Pick racket and manufacturing process thereof

Abstract

The invention relates to a Pick racket and a manufacturing process thereof in the field of Pick rackets, the Pick racket comprises a honeycomb core material, a carbon fiber panel and a carbon fiber bottom plate, an accommodating cavity is formed in the middle of a racket surface part of the honeycomb core material, and the accommodating cavity is tightly filled with a plurality of elastic strips for increasing the elasticity of the racket surface; the elastic strip is composed of a strip-shaped foaming rod and a carbon fiber wrapping shell wrapping the surface of the strip-shaped foaming rod. The manufacturing process of the Pick racket comprises the following steps of (1) preparing materials, (2) installing an elastic strip, (3) pressing and forming, and (4) assembling a finished product. The strip-shaped foaming rod is wrapped by the carbon fiber wrapping shell, it is guaranteed that the whole elastic strip has good supporting performance and rebound resilience, the strip-shaped foaming rod is used for improving the rebound resilience of the racket face part, better rebound resilience can be generated in the badminton playing process of the racket, and the whole racket face part is good in elasticity and moderate in hardness; and the ball can be quickly hit out without too large ball return force in the ball hitting process.

Description

Technical Field

[0001] The invention relates to the field of pickle ball rackets, and in particular to a pickle ball racket and a manufacturing process thereof. Background Art

[0002] Pickleball is a racket sport that combines the characteristics of badminton, tennis and table tennis. The pickleball racket is the key tool used in playing pickleball. Its material, weight and grip will affect the performance of the player. Choosing the right pickleball racket is crucial to improving the hitting effect and enjoying the fun of the sport.

[0003] There are many materials available for the existing pickleball rackets, including lightweight and strong carbon fiber plates, economical fiberglass, EVA materials, PE materials, honeycomb paper, mixed materials and carbon fiber plates. Racks made of different materials vary in weight, durability and feel, and players can choose according to their needs and preferences. At the same time, rackets made of different materials also have different manufacturing processes.

[0004] According to the characteristics of the pickle ball racket, it can be divided into a ball control racket and a power racket. The main function of the ball control racket is how the player can control the ball in front of the net, and use the time that the ball stays on the racket face for a little longer, so that the player has time to adjust the angle of the racket face, and let the ball go to the destination that the player wants to go. The process requirements of the racket are that the racket face is moderate, not too hard, and not too soft. The ball can feel that it stays on the racket face, and the player has time to adjust the angle of the racket face to control the direction of the ball. This is called a ball control racket. The power racket is mainly used to attack or let the ball hit back to the opponent quickly, and the faster the return, the better, because the fast return makes it difficult for the opponent to see the direction of the ball, and the opponent has no power to fight back. This kind of racket requires high overall strength and rigidity, and the racket face has good elasticity and moderate hardness. The human arm does not need too much return force to hit the ball quickly. The hitting speed is twice as fast as the ball control racket, and it is effortless, which is called a power racket.

[0005] In order to improve the elasticity of the racket face of a pickle ball racket, during the production process, an elastic material such as foam will be filled inside the racket face. In the prior art, the structure of a pickle ball racket filled with foam includes a foam core, a carbon fiber panel and a carbon fiber bottom plate. The carbon fiber panel and the carbon fiber bottom plate are respectively pasted on the top and bottom surfaces of the foam core material, and the entire board surface is filled with the foam core material. The advantages of this structure are that the overall lightness and the overall resilience of the racket face are good, but the disadvantages are also obvious. Since the foam core material is relatively soft as a whole, there is a lack of supporting structure inside the racket face, which results in the entire racket face not having supporting performance. The racket face collapses and deforms due to long-term hitting of the ball. After the racket face collapses and deforms, the entire pickle ball racket will be scrapped. At the same time, the manufacturing process of this pickle ball racket is also relatively simple. The foam material is directly used to foam it into the shape of the racket face through a foaming mold, and then the carbon fiber panel and the carbon fiber bottom plate are respectively pasted on the top and bottom surfaces of the foam core material by glue, and then they are pressed and cured, and finally wrapped with edge strips and hand glue. The traditional manufacturing process for producing pickle ball rackets filled with foam has the following defects: the foam core material is pre-made and pre-formed, and during the sealing and pressing process of pasting the carbon fiber face plate and the carbon fiber bottom plate, gaps are easily left inside the racket surface, resulting in the racket surface not being completely filled with the foam core material. The gaps left during the manufacturing process cause hollowness or abnormal noise, making it difficult to ensure product quality. Summary of the invention

[0006] The first purpose of the present invention is to solve the above defects and provide a pickle ball racket that can produce better resilience, solving the technical problem in the prior art that the racket surface is too hard, resulting in poor elasticity of the racket surface and thus poor rebound during the hitting process.

[0007] The first object of the present invention is achieved by the following methods:

[0008] A pickle ball racket comprises a honeycomb core material, a carbon fiber panel and a carbon fiber bottom plate, wherein the carbon fiber panel and the carbon fiber bottom plate are respectively fixedly attached to the top surface and the bottom surface of the honeycomb core material, and the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate all comprise a racket portion and a handle portion, wherein the handle portion extends outwardly along one end of the racket portion, and an accommodating cavity is provided in the middle of the racket portion of the honeycomb core material, and a plurality of elastic strips for increasing the elasticity of the racket surface are tightly filled in the accommodating cavity, and the elastic strips will completely fill the entire accommodating cavity, and the elastic strips are composed of a strip-shaped foam rod and a carbon fiber wrapping shell wrapped around the surface of the strip-shaped foam rod.

[0009] Furthermore, there are more than three accommodating cavities, the number of elastic strips is consistent with the number of accommodating cavities, the extension direction of the accommodating cavities is consistent with or perpendicular to the extension direction of the handle portion, and a spacing is left between two adjacent accommodating cavities.

[0010] Furthermore, there are two groups of accommodating cavities in total, the two groups of accommodating cavities are symmetrically arranged, and there is a spacing between the two groups of accommodating cavities. Each group of accommodating cavities is provided with more than three accommodating cavities, the number of elastic strips is consistent with the number of accommodating cavities, the extension direction of the accommodating cavities is consistent with or perpendicular to the extension direction of the handle part, and there is a spacing between two adjacent accommodating cavities.

[0011] Furthermore, there is a total of one accommodating cavity, and there are a total of a plurality of elastic strips, which are closely arranged with each other, and the extending direction of the elastic strips is consistent with or perpendicular to the extending direction of the handle portion.

[0012] Furthermore, a first non-woven fabric layer is bonded between the top surface of the honeycomb core material and the carbon fiber panel by glue, and a second non-woven fabric layer is bonded between the bottom surface of the honeycomb core material and the carbon fiber bottom plate by glue. Adding the first non-woven fabric layer and the second non-woven fabric layer can increase the stability of the honeycomb core material, and fully wrap the top and bottom surfaces of the honeycomb core material to ensure that the honeycombs of the honeycomb core material are tightly connected and not easily deformed.

[0013] Furthermore, the strip-shaped foam rod is made of PU foam or ETPU foam.

[0014] ETPU foam material: ETPU (Expanded Thermoplastic Polyurethane) is a new type of TPU foam material with high resilience foam particles obtained by changing the structure of TPU (thermoplastic polyurethane). Its preparation process usually involves pre-treatment of TPU with pressurized heating under the action of supercritical carbon dioxide, so that it expands like popcorn to form non-cross-linked foam particles containing micro-enclosed bubbles.

[0015] ETPU foam material has the characteristics of high resilience, good environmental protection, wear resistance, tear resistance, light weight, low molding pressure, and temperature resistance. The resilience of foamed TPU can reach more than 61%, far exceeding that of general elastic materials. The entire preparation process is green and environmentally friendly. The material itself is degradable and has low density. The density range of 0.15-0.25g / cm 3 The foamed TPU particles maintain good performance in a wide temperature range.

[0016] PU foam material: PU (Polyurethane) is a new organic polymer material, known as the "fifth largest plastic". PU foam material is made by mixing polyurethane raw materials with foaming agents, catalysts, etc., and then undergoing a foaming reaction under certain conditions.

[0017] PU foam material has the characteristics of diversity, thermal insulation and waterproofness. By modifying the formula, different physical properties such as density, elasticity, rigidity, etc. can be obtained. It has good thermal insulation performance, dense microporous foam structure and high impermeability.

[0018] Furthermore, the sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are wrapped with carbon fiber edging, which is combined with the carbon fiber panel and the carbon fiber bottom plate to form an integrated structure, which is used to fully wrap the honeycomb core material, ensuring that the whole has hardness and is not easy to deform. The sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate are wrapped with edge strips, which are glued to the outer surface of the carbon fiber edging by glue. The edge strips are used to protect the sides of the racket face.

[0019] Furthermore, a reinforcing plate is provided on the side of the connection area between the racket portion and the handle portion of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate, and the reinforcing plate is wrapped with the carbon fiber edging.

[0020] Furthermore, the handle portion of the honeycomb core material, carbon fiber panel and carbon fiber bottom plate is provided with a grip splint and an end cover, and is provided with a hand grip for wrapping around the grip splint.

[0021] The second purpose of the present invention is to solve the above defects and provide a manufacturing process for a pickle ball racket, which can produce a pickle ball racket with better resilience, solving the technical problem that the pickle ball racket produced in the prior art has a too hard racket surface, resulting in poor elasticity of the racket surface.

[0022] The second object of the present invention is achieved by the following methods:

[0023] A manufacturing process for a pickleball racket, the manufacturing process is used to manufacture a pickleball racket, and the manufacturing process comprises the following steps:

[0024] The first step is to prepare materials, such as honeycomb core material, carbon fiber panel and carbon fiber bottom plate. The whole plate-shaped honeycomb core material is cut into the shape of a racket with a racket face and a handle. The top and bottom surfaces of the honeycomb core material are respectively pasted with a first non-woven fabric layer and a second non-woven fabric layer. At the same time, a receiving cavity is cut on the racket face of the honeycomb core material. The carbon fiber panel and the carbon fiber bottom plate are both hot-pressed by carbon fiber prepreg to become a thin sheet material in the shape of a racket with a racket face and a handle. The elastic strip is made by a foaming mold. The carbon fiber wrapped shell is wrapped with a foaming material. The carbon fiber wrapped shell wrapped with the foaming material is placed in a foaming mold for heating and foaming. The foaming material is foamed to form a strip-shaped foaming rod, so that the foaming material will completely fill the entire carbon fiber wrapped shell after foaming. The foaming mold is used to accurately control the shape and size of the elastic strip.

[0025] The second step is to install the elastic strips. When there is only one accommodating cavity, several elastic strips need to be installed. The several elastic strips are closely arranged in the accommodating cavity to ensure that the elastic strips completely and tightly fill the entire accommodating cavity. When there are several accommodating cavities, the number and shape of the elastic strips are consistent with the accommodating cavities, and the elastic strips are paired and placed in the corresponding accommodating cavities to ensure that the corresponding elastic strips will completely fill the corresponding accommodating cavities.

[0026] The third step is pressing and forming. The carbon fiber panel is glued to the top surface of the honeycomb core material, and the carbon fiber bottom plate is glued to the bottom surface of the honeycomb core material. Then the carbon fiber binding is pasted and wrapped on the sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate. Finally, the honeycomb core material with the carbon fiber panel, the carbon fiber bottom plate and the carbon fiber binding is placed in a pressing mold, and the pressing mold is placed in a heating device for heating and curing. The heating process will make the carbon fiber panel, the carbon fiber bottom plate and the carbon fiber binding bonded and cured with the honeycomb core material. At the same time, the strip foaming rod is prompted to perform secondary foaming during the heating process, so that the elastic strip after secondary foaming will completely and tightly fill the entire accommodating cavity without leaving any gaps.

[0027] The fourth step is to assemble the finished product. Take out the pressed semi-finished product, wrap the edge strips along the sides of the honeycomb core material, carbon fiber panel and carbon fiber bottom plate, fix the edge strips with glue, and extend the edge strips to the handle. Finally, install the grip splint and end cover, and wrap the hand glue around the handle.

[0028] The beneficial effects produced by the present invention are as follows:

[0029] 1) Regarding the pickle ball racket, a accommodating cavity is cut in the middle of the racket portion of the honeycomb core material, and the accommodating cavity is tightly filled with elastic strips. The elastic strip is composed of a strip foam rod and a carbon fiber wrapped shell. The strip foam rod is wrapped by the carbon fiber wrapped shell to ensure that the entire elastic strip has good support and resilience. The side of the carbon fiber wrapped shell is perpendicular to the carbon fiber panel and the carbon fiber bottom plate, which is used to improve the support of the racket portion, and can prevent the racket portion from collapsing and deforming due to long-term hitting the ball, and has a longer service life. The strip foam rod is used to improve the resilience of the racket portion, and can produce better resilience during the hitting process. The strip foam rod is light as a whole and is a material with good elasticity. Combined with the carbon fiber panel and the carbon fiber bottom plate, the overall racket portion has good elasticity and moderate hardness, and the ball can be hit quickly without too much returning force during the hitting process.

[0030] 2) Regarding the manufacturing process of the pickle ball racket, the elastic strips are pre-made through a foaming mold, and the size of the elastic strips is pre-designed according to the shape of the accommodating cavity. When there is only one accommodating cavity, it is necessary to set up a plurality of elastic strips, and arrange the plurality of elastic strips closely in the accommodating cavity to ensure that the elastic strips completely and tightly fill the entire accommodating cavity; when there are several accommodating cavities, the number and shape of the elastic strips are consistent with the accommodating cavities, and the elastic strips are paired and placed in the corresponding accommodating cavities to ensure that the corresponding elastic strips will completely fill the corresponding accommodating cavities, and the side shape of the carbon fiber wrapped shell is controlled by a foaming mold. The side of the carbon fiber wrapped shell is perpendicular to the carbon fiber panel and the carbon fiber bottom plate, so as to improve the support of the racket face. The strip method can improve the overall production effect. Finally, after the elastic strip completely fills the corresponding accommodating cavity, the carbon fiber panel and carbon fiber bottom plate are laid, and the carbon fiber edging is wrapped. Finally, the honeycomb core material with the carbon fiber panel, carbon fiber bottom plate and carbon fiber edging is placed into a pressing mold. During the heating and curing process of the pressing mold, not only can the glue be cured and the stability of the paste be increased, but also the strip-shaped foaming rod can be foamed for the second time, so that the elastic strip after the second foaming will completely and tightly fill the entire accommodating cavity without leaving any gaps, thereby avoiding hollowness or abnormal noise caused by gaps in the accommodating cavity. The pasting, fixing and secondary foaming processes can be completed by one pressing of the pressing mold, which can not only improve the production efficiency but also ensure the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the structure decomposition of a pickleball racket according to the first embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the three-dimensional structure of the pickleball racket in the first embodiment of the present invention in the state where the grip is not wound;

[0033] Figure 3 It is a schematic diagram of the structure decomposition of the pickleball racket in the first embodiment of the present invention when the grip is not wound;

[0034] Figure 4 It is a front view of the honeycomb core material in the pickle ball racket according to the first embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of the three-dimensional structure of the honeycomb core material installed with elastic strips in the pickle ball racket according to the first embodiment of the present invention;

[0036] Figure 6 It is a schematic diagram of the structure of the honeycomb core material installed with elastic strips in the pickle ball racket according to the first embodiment of the present invention;

[0037] Figure 7 It is a front view of the honeycomb core material in the pickle ball racket according to the second embodiment of the present invention;

[0038] Figure 8It is a schematic diagram of the three-dimensional structure of the honeycomb core material installed with elastic strips in the pickle ball racket according to the second embodiment of the present invention;

[0039] Fig. 9 It is a schematic diagram of the structure of installing elastic strips on the honeycomb core material in the pickle ball racket according to the second embodiment of the present invention;

[0040] Fig.10 It is a front view of the honeycomb core material in the pickle ball racket according to the third embodiment of the present invention;

[0041] Fig.11 It is a schematic diagram of the three-dimensional structure of the honeycomb core material installed with elastic strips in the pickle ball racket according to the third embodiment of the present invention;

[0042] Fig.12 This is a schematic diagram of the structure of the honeycomb core material in the pickleball racket according to the third embodiment of the present invention, in which the elastic strip is installed;

[0043] In the figure, 1-honeycomb core material, 2-carbon fiber panel, 3-carbon fiber bottom plate, 4-first non-woven fabric layer, 5-second non-woven fabric layer, 6-accommodating cavity, 7-elastic strip, 8-carbon fiber edging, 9-edge protection strip, 10-plywood, 11-end cover, 12-hand glue. DETAILED DESCRIPTION

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] Embodiment 1

[0046] In this embodiment, refer to Figure 1-Figure 6 The specifically implemented pickle ball racket includes a honeycomb core material 1, a carbon fiber panel 2 and a carbon fiber bottom plate 3. The carbon fiber panel 2 and the carbon fiber bottom plate 3 are respectively fixedly attached to the top and bottom surfaces of the honeycomb core material 1. In order to increase the stability of the honeycomb core material 1, a first non-woven fabric layer 4 is bonded to the top surface of the honeycomb core material 1 by glue, and the first non-woven fabric layer 4 is bonded between the top surface of the honeycomb core material 1 and the carbon fiber panel 2. A second non-woven fabric layer 5 is bonded to the bottom surface of the honeycomb core material 1 by glue, and the second non-woven fabric layer 5 is bonded between the bottom surface of the honeycomb core material 1 and the carbon fiber bottom plate 3.

[0047] The honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 all include a racket portion and a handle portion. Figure 3 As shown, the honeycomb core material 1, the first non-woven fabric layer 4, the second non-woven fabric layer 5, the carbon fiber panel 2 and the carbon fiber bottom plate 3 are consistent in shape, and their shapes are the same as the shape of the preset pickleball racket, and the handle part extends outward along one end of the racket surface.

[0048] The middle part of the face portion of the honeycomb core material 1 is provided with a receiving cavity 6. Figure 4As shown, there are eleven accommodating cavities 6 in this embodiment, and the extension direction of the eleven accommodating cavities 6 is consistent with the extension direction of the handle portion. There is a spacing between two adjacent accommodating cavities 6 and the spacing is equal. A plurality of elastic strips 7 for increasing the elasticity of the racket surface are tightly filled in the accommodating cavities 6. The shape and number of the elastic strips 7 in this embodiment are the same as those of the accommodating cavities 6. There are eleven elastic strips 7 in total, and the elastic strips 7 will completely fill the entire accommodating cavities 6. The elastic strips 7 are composed of strip-shaped foam rods and a carbon fiber wrapping shell wrapped on the surface of the strip-shaped foam rods. The strip-shaped foam rod of the present embodiment is composed of ETPU foam. During production, the ETPU foam material is first wrapped with a carbon fiber wrapping shell, and the carbon fiber wrapping shell wrapped with the ETPU foam material is placed in a foaming mold for foaming. The elastic strip 7 after foaming has the same shape as the accommodating cavity 6, and the top surface of the elastic strip 7 is flush with the top surface of the honeycomb core material 1, and the bottom surface of the elastic strip 7 is flush with the bottom surface of the honeycomb core material 1, and the side surfaces of the carbon fiber wrapping shell are perpendicular to the carbon fiber panel 2 and the carbon fiber bottom plate 3, which are used to improve the support of the racket portion, avoid the racket portion from collapsing and deforming due to long-term hitting of the ball, and have a longer service life.

[0049] In addition, if Figure 1 , Figure 2 and Figure 3 As shown, the sides of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 are wrapped with carbon fiber edging 8. A reinforcing plate is provided on the side of the connection area between the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 and the handle part, and the carbon fiber edging 8 wraps the reinforcing plate. The addition of the reinforcing plate can increase the overall stability of the connection between the handle part and the racket part, ensuring that the handle part has a good supporting effect and can withstand greater force without breaking easily. Figure 2 As shown, after the carbon fiber edging 8 is pasted, the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 are pasted and pressed to form a whole, and then the side of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3 is wrapped with an edge strip 9, as shown in FIG. Figure 1 As shown, the edge strip 9 is glued to the outer surface of the carbon fiber edging 8 by glue, and a grip splint 10 and an end cover 11 are provided on the handle portion of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3, and a hand glue 12 for wrapping the grip splint 10 is provided.

[0050] Embodiment 2

[0051] In this embodiment, refer to Figure 7-Figure 9The difference between the specifically implemented pickle ball racket and the embodiment 1 is that: there are two groups of accommodating cavities 6 in this embodiment, the two groups of accommodating cavities 6 are symmetrically arranged, and a spacing is left between the two groups of accommodating cavities 6, each group of eleven accommodating cavities 6 is provided, the number of elastic strips 7 is consistent with the number of accommodating cavities 6, the two groups of symmetrically arranged elastic strips 7 total twenty-two, the extension direction of the accommodating cavities 6 is consistent with the extension direction of the handle part, and a spacing is left between two adjacent accommodating cavities 6.

[0052] Embodiment 3

[0053] In this embodiment, refer to Figure 10-12 The difference between the pickle ball racket implemented in the specific embodiment and the embodiment 1 is that: there is a total of one accommodating cavity 6 in this embodiment, and the accommodating cavity 6 is located in the middle of the honeycomb core material 1. The edge of the honeycomb core material 1 has a connecting edge surrounding the accommodating cavity 6. There are a total of twenty-one elastic strips 7, and the twenty-one elastic strips 7 are closely arranged with each other. The extension direction of the elastic strips 7 is consistent with the extension direction of the handle.

[0054] The manufacturing processes of the three embodiments of the present invention are the same. The manufacturing process of the pickle ball racket of the present invention includes the following steps: the first step is to prepare materials, the second step is to install the elastic strip 7, the third step is to press and form, and the fourth step is to assemble the finished product.

[0055] The following is a detailed description of each complete step:

[0056] The first step is to prepare materials, including a honeycomb core material 1, a carbon fiber panel 2 and a carbon fiber bottom plate 3. The entire plate-shaped honeycomb core material 1 is cut into a racket shape with a racket portion and a handle portion. The top and bottom surfaces of the honeycomb core material 1 are respectively pasted with a first non-woven fabric layer 4 and a second non-woven fabric layer 5. At the same time, a accommodating cavity 6 is cut on the racket portion of the honeycomb core material 1. The number and shape of the accommodating cavity 6 can correspond to the schemes of each embodiment, and the accommodating cavity 6 of the corresponding size requirement can be cut. The carbon fiber panel 2 and the carbon fiber bottom plate 3 are both formed by hot pressing of carbon fiber prepreg cloth to become thin sheet plates in the shape of a racket with a racket face and a handle. The elastic strip 7 is made by a foaming mold. The carbon fiber wrapped shell is wrapped with ETPU foaming material. The carbon fiber wrapped shell wrapped with ETPU foaming material is placed in a foaming mold for heating and foaming. The ETPU foaming material is foamed to form strip-shaped foaming rods, so that the ETPU foaming material will completely fill the entire carbon fiber wrapped shell after foaming. The foaming mold is used to accurately control the shape and size of the elastic strip 7, and the shape and size of the elastic strip 7 correspond to the accommodating cavity 6 of each embodiment.

[0057] The second step is to install the elastic strip 7. When there is only one accommodating cavity 6, several elastic strips 7 need to be set up, and the several elastic strips 7 are arranged closely in the accommodating cavity 6 to ensure that the elastic strip 7 completely and tightly fills the entire accommodating cavity 6; when there are several accommodating cavities 6, the number and shape of the elastic strips 7 are consistent with the accommodating cavities 6, and the elastic strips 7 are paired and placed in the corresponding accommodating cavities 6 to ensure that the corresponding elastic strips 7 will completely fill the corresponding accommodating cavities 6.

[0058] The third step is pressing and forming. The carbon fiber panel 2 is glued to the top surface of the honeycomb core material 1, and the carbon fiber bottom plate 3 is glued to the bottom surface of the honeycomb core material 1. Then the carbon fiber edging 8 is pasted and wrapped on the sides of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3. Finally, the honeycomb core material 1 with the carbon fiber panel 2, the carbon fiber bottom plate 3 and the carbon fiber edging 8 is placed in a pressing mold, and the pressing mold is placed in a heating device for heating and curing. The heating process will make the carbon fiber panel 2, the carbon fiber bottom plate 3 and the carbon fiber edging 8 bonded and cured with the honeycomb core material 1 as a whole. The pressing mold can well limit the shape of the solidification into one, such as Figure 2 As shown, deformation is avoided, and the strip foaming rod is prompted to undergo secondary foaming during the heating process, so that the elastic strip 7 after secondary foaming will completely and tightly fill the entire accommodating cavity 6 without leaving any gaps. During the heating and curing process, the pressing mold can not only promote the curing of the glue and increase the stability of the paste, but also make the strip foaming rod undergo secondary foaming, so that the elastic strip 7 after secondary foaming will completely and tightly fill the entire accommodating cavity 6 without leaving any gaps, thereby avoiding the hollowness or abnormal sound caused by the gaps in the accommodating cavity 6. The pasting and fixing and secondary foaming processes can be completed by pressing the pressing mold once, which can not only improve production efficiency but also ensure product quality.

[0059] The fourth step is to assemble the finished product. Take out the pressed semi-finished product, wrap the edge strip 9 along the side of the honeycomb core material 1, the carbon fiber panel 2 and the carbon fiber bottom plate 3. The edge strip 9 is fixed by gluing. After gluing, the edge strip 9 is pressed and fixed. The edge strip 9 extends to the handle. Finally, the grip splint 10 and the end cover 11 are installed. The splint 10 will clamp the handle along the front and back sides, and the hand glue 12 is wrapped around the handle.

[0060] The above contents are further detailed descriptions of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as the protection scope of the present invention.

Claims

1. A pickle ball racket, comprising a honeycomb core material, a carbon fiber panel and a carbon fiber bottom plate, wherein the carbon fiber panel and the carbon fiber bottom plate are respectively fixedly attached to the top surface and the bottom surface of the honeycomb core material, and the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate all comprise a racket portion and a handle portion, wherein the handle portion extends outwardly from one end of the racket portion, and wherein: A receiving cavity is provided in the middle of the racket face of the honeycomb core material, and a plurality of elastic strips for increasing the elasticity of the racket face are tightly filled in the receiving cavity. The elastic strips completely fill the entire receiving cavity. The elastic strips are composed of strip-shaped foam rods and a carbon fiber wrapped shell wrapped around the surface of the strip-shaped foam rods.

2. The pickleball racket according to claim 1, characterized in that: There are more than three accommodating cavities in total, the number of elastic strips is consistent with the number of accommodating cavities, the extension direction of the accommodating cavities is consistent with or perpendicular to the extension direction of the handle portion, and a spacing is left between two adjacent accommodating cavities.

3. The pickleball racket according to claim 1, characterized in that: There are two groups of accommodating cavities in total. The two groups of accommodating cavities are symmetrically arranged with a spacing between them. Each group of accommodating cavities is provided with more than three accommodating cavities. The number of elastic strips is consistent with the number of accommodating cavities. The extension direction of the accommodating cavities is consistent with or perpendicular to the extension direction of the handle portion, and a spacing is left between two adjacent accommodating cavities.

4. The pickleball racket according to claim 1, characterized in that: There is a total of one accommodating cavity, and there are a total of a plurality of elastic strips, which are closely arranged with each other, and the extending direction of the elastic strips is consistent with or perpendicular to the extending direction of the handle portion.

5. The pickleball racket according to any one of claims 1 to 4, characterized in that: A first non-woven fabric layer is bonded between the top surface of the honeycomb core material and the carbon fiber panel by glue, and a second non-woven fabric layer is bonded between the bottom surface of the honeycomb core material and the carbon fiber bottom plate by glue.

6. The pickleball racket according to any one of claims 1 to 4, characterized in that: The strip-shaped foamed rod is made of PU foam or ETPU foam.

7. The pickleball racket according to any one of claims 1 to 4, characterized in that: The sides of the honeycomb core material, carbon fiber panel and carbon fiber bottom plate are wrapped with carbon fiber edging, and the sides of the racket surface of the honeycomb core material, carbon fiber panel and carbon fiber bottom plate are wrapped with edge strips, which are glued to the outer surface of the carbon fiber edging by glue.

8. The pickleball racket according to claim 7, characterized in that: A reinforcing plate is provided on the side of the connection area between the racket face portion and the handle portion of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate, and the reinforcing plate is wrapped with the carbon fiber edging.

9. The pickleball racket according to claim 8, characterized in that: The handle portion of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate is provided with a grip splint and an end cover, and is provided with a hand glue for winding the grip splint.

10. A manufacturing process for a pickleball racket, characterized in that: The manufacturing process is used to manufacture the pickleball racket of any one of claims 1-9, and the manufacturing process comprises the following steps: The first step is to prepare materials, such as honeycomb core material, carbon fiber panel and carbon fiber bottom plate. The whole plate-shaped honeycomb core material is cut into the shape of a racket with a racket face and a handle. The top and bottom surfaces of the honeycomb core material are respectively pasted with a first non-woven fabric layer and a second non-woven fabric layer. At the same time, a receiving cavity is cut on the racket face of the honeycomb core material. The carbon fiber panel and the carbon fiber bottom plate are both hot-pressed by carbon fiber prepreg to become a thin sheet material in the shape of a racket with a racket face and a handle. The elastic strip is made by a foaming mold. The carbon fiber wrapped shell is wrapped with a foaming material. The carbon fiber wrapped shell wrapped with the foaming material is placed in a foaming mold for heating and foaming. The foaming material is foamed to form a strip-shaped foaming rod, so that the foaming material will completely fill the entire carbon fiber wrapped shell after foaming. The foaming mold is used to accurately control the shape and size of the elastic strip. The second step is to install the elastic strips. When there is only one accommodating cavity, several elastic strips need to be installed. The several elastic strips are closely arranged in the accommodating cavity to ensure that the elastic strips completely and tightly fill the entire accommodating cavity. When there are several accommodating cavities, the number and shape of the elastic strips are consistent with the accommodating cavities, and the elastic strips are paired and placed in the corresponding accommodating cavities to ensure that the corresponding elastic strips will completely fill the corresponding accommodating cavities. The third step is pressing and forming. The carbon fiber panel is glued to the top surface of the honeycomb core material, and the carbon fiber bottom plate is glued to the bottom surface of the honeycomb core material. Then the carbon fiber binding is pasted and wrapped on the sides of the honeycomb core material, the carbon fiber panel and the carbon fiber bottom plate. Finally, the honeycomb core material with the carbon fiber panel, the carbon fiber bottom plate and the carbon fiber binding is placed in a pressing mold, and the pressing mold is placed in a heating device for heating and curing. The heating process will make the carbon fiber panel, the carbon fiber bottom plate and the carbon fiber binding bonded and cured with the honeycomb core material. At the same time, the strip foaming rod is prompted to perform secondary foaming during the heating process, so that the elastic strip after secondary foaming will completely and tightly fill the entire accommodating cavity without leaving any gaps. The fourth step is to assemble the finished product. Take out the pressed semi-finished product, wrap the edge strips along the sides of the honeycomb core material, carbon fiber panel and carbon fiber bottom plate, fix the edge strips with glue, and extend the edge strips to the handle. Finally, install the grip splint and end cover, and wrap the hand glue around the handle.

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