Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of preparation method of table tennis

A table tennis ball and a preparation technology, applied in the field of sporting goods, can solve problems such as easy generation of air bubbles and stratification, difficult thickness control, cumbersome preparation methods, etc., and achieve easy control of thickness, easy control of uniformity, and streamlined manufacturing process Effect

Active Publication Date: 2018-01-16
杭州胜利体育用品有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the table tennis balls used in the market and in professional competitions are all made of flammable celluloid, and the preparation method is also very cumbersome. Waste liquid and waste gas will be generated during the production process, which will cause great pollution to the environment.
Moreover, during the preparation process, air bubbles and delamination are likely to occur in the product, and the thickness is not easy to control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of preparation method of table tennis, specifically comprises the following steps:

[0028] Step 1: pretreat the spherical shell material, and dry the material with a ventilated dryer for 2-4 hours at a temperature of 70-80 degrees.

[0029] In the present invention, the raw material is easy to absorb water. In an environment with a humidity greater than 30%, the water absorption of the raw material is large, which will cause the product to be not compact and have extremely small pores. The above-mentioned problems can be avoided by using a ventilated dryer to pretreat the raw materials first. For the pretreatment of the spherical shell material, use a ventilated dryer to dry the material, the drying time is 2-4 hours, and the temperature is 70-80 degrees.

[0030] Appropriate temperature and time have a great influence on the quality of the final table tennis balls. If the temperature is too low and the time is too long or too short, certain air bubbles will be...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for manufacturing a table tennis ball. A table tennis ball shell material is added to an injection molding machine, and fusion plastifying is carried out; the fused ball shell material enters a hot runner system, flows to a nozzle through a runner, and then is injected into a large semispherical die and a small semispherical die through the nozzle, natural cooling is carried out after injection, and a large semisphere and a small semisphere matched with the large semisphere are formed; then the yin semisphere and the yang semisphere are bonded through an adhesive, and after the adhesive is cured, excessive positions are cut off, and a ball blank is obtained; the ball blank is expanded in a die, and the expanded table tennis ball is polished in fine sand into the finished ball. Parameters of all sections of table tennis ball injection molding production are precisely controlled, a hot runner system is adopted, it is guaranteed that no waste gas or waste liquid is generated in the manufacturing process, and environment friendliness is achieved. The manufactured table tennis ball has no bubble, layering is avoided, the thickness is easy to control, and quality is high.

Description

technical field [0001] The invention belongs to sporting goods and relates to a preparation method of table tennis balls. Background technique [0002] Table tennis is a popular ball game in the world and is also the national ball game of the People's Republic of China. At present, the table tennis balls used in the market and in professional competitions are all made of flammable celluloid, and the preparation method is also very complicated. Waste liquid and waste gas will be generated during the production process, which will cause great pollution to the environment. . Moreover, during the preparation process, bubbles and delamination are easily generated in the product, and the thickness is not easy to control. Contents of the invention [0003] In order to solve the above problems, the present invention provides a method for preparing table tennis balls, which adopts a hot runner system and precisely controls the process parameters of each section to ensure that no ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/02B29C45/10B29C45/77B29C45/78B29C65/48B29B13/06
CPCB29B13/06B29C45/10B29C45/77B29C45/78B29C65/48B29C69/02B29C2945/76498B29C2945/76531B29C2945/76595
Inventor 蒋丁科
Owner 杭州胜利体育用品有限公司