CN114504780A

CN114504780A - Carbon fiber badminton racket and manufacturing method thereof

Info

Publication number: CN114504780A
Application number: CN202210298325.7A
Authority: CN
Inventors: 蔡人辉
Original assignee: Jiangsu Aodakang Composite Material Co ltd
Current assignee: Jiangsu Aodakang Composite Material Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2022-05-17

Abstract

The invention relates to a badminton racket and a manufacturing method thereof, belongs to the field of sports equipment, and particularly relates to a carbon fiber badminton racket and a method for manufacturing the badminton racket. A carbon fiber badminton racket is provided with a racket frame, wherein latticed and tightened racket strings are arranged in the racket frame, the tail end of the racket frame is rigidly connected with a racket rod, and the tail end of the racket rod is connected with a racket handle; a front sleeve is sleeved at the joint of the racket handle and the racket rod; the tail end of the racket handle is sleeved with a rear sleeve. The racket rod is provided with a rod body, the rod body is a solid or hollow pipe with filler, the upper end and the lower end of the rod body are respectively provided with an upper extension section and a lower extension section, and the racket rod is formed by solidifying carbon fibers; any one end of the upper extension section and the lower extension section can be an inwards concave hollow section or a solid section with a cylindrical protrusion. The upper extension section and the lower extension section of the racket rod are preferably concave hollow sections, so that the racket rod is easier to mortise and tenon mount when being assembled with the racket frame and the racket handle. The cross section of the racket rod is circular, oval or drop-shaped.

Description

Carbon fiber badminton racket and manufacturing method thereof

Technical Field

The invention relates to a badminton racket and a manufacturing method thereof, belongs to the field of sports equipment, and particularly relates to a carbon fiber badminton racket and a method for manufacturing the badminton racket.

Background

Badminton is a wide range of sports, and it is very important for a user to use a good badminton racket in the sports, and if a bad racket is used, the impact on the play feeling and mood of the user is very large, and even sports injuries can be caused, and what racket is good racket woolen, the racket with high speed, high stability, good strength conduction performance and small play vibration is the good racket. The industry has been working to design and manufacture a racquet for easy play to suit the needs of a wide range of users and badminton activities. Badminton is a wide range of sports, and for users, the quality of the racket often affects the level of the users; in actual sports, carbon fiber rackets are increasingly accepted by the market as high-grade rackets, and in order to ensure good use of the rackets, the carbon fiber rackets need to have sufficient strength, and in order to ensure smooth movement during swinging, the frontal area of the rackets needs to be reduced as much as possible, so that the resistance is reduced, the vibration caused by turbulent flow in the air is reduced, and the strength and the stability of swinging of the rackets are improved.

The shape of the existing badminton racket rod (commonly called as middle tube) is generally a hollow cylinder, and when the badminton racket rod is designed and manufactured, the hollow cylinder is made of the same materials in the length direction by adopting a one-step forming process. Therefore, the performances of rigidity, elasticity and the like of the racket rod in the length direction are basically uniform; however, in the actual badminton racket, the front and the rear parts of the badminton racket swing forwards and backwards, the larger swing moment is borne by the front and the rear parts of the badminton racket, and the left and the right directions of the badminton racket are stressed less, but at present, no racket which is optimally designed according to the windward area of the racket exists, so that a new badminton racket needs to be designed to better meet the actual sports requirements, especially the professional sports requirements.

Disclosure of Invention

The carbon fiber badminton racket manufactured by the method has good rigidity and strength, can enhance the hitting stability of the racket and improve the rebounding capacity of the racket, is very environment-friendly and safe, reduces impact injury, provides comfortable holding hand feeling, and has good use and popularization values.

A carbon fiber badminton racket is provided with a racket frame, wherein latticed and tightened racket strings are arranged in the racket frame, the tail end of the racket frame is rigidly connected with a racket rod, and the tail end of the racket rod is connected with a racket handle; a front sleeve is sleeved at the joint of the racket handle and the racket rod;

furthermore, a rear sleeve is sleeved at the tail end of the racket handle and used for preventing the bottom of the racket handle from being accidentally knocked.

The racket rod is provided with a rod body, the rod body is a solid or hollow pipe with filler, the upper end and the lower end of the rod body are respectively provided with an upper extension section and a lower extension section, and the racket rod is formed by solidifying carbon fibers; any one end of the upper extension section and the lower extension section can be an inwards concave hollow section or a solid section with a cylindrical protrusion.

The upper extending section and the lower extending section of the racket rod are preferably concave hollow sections, so that the racket rod is easier to mortise and tenon mount when being assembled with the racket frame and the racket handle.

The filler is a damping material, and the damping material is rubber or foamed plastic.

The cross section of the racket rod is circular, oval or drop-shaped; wherein, the cross section is round, which has the advantages of convenient rolling and convenient large-scale production; when the cross section is oval or water droplet shape, the minor axis direction that the windward area is less in the racket rod is 90 contained angles with the line of clapping on the frame, and the user can effectively reduce the windward area when waving the racket in front and back, reduces air resistance, more is favorable to the high-level performance, and on the other hand, compares in circular cross section, has effectively lengthened the length between the front and back on the racket rod cross section, has played the effect of strengthening rib, has better intensity.

The surface of the racket handle is wound with the anti-skid handle skin, the upper surface of the handle skin is provided with the silver ion coating, so that bacteria on the surface of the handle skin can be effectively killed, the probability of germ infection of a user is reduced, and particularly, the hand is wounded.

A manufacturing method of a carbon fiber badminton racket comprises the steps of (1) manufacturing method of a racket frame, (2) manufacturing method of a racket rod and (3) assembling and forming method; after the step (1) and the step (2) are respectively finished, the racket frame, the racket rod and the racket handle which are respectively manufactured in the step (1) and the step (2) are used for installation and solidification.

The manufacturing method of the carbon fiber badminton racket comprises the following steps of (1) manufacturing a racket frame:

(1.1) according to the shape and size of the badminton racket frame, firstly, rolling a racket frame preformed piece by using carbon fiber composite material prepreg cloth containing epoxy resin.

(1.2) putting a proper amount of ammonium carbonate powder into a ventilation pipe inside the racket frame preform, and sealing two ends of the ventilation pipe.

And (1.3) preparing the racket frame preformed piece and the middle rod into a racket preformed piece, putting the racket frame preformed piece and the middle rod into a corresponding mould, and heating and curing.

(1.4) with the rise of the temperature of the mould, ammonium carbonate powder in the racket frame preformed piece begins to decompose and gasify, the gas pressure after decomposition reaches 10-20KG/c square meter, and the racket frame preformed piece can be obtained after the preset temperature and time are reached, so that the carbon fiber racket frame preformed piece is inflated by using an air compressor in the traditional carbon fiber racket forming process, and the carbon fiber cloth is cured and formed with the rise of the temperature under the continuous pressure.

The size of the gas pressure in the method can be adjusted through the component of ammonium carbonate powder, and can also be adjusted through changing the size of the carbon fiber composite material prepreg; the ammonium powder in the carbon fiber composite material prepreg cloth is gasified from 90 ℃ to generate pressure till 160 ℃, and the duration of the pressure is about 15 minutes and is consistent with the curing time and temperature of the epoxy resin in the carbon fiber cloth. Need pack into the nylon tube in advance in the feather bat inner chamber during traditional wind pressure shaping, air compressor's high-pressure draught can not impact carbon cloth, otherwise can cause atmospheric pressure to dash in disorder with carbon cloth's locating place, and the feather bat leaks out and leads to intensity not enough. The forming process does not need a hot-press forming table in the traditional process, can realize an automatic conveyer belt oven, and can realize batch concentrated baking and heating instead of heating by a single hot-press forming table, thereby saving the electricity cost, ensuring uniform and stable temperature and more stable strength of the badminton racket; the high-temperature working environment caused by heat dissipation of a high-temperature hot pressing table in the traditional process and harmful gas generated by high temperature and high pressure are avoided, the environmental temperature can be controlled at normal temperature, the work is comfortable, and the environment-friendly and healthy effects are achieved; the gasification pressure of the ammonium carbonate powder replaces the traditional wind pressure, and the noise pollution and energy waste generated when the air compressor supplies air are avoided.

The method for manufacturing the racket rod in the step (2) in the manufacturing method of the carbon fiber badminton racket comprises the following steps:

(2.1) cutting the carbon fiber composite material prepreg cloth containing the epoxy resin into a specified required size, wherein the length is 290-330mm, and the width is controlled according to the weight and the perimeter.

And (2.2) placing the cut carbon fiber composite material prepreg on a workbench, rolling the prepreg from the long side, rolling the prepreg into a strip-shaped preformed piece, and controlling the outer diameter of the preformed piece according to the specification.

And (2.3) putting the rolled preformed piece into a forming die, closing and buckling the die, moving the die into a heating device for heating for a certain time, and curing and forming the preformed piece in the heating process.

And (2.4) when the forming die is heated for a specified time, removing the forming die from the heating device, placing the forming die on a cooling table for cooling, moving the forming die into the working platform, opening the die, and taking out the formed carbon fiber racket rod.

(2.5) putting the carbon fiber racket rod into a grinding machine for grinding, grinding into a preset shape to enable the outer diameter of the carbon fiber racket rod to reach a required size, cutting the residual special resin cloth on the outer layer of the ground tubular piece to a required length, and processing the upper extension section and the lower extension section of the ground racket rod into a preset size.

The weight ratio of the epoxy resin content in the carbon fiber composite material prepreg cloth in the step (2.1) is 25-35%.

In the step (2.3), the mould is moved into a heating device to be heated at 135 +/-5 ℃ for 60 minutes.

In the step (2.4), the temperature of the cooling table is 10 +/-2 ℃, the cooling time is 6-8 minutes, and the temperature of the die is cooled to 50 +/-5 ℃.

In the step (2.5), the external diameter of the grinded carbon fiber racket rod is phi 5 mm-phi 7.5mm, and the concave sizes of the upper extension section and the lower extension section of the racket rod are that the length of an inner hole is 3mm-50mm, and the diameter is 0.5mm-5.0 mm.

The method for assembling and forming the carbon fiber badminton racket comprises the following steps of (3):

(3.1) attaching a carbon fiber composite prepreg connecting patch or connecting pieces to the joint of the racket frame and the racket rod, and positioning the joint of the racket frame and the racket rod;

(3.2) taking the positioned racket preformed piece down from the preforming mold, and attaching a carbon fiber composite material prepreg cloth connecting patch to the joint of the racket frame and the racket rod according to the requirement to obtain a carbon fiber racket preformed piece;

(3.3) putting the preformed racket into a racket forming die, closing and buckling the die, moving the die into a heating device, heating for a certain time at the temperature of 150 +/-5 ℃ for 20-60 minutes, and curing and forming the carbon fiber racket preformed piece in the heating process;

(3.4) when the racket forming die reaches the specified heating time, removing the racket forming die from the heating device, placing the racket forming die on a cooling table, wherein the cooling temperature of the cooling table is 10 +/-2 ℃, the cooling time is 6-8 minutes, the temperature of the die is cooled to 50 +/-5 ℃, moving the racket forming die into a working platform, and opening the die to take out the formed carbon fiber composite material racket blank;

(3.5) after forming the racket blank, drilling the blank by using a mold or on a programmable automatic drilling machine;

(3.6) filling possible slight unevenness on the outer surface of the drilled racket blank by using EP series putty, and polishing and flattening the surface of the racket blank by using 400-800 meshes of gauze paper;

(3.7) combining the front cover and the racket handle;

coating 0.5-1 g of commercially available AB glue at the rear end of the blank racket rod, simultaneously coating 0.5-1 g of AB glue in a joint hole of the racket handle and the racket rod and on a joint surface of the front sleeve and the racket handle respectively, and connecting the front sleeve, the racket handle and the blank racket rod together on equipment;

(3.8) curing for 12-24 hours at room temperature or curing for 2-4 hours in an oven at the temperature of 60-80 ℃ to ensure that the front cover, the racket handle and the racket rod of the blank are firmly jointed;

after the connection, the racket handle and the racket rod are fixed at the joint of the front end of the racket handle and the rear end of the racket rod by using the countersunk head screw, and the head of the screw is flush with the surface of the racket handle;

(3.9) after the front cover and the racket handle are jointed with the racket rod of the blank, coating and beautifying the racket frame, the racket rod and the front cover;

the beautification processing is that paints with various colors and transfer printing patterns with various shapes are sprayed on the racket frame, the racket rod and the front sleeve according to the design requirements;

the paint is preferably a PU series paint. Standing at room temperature for 15-30 minutes after the paint is sprayed, enabling the paint to be sufficiently leveled on the sprayed surface, and then baking in an oven at the temperature of 80-85 ℃ for 0.5-2 hours to enable the paint to be cured;

the transfer printing pattern is made of printing ink, and partial patterns are made by gold stamping and silver stamping processes.

(3.10) after painting and beautifying the racket frame, the racket rod and the front cover, inserting a thread protecting nail into the hole of the racket frame, assembling a rear cover at the rear end of the racket handle, winding a handle skin on the outer surface of the racket handle, threading the racket thread according to a threading method, and tensioning the racket thread on a badminton racket thread drawing machine according to required tension, thereby preparing a qualified badminton racket.

Compared with the prior art, the carbon fiber badminton racket and the manufacturing method thereof have the following advantages:

(1) the badminton racket designed and manufactured by the invention has the advantages that the racket rod is made of the middle rod with the three-section structure, and compared with the traditional hollow racket rod, the racket rod has stronger rigidity, so that a finer racket rod can be manufactured, meanwhile, the two ends of the racket rod are hollow, the middle of the racket rod is solid, the vibration generated by the batting force of the racket frame can be transmitted to the racket handle through the racket rod, when the vibration is transmitted to the hollow end of the racket rod, part of vibration can be eliminated, and the vibration injury to an opponent can be reduced.

(2) The badminton racket designed and manufactured by the invention has better rebound performance of the racket rod, and the rebound speed of the racket rod after being hit is obviously improved compared with the existing racket.

(3) The badminton racket designed and manufactured by the invention has the advantages that the whole twisting resistance of the racket is greatly improved compared with the existing racket, and the racket is smaller in deformation during batting, so that better experience is brought to a user.

(4) The badminton racket designed and manufactured by the invention adopts the sodium carbonate powder inflation molding process, does not have a high-temperature working environment caused by heat emitted by a high-temperature hot pressing platform in the traditional process, does not have noise pollution and energy waste generated when an air compressor supplies air, is environment-friendly and safe, reduces labor injury, and provides a comfortable working environment for workers.

Drawings

The invention will be further explained with reference to the drawings, in which:

FIG. 1 is a schematic structural view of a carbon fiber badminton racket of the present invention.

FIG. 2 is a schematic structural view of an axial section of a racket rod of a carbon fiber badminton racket (an upper extension section and a lower extension section are concave hollow sections).

FIG. 3 is a second schematic structural view of the axial section of the shaft of a carbon fiber badminton racket of the present invention (the upper extension section is an inward concave hollow section, and the lower extension section is a cylindrical convex solid section).

FIG. 4 is a schematic cross-sectional view of the body of three types of racket rods of the carbon fiber badminton racket.

FIG. 5 is a schematic view of the cross section of the rod body of the rod in the carbon fiber badminton racket being oval and the angle between the rod body and the racket frame.

FIG. 6 is a schematic flow chart of a method for manufacturing a frame of the carbon fiber badminton racket.

FIG. 7 is a schematic flow chart of a method for manufacturing a racket shaft in a carbon fiber badminton racket according to the present invention.

Detailed Description

The invention will be further described with reference to the accompanying figures 1-7.

Referring to the attached figure 1, the carbon fiber badminton racket is provided with a racket frame 1, wherein latticed and tight racket strings 2 are arranged in the racket frame 1, the tail end of the racket frame 1 is rigidly connected with a racket rod 3, and the tail end of the racket rod 3 is connected with a racket handle 4; a front sleeve 5 is sleeved at the joint of the racket handle 4 and the racket rod 3;

furthermore, a rear sleeve 6 is sleeved at the tail end of the racket handle 4 for preventing the bottom of the racket handle 4 from being accidentally knocked.

Referring to the attached

drawings

2 and 3, the racket rod 3 is provided with a rod body 3-1, the rod body 3-1 is a solid or hollow pipe with filler, the upper end and the lower end of the rod body 3-1 are respectively provided with an upper extension section 3-2 and a lower extension section 3-3, and the racket rod 3 is formed by curing carbon fiber; any one end of the upper extension section 3-2 and the lower extension section 3-3 can be a concave hollow section or a solid section with a cylindrical protrusion.

The upper end and the lower end of the rod body are respectively provided with an upper extension section and a lower extension section, and the racket rod is formed by solidifying carbon fibers; any one end of the upper extension section and the lower extension section can be an inwards concave hollow section or a solid section with a cylindrical protrusion.

The upper extension section 3-2 and the lower extension section 3-3 of the racket rod 3 are preferably hollow sections that are concave, so that the racket rod 3 is easier to mortise and tenon mount when being assembled with the racket frame 1 and the racket shaft 4.

Referring to fig. 4 and 5, the cross section of the racket shaft 3 is circular, oval or drop-shaped; wherein, the cross section is round, which has the advantages of convenient rolling and convenient large-scale production; when the cross section is oval or water droplet shape, the minor axis direction that the windward area is less in the racket rod 3 is 90 contained angles with the line of clapping 2 on the frame 1, and the user can effectively reduce the windward area when waving the racket in the front and back, reduces air resistance, more is favorable to high level performance, and on the other hand compares in circular cross section, has effectively lengthened the length between the front and back on the racket rod 3 cross section, has played the effect of strengthening rib, has better intensity.

A manufacturing method of a carbon fiber badminton racket comprises the steps of (1) manufacturing method of a racket frame, (2) manufacturing method of a racket rod 3 and (3) assembling and forming method; after the step (1) and the step (2) are respectively finished, the racket frame 1, the racket rod 3 and the racket handle 4 which are respectively manufactured in the step (1) and the step (2) are used for installation and solidification.

Referring to the attached figure 6, the manufacturing method of the racket frame 1 in the step (1) of the manufacturing method of the carbon fiber badminton racket is as follows:

The gas pressure in the method can be adjusted by the component of ammonium carbonate powder, and can also be adjusted by changing the size of the carbon fiber composite material prepreg cloth; the ammonium powder in the carbon fiber composite material prepreg cloth is gasified from 90 ℃ to generate pressure till 160 ℃, and the duration of the pressure is about 15 minutes and is consistent with the curing time and temperature of the epoxy resin in the carbon fiber cloth. Need pack into the nylon tube in advance in the feather bat inner chamber during traditional wind pressure shaping, air compressor's high pressure draught can not impact carbon cloth, otherwise can cause atmospheric pressure to dash in disorder with carbon cloth's locating place, and the feather bat leaks out and leads to intensity not enough. The forming process does not need a hot-press forming table in the traditional process, can realize an automatic conveyer belt oven, and can realize batch concentrated baking and heating instead of heating by a single hot-press forming table, thereby saving the electricity cost, ensuring uniform and stable temperature and more stable strength of the badminton racket; the high-temperature working environment caused by heat dissipation of a high-temperature hot pressing table in the traditional process and harmful gas generated by high temperature and high pressure are avoided, the environmental temperature can be controlled at normal temperature, the work is comfortable, and the environment-friendly and healthy effects are achieved; the gasification pressure of the ammonium carbonate powder replaces the traditional wind pressure, and the noise pollution and energy waste generated when the air compressor supplies air are avoided.

Referring to the attached figure 7, the manufacturing method of the racket rod 3 in the step (2) in the manufacturing method of the carbon fiber badminton racket is as follows:

And (2.2) placing the cut carbon fiber composite material prepreg cloth on a workbench, rolling the prepreg cloth from the long side, rolling the wound prepreg cloth into a strip-shaped preformed piece, and controlling the outer diameter of the preformed piece according to the specification.

(2.5) putting the carbon fiber racket rod into a grinding machine for grinding, grinding into a preset shape to enable the outer diameter of the carbon fiber racket rod to reach a required size, wherein the residue of the special resin cloth on the outer layer of the ground tubular part does not exceed 10% of the volume of the resin cloth, and cutting into required length; and then the upper extension section and the lower extension section of the grinded racket rod are processed into preset sizes.

Specifically, the weight ratio of the epoxy resin content in the carbon fiber composite prepreg in the step (2.1) is 25-35%.

Specifically, in the step (2.3), the mold is moved into a heating device for heating at 135 +/-5 ℃ for 60 minutes.

Specifically, in the step (2.4), the temperature of the cooling table is 10 +/-2 ℃, the cooling time is 6-8 minutes, and the temperature of the die is cooled to 50 +/-5 ℃.

Specifically, in the step (2.5), the outer diameter of the carbon fiber racket rod after grinding is phi 5 mm-phi 7.5mm, and the concave sizes of the upper extending section and the lower extending section of the racket rod are that the length of an inner hole is 3mm-50mm, and the diameter is 0.5mm-5.0 mm.

(3.1) attaching a carbon fiber composite prepreg connecting patch or connecting pieces to the joint of the racket frame 1 and the racket rod 3, and positioning the joint of the racket frame 1 and the racket rod 3;

(3.2) taking down the positioned racket preformed piece from the preforming mold, and attaching a carbon fiber composite material prepreg cloth connecting patch to the joint of the racket frame 1 and the racket rod 3 according to requirements to obtain a carbon fiber racket preformed piece;

(3.7) combining the front cover 5 and the racket handle 4;

coating 0.5-1 g of commercially available AB glue on the rear end of the blank racket rod, simultaneously coating 0.5-1 g of AB glue in a joint hole between the racket handle 4 and the racket rod 3 and on a joint surface between the front sleeve 5 and the racket handle 4 respectively, and connecting the front sleeve 5, the racket handle 4 and the blank racket rod together on equipment;

(3.8) curing at room temperature for 12-24 hours or curing in an oven at the temperature of 60-80 ℃ for 2-4 hours to ensure that the front cover 5 and the racket handle 4 are firmly connected with the racket rod of the blank;

after the connection, the racket handle 4 and the racket rod 3 are fixed at the joint of the front end of the racket handle 4 and the rear end of the racket rod 3 by using a countersunk head screw, and the head of the screw is flush with the surface of the racket handle 4;

(3.9) after the front sleeve 5 and the racket handle 4 are jointed with the racket rod of the blank, coating and beautifying the racket frame 1, the racket rod 3 and the front sleeve 5;

the beautification processing is that paints with various colors and transfer printing patterns with various shapes are sprayed on the racket frame 1, the racket rod 3 and the front cover 5 according to the design requirements;

(3.10) after painting and beautifying the racket frame 1, the racket rod 3 and the front sleeve 5, threading a thread protecting nail into the hole of the racket frame 1, assembling the rear sleeve 6 at the rear end of the racket handle 4, winding a handle skin on the outer surface of the racket handle 4 and the like, threading a racket thread according to a threading method, and tensioning the racket thread 2 on a badminton racket thread drawing machine according to the required tension, thus preparing a qualified badminton racket.

Claims

1. A carbon fiber badminton racket is characterized in that: the racket is provided with a racket frame, wherein latticed and tightened racket lines are arranged in the racket frame, the tail end of the racket frame is rigidly connected with a racket rod, and the tail end of the racket rod is connected with a racket handle; a front sleeve is sleeved at the joint of the racket handle and the racket rod;

2. The carbon fiber badminton racket of claim 1, which has a racket frame, characterized in that: the filler is a damping material, and the damping material is rubber or foamed plastic.

3. The carbon fiber badminton racket of claim 1, which has a racket frame, characterized in that: the cross section of the racket rod is circular, oval or drop-shaped.

4. The carbon fiber badminton racket of claim 1, which has a racket frame, characterized in that: the surface of the racket handle is wound with an anti-skid handle skin, and the upper surface of the handle skin is provided with a silver ion coating.

5. A manufacturing method of a carbon fiber badminton racket is characterized by comprising the following steps: the method comprises the steps of (1) manufacturing a racket frame, (2) manufacturing a racket rod and (3) assembling and forming; after the step (1) and the step (2) are respectively finished, the racket frame, the racket rod and the racket handle which are respectively manufactured in the step (1) and the step (2) are used for installation and solidification.

6. The manufacturing method of the carbon fiber badminton racket as claimed in claim 5, wherein the manufacturing method of the racket frame in the step (1) is as follows:

(1.1) rolling a racket frame pre-forming piece by using carbon fiber composite material prepreg cloth containing epoxy resin according to the size of a racket frame;

(1.2) placing a proper amount of ammonium carbonate powder into a ventilation pipe inside the racket frame preformed piece, and sealing two ends of the ventilation pipe;

(1.3) preparing a racket frame preformed piece and a middle rod into a racket preformed piece, putting the racket frame preformed piece and the middle rod into a corresponding mould, and heating and curing;

7. The manufacturing method of the carbon fiber badminton racket of claim 5, characterized in that the manufacturing method of the racket rod in the step (2) is as follows:

(2.1) cutting the carbon fiber composite material prepreg cloth containing the epoxy resin into a specified required size, wherein the length is 290-330mm, and the width is controlled according to the weight and the perimeter;

(2.2) placing the cut carbon fiber composite material prepreg cloth on a workbench, rolling the prepreg cloth from the long side, rolling the prepreg cloth into a strip-shaped preformed piece, and controlling the outer diameter of the preformed piece according to the specification;

(2.3) putting the coiled preformed piece into a forming mould, closing and buckling the mould, moving the mould into a heating device for heating for a certain time, and curing and forming the preformed piece in the heating process;

(2.4) when the forming die is heated for a specified time, moving the forming die out of the heating device, placing the forming die on a cooling table for cooling, moving the forming die into a working platform, opening the die, and taking out the formed carbon fiber racket rod;

8. The manufacturing method of the carbon fiber badminton racket of claim 7, characterized in that: the weight ratio of the epoxy resin content in the carbon fiber composite material prepreg cloth in the step (2.1) is 25-35%;

in the step (2.3), the die is moved into a heating device to be heated at 135 +/-5 ℃ for 60 minutes;

9. The manufacturing method of the carbon fiber badminton racket of claim 7, characterized in that: in the step (2.5), the external diameter of the grinded carbon fiber racket rod is phi 5 mm-phi 7.5mm, and the concave sizes of the upper extension section and the lower extension section of the racket rod are that the length of an inner hole is 3mm-50mm, and the diameter is 0.5mm-5.0 mm.

10. The manufacturing method of the carbon fiber badminton racket as claimed in claim 5, wherein the assembling and forming method in the step (3) is as follows:

(3.7) combining the front cover and the racket handle;

after the connection is finished, the racket handle and the racket rod are fixed at the joint of the front end of the racket handle and the rear end of the racket rod by using a countersunk head screw, and the head of the screw is flush with the surface of the racket handle;

the paint is preferably PU series paint, the paint is kept still for 15-30 minutes at room temperature after being sprayed, the paint is sufficiently leveled on the sprayed surface, and then the paint is baked in an oven at the temperature of 80-85 ℃ for 0.5-2 hours to be cured;

the transfer printing pattern is made of printing ink, and partial patterns are made by gold stamping and silver stamping processes;