Manufacturing method of badminton racket and badminton racket

Abstract

The invention discloses a manufacturing method of a badminton racket. The manufacturing method comprises the following steps: a racket frame core material is prepared; the racket frame core material is sleeved with a sleeve, and the sleeve is tightly attached to the outer surface of the racket frame core material; the prepreg is attached to the outer portion of the sleeve to form a prepreg pipe; the racket frame core material is taken out from the sleeve; the sleeve is taken out from the prepreg pipe; the prepreg pipe is uniformly filled with an expansion material; meanwhile, the invention further discloses the badminton racket manufactured through the method. According to the manufacturing method of the badminton racket and the badminton racket, wrinkles of reinforcing fibers at the racket frame can be reduced, stress concentration is reduced, the mechanical property and strength of the badminton racket are improved, the interlayer bonding strength of the racket frame part is improved, and the bonding strength and connecting stability between the racket frame and the middle tube of the badminton racket are improved; and therefore, the service life of the badminton racket is prolonged and the use experience is improved.

Description

technical field [0001] The invention relates to the field of sports equipment, in particular to a manufacturing method of a badminton racket and a badminton racket manufactured by the method. Background technique [0002] Badminton is a sport that can be played both indoors and outdoors. Usually two or four people are divided into two groups, and they take turns facing each other and hit the ball with feathers across the net in the middle of the court with a racket with a handle. A general badminton racket is composed of a racket frame, a middle tube, a front cover, a handle and other accessories. With the development of science and technology, the development of the racket is developing in the direction of lighter weight, harder racket frame and better shaft elasticity. [0003] The racket frame of badminton rackets generally uses thermosetting epoxy resin-based carbon fiber or glass fiber composite material as prepreg, and the prepreg is laminated on the long core material...

AI Technical Summary

Problems solved by technology

[0004] However, due to the soft texture of the foam material, it is difficult to accurately control the outer diameter of the racket frame, and the finished product is prone to problems such as infolding and loose bonding between layers.

The infolding of the prepreg will lead to the wrinkles of the reinforcing fibers (such as carbon fibers, glass fibers, etc.), which will form stress concentration, change the mechanical properties of the product, and reduce the mechanical properties and strength of the product.

If the joint between layers is not tight, a cavity will be formed inside the racket frame, which will reduce the strength of the joint between layers, which will easily cause delamination problems during the use of the racket product, which will directly affect the service life and use feeling of the racket

[0005] In addition, because the internal space of the tee where the racket frame is connected to the middle tube is relatively large, and as the connection part, the force here is also relatively large, which is prone to unstable connection problems, and will also affect the service life and usability of the racket

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