A cotton cutting device

Abstract

The application relates to the technical field of sponge cutting, in particular to a cotton cutting device which comprises a rack, a casing, a conveying belt, a cutter belt and a cutter grinding assembly. The rack is arranged above the conveying belt, the casing is fixed at both ends of the rack, the cutter belt is rotatably arranged in the rack and the casing in a ring-shaped transmission path, the cutter grinding assembly comprises upper and lower grinding wheels, the upper and lower grinding wheels are arranged in the casing and are rotatably arranged, respectively, in frictional contact with the upper and lower surfaces of the cutter belt, and are arranged in front of and behind each other along the length direction of the cutter belt. The staggered arrangement makes the friction force points of the upper and lower grinding wheels on the cutter belt form a spacing, so that the periodic reverse force of the symmetrically arranged upper and lower grinding wheels is not directly superimposed at the same vertical position, the resonance condition of the cutter belt is reduced, the vibration amplitude of the cutter belt is weakened, the cutting position of the cutter belt is further reduced, the cutting precision is improved, the thickness of the cut sponge sheet is more uniform, and the edge is more flat.

Description

Technical Field

[0001] This application relates to the field of sponge cutting technology, and in particular to a cotton cutting device. Background Technology

[0002] In the field of sponge processing, after the sponge is foamed and molded, it needs to be cut into sponge sheets of a specific thickness by a cutting belt to meet the needs of subsequent winding and further processing. As the core component of the cutting operation, the sharpness of the cutting belt directly affects the cutting efficiency and the processing quality of the sponge sheets. During long-term continuous cutting operations, due to continuous contact and friction with the sponge, the cutting edge of the cutting belt is prone to wear and dulling. Once the cutting belt becomes dull, it will not only lead to increased cutting resistance and burrs or unevenness on the edges of the sponge sheets, but also reduce the cutting speed.

[0003] In related technologies, to solve the problem of tool belt passivation, two grinding wheels are symmetrically arranged on the upper and lower surfaces of the tool belt. The two grinding wheels rotate and rub against the upper and lower surfaces of the tool belt to achieve synchronous grinding. The friction points of the two grinding wheels are concentrated on the same vertical cross section of the tool belt.

[0004] However, since the two sets of grinding wheels are set opposite each other and act on the upper and lower surfaces of the blade belt, a periodic reverse force will be formed at the same vertical position of the blade belt during synchronous rotation grinding. This force creates a resonance condition in the direction of blade belt movement, which can easily cause the blade belt to vibrate. This resonance will not only aggravate the vibration amplitude of the blade belt, causing the blade belt to deviate in the cutting position, but also affect the cutting accuracy, making the cut sponge sheet prone to uneven thickness and reduced edge flatness, thus affecting subsequent processing and product quality. Utility Model Content

[0005] To address the aforementioned problems, this application provides a cotton cutting device.

[0006] The cotton cutting device provided in this application adopts the following technical solution: A cotton cutting device includes a frame, a housing, a conveyor belt, a blade belt, and a grinding assembly. The grinding assembly includes an upper grinding wheel and a lower grinding wheel. The frame is mounted above the conveyor belt. The housing is fixedly connected to both ends of the frame. The blade belt is configured as a circular transmission path. The upper end of the blade belt is rotatably supported within the frame, and the left and right ends of the blade belt are rotatably supported within the housing. The lower end of the blade belt is located on the conveyor belt. The upper and lower grinding wheels are built into the housing and rotatably supported within the housing. The upper grinding wheel rotates and rubs against the upper surface of the blade belt, and the lower grinding wheel rotates and rubs against the lower surface of the blade belt. The upper and lower grinding wheels are staggered in the longitudinal direction of the blade belt.

[0007] By adopting the above technical solution, the staggered arrangement of the upper and lower grinding wheels creates a gap in the friction points of the upper and lower grinding wheels on the cutting belt along the length of the cutting belt, rather than acting at the same vertical position on the upper and lower surfaces of the cutting belt. This breaks the direct superposition of the periodic reverse forces generated when the upper and lower grinding wheels are symmetrically set and rotate synchronously at the same position. This structural arrangement reduces the conditions for the periodic excitation of the reverse force to resonate with the natural frequency of the cutting belt, thereby significantly reducing the vibration amplitude of the cutting belt. The reduction in the vibration amplitude of the cutting belt directly reduces the offset of the cutting position of the cutting belt, improves the cutting accuracy, makes the thickness of the cut sponge sheet more uniform, and improves the edge flatness of the sponge sheet, thus ensuring the stability of subsequent processing and the quality of the product.

[0008] Preferably, the upper grinding wheel and the lower grinding wheel are inclined, the end of the upper grinding wheel near the lower grinding wheel rotates and rubs against the upper surface of the cutter belt, and the end of the lower grinding wheel near the upper grinding wheel rotates and rubs against the lower surface of the cutter belt.

[0009] By adopting the above technical solution, the inclined layout of the upper and lower grinding wheels creates a more reasonable pressure distribution at the contact points between the upper and lower grinding wheels and the cutting belt. This concentrates the grinding force on the key area near the cutting edge of the cutting belt, enhancing the grinding accuracy of the cutting edge. At the same time, the inclined angle causes the frictional forces of the upper and lower grinding wheels on the cutting belt to form a synergistic oblique force, rather than a vertically opposing force. This reduces local deformation of the cutting belt caused by force imbalance, avoids deviation or vibration of the cutting belt during grinding, and makes the grinding of the upper and lower surfaces of the cutting belt more uniform. This ensures that the flatness and sharpness of the cutting edge of the cutting belt remain consistent, thereby reducing cutting defects of sponge sheets caused by uneven cutting belt conditions during the cutting process and further improving the cutting quality of sponge sheets cut by the cutting belt.

[0010] Preferably, the grinding assembly further includes an upper support rod and a lower support rod, which are built into the housing. The upper support rod is disposed on the upper surface of the blade belt, and the lower support rod is disposed on the lower surface of the blade belt. The upper support rod and the lower support rod abut against the upper and lower surfaces of the blade belt. The upper support rod is disposed on the side of the upper grinding wheel closer to the frame, and the lower support rod is disposed on the side of the lower grinding wheel away from the frame.

[0011] By adopting the above technical solution, the upper support rod abuts against the upper surface of the blade belt and is located on the side of the upper grinding wheel closer to the machine frame. It can provide reverse support when the lower grinding wheel applies grinding force to the lower surface of the blade belt, thus counteracting the upward deformation tendency of the blade belt caused by the pressure of the lower grinding wheel. The lower support rod abuts against the lower surface of the blade belt and is located on the side of the lower grinding wheel away from the machine frame. It can form corresponding support when the upper grinding wheel grinds the upper surface of the blade belt, balancing the downward bending of the blade belt caused by the pressure of the upper grinding wheel. This further reduces the local depression or vibration of the blade belt caused by the grinding force of the grinding wheel, ensuring that the blade belt always maintains a flat running state. This makes the grinding action of the upper and lower grinding wheels on the blade belt more uniform and stable, further ensuring the accuracy of the blade belt cutting edge and further improving the cutting quality of the blade belt cutting sponge sheet.

[0012] Preferably, the grinding assembly further includes a first drive motor, which is built into the housing and slides vertically within the housing. There are two first drive motors, which are coaxially fixed with the upper grinding wheel and the lower grinding wheel.

[0013] By adopting the above technical solution, the vertical sliding of the first drive motor can adjust the contact pressure and relative position between the upper and lower grinding wheels and the blade belt. This can dynamically adapt to the grinding requirements according to the wear degree and thickness of the blade belt, reducing excessive pressure that could cause blade belt deformation or excessive wear of the grinding wheels. It can also ensure uniform pressure to guarantee the grinding effect. The two first drive motors independently drive their respective grinding wheels, and can individually adjust the speed and position according to the actual state of the upper and lower surfaces of the blade belt. This allows the grinding assembly to adapt more flexibly to different working conditions, continuously maintain the sharpness and flatness of the blade belt's cutting edge, and further improve the cutting quality of the blade belt cutting sponge sheets.

[0014] Preferably, it further includes a first adjustment component, which includes an adjustment seat, a support seat, a first handwheel, and a first threaded rod. The support seat is fixed to the inner wall of the housing. The first threaded rod is coaxially fixed with the first handwheel and threadedly engaged with the adjustment seat. The first drive motor is fixedly connected to the adjustment seat, and the adjustment seat is slidably disposed on the support seat.

[0015] By adopting the above technical solution, when the first handwheel is rotated, the first threaded rod, which is coaxially fixed to the first handwheel, rotates synchronously. Since the first threaded rod forms a threaded engagement with the adjusting seat, and the adjusting seat is limited by the support seat and cannot rotate with the first threaded rod, the rotational motion of the first threaded rod is converted into the vertical sliding motion of the adjusting seat along the support seat, thereby driving the first drive motor, which is fixedly connected to the adjusting seat, to move up and down. This structure achieves the vertical displacement of the first drive motor through threaded transmission, allowing the contact pressure and relative position of the upper and lower grinding wheels with the blade belt to be controlled, further improving the adaptability and grinding accuracy of the grinding assembly.

[0016] Preferably, it further includes a transmission assembly, which includes a drive wheel, gears, a toothed belt, and a second drive motor. The drive wheel is built into the housing and rotates within the housing. The second drive motor is fixed to the upper surface of the housing. There are two gears. The output shaft of the second drive motor is coaxially fixed with one of the gears, and the drive wheel is coaxially fixed with the other gear. The toothed belt meshes with the gears, and the blade belt is sleeved on the drive wheel.

[0017] By adopting the above technical solution, after the second drive motor starts, its output shaft drives a coaxially fixed gear to rotate. Power is then transmitted through a toothed belt to another gear coaxially fixed with the drive wheel, causing the drive wheel to rotate within the machine housing. Since the blade belt is fitted onto the drive wheel, the rotation of the drive wheel directly drives the blade belt to rotate synchronously along a circular path. Driven by the drive wheel, the blade belt continuously circulates along the circular transmission path. Meanwhile, the upper and lower grinding wheels, built into the machine housing, maintain rotational friction with the upper and lower surfaces of the blade belt, respectively. As the blade belt circulates, each cutting edge passes through the grinding areas of the upper and lower grinding wheels in sequence. Combined with the continuous rotation and stable pressure of the upper and lower grinding wheels, continuous cyclic grinding of the blade belt around its entire circumference is achieved. This cyclic grinding, combined with the staggered and tilted arrangement of the grinding wheels, ensures that all parts of the blade belt are evenly ground, reducing excessive wear or insufficient grinding in certain areas. Furthermore, it continuously repairs minor wear generated during the cutting process, ensuring that the blade belt maintains consistent sharpness and flatness.

[0018] Preferably, it also includes a pressure roller, the two ends of which are rotatably supported on the outer wall of the housing, the pressure roller is disposed between the frame and the conveyor belt, and the pressure roller is slidably disposed on the outer wall of the housing in a vertical direction.

[0019] By adopting the above technical solution, the pressure rollers rotate at both ends and are supported by the outer wall of the machine housing, located between the frame and the conveyor belt. Before the sponge pad is conveyed to the cutting area by the conveyor belt, the pressure rollers can first contact the upper surface of the sponge pad and apply pressure, pressing the sponge pad smoothly onto the conveyor belt. This reduces the problem of the sponge pad lifting and shifting due to conveying inertia, its own elasticity, or uneven thickness. At the same time, the vertical sliding setting of the pressure rollers can flexibly adjust the pressing height according to the thickness of the sponge pad, ensuring that appropriate pressure is formed on the surface of sponge pads of different thicknesses. This ensures that the sponge pad is always in a flat and fixed state when it enters the cutting area, reducing the problem of cutting size deviation and edge roughness caused by sponge pad displacement, and further improving the cutting quality.

[0020] Preferably, the device further includes a second adjusting assembly, which includes a connecting frame, a first bevel gear, a second bevel gear, a second handwheel, a second threaded rod, and an adjusting rod. Two first bevel gears are provided, and both ends of the adjusting rod are coaxially fixed to the first bevel gears. Two second bevel gears are provided, and the second bevel gears mesh with the first bevel gears. Bearing seats are provided at both ends of the pressure roller. The second bevel gear is coaxially fixed to the second threaded rod, and the first threaded rod is threadedly engaged with the bearing seats. The connecting frame is fixed to the outer wall of the machine housing, and the bearing seats are slidably disposed within the connecting frame. The second handwheel is coaxially fixed to the adjusting rod.

[0021] By adopting the above technical solution, when the second handwheel is rotated, the adjusting rod, which is coaxially fixed with the second handwheel, drives the first bevel gear, which is coaxially fixed at both ends, to rotate synchronously. The second bevel gear, which meshes with the first bevel gear, rotates accordingly, thereby driving the first threaded rod, which is coaxially fixed with the second bevel gear, to rotate. Since the first threaded rod forms a threaded fit with the bearing seats at both ends of the pressure roller, and the bearing seats are restricted by the connecting frame and cannot rotate with the first threaded rod, the rotational motion of the first threaded rod is converted into the vertical sliding of the bearing seats along the connecting frame, which ultimately drives the pressure roller to move up and down. This structure achieves synchronous adjustment of both ends of the pressure roller in the vertical direction through the transmission of the first and second bevel gears, ensuring the uniformity of pressing the sponge pad and flexibly adapting the pressing height of the pressure roller according to the sponge pads of different thicknesses.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By staggering the upper and lower grinding wheels along the length of the blade belt, the friction points of the upper and lower grinding wheels on the blade belt are spaced apart along the length. This prevents the periodic opposing forces during synchronous rotation from directly superimposing at the same position, thereby reducing resonance conditions, significantly weakening the blade belt vibration amplitude, reducing cutting position offset, improving cutting accuracy, and making the cut sponge sheets more uniform in thickness and with better edge flatness, effectively ensuring the stability of subsequent processing and product quality. 2. The inclined setting of the upper and lower grinding wheels concentrates the pressure of the contact points between the upper and lower grinding wheels and the blade belt on the key area of ​​the blade belt cutting edge, improving the grinding accuracy. At the same time, the inclined synergistic friction of the upper and lower grinding wheels replaces the vertical opposing force, reducing the deformation and vibration of the blade belt caused by force imbalance, ensuring uniform grinding of the upper and lower surfaces of the blade belt and consistent blade edge flatness and sharpness, thereby reducing sponge defects caused by uneven blade belt condition during cutting, and further improving cutting quality; 3. By setting an upper support rod on the side of the upper grinding wheel near the frame to abut against the upper surface of the blade belt, and setting a lower support rod on the side of the lower grinding wheel away from the frame to abut against the lower surface of the blade belt, the upward and downward deformation tendencies of the blade belt caused by the upper and lower grinding wheels during grinding can be counteracted respectively. This reduces local depressions or vibrations of the blade belt caused by stress, ensuring that the blade belt always maintains a flat running state. As a result, the grinding of the blade belt by the upper and lower grinding wheels is more uniform and stable, ensuring the cutting edge accuracy of the blade belt and further improving the quality of cutting sponge sheets. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application.

[0024] Figure 2 This is a structural schematic diagram of an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the casing structure.

[0026] Figure 4 yes Figure 3 An enlarged diagram of A in the diagram.

[0027] Figure 5 yes Figure 3 Enlarged diagram of B in the diagram.

[0028] Figure 6 This is a schematic diagram of the transmission assembly.

[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Housing; 3. Conveyor belt; 4. Blade belt; 5. Grinding assembly; 51. Upper grinding wheel; 52. Lower grinding wheel; 53. Upper support rod; 54. Lower support rod; 55. First drive motor; 6. Drive assembly; 61. Support frame; 62. Sliding column; 63. Sliding sleeve; 64. Controller; 7. First adjustment assembly; 71. Adjustment seat; 72. Support seat; 73. First handwheel; 74. First threaded rod; 8. Transmission assembly; 81. Drive wheel; 82. Gear; 83. Toothed belt; 84. Second drive motor; 9. Pressure roller; 10. Second adjustment assembly; 11. Connecting frame; 12. Bearing seat; 13. First bevel gear; 14. Second bevel gear; 15. Second handwheel; 16. Second threaded rod; 17. Adjustment rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0031] This application discloses a cotton-cutting device. (Refer to...) Figure 1A cotton cutting device includes a frame 1, a housing 2, a conveyor belt 3, a blade belt 4, and a sharpening assembly 5. The frame 1 is mounted above the conveyor belt 3, providing a stable support structure for the entire cutting operation. There are two housings 2 and two sets of sharpening assemblies 5. The two sets of sharpening assemblies 5 are respectively built into the two housings 2. The two housings 2 are fixedly connected to both ends of the frame 1. The upper end of the blade belt 4 is rotatably supported in the frame 1, and the left and right ends of the blade belt 4 are rotatably supported in the housings 2. The lower end of the blade belt 4 is located on the conveyor belt 3.

[0032] Reference Figure 2 Furthermore, the cotton cutting device is equipped with a drive assembly 6, which includes a support frame 61, a sliding column 62, a sliding sleeve 63, and a controller 64. There are two sliding sleeves 63, which are fixedly connected to two machine housings 2 respectively. The sliding column 62 is fixedly connected to the support frame 61. The controller 64 controls the sliding sleeves 63 to slide up and down along the sliding column 62, and further controls the machine housings 2 and the frame 1 to slide up and down. The controller 64 is located on the support frame 61.

[0033] This shows that when the thickness of the sponge gradually decreases during the cutting process, the controller 64 on the support frame 61 can drive the two sliding sleeves 63 fixed to the housing 2 to slide down synchronously along the sliding column 62, thereby driving the housing 2, the frame 1, and the blade belt 4 and the grinding assembly 5 built into the housing 2 to move down as a whole, so that the blade belt 4 always maintains a suitable cutting distance with the sponge surface.

[0034] Reference Figure 3 and Figure 4 Meanwhile, the blade belt 4 is rotatably supported inside the frame 1 and the housing 2. The blade belt 4 is set as a ring transmission path, which can continuously cut the sponge on the conveyor belt 3. The grinding assembly 5 includes an upper grinding wheel 51 and a lower grinding wheel 52. The upper grinding wheel 51 and the lower grinding wheel 52 are built into the housing 2 and rotatably supported. The upper grinding wheel 51 rotates and rubs against the upper surface of the blade belt 4, and the lower grinding wheel 52 rotates and rubs against the lower surface of the blade belt 4. The upper grinding wheel 51 and the lower grinding wheel 52 are staggered in the length direction of the blade belt 4, with the lower grinding wheel 52 located at the front end and the upper grinding wheel 51 located at the rear end.

[0035] This explains that, because the lower grinding wheel 52 is located at the front end and the upper grinding wheel 51 is located at the rear end, the frictional forces exerted by the upper grinding wheel 51 and the lower grinding wheel 52 on the cutter belt 4 are spaced apart along the length of the cutter belt 4, rather than acting at the same vertical position. This breaks the direct superposition of the periodic reverse forces generated when the upper grinding wheel 51 and the lower grinding wheel 52 are symmetrically arranged and rotate synchronously at the same position. This structural arrangement reduces the conditions for the periodic excitation of the reverse force to resonate with the natural frequency of the cutter belt 4, thereby significantly reducing the vibration amplitude of the cutter belt 4. The reduction in the vibration amplitude of the cutter belt 4 reduces the offset of the cutting position of the cutter belt 4, improves the cutting accuracy of the cutter belt 4, makes the thickness of the cut sponge sheet more uniform, and improves the edge flatness of the sponge sheet, thus ensuring the stability of subsequent processing and the quality of the product.

[0036] Correspondingly, the upper grinding wheel 51 and the lower grinding wheel 52 are arranged at an angle. The end of the upper grinding wheel 51 that is close to the lower grinding wheel 52 contacts and rubs against the upper surface of the tool belt 4, and the end of the lower grinding wheel 52 that is close to the upper grinding wheel 51 contacts and rubs against the lower surface of the tool belt 4.

[0037] Furthermore, the inclined arrangement of the upper grinding wheel 51 and the lower grinding wheel 52 creates a more reasonable pressure distribution at the contact points between the upper grinding wheel 51 and the lower grinding wheel 52 and the cutting belt 4. The grinding force is more concentrated in the key area of ​​the cutting edge of the cutting belt 4, thereby enhancing the grinding accuracy of the cutting edge of the cutting belt 4. At the same time, the inclination causes the friction force of the upper grinding wheel 51 and the lower grinding wheel 52 on the cutting belt 4 to form a synergistic oblique force, rather than a vertically opposite opposing force. This effectively reduces the local deformation of the cutting belt 4 caused by force imbalance, reduces the offset or vibration of the cutting belt 4 during grinding, and makes the grinding of the upper and lower surfaces of the cutting belt 4 more uniform. This ensures that the flatness and sharpness of the cutting edge remain consistent, thereby reducing the cutting defects of the sponge sheet caused by the uneven state of the cutting belt 4 during the cutting process, and ultimately improving the overall quality of the cutting belt 4 in cutting sponge sheets.

[0038] Meanwhile, the grinding assembly 5 also includes an upper support rod 53 and a lower support rod 54. The upper support rod 53 and the lower support rod 54 are built into the housing 2. The upper support rod 53 is set on the upper surface of the blade belt 4, and the lower support rod 54 is set on the lower surface of the blade belt 4. The upper support rod 53 and the lower support rod 54 abut against the upper and lower surfaces of the blade belt 4. The upper support rod 53 is set on the side of the upper grinding wheel 51 close to the frame 1, and the lower support rod 54 is set on the side of the lower grinding wheel 52 away from the frame 1.

[0039] Furthermore, the upper support rod 53 and the lower support rod 54 are made of cemented carbide, which has high hardness and wear resistance. The upper support rod 53 abuts against the upper surface of the blade belt 4 and is located on the side of the upper grinding wheel 51 closer to the frame 1. It can provide reverse support when the lower grinding wheel 52 applies grinding force to the lower surface of the blade belt 4, thus counteracting the upward deformation tendency of the blade belt 4 caused by the pressure of the lower grinding wheel 52. The lower support rod 54 abuts against the lower surface of the blade belt 4 and is located on the side of the lower grinding wheel 52 away from the frame 1. It can form corresponding support when the upper grinding wheel 51 grinds the upper surface of the blade belt 4, thus balancing the downward bending of the blade belt 4 caused by the pressure of the upper grinding wheel 51.

[0040] Furthermore, it reduces the local dents or vibrations caused by the grinding force of the blade belt 4, ensuring that the blade belt 4 always maintains a flat running state. This makes the grinding effect of the upper grinding wheel 51 and the lower grinding wheel 52 on the blade belt 4 more uniform and stable, further ensuring the accuracy of the blade edge of the blade belt 4 and further improving the cutting quality of the blade belt 4 when cutting the sponge sheet.

[0041] Meanwhile, the grinding assembly 5 also includes a first drive motor 55, which is built into the housing 2 and slides vertically within the housing 2. There are two first drive motors 55, which are coaxially fixed to the upper grinding wheel 51 and the lower grinding wheel 52, respectively.

[0042] Furthermore, the cotton cutting device also includes a first adjustment component 7, which includes an adjustment seat 71, a support seat 72, a first handwheel 73, and a first threaded rod 74. The support seat 72 is fixed to the inner wall of the housing 2. The first threaded rod 74 is coaxially fixed with the first handwheel 73. The first threaded rod 74 is threadedly engaged with the adjustment seat 71. The first drive motor 55 is fixedly connected to the adjustment seat 71. The adjustment seat 71 is slidably disposed on the support seat 72.

[0043] This explains that when the first handwheel 73 is rotated, the first threaded rod 74, which is coaxially fixed with the first handwheel 73, rotates synchronously. Since the first threaded rod 74 forms a threaded engagement with the adjusting seat 71, and the adjusting seat 71 is restricted by the support seat 72 and cannot rotate with the first threaded rod 74, the rotational motion of the first threaded rod 74 is converted into the vertical sliding motion of the adjusting seat 71 along the support seat 72, which in turn drives the first drive motor 55, which is fixedly connected to the adjusting seat 71, to move up and down. This structure realizes the vertical displacement of the position of the first drive motor 55 through threaded transmission, so that the contact pressure and relative position of the upper grinding wheel 51 and the lower grinding wheel 52 with the tool belt 4 can be controlled.

[0044] To further explain, the contact pressure and relative position of the upper grinding wheel 51 and the lower grinding wheel 52 with the blade belt 4 can be controlled. This allows for dynamic adaptation to grinding requirements based on the wear level and thickness of the blade belt 4, reducing excessive pressure that could lead to deformation of the blade belt 4 or excessive wear of the grinding wheels. It also ensures uniform pressure to guarantee the grinding effect. The two first drive motors 55 independently drive their respective grinding wheels, and their speed and position can be adjusted individually according to the actual state of the upper and lower surfaces of the blade belt 4. This allows the grinding assembly 5 to adapt more flexibly to different working conditions, continuously maintaining the sharpness and flatness of the blade edge of the blade belt 4, and further improving the cutting quality of the blade belt 4 when cutting the sponge sheet.

[0045] Furthermore, the blade belt 4 is made of high-strength alloy steel, with a sharp cutting edge and good wear resistance. The cotton cutting device also includes a transmission assembly 8, and the circular transmission path of the blade belt 4 is realized through the transmission assemblies 8 at both ends.

[0046] Reference Figure 6 Specifically, the transmission assembly 8 includes a drive wheel 81, a gear 82, a toothed belt 83, and a second drive motor 84. The drive wheel 81 is built into the housing 2 and rotates within the housing 2. The second drive motor 84 is fixed to the outer wall of the housing 2 and is located at the upper end of the housing 2. There are two gears 82 and two drive wheels 81. The output shaft of the second drive motor 84 is coaxially fixed with one of the gears 82, and one drive wheel 81 is coaxially fixed with the other gear 82. The other drive wheel 81 rotates within the inner wall of the housing 2. The blade belt 4 is sleeved on the two drive wheels 81. The second drive motor 84 drives the drive wheel 81 to rotate through the transmission of the gear 82 and the toothed belt 83, thereby causing the other drive wheel 81 to rotate and driving the circular transmission of the blade belt 4. The surface of the drive wheel 81 is chrome-plated to reduce friction with the blade belt 4 and improve the service life of the blade belt 4.

[0047] Reference Figure 5In addition, the cotton cutting device also includes a pressure roller 9. The two ends of the pressure roller 9 are rotatably supported on the outer wall of the machine housing 2. At the same time, the pressure roller 9 slides vertically on the outer wall of the machine housing 2. The pressure roller 9 is located between the frame 1 and the conveyor belt 3. The cotton cutting device also includes a second adjustment component 10. The second adjustment component 10 includes a connecting frame 11, a first bevel gear 13, a second bevel gear 14, a second handwheel 15, a second threaded rod 16, and an adjustment rod 17. There are two first bevel gears 13. The two ends of the adjustment rod 17 are coaxially fixed to the two first bevel gears 13 respectively. There are two second bevel gears 14. The second bevel gears 14 mesh with the first bevel gears 13. Each end of the pressure roller 9 is provided with a bearing seat 12. The second bevel gear 14 is coaxially fixed to the second threaded rod 16. The second threaded rod 16 is threadedly engaged with the bearing seat 12. The connecting frame 11 is fixed on the outer wall of the machine housing 2. The bearing seat 12 is slidably located inside the connecting frame 11. The second handwheel 15 is coaxially fixed to the adjustment rod 17.

[0048] This shows that the pressure roller 9 rotates at both ends and is supported by the outer wall of the housing 2 and is located between the frame 1 and the conveyor belt 3. Before the sponge pad is conveyed to the cutting area of ​​the blade belt 4 by the conveyor belt 3, the pressure roller 9 can first contact the upper surface of the sponge pad and apply pressure to press the sponge pad smoothly onto the conveyor belt 3, reducing the problems of lifting and deviation caused by conveying inertia and its own elasticity or uneven thickness.

[0049] Meanwhile, in order to adapt to the pressing needs of sponge pads of different thicknesses, when the second handwheel 15 is turned, the adjusting rod 17, which is coaxially fixed with the second handwheel 15, drives the first bevel gear 13, which is coaxially fixed at both ends, to rotate synchronously. The second bevel gear 14, which meshes with the first bevel gear 13, rotates accordingly, thereby driving the first threaded rod 74, which is coaxially fixed with the second bevel gear 14, to rotate. Since the first threaded rod 74 forms a threaded engagement with the bearing seats 12 at both ends of the pressure roller 9, and the bearing seats 12 are restricted by the connecting frame 11 and cannot rotate with the threaded rod, the rotational motion of the threaded rod is converted into the vertical sliding of the bearing seats 12 along the connecting frame 11, which ultimately drives the pressure roller 9 to move up and down.

[0050] Furthermore, through the meshing transmission of the first bevel gear 13 and the second bevel gear 14, the synchronous adjustment of both ends of the pressure roller 9 is realized, ensuring the uniformity of pressing the sponge pad. The pressing height can be flexibly adapted according to the thickness of the sponge pad, so that the sponge pad always remains flat and fixed when it enters the cutting area, reducing the cutting size deviation and edge roughness caused by displacement, and further improving the cutting quality.

[0051] The implementation principle of a cotton cutting device according to an embodiment of this application is as follows: The conveyor belt 3 starts and transports the sponge to be cut. During the transport process, the sponge first passes under the pressure roller 9 located at the front end of the cutter belt 4. At this time, the height of the pressure roller 9 can be adjusted by the second adjustment component 10. By rotating the second handwheel 15, the first bevel gear 13 is rotated through the adjustment rod 17. The second bevel gear 14, which meshes with the first bevel gear 13, drives the second threaded rod 16 to rotate. Since the second threaded rod 16 is threadedly engaged with the bearing seat 12, the bearing seat 12 slides vertically along the connecting frame 11, so that the pressure roller 9 can be adjusted according to the thickness of the sponge to press the sponge smoothly on the conveyor belt 3.

[0052] Subsequently, the sponge is conveyed to the cutting area of ​​the blade belt 4. The transmission component 8 drives the blade belt 4 to rotate in a cycle. The second drive motor 84 starts and drives the drive wheel 81 to rotate through the gear 82 and the toothed belt 83, so that the annular blade belt 4 rotates continuously along the path inside the frame 1 and the housing 2 to cut the sponge.

[0053] During the cutting process, if the sponge thickness gradually decreases, the controller 64 on the support frame will control the drive component 6 to move, and control the sliding sleeve 63 fixed to the housing 2 to slide down synchronously along the sliding column 62, driving the frame 1, the blade belt 4 and the grinding component 5 to move down as a whole, ensuring that the blade belt 4 always maintains a suitable cutting distance with the sponge surface.

[0054] Meanwhile, the grinding assembly 5 continuously grinds and maintains the blade belt 4. The two first drive motors 55 drive the upper grinding wheel 51 and the lower grinding wheel 52 to rotate respectively. The height of the first drive motor 55 can be adjusted by the first adjustment assembly 7, thereby controlling the contact pressure between the upper grinding wheel 51 and the lower grinding wheel 52 and the blade belt 4. The upper grinding wheel 51 and the lower grinding wheel 52 are staggered and tilted along the length of the blade belt 4. The friction points of the upper grinding wheel 51 and the lower grinding wheel 52 form a gap and generate a synergistic oblique force. With the support of the upper support rod 53 and the lower support rod 54, the vibration or deformation of the blade belt 4 is reduced, ensuring that the upper grinding wheel 51 and the lower grinding wheel 52 grind the upper and lower surfaces of the blade belt 4 evenly, and maintaining the sharpness and flatness of the blade edge of the blade belt 4.

[0055] Ultimately, with the synergistic effect of all components, the blade 4 stably cuts out sponge sheets of uniform thickness and with smooth edges, ensuring the quality of subsequent processing.

[0056] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cotton cutting device, characterized in that, The assembly includes a frame (1), a housing (2), a conveyor belt (3), a blade belt (4), and a grinding assembly (5). The grinding assembly (5) includes an upper grinding wheel (51) and a lower grinding wheel (52). The frame (1) is mounted above the conveyor belt (3). The housing (2) is fixedly connected to both ends of the frame (1). The blade belt (4) is configured as a circular transmission path. The upper end of the blade belt (4) is rotatably supported within the frame (1), and the left and right ends of the blade belt (4) are rotatably supported within the housing (2). The lower end of the blade belt (4) is located on the conveyor belt (3). The upper grinding wheel (51) and the lower grinding wheel (52) are built into the housing (2). The upper grinding wheel (51) and the lower grinding wheel (52) are rotatably supported in the housing (2). The upper grinding wheel (51) rotates and rubs against the upper surface of the blade belt (4). The lower grinding wheel (52) rotates and rubs against the lower surface of the blade belt (4). The upper grinding wheel (51) and the lower grinding wheel (52) are staggered along the length of the blade belt (4).

2. The cotton cutting device according to claim 1, characterized in that, The upper grinding wheel (51) and the lower grinding wheel (52) are inclined. The end of the upper grinding wheel (51) near the lower grinding wheel (52) rotates and rubs against the upper surface of the cutter belt (4). The end of the lower grinding wheel (52) near the upper grinding wheel (51) rotates and rubs against the lower surface of the cutter belt (4).

3. The cotton cutting device according to claim 2, characterized in that, The grinding assembly (5) further includes an upper support rod (53) and a lower support rod (54). The upper support rod (53) and the lower support rod (54) are built into the housing (2). The upper support rod (53) is disposed on the upper surface of the blade belt (4), and the lower support rod (54) is disposed on the lower surface of the blade belt (4). The upper support rod (53) and the lower support rod (54) abut against the upper surface and the lower surface of the blade belt (4). The upper support rod (53) is disposed on the side of the upper grinding wheel (51) close to the frame (1), and the lower support rod (54) is disposed on the side of the lower grinding wheel (52) away from the frame (1).

4. A cotton cutting device according to claim 2, characterized in that, The grinding assembly (5) further includes a first drive motor (55), which is built into the housing (2). The first drive motor (55) is slidably disposed in the housing (2) in the vertical direction. There are two first drive motors (55), and the two first drive motors (55) are coaxially fixed with the upper grinding wheel (51) and the lower grinding wheel (52).

5. A cotton cutting device according to claim 4, characterized in that, It also includes a first adjustment component (7), which includes an adjustment seat (71), a support seat (72), a first handwheel (73), and a first threaded rod (74). The support seat (72) is fixed to the inner wall of the housing (2). The first threaded rod (74) is coaxially fixed with the first handwheel (73). The first threaded rod (74) is threadedly engaged with the adjustment seat (71). The first drive motor (55) is fixedly connected to the adjustment seat (71). The adjustment seat (71) is slidably disposed on the support seat (72).

6. A cotton cutting device according to claim 5, characterized in that, It also includes a transmission assembly (8), which includes a drive wheel (81), a gear (82), a toothed belt (83), and a second drive motor (84). The drive wheel (81) is built into the housing (2) and rotates within the housing (2). The second drive motor (84) is fixed to the upper surface of the housing (2). There are two gears (82). The output shaft of the second drive motor (84) is coaxially fixed with one of the gears (82). The drive wheel (81) is coaxially fixed with the other gear (82). The toothed belt (83) meshes with the gear (82). The blade belt (4) is sleeved on the drive wheel (81).

7. A cotton cutting device according to claim 5, characterized in that, It also includes a pressure roller (9), the two ends of which are rotatably supported on the outer wall of the housing (2). The pressure roller (9) is disposed between the frame (1) and the conveyor belt (3). The pressure roller (9) is slidably disposed on the outer wall of the housing (2) in the vertical direction.

8. A cotton cutting device according to claim 7, characterized in that, It also includes a second adjustment component (10), which includes a connecting frame (11), a first bevel gear (13), a second bevel gear (14), a second handwheel (15), a second threaded rod (16), and an adjustment rod (17). There are two first bevel gears (13). The two ends of the adjustment rod (17) are coaxially fixed with the first bevel gears (13). There are two second bevel gears (14). The second bevel gears (14) mesh with the first bevel gears (13). Both ends of the pressure roller (9) are provided with bearing seats (12). The second bevel gears (14) are coaxially fixed with the second threaded rod (16). The first threaded rod (74) is threadedly engaged with the bearing seats (12). The connecting frame (11) is fixed on the outer wall of the housing (2). The bearing seats (12) are slidably disposed in the connecting frame (11). The second handwheel (15) is coaxially fixed with the adjustment rod (17).

Images