Cutting device for table tennis bat rubber

Abstract

The utility model discloses a cutting device for table tennis bat rubber, which comprises a workbench erected on the ground, and further comprises a limiting mechanism used for limiting rubber materials, a cutting mechanism used for accurately cutting the rubber materials and a positioning mechanism used for positioning the rubber materials, the limiting mechanism is arranged at the upper end of the workbench, the cutting mechanism is arranged at one end of the limiting mechanism, and the positioning mechanism is assembled on the side, away from the limiting mechanism, of the cutting mechanism. The rubber sheet cutting device is simple in structure, the rubber sheet material is prevented from displacement or edge warping in the cutting process to influence the product quality, the cutting mechanism is arranged to be matched with the positioning mechanism, the rubber sheet can be cut into the uniform width through one-time cutting, the cutting process is simple and effective, the requirement for the operation proficiency of operators is low, the machining efficiency is high, and application and popularization are convenient.

Description

Technical Field

[0001] This utility model relates to the field of table tennis racket rubber production technology, and in particular to a cutting device for table tennis racket rubber. Background Technology

[0002] In the current technology, table tennis is a popular sport with a high popularity. Table tennis rackets are essential equipment for playing table tennis, consisting of two parts: the blade and the rubber. The blade and rubber are glued together after being coated with glue. The higher the skill level of the player, the higher the requirements for this equipment. Table tennis enthusiasts usually apply new rubber to their rackets during maintenance. The production process of table tennis racket rubber involves refining raw rubber, heating and pressing it into a continuous strip. After continuous cooling and shrinkage, the strip is then cut. The cutting process first requires cutting the rubber to a uniform width. Existing rubber cutting devices use two cutters and rollers to cut the sides of the continuously transported rubber to the required width. The cutter is fixed on one side, and the fixed cutter cuts the moving rubber. However, the table tennis racket rubber processed by this type of cutting device is prone to having rough edges and uneven edges, affecting the appearance of the racket and resulting in poor product consistency.

[0003] Chinese utility model patent application number 201921366181.4 discloses a ping-pong paddle rubber cutter, including a base plate as a reference and a cutter for cutting rubber rotatably connected to the base plate. The movement path of the end of the cutter that abuts against the rubber is the cutting contour of the rubber. The base plate includes a first plate body connected to the cutter and a second plate body hinged to the first plate body for clamping the rubber in cooperation with the first plate body. The area of ​​the first plate body is smaller than the size of the second plate body. However, this ping-pong paddle rubber cutter requires multiple adjustments to the cutter according to the shape and specifications of the ping-pong paddle during the cutting process. The cutting process is cumbersome, requires a high level of operator skill, and has low processing efficiency, which cannot meet the needs of mass production and processing, hindering its widespread use. Furthermore, it lacks a positioning structure for positioning the ping-pong paddle rubber, which may cause displacement of the ping-pong paddle rubber during processing, reducing the processing accuracy and affecting product quality. Utility Model Content

[0004] The purpose of this invention is to provide a cutting device for table tennis racket rubber.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0006] A cutting device for table tennis racket rubber includes a workbench erected on the ground, a limiting mechanism for limiting the rubber material, a cutting mechanism for precisely cutting the rubber material, and a positioning mechanism for positioning the rubber material. The limiting mechanism is arranged at the upper end of the workbench, the cutting mechanism is configured at one end of the limiting mechanism, and the positioning mechanism is assembled on the side of the cutting mechanism away from the limiting mechanism.

[0007] The limiting mechanism includes a limiting rail, a limiting beam, and an anti-tilting component. There are two sets of limiting rails, each set consisting of two parallel rails spaced apart. The two sets of limiting rails are sequentially and spaced apart on the upper end of the worktable and are fixedly connected to the worktable. The limiting beam is located on the upper part of the end of the limiting rail near the cutting mechanism and is fixedly connected to the corresponding limiting rail by screws. The anti-tilting component is located on the lower part of the limiting beam and inside the limiting rail.

[0008] The anti-warping assembly includes an anti-warping spring and an anti-warping pressure plate. The anti-warping spring is located at the bottom of the limiting beam and one end of it is fixedly connected to the limiting beam. The anti-warping pressure plate is located at the end of the anti-warping spring away from the limiting beam and is fixedly connected to the anti-warping spring. The anti-warping pressure plate and the limiting beam are arranged parallel to each other.

[0009] The cutting mechanism includes a cutting bracket, guide columns, a blade holder assembly, and a material ejection assembly. The cutting bracket is located at the upper end of the worktable and is fixedly connected to the worktable. There are two sets of guide columns, which are arranged side by side at intervals on the inner side of the cutting bracket and are fixedly connected to the cutting bracket and the worktable. The blade holder assembly is assembled on the upper part of the cutting bracket, and the material ejection assembly is located on the lower part of the blade holder assembly.

[0010] The blade holder assembly includes a blade holder mounting plate, a mounting blade holder, and a cutting blade. The blade holder mounting plate is disposed on the upper part of the two sets of guide columns and its two ends are slidably connected to the two sets of guide columns through linear bearings. The mounting blade holder is disposed on the bottom of the blade holder mounting plate and is fixedly connected to the blade holder mounting plate. The cutting blade is disposed on the lower part of the mounting blade holder and is fixedly connected to the mounting blade holder.

[0011] It also includes a cutting pressure bar, a return spring, a pressure bar connecting frame, and a pressure bar handle. The cutting pressure bar is located at the upper end of the knife holder mounting plate and is fixedly connected to the knife holder mounting plate through a connector. The cutting pressure bar is vertically arranged and passes through the cutting bracket. The upper end of the cutting pressure bar protrudes from the upper end of the cutting bracket. The return spring is sleeved on the upper outer side of the cutting pressure bar, and its two ends abut against the cutting bracket and the cutting pressure bar, respectively. The pressure bar connecting frame is located at the upper end of the cutting bracket, and one end of it is rotatably connected to the cutting bracket through a connecting seat. The upper end of the cutting pressure bar is slidably connected to the pressure bar connecting frame through a pin and a sliding groove. The pressure bar handle is located at the end of the pressure bar connecting frame away from the cutting bracket and is fixedly connected to the pressure bar connecting frame.

[0012] The ejector assembly includes ejector screws and ejector plates. There are two sets of ejector screws, each set consisting of two screws arranged side by side at intervals. The two sets of ejector screws are symmetrically arranged at the lower part of the tool holder mounting plate and are fixedly connected to the tool holder mounting plate. The ejector plate is arranged at the lower part of the ejector screws and is slidably connected to the ejector screws. The middle part of the ejector plate has a clearance opening corresponding to the cutting blade. The cutting blade passes through the ejector plate through the clearance opening. The upper end of the worktable is equipped with a blade pad and a material drop opening corresponding to the cutting blade.

[0013] The positioning mechanism includes a positioning base, a positioning baffle, a positioning handle, and a positioning block. The positioning base is disposed on the upper end of the worktable and is fixedly connected to the worktable. The positioning baffle is disposed on one side of the positioning base and one end of it is rotatably connected to the positioning base via a rotating shaft. The positioning handle is disposed on one side of the positioning base and one end of it is fixedly connected to the positioning baffle via a rotating shaft. The positioning block is disposed on the end of the positioning baffle away from the positioning base and is fixedly connected to the worktable. The side of the positioning block near the cutting bracket is fitted against the end of the positioning baffle away from the positioning base.

[0014] It also includes a material feeding channel, which is located at the bottom of the workbench and fixedly connected to the workbench, and the material feeding channel is configured as a funnel-shaped channel structure with its upper end connected to the material feeding port.

[0015] It also includes mounting legs, which are provided in four sets. The four sets of mounting legs are respectively located at the four corners of the lower end of the workbench and are fixedly connected to the workbench. The workbench is supported on the ground by the mounting legs.

[0016] The beneficial effects of this utility model are:

[0017] With a simple structure and a limiting mechanism, the rubber material can be guided and elastically pressed to prevent displacement or warping during the cutting process, which would affect product quality. The cutting mechanism works in conjunction with the positioning mechanism to cut the rubber to a uniform width in one cut. The cutting process is simple and effective, requires low operator skill, and has high processing efficiency. It can meet the needs of mass production and is easy to promote and use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the cooperation between the limiting mechanism, the worktable, and the cutting mechanism of this utility model;

[0020] Figure 3 This is a schematic diagram of the anti-tilting component and the limiting beam of this utility model.

[0021] Figure 4 This is a schematic diagram of the cutting mechanism structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning mechanism of this utility model.

[0023] In the diagram: 1. Workbench; 2. Limiting rail; 3. Limiting beam; 4. Anti-warping spring; 5. Anti-warping pressure plate; 6. Cutting bracket; 7. Guide column; 8. Knife holder mounting plate; 9. Knife holder mounting plate; 10. Cutting knife; 11. Cutting pressure bar; 12. Return spring; 13. Pressure bar connecting bracket; 14. Pressure bar handle; 15. Unloading screw; 16. Unloading plate; 17. Positioning base; 18. Positioning baffle; 19. Positioning handle; 20. Positioning block; 21. Unloading channel; 22. Mounting support leg. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings.

[0025] A cutting device for table tennis racket rubber includes a workbench 1, which is mounted on the ground. It also includes a limiting mechanism for restricting the rubber material, a cutting mechanism for precisely cutting the rubber material, and a positioning mechanism for positioning the rubber material. The limiting mechanism is located at the upper end of the workbench 1, the cutting mechanism is positioned at one end of the limiting mechanism, and the positioning mechanism is mounted on the side of the cutting mechanism away from the limiting mechanism. A schematic diagram of the overall structure of this utility model is shown below. Figure 1 As shown.

[0026] The limiting mechanism includes limiting rails 2, limiting beams 3, and anti-tilting components. Two sets of limiting rails 2 are provided, each set consisting of two parallel, spaced-apart rails. The two sets of limiting rails 2 are sequentially and spaced apart on the upper end of the worktable 1 and fixedly connected to it. The limiting beams 3 are located on the upper part of the limiting rails 2 near the cutting mechanism and are fixedly connected to the corresponding limiting rails 2 by screws. The anti-tilting components are located on the lower part of the limiting beams 3 and inside the limiting rails 2. The limiting mechanism utilizes the limiting rails 2 and the limiting beams... Together with the anti-warping component, the 3 forms a limiting structure on the workbench 1 to limit the rubber material. Two sets of limiting rails 2 form limiting structures on both sides of the rubber material to guide and limit its movement. The limiting beam 3 provides mounting support for the anti-warping component, allowing it to be installed inside the limiting rails 2. The anti-warping component elastically presses the rubber material to prevent warping during cutting. A schematic diagram of the limiting mechanism, workbench 1, and cutting mechanism is shown below. Figure 2 As shown.

[0027] The anti-warping assembly includes an anti-warping spring 4 and an anti-warping pressure plate 5. The anti-warping spring 4 is located at the bottom of the limiting beam 3 and one end of it is fixedly connected to the limiting beam 3. The anti-warping pressure plate 5 is located at the end of the anti-warping spring 4 away from the limiting beam 3 and is fixedly connected to the anti-warping spring 4. The anti-warping pressure plate 5 and the limiting beam 3 are arranged parallel to each other. The anti-warping assembly, through the cooperation of the anti-warping spring 4 and the anti-warping pressure plate 5, elastically presses the rubber material. The anti-warping spring 4 provides elastic support for the anti-warping pressure plate 5 and assembles the anti-warping pressure plate 5 at the lower part of the limiting beam 3. The anti-warping pressure plate 5 elastically presses the rubber material under the action of the anti-warping spring 4. A schematic diagram of the cooperation between the anti-warping assembly and the limiting beam 3 of this utility model is shown below. Figure 3 As shown.

[0028] The cutting mechanism includes a cutting bracket 6, guide columns 7, a blade holder assembly, and a material ejection assembly. The cutting bracket 6 is located at the upper end of the workbench 1 and is fixedly connected to the workbench 1. Two sets of guide columns 7 are arranged side-by-side at intervals on the inner side of the cutting bracket 6 and are fixedly connected to the cutting bracket 6 and the workbench 1. The blade holder assembly is mounted on the upper part of the cutting bracket 6, and the material ejection assembly is located on the lower part of the blade holder assembly. The cutting mechanism, through the cooperation of the cutting bracket 6, guide columns 7, blade holder assembly, and material ejection assembly, performs cutting operations on rubber materials. The cutting bracket 6 provides installation support for the guide columns 7 and the blade holder assembly. The guide columns 7 provide installation guidance for the blade holder assembly. The blade holder assembly is used to vertically rise and fall under the action of the guide columns 7 to perform cutting operations on the rubber materials. The material ejection assembly is used to unload the rubber materials to prevent them from getting stuck on the blade holder assembly. A schematic diagram of the cutting mechanism structure of this utility model is shown below. Figure 4 As shown.

[0029] The blade holder assembly includes a blade holder mounting plate 8, a blade holder mounting plate 9, and a cutting blade 10. The blade holder mounting plate 8 is located on the upper part of two sets of guide columns 7, and its two ends are slidably connected to the two sets of guide columns 7 through linear bearings. The blade holder mounting plate 9 is located at the bottom of the blade holder mounting plate 8 and is fixedly connected to the blade holder mounting plate 8. The cutting blade 10 is located at the lower part of the blade holder mounting plate 9 and is fixedly connected to the blade holder mounting plate 9. The blade holder assembly, through the cooperation of the blade holder mounting plate 8, the blade holder mounting plate 9, and the cutting blade 10, moves vertically up and down under the action of the guide columns 7 to cut rubber materials. The blade holder mounting plate 8 provides mounting support for the blade holder mounting plate 9 and moves vertically up and down along the guide columns 7. The blade holder mounting plate 9 provides mounting support for the cutting blade 10 to mount the cutting blade 10 on the blade holder mounting plate 8. The cutting blade 10 moves vertically up and down along the guide columns 7 under the action of the blade holder mounting plate 8 and the blade holder mounting plate 9 to cut rubber materials.

[0030] It also includes a cutting pressure bar 11, a return spring 12, a pressure bar connecting bracket 13, and a pressure bar handle 14. The cutting pressure bar 11 is located on the upper end of the knife holder mounting plate 8 and is fixedly connected to the knife holder mounting plate 8 through a connector. The cutting pressure bar 11 is vertically arranged and passes through the cutting bracket 6. The upper end of the cutting pressure bar 11 protrudes from the upper end of the cutting bracket 6. The return spring 12 is sleeved on the upper outer side of the cutting pressure bar 11, and its two ends abut against the cutting bracket 6 and the cutting pressure bar 11, respectively. The pressure bar connecting bracket 13 is located on the upper end of the cutting bracket 6, and one end of it is rotatably connected to the cutting bracket 6 through a connecting seat. The upper end of the cutting pressure bar 11 is slidably connected to the pressure bar connecting bracket 13 through a pin and a sliding groove. The pressure bar handle 14 is located at the end of the pressure bar connecting frame 13 away from the cutting bracket 6 and is fixedly connected to the pressure bar connecting frame 13. The cutting pressure bar 11 is used to connect to the knife holder mounting plate 8 to perform a lifting and lowering action under the action of the pressure bar connector, thereby driving the knife holder mounting plate 8 to perform a lifting and lowering action. The return spring 12 is used to provide elastic support for the cutting pressure bar 11 so that the cutting pressure bar 11 can be driven to return to its original position after cutting. The pressure bar connecting frame 13 is used to provide mounting support for the upper end of the cutting pressure bar 11 and drives the cutting pressure bar 11 to perform a lifting and lowering action through the slide groove and the pin. The pressure bar handle 14 is used as a handle structure on the pressure bar connecting frame 13, thereby driving the pressure bar connecting frame 13 to move.

[0031] The ejection assembly includes ejection screws 15 and ejection plates 16. Two sets of ejection screws 15 are provided, each set consisting of two screws arranged side-by-side with spacing. The two sets of ejection screws 15 are symmetrically arranged at the lower part of the tool holder mounting plate 8 and fixedly connected to it. The ejection plate 16 is located at the lower part of the ejection screws 15 and slidably connected to them. A clearance opening is provided in the middle of the ejection plate 16 corresponding to the cutting blade 10. The cutting blade 10 passes through the clearance opening into the ejection plate 16. The upper end of the cutting blade 10 is equipped with a blade pad and a material discharge port. The material discharge assembly, through the cooperation of the material discharge screw 15 and the material discharge plate 16, discharges the rubber material to prevent it from getting stuck on the blade holder assembly. The material discharge screw 15 provides mounting support for the material discharge plate 16, which discharges the rubber material to prevent it from getting stuck on the blade holder assembly. The blade pad meets the cutting requirements of the cutting blade 10, and the material discharge port meets the material discharge requirements after cutting.

[0032] The positioning mechanism includes a positioning base 17, a positioning baffle 18, a positioning handle 19, and a positioning block 20. The positioning base 17 is mounted on the upper end of the worktable 1 and is fixedly connected to the worktable 1. The positioning baffle 18 is located on one side of the positioning base 17, and one end of it is rotatably connected to the positioning base 17 via a pivot. The positioning handle 19 is located on one side of the positioning base 17, and one end of it is fixedly connected to the positioning baffle 18 via a pivot. The positioning block 20 is located on the end of the positioning baffle 18 away from the positioning base 17 and is fixedly connected to the worktable 1. The side of the positioning block 20 closest to the cutting bracket 6 is connected to the positioning baffle 18. The end of the positioning baffle 18 furthest from the positioning base 17 is fitted into the positioning mechanism, which, through the cooperation of the positioning base 17, positioning baffle 18, positioning handle 19, and positioning block 20, positions the end of the rubber material during the cutting process. The positioning base 17 provides rotational support for the positioning baffle 18, which rotates under the drive of the positioning handle 19 to position the end of the rubber material. The positioning handle 19 drives the positioning baffle 18 to rotate, and the positioning block 20 positions the end of the positioning baffle 18 furthest from the positioning base 17. A schematic diagram of the positioning mechanism of this utility model is shown below. Figure 5 As shown.

[0033] It also includes a feeding channel 21, which is located at the bottom of the workbench 1 and is fixedly connected to the workbench 1. The feeding channel 21 is a funnel-shaped channel structure and its upper end is connected to the feeding port. The feeding channel 21 is used to feed the cut rubber material.

[0034] It also includes mounting legs 22, which are provided in four sets. The four sets of mounting legs 22 are respectively set at the four corners of the lower end of the workbench 1 and are fixedly connected to the workbench 1. The workbench 1 is supported on the ground by the mounting legs 22. The mounting legs 22 are used to provide mounting support for the workbench 1.

[0035] Working principle:

[0036] When cutting rubber materials, place the storage box below the feeding channel 21, place the rubber materials between the two sets of limit rails 2, and under the action of the anti-warping spring 4, the anti-warping pressure plate 5 elastically presses the upper surface of the rubber materials. The positioning handle 19 drives the positioning baffle 18 to rotate to cooperate with the positioning block 20 to position the end of the rubber materials. Then, press the pressure bar handle 14, and the cutting pressure bar 11 is driven down through the pressure bar connecting frame 13. The cutting pressure bar 11 is lowered through the knife holder mounting plate 8 and the mounting knife holder 9. The cutting blade 10 is lowered to cut the rubber material. The cut rubber material falls into the storage box through the feeding channel 21, thus completing the cutting operation of the ping-pong paddle rubber. After the cutting is completed, the return spring 12 drives the cutting pressure rod 11 to rise, resetting the cutting mechanism for the next cutting operation. After one cutting operation is completed, the rubber material can be pushed along the limit rail 2 towards the positioning mechanism until its end abuts against the positioning mechanism, and then the cutting mechanism can cut it.

[0037] The advantages of this utility model are its simple structure, the presence of a limiting mechanism that can limit and guide the rubber material while elastically pressing it, preventing displacement or warping of the rubber material during the cutting process and thus affecting product quality. The addition of a cutting mechanism in conjunction with a positioning mechanism allows for the cutting of the rubber material to a uniform width in a single operation. The cutting process is simple and effective, requires low operator skill, and has high processing efficiency, meeting the needs of mass production and facilitating widespread use.

[0038] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A cutting device for table tennis bat rubber, comprising a workbench (1), the workbench (1) is erected on the ground, characterized in that, The limiting mechanism is arranged at the upper end of the workbench (1), the cutting mechanism is arranged at one end of the limiting mechanism, and the positioning mechanism is assembled at the side of the cutting mechanism away from the limiting mechanism; The limiting mechanism includes limiting rails (2), a limiting cross beam (3), and an anti-warping assembly. Each of the two limiting rails (2) is composed of two parallel and spaced strip rails. The two limiting rails (2) are sequentially and spacedly arranged at the upper end of the workbench (1) and fixedly connected with the workbench (1). The limiting cross beam (3) is arranged at the upper part of one end of the limiting rail (2) close to the cutting mechanism and fixedly connected with the corresponding limiting rail (2) through screws. The anti-warping assembly is arranged at the lower part of the limiting cross beam (3) and located at the inner side of the limiting rail (2). The cutting mechanism includes a cutting support (6), guide columns (7), a knife holder assembly, and a material returning assembly. The cutting support (6) is arranged at the upper end of the workbench (1) and fixedly connected with the workbench (1). The two guide columns (7) are arranged in parallel and spaced at the inner side of the cutting support (6) and fixedly connected with the cutting support (6) and the workbench (1). The knife holder assembly is assembled at the upper part of the cutting support (6). The material returning assembly is arranged at the lower part of the knife holder assembly. The positioning mechanism includes a positioning base (17), a positioning baffle (18), a positioning handle (19), and a positioning block (20). The positioning base (17) is arranged at the upper end of the workbench (1) and fixedly connected with the workbench (1). The positioning baffle (18) is arranged at one side of the positioning base (17) and rotatably connected with the positioning base (17) at one end through a pivot. The positioning handle (19) is arranged at one side of the positioning base (17) and fixedly connected with the positioning baffle (18) at one end through a pivot. The positioning block (20) is arranged at one end of the positioning baffle (18) away from the positioning base (17) and fixedly connected with the workbench (1). The side of the positioning block (20) close to the cutting support (6) is arranged in close contact with the end of the positioning baffle (18) away from the positioning base (17).

2. A cutting device for table tennis bat rubber as claimed in claim 1, wherein, The anti-warping assembly includes an anti-warping spring (4) and an anti-warping pressing plate (5). The anti-warping spring (4) is arranged at the bottom of the limiting cross beam (3) and fixedly connected with the limiting cross beam (3) at one end. The anti-warping pressing plate (5) is arranged at one end of the anti-warping spring (4) away from the limiting cross beam (3) and fixedly connected with the anti-warping spring (4). The anti-warping pressing plate (5) and the limiting cross beam (3) are arranged in parallel with each other.

3. The cutting device for table tennis bat rubber of claim 2, wherein, The knife rest assembly comprises a knife rest mounting plate (8), a mounting knife rest (9) and a cutting knife (10), the knife rest mounting plate (8) is arranged at the upper part of the two groups of guide columns (7) and is slidably connected with the two groups of guide columns (7) through linear bearings at both ends, the mounting knife rest (9) is arranged at the bottom of the knife rest mounting plate (8) and is fixedly connected with the knife rest mounting plate (8), and the cutting knife (10) is arranged at the lower part of the mounting knife rest (9) and is fixedly connected with the mounting knife rest (9).

4. The cutting device for table tennis bat rubber of claim 3, wherein, Further comprising a cutting pressure rod (11), a reset spring (12), a pressure rod connecting frame (13) and a pressure rod handle (14), the cutting pressure rod (11) is arranged at the upper end of the knife rest mounting plate (8) and is fixedly connected with the knife rest mounting plate (8) through a connecting head, the cutting pressure rod (11) is vertically arranged and penetrates through the cutting support (6), the upper end of the cutting pressure rod (11) protrudes from the upper end of the cutting support (6), the reset spring (12) is sleeved outside the upper part of the cutting pressure rod (11) and abuts against the cutting support (6) and the cutting pressure rod (11) at both ends respectively, the pressure rod connecting frame (13) is arranged at the upper end of the cutting support (6) and is rotatably connected with the cutting support (6) at one end through a connecting seat, the upper end of the cutting pressure rod (11) is slidably connected with the pressure rod connecting frame (13) through a pin and a sliding groove, and the pressure rod handle (14) is arranged at the end of the pressure rod connecting frame (13) away from the cutting support (6) and is fixedly connected with the pressure rod connecting frame (13).

5. The cutting device for table tennis bat rubber of claim 4, wherein, The material returning assembly comprises a material returning screw (15) and a material returning plate (16), the material returning screw (15) is provided in two groups, each group of the material returning screw (15) is composed of two side-by-side spaced-apart screws, and the two groups of the material returning screw (15) are symmetrically arranged at the lower part of the knife rest mounting plate (8) and are fixedly connected with the knife rest mounting plate (8), the material returning plate (16) is arranged at the lower part of the material returning screw (15) and is slidably connected with the material returning screw (15), the middle part of the material returning plate (16) is provided with a avoiding opening corresponding to the cutting knife (10), the cutting knife (10) penetrates through the material returning plate (16) through the avoiding opening, and the upper end of the workbench (1) is provided with a knife pad and a material falling opening corresponding to the cutting knife (10).

6. A cutting device for table tennis bat rubber as claimed in claim 5, wherein, Further comprising a material discharging channel (21), the material discharging channel (21) is arranged at the bottom of the workbench (1) corresponding to the material falling opening and is fixedly connected with the workbench (1), the material discharging channel (21) is arranged in a funnel-shaped channel structure and its upper end is in communication with the material falling opening.

7. The cutting device for table tennis bat rubber of claim 6, wherein, Further comprising four mounting legs (22), the four mounting legs (22) are arranged at the four corners of the lower end of the workbench (1) and are fixedly connected with the workbench (1), and the workbench (1) is erected on the ground through the mounting legs (22).

Images