A racket manufacturing process

Abstract

The present application relates to the technical field of racket manufacturing, and discloses a racket manufacturing process, comprising the following steps: cutting the foaming agent, with the cutting length ranging from 670 mm to 690 mm; cutting the carbon cloth, with the cutting length ranging from 680 mm to 700 mm; rolling the foaming preform together with the carbon cloth to obtain a preform strip; and preparing a hollow T head through injection molding, and adding aerogel into the hollow of the T head. The racket made by the present application has more reasonable overall weight distribution, reduced weight at the three-way joint, larger bending when hitting the ball, increased speed of the badminton, and good feeling of the user.

Description

Technical Field

[0001] This invention relates to the field of racket manufacturing technology, specifically a racket manufacturing process. Background Technology

[0002] Traditionally, foamed badminton rackets use T-joints made of ordinary plastic or metal to connect the three-way joint. In racket design, more materials are added at the three-way joint to ensure its breaking strength.

[0003] For example, an existing patent (publication number: CN103055476A) discloses a method for manufacturing a racket frame, including the following steps: (1) prefabricating the frame part and the middle tube part; (2) wrapping an expanded fiber tape around the joint between the frame part and the middle tube part, the expanded fiber tape including fiber cloth and foam film, and wrapping a tightening tape to completely cover the expanded fiber tape; (3) placing it in an oven for heating, the foam film expands due to heat and is squeezed between the tightening tape and the fiber cloth, so that the fiber cloth is pressed onto the outer wall surface of the frame part and the middle tube part for shaping; (4) peeling off the tightening tape; The manufacturing method of the present invention uses the expansion of the foam film from small to large volume to form external pressure, which can fundamentally avoid the previous sand inclusion problem, eliminate the need to level the racket frame, improve the production efficiency, and avoid the phenomenon of fiber cloth breaking due to improper leveling, ensure connection strength, improve the molding quality of the final product, and eliminate the need to use molds, making the manufacturing simpler, lower in cost, and more efficient.

[0004] In the process of realizing this invention, the inventors discovered that at least the following problems in the prior art have not been solved: However, when the prior art is used, the material itself has disadvantages such as large mass and poor shock absorption, resulting in poor feel and slow smash speed when athletes and consumers use the racket. Summary of the Invention

[0005] The purpose of this invention is to provide a racket manufacturing process to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a racket manufacturing process, comprising the following steps:

[0007] Cut the foamed preform;

[0008] Cut the carbon fiber cloth;

[0009] The foamed preform, together with the carbon cloth, is rolled into a preformed strip.

[0010] Hollow T-heads are prepared by injection molding, and aerogel is added inside the hollow T-heads.

[0011] The prefabricated strip and the middle tube are connected to the T-shaped connector, and the T-shaped connector is wrapped with carbon cloth to obtain the racket blank;

[0012] The prepared racket blanks are placed together in a mold, heated and kept warm to solidify the prefabricated strips into a racket frame. During the solidification process, the adjacent filling cores in the prefabricated strips are heated and foamed without gaps.

[0013] They made badminton rackets.

[0014] In a preferred embodiment of the present invention, the length of the foamed preform is between 670 and 690 mm.

[0015] In a preferred embodiment of the present invention, the cutting length of the carbon cloth is between 680 and 700 mm.

[0016] As a preferred embodiment of the present invention, the specific process of preparing a hollow T-head by injection molding and adding aerogel inside the hollow T-head is as follows: using nylon material as raw material, a hollow T-head is prepared by injection molding, and then white powdery aerogel is filled into the T-head.

[0017] As a preferred embodiment of the present invention, the specific process of connecting the prefabricated strip and the middle tube to the T-shaped connector and wrapping the T-shaped connector with carbon cloth is as follows: insert the two ends of the prefabricated strip into the T-shaped connector through the two ends of the T-shaped connector, insert the middle tube into the T-shaped connector through the bottom of the T-shaped connector, and then wrap the tee with different small yarns according to different frame types.

[0018] In a preferred embodiment of the present invention, the prefabricated strip is hollow at both ends. Before inserting the two ends of the prefabricated strip into the T-shaped connector through the two ends of the T-shaped connector, the strip is first heated. After the strip softens, it is pressed into an oval shape by an exhaust machine. Then the strip is attached to the prefabricated mold. Next, the two ends of the prefabricated strip are inserted into the T-shaped connector and tightened. Finally, different small yarns are used to wrap the tee according to different frame shapes.

[0019] In a preferred embodiment of the present invention, the length of the hollow ends of the prefabricated strip is 1 cm.

[0020] Compared with the prior art, the present invention provides a racket manufacturing process with the following advantages:

[0021] This new racket manufacturing process results in a more reasonable overall weight distribution, reduced weight at the three-way joint, greater bending during impact, increased shuttlecock speed, and a better user experience. Attached Figure Description

[0022] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0023] Figure 1 This is a process flow diagram of a racket manufacturing process according to the present invention. Detailed Implementation

[0024] To better understand the purpose, structure, and function of this invention, a racket manufacturing process of this invention will be described in further detail below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the present invention provides a technical solution: a racket manufacturing process, comprising the following steps:

[0026] S101, the foaming agent is cut to a length range of 670~690mm;

[0027] S102, cut the carbon cloth to a length range of 680~700mm;

[0028] S103, the foamed preform together with carbon cloth is rolled into a preformed strip;

[0029] S104, a hollow T-head is prepared by injection molding, and aerogel is added inside the hollow T-head;

[0030] S105, connect the prefabricated strip and the middle tube with the T-shaped connector, and wrap the T-head with carbon cloth to make the racket blank;

[0031] S106: The prepared racket blanks are placed together in the mold, heated and kept warm to solidify the prefabricated strips into the racket frame. During the solidification process, the adjacent filling cores in the prefabricated strips are heated and foamed without gaps.

[0032] S107 was used to make badminton rackets.

[0033] In this embodiment, the specific process of preparing a hollow T-head by injection molding and adding aerogel inside the hollow T-head is as follows: the T-head is made of nylon, a hollow T-head is prepared by injection molding, and then white powdery aerogel is filled into the T-head.

[0034] In this embodiment, the specific process of connecting the prefabricated strip and the middle tube to the T-shaped connector and wrapping the T-shaped connector with carbon cloth is as follows: insert the two ends of the prefabricated strip into the T-shaped connector through the two ends of the T-shaped connector, insert the middle tube into the T-shaped connector through the bottom of the T-shaped connector, and then wrap the tee with different small gauze according to different frame types.

[0035] In this embodiment, the prefabricated strip is hollow at both ends, with a hollow length of 1cm. This reduces weight and allows space for aerogel to be added. Before inserting the two ends of the prefabricated strip into the T-shaped connectors, the strip is first heated and softened. Then, an exhaust machine is used to press the strip into an oval shape. The strip is then attached to the prefabricated mold. Next, the two ends of the prefabricated strip are inserted into the T-heads and tightened. Finally, different small gauzes are used to wrap the tee according to different frame shapes.

[0036] To demonstrate the performance of the racket manufactured in this embodiment, the performance of rackets manufactured using conventional methods and those manufactured using this invention was tested. As shown in the table below, it can be proven that the racket manufactured by this invention has a more reasonable overall weight distribution, reduced weight at the three-way joint, greater bending upon impact, increased shuttlecock speed, and a better user experience.

[0037] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A racket manufacturing process, characterized in that: Includes the following steps: Cut the foamed preform; Cut the carbon fiber cloth; The foamed preform, together with the carbon cloth, is rolled into a preformed strip. Hollow T-heads are prepared by injection molding, and aerogel is added inside the hollow T-heads. The prefabricated strip and the middle tube are connected to the T-shaped connector, and the T-shaped connector is wrapped with carbon cloth to obtain the racket blank; The prepared racket blanks are placed together in a mold, heated and kept warm to solidify the prefabricated strips into a racket frame. During the solidification process, the adjacent filling cores in the prefabricated strips are heated and foamed without gaps. To produce badminton rackets; The length of the foamed preform is between 670 and 690 mm. The cutting length of the carbon cloth is between 680 and 700 mm; The specific process of preparing a hollow T-head by injection molding and adding aerogel inside the hollow T-head is as follows: using nylon material as raw material, a hollow T-head is prepared by injection molding, and then white powdery aerogel is filled into the T-head.

2. The racket manufacturing process according to claim 1, characterized in that: The specific process of connecting the prefabricated strip and the middle tube to the T-shaped connector and wrapping the T-shaped connector with carbon cloth is as follows: insert both ends of the prefabricated strip into the T-shaped connector through both ends of the T-shaped connector, insert the middle tube into the T-shaped connector through the bottom of the T-shaped connector, and then wrap the tee with different small gauze according to different frame types.

3. The racket manufacturing process according to claim 2, characterized in that: The prefabricated strip is hollow at both ends. Before inserting the two ends of the prefabricated strip into the T-shaped connector through the two ends of the T-shaped connector, the strip is first heated. After the strip softens, it is pressed into an oval shape by an exhaust machine. Then the strip is attached to the prefabricated mold. Next, the two ends of the prefabricated strip are inserted into the T-head and tightened. Finally, different small yarns are used to wrap the tee according to different frame shapes.

4. The racket manufacturing process according to claim 3, characterized in that: The prefabricated strip has hollow ends, each 1 cm in length.

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