Leather cutting device for basketball production

By setting up positioning and cutting mechanisms in basketball production equipment, and utilizing components such as X-shaped outer boxes, U-shaped liners, and electric push rods, the displacement problem of leather during cutting was solved, achieving high-precision and efficient leather cutting.

CN224494228UActive Publication Date: 2026-07-14HUAIAN BAILU SPORTS EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAIAN BAILU SPORTS EQUIPMENT CO LTD
Filing Date
2025-07-09
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing basketball production equipment is prone to leather displacement when cutting shorter pieces of leather due to the small contact area with the conveyor belt, which affects the cutting accuracy.

Method used

By setting up a positioning mechanism, using a combination of an X-shaped outer box and a U-shaped liner, along with an electric push rod and a ladder-shaped pressure block, the four corners of the leather are positioned to prevent displacement; at the same time, the stamping plate and guide components in the cutting mechanism ensure precise cutting of the leather.

Benefits of technology

It improves the precision and efficiency of leather cutting in basketball production, prevents displacement of shorter leather during processing, and ensures the precision and continuous cutting of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a leather cutting device for basketball production relates to basketball production technical field. The utility model discloses a positioning mechanism, and the positioning mechanism is used for the skin of positioning equipment processing needs, and the positioning mechanism includes conveyer belt, and the front and back of conveyer belt all is provided with a plurality of U shaped lining board, the front of U shaped lining board top outer wall is provided with square round protruding piece, and the top of U shaped lining board top outer wall is provided with ladder platform pressure piece. The utility model discloses a positioning mechanism, specifically is to pull the pull rod and makes X shape outer box unlock, then inserts U shaped lining board into X shape outer box and locks, then starts electric push rod, makes electric push rod with ladder platform pressure piece overturn one side of conveyer belt top, and this can position four corners of those size shorter cloth through four ladder platform pressure pieces, prevent cloth from shifting when processing, and then guarantee the precision of equipment to the skin cutting.
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Description

Technical Field

[0001] This utility model belongs to the field of basketball production technology, and in particular relates to a leather cutting device for basketball production. Background Technology

[0002] A basketball is a spherical ball designed specifically for the sport of basketball. It is usually made of rubber or synthetic materials and has a textured surface to enhance grip. The standard circumference of a basketball is about 75 centimeters in men's games and slightly smaller at about 72 centimeters in women's games. It weighs about 624 grams and is inflated to about 8 pounds per square inch. This design ensures the ball's elasticity and durability while optimizing the player's control when dribbling, passing, and shooting.

[0003] Basketballs are made of several pieces of specially shaped leather. The leather is processed into a specified shape by a cutting device. However, when the cutting device processes shorter pieces of leather, the leather is prone to displacement during processing because the contact area with the conveyor belt is small, which affects the accuracy of the cutting device. Therefore, we have proposed a leather cutting device for basketball production. Utility Model Content

[0004] The purpose of this invention is to provide a leather cutting device for basketball production. By setting a positioning mechanism, specifically pulling outwards on a lever to unlock the X-shaped outer box, inserting a U-shaped liner into the X-shaped outer box and locking it, and then activating an electric push rod, the electric push rod carrying the ladder-shaped pressure blocks flips towards the top of the conveyor belt. This allows the four ladder-shaped pressure blocks to position the four corners of shorter pieces of fabric, preventing displacement during processing and ensuring the accuracy of the leather cutting. This solves the problem that existing basketballs are made of several specially shaped pieces of leather pieced together, and the cutting device processes the leather into a specified shape. However, when processing shorter pieces of leather, the small contact area with the conveyor belt makes displacement easy, affecting the cutting accuracy of the equipment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a leather cutting device for basketball production, including a positioning mechanism. The positioning mechanism is used to position the leather material required for processing by the equipment. The positioning mechanism includes a conveyor belt. Several U-shaped backing plates are provided on both the front and back of the conveyor belt. Square and round protrusions are provided on the front of the top outer wall of the U-shaped backing plate. A ladder pressing block is provided above the top outer wall of the U-shaped backing plate.

[0007] A cutting mechanism is used to process leather into a specified pattern. The cutting mechanism is located at the top center of the positioning mechanism. The cutting mechanism includes a rectangular outer box, a frame is installed at the bottom of the rectangular outer box, and a stamping plate is slidably connected inside the frame.

[0008] The bottom of the stamping plate is equipped with a blade, which is elliptical in shape.

[0009] Furthermore, the positioning mechanism includes a positioning component mounted on the outside of the conveyor belt, the positioning component being used to press the leather material to be cut;

[0010] The outer wall of the positioning component abuts against the outer wall of the conveyor belt.

[0011] Furthermore, the cutting mechanism includes a cutting component disposed at the top center of the conveyor belt, the cutting component being used to cut the fabric required for processing;

[0012] A guide component, disposed inside the cut-off component, is used to guide the displacement of the cut-off component;

[0013] The bottom inner wall of the cutting component contacts the outer wall of the conveyor belt, and the cutting component is C-shaped in general.

[0014] Furthermore, the positioning component includes several X-shaped outer boxes, which are arranged in two groups, left and right. Each group of outer box components includes two X-shaped outer boxes, which are arranged one in front of the other and one behind. The two X-shaped outer boxes are mirror images of each other with the conveyor belt as the center. The two X-shaped outer boxes are installed on the outer wall of the conveyor belt on the side closest to each other. The U-shaped liner is inserted into the center of the top of the X-shaped outer box. A round tube is installed at the center of the bottom of the U-shaped liner. Rectangular slots are opened on the left and right sides inside the X-shaped outer box. By setting the round tube installed at the bottom of the U-shaped liner, the U-shaped liner can be removed by pushing the round tube upward when the X-shaped outer box and the U-shaped liner are in contact and locked.

[0015] In this configuration, rectangular slide plates are slidably connected inside both rectangular slots, and two pull rods are installed on the opposite sides of the two rectangular slide plates. The pull rods extend outward through the X-shaped outer box and are slidably connected. A tension spring is sleeved on the outer wall of the pull rod, and the inner wall of the rectangular slot is flexibly connected to the rectangular slide plate through the tension spring.

[0016] Furthermore, limiting protrusions are installed at the top and bottom of the rectangular slide plate, and the two limiting protrusions are mirrored with respect to the rectangular slide plate as the center. Both rectangular slide plates are slidably connected to the inner wall of the X-shaped outer box. By setting the limiting protrusions to slide with the inner wall of the X-shaped outer box, the movement of the rectangular slide plate can be limited, so that the rectangular slide plate can make horizontal displacement smoothly.

[0017] The bottom of the round tube extends downward through the X-shaped outer box and is slidably connected thereto. The outer diameter of the round tube is adapted to the inner diameter of the part through which the bottom of the X-shaped outer box is penetrated.

[0018] Furthermore, an electric push rod is installed at the top center of the U-shaped liner. The coupling at the top output end of the electric push rod is installed on the bottom outer wall of the square-round protrusion. Connecting rod one is rotatably connected to the left and right sides of the front of the square-round protrusion. The top rear side of connecting rod one is rotatably connected to the bottom front of the platform pressure block. Connecting rod two is rotatably connected to the left and right sides of the top of the U-shaped liner. The tops of the two connecting rod two are rotatably connected to the bottom center of the platform pressure block. Connecting rod three is provided on the left and right sides of connecting rod two. The bottom front of connecting rod three is rotatably connected to the back side wall of the square-round protrusion. The top rear side of connecting rod three is rotatably connected to the center of the side wall of connecting rod two. By setting the connection relationship between the bottom of the square-round protrusion and the output end of the electric push rod, the electric push rod can control the rotation of connecting rod one by controlling the displacement of the output end of the electric push rod in the vertical reverse direction.

[0019] Among them, the two connecting rods are arranged horizontally mirrored to the left and right with the electric push rod as the center.

[0020] Furthermore, the cutting assembly includes a C-shaped gantry frame, which is located at the top center of the conveyor belt. The bottom outer wall of the C-shaped gantry frame is installed on the outer wall of the conveyor belt. A rectangular outer box is located at the top center of the C-shaped gantry frame. A stamping device is installed inside the rectangular outer box. The bottom output end of the stamping device passes through the rectangular outer box and the frame and extends downward. The coupling at the bottom output end of the stamping device is installed on the outer wall at the top center of the stamping plate. A semi-circular protrusion is installed at the top center of the rectangular outer box. A reciprocating screw is slidably connected at the center inside the semi-circular protrusion. The front and back of the reciprocating screw both extend outward through the C-shaped gantry frame and are rotatably connected. A motor is located on the front of the reciprocating screw. The motor is installed on the front outer wall of the C-shaped gantry frame. The coupling at the back output end of the motor is installed on the front outer wall of the reciprocating screw.

[0021] The guiding assembly includes several cylindrical guide rods, which are respectively disposed on the left and right sides of the rectangular outer box. The cylindrical guide rods are arranged in a circular array around the rectangular outer box. The front and back outer walls of the cylindrical guide rods are mounted on the inner wall of the conveyor belt. V-shaped sliding plates are installed on the left and right sides of the rectangular outer box, and the top and bottom of the V-shaped sliding plates are slidably connected to the outer walls of the cylindrical guide rods. By setting an elliptical cutter at the bottom of the stamping plate, the stamping plate can cut special-shaped leather pieces that meet the specifications on the leather when it moves downward.

[0022] The V-shaped skateboard is designed in a V shape, and the end of the V-shaped skateboard forms an angle with the side of the rectangular outer box.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model uses a positioning mechanism, specifically, pulling the pull rod outward to unlock the X-shaped outer box, then inserting the U-shaped liner into the X-shaped outer box and locking it, and then activating the electric push rod to flip the electric push rod with the ladder pressure block to the top side of the conveyor belt. In this way, the four ladder pressure blocks can position the four corners of the shorter fabrics, preventing the fabric from shifting during processing, thereby ensuring the accuracy of the equipment in cutting the leather.

[0025] 2. This utility model sets up a cutting mechanism, specifically by using a motor to drive a reciprocating screw to rotate, causing a semi-circular protrusion to follow its rotation and move back and forth. This causes the semi-circular protrusion to move the rectangular outer box and frame at the bottom, and the downward movement of the stamping plate cuts the leather on the conveyor belt. In this way, several leather pieces of the same size can be cut continuously from the leather material, ensuring the cutting efficiency of the equipment.

[0026] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0029] Figure 2 This is a schematic diagram of the rectangular outer box structure of this utility model;

[0030] Figure 3This is a schematic cross-sectional view of the X-shaped outer box of this utility model;

[0031] Figure 4 This is a schematic diagram of the ladder platform pressing block structure of this utility model;

[0032] Figure 5 This is a schematic diagram of the V-shaped sliding plate structure of this utility model.

[0033] The attached diagram lists the components represented by each number as follows:

[0034] 1. Positioning mechanism; 11. Conveyor belt; 12. Positioning component; 1211. X-shaped outer box; 1212. U-shaped liner; 1213. Round tube; 122. Tension spring; 123. Rectangular slot; 124. Rectangular slide plate; 125. Pull rod; 126. Limiting protrusion; 127. Electric push rod; 1281. Square and round protrusion; 1282. Ladder platform pressure block; 1291. Link 1; 1292. Link 2; 1293. Link 3; 2. Cutting mechanism; 21. Cutting component; 211. C-shaped gantry frame; 212. Rectangular outer box; 213. Frame; 214. Stamping plate; 215. Semi-circular protrusion; 216. Reciprocating lead screw; 217. Motor; 22. Guide component; 221. Cylindrical guide rod; 222. V-shaped slide plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] Please see Figures 1-5As shown, this utility model is a leather cutting device for basketball production, including a positioning mechanism 1. The positioning mechanism 1 is used to position the leather material required for processing by the equipment. The positioning mechanism 1 includes a conveyor belt 11. Several U-shaped backing plates 1212 are provided on both the front and back of the conveyor belt 11. Square and round protrusions 1281 are provided on the front of the top outer wall of the U-shaped backing plate 1212. A ladder pressing block 1282 is provided above the top outer wall of the U-shaped backing plate 1212. The cutting mechanism 2 is used to process the leather material into a specified pattern. The cutting mechanism 2 is located at the top center of the positioning mechanism 1. The cutting mechanism 2 includes a rectangular outer box 212. A frame 213 is installed at the bottom of the rectangular outer box 212. A stamping plate 214 is slidably connected inside the frame 213. A blade is installed at the bottom of the stamping plate 214. The blade of the stamping plate 214 is elliptical. The positioning mechanism 1 includes a positioning component 12, which is installed on the outside of the conveyor belt 11 and is used to press the leather to be cut; the outer wall of the positioning component 12 abuts against the outer wall of the conveyor belt 11. The cutting mechanism 2 includes a cutting component 21, which is located at the top center of the conveyor belt 11 and is used to cut the fabric required for processing; a guide component 22, which is located inside the cutting component 21 and is used to guide the displacement of the cutting component 21; the bottom inner wall of the cutting component 21 contacts the outer wall of the conveyor belt 11, and the cutting component 21 is C-shaped in shape. Positioning component 12 includes several X-shaped outer boxes 1211, which are arranged in two groups, left and right. Each group of outer boxes includes two X-shaped outer boxes 1211, which are arranged one in front of the other. The two X-shaped outer boxes 1211 are mirror images of each other with the conveyor belt 11 as the center. The two X-shaped outer boxes 1211 are installed on the outer wall of the conveyor belt 11 with their sides close to each other. A U-shaped liner 1212 is inserted into the center of the top of the X-shaped outer boxes 1211. A round tube 1213 is installed at the center of the bottom of the X-shaped outer box 1211. Rectangular slots 123 are provided on the left and right sides inside the X-shaped outer box 1211. Rectangular slide plates 124 are slidably connected inside each of the two rectangular slots 123. Two pull rods 125 are installed on the opposite sides of each rectangular slide plate 124. The pull rods 125 extend outward through the X-shaped outer box 1211 and are slidably connected. A tension spring 122 is fitted on the outer wall of the pull rod 125. The inner wall of the rectangular slot 123 is flexibly connected to the rectangular slide plate 124 via the tension spring 122. Limiting protrusions 126 are installed at the top and bottom of the rectangular slide plate 124. The two limiting protrusions 126 are mirror images of the rectangular slide plate 124, and both rectangular slide plates 124 are slidably connected to the inner wall of the X-shaped outer box 1211. The bottom of the round tube 1213 extends downward through the X-shaped outer box 1211 and is slidably connected. The outer diameter of the round tube 1213 matches the inner diameter of the part of the X-shaped outer box 1211 through which it is passed.An electric push rod 127 is installed at the center of the top of the U-shaped liner 1212. The coupling at the top output end of the electric push rod 127 is installed on the bottom outer wall of the square-round protrusion 1281. Connecting rod 1291 is rotatably connected to the left and right sides of the front of the square-round protrusion 1281. The top rear side of connecting rod 1291 is rotatably connected to the bottom front of the ladder pressure block 1282. Connecting rod 2292 is rotatably connected to the left and right sides of the top of the U-shaped liner 1212. The top of both connecting rod 2292 is rotatably connected to the center bottom of the ladder pressure block 1282. Connecting rod 3293 is provided on the left and right sides of connecting rod 2292. The bottom front of connecting rod 3193 is connected to the square-round protrusion 1281. The rear side wall of 81 is rotatably connected, and the top rear side of the connecting rod 3 1293 is rotatably connected to the center of the side wall of the connecting rod 2 1292; pull the pull rod 125 outward to unlock the X-shaped outer box 1211, then insert the U-shaped liner 1212 into the X-shaped outer box 1211 and lock it, then start the electric push rod 127, so that the electric push rod 127 carries the ladder pressure block 1282 to flip to the top side of the conveyor belt 11. In this way, the four ladder pressure blocks 1282 can position the four corners of the shorter fabrics to prevent the fabric from shifting during processing, thereby ensuring the accuracy of the equipment in cutting the leather; the two connecting rods 1291 are set horizontally mirrored to the left and right with the electric push rod 127 as the center.The cutting assembly 21 includes a C-shaped gantry 211, which is located at the top center of the conveyor belt 11. The bottom outer wall of the C-shaped gantry 211 is mounted on the outer wall of the conveyor belt 11. A rectangular outer box 212 is located at the top center of the C-shaped gantry 211. A stamping device is installed inside the rectangular outer box 212. The bottom output end of the stamping device passes through the rectangular outer box 212 and the frame 213 and extends downward. The coupling at the bottom output end of the stamping device is mounted on the outer wall at the top center of the stamping plate 214. A semi-circular protrusion 215 is installed at the top center of the rectangular outer box 212. A reciprocating screw 216 is slidably connected to the center of the semi-circular protrusion 215. The front and back of the reciprocating screw 216 extend outward through the C-shaped gantry 211 and are rotatably connected. A motor 217 is installed on the front of the reciprocating screw 216 and is mounted on the outer wall of the front of the C-shaped gantry 211. The coupling at the output end of the back of the motor 217 is mounted on the outer wall of the front of the reciprocating screw 216. The guide assembly 22 includes several A plurality of cylindrical guide rods 221 are respectively disposed on the left and right sides of a rectangular outer box 212. The cylindrical guide rods 221 are arranged in a circular array around the rectangular outer box 212. The front and back outer walls of the cylindrical guide rods 221 are mounted on the inner wall of the conveyor belt 11. V-shaped sliding plates 222 are mounted on the left and right sides of the rectangular outer box 212, and the top and bottom of the V-shaped sliding plates 222 are slidably connected to the outer walls of the cylindrical guide rods 221. A reciprocating lead screw 21 is driven by a motor 217. The rotation of the 6-axis causes the semi-circular protrusion 215 to move back and forth, and the semi-circular protrusion 215 drives the rectangular outer box 212 and the frame 213 at the bottom to move. The downward movement of the stamping plate 214 cuts the leather on the conveyor belt 11, thus continuously cutting several leather pieces of the same size from the leather material, ensuring the cutting efficiency of the equipment. The V-shaped slide plate 222 is designed in a V shape, and the end of the V-shaped slide plate 222 has an angle with the side of the rectangular outer box 212.

[0037] A specific application of this embodiment is as follows: the leather is placed at the top center of the conveyor belt 11, and then the pull rod 125 is pulled outward to make the X-shaped outer box 1211 locked in place. Then, four U-shaped liner plates 1212 are inserted into the X-shaped outer box 1211 in sequence. Then, the pull rod 125 is released, and the pull rod 125 drives the rectangular slide plate 124 to slide into the X-shaped outer box 1211 under the elastic potential energy of the tension spring 122. This allows the pull rod 125 to be inserted into the round hole on the side of the U-shaped liner plate 1212, thus relocking the X-shaped outer box 1211 and the U-shaped liner plate 1212 together.

[0038] Next, the electric push rod 127 is activated, causing the output end of the electric push rod 127 to push the square and round protrusion 1281 upward. When the square and round protrusion is displaced, it will drive the connecting rod 1291 and connecting rod 3 1293 set on the left and right sides to rotate backward. The connecting rod 3 1293 drives the connecting rod 2 1292 to rotate, causing the platform pressing block 1282 to rotate backward under the drive of the connecting rod 1291 and connecting rod 2 1292. This fixes and presses the shorter leather set at the top center of the conveyor belt 11 to prevent it from shifting during processing.

[0039] Next, the motor 217 is started, causing the reciprocating lead screw 216 to move the rectangular outer box 212 at the bottom center through the semi-circular protrusion 215. When the front or back outer wall of the rectangular outer box 212 contacts the inner wall of the C-shaped gantry 211, it will fold back and move to the other side, thus moving the rectangular outer box 212 at the top of the conveyor belt 11 and adjusting the rectangular outer box 212 to a suitable position for processing and cutting.

[0040] Finally, the stamping equipment inside the rectangular outer box 212 is started, causing the stamping equipment inside the rectangular outer box 212 to move the stamping plate 214 downward, so that the blade at the bottom of the stamping plate 214 contacts and cuts the leather. Then, leather pieces of the same specifications are cut out from the leather in sequence. After the cutting is completed, the equipment is turned off and reset, and then the processed leather pieces are taken out.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A leather cutting device for basketball production, characterized in that, include: Positioning mechanism (1), the positioning mechanism (1) is used to position the leather material required for the equipment to process, the positioning mechanism (1) includes a conveyor belt (11), the front and back of the conveyor belt (11) are provided with a number of U-shaped lining plates (1212), the front of the top outer wall of the U-shaped lining plate (1212) is provided with a square and round protrusion (1281), and a ladder pressing block (1282) is provided above the top outer wall of the U-shaped lining plate (1212). Cutting mechanism (2), the cutting mechanism (2) is used to process leather into a specified style, the cutting mechanism (2) is set at the top center of the positioning mechanism (1), the cutting mechanism (2) includes a rectangular outer box (212), a frame (213) is installed at the bottom of the rectangular outer box (212), and a stamping plate (214) is slidably connected inside the frame (213). The bottom of the stamping plate (214) is equipped with a blade, and the blade of the stamping plate (214) is elliptical.

2. The leather cutting device for basketball production according to claim 1, characterized in that, The positioning mechanism (1) includes a positioning component (12), which is installed on the outside of the conveyor belt (11) and is used to press the leather material to be cut. The outer wall of the positioning component (12) abuts against the outer wall of the conveyor belt (11).

3. The leather cutting device for basketball production according to claim 1, characterized in that, The cutting mechanism (2) includes a cutting component (21), which is disposed at the top center of the conveyor belt (11) and is used to cut the fabric required for processing. A guide component (22) is disposed inside the cut-off component (21) and is used to guide the displacement of the cut-off component (21); The bottom inner wall of the cutting component (21) is in contact with the outer wall of the conveyor belt (11), and the cutting component (21) is C-shaped in general.

4. A leather cutting device for basketball production according to claim 2, characterized in that, The positioning component (12) includes several X-shaped outer boxes (1211). The several X-shaped outer boxes (1211) are divided into two groups of outer box components, each group of outer box components includes two X-shaped outer boxes (1211). The two X-shaped outer boxes (1211) are arranged one in front of the other. The two X-shaped outer boxes (1211) are mirrored with the conveyor belt (11) as the center. The two X-shaped outer boxes (1211) are installed on the outer wall of the conveyor belt (11) with their sides close to each other. The U-shaped liner (1212) is inserted into the center of the top of the X-shaped outer box (1211). A round tube (1213) is installed at the center of the bottom of the U-shaped liner (1212). Rectangular slots (123) are opened on the left and right sides inside the X-shaped outer box (1211). In this case, rectangular slide plates (124) are slidably connected inside the two rectangular slots (123). Two pull rods (125) are installed on the side of the two rectangular slide plates (124) that are far apart from each other. The pull rods (125) extend outward through the X-shaped outer box (1211) and are slidably connected. A tension spring (122) is sleeved on the outer side of the outer wall of the pull rod (125). The inner wall of the rectangular slot (123) and the rectangular slide plate (124) are flexibly connected by the tension spring (122).

5. A leather cutting device for basketball production according to claim 4, characterized in that, Limiting protrusions (126) are installed at the top and bottom of the rectangular slide plate (124). The two limiting protrusions (126) are mirrored with respect to the rectangular slide plate (124). Both rectangular slide plates (124) are slidably connected to the inner wall of the X-shaped outer box (1211). The bottom of the round tube (1213) extends downward through the X-shaped outer box (1211) and is slidably connected. The outer diameter of the round tube (1213) is adapted to the inner diameter of the bottom of the X-shaped outer box (1211) through which it is penetrated.

6. A leather cutting device for basketball production according to claim 5, characterized in that, An electric push rod (127) is installed at the top center of the U-shaped liner (1212). The coupling at the top output end of the electric push rod (127) is installed on the bottom outer wall of the square-round protrusion (1281). A connecting rod (1291) is rotatably connected to the left and right sides of the front of the square-round protrusion (1281). The top rear side of the connecting rod (1291) is rotatably connected to the bottom front of the ladder platform pressure block (1282). The left side of the top of the U-shaped liner (1212) Both the right and left sides are rotatably connected to a second connecting rod (1292). The top of each of the two second connecting rods (1292) is rotatably connected to the bottom center of the platform pressure block (1282). The left and right sides of the second connecting rod (1292) are each provided with a third connecting rod (1293). The bottom front of the third connecting rod (1293) is rotatably connected to the back side wall of the square and round protrusion (1281). The top rear side of the third connecting rod (1293) is rotatably connected to the center of the side wall of the second connecting rod (1292). Among them, the two connecting rods (1291) are horizontally mirrored with the electric push rod (127) as the center.

7. A leather cutting device for basketball production according to claim 3, characterized in that, The cutting assembly (21) includes a C-shaped gantry (211), which is located at the top center of the conveyor belt (11). The bottom outer wall of the C-shaped gantry (211) is mounted on the outer wall of the conveyor belt (11). A rectangular outer box (212) is located at the top center of the C-shaped gantry (211). A stamping device is installed inside the rectangular outer box (212). The bottom output end of the stamping device passes through the rectangular outer box (212) and the frame (213) and extends downward. The coupling at the bottom output end of the stamping device is mounted on the top of the stamping plate (214). On the outer wall of the center, a semi-circular protrusion (215) is installed at the top center of the rectangular outer box (212). A reciprocating screw (216) is slidably connected at the center of the semi-circular protrusion (215). The front and back of the reciprocating screw (216) extend outward through the C-shaped gantry (211) and are rotatably connected. A motor (217) is provided on the front of the reciprocating screw (216). The motor (217) is installed on the outer wall of the front of the C-shaped gantry (211). The coupling at the output end of the back of the motor (217) is installed on the outer wall of the front of the reciprocating screw (216). The guide assembly (22) includes a plurality of cylindrical guide rods (221), which are respectively disposed on the left and right sides of the rectangular outer box (212). The plurality of cylindrical guide rods (221) are arranged in a circular array with the rectangular outer box (212) as the center. The front and back outer walls of the plurality of cylindrical guide rods (221) are installed on the inner wall of the conveyor belt (11). V-shaped sliding plates (222) are installed on the left and right sides of the rectangular outer box (212). The top and bottom of the V-shaped sliding plates (222) are slidably connected to the outer walls of the cylindrical guide rods (221). The V-shaped slide (222) is designed in a V shape, and the end of the V-shaped slide (222) has an angle with the side of the rectangular outer box (212).