Production process of a damping function ball bat with damping handle

Abstract

The present application relates to a kind of damping handle's shock-absorbing function bat production process, the bat includes hitting rod body and the handle fixed to the rear side of hitting rod body, the end of handle has the connecting head that can be inserted into hitting rod body, connecting head and handle between there is elastomer, elastomer has multiple carbon fiber rods in, carbon fiber rod both ends are connected to connecting head and handle, the outer surface of connecting head has outer thread, the rear side of hitting rod body has the inner thread matched with outer thread, the present application adopts carbon fiber rod structure and is wrapped in elastomer between, elastomer is formed by mould, it can utilize the material quality of elastomer to disperse the impact force in the process of ball hitting, in addition, it can greatly enhance the connection strength of handle and hitting rod body by using carbon fiber rod connection.

Description

Technical Field

[0001] This invention relates to a baseball bat with a damping grip for vibration reduction. Background Technology

[0002] During a hit, the bat impacts the grip area. Reducing the impact on the batter has always been a key focus in bat development. Current technologies typically use a separate structure for the bat's striking and grip parts, with a cushioning device or a cushioning component at the striking point. However, the connection between these parts is not reliable. Summary of the Invention

[0003] To address the issue that existing baseball bats require shock absorption at the grip area of ​​the bat to reduce vibration, the current structural design is not secure at the batting point and is prone to loosening and breakage.

[0004] The technical solution of the present invention is as follows: A manufacturing process for a baseball bat with a damping grip, the bat comprising a bat body and a grip fixed to the rear side of the bat body, the end of the grip having a connector that can be inserted into the bat body, an elastic body between the connector and the grip, the elastic body having multiple carbon fiber rods, the two ends of the carbon fiber rods being respectively connected to the connector and the grip, the outer surface of the connector having an external thread, and the rear side of the bat body having an internal thread that mates with the external thread, specifically including the following steps:

[0005] (1) The aluminum alloy striking rod body is rolled into a rod and heat-treated to produce the handle and carbon fiber rod from composite materials.

[0006] (2) Machining a threaded structure on the inner surface of the aluminum alloy ball bar;

[0007] (3) Injection-molded connector;

[0008] (4) Insert the carbon fiber rod into the connector and place it into the elastomer mold. Fill the bottom, top and gap of the carbon fiber rod with compound rubber and use the molding process to die-cast the elastomer on the outer surface of the carbon fiber rod between the batter and the handle.

[0009] (5) Polish and grind the surface of the elastomer.

[0010] Preferably, the elastomer mold in step (4) includes an upper mold and a lower mold, wherein the opposing surfaces of the lower mold and the upper mold have die-casting cavities for forming the connecting parts of the baseball bat, and positioning cavities for limiting the striking body and grip of the baseball bat respectively.

[0011] Preferably, the carbon fiber rod utilizes a carbon fiber rod production apparatus, characterized in that the carbon fiber rod production apparatus includes a roller platform, on which a movable roller is placed, one end of the carbon fiber composite prepreg is pre-wound around the outside of the movable roller, and a rubbing plate is fixedly connected to the roller platform via a lifting mechanism. The lifting mechanism is driven to move laterally by a transverse mechanism, and the rubbing plate is driven to press down by the lifting mechanism and rubs the movable roller under the drive of the transverse mechanism, so that the carbon fiber composite prepreg is continuously wound around the outside of the rubbing roller to form a cylindrical shape. The cylindrical carbon fiber composite prepreg is thermoset to form a carbon fiber rod.

[0012] Preferably, the carbon fiber rod includes a central carbon fiber rod and side rods surrounding the outer periphery of the central carbon fiber rod, wherein the diameter of the central carbon fiber rod is larger than that of the side rods.

[0013] Preferably, the elastomer is silicone or rubber.

[0014] Preferably, the carbon fiber rod is made of composite material or metal material, and the central carbon fiber rod coincides with the axis of the club.

[0015] Preferably, the outer edge of the striking rod has a recessed annular groove, and the upper edge of the elastic body wraps around the lower edge of the striking rod's annular groove.

[0016] Preferably, the upper end of the carbon fiber rod is inserted into the connector and bonded to the connector with adhesive.

[0017] Preferably, the thickness of the central carbon fiber rod is 1.5mm-3.5mm, and the wall thickness of the side rod is 0.5mm-1.5mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) The present invention uses a carbon fiber rod structure wrapped between elastic bodies. The elastic body is made of rubber material and is die-cast. The material of the elastic body can disperse the impact force during the ball hitting process. In addition, the connection between the handle and the batting rod can be greatly enhanced by using the carbon fiber rod connection.

[0020] (2) In this embodiment of the invention, the layout of the central carbon fiber rod and the side rods around the central carbon fiber rod can effectively and evenly withstand impacts from all directions.

[0021] (3) In the embodiments of the present invention, the central carbon fiber rod and the central carbon fiber rod are made of composite materials, which can reduce the weight of the overall bat.

[0022] (4) The carbon fiber composite prepreg winding mechanism is used in the embodiments of the present invention, which can facilitate the winding of the carbon fiber composite prepreg winding mechanism and is easy to use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the connection structure between the striking rod and the handle in an embodiment of the present invention;

[0024] Figure 2 This is a schematic cross-sectional view of a ball-and-stick with an annular through groove in an embodiment of the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of a ball-and-stick with an annular through groove in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of an elastomer processing mold according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the carbon fiber composite prepreg winding mechanism for carbon fiber rod forming according to an embodiment of the present invention.

[0028] In the diagram: 10-Strike bar body, 20-Handle, 210-Connector, 220-Elastomer, 30-Carbon fiber rod, 310-Center carbon fiber rod, 320-Side rod, 40-Elastomer mold, 410-Upper mold, 420-Lower mold, 440-Die casting mold cavity, 450-Positioning mold cavity, 50-Roller platform, 501-Moving roller, 510-Carbon fiber composite prepreg, 520-Washboard, 521-Lifting mechanism, 530-Transverse movement mechanism. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0030] See Figure 1-3 A damping-featured baseball bat with a damped grip includes a bat body 10 and a grip 20 fixed to the rear side of the bat body. The end of the grip 20 has a connector 210 that can be inserted into the bat body. An elastic body 220 is provided between the connector 210 and the grip 20. The elastic body 220 contains a plurality of carbon fiber rods 30. The two ends of the carbon fiber rods 30 are respectively connected to the connector 210 and the grip 20.

[0031] In this embodiment, the outer surface of the connector 210 has an external thread, and the rear side of the striking rod body has an internal thread that mates with the external thread. In this embodiment, the connector 210 and the rear side of the striking rod body 10 are connected by threads. To improve the connection strength, adhesive can be applied to the threaded surface before connecting the connector 210 and the striking rod body 10.

[0032] The carbon fiber rod 30 includes a central carbon fiber rod 310 and side rods 320 surrounding the central carbon fiber rod 310. The diameter of the central carbon fiber rod 310 is larger than that of the side rods 320. The side rods 320 are arranged in a circumferential direction. The arrangement of the central carbon fiber rod 310 and the side rods 320 around the central carbon fiber rod can effectively and evenly withstand impacts from all directions. The lower part of each side rod 320 is constricted at the upper end of the handle. The upper end of each carbon fiber rod is inserted into the connector and glued to the connector. The connector has pre-drilled holes for inserting each carbon fiber rod to ensure the positioning of each carbon fiber rod.

[0033] During fixing, each carbon fiber rod end is coated with glue and then inserted into the connector 210 for fixation. After that, the connector 210 is coated with glue and threaded into the striking rod body 10.

[0034] In this embodiment, the elastomer 220 is made of silicone or rubber, which helps to reduce vibration after the ball hits. The carbon fiber rod 30 is made of composite material or metal material, and the central carbon fiber rod 310 coincides with the axis of the club.

[0035] In an embodiment of the present invention, the thickness of the central carbon fiber rod 310 is 1.5mm-3.5mm, and the wall thickness of the side rod is 0.5mm-1.5mm.

[0036] In an embodiment of the present invention, the upper edge of the elastic body 220 wraps around the lower edge of the striking rod body, and the outer edge of the striking rod body 10 has a recessed annular groove 110.

[0037] The elastic body 220 is wrapped around the annular groove 110 on the lower outer periphery of each carbon fiber rod 30 and the bat body, thereby improving the connection strength between the bat body 10 and the grip 20, and making the outer surface of the bat smooth overall.

[0038] The production process specifically includes the following steps:

[0039] (1) The aluminum alloy striking rod body is rolled into a rod and heat-treated to produce the handle and carbon fiber rod from composite materials.

[0040] (2) Machining a threaded structure on the inner surface of the aluminum alloy ball bar;

[0041] (3) Injection-molded connector;

[0042] (4) Insert the carbon fiber rod into the connector and place it into the elastomer mold 40. Figure 2 The bottom, top and gaps of the carbon fiber rod are filled with compounded rubber, and an elastomer is die-cast on the outer surface of the carbon fiber rod between the batter and the handle using a molding process.

[0043] (5) Polish the surface of the elastomer to make the elastomer and the surrounding impact rod surface transition smoothly.

[0044] like Figure 4 As shown, the elastomer mold in step (4) of this embodiment includes an upper mold 410 and a lower mold 420. The lower mold 420 and the upper mold 410 have a die-casting cavity 440 for forming the connection part of the baseball bat, and a positioning cavity 450 for limiting the baseball bat's striking body and grip, respectively.

[0045] During operation, the part of the elastomer to be die-cast is placed into the die-casting cavity 440 of the lower mold 420 and the upper mold 430, and then the compound is added. After that, it is molded under the set high temperature and high pressure using a flat vulcanizing machine. When placing the compound, it is necessary to ensure that there is compound between each carbon fiber rod to avoid deformation and misalignment of the carbon fiber rod during the molding process. In addition, the heating part of the flat vulcanizing machine is only located inside the die-casting cavity 440, and the rest of the part is located outside the vulcanizing machine. The positioning cavity 450 is used to position the batting body and grip of the baseball bat.

[0046] like Figure 5 As shown, in one embodiment of the present invention, the carbon fiber rod utilizes a carbon fiber rod production device, which includes a roller platform 50, on which a movable roller 501 is placed. One end of the carbon fiber composite prepreg fabric 510 is pre-wound around the outside of the movable roller. The roller platform is fixedly connected to a rubbing board 520 via a lifting mechanism 521, which is driven to move laterally by a lateral movement mechanism 530.

[0047] During operation, one end of the carbon fiber composite prepreg is first pre-wound around the outside of the moving roller 501. The lifting mechanism (lifting cylinder) drives the rubbing plate 520 to move downwards. After the bottom surface of the rubbing plate 520 contacts the carbon fiber composite prepreg outside the moving roller 501, the rubbing plate 520 is driven laterally by the lateral movement mechanism (lateral cylinder), so that the carbon fiber composite prepreg continues to be tightly wrapped around the outside of the moving roller 501, forming a cylindrical shape. After the edge of the outermost carbon fiber composite prepreg is glued and the moving roller 50 is removed, a cylindrical carbon fiber composite prepreg with a certain thickness is formed. Finally, the carbon fiber rod 30 is formed by thermosetting using a mold. This method has a simple structure and is easy to operate, improving work efficiency. Multiple carbon fiber rods 30 can be manufactured simultaneously in the same row. The length of the carbon fiber rod 30 can be pre-strengthened to be longer, and after forming, it can be cut into multiple carbon fiber rods 30 that meet the length requirements.

[0048] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A manufacturing process for a baseball bat with a damping grip, characterized in that, The bat includes a bat body and a handle fixed to the rear of the bat body. The end of the handle has a connector that can be inserted into the bat body. An elastic body exists between the connector and the handle, and the elastic body contains multiple carbon fiber rods. The two ends of each carbon fiber rod are connected to the connector and the handle, respectively. The outer surface of the connector has external threads, and the rear of the bat body has internal threads that mate with the external threads. The specific steps include: (1) The striking bar is formed by rolling aluminum alloy bars and heat-treated. The grip and carbon fiber bar are produced by using composite materials. (2) Machining a threaded structure on the inner surface of the aluminum alloy ball bar; (3) Injection-molded connector; (4) Insert the carbon fiber rod into the connector and place it into the elastomer mold. Fill the bottom, top and gap of the carbon fiber rod with compound rubber and use the molding process to die-cast the elastomer on the outer surface of the carbon fiber rod between the batter and the handle. (5) Polish and grind the surface of the elastomer; The elastomer mold in step (4) includes an upper mold and a lower mold. The opposing surfaces of the lower mold and the upper mold have die-casting cavities for forming the connecting parts of the baseball bat, and positioning cavities for limiting the striking body and grip of the baseball bat, respectively. The carbon fiber rod includes a central carbon fiber rod and side rods surrounding the outer periphery of the central carbon fiber rod, wherein the diameter of the central carbon fiber rod is larger than that of the side rods; The carbon fiber rod utilizes a carbon fiber rod production device, which includes a roller platform with a movable roller placed on it. One end of the carbon fiber composite prepreg is pre-wound around the movable roller. The roller platform is fixedly connected to a rubbing board via a lifting mechanism. The lifting mechanism is driven to move laterally by a traversing mechanism. The rubbing board is driven to press down by the lifting mechanism and rubs the movable roller under the drive of the traversing mechanism, causing the carbon fiber composite prepreg to continuously wrap around the rubbing roller to form a cylindrical shape. The cylindrical carbon fiber composite prepreg is then thermoset to form a carbon fiber rod.

2. The manufacturing process of a baseball bat with a damping grip according to claim 1, characterized in that, The elastomer is silicone or rubber.

3. The manufacturing process of a baseball bat with a damping grip according to claim 1, characterized in that, The outer edge of the striking rod has a recessed annular groove, and the upper edge of the elastic body wraps around the lower edge annular groove of the striking rod.

4. The manufacturing process of a baseball bat with a damping grip according to claim 1, characterized in that, The upper end of the carbon fiber rod is inserted into the connector and glued to the connector.

5. The manufacturing process of a baseball bat with a damping grip according to claim 1, characterized in that, The thickness of the central carbon fiber rod is 1.5mm-3.5mm, and the wall thickness of the side rod is 0.5mm-1.5mm.

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