Manufacturing method of plastic steel kettle dumbbell

Abstract

The invention discloses a manufacturing method of a plastic-steel kettle dumbbell. The innovation points of the manufacturing method are that the manufacturing method comprises a plastic-steel dumbbell body manufacturing step and a plastic-steel dumbbell body housing manufacturing step, wherein a plastic-steel dumbbell body is made of polyethylene and polypropylene that are taken as the main filler and a plastic-steel dumbbell body housing is made of a high-molecular polymer and an elastomer that are taken as main materials. Or, the method comprises a plastic-steel dumbbell body manufacturing step and a dumbbell body housing handle manufacturing step, wherein a plastic-steel dumbbell body is made of polyethylene and polypropylene that are taken as the main filler, a dumbbell body housing handle is formed through mould forming and electroplating of a seamless steel tube, and the root of the dumbbell body housing handle is wrapped in the plastic-steel dumbbell body to enable the dumbbell body housing handle to be connected with the plastic-steel dumbbell body integrally. Due to the adoption of the manufacturing method of the plastic-steel kettle dumbbell, a plastic-steel kettle dumbbell, which has the function the same as that of a casting iron kettle dumbbell, can be obtained, and the plastic-steel kettle dumbbell is low in manufacturing cost, has a simple structure, has the surfaces made of different plastics and in different colors, and is wide in variety, thereby meeting the requirements of all people. The plastic-steel kettle dumbbell, manufactured by the manufacturing method, is low in energy consumption, is pollution-free, and is an environment-friendly product. Elastomer is adopted for the manufacture of the housing of the plastic-steel kettle dumbbell, and the antislip function of the handle and the bottom are added, and the grade of the plastic-steel kettle dumbbell is improved through electroplating of the steel tube handle and the hammer paint spraying on the dumbbell body.

Description

technical field [0001] The invention relates to a method for manufacturing plastic-steel kettle dumbbells, and belongs to the technical field of sports fitness equipment. Background technique [0002] Dumbbell is a kind of simple equipment used to enhance muscle strength training, because there is no sound during training, it is named dumbbell. Blow-molded sand-filled dumbbells can be composed of plastic shells, cement-filled, yellow sand, ore sand. This kind of dumbbells has a simple structure and is easy to manufacture. However, during use, due to the impact force, the filler will loosen and fall off, which poses a certain safety hazard. [0003] The plastic steel kettle dumbbell is a kind of sports training equipment, which only uses the plastic steel kettle dumbbell training equipment to enhance muscle strength and abdominal training. The plastic steel kettle dumbbell is trained by a single. [0004] Most of the kettle dumbbells circulating on the market today are made...

AI Technical Summary

Problems solved by technology

[0004] Most of the kettle dumbbells in the market today are made of cast iron and blow-molded sand filling. The production process is complicated, the casting pollution is high, the resources are wasted, the cost is high, and the efficiency is low.

Blow-molded sand filling is not solid and bulky, and cannot meet the needs of different groups of people in the market. Cast iron is not suitable for home use. The surface of ordinary cast iron kettle dumbbells has no protective layer, and direct contact with the ground will cause damage to the ground or the floor.

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