bag to be scrapped, or easily cause scalding accidents

Especially after adding hot water to soften the cover of the threaded plug seat, the accident rate is higher; at the same time, when the threaded plug cap is tightened, the hard threaded plug seat will rotate together with the plug cap, resulting in a tight seal between the threaded plug seat and the plug cap. cooperation, resulting in water leakage

Third, due to the need to manually cut the hot water bag separately, it also needs to be trimmed and other fine processing; the production efficiency is low and the labor cost is high

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