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Manufacture technology of PU (poly urethane) dumbbell ball or dumbbell piece with colorful logo

A production process, technology of dumbbell balls, applied in the direction of dumbbells, heavy objects, etc., can solve problems such as peeling, affecting the appearance and durability of products, and achieve the effects of easy operation, improved quality and grade, and easy to fall off

Inactive Publication Date: 2013-03-27
NANTONG BAOPENG FITNESS EQUIP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PU dumbbell balls or barbells are the most popular in the field of fitness equipment, but at present, most of the colorful logos on PU dumbbells or barbells are fixed by surface printing and labeling, and some even peel off, which seriously affects the beauty and durability of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A manufacturing process of a PU dumbbell ball with a colorful logo. Firstly, the shape of the logo is engraved in the mold, and then the blank of the dumbbell ball is placed in the mold. After the solidified layer is formed on the surface of the colored polyurethane material, add liquid polyurethane production material into the mold until the mold is full, close the mold after the solidified layer is formed on the surface of the polyurethane production material, and then vulcanize at a high temperature of 100°C for 40 minutes. Then the mold is opened, and the finished product is obtained after cooling and trimming.

[0012] The blank of the dumbbell ball in this embodiment is first welded to the handle and the steel dumbbell head, and then wrapped with a polyurethane layer. This method makes the product more firm, and the handle and the dumbbell head are not easy to loosen.

Embodiment 2

[0014] A manufacturing process of a PU barbell with a colorful logo. First, the shape of the logo is engraved in the mold, and then the blank of the barbell is placed in the mold, and then the colored polyurethane material that has been prepared is filled into the cavity of the logo. After the solidified layer is formed on the surface of the colored polyurethane material, add liquid polyurethane production material into the mold until the mold is full, and close the mold after the solidified layer is formed on the surface of the polyurethane production material, and then vulcanize at a high temperature of 80°C for 50 minutes. Then the mold is opened, and the finished product is obtained after cooling and trimming.

Embodiment 3

[0016] A manufacturing process of a PU dumbbell ball with a colorful logo. Firstly, the shape of the logo is engraved in the mold, and then the blank of the dumbbell ball is placed in the mold. After the solidified layer is formed on the surface of the colored polyurethane material, add liquid polyurethane production material into the mold until the mold is full, close the mold after the solidified layer is formed on the surface of the polyurethane production material, and then vulcanize at a high temperature of 120°C for 30 minutes. Then the mold is opened, and the finished product is obtained after cooling and trimming.

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PUM

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Abstract

The invention discloses a manufacture technology of a PU (poly urethane) dumbbell ball or dumbbell piece with a colorful logo. The manufacture technology is characterized by comprising the following steps of: firstly, carving a required logo shape in a mould, putting a blank of the dumbbell ball or the dumbbell piece into the mould, filling the color-mixed color pigment into a carved logo-shaped cavity, adding liquid polyurethane production material into the mould after a solidified layer is formed on the surface of the color pigment, assembling the mould after a solidified layer is formed on the surface of the polyurethane production material, carrying out a high-temperature vulcanization working procedure, opening the mould after the high-temperature vulcanization, cooling, and finishing to obtain a finished product. The manufacture technology provided by the invention is simple in technology, and easy to operate, and an integrated structure is formed by the colorful logo and the PU dumbbell ball or dumbbell piece, so that the problem that the colorful logo is easy to fall off can be effectively solved, and the quality and the level of the product can be improved.

Description

technical field [0001] The invention relates to a manufacturing process of PU dumbbell balls or barbell plates, in particular to a manufacturing process of PU dumbbell balls or barbell plates with colorful logos. Background technique [0002] PU dumbbell balls or barbells are the most popular in the field of fitness equipment, but at present, most of the colorful logos on PU dumbbells or barbells are fixed by surface printing and labeling, and some even peel off, which seriously affects the beauty and durability of the product. . Therefore, a new technical solution is needed to solve the above technical problems. Contents of the invention [0003] The purpose of the present invention is to provide a manufacturing process of PU dumbbell balls or barbell plates with colored logos. the quality of. [0004] The technical solution adopted by the present invention to solve the problems of the technologies described above is: [0005] A manufacturing process of PU dumbbell ba...

Claims

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Application Information

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IPC IPC(8): A63B21/072
Inventor 宗国兵
Owner NANTONG BAOPENG FITNESS EQUIP TECH
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