Automatic cutting device for rubber ring

Abstract

This utility model relates to the field of rubber ring processing technology and discloses an automatic rubber ring cutting device, including a worktable. A fixing mechanism is provided on the worktable, comprising a driven shaft positioning group and a main shaft positioning assembly. The main shaft positioning assembly includes a motor and a drive roller. A driven roller is provided on the driven shaft positioning group. Products are placed on the driven roller and the drive roller. A cutting mechanism is also provided on the worktable. The cutting mechanism includes: a fourth slide rail fixedly mounted on the worktable; a fourth slider sliding on the fourth slide rail; a fixing block fixedly connected to the fourth slider; a fixing roller with both ends fixedly connected to the fixing block; and multiple blades disposed on the fixing roller. This invention solves the problems of poor adaptability, high switching costs, and low production efficiency of existing equipment.

Description

Technical Field

[0001] This utility model relates to the field of rubber ring processing technology, specifically to an automatic rubber ring cutting device. Background Technology

[0002] In the rubber ring manufacturing industry, cutting annular rubber raw materials to a fixed width is a key process in forming finished rubber rings, and this process requires specialized cutting equipment. Currently, most mainstream rubber ring cutting equipment on the market has a core positioning structure designed for fixed specifications. That is, for rubber ring raw materials of a specific diameter and width, corresponding fixing clamps and positioning components are provided to achieve stable clamping and cutting of the raw materials.

[0003] However, with the increasing demand for diversified rubber ring products in the market, it is often necessary to switch between different specifications of rubber ring raw materials for processing during the production process. At this time, traditional fixed-specification cutting equipment has significant limitations: because the positioning fixture is strongly bound to the raw material specification, each time the specification is changed, the original fixture must be disassembled and replaced with a special fixture adapted to the new specification. This is not only cumbersome and time-consuming, but also requires additional reserves of special fixtures of various specifications, which greatly increases the equipment investment cost and inventory cost.

[0004] Meanwhile, in production scenarios involving small batches and multiple specifications, frequent fixture changes lead to increased equipment downtime, significantly reducing production efficiency and making it difficult to meet the demand for rapid order delivery. Furthermore, while some equipment attempts to adapt to minor specification changes through structural adjustments, the adjustment range is limited and cannot cover rubber ring materials with larger diameters and widths. Moreover, positioning accuracy is difficult to guarantee during the adjustment process, easily resulting in cutting size deviations and affecting the quality stability of the finished rubber rings. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an automatic rubber ring cutting device that is adaptable to different specifications of raw materials, does not require frequent clamp changes, and ensures cutting accuracy and efficiency. It solves the problems of poor adaptability, high switching costs, and low production efficiency of existing equipment.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an automatic rubber ring cutting device, comprising a worktable, a fixing mechanism on the worktable, the fixing mechanism including a driven shaft positioning group and a main shaft positioning assembly, the main shaft positioning assembly including a motor and a drive roller, a driven roller on the driven shaft positioning group, and products on the driven roller and the drive roller; a cutting mechanism is also provided on the worktable, the cutting mechanism including: The fourth slide rail is fixedly mounted on the worktable; The fourth slider slides on the fourth slide rail; A fixing block is fixedly connected to the fourth slider; The fixed roller is fixedly connected to the fixed block at both ends; Multiple blades are disposed on the fixed roller.

[0007] Preferably, the spindle positioning assembly further includes: A fixed frame is fixedly mounted on the workbench, and the motor is fixedly mounted on the fixed frame; A coupling is provided at the output end of the motor, and one end of the drive roller is connected to the coupling; A first slide rail is fixedly mounted on the worktable, and a first slider is provided on the first slide rail for close sliding. A first top block is provided on the first slider, and the first top block and the coupling can fix the drive roller. The first limiting block is slidably fitted onto both ends of the active roller.

[0008] Preferably, the driven shaft positioning group further includes: The second slide rail is disposed on both sides of the upper surface of the worktable, and the direction of the second slide rail is perpendicular to that of the first slide rail; The second slider slides against the second slide rail, and a fixed frame is fixedly provided on the upper surface of the second slider near the fixed frame. One end of the driven roller is connected to the fixed frame. A third slide rail is fixedly provided on the upper surface of the second slider near the first slide rail. A third slider is slidably connected to the third slide rail. A second top block is fixedly connected to the third slider. The second top block abuts against the other end of the driven roller. The second limiting block is slidably fitted onto both ends of the driven roller; The second slide rail is set perpendicular to the first slide rail to ensure that the driven roller remains parallel to the driving roller after adjustment.

[0009] Preferably, the fixed roller is configured with a cavity in the middle, and an adjustment mechanism is provided on the fixed roller, the adjustment mechanism including: Multiple adjustment holes are provided on the side wall of the fixed roller and communicate with the cavity; A sleeve is provided on the adjustment hole; A telescopic groove is formed on the fixed roller and the sleeve. The blade slides in the telescopic groove, and a limit groove is formed on the inner wall of the telescopic groove. A limit block is slidably arranged in the limit groove, and the limit block is fixedly connected to both sides of the blade. The telescopic groove is connected to the cavity through an adjustment hole. A rotating seat is fixedly connected to the worktable. One end of a cylinder is rotatably connected to the rotating seat. One end of a piston rod is slidably disposed inside the cylinder. The piston rod is hollow inside. Air inlets are opened at both ends of the fixed roller. The air inlets are connected to the piston rod through a hose. The hollow part of the piston rod is connected to the inside of the cylinder, and then connected to the cavity of the fixed roller through the hose.

[0010] Preferably, the cutting mechanism further includes a drive assembly, the drive assembly comprising: A servo motor is fixedly mounted on the worktable; The ball screw is connected at one end to the output end of the servo motor, and at the other end is rotatably connected to the worktable via a bearing seat. A lead screw nut is threadedly fitted onto the ball screw and is fixedly connected to the fourth slider; The servo motor drives the ball screw to rotate, and the screw nut drives the fourth slider to move precisely along the fourth slide rail, controlling the contact pressure between the blade and the product and the cutting depth to ensure cutting accuracy.

[0011] Preferably, the second slide rail and the second slider, the third slide rail and the third slider, the first slide rail and the first slider, and the fourth slide rail and the fourth slider are fixed together by bolts.

[0012] Preferably, a wear-resistant sealing ring is provided at the gap between the blade and the telescopic groove to seal the cavity of the fixed roller and avoid pressure loss.

[0013] Preferably, both the driving roller and the driven roller are covered with an anti-slip rubber layer, and the surface of the anti-slip rubber layer is provided with a diamond pattern.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an automatic rubber ring cutting device, which has the following advantages: 1. This automatic rubber ring cutting equipment, through the sliding cooperation of the first slide rail and the first slider, can flexibly adjust the position of the first top block to fix the active roller of different lengths. The driven shaft positioning group, with the help of the second slide rail perpendicular to the first slide rail, realizes the free adjustment of the distance between the driven roller and the active roller. At the same time, the limiting blocks at both ends of the active and driven rollers can accurately limit the position according to the product width. This structure can quickly adapt to rubber ring raw materials of different diameters and widths without changing special clamps, solving the limitation of "one machine, one specification" of traditional equipment. Operators only need to complete the adjustment by sliding the slide rail and fixing with bolts, which reduces the equipment investment cost and greatly improves the production efficiency of small batch and multi-specification orders, meeting the diversified market demand.

[0015] 2. This automatic rubber ring cutting equipment uses air pressure transmission through a cylinder and piston rod to precisely control the extension and retraction of the blade: at the location to be cut, the sleeve seals the telescopic groove of the fixed roller, and the blade remains extended under the action of the return spring; at the location not to be cut, the blade retracts through the negative pressure adsorption of the cavity; at the same time, the limiting blocks on both sides of the blade cooperate with the limiting groove to ensure stable and non-deviation-free blade sliding; this mechanism avoids the disassembly and adjustment process when changing the blade spacing in traditional equipment, and eliminates the need for pre-marking or segmented cutting of the raw material, achieving precise switching of cutting position and quantity, thereby improving cutting accuracy and reducing material waste. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the isometric cross-section of the structure of this utility model from the right view.

[0018] Figure 3 This is a partial structural schematic diagram of the present invention.

[0019] Figure 4 This is a schematic diagram of the isometric cross-sectional structure of part of the present invention.

[0020] Figure 5 This is a schematic diagram of the cutting mechanism structure of this utility model.

[0021] Figure 6 This is an isometric sectional view of the cutting mechanism structure of this utility model.

[0022] Figure 7 This is a schematic diagram of the adjustment mechanism of this utility model.

[0023] Figure 8 This is an isometric sectional view of the adjustment mechanism structure of this utility model.

[0024] In the diagram: 100, workbench; 200. Fixing mechanism; 210. Driven shaft positioning assembly; 211. Second slide rail; 212. Second slider; 213. Third slide rail; 214. Third slider; 215. Driven roller; 216. Second top block; 217. Second limit block; 218. Fixed frame; 220. Main shaft positioning assembly; 221. Fixed frame; 222. Motor; 223. Coupling; 224. Drive roller; 225. First limit block; 226. First slide rail; 227. First slider; 228. First top block; 300. Cutting mechanism; 310. Fourth slide rail; 320. Fourth slider; 330. Fixing block; 340. Fixing roller; 341. Adjusting hole; 342. Limiting groove; 343. Limiting block; 344. Sleeve; 345. Telescopic groove; 346. Air inlet; 350. Blade; 360. Rotating seat; 370. Cylinder; 380. Piston rod; 390. Hose; 400. Products. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In addition, a fixed connection refers to a connection in which parts or components are fixed and there is no relative movement; a transmission connection refers to a connection in which mechanical motion or torque is transmitted to other working parts through a transmission component; a sliding connection refers to a connection in which two objects are in contact but not fixed and can slide relative to each other; and a rotational connection refers to a connection in which two objects are in contact but not fixed and can rotate relative to each other.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Example 1: This embodiment provides an automatic rubber ring cutting device, which has the following technical features.

[0030] Please see Figure 1-8An automatic rubber ring cutting device includes a worktable 100, on which a fixing mechanism 200 is provided. The fixing mechanism 200 includes a driven shaft positioning assembly 210 and a main shaft positioning assembly 220. The main shaft positioning assembly 220 includes a motor 222 and a drive roller 224. A driven roller 215 is provided on the driven shaft positioning assembly 210. A product 400 is provided on the driven roller 215 and the drive roller 224. A cutting mechanism 300 is also provided on the worktable 100. The cutting mechanism 300 includes: The fourth slide rail 310 is fixedly mounted on the worktable 100; The fourth slider 320 slides on the fourth slide rail 310; The fixing block 330 is fixedly connected to the fourth slider 320; The fixed roller 340 is fixedly connected to the fixed block 330 at both ends; Multiple blades 350 are mounted on a fixed roller 340.

[0031] It should be noted that after adjusting the driven shaft positioning group 210 and the main shaft positioning assembly 220 to the appropriate positions, the product 400 is fitted onto the driven shaft positioning group 210 and the main shaft positioning assembly 220. The fourth slider 320 is then slid along the fourth slide rail 310 to a position where the blade 350 contacts the product 400 and can be cut, and then fixed. The number of blades 350 and the distance between each pair of blades 350 are adjusted according to the required size of the finished rubber ring. Then, the motor 222 is controlled to drive the drive roller 224 to rotate, which in turn drives the product 400 to rotate, thereby cutting the product 400 into multiple appropriate sizes to form a standard finished product.

[0032] In an optional embodiment, the spindle positioning assembly 220 further includes: The fixed frame 221 is fixedly mounted on the worktable 100, and the motor 222 is fixedly mounted on the fixed frame 221; Coupling 223 is located at the output end of motor 222, and one end of drive roller 224 is connected to coupling 223; The first slide rail 226 is fixedly mounted on the worktable 100, and the first slide rail 226 is provided with a first slider 227 that slides in contact with the worktable. The first slider 227 is provided with a first top block 228, and the first top block 228 and the coupling 223 can fix the drive roller 224. The first limiting block 225 is slidably fitted onto both ends of the drive roller 224.

[0033] It should be noted that the first slider 227 moves along the first slide rail 226 in a direction parallel to the direction set by the active roller 224. The first limit blocks 225 at both ends are adjusted according to the width of the product 400 to limit the product 400 between the two first limit blocks 225. This ensures that the product 400 will not deviate when the motor 222 drives the active roller 224 to rotate, thus enabling the product 400 to be cut accurately.

[0034] In an optional embodiment, the driven shaft positioning assembly 210 further includes: The second slide rail 211 is provided on both sides of the upper surface of the worktable 100, and the direction of the second slide rail 211 is perpendicular to the first slide rail 226. The second slider 212 slides against the second slide rail 211, and a fixed frame 218 is fixedly provided on the upper surface of the end of the second slider 212 near the fixed frame 221. One end of the driven roller 215 is connected to the fixed frame 218. A third slide rail 213 is fixedly provided on the upper surface of the end of the second slider 212 near the first slide rail 226. A third slider 214 is slidably connected to the third slide rail 213. A second top block 216 is fixedly connected to the third slider 214. The second top block 216 abuts against the other end of the driven roller 215. The second limiting block 217 is slidably fitted onto both ends of the driven roller 215; The second slide rail 211 is set perpendicular to the first slide rail 226 to ensure that the driven roller 215 remains parallel to the driving roller 224 after adjustment.

[0035] It should be noted that adjusting the position of the second slider 212 on the second slide rail 211 allows for adjustment of the distance between the driven roller 215 and the driving roller 224, facilitating the fitting of products 400 of different sizes onto the driven roller 215 and the driving roller 224. Controlling the positions of the third slider 214 on the third slide rail 213 and the first slider 227 on the first slide rail 226 allows the two top blocks to fix the driven roller 215 and the driving roller 224 respectively. Simultaneously, controlling the positions of the two first limit blocks 225 and the two second limit blocks 217 limits the product 400, ensuring that when the motor 222 drives the driving roller 224 to rotate, it can drive the product 400 to rotate, thereby allowing the blades 350 at different intervals to contact the product 400 and cut the product 400 into the required size.

[0036] In an optional embodiment, the fixed roller 340 is configured with a cavity in the middle, and an adjustment mechanism is provided on the fixed roller 340. The adjustment mechanism includes: Multiple adjustment holes 341 are provided on the side wall of the fixed roller 340 and communicate with the cavity; Sleeve 344 is mounted on adjustment hole 341; The telescopic groove 345 is formed on the fixed roller 340 and the sleeve 344. The blade 350 slides in the telescopic groove 345. A limiting groove 342 is formed on the inner wall of the telescopic groove 345. A limiting block 343 is slidably arranged in the limiting groove 342. The limiting block 343 is fixedly connected to both sides of the blade 350. The telescopic groove 345 is connected to the cavity through the adjustment hole 341. A rotating seat 360 is fixedly connected to the worktable 100. One end of a cylinder 370 is rotatably connected to the rotating seat 360. One end of a piston rod 380 is slidably arranged inside the cylinder 370. The piston rod 380 is hollow inside. Air inlets 346 are opened at both ends of the fixed roller 340. The air inlets 346 are connected to the piston rod 380 through a hose 390. The hollow part of the piston rod 380 is connected to the inside of the cylinder 370, and then connected to the cavity of the fixed roller 340 through the hose 390.

[0037] It should be noted that after the product 400 is spread out and limited on the driving roller 224 and the driven roller 215, the positions of the sleeve 344 and the fixed roller 340 are adjusted according to the required dimensions so that the expansion groove 345 on the fixed roller 340 at the position where the product 400 needs to be cut fits against the inner wall of the sleeve 344, and the expansion groove 345 on the fixed roller 340 at the position where it does not need to be cut connects with the expansion groove 345 on the sleeve 344. Then, by adjusting the position of the fourth slider 320 on the fourth slide rail 310, the blade 350 contacts the product 400. Thus, when the fourth slider 320 is pushed to move the fixed roller 340 away from the rotating seat 360, the piston rod 380 and the cylinder 370 undergo relative displacement, and the cylinder 370... The part is a sealed cavity. When the piston rod 380 is stretched, the volume of the sealed cavity increases and the pressure decreases. This pressure is transmitted to the cavity of the fixed roller 340 through the hose 390, causing the cavity pressure to decrease synchronously. This allows the base of the blade 350 at the position that does not need to be cut to be attracted into the interior of the telescopic groove 345. This ensures that the blade edge of the blade 350 at the position that does not need to be cut is lower than the blade edge at the position that needs to be cut. After the sleeve 344 at the position that needs to be cut rotates, its telescopic groove 345 is completely misaligned with the telescopic groove 345 on the fixed roller 340. The inner wall of the sleeve blocks the telescopic groove of the fixed roller, so that the blade 350 at that position is not affected by the cavity pressure and remains in the extended state. The telescopic groove of the sleeve at the position that does not need to be cut is aligned with the telescopic groove of the fixed roller, and the attracted blade retracts after the cavity pressure decreases.

[0038] Furthermore, a return spring is installed at the bottom of the blade, which keeps it extended by the spring force when the sleeve is sealed.

[0039] In an optional embodiment, the cutting mechanism 300 further includes a drive component, which includes: The servo motor is fixedly mounted on the worktable 100; The ball screw is connected at one end to the output end of the servo motor, and at the other end is rotatably connected to the worktable 100 through a bearing seat. The lead screw nut is threaded onto the ball screw and is fixedly connected to the fourth slider 320; The servo motor drives the ball screw to rotate, which in turn drives the fourth slider 320 to move precisely along the fourth slide rail 310 via the screw nut. This controls the contact pressure and cutting depth between the blade 350 and the product 400, ensuring cutting accuracy.

[0040] In an optional embodiment, the second slide rail 211 and the second slider 212, the third slide rail 213 and the third slider 214, the first slide rail 226 and the first slider 227, and the fourth slide rail 310 and the fourth slider 320 are fixed together by bolts.

[0041] In an optional embodiment, a wear-resistant sealing ring is provided at the gap between the blade 350 and the telescopic groove 345 to seal the cavity of the fixed roller 340 and prevent pressure loss.

[0042] In an optional embodiment, both the active roller 224 and the driven roller 215 are covered with an anti-slip rubber layer, and the surface of the anti-slip rubber layer is provided with a diamond pattern with a pattern depth of 0.5mm to 1mm.

[0043] Working principle: First, based on the dimensions of the rubber ring material to be processed, the position of the first top block 228 is adjusted by the first slide rail 226 and the first slider 227 of the main shaft positioning assembly 220, fixing the corresponding length of the drive roller 224. At the same time, the second slider 212 is slid by the second slide rail 211 (perpendicular to the first slide rail 226) of the driven shaft positioning assembly 210 to adjust the distance between the driven roller 215 and the drive roller 224. Then, the product width is limited by the limiting blocks 343 at both ends of the drive and driven rollers 215, completing the adaptation and fixing of the material on the two rollers. Different specifications of materials can be met without changing the fixture. Next, according to the finished product size requirements, the position of the sleeve 344 on the fixed roller 340 is adjusted so that the sleeve 344 at the cutting point blocks the telescopic groove 345 of the fixed roller 340 (blade). The blade 350 is kept extended under the action of the return spring. The sleeve 344 at the uncut end is aligned with the telescopic groove 345 of the fixed roller 340. Then, the air pressure is transmitted through the cylinder 370 and the piston rod 380, so that the cavity of the fixed roller 340 forms a negative pressure to attract the corresponding blade 350 to retract, realizing the precise switching of the cutting position and quantity. Finally, the servo motor 222 is started to drive the ball screw to rotate, and the fourth slider 320 is driven to move precisely along the fourth slide rail 310 through the screw nut, controlling the contact pressure and cutting depth between the blade 350 and the raw material. At the same time, the active roller 224 motor 222 is started to drive the raw material to rotate at a uniform speed, so that the extended blade 350 completes the cutting along the circumference of the raw material, and finally obtains a rubber ring with accurate dimensions and a flat cut. The entire process takes into account adaptability, accuracy and stability.

[0044] In summary, this automatic rubber ring cutting equipment, through the sliding cooperation of the first slide rail 226 and the first slider 227, can flexibly adjust the position of the first top block 228 to fix the active roller 224 of different lengths. The driven shaft positioning group 210, with the help of the second slide rail 211 perpendicular to the first slide rail 226, realizes the free adjustment of the distance between the driven roller 215 and the active roller 224. At the same time, the limiting blocks 343 at both ends of the active and driven rollers 215 can accurately limit the width of the product 400. This structure can quickly adapt to rubber ring raw materials of different diameters and widths without changing special clamps, solving the limitation of "one machine, one specification" of traditional equipment. Operators only need to complete the adjustment by sliding the slide rail and fixing with bolts, which reduces the equipment investment cost and greatly improves the production efficiency of small batch and multi-specification orders, meeting the diversified market demand.

[0045] This automatic rubber ring cutting device precisely controls the extension and retraction of the blade 350 through air pressure transmission between the cylinder 370 and the piston rod 380. At the location where cutting is needed, the sleeve 344 blocks the telescopic groove 345 of the fixing roller 340, and the blade 350 remains extended under the action of the return spring. At the location where cutting is not needed, the blade 350 retracts through the negative pressure adsorption of the cavity. At the same time, the limiting blocks 343 on both sides of the blade 350 cooperate with the limiting groove 342 to ensure that the blade 350 slides stably without deviation. This mechanism avoids the disassembly and adjustment process when changing the spacing of the blade 350 in traditional equipment, and does not require pre-marking or segmented cutting of the raw material. It achieves precise switching of cutting position and quantity, thereby improving cutting accuracy and reducing material waste.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic rubber ring cutting device, comprising a worktable (100), characterized in that: A fixing mechanism (200) is provided on the worktable (100). The fixing mechanism (200) includes a driven shaft positioning group (210) and a main shaft positioning assembly (220). The main shaft positioning assembly (220) includes a motor (222) and a drive roller (224). A driven roller (215) is provided on the driven shaft positioning group (210). A product (400) is provided on the driven roller (215) and the drive roller (224). A cutting mechanism (300) is also provided on the worktable (100). The cutting mechanism (300) includes: The fourth slide rail (310) is fixedly mounted on the worktable (100); The fourth slider (320) slides on the fourth slide rail (310); A fixing block (330) is fixedly connected to the fourth slider (320); The fixed roller (340) is fixedly connected to the fixed block (330) at both ends; Multiple blades (350) are disposed on the fixed roller (340).

2. The automatic rubber ring cutting device according to claim 1, characterized in that, The spindle positioning assembly (220) also includes: A fixed frame (221) is fixedly mounted on the workbench (100), and the motor (222) is fixedly mounted on the fixed frame (221); A coupling (223) is provided at the output end of the motor (222), and one end of the drive roller (224) is connected to the coupling (223); The first slide rail (226) is fixedly mounted on the worktable (100), and the first slide rail (226) is provided with a first slider (227) that slides in contact with the worktable (100). The first slider (227) is provided with a first top block (228), and the first top block (228) and the coupling (223) can fix the drive roller (224). The first limiting block (225) is slidably fitted onto both ends of the active roller (224).

3. The automatic rubber ring cutting device according to claim 2, characterized in that, The driven shaft positioning assembly (210) further includes: The second slide rail (211) is disposed on both sides of the upper surface of the worktable (100), and the direction of the second slide rail (211) is perpendicular to the first slide rail (226); The second slider (212) slides against the second slide rail (211), and a fixed frame (218) is fixedly provided on the upper surface of the second slider (212) near the fixed frame (221). One end of the driven roller (215) is connected to the fixed frame (218). A third slide rail (213) is fixedly provided on the upper surface of the second slider (212) near the first slide rail (226). A third slider (214) is slidably connected to the third slide rail (213). A second top block (216) is fixedly connected to the third slider (214). The second top block (216) abuts against the other end of the driven roller (215). The second limiting block (217) is slidably fitted onto both ends of the driven roller (215); The second slide rail (211) is set perpendicular to the first slide rail (226) to ensure that the driven roller (215) remains parallel to the driving roller (224) after adjustment.

4. The automatic rubber ring cutting device according to claim 1, characterized in that, The fixed roller (340) is hollow in the middle, and an adjustment mechanism is provided on the fixed roller (340). The adjustment mechanism includes: Multiple adjustment holes (341) are provided on the side wall of the fixed roller (340) and communicate with the cavity; A sleeve (344) is disposed on the adjusting hole (341); A telescopic groove (345) is formed on the fixed roller (340) and the sleeve (344). The blade (350) slides in the telescopic groove (345). A limiting groove (342) is formed on the inner wall of the telescopic groove (345). A limiting block (343) is slidably arranged in the limiting groove (342). The limiting block (343) is fixedly connected to both sides of the blade (350). The telescopic groove (345) is connected to the cavity through the adjustment hole (341). A rotating seat (360) is fixedly connected to the worktable (100). One end of a cylinder (370) is rotatably connected to the rotating seat (360). One end of a piston rod (380) is slidably arranged inside the cylinder (370). The piston rod (380) is hollow inside. Air inlets (346) are opened at both ends of the fixed roller (340). The air inlets (346) are connected to the piston rod (380) through a hose (390). The hollow part of the piston rod (380) is connected to the inside of the cylinder (370) and then connected to the cavity of the fixed roller (340) through the hose (390).

5. The automatic rubber ring cutting device according to claim 1, characterized in that, The cutting mechanism (300) further includes a drive assembly, the drive assembly comprising: A servo motor is fixedly mounted on the worktable (100); The ball screw is connected at one end to the output end of the servo motor, and at the other end is rotatably connected to the worktable (100) through a bearing seat; The lead screw nut is threaded onto the ball screw and is fixedly connected to the fourth slider (320); The servo motor drives the ball screw to rotate, and the screw nut drives the fourth slider (320) to move precisely along the fourth slide rail (310). The extension direction of the fourth slide rail (310) is perpendicular to the axis of the active roller (224), which controls the contact pressure and cutting depth between the blade (350) and the product (400) to ensure cutting accuracy.

6. The automatic rubber ring cutting device according to claim 3, characterized in that, The second slide rail (211) and the second slider (212), the third slide rail (213) and the third slider (214), the first slide rail (226) and the first slider (227), and the fourth slide rail (310) and the fourth slider (320) are fixed by bolts.

7. The automatic rubber ring cutting device according to claim 1, characterized in that, A wear-resistant sealing ring is provided at the gap between the blade (350) and the telescopic groove (345) to seal the cavity of the fixed roller (340) and avoid pressure loss.

8. The automatic rubber ring cutting device according to claim 1, characterized in that, Both the active roller (224) and the driven roller (215) are covered with an anti-slip rubber layer, and the surface of the anti-slip rubber layer is provided with a diamond pattern.

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