Process for manufacturing dumbbell and barbell products

Abstract

The invention relates to a process for manufacturing dumbbell and barbell products. A material obtained by mixing iron powder and a binding agent is pressed into the shapes of barbell products, or the material obtained by mixing the iron powder and the binding agent is filled into a mould cavity produced according to the shapes of the barbell products, the expected shapes, dimensions and weights are achieved, and sizing, demoulding and air drying are carried out, thus specific products are obtained. The process is simple and easy to operate, the product cost is moderate, the density is moderate, and the produced products can substitute dumbbells, dumbbell discs, barbells, barbell discs, kettle bells or counter weight rods made by a mixture of cast iron and cement.

Description

Technical field: [0001] The invention relates to a manufacturing method of sports products, in particular to a manufacturing process of bar and dumbbell products. Background technique: [0002] There are mainly two types of manufacturing techniques for dumbbells, dumbbell plates, barbells, barbell plates, kettlebells or weight bars for existing sports products on the market: 1. Cast iron; 2. First make dumbbells, dumbbell plates, A plastic shell in the shape of a barbell, plate, kettlebell, or weight bar, filled with cement mixture to the desired weight. [0003] The above-mentioned cast iron dumbbells, dumbbell plates, barbells, barbell plates, kettlebells or weight bars have high production costs. During the casting process, the size and weight of the products are not easy to control, the quality is not stable enough, the scrap rate is high, and the environment is polluted. High energy consumption. Dumbbells, dumbbell plates, barbells, barbell plates, kettlebells or weig...

AI Technical Summary

Problems solved by technology

[0003] The above-mentioned cast iron dumbbells, dumbbell plates, barbells, barbell plates, kettlebells or weight bars have high production costs. During the casting process, the size and weight of the products are not easy to control, the quality is not stable enough, the scrap rate is high, and the environment is polluted. high energy consumption

Dumbbells, dumbbell plates, barbells, barbell plates, kettlebells or weight bars filled with cement mixture are relatively cheap to produce, but because the density of the filler cement mixture is too small, dumbbells, dumbbell plates, barbells, barbells of the same weight specification Plates, kettlebells or weight bars increase the volume a lot, which is less convenient to use

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