Pick racket and preparation method thereof

Abstract

According to the Pick racket and the preparation method thereof, the panel layer of the Pick racket contains the reinforcing particles, and the reinforcing particles and the racket face are fused into a whole through hot pressing; the reinforced particles are added and fused with the racket surface, and the hard reinforced particles are added to the racket surface, so that the racket surface is more wear-resistant; the service life of the racket is prolonged.

Description

A Peak racket and its manufacturing method Technical Field

[0001] This application relates to the field of sports equipment technology, and in particular to a Peak racket and its manufacturing method. Background Technology

[0002] Peakball is a relatively new sport, a combination of tennis, badminton, and table tennis. It has rapidly gained popularity worldwide in recent years. The racket used is the core equipment of the sport, and its performance directly affects the athlete's hitting effect, control accuracy, and comfort. Generally, Peak racket faces are often made with abrasive cloth pressed into a hydraulic press to create a rough feel. However, this process results in uneven coarseness of the carbon fiber in the racket face. Furthermore, during actual use, the racket face is subjected to prolonged impact and friction, making it prone to damage. Once damaged, uneven stress on the racket surface leads to a decrease in the quality of the shot and introduces unpredictability. Therefore, improving the quality of the Peak racket face helps extend the lifespan of the racket and enhance the user experience. Summary of the Invention

[0003] This application provides a Peak racket and its manufacturing method to solve the problems existing in the related technology. The technical solution is as follows: Firstly, this application provides a Peak racket, which includes a racket body, side strips, and a handle; the racket body includes a core, a panel layer on the surface of the core, and a protective strip covering the side of the core; the panel layer includes a substrate layer and a braided cloth layer; and reinforcing particles are distributed between the substrate layer and the braided cloth layer.

[0004] In one embodiment, the reinforcing particles are any one of solid ceramic microspheres, boron nitride, alumina, zircon, tungsten carbide, glass microspheres, brown corundum, emery, corundum, quartz sand, garnet sand, feldspar sand, steel shot, or iron shot.

[0005] In one embodiment, diamond powder is distributed between the substrate layer and the abrasive cloth layer.

[0006] In one embodiment, the silicon carbide has a mesh size of 10-200; the density of the silicon carbide distributed between the carbon fiber layer and the abrasive cloth layer is 33-47 g / m³. 2 .

[0007] In one embodiment, the substrate layer is carbon fiber cloth, glass fiber cloth, or a composite material.

[0008] In one embodiment, the substrate layer contains a dye.

[0009] In one embodiment, the carbon fiber cloth, glass fiber cloth, or composite material has three or more layers, which are bonded together at 90°.

[0010] In one embodiment, at least one side of the laminated fiber cloth is reinforced with 303# fiberglass cloth.

[0011] In one embodiment, the core material is any one of polypropylene honeycomb, aramid honeycomb, aluminum honeycomb, MPP, or EPP.

[0012] In one embodiment, the specifications of the abrasive cloth are 50D-300D.

[0013] In one embodiment, the protective strip material is any one of PVC, TPU, PET, or TPV.

[0014] Secondly, this application provides a method for preparing a Peak racket, comprising the following steps: coating the surface of a substrate layer with an adhesive, and spraying diamond abrasive onto the adhesive using an electrostatic sand-coating method or a spraying method; then covering it with abrasive cloth and performing a first hot pressing to obtain a panel layer material; cutting the core material and the panel layer material into a racket shape; placing the cut panel layer on the surface of the core to obtain a racket blank; and performing a second hot pressing or cold pressing on the racket blank to obtain the Peak racket.

[0015] In one embodiment, electrostatic sand planting is accomplished by flocking machine nozzle-type flocking or spraying equipment.

[0016] In one embodiment, the adhesive is an epoxy resin.

[0017] In one embodiment, the steps include printing a pattern on the surface of the racket, installing a protective strip, installing a handle, and installing a handle protection strap.

[0018] In one embodiment, the pressure of the first hot press is 30-40 kg; the temperature is 140-160 °C; and the hot press time is 100-120 min.

[0019] In one embodiment, the pressure of the second hot pressing is 95-105KG, the temperature is 130-160℃, and the hot pressing time is 25-30min; the pressure of the cold pressing is 45-55KG, and the time is 8-24h.

[0020] In one embodiment, the protective strip is integrally formed with the racket body by hot pressing; the hot pressing is carried out by liquid injection into a hot pressing mold: the racket blank is placed in the hot pressing mold, and a space is left between the side of the racket body and the periphery of the hot pressing mold. Liquid protective strip material is injected into the space, and hot pressing is performed. After cooling, the protective strip material solidifies and fuses with the racket body.

[0021] In one embodiment, a space is left between the side of the paddle body and the inner periphery of the hot pressing mold, and the distance between the side of the paddle body and the inner periphery of the hot pressing mold is adjusted according to the thickness of the edge strip; the mold also includes an injection hole and an vent hole, which are connected to the internal space of the mold and are located on both sides of the mold handle.

[0022] The advantages or beneficial effects of the above technical solution include at least the following: The Peak racket of this application contains diamond abrasive in the face layer, and through pressing, the diamond abrasive particles and the racket face are fused together. The addition of diamond abrasive and its fusion with the racket face, along with the addition of hard diamond abrasive to the racket face, makes the racket face more wear-resistant; and makes the racket's friction durable and able to meet the needs of different hitting scenarios.

[0023] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0025] Figure 1 is a structural diagram of the panel layer; from left to right: carbon fiber cloth, carbon fiber cloth surface sprayed with diamond abrasive, and panel layer covered with abrasive cloth. Figure 2 is an appearance diagram of the racket surface after the panel layer material of this application is cut; Figure 3 is an appearance diagram of the mold of this application; Figure 4 is a state diagram of the racket blank of this application placed in the mold; Figure 5 is a schematic diagram of the state after the injection of this application; Figure 6 is a schematic diagram of the racket with the edge strip covering the racket body prepared in Example 4; Figure 7 is a schematic diagram of the three layers of carbon fiber cloth being bonded at 90°; Figure 8 is a schematic diagram of the two sides being shaped and reinforced with 303# fiberglass cloth after the three layers of carbon fiber cloth are bonded at 90°. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0027] This application provides a Peak racket, which includes a racket body, side strips, and a handle; the racket body includes a core, a panel layer on the surface of the core, and a protective strip covering the side of the core; the panel layer includes a substrate layer and a braided cloth layer; and reinforcing particles are distributed between the substrate layer and the braided cloth layer.

[0028] The Peak racket of this application incorporates harder reinforcing particles on the surface of the racket body, making the racket surface more wear-resistant. Furthermore, these reinforcing particles are adhered to the substrate layer and the abrasive cloth layer using an adhesive. This adhesive adhesion allows the abrasive particles to fuse seamlessly with the substrate material. Simultaneously, it reduces racket friction during swings, preventing the abrasive particles from easily falling off, thus ensuring the racket's durability and longevity to meet the needs of various hitting scenarios. As one embodiment, the reinforcing particles have a mesh size of 10-200.

[0029] In one embodiment, the reinforcing particles are any one of solid ceramic microspheres, boron nitride, alumina, zircon, tungsten carbide, glass microspheres, brown corundum, and emery. Preferably, the alumina is α-Al₂O₃. In another embodiment, the reinforcing particles can also be any one of corundum, quartz sand, garnet sand, feldspar sand, or steel shot, iron shot, or steel grit. Preferably, the corundum is any one of brown corundum, white corundum, chromium corundum, and zirconium corundum.

[0030] In one embodiment, when the reinforcing particles are silicon carbide, the silicon carbide is any one of black silicon carbide, green silicon carbide, or cubic silicon carbide. Preferably, the density of the silicon carbide distributed between the carbon fiber layer and the abrasive cloth layer is 33-47 g / m³. 2 The addition of the aforementioned specifications and content of corundum greatly enhances the wear resistance of the racket face.

[0031] As one embodiment, the core material is any one of polypropylene honeycomb, aramid honeycomb, aluminum honeycomb, MPP or EPP.

[0032] As one implementation method, the specifications of the abrasive cloth are 50D-300D.

[0033] In one embodiment, the substrate layer is carbon fiber cloth, glass fiber cloth, or a composite material.

[0034] In one embodiment, the substrate layer contains a dye. The dye is bonded to the substrate layer material. In this embodiment, the carbon fiber cloth, glass fiber cloth, or composite material is itself a colored commodity.

[0035] In another embodiment, the dye is an oil-soluble dye of any color. The method for preparing the dye-containing carbon fiber cloth or glass fiber cloth is to impregnate glass fiber and carbon fiber in a resin containing dye, and cure it in the presence of a curing agent to obtain the dye-containing carbon fiber cloth or glass fiber cloth. In this embodiment, the mass ratio of resin to dye is 100:(0.05-0.3).

[0036] In one embodiment, the carbon fiber cloth, glass fiber cloth, or composite material has three or more layers. Preferably, three or more layers of fiber cloth are laminated into a single fiberboard. In one embodiment, at least one side of the fiberboard is reinforced with 303# glass fiber cloth (as shown in Figure 8). In one embodiment, the fiber cloth is laminated at 90° (as shown in Figure 7). A 90° laminate is perpendicular to the main force direction, with three-way 90° pressing, which can constrain the lateral deformation of the fiberboard. Three 90° layers ensure uniform mechanical strength of the fiber layers in the X, Y, and Z directions, replacing traditional layering to improve racket stiffness, stability, and durability, and increasing torsional and deformation resistance. In one embodiment, when using three or more layers of fiber cloth laminated into a fiberboard as the substrate layer, reinforcing particles are distributed between the substrate layer and the abrasive cloth layer, or not.

[0037] As one embodiment, the protective strip material is any one of PVC, TPU, PET, or TPV.

[0038] In one embodiment, the diamond powder has a mesh size of 10-200.

[0039] In one implementation method, the density of the corundum distributed between the carbon fiber layer and the abrasive cloth layer is 33-47 g / m³. 2 The distribution density can be adjusted according to practical needs. This application also provides a method for preparing a Peak racket, including the following steps: coating the surface of the substrate layer with an adhesive, and spraying diamond abrasive onto the adhesive using an electrostatic sand-coating method or a spraying method; then covering it with abrasive cloth, and performing a first hot pressing to prepare a panel layer material; cutting the core material and the panel layer material into a racket shape; and placing the cut panel layer on the surface of the core to obtain a racket blank; and performing a second hot pressing or cold pressing on the racket blank to obtain the Peak racket.

[0040] In this application, when manufacturing the racket, the core material, such as polypropylene honeycomb, aramid honeycomb, or aluminum honeycomb, needs to be cut into the racket shape; and the material of the face layer is also cut into the corresponding racket shape (as shown in Figure 2). The shape of the racket can be specifically set according to the needs of the product; it can be a standard Peak racket or some non-standard, specific-shaped racket. There are no specific restrictions on the method of material cutting.

[0041] The panel layer material of this application is a material containing corundum. The corundum is distributed between the substrate layer and the abrasive cloth layer. During preparation, an adhesive is first coated onto the surface of the carbon fiber cloth to form an adhesion surface. Then, corundum is sprayed onto the adhesive using an electrostatic sand-coating method; thus, the corundum adheres to the surface of the carbon fiber cloth. Next, abrasive cloth is placed over the corundum surface, and the panel material is formed by pressing (the process is shown in Figure 1). In one embodiment, corundum is either sprayed onto the adhesive surface using an electrostatic spray gun or a pneumatic sandblasting machine. In this embodiment, the reinforcing particles can be sprayed using the above methods.

[0042] In one embodiment, the pressing pressure is 30-40 kg; the temperature is 140-160°C; and the hot-pressing time is 100-120 min. More preferably, the adhesive is epoxy resin; the epoxy resin content is RC50%. As one embodiment, the epoxy resin used in this application was purchased from Jiangshan Composite Materials Technology (Guangdong) Co., Ltd.

[0043] As one implementation method, electrostatic sand planting is completed by flocking machine nozzle-type flocking or spraying equipment.

[0044] Electrostatic flocking is accomplished using a flocking machine with a nozzle. When the power is connected, the tens of thousands of volts of high-voltage static electricity generated by the flocking machine is output to the nozzle. The flock fibers in the nozzle become negatively charged. Then, adhesive is sprayed onto the surface of the carbon fiber cloth. Moving the nozzle closer to the carbon fiber cloth causes the abrasive particles to rise from the nozzle under the influence of the high-voltage electric field and land vertically on the adhesive-coated surface.

[0045] It can also be sprayed evenly directly by spraying equipment.

[0046] One implementation method also includes steps such as printing a pattern on the racket surface, installing a protective strip, installing a handle, and installing a handle protection strap.

[0047] As one implementation method, the second hot pressing pressure is 95-105KG, the temperature is 130-160℃, and the hot pressing time is 25-30min; the cold pressing pressure is 45-55KG, and the time is 8-24h.

[0048] In one embodiment, the protective strip is integrally formed with the racket body by hot pressing; the hot pressing is carried out by liquid injection into a hot pressing mold: the racket blank is placed in the hot pressing mold, and a space is left between the side of the racket body and the periphery of the hot pressing mold. Liquid protective strip material is injected into the space, and hot pressing is performed. After cooling, the protective strip material solidifies and fuses with the racket body.

[0049] Existing Peak rackets often have pre-made protective strips that are bonded to the sides of the racket body using adhesives such as epoxy resin during manufacturing, thus protecting the racket. However, this presents two problems: firstly, the adhesive-installed protective strip can affect the racket's appearance and performance; secondly, improper adhesion can cause the strip to twist or shift, affecting the overall aesthetics of the racket; and thirdly, uneven or incomplete adhesion, leaving gaps between the strip and the racket body, can cause vibrations during swings, impacting the user's performance. A solution is to integrally mold the protective strip with the racket body, avoiding issues of incomplete connection and weak protection.

[0050] As one implementation method, a space is left between the side of the paddle body and the inner periphery of the hot pressing mold, and the distance between the side of the paddle body and the inner periphery of the hot pressing mold is adjusted according to the thickness of the protective strip.

[0051] The mold also includes an injection hole and an vent hole, which are connected to the internal space of the mold and are located on both sides of the mold handle.

[0052] Specifically, the racket blank is placed in the hot press mold, with a space left between the side of the racket body and the periphery of the hot press mold. Liquid protective strip material is poured into the space, and hot pressing is performed. After cooling, the protective strip material solidifies and fuses with the racket body.

[0053] In the existing technology, the paddle body is placed inside a hot pressing mold, and the mold and the paddle blank fit together perfectly, meaning there are no gaps between the paddle blank and the mold. Therefore, after hot pressing, a separately prepared protective strip needs to be adhered to the side using an adhesive.

[0054] In this application, the area of ​​the mold is larger than that of the paddle blank. Therefore, after the paddle blank is placed in the hot-pressing mold, a certain space is left between the paddle blank and the inner perimeter of the mold. The size of this space is reserved for the preparation of the protective strip (as shown in Figure 4). Therefore, the size of the space can be adjusted by redesigning the mold according to the required size of the protective strip. Thus, as one embodiment, a space is left between the side of the paddle body and the inner perimeter of the hot-pressing mold, and the distance between the side of the paddle body and the inner perimeter of the hot-pressing mold is adjusted according to the thickness of the protective strip.

[0055] In this application, liquid protective strip material is injected into the reserved space. When the liquid protective strip material fills the entire space, it forms the shape of a protective strip under the constraint of the mold (as shown in Figure 5). After hot pressing, the protective strip material covers and fuses the side of the racket body. After cooling, it forms a solidified protective strip fused with the racket body, thereby preparing the Peak racket.

[0056] In one implementation, the protective strip is flush with or slightly covers the racket face. When the protective strip is flush with the racket body, the injected raw material is at the same height as the racket body; when the protective strip slightly covers the racket face, the injected raw material covers the edge of the racket body.

[0057] In one embodiment, the mold further includes an injection hole and a vent hole, which are connected to the internal space of the mold. When the blank is placed in the hot-press mold, a certain space remains between the blank and the mold's perimeter. Liquid protective strip material can be injected into the mold space through the injection hole. To ensure the liquid material fills the entire space, a vent hole is also required. To ensure complete venting, the injection hole and vent hole are typically located at the two ends of the space within the mold. In this embodiment, the injection hole and vent hole are located on both sides of the mold handle. The injection hole and vent hole are separated by the mold handle. Liquid protective strip material is injected through the injection hole on one side of the handle, and the rest is discharged through the vent hole at the tail end. As injection continues, the liquid protective strip material reaches the vent hole on the other side of the handle, thus filling the entire space.

[0058] The following specific examples will provide further details.

[0059] Example 1: A layer of epoxy resin is coated on the surface of carbon fiber cloth. 100-mesh diamond abrasive is sprayed onto the adhesive using an electrostatic sand-coating method. Then, 200D abrasive cloth is covered on the diamond abrasive, and the surface material is formed by hot pressing at 150°C for 110 minutes under 35KG pressure. The core material, polypropylene (PP) honeycomb, and the surface material are cut into racket shapes, and the cut carbon fiber cloth is covered on the surface of the cut polypropylene core to form a racket blank. The racket blank is placed in a mold and hot-pressed at 150°C for 110 minutes under 100KG pressure, fusing the polypropylene and carbon fiber cloth surface layers into a single unit to form the racket body. After cooling and molding, patterns are printed on the racket surface, protective strips are installed, the handle is installed, and a handle protection strap is installed to obtain the Peak racket.

[0060] Example 2: A layer of epoxy resin is coated on the surface of carbon fiber cloth. 10-mesh diamond abrasive is sprayed onto the adhesive using an electrostatic sand-coating method. Then, 300D abrasive cloth is covered on the diamond abrasive, and the surface material is formed by hot pressing at 140°C for 100 minutes under 40KG pressure. The core material, polypropylene (PP) honeycomb, and the surface material are cut into racket shapes, and the cut carbon fiber cloth is covered on the surface of the cut polypropylene core to form a racket blank. The racket blank is placed in a mold and hot-pressed at 160°C for 100 minutes under 95KG pressure, fusing the polypropylene and carbon fiber cloth surface layers into a single unit to form the racket body. After cooling and molding, patterns are printed on the racket surface, protective strips are installed, the handle is installed, and a handle protection strap is installed to obtain the Peak racket.

[0061] Example 3: A layer of epoxy resin is coated on the surface of the fiberglass cloth. 200-mesh corundum is sprayed onto the adhesive using an electrostatic sand-coating method. Then, 50D abrasive cloth is covered on the corundum, and the plate layer material is formed by hot pressing at 160°C for 120 minutes under 30KG pressure. The core material, aluminum honeycomb, and the plate layer material are cut into racket shapes, and the cut carbon fiber cloth is covered on the surface of the cut aluminum honeycomb core to form a racket blank. The racket blank is placed in a mold and cold-pressed at room temperature for 16 hours under 50KG pressure, fusing the aluminum honeycomb and fiberglass cloth plate layer into one piece to form the racket body. After cooling and molding, patterns are printed on the racket surface, protective strips are installed, the handle is installed, and the handle protection strap is installed to obtain the Peak racket.

[0062] Example 4: A layer of epoxy resin is coated onto the surface of carbon fiber cloth. 100-mesh diamond abrasive is sprayed onto the adhesive using an electrostatic sand-coating method. Then, 200D abrasive cloth is placed on top of the diamond abrasive, and the mixture is hot-pressed at 150°C for 110 minutes under 35KG pressure to form the panel layer material. The aramid honeycomb core material and the panel layer material are cut into racket shapes, and the cut carbon fiber cloth is placed over the cut aramid core surface to form a racket blank. The racket blank is placed in a mold, with a 3mm gap between the perimeter of the blank and the inner perimeter of the mold, forming a filling space. Liquid PVC, the protective strip material, is poured into the mold through the filling port, covering the edges of the racket body. Under 100KG pressure and hot-pressed at 150℃ for 110min, the aramid and the panel layer are fused together to form the racket body; the liquid PVC material of the protective strip is also fused with the racket body, and after hot pressing and cooling, it is formed into a protective strip that wraps around the side of the racket body and covers a small area of ​​the racket surface (as shown in Figure 6); the pattern is printed on the surface of the racket, the handle is installed, the handle protective strip is installed, and the Peak racket is prepared.

[0063] In Example 5, 0.1 parts of BASF dye 335 were added to every 100 parts of resin, and the mixture was stirred at a low speed of 500-1000 rpm until the dye molecules were completely dissolved in the resin. Then, a curing agent was added and stirred evenly before the carbon fiber prepreg was processed into colored carbon fiber cloth. A layer of epoxy resin is coated on the surface of carbon fiber cloth. 100-mesh diamond abrasive is sprayed onto the adhesive using an electrostatic sand-coating method. Then, 200D abrasive cloth is covered on the diamond abrasive, and the surface material is formed by hot pressing at 150°C for 110 minutes under 35KG pressure. The core material, polypropylene (PP) honeycomb, and the surface material are cut into racket shapes, and the cut carbon fiber cloth is covered on the surface of the cut polypropylene core to form a racket blank. The racket blank is placed in a mold and hot-pressed at 150°C for 110 minutes under 100KG pressure, fusing the polypropylene and carbon fiber cloth surface layers into a single unit to form the racket body. After cooling and molding, patterns are printed on the racket surface, protective strips are installed, the handle is installed, and a handle protection strap is installed to obtain the Peak racket.

[0064] In Example 6, three layers of carbon fiber cloth were bonded to a carbon fiber plate at 90° angles. A layer of 303# fiberglass cloth was added to each side of the carbon fiber plate, and then cut into a racket shape. The core material, polypropylene (PP) honeycomb, and the panel material were cut into racket shapes, and the cut carbon fiber cloth was covered on the surface of the cut polypropylene core to form a racket blank. The racket blank was placed in a mold and hot-pressed at 150°C for 110 minutes under 100KG pressure, until the polypropylene, carbon fiber cloth, and panel layers fused together to form the racket body. After cooling and molding, patterns were printed on the racket surface, protective strips were installed, a handle was installed, and a handle protection strap was installed to prepare the Peak racket.

[0065] Example 7: A layer of epoxy resin is coated on the surface of carbon fiber cloth. 100-mesh solid ceramic microspheres are evenly sprayed onto the adhesive using a pneumatic sandblasting machine. Then, 200D abrasive cloth is covered on the diamond abrasive, and the plate layer material is formed by hot pressing at 150°C for 110 minutes under 35KG pressure. The core material, polypropylene (PP) honeycomb, and the plate layer material are cut into racket shapes, and the cut carbon fiber cloth is covered on the surface of the cut polypropylene core to form a racket blank. The racket blank is placed in a mold and hot-pressed at 150°C for 110 minutes under 100KG pressure, fusing the polypropylene and carbon fiber cloth plate layers into a single unit to form the racket body. After cooling and molding, patterns are printed on the racket surface, protective strips are installed, the handle is installed, and a handle protection strap is installed to prepare the Peak racket.

[0066] Comparative Example 1: A layer of epoxy resin was coated on the surface of carbon fiber cloth, covered with 200D abrasive cloth, and hot-pressed at 150°C for 110 minutes under 35KG pressure to form the panel material; the core material, polypropylene (PP) honeycomb, and the panel material were cut into racket shapes, and the cut carbon fiber cloth was covered on the surface of the cut polypropylene core to form a racket blank; the racket blank was placed in a mold and hot-pressed at 150°C for 110 minutes under 100KG pressure to fuse the polypropylene and carbon fiber cloth panel layers into one piece to form the racket body; after cooling and molding, patterns were printed on the racket surface, protective strips were installed, the handle was installed, and the handle protection strap was installed to prepare the Peak racket.

[0067] Performance Testing: The Peak rackets of Example 1 and Comparative Example 1 were subjected to cyclic abrasion tests according to ASTM G195-22 at (23±2)℃ and RH of (50±5)%. The rotation speed was 60 rpm, and the number of abrasion cycles was 3000. Mass loss and thickness loss of the rackets were measured every 1000 cycles. The results are shown in Table 1: Table 1

[0068] The method described in this application produces a Peak racket with a face plate containing diamond powder. Through pressing, the diamond powder particles and the racket face are fused together, which enhances the strength of the racket surface, makes the racket face more wear-resistant, and extends the service life of the racket.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0070] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0071] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A Peak racket, characterized in that, The Peak racket includes a racket body, side strips, and a handle; the racket body includes a core, a panel layer on the surface of the core, and a protective strip covering the sides of the core; the panel layer includes a substrate layer and a braided cloth layer; and reinforcing particles are distributed between the substrate layer and the braided cloth layer.

2. A Peak racket according to claim 1, characterized in that, The reinforcing particles are any one of solid ceramic microspheres, boron nitride, alumina, zircon, tungsten carbide, glass microspheres, brown corundum, emery, corundum, quartz sand, garnet sand, feldspar sand, steel shot, or iron shot.

3. A Peak racket according to claim 1, characterized in that, The reinforcing particles are corundum; the corundum has a mesh size of 10-200; the density of the corundum distributed between the carbon fiber layer and the abrasive cloth layer is 33-47 g / m³. 2 .

4. A Peak racket according to any one of claims 1-3, characterized in that, The core material is any one of polypropylene honeycomb, aramid honeycomb, aluminum honeycomb, MPP or EPP; the abrasive cloth specification is 50D-300D; the substrate layer is carbon fiber cloth, glass fiber cloth or composite material; the protective strip material is any one of PVC, TPU, PET, TPV.

5. A Peak racket according to claim 1, characterized in that, The substrate layer contains dye.

6. A Peak racket according to claim 1, characterized in that, The carbon fiber cloth, glass fiber cloth, or composite material has three or more layers, which are bonded together at 90°.

7. A Peak racket according to claim 6, characterized in that, At least one side of the laminated fiber cloth is reinforced with 303# fiberglass cloth.

8. The method for manufacturing a Peak racket according to any one of claims 1-7, characterized in that, The process includes the following steps: coating the substrate surface with an adhesive, and then spraying diamond abrasive onto the adhesive using an electrostatic sand-coating method or a spraying method; covering the substrate with abrasive cloth and performing a first hot pressing to obtain the panel layer material; cutting the core material and the panel layer material into a racket shape; and placing the cut panel layer on the core surface to obtain the racket blank. The racket blank is subjected to a second hot pressing or cold pressing to obtain the Peak racket.

9. The method for manufacturing a Peak racket according to claim 8, characterized in that, The first hot pressing pressure is 30-40KG; the temperature is 140-160℃; the hot pressing time is 100-120min; the second hot pressing pressure is 95-105KG; the temperature is 130-160℃; the hot pressing time is 25-30min; the cold pressing pressure is 45-55KG; the time is 8-24h.

10. The method for preparing a Peak racket according to claim 8, characterized in that, The protective strip is integrally formed with the racket body by hot pressing; the hot pressing is carried out by liquid injection in a hot pressing mold: the racket blank is placed in the hot pressing mold, and a space is left between the side of the racket body and the periphery of the hot pressing mold. Liquid protective strip material is injected into the space, and hot pressing is performed. After cooling, the protective strip material solidifies and fuses with the racket body.

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