Automatic cutting device for silica gel ring inner hole site crosscut groove

Abstract

This invention relates to the field of sealing ring processing technology, specifically to an automated cutting device for the cross-shaped groove in the inner hole of silicone rings. The device includes a frame and a turntable. A carrier plate transports and discharges silicone workpieces on the turntable. A pressure plate, in conjunction with the turntable, clamps the silicone workpieces. A top and bottom cross-shaped cutter cuts the silicone workpieces on the frame. A loading robot loads the silicone workpieces. This device, through the cooperation of the pressure plate and carrier plate, can completely fix the silicone workpieces, avoiding errors caused by workpiece displacement during cutting. Furthermore, the guidance of the top and bottom cross-shaped holes effectively prevents errors caused by the offset of the top and bottom cross-shaped cutter ends. The rotation of the carrier plate and the airflow from the jet pipe effectively unload the processed silicone workpieces from the carrier plate, improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of sealing ring processing technology, specifically to an automated cutting device for the cross-shaped groove in the inner hole of a silicone ring. Background Technology

[0002] Silicone gaskets, as common sealing elements, are widely used in hydraulics, pneumatics, automobiles, and electronic equipment. In some applications, external rods need to pass through the center hole of the silicone gasket to achieve a sealing fit. In traditional designs, silicone gaskets require a pre-set center hole of a specific diameter, and rods of different diameters require silicone gaskets of different specifications, resulting in a wide variety of parts and complex management.

[0003] To address this issue, one improvement involves machining a cross-shaped groove in the center of the silicone ring. This means machining a cross-shaped groove on each of the top and bottom sides, concentric and offset at 45 degrees, forming a cross shape. This allows the silicone ring to be quickly torn apart when a rod is inserted from either direction. Neither the top nor bottom cross-shaped grooves cut through the ring; only the center, where the grooves meet, forms a through hole. During use, the outer rod passes through the central through hole. As the rod is inserted, the cross-shaped groove gradually tears and expands, thus adapting to rods of different diameters while maintaining good sealing performance.

[0004] Existing processing equipment mainly uses grooves or clamps to position the silicone ring during processing. The silicone ring also needs to be flipped during the cutting process, which causes the upper and lower cross grooves to not form a cross shape correctly. Moreover, after the silicone ring is cut, the central hole leaks air, so it is not possible to use a negative pressure suction cup to discharge the material, and it is also inconvenient to use a clamp to grab it. Manual discharge is inefficient.

[0005] Therefore, it is difficult to meet the requirements for processing accuracy and efficiency. In view of this, this application provides an automated cutting device for the cross-shaped groove in the inner hole of a silicone ring. Summary of the Invention

[0006] This invention provides the following technical solution: an automated cutting device for the cross-shaped groove of the inner hole of a silicone ring, comprising a frame, a turntable driven by a main motor on the frame, and a controller mounted on the frame. A top cutting push rod and a bottom cutting push rod respectively drive a top cross blade and a bottom cross blade on the frame. A gear and a support plate are rotatably mounted on the turntable, and the gear and the support plate are connected by a torsion spring. A silicone workpiece is placed above the support plate, and a pressure plate for pressing the support plate and the silicone workpiece is hinged on the frame. A mating pressure block is fixed on the support plate, and a limiting block that fits against the mating pressure block is fixed on the frame to limit the rotational position of the support plate. A sliding guide rod and a pushing rack are driven by an adjusting push rod at the bottom of the turntable, and the pushing rack meshes with the gear. The sliding guide rod is used to push the pressure plate to rotate.

[0007] The bottom of the bearing plate is provided with a bottom cross hole for guiding the bottom cross blade to cut the silicone workpiece, and the top of the pressure plate is provided with a top cross hole for guiding the top cross blade to cut the silicone workpiece. The top cross hole and the bottom cross hole are concentric and deflected at a 45-degree angle to each other to form a star shape. The controller is electrically connected to the main motor, the top cutting push rod, the bottom cutting push rod and the adjusting push rod respectively.

[0008] Preferably, a loading robot for transporting silicone workpieces from an external conveyor belt or cylinder to a carrier tray is fixedly installed on the frame. The loading robot includes an angle-adjusting motor fixedly installed at the bottom of the frame, and a lifting push rod is coaxially fixedly installed at the output end of the angle-adjusting motor. A rotating arm is fixedly installed at the output end of the lifting push rod, and a negative pressure pump is fixedly installed on the rotating arm. A negative pressure suction cup for adsorbing silicone workpieces is fixedly installed at the end of the rotating arm, and the negative pressure suction cup is connected to the negative pressure pump through a control valve. The angle-adjusting motor, lifting push rod, negative pressure pump, and control valve are all electrically connected to a controller.

[0009] Preferably, the front end of the frame is provided with a collection box for collecting the processed silicone workpieces, and a blow pump is fixedly installed on the frame. The output end of the blow pump blows the silicone workpieces located below the support plate into the collection box for collection through a jet pipe, and the blow pump is electrically connected to the controller.

[0010] Preferably, the sliding guide rod is connected to a first slider and a second slider that slide along the sliding guide rod by a return spring, and a rocker arm that drives the pressure plate to rotate is fixed on the rotating shaft of the pressure plate between the corresponding first slider and the second slider. The first slider and the second slider are used to squeeze the rocker arm to rotate.

[0011] Preferably, the frame is provided with an annular guide rail concentric with the turntable, and the edge of the turntable slides along the annular guide rail.

[0012] Preferably, a conductive slip ring is provided between the turntable and the frame, and the controller and the adjusting push rod are electrically connected through the conductive slip ring. The adjusting push rod, the top cutting push rod, and the bottom cutting push rod are all electric push rods, and the main motor is a stepper motor.

[0013] Compared with the prior art, the advantages of the automated cutting device for the cross-shaped groove in the inner hole of a silicone ring according to the present invention are:

[0014] 1. The cooperation of the pressure plate and the support plate can completely fix the silicone workpiece, avoiding errors caused by the silicone workpiece shifting during the cutting process. Moreover, the guidance of the top and bottom cross holes can also effectively avoid errors caused by the offset of the top and bottom cross cutters due to the tool tip.

[0015] 2. By flipping the carrier plate and blowing air through the jet pipe, the processed silicone workpiece can be effectively unloaded from the carrier plate, thus achieving automatic unloading and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention;

[0017] Figure 2 This is a side view of the structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the loading robot in this invention;

[0019] Figure 4 This is a schematic diagram of the frame structure in this invention;

[0020] Figure 5 This is a schematic diagram of the installation of the turntable and pressure plate in this invention;

[0021] Figure 6 This is a side view showing the installation of the turntable and pressure plate in this invention;

[0022] Figure 7 This is a schematic diagram of the installation of the pressure plate and the sliding guide rod in this invention;

[0023] Figure 8 This is a cross-sectional view of the bearing disk in this invention.

[0024] In the diagram: 1. Frame; 2. Loading robot; 201. Control valve; 202. Negative pressure suction cup; 203. Negative pressure pump; 204. Rotary arm; 205. Lifting push rod; 206. Angle adjustment motor; 3. Controller; 4. Jet pump; 5. Jet pipe; 6. Collection box; 7. Main motor; 8. Bottom cutting push rod; 9. Bottom cross blade; 10. Top cutting push rod; 11. Top cross blade; 12. Turntable; 13. Adjusting push rod; 14. Bearing plate; 15. Pressure plate; 16. Top cross hole; 17. Matching pressure block; 19. Sliding guide rod; 20. Bottom cross hole; 21. Silicone workpiece; 22. First slider; 23. Return spring; 24. Second slider; 25. Swing rod; 26. Push rack; 27. Torsion spring; 28. Gear; 29. ​​Limit block; 30. Circular guide rail. Detailed Implementation

[0025] To clearly and completely describe the objectives and technical solutions of this invention, and to more clearly illustrate its advantages, the embodiments of this invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this invention, and are merely used to explain the embodiments of this invention. They are not intended to limit the embodiments of this invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] Example 1: Please refer to Figure 1 , Figure 2 and Figure 4 This invention provides an automated cutting device for the cross-shaped groove of the inner hole of a silicone ring, including a frame 1. A turntable 12 is driven on the frame 1 by a main motor 7, and a controller 3 is installed on the frame 1. A top cross blade 11 and a bottom cross blade 9 are driven on the frame 1 by a top cutting push rod 10 and a bottom cutting push rod 8, respectively. An annular guide rail 30 concentric with the turntable 12 is provided on the frame 1, and the edge of the turntable 12 slides along the annular guide rail 30. The annular guide rail 30 is used to reduce the friction between the turntable 12 and the frame 1, and at the same time, the frame 1 can support the edge of the turntable 12, thus reducing the impact of the deformation of the turntable 12 on the cutting accuracy. The front of the frame 1 is the unloading station, where the cut silicone workpiece 21 is unloaded. The right side of the frame 1 is the loading station, where the silicone workpiece 21 is loaded manually or by other automatic loading equipment. The rear side of the frame 1 is the upper cutting station, where the top cross blade 11 cuts grooves into the silicone workpiece 21. The left side of the frame 1 is the lower cutting station, where the bottom cross blade 9 cuts grooves into the silicone workpiece 21.

[0027] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 ,and Figure 8 A gear 28 and a carrier disk 14 are rotatably mounted on a turntable 12. Multiple carrier disks 14 can be set as needed, for example, four in a circular array, which enables rapid continuous production and improves processing efficiency. The gear 28 and the carrier disk 14 are connected by a torsion spring 27. When the gear 28 rotates, if the carrier disk 14 can rotate, the torsion spring 27 drives the carrier disk 14 to rotate. If the carrier disk 14 cannot rotate, the torsion spring 27 stores elastic potential energy, which facilitates the normal rotation of the gear 28. The upper part of the support plate 14 is used to place the silicone workpiece 21, and a pressure plate 15 for pressing the support plate 14 and the silicone workpiece 21 is hinged on the frame 1. A mating pressure block 17 is fixed on the support plate 14, and a limiting block 29 that fits against the mating pressure block 17 to limit the rotation position of the support plate 14 is fixed on the frame 1. When the opening of the support plate 14 is facing upward and in a horizontal position, the mating pressure block 17 is pressed against the upper part of the limiting block 29. At this time, the limiting block 29 is used to keep the support plate 14 in a horizontal position, and the torsion spring 27 will no longer be able to drive the support plate 14 to rotate toward the side of the limiting block 29. When the support plate 14 rotates in the opposite direction to the opening facing downward to discharge the silicone workpiece 21, the support plate 14 can rotate up to the position where the mating pressure block 17 can press against the lower part of the limiting block 29. At this time, the torsion spring 27 can no longer drive the support plate 14 to rotate. Therefore, the limiting block 29 limits the rotation angle of the support plate 14. The bottom of the turntable 12 is driven by an adjusting push rod 13 to drive a sliding guide rod 19 and a push rack 26, with the push rack 26 meshing with a gear 28. The sliding guide rod 19 is used to push the pressure plate 15 to rotate. Inside the sliding guide rod 19, a first slider 22 and a second slider 24 that slide along the sliding guide rod 19 are connected by a return spring 23. A swing rod 25 that drives the pressure plate 15 to rotate is fixed on the rotating shaft of the pressure plate 15 between the first slider 22 and the second slider 24. The first slider 22 and the second slider 24 are used to press the swing rod 25 to perform rotation. When the rack 26 is pushed to drive the bearing plate 14 to flip downwards, as the sliding guide rod 19 moves toward the direction closer to the adjusting push rod 13, the first slider 22 will also push the swing rod 25 to move, thereby causing the pressure plate 15 to flip upwards and open. When the rack 26 is pushed to drive the bearing plate 14 to flip upwards, as the sliding guide rod 19 moves toward the direction away from the adjusting push rod 13, the second slider 24 will also push the swing rod 25 to move, thereby allowing the pressure plate 15 to flip downwards again and press against the top of the bearing plate 14.

[0028] Please refer to Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7and Figure 8 The bottom of the support plate 14 has a bottom cross hole 20 for guiding the bottom cross blade 9 to cut the silicone workpiece 21, and the top of the pressure plate 15 has a top cross hole 16 for guiding the top cross blade 11 to cut the silicone workpiece. The top cross hole 16 and the bottom cross hole 20 are concentric and offset from each other at a 45-degree angle to form a star shape. The corresponding top cross blade 11 can be inserted into the top cross hole 16 at the upper cutting position, and the bottom cross blade 9 can be inserted into the bottom cross hole 20 at the lower cutting position. The controller 3 is electrically connected to the main motor 7, the top cutting push rod 10, the bottom cutting push rod 8, and the adjusting push rod 13. A conductive slip ring is provided between the turntable 12 and the frame 1, and the controller 3 is electrically connected to the adjusting push rod 13 through the conductive slip ring. The adjusting push rod 13, the top cutting push rod 10, and the bottom cutting push rod 8 are all electric push rods, and the main motor 7 is a stepper motor.

[0029] Working principle: When the main motor 7 drives the bearing plate 14 to the corresponding feeding station, the pressure plate 15 is in the upward opening state, and the bearing plate 14 is in the horizontal state with the opening facing upward. Then, the material is fed manually or by other automatic feeding equipment. After the feeding is completed, the adjusting push rod 13 drives the sliding guide rod 19 and the pushing rack 26 to move away from the adjusting push rod 13. At this time, since the bearing plate 14 is already in a horizontal position and is pressed against the limit block 29 with the pressure block 17, the bearing plate 14 will not be able to continue to rotate in this direction. As the pushing rack 26 moves, the torsion spring 27 will be used to store elastic potential energy, and the second slider 24 can push the swing rod 25 to move until the pressure plate 15 is pressed against the bearing plate 14 and the silicone workpiece 21. Then, the sliding guide rod 19 and the pushing rack 26 continue to move away from the adjusting push rod 13 to the limit position. At this time, since the pressure plate 15 is already pressed against the bearing plate 14, the second slider 24 will not be able to push the swing rod 25 to move. The return spring 23 used to connect the second slider 24 and the sliding guide rod 19 will be in a compressed state and store elastic potential energy. This elastic potential energy will be used to provide locking force for the pressure plate 15. Subsequently, the carrier plate 14 is transported to the upper cutting station by the main motor 7. The top cross cutter 11 will cut a cross groove of a specified depth into the silicone workpiece 21 through the top cross hole 16. Generally, this depth should exceed half the thickness of the corresponding area of ​​the silicone workpiece 21 but not cut through. Since the bottom cross hole 20 and the top cross hole 16 are staggered, the top cross cutter 11 will not correspond to the bottom cross hole 20 during the cutting process. The bottom of the carrier plate 14 can provide good support for the corresponding position of the silicone workpiece 21, thereby avoiding deformation of the silicone workpiece 21 during the cutting process and affecting the cutting accuracy. After cutting, the main motor 7 transports the carrier plate 14 to the lower cutting station again. At this station, the bottom cross blade 9 cuts the silicone workpiece 21 to the same depth as the top cross blade 11, but does not cut through the silicone workpiece 21, thus forming a cross groove. However, since the central area of ​​the silicone workpiece 21 is cut by both the bottom cross blade 9 and the top cross blade 11, the two cross grooves intersect at this point, and the cutting depth of both cross grooves exceeds half the thickness at this point. Therefore, the center will be cut through, forming a central hole that is convenient to fit on the rod during use. With this central hole as the center, the two cross grooves form a star shape. When the external rod enters the central hole, it will gradually tear the two cross grooves, allowing the silicone workpiece to adaptively fit onto the rod for sealing. When the bottom cross blade 9 is cutting, the pressure plate 15 will restrict the upward movement of the silicone workpiece 21 under the locking force provided by the return spring 23, thus accurately limiting the position of the silicone workpiece 21 and preventing changes in the cutting depth of the silicone workpiece 21.After the cutting is completed, the main motor 7 will drive the bearing plate 14 to the unloading station. At the unloading station, the adjusting push rod 13 will drive the sliding guide rod 19 and the push rack 26 to move towards the adjusting push rod 13. As the sliding guide rod 19 and the push rack 26 move, the elastic potential energy on the return spring 23 that connects the second slider 24 and the sliding guide rod 19 decreases until the first slider 22 begins to push the swing rod 25 and flip the pressure plate 15 upward to the open position. During this process, the elastic potential energy on the torsion spring 27 will also decrease until the pressure plate 15 is opened. The elastic potential energy on the torsion spring 27 will then disappear completely. Afterward, the adjusting push rod 13 will continue to drive the sliding guide rod 19 and the push rack 26 towards the unloading station. The adjusting push rod 13 moves in the direction of the movement. Since the pressure plate 15 is already open and cannot move further in that direction, the return spring 23 connecting the first slider 22 and the sliding guide rod 19 will continue to be compressed and store elastic potential energy. The carrier plate 14 will be driven by the torsion spring 27 to flip downward to its limit position and discharge the silicone workpiece 21 downward, thus completing the material discharge operation. After the material discharge is completed, the adjusting push rod 13 drives the sliding guide rod 19 and pushes the rack 26 to move away from the adjusting push rod 13, causing the carrier plate 14 to flip upward to a horizontal position. During this process, since the elastic potential energy on the return spring 23 connecting the first slider 22 and the sliding guide rod 19 has not been completely released, the pressure plate 15 remains open. Subsequently, the main motor 7 transports the carrier plate 14 to the loading station to wait for loading. The above-described cyclic operation enables automated grooving of the silicone workpiece 21. Throughout the process, automatic positioning and high cutting accuracy are achieved. Automatic clamping and material discharge are also effectively realized. Furthermore, the cutting method allows for precise control of the movement steps of the pressure plate 15 and the carrier plate 14 through physical structural linkage, avoiding the cumulative motion deviation caused by using multiple motors to control the coordinated movement of the pressure plate 15 and the carrier plate 14. This makes the process easier to control and also saves costs.

[0030] Example 2: Please refer to 1 to Figure 3Based on Embodiment 1, a loading robot 2 for transporting silicone workpieces 21 in an external conveyor belt or cylinder to a carrier plate 14 is fixedly installed on the frame 1. The loading robot 2 includes an angle adjustment motor 206 fixedly installed at the bottom of the frame 1, and a lifting push rod 205 is coaxially fixedly installed at the output end of the angle adjustment motor 206. A rotating arm 204 is fixedly installed at the output end of the lifting push rod 205, and a negative pressure pump 203 is fixedly installed on the rotating arm 204. A negative pressure suction cup 202 for adsorbing silicone workpieces 21 is fixedly installed at the end of the rotating arm 204, and the negative pressure suction cup 202 is connected to the negative pressure pump 203 through a control valve 201. The angle adjustment motor 206, the lifting push rod 205, the negative pressure pump 203 and the control valve 201 are all electrically connected to the controller 3. The angle adjustment motor 206 is a stepper motor, used to switch the negative pressure suction cup 202 between the corresponding carrier plate and the corresponding external feeding device. The lifting push rod 205 is used to bring the negative pressure suction cup 202 close to the silicone workpiece 21 and insert the silicone workpiece 21 into the upper part of the carrier plate 14. The negative pressure suction cup 202 can pick up the silicone workpiece 21 at the feeding point and release the silicone workpiece 21 on the carrier plate 14. The negative pressure pump 203 is used to provide negative pressure to the negative pressure suction cup 202, and the control valve 201 is a solenoid valve, used to switch the suction state and release state of the negative pressure suction cup 202. In operation, the angle adjustment motor 206 adjusts the negative pressure suction cup 202 to face the external feeding position. The lifting push rod 205 makes the negative pressure suction cup 202 adhere to the top of the silicone workpiece 21. The negative pressure pump 203 provides negative pressure, allowing the negative pressure suction cup 202 to adsorb the silicone workpiece. Then, the angle adjustment motor 206 adjusts the negative pressure suction cup 202 to face the bearing plate 14. The lifting push rod 205 sends the silicone workpiece 21 onto the bearing plate 14. Then, the control valve 201 causes the negative pressure suction cup 202 to release the silicone workpiece 21. Finally, the loading robot 2 moves to the non-working position. This method effectively replaces manual loading, thus achieving fully automated grooving processing of the silicone workpiece 21.

[0031] Example 3: Please refer to Figure 1 , Figure 2 and Figure 4 Based on Embodiment 2, a collection box 6 for collecting processed silicone workpieces 21 is provided at the front end of the frame 1, and a blow pump 4 is fixedly installed on the frame 1. The output end of the blow pump 4 blows the silicone workpieces 21 located below the support plate 14 into the collection box 6 for collection through a blow pipe 5, and the blow pump 4 is electrically connected to the controller 3. The collection box 6 facilitates the collection of silicone workpieces 21, and the blow pipe 5 can blow the silicone workpieces 21 out from the folded support plate 14, avoiding the silicone workpieces 21 from being improperly discharged, thus improving the reliability of the equipment.

[0032] Although the illustrative specific embodiments of this application have been described above to enable those skilled in the art to understand this application, this application is not limited to the scope of the specific embodiments. For those skilled in the art, all applications utilizing the concept of this application are protected as long as various variations are within the spirit and scope of this application as defined and determined by the appended claims.

Claims

1. An automated cutting device for a cross-shaped groove in the inner hole of a silicone ring, comprising a frame (1), wherein a turntable (12) is driven by a main motor (7) on the frame (1), and a controller (3) is mounted on the frame (1), characterized in that: The frame (1) is equipped with a top cross blade (11) and a bottom cross blade (9) driven by a top cutting push rod (10) and a bottom cutting push rod (8), respectively. A gear (28) and a support plate (14) are rotatably mounted on the turntable (12), and the gear (28) and the support plate (14) are connected by a torsion spring (27). The support plate (14) is used to place a silicone workpiece (21) above it, and a clamping device for pressing the support plate (14) and the silicone workpiece (21) is hinged on the frame (1). The pressure plate (15) of the glue workpiece (21) has a mating pressure block (17) fixed on the bearing plate (14), and a limiting block (29) that fits against the mating pressure block (17) to limit the rotation position of the bearing plate (14) is fixed on the frame (1). The bottom of the turntable (12) is driven by an adjusting push rod (13) to have a sliding guide rod (19) and a pushing rack (26), and the pushing rack (26) meshes with a gear (28). The sliding guide rod (19) is used to push the pressure plate (15) to rotate. The bottom of the bearing plate (14) is provided with a bottom cross hole (20) for guiding the bottom cross blade (9) to cut the silicone workpiece (21), and the top of the pressure plate (15) is provided with a top cross hole (16) for guiding the top cross blade (11) to cut the silicone workpiece. The top cross hole (16) and the bottom cross hole (20) are concentric and deflected at a 45-degree angle to each other to form a star shape. The controller (3) is electrically connected to the main motor (7), the top cutting push rod (10), the bottom cutting push rod (8) and the adjusting push rod (13) respectively.

2. The automated cutting device for the herringbone groove in the inner hole of a silicone ring according to claim 1, characterized in that: The frame (1) is fixedly equipped with a loading robot (2) for transporting silicone workpieces (21) in an external conveyor belt or cylinder to a carrier plate (14). The loading robot (2) includes an angle adjustment motor (206) fixedly installed at the bottom of the frame (1), and a lifting push rod (205) is fixedly installed coaxially at the output end of the angle adjustment motor (206). A rotating arm (204) is fixedly installed at the output end of the lifting push rod (205), and a negative pressure pump (203) is fixedly installed on the rotating arm (204). A negative pressure suction cup (202) for adsorbing silicone workpieces (21) is fixedly installed at the end of the rotating arm (204), and the negative pressure suction cup (202) is connected to the negative pressure pump (203) through a control valve (201). The angle adjustment motor (206), the lifting push rod (205), the negative pressure pump (203) and the control valve (201) are all electrically connected to the controller (3).

3. The automated cutting device for the herringbone groove in the inner hole of a silicone ring according to claim 1, characterized in that: The front end of the frame (1) is provided with a collection box (6) for collecting the processed silicone workpieces (21), and a blow pump (4) is fixedly installed on the frame (1). The output end of the blow pump (4) blows the silicone workpieces (21) located below the carrier plate (14) into the collection box (6) for collection through the air jet pipe (5). The blow pump (4) is electrically connected to the controller (3).

4. The automated cutting device for the herringbone groove in the inner hole of a silicone ring according to claim 1, characterized in that: The sliding guide rod (19) is connected to a first slider (22) and a second slider (24) that slide along the sliding guide rod (19) by a return spring (23). The pressure plate (15) has a swing rod (25) fixed on its rotating shaft between the corresponding first slider (22) and second slider (24) to drive the pressure plate (15) to rotate. The first slider (22) and the second slider (24) are used to squeeze the swing rod (25) to rotate.

5. The automated cutting device for the herringbone groove in the inner hole of a silicone ring according to claim 1, characterized in that: The frame (1) is provided with an annular guide rail (30) concentric with the turntable (12), and the edge of the turntable (12) slides along the annular guide rail (30).

6. The automated cutting device for the herringbone groove in the inner hole of a silicone ring according to claim 1, characterized in that: A conductive slip ring is provided between the turntable (12) and the frame (1), and the controller (3) and the adjusting push rod (13) are electrically connected through the conductive slip ring. The adjusting push rod (13), the top cutting push rod (10) and the bottom cutting push rod (8) are all electric push rods, and the main motor (7) is a stepper motor.

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