A method for processing a racket embryo

Abstract

The present invention discloses a method for processing a racket embryo, which specifically includes the following steps: step 1, cutting solid expansion filling materials and carbon fiber epoxy resin prepreg according to the size of the racket structure; step 2, spreading the carbon fiber epoxy resin prepreg flat, and then pre-placing the solid expansion filling material between the carbon fiber epoxy resin prepreg interlayers, and sleeve the plastic film tube outside the winding core. The present invention relates to the technical field of racket embryo preparation. The racket embryo processing method successfully achieves lightweighting and strength enhancement of the racket by replacing the plastic film tube with carbon fiber epoxy resin prepreg. This process not only reduces the weight of the racket, but also improves the strength of the racket by replacing the carbon fiber epoxy resin prepreg of the same weight, significantly improving the overall performance of the racket. While keeping the racket light, this process also enhances its shock absorption performance when hitting the ball, achieving overall balance and optimization of the racket performance.

Description

Technical Field

[0001] The invention relates to the technical field of racket embryo preparation, in particular to a racket embryo processing method. Background Art

[0002] Existing rackets are prone to vibration during use, especially during high-intensity hitting, which not only affects the athlete's experience, but may also cause hand injuries to the athlete. Traditional rackets usually reduce vibration by filling the racket frame with shock-absorbing materials, but this method has limited shock-absorbing effects and increases the weight of the racket, affecting athletic performance. In addition, during the preparation process of existing rackets, there is a lack of automatic winding equipment that automatically clamps the racket and winds the shock-absorbing material around the shaft, resulting in low preparation efficiency. In response to this, we propose a racket embryo processing method to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a method for processing a racket embryo, which solves the problems raised in the background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a method for processing a racket embryo, specifically comprising the following steps:

[0005] Step 1, cutting the solid expansion filling material and the carbon fiber epoxy resin prepreg according to the size of the racket structure;

[0006] Step 2: Spread the carbon fiber epoxy resin prepreg flat, and then pre-place the solid expansion filling material between the carbon fiber epoxy resin prepreg interlayers, put the plastic film tube outside the winding core, use a vacuum pump to exhaust the air in the plastic film tube, so that the inner wall of the plastic film tube is tightly fitted to the winding core, and then roll the carbon fiber epoxy resin prepreg that has been stacked and pre-placed with the solid expansion filling material on the plastic film tube through a winding device, that is, roll the carbon fiber epoxy resin prepreg into a cylindrical shape;

[0007] Step 3: Stop vacuuming, fix the plastic film tube at one end of the winding core, then fix the cylindrical carbon fiber prepreg with one hand and pull out the winding core with the other hand and pull out the plastic film tube, that is, roll it into a carbon fiber epoxy resin prepreg tube;

[0008] Step 4: Roll the carbon fiber epoxy resin prepreg tube with a roller roller to expel air, make the layers fit tightly, and improve the strength of the racket. Fold and close the openings at both ends with the carbon fiber epoxy resin prepreg and connect it to the middle pole of the racket. Wrap and reinforce the connection with the carbon fiber prepreg to make it look like a racket. Fix the finished pre-assembly racket frame on an elliptical fixture to make the carbon fiber smooth and avoid wrinkles that affect the strength of the racket.

[0009] Step 5. Place the pre-assembly into the mold and close the mold, move the mold into the hot pressing equipment, heat the mold quickly, and expand the solid expansion filling material preset in the carbon fiber prepreg interlayer in the mold due to heat. The carbon fiber epoxy resin prepreg is quickly cured and shaped under the expansion pressure and the mold cavity restriction. After the heat curing is completed, move the mold into the cooling machine for cooling. After cooling to room temperature, open the mold to make a solid racket blank.

[0010] Preferably, the winding device in step 2 includes a mounting seat, a clamping assembly for clamping the winding core is arranged on the top of the mounting seat, and a winding assembly for winding the carbon fiber epoxy resin prepreg around the winding core is also arranged on the top of the mounting seat, and the clamping assembly and the winding assembly are both controlled by a driving clutch mechanism to work.

[0011] Preferably, the clamping assembly includes a mounting ring fixed on the top of the mounting seat, the inner surface of the mounting ring is rotatably connected to a ring frame, one side of the mounting ring is rotatably connected to three rotating rods via a rotating shaft, and one end of the three rotating rods is rotatably connected to a roller.

[0012] Preferably, one side of the inner wall of the annular frame is rotatably connected with three limit blocks via a pin shaft, one end of the three rotating rods passes through the limit block and extends to the outside of the limit block, and the outer surfaces of the three rotating rods are slidably connected to the inner surface of the limit block.

[0013] Preferably, the winding assembly includes a fixed plate fixed on the top of the mounting seat, an inner gear ring is fixed on the top of the fixed plate, a gear one is rotatably connected to the center of the inner gear ring, three gear twos are rotatably connected to the inside of the inner gear ring, the three gear twos are all meshed with the inner gear ring and gear one, and a through pipe is fixed to the inside of the three gear twos.

[0014] Preferably, the driving clutch mechanism includes a vertical plate fixed on the top of the mounting seat, one side of the vertical plate is rotatably connected to a connecting rod, one end of the connecting rod is fixed to one side of gear one, one side of the vertical plate is also rotatably connected to a driving rod, one end of the connecting rod and the driving rod both pass through the vertical plate and extend to the outside of the vertical plate, one end of the connecting rod and the outer surface of the driving rod are fixed with pulleys, and the two pulleys are connected by a belt drive.

[0015] Preferably, a horizontal plate is fixed on one side of the vertical plate, a motor is fixed on the horizontal plate, the motor drives the driving rod to rotate, an outer gear ring is fixed on one side of the annular frame, a gear three is provided on one side of the outer gear ring, the gear three is meshed with the outer gear ring, a circular groove is opened through the inside of the gear three, four slots are opened on the inner wall of the circular groove, and a clutch block is slidably connected to the driving rod.

[0016] Preferably, four clamping blocks are fixed on the outer surface of the clutch block, and the outer surface of the clutch block is rotatably connected to the inner surface of the circular groove. One side of the four clamping blocks extends to the inside of the clamping groove. Two limit grooves are provided inside the clutch block. Limiting strips are fixed to the top and bottom of the driving rod, and the two limit strips extend to the inside of the limit grooves. The outer surface of the limit strip is slidably connected to the inner surface of the limit groove, and a handle is fixed on one side of the clutch block.

[0017] Preferably, the hot pressing equipment in step five includes a base, a molding seat is fixed on the top of the base, a mounting frame is fixed on the top of the base, a cylinder is fixed on the top of the mounting frame, a movable plate is fixed on the output end of the cylinder, and a hot pressing plate is installed on the bottom of the movable plate.

[0018] Beneficial Effects

[0019] The present invention provides a method for processing a racket embryo. Compared with the prior art, the method has the following beneficial effects:

[0020] (1) By replacing the plastic film tube with carbon fiber epoxy resin prepreg, the racket is successfully lightweight and strengthened. This process not only reduces the weight of the racket, but also improves the strength of the racket by replacing it with the same weight of carbon fiber epoxy resin prepreg, significantly improving the overall performance of the racket. While maintaining the lightness of the racket, this process also enhances its shock-absorbing performance when hitting the ball, achieving an overall balance and optimization of the racket's performance.

[0021] (2) Through the setting of the clamping component, adaptive automatic clamping of the core is achieved, which meets the clamping requirements of cores of different sizes. After the core is clamped, further wrapping operations are convenient. Through the setting of the winding component, the carbon fiber epoxy resin prepreg is automatically wrapped around the core without manual operation, which greatly improves the efficiency of winding and wrapping.

[0022] (3) By setting up the driving clutch mechanism, the clamping assembly and the winding assembly can be quickly linked and engaged, and the effect of a motor driving the clamping assembly and the winding assembly to work can be achieved. When the clamping assembly is not needed, the clutch block can be separated from the third gear in time, so that the winding assembly can perform the winding work independently. The two have strong linkage and can be quickly engaged and engaged, which is convenient to operate and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the external structure of the present invention;

[0024] Figure 2 It is a local structural stereogram of the present invention;

[0025] Figure 3It is a side view of the local structure of the present invention;

[0026] Figure 4 A three-dimensional diagram of the clamping assembly of the present invention;

[0027] Figure 5 An exploded diagram of the driving clutch mechanism of the present invention;

[0028] Figure 6 It is a three-dimensional diagram of the cylinder, movable plate and hot pressing plate structure of the present invention.

[0029] In the figure: 1. mounting seat; 2. clamping assembly; 3. winding assembly; 4. driving clutch mechanism; 5. base; 6. forming seat; 7. mounting frame; 8. cylinder; 9. moving plate; 10. hot pressing plate; 21. mounting ring; 22. ring frame; 23. rotating shaft; 24. rotating rod; 25. roller; 26. limiting block; 31. fixing plate; 32. inner gear ring; 33. gear one; 34. gear two; 35. through pipe; 41. vertical plate; 42. connecting rod; 43. driving rod; 44. pulley; 45. belt; 46. horizontal plate; 47. motor; 48. outer gear ring; 49. gear three; 410. circular groove; 411. card slot; 412. clutch block; 413. card block; 414. limiting groove; 415. handle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention provides three technical solutions, including the following embodiments:

[0032] Example 1

[0033] A method for processing a racket embryo comprises the following steps:

[0034] Step 1, cutting the solid expansion filling material and the carbon fiber epoxy resin prepreg according to the size of the racket structure;

[0035] Step 2: Spread the carbon fiber epoxy resin prepreg flat, and then pre-place the solid expansion filling material between the carbon fiber epoxy resin prepreg interlayers, put the plastic film tube outside the winding core, use a vacuum pump to exhaust the air in the plastic film tube, so that the inner wall of the plastic film tube is tightly fitted to the winding core, and then roll the carbon fiber epoxy resin prepreg that has been stacked and pre-placed with the solid expansion filling material on the plastic film tube through a winding device, that is, roll the carbon fiber epoxy resin prepreg into a cylindrical shape;

[0036] Step 3: Stop vacuuming, fix the plastic film tube at one end of the winding core, then fix the cylindrical carbon fiber prepreg with one hand and pull out the winding core with the other hand and pull out the plastic film tube, that is, roll it into a carbon fiber epoxy resin prepreg tube. At this time, the plastic film tube is pulled out to reduce the weight by 1.5-2 grams. Replacing it with carbon fiber epoxy resin prepreg of the same weight can increase the strength of the racket by 10-15%;

[0037] Step 4: Use a roller roller to roll the carbon fiber epoxy resin prepreg tube to expel air. The rolling pressure is 4 kg / cm2 to make the layers fit tightly and improve the strength of the racket. Use the carbon fiber epoxy resin prepreg to fold and close the openings at both ends and connect them to the middle pole of the racket. Use the carbon fiber prepreg to wrap and reinforce the connection to make it look like a racket. Fix the finished pre-assembly racket frame on an elliptical fixture to make the carbon fiber smooth and avoid wrinkles that affect the strength of the racket.

[0038] Step 5. Place the pre-assembly into the mold and close the mold, move the mold into the hot pressing equipment, apply a pressure of 90-110 tons / square meter, heat the mold quickly, the epoxy resin curing temperature is 135-140 degrees Celsius, and the curing time is 30-40 minutes. During this period, the solid expansion filling material pre-placed in the carbon fiber prepreg interlayer expands and increases in the mold due to heat. The expansion ratio of the solid expansion filling material is 50-90 times. After thermal expansion, it can generate 5-10 kg / square centimeter expansion pressure. The carbon fiber epoxy resin prepreg is quickly cured and shaped under the expansion pressure and the limitation of the mold cavity. After the heat curing is completed, the mold is moved into the cooling machine for rapid cooling. The cooling time is 4-5 minutes. After cooling to room temperature, the mold is opened to form a solid racket blank.

[0039] Example 2

[0040] Based on Example 1, see Figure 1-Figure 5 As shown, the winding device in step 2 includes a mounting seat 1, a clamping assembly 2 for clamping the winding core is arranged on the top of the mounting seat 1, and a winding assembly 3 for winding the carbon fiber epoxy resin prepreg around the winding core is also arranged on the top of the mounting seat 1. Both the clamping assembly 2 and the winding assembly 3 are controlled by a driving clutch mechanism 4 to work.

[0041] The clamping assembly 2 includes a mounting ring 21 fixed on the top of the mounting base 1, providing a stable mounting base, and is installed on the top of the mounting base 1 by bolts. The inner surface of the mounting ring 21 is rotatably connected to a ring frame 22, and the ring frame 22 can rotate around its central axis. One side of the mounting ring 21 is rotatably connected to three rotating rods 24 through a rotating shaft 23, and one end of the three rotating rods 24 is rotatably connected to a roller 25. The roller 25 is designed to better contact with the winding core, reduce friction, and provide uniform pressure during clamping, and is suitable for clamping winding cores of different sizes.

[0042] One side of the inner wall of the annular frame 22 is rotatably connected to three limit blocks 26 via a pin shaft. One end of the three rotating rods 24 passes through the limit blocks 26 and extends to the outside of the limit blocks 26. The outer surfaces of the three rotating rods 24 are slidably connected to the inner surfaces of the limit blocks 26.

[0043] By setting the clamping assembly 2, adaptive automatic clamping of the core is achieved, which meets the clamping requirements of cores of different sizes and facilitates further wrapping operations after the core is clamped.

[0044] The winding assembly 3 includes a fixing plate 31 fixed on the top of the mounting base 1, an inner gear ring 32 is fixed on the top of the fixing plate 31, a gear 1 33 is rotatably connected to the center of the inner gear ring 32, three gear 2s 34 are rotatably connected to the inner gear ring 32, the three gear 2s 34 are all meshed with the inner gear ring 32 and the gear 1 33, a through pipe 35 is fixed to the inside of the three gear 2s 34, both ends of the through pipe 35 are open-ended, so that the carbon fiber epoxy resin prepreg strip material can be easily passed through the through pipe 35 for winding.

[0045] By setting up the winding assembly 3, the carbon fiber epoxy resin prepreg is automatically wound and coated on the core without manual operation, which greatly improves the efficiency of winding and coating.

[0046] The driving clutch mechanism 4 includes a vertical plate 41 fixed on the top of the mounting base 1, one side of the vertical plate 41 is rotatably connected to a connecting rod 42, one end of the connecting rod 42 is fixed to one side of a gear 33, one side of the vertical plate 41 is also rotatably connected to a driving rod 43, one end of the connecting rod 42 and the driving rod 43 both pass through the vertical plate 41 and extend to the outside of the vertical plate 41, one end of the connecting rod 42 and the outer surface of the driving rod 43 are fixed with pulleys 44, and the two pulleys 44 are connected by a belt 45.

[0047] A horizontal plate 46 is fixed to one side of the vertical plate 41, and a motor 47 is fixed on the horizontal plate 46. The motor 47 is a three-phase asynchronous motor, which can be rotated forward and reversely, is controlled by an external switch, and is electrically connected to an external power supply. The motor 47 drives the driving rod 43 to rotate, and an outer gear ring 48 is fixed to one side of the annular frame 22. A gear three 49 is provided on one side of the outer gear ring 48, and the gear three 49 is meshed with the outer gear ring 48. A circular groove 410 is opened through the inside of the gear three 49, and four slots 411 are opened on the inner wall of the circular groove 410. A clutch block 412 is slidably connected to the driving rod 43.

[0048] Four clamping blocks 413 are fixed on the outer surface of the clutch block 412, and the length of the clamping blocks 413 is smaller than the length of the clutch block 412. The outer surface of the clutch block 412 is rotatably connected to the inner surface of the circular groove 410. One side of the four clamping blocks 413 extends to the inside of the clamping groove 411. Two limit grooves 414 are provided inside the clutch block 412. Limiting strips 416 are fixed to the top and bottom of the driving rod 43. The two limiting strips 416 extend to the inside of the limiting groove 414, and the outer surface of the limiting strip 416 is slidably connected to the inner surface of the limiting groove 414. Due to the setting of the limiting strip 416, the driving rod 43 can drive the clutch block 412 to rotate synchronously while rotating. A handle 415 is fixed to one side of the clutch block 412.

[0049] By setting up the driving clutch mechanism 4, a quick linkage clutch between the clamping assembly 2 and the winding assembly 3 is realized, and the effect of a motor 47 driving the clamping assembly 2 and the winding assembly 3 to work is realized. When the clamping assembly 2 is not needed, the clutch block 412 can be separated from the gear three 49 in time, so that the winding assembly 3 can perform the winding work independently. The two have strong linkage and can be quickly clutched, which is convenient to operate and greatly improves work efficiency.

[0050] Example 3

[0051] Based on Example 2, see Figure 1 and Figure 6 As shown, the hot pressing equipment in step five includes a base 5, a molding seat 6 is fixed on the top of the base 5, and the mold is placed in the molding seat 6 during hot pressing to form a racket shape during the hot pressing process. A mounting frame 7 is fixed on the top of the base 5, and a cylinder 8 is fixed on the top of the mounting frame 7. The cylinder 8 is controlled by an external switch and is electrically connected to an external power supply. A movable plate 9 is fixed on the output end of the cylinder 8, and a hot pressing plate 10 is installed on the bottom of the movable plate 9. The cylinder 8 is the power source of the hot pressing equipment. By controlling the extension and retraction of the piston rod of the cylinder, the movable plate 9 and the hot pressing plate 10 are driven to move up and down. The hot pressing plate 10 is a key component of the hot pressing equipment. It directly contacts and compresses the material to complete the hot pressing molding.

[0052] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0053] During operation, the winding core is placed in the mounting ring 21, and the motor 47 is started, so that the motor 47 drives the driving rod 43 to rotate, and the driving rod 43 drives the clutch block 412, the gear three 49, the outer gear ring 48, and the annular frame 22 to rotate. At the same time, the annular frame 22 drives the limit block 26 to move, so that the limit block 26 slides along the outer surface of the rotating rod 24, and the limit block 26 further drives the rotating rod 24 to rotate, and the three rollers 25 move inwards to tighten, and finally the winding core is clamped. After clamping, the motor 47 is turned off, and the handle 415 is pulled, so that the handle 415 drives the clutch block 412 to slide, and finally the block 413 slides out of the slot 411, so that the driving rod 43 and the gear are connected. The wheel three 49 is separated, and the motor 47 is started again at this time. The motor 47 drives the clutch block 412 to rotate in the gear three 49, and the motor 47 drives the gear one 33 to rotate. The gear one 33 drives the three gear twos 34 to rotate while revolving around the gear one 33. The carbon fiber epoxy resin prepreg is cut into strips and passed through three through tubes 35. The carbon fiber epoxy resin prepreg is clamped on the winding core by the roller 25. When the three gear twos 34 rotate, the carbon fiber epoxy resin prepreg is coated on the winding core. When hot pressing is required, the racket mold is placed in the molding seat 6, and the cylinder 8 is started, so that the cylinder 8 drives the hot pressing plate 10 to move downward, and the racket is hot pressed.

[0054] The above embodiments of the invention are described in detail, but the contents are only preferred embodiments of the invention and cannot be considered to limit the scope of the invention. All equivalent changes and improvements made within the scope of the invention should still fall within the scope of the invention.

Claims

1. A process for preparing a solid shock-absorbing racket embryo, characterized in that: The specific steps include: Step 1, cutting the solid expansion filling material and the carbon fiber epoxy resin prepreg according to the size of the racket structure; Step 2: Spread the carbon fiber epoxy resin prepreg flat, and then pre-place the solid expansion filling material between the carbon fiber epoxy resin prepreg interlayers, put the plastic film tube outside the winding core, use a vacuum pump to exhaust the air in the plastic film tube, so that the inner wall of the plastic film tube is tightly fitted with the winding core, and then roll the carbon fiber epoxy resin prepreg that has been stacked and pre-placed with the solid expansion filling material on the plastic film tube through a winding device, that is, roll the carbon fiber epoxy resin prepreg into a cylindrical shape; Step 3: Stop vacuuming, fix the plastic film tube at one end of the winding core, then fix the cylindrical carbon fiber prepreg with one hand and pull out the winding core with the other hand and pull out the plastic film tube, that is, roll it into a carbon fiber epoxy resin prepreg tube; Step 4: Roll the carbon fiber epoxy resin prepreg tube with a roller roller to expel air, make the layers fit tightly, and improve the strength of the racket. Fold and close the openings at both ends with the carbon fiber epoxy resin prepreg and connect it to the middle pole of the racket. Wrap and reinforce the connection with the carbon fiber prepreg to make it look like a racket. Fix the finished pre-assembly racket frame on an elliptical fixture to make the carbon fiber smooth and avoid wrinkles that affect the strength of the racket. Step 5. Place the pre-assembly into the mold and close the mold, move the mold into the hot pressing equipment, heat the mold quickly, and expand the solid expansion filling material preset in the carbon fiber prepreg interlayer in the mold due to heat. The carbon fiber epoxy resin prepreg is quickly cured and shaped under the expansion pressure and the mold cavity restriction. After the heat curing is completed, move the mold into the cooling machine for cooling. After cooling to room temperature, open the mold to make a solid racket blank.

2. The process for preparing a solid shock-absorbing racket embryo according to claim 1, characterized in that: The winding device in step 2 comprises a mounting seat (1), a clamping assembly (2) for clamping a winding core is arranged on the top of the mounting seat (1), and a winding assembly (3) for winding carbon fiber epoxy resin prepreg around the winding core is also arranged on the top of the mounting seat (1), and both the clamping assembly (2) and the winding assembly (3) are controlled by a driving clutch mechanism (4) to operate.

3. The process for preparing a solid shock-absorbing racket embryo according to claim 2, characterized in that: The clamping assembly (2) comprises a mounting ring (21) fixed on the top of the mounting seat (1); the inner surface of the mounting ring (21) is rotatably connected to a ring frame (22); one side of the mounting ring (21) is rotatably connected to three rotating rods (24) via a rotating shaft (23); one end of each of the three rotating rods (24) is rotatably connected to a roller (25).

4. The process for preparing a solid shock-absorbing racket embryo according to claim 3, characterized in that: One side of the inner wall of the annular frame (22) is rotatably connected to three limit blocks (26) via a pin shaft, one end of each of the three rotating rods (24) passes through the limit block (26) and extends to the outside of the limit block (26), and the outer surfaces of the three rotating rods (24) are slidably connected to the inner surface of the limit block (26).

5. The process for preparing a solid shock-absorbing racket embryo according to claim 2, characterized in that: The winding assembly (3) comprises a fixing plate (31) fixed on the top of the mounting seat (1), an inner gear ring (32) is fixed on the top of the fixing plate (31), a gear one (33) is rotatably connected to the center of the inner gear ring (32), three gear twos (34) are rotatably connected to the inner part of the inner gear ring (32), the three gear twos (34) are all meshed with the inner gear ring (32) and the gear one (33), and a through pipe (35) is fixed to the inside of the three gear twos (34).

6. The process for preparing a solid shock-absorbing racket embryo according to claim 3, characterized in that: The driving clutch mechanism (4) comprises a vertical plate (41) fixed on the top of the mounting seat (1), one side of the vertical plate (41) is rotatably connected to a connecting rod (42), one end of the connecting rod (42) is fixed to one side of a gear (33), one side of the vertical plate (41) is also rotatably connected to a driving rod (43), one end of the connecting rod (42) and the driving rod (43) both pass through the vertical plate (41) and extend to the outside of the vertical plate (41), one end of the connecting rod (42) and the outer surface of the driving rod (43) are both fixed with pulleys (44), and the two pulleys (44) are connected by a belt (45) for transmission.

7. The process for preparing a solid shock-absorbing racket embryo according to claim 6, characterized in that: A horizontal plate (46) is fixed on one side of the vertical plate (41), a motor (47) is fixed on the horizontal plate (46), the motor (47) drives the driving rod (43) to rotate, an outer gear ring (48) is fixed on one side of the annular frame (22), a gear three (49) is arranged on one side of the outer gear ring (48), the gear three (49) is meshed with the outer gear ring (48), a circular groove (410) is provided inside the gear three (49), four slots (411) are provided on the inner wall of the circular groove (410), and a clutch block (412) is slidably connected to the driving rod (43).

8. The process for preparing a solid shock-absorbing racket embryo according to claim 7, characterized in that: Four clamping blocks (413) are fixed on the outer surface of the clutch block (412), the outer surface of the clutch block (412) is rotatably connected to the inner surface of the circular groove (410), one side of the four clamping blocks (413) extends to the inside of the clamping groove (411), two limiting grooves (414) are provided inside the clutch block (412), limiting strips (416) are fixed on the top and bottom of the driving rod (43), the two limiting strips (416) extend to the inside of the limiting groove (414), and the outer surface of the limiting strip (416) is slidably connected to the inner surface of the limiting groove (414), and a handle (415) is fixed on one side of the clutch block (412).

9. The process for preparing a solid shock-absorbing racket embryo according to claim 1, characterized in that: The hot pressing equipment in step five comprises a base (5), a molding seat (6) is fixed on the top of the base (5), a mounting frame (7) is fixed on the top of the base (5), a cylinder (8) is fixed on the top of the mounting frame (7), a movable plate (9) is fixed on the output end of the cylinder (8), and a hot pressing plate (10) is installed on the bottom of the movable plate (9).

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