A circular cutting device for foam

Abstract

The present invention relates to the technical field of foam processing, and discloses a circular cutting device for foam, including a workbench. A support frame is arranged on the workbench. The inner part of the transverse plate of the support frame is of a hollow structure. A hydraulic press is arranged at the top of the support frame. The output end of the hydraulic press penetrates through the top of the support frame and extends into the interior of the support frame. The output end of the hydraulic press is fixedly connected with a first fixing frame. For this circular cutting device for foam, by moving the support block to the right, the sticky roller is close to the blade part of the circular knife, so that the support block can pick up the debris at the blade part of the circular knife, enabling the user to more conveniently use the device to clean the inner surface of the circular knife blade. At the same time, to a certain extent, it prevents the user's hand from touching the circular knife blade when manually cleaning the inner surface of the circular knife blade, avoiding the situation of the user's hand being injured and ensuring the personal safety of the user.

Description

Technical Field

[0001] The present invention relates to the technical field of foam processing, and specifically to a circular cutting device for foam. Background Art

[0002] Foam is a material obtained by foaming plastic particles, simply referred to as foam. Foam is divided into PU foam, anti-static foam, conductive foam, EPE, anti-static EPE, PORON, CR, EVA, cross-linked PE, SBR, EPDM, etc. Foam has characteristics such as elasticity, light weight, fast pressure-sensitive fixation, easy use, flexible bending, ultra-thin volume, and reliable performance. Thus, foam is widely used in the shock absorption and sealing of automobile fuel tanks and has a flame-retardant effect. The current foam cutting device consists of a workbench and a cutting mechanism. However, when some current foam cutting devices cut foam, since residues are generated after the foam is cut and the residues are light, the residues will adhere to the cutting tool. Then, when the cutting tool cuts the next batch of foam, due to the influence of the residues, the cutting edge of the foam cut by the cutting tool is prone to unevenness, thus affecting the production quality of the finished product. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present invention provides a circular cutting device for foam, which has advantages such as being able to more conveniently clean the residues on the inner surface of the annular cutting edge, and solves the problem that residues will adhere to the cutting tool.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solution: A circular cutting device for foam, including a workbench, a support frame is arranged on the workbench. The inner part of the horizontal plate of the support frame is a hollow structure. A hydraulic press is arranged on the top of the support frame. The output end of the hydraulic press penetrates through the top of the support frame and extends to the inside of the support frame. The output end of the hydraulic press is fixedly connected with a first fixing frame. The bottom of the first fixing frame is fixedly connected with a fixing plate. A rotating ring is embedded in the fixing plate. Teeth are arranged on the outer surface of the rotating ring. A second rotating groove is formed on the inner surface of the rotating ring. An annular knife is arranged inside the rotating ring. A power groove communicating with the inside of the second rotating groove is formed inside the rotating ring. A first rotating groove is formed inside the fixing plate. A transmission device is arranged inside the first rotating groove. A second fixing frame is fixedly connected inside the support frame. The vertical rod of the second fixing frame is located inside the annular knife. The inner part of the second fixing frame is a hollow structure. A transmission frame is slidably connected inside the horizontal rod of the second fixing frame. The bottom of the transmission frame penetrates through the inside of the horizontal rod of the second fixing frame and extends to the outside of the horizontal rod of the second fixing frame. A cleaning device is arranged inside the second fixing frame.

[0007] Preferably, two fixing blocks which are slidably connected to the inside of the second rotating groove are fixedly connected to the outer surface of the annular knife, and the fixing blocks are triangular prisms.

[0008] Preferably, a blocking rod is slidably connected to the inside of the power groove, a spring is fixedly connected to the rear side of the blocking rod, and the rear end of the spring is fixedly connected to the inner wall of the power groove.

[0009] Preferably, the cleaning device includes a second tension spring, the bottom end of the second tension spring is fixedly connected to the inner wall of the horizontal rod of the second fixing frame, the top end of the second tension spring is fixedly connected to the surface of the transmission frame, a power frame which is slidably connected to the inside of the vertical rod of the second fixing frame is fixedly connected to the left side of the transmission frame, and a moving groove is formed in the right side of the vertical rod of the second fixing frame.

[0010] Preferably, a support block is slidably connected to the inside of the moving groove, and a sticky roller is arranged on the right side of the support block.

[0011] Preferably, a transmission groove which is slidably connected to the surface of the power frame is formed in the left side of the support block, the vertical section of the transmission groove is a combined shape of a right trapezoid and a rectangle, two mirror-image first tension springs are fixedly connected to the rear side of the support block, and the left ends of the first tension springs are fixedly connected to the inner wall of the vertical rod of the second fixing frame.

[0012] Preferably, the transmission device includes a gear, the bottom of the gear is rotatably connected to the inner wall of the first rotating groove, a first transmission rod is fixedly connected to the top of the gear, the top of the first transmission rod penetrates through the inside of the first rotating groove and the fixing plate and extends to the outside of the fixing plate, the surface of the first transmission rod is rotatably connected to the inside of the fixing plate, a second transmission rod is slidably connected to the surface of the first transmission rod, the inside of the second transmission rod is a hollow structure, the top of the second transmission rod penetrates through the bottom of the transverse plate of the support frame and extends to the inside of the transverse plate of the support frame, the surface of the second transmission rod is rotatably connected to the inside of the transverse plate of the support frame, a first bevel gear is fixedly connected to the top of the second transmission rod, a rotating rod is rotatably connected to the inside of the transverse plate of the support frame, and a second bevel gear is fixedly connected to the rear end of the rotating rod.

[0013] Preferably, the surfaces of the gear and the rotating ring are meshed with each other through teeth, and the surfaces of the second bevel gear and the first bevel gear are meshed with each other.

[0014] Preferably, the front end of the rotating rod penetrates through the inside of the transverse plate of the support frame and extends to the outside of the transverse plate of the support frame, a rotating disc is fixedly connected to the front end of the rotating rod, a fixing groove is formed in the front side of the transverse plate of the support frame, a sliding groove is formed in the front side of the handle, and a handle which is slidably connected to the inside of the fixing groove is arranged in the sliding groove.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present invention provides a circular cutting device for foam, which has the following beneficial effects:

[0017] 1. In this circular cutting device for foam, the support block moves to the right, making the sticky roller close to the blade part of the circular knife. The support block can pick up the debris on the blade part of the circular knife, thereby cleaning the blade part of the circular knife. This enables the user to more conveniently clean the inner surface of the circular knife blade using the device, allowing the circular knife blade to cut the foam more smoothly. At the same time, to a certain extent, it prevents the user's hand from touching the circular knife blade when manually cleaning the inner surface of the circular knife blade, avoiding the situation of the user's hand being injured and ensuring the user's personal safety.

[0018] 2. In this circular cutting device for foam, the vertical cross-section of the transmission groove is a combination of a right trapezoid and a rectangle. Through the inclined surface of the transmission groove, when the first bevel gear moves upward inside the transmission groove, it can push the support block to move to the right inside the moving groove. At the same time, due to the limitation of the moving groove, when the support block moves left and right, it is not easy to deviate and get stuck, enabling the support block to move left and right inside the moving groove more smoothly.

[0019] 3. In this circular cutting device for foam, the circular knife can rotate while fitting the surface of the sticky roller, and the sticky roller rotates in front of the support block, thereby achieving a comprehensive cleaning of the inner surface blade part of the circular knife. This enables the user to more conveniently clean the inner surface of the circular knife after cutting. At the same time, to a certain extent, it reduces the situation that the foam debris on the inner surface of the circular knife is not thoroughly cleaned, preventing the edge of the foam cut by the circular knife from being uneven when the circular knife cuts the foam again, which would otherwise reduce the cutting quality of the foam. Furthermore, it makes the fit between the foam and the car fuel tank closer, making the use of the car fuel tank safer and more stable.

[0020] 4. In this circular cutting device for foam, by moving the stop rod backward, the fixation of the circular knife is released, making the installation and disassembly of the circular knife more convenient. When the circular knife is damaged, the user can more conveniently disassemble and replace the circular knife, enabling the user to use the device more conveniently. At the same time, when the circular knife fails, the replacement speed of the circular knife is accelerated, reducing the impact of replacing the circular knife on the foam processing process.

[0021] 5. The circular cutting device of the foam. Since the fixed block is triangular prism-shaped, when the fixed block moves inside the second rotation groove, it can push the longitudinal rod of the stop rod backward, so that the fixed block can move more smoothly inside the rotation groove. At the same time, the friction between the fixed block and the longitudinal rod of the stop rod is reduced to a certain extent, so that the fixed block can push the stop rod to move more smoothly. At the same time, the situation where the fixed block and the stop rod are stuck is reduced to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a circular cutting device for a foam of the present invention;

[0023] Figure 2 For the present invention Figure 1 is an enlarged structural diagram of A in;

[0024] Figure 3 is a schematic structural diagram of the fixing plate of the present invention;

[0025] Figure 4 is a schematic cross-sectional view of the fixing plate of the present invention;

[0026] Figure 5 is a schematic structural diagram of the stop rod of the present invention;

[0027] Figure 6 is a schematic cross-sectional view of the second fixing frame of the present invention;

[0028] Figure 7 For the present invention Figure 6 is an enlarged structural diagram of B in;

[0029] Figure 8 is a schematic cross-sectional view of the support block of the present invention;

[0030] Figure 9 is a schematic cross-sectional view of the second transmission rod of the present invention.

[0031] In the figure: 1 workbench, 2 support frame, 3 rotating disk, 4 hydraulic press, 5 handle, 6 rotating rod, 7 fixing plate, 8 fixing groove, 9 circular knife, 10 rotating ring, 11 first transmission rod, 12 first rotation groove, 13 fixed block, 14 power groove, 15 second rotation groove, 16 stop rod, 17 first fixing frame, 18 second fixing frame, 19 second transmission rod, 20 first bevel gear, 21 sliding groove, 22 spring, 23 first tension spring, 24 transmission groove, 25 support block, 26 adhesive roller, 27 moving groove, 28 transmission frame, 29 second tension spring, 30 power frame, 31 second bevel gear, 32 gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-9 , the present invention provides a technical solution: a circular cutting device for foam, including a workbench 1. A support frame 2 is arranged on the workbench 1. The support frame 2 is in a vertical C shape. The inside of the horizontal plate of the support frame 2 is a hollow structure. A hydraulic press 4 is arranged at the top of the support frame 2. The hydraulic press 4 is a conventional structure and will not be described in detail here. The output end of the hydraulic press 4 penetrates through the top of the support frame 2 and extends into the inside of the support frame 2. The output end of the hydraulic press 4 is fixedly connected with a first fixing frame 17. The bottom of the first fixing frame 17 is fixedly connected with a fixing plate 7. The fixing plate 7 is located inside the support frame 2. A rotating ring 10 is embedded in the inside of the fixing plate 7. Teeth are arranged on the outer surface of the rotating ring 10. The rotating ring 10 can rotate inside the fixing plate 7, and at the same time, the rotating ring 10 will not slide out of the inside of the fixing plate 7. The first fixing frame 17 is located on the straight line where the diameter of the rotating ring 10 is located. A second rotating groove 15 is opened on the inner surface of the rotating ring 10. The second rotating groove 15 is L-shaped, and the horizontal groove of the second rotating groove 15 is arc-shaped. An annular knife 9 is arranged inside the rotating ring 10. Two fixing blocks 13 that are slidably connected to the inside of the second rotating groove 15 are fixedly connected to the outer surface of the annular knife 9. The fixing blocks 13 are in the shape of a triangular prism. A power groove 14 communicating with the inside of the second rotating groove 15 is opened inside the rotating ring 10. The power groove 14 is also L-shaped. A blocking rod 16 is slidably connected to the inside of the power groove 14. A spring 22 is fixedly connected to the rear side of the blocking rod 16. The rear end of the spring 22 is fixedly connected to the inner wall of the power groove 14. The spring 22 can be reset and compressed by the forward and backward movement of the blocking rod 16. A first rotating groove 12 is opened inside the fixing plate 7. A transmission device is arranged inside the first rotating groove 12. A second fixing frame 18 is fixedly connected to the inside of the support frame 2. The second fixing frame 18 is located on the right side of the first fixing frame 17 and does not contact the first fixing frame 17. The vertical rod of the second fixing frame 18 is located inside the annular knife 9. The inside of the second fixing frame 18 is a hollow structure. A transmission frame 28 is slidably connected to the inside of the horizontal rod of the second fixing frame 18. The bottom of the transmission frame 28 penetrates through the inside of the horizontal rod of the second fixing frame 18 and extends to the outside of the horizontal rod of the second fixing frame 18. A cleaning device is arranged inside the second fixing frame 18;

[0034] Slide the fixing block 13 into the inner part of the vertical slot of the second rotating slot 15. At the same time, slide the annular knife 9 into the inner part of the rotating ring 10. Rotate the annular knife 9 clockwise, so that the fixing block 13 rotates inside the arc-shaped slot of the second rotating slot 15. At the same time, since the fixing block 13 is in the shape of a triangular prism, when the fixing block 13 moves inside the second rotating slot 15, it can push the longitudinal rod of the stop lever 16 backward, and the spring 22 is compressed. When the fixing block 13 moves to the right side of the longitudinal rod of the stop lever 16, the spring 22 resets and makes the stop lever 16 move forward, so that the longitudinal rod of the stop lever 16 blocks the fixing block 13, making the fixing block 13 unable to move inside the second rotating slot 15, thus realizing the position fixation of the annular knife 9. Move the stop lever 16 backward, thus realizing the release of the fixation of the annular knife 9, making the installation and disassembly of the annular knife 9 more convenient. When the annular knife 9 is damaged, the user can disassemble and replace the annular knife 9 more conveniently, so that the user can use the device more conveniently. At the same time, when the annular knife 9 fails, the replacement speed of the annular knife 9 is accelerated, thus reducing the influence of replacing the annular knife 9 on the foam processing process. Place the foam on the workbench 1, and start the hydraulic press 4 through the external control device, so that the hydraulic press 4 drives the fixed plate 7 to move downward, thus realizing the cutting of the foam by the annular knife 9;

[0035] The cleaning device includes a second tension spring 29. The bottom end of the second tension spring 29 is fixedly connected to the inner wall of the transverse rod of the second fixing frame 18, and the top end of the second tension spring 29 is fixedly connected to the surface of the transmission frame 28. Through the up and down movement of the transmission frame 28, the second tension spring 29 can be stretched and reset. The left side of the transmission frame 28 is fixedly connected with a power frame 30 that is slidably connected to the inside of the vertical rod of the second fixing frame 18. A moving slot 27 is opened on the right side of the vertical rod of the second fixing frame 18. A support block 25 is slidably connected to the inside of the moving slot 27. A sticky roller 26 is arranged on the right side of the support block 25. The sticky roller 26 can rotate on the right side of the support block 25. At the same time, an adhesive layer is arranged on the sticky roller 26, so that the sticky roller 26 can pick up the foam debris. A transmission slot 24 that is slidably connected to the surface of the power frame 30 is opened on the left side of the support block 25. The vertical cross-section of the transmission slot 24 is a combination of a right-angled trapezoid and a rectangle. Two mirror-image first tension springs 23 are fixedly connected to the rear side of the support block 25. The left ends of the first tension springs 23 are fixedly connected to the inner wall of the vertical rod of the second fixing frame 18. The transmission slot 24 is located between the two first tension springs 23 and does not contact the first tension springs 23;

[0036] When the circular knife 9 finishes cutting the foam and resets and moves upward to the initial position, the fixed plate 7 pushes the transmission frame 28 upward to the limit position. At the same time, the transmission frame 28 drives the power frame 30 to move upward inside the second fixed frame 18. Meanwhile, when the power frame 30 moves upward inside the second fixed frame 18, it also moves upward inside the transmission groove 24. Since the vertical cross-section of the transmission groove 24 is a combination of a right trapezoid and a rectangle, the first bevel gear 20 can be pushed to move upward inside the transmission groove 24 through the inclined surface of the transmission groove 24, which can push the support block 25 to move rightward inside the moving groove 27. At the same time, due to the limitation of the moving groove 27, when the support block 25 moves left and right, it is not easy to deviate and get stuck. Thus, the support block 25 can move more smoothly left and right inside the moving groove 27. At the same time, as the support block 25 moves rightward, the adhesive roller 26 is close to the blade part of the circular knife 9, enabling the support block 25 to stick the debris on the blade part of the circular knife 9, thereby realizing the cleaning of the blade part of the circular knife 9;

[0037] The transmission device includes a gear 32. The bottom of the gear 32 is rotatably connected to the inner wall of the first rotating groove 12. The gear 32 meshes with the surface of the rotating ring 10 through teeth. The top of the gear 32 is fixedly connected to a first transmission rod 11. The surface of the first transmission rod 11 is provided with bumps. The top of the first transmission rod 11 penetrates through the first rotating groove 12 and extends to the outside of the fixed plate 7 inside the fixed plate 7. The surface of the first transmission rod 11 is rotatably connected to the inside of the fixed plate 7. A second transmission rod 19 is slidably connected to the surface of the first transmission rod 11. The inside of the second transmission rod 19 is a hollow structure. Through the cooperation between the bumps on the surface of the first transmission rod 11 and the inside of the second transmission rod 19, the moving direction of the first rotating rod 11 is restricted, so that the first rotating rod 11 can only move up and down inside the second rotating rod 19. Thus, while the first transmission rod 11 can move up and down inside the second transmission rod 19, the second transmission rod 19 can drive the first transmission rod 11 to rotate. The top of the second transmission rod 19 penetrates through the bottom of the transverse plate of the support frame 2 and extends to the inside of the transverse plate of the support frame 2. The surface of the second transmission rod 19 is rotatably connected to the inside of the transverse plate of the support frame 2. The top of the second transmission rod 19 is fixedly connected to a first bevel gear 20. A rotating rod 6 is rotatably connected to the inside of the transverse plate of the support frame 2. The rear end of the rotating rod 6 is fixedly connected to a second bevel gear 31. The surface of the second bevel gear 31 meshes with the surface of the first bevel gear 20. The front end of the rotating rod 6 penetrates through the inside of the transverse plate of the support frame 2 and extends to the outside of the transverse plate of the support frame 2. The front end of the rotating rod 6 is fixedly connected to a rotating disk 3. A fixing groove 8 is opened on the front side of the transverse plate of the support frame 2. A sliding groove 21 is opened on the front side of the handle 5. The sliding groove 21 is located away from the center of the rotating disk 3. A handle 5 that is slidably connected to the inside of the fixing groove 8 is arranged inside the sliding groove 21;

[0038] After the annular cutter 9 finishes cutting the foam, when the annular cutter 9 resets and moves upward to the initial position, the handle 5 is moved forward and slides out of the inside of the fixing groove 8, and the handle 5 is rotated. Since the sliding groove 21 is located away from the center of the rotating disk 3, the handle 5 can drive the rotating disk 3 to rotate, so that the rotating rod 6 drives the second bevel gear 31 to rotate. The second bevel gear 31 drives the first bevel gear 20 to rotate through meshing. Then, the second transmission rod 19 drives the first transmission rod 11 and the gear 32 to rotate. The gear 32 drives the rotating ring 10 to rotate through meshing. Then, the rotation of the annular cutter 9 is realized, and the annular cutter 9 can rotate along the surface of the sticky roller 26. At the same time, the sticky roller 26 rotates on the front side of the support block 25. Then, the full cleaning of the inner surface cutting edge part of the annular cutter 9 is realized, enabling the user to more conveniently clean the inner surface of the annular cutter 9 after cutting. At the same time, to a certain extent, it reduces the situation that the foam scraps on the inner surface of the annular cutter 9 are not thoroughly cleaned. Then, when the annular cutter 9 cuts the foam again, the edge of the foam cutting is uneven, resulting in a decrease in the foam cutting quality. Then, the foam fits more tightly with the car fuel tank, making the use of the car fuel tank safer and more stable. After the cleaning is completed, the handle 5 slides into the inside of the fixing groove 8, fixing the positions of the rotating disk 3 and the rotating rod 6. Then, the second transmission rod 19 drives the first transmission rod 11 to be fixed, and then the position of the rotating ring 10 is fixed.

[0039] Working principle: When the circular cutting device for the foam is in use;

[0040] First step: Slide the fixing block 13 into the vertical groove of the second rotating groove 15, and at the same time, slide the annular cutter 9 into the inside of the rotating ring 10. Rotate the annular cutter 9 clockwise. Then, the fixing block 13 rotates in the arc-shaped groove of the second rotating groove 15. At the same time, since the fixing block 13 is triangular prism-shaped, when the fixing block 13 moves inside the second rotating groove 15, it can push the longitudinal rod of the stop lever 16 backward, and the spring 22 is compressed. When the fixing block 13 moves to the right side of the longitudinal rod of the stop lever 16, the spring 22 resets and the stop lever 16 moves forward. Then, the longitudinal rod of the stop lever 16 blocks the fixing block 13, making the fixing block 13 unable to move inside the second rotating groove 15. Then, the position of the annular cutter 9 is fixed. Move the stop lever 16 backward, and then the fixing of the annular cutter 9 is released;

[0041] Second step: Start the hydraulic press 4 through an external control device, and the hydraulic press 4 drives the fixed plate 7 to move downward, and then the annular cutter 9 cuts the foam;

[0042] Step 3: When the circular knife 9 finishes cutting the foam, when the circular knife 9 resets and moves upward to the initial position, the fixed plate 7 pushes the transmission frame 28 upward to the limit position. At the same time, the transmission frame 28 drives the power frame 30 to move upward inside the second fixed frame 18. Meanwhile, when the power frame 30 moves upward inside the second fixed frame 18, it also moves upward inside the transmission slot 24. Since the vertical cross-section of the transmission slot 24 is a combination of a right trapezoid and a rectangle, the upward movement of the first bevel gear 20 inside the transmission slot 24 through the inclined surface of the transmission slot 24 can push the support block 25 to move rightward inside the moving slot 27. The support block 25 moves rightward, making the adhesive roller 26 close to the blade part of the circular knife 9, so that the support block 25 can pick up the debris on the blade part of the circular knife 9.

[0043] Step 4: When the circular knife 9 finishes cutting the foam and resets and moves upward to the initial position, move the handle 5 forward and slide it out of the inside of the fixed slot 8, and rotate the handle 5. Since the sliding slot 21 is located away from the center of the support frame 2, the handle 5 can drive the rotating disk 3 to rotate, and the rotating rod 6 drives the second bevel gear 31 to rotate. The second bevel gear 31 drives the first bevel gear 20 to rotate through meshing. Then, the second transmission rod 19 drives the first transmission rod 11 and the gear 32 to rotate. The gear 32 drives the rotating ring 10 to rotate through meshing, thereby realizing the rotation of the circular knife 9, enabling the circular knife 9 to rotate along the surface of the adhesive roller 26. Meanwhile, the adhesive roller 26 rotates in front of the support block 25, thereby realizing the comprehensive cleaning of the inner surface blade part of the circular knife 9.

[0044] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circular cutting device for foam, comprising a workbench (1), characterized in that: A support frame (2) is provided on the workbench (1). The interior of the horizontal plate of the support frame (2) is a hollow structure. A hydraulic press (4) is provided at the top of the support frame (2). The output end of the hydraulic press (4) penetrates through the top of the support frame (2) and extends into the interior of the support frame (2). A first fixing frame (17) is fixedly connected to the output end of the hydraulic press (4). A fixing plate (7) is fixedly connected to the bottom of the first fixing frame (17). A rotating ring (10) is embedded in the interior of the fixing plate (7). Teeth are provided on the outer surface of the rotating ring (10). A second rotating groove (15) is formed on the inner surface of the rotating ring (10). An annular knife (9) is provided inside the rotating ring (10). A power groove (14) communicating with the interior of the second rotating groove (15) is formed inside the rotating ring (10). A first rotating groove (12) is formed inside the fixing plate (7). A transmission device is provided inside the first rotating groove (12). A second fixing frame (18) is fixedly connected inside the support frame (2). The vertical rod of the second fixing frame (18) is located inside the annular knife (9). The interior of the second fixing frame (18) is a hollow structure. A transmission frame (28) is slidably connected inside the horizontal rod of the second fixing frame (18). The bottom of the transmission frame (28) penetrates through the interior of the horizontal rod of the second fixing frame (18) and extends to the outside of the horizontal rod of the second fixing frame (18). A cleaning device is provided inside the second fixing frame (18). Two fixing blocks (13) slidably connected to the interior of the second rotating groove (15) are fixedly connected to the outer surface of the annular knife (9). The fixing blocks (13) are triangular prisms. The cleaning device includes a second tension spring (29). The bottom end of the second tension spring (29) is fixedly connected to the inner wall of the horizontal rod of the second fixing frame (18). The top end of the second tension spring (29) is fixedly connected to the surface of the transmission frame (28). A power frame (30) slidably connected to the interior of the vertical rod of the second fixing frame (18) is fixedly connected to the left side of the transmission frame (28). A moving groove (27) is formed on the right side of the vertical rod of the second fixing frame (18). A support block (25) is slidably connected to the interior of the moving groove (27). A sticky roller (26) is provided on the right side of the support block (25). A transmission groove (24) slidably connected to the surface of the power frame (30) is formed on the left side of the support block (25). The vertical cross-section of the transmission groove (24) is a combination of a right trapezoid and a rectangle. Two mirror-image first tension springs (23) are fixedly connected to the rear side of the support block (25). The left end of the first tension spring (23) is fixedly connected to the inner wall of the vertical rod of the second fixing frame (18).

2. A circular cutting device for a foam according to claim 1, characterized in that: A stop rod (16) is slidably connected to the interior of the power groove (14). A spring (22) is fixedly connected to the rear side of the stop rod (16). The rear end of the spring (22) is fixedly connected to the inner wall of the power groove (14).

3. A circular cutting device for a foam according to claim 1, characterized in that: The transmission device includes a gear (32). The bottom of the gear (32) is rotatably connected to the inner wall of the first rotating groove (12). A first transmission rod (11) is fixedly connected to the top of the gear (32). The top of the first transmission rod (11) penetrates through the first rotating groove (12) and into the interior of the fixing plate (7) and extends to the outside of the fixing plate (7). The surface of the first transmission rod (11) is rotatably connected to the interior of the fixing plate (7). A second transmission rod (19) is slidably connected to the surface of the first transmission rod (11). The interior of the second transmission rod (19) is a hollow structure. The top of the second transmission rod (19) penetrates through the bottom of the transverse plate of the support frame (2) and extends into the interior of the transverse plate of the support frame (2). The surface of the second transmission rod (19) is rotatably connected to the interior of the transverse plate of the support frame (2). A first bevel gear (20) is fixedly connected to the top of the second transmission rod (19). A rotating rod (6) is rotatably connected to the interior of the transverse plate of the support frame (2). A second bevel gear (31) is fixedly connected to the rear end of the rotating rod (6).

4. The circular cutting device for a foam according to claim 3, characterized in that: The gear (32) is meshed with the surface of the rotating ring (10) through teeth. The surface of the second bevel gear (31) is meshed with the surface of the first bevel gear (20).

5. A circular cutting device for a foam, according to claim 3, characterized in that: The front end of the rotating rod (6) penetrates through the interior of the transverse plate of the support frame (2) and extends to the outside of the transverse plate of the support frame (2). A rotating disk (3) is fixedly connected to the front end of the rotating rod (6). A fixing groove (8) is formed in the front side of the transverse plate of the support frame (2). A sliding groove (21) is formed in the front side of the handle (5). The handle (5) disposed in the interior of the sliding groove (21) is slidably connected to the interior of the fixing groove (8).

Images