Cutting mechanism for can making processing production

Abstract

The utility model belongs to the technical field of can making cutting mechanisms, and discloses a cutting mechanism for can making processing production, which comprises a cutting platform and a mounting frame fixed at the top of the cutting platform, a cutting groove is formed in the top of the cutting platform, and an electric hydraulic push rod is fixed at the top of the mounting frame. A knife rest located between a frame body at the top of the mounting frame and the cutting platform is fixed to the push rod end of the electric hydraulic push rod, a cutting knife located above the cutting groove is fixed to the bottom of the knife rest, and a main limiting roller matched with the top of the cutting platform and abutting against the tinplate roll is rotationally mounted between the frame bodies on the two sides of the mounting frame; the axis of the main limiting roller, the length direction of the cutting groove and the length direction of the cutting knife are parallel to one another, and a driving assembly used for driving the main limiting roller to rotate when the knife rest ascends is arranged on the mounting frame. According to the iron sheet cutting device, the driving assembly is arranged, after each section of iron sheet is cut, the tedious operation of manually pushing a follow-up to-be-cut iron roll forwards is omitted, and the cutting efficiency of the iron sheet is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of can-making and cutting mechanisms, and in particular to a cutting mechanism for can-making and processing. Background Technology

[0002] Tinplate printing refers to printing various patterns on tinplate and then shaping the tinplate into cans of various shapes, such as milk powder cans, for product packaging. Before printing on the tinplate, the entire roll of tinplate needs to be cut into pieces using a cutting device.

[0003] Chinese utility model patent CN219746459U discloses a cutting device for can printing production, including a cutting table. One end of the cutting table is provided with a feeding groove, and the feeding groove is provided with symmetrically arranged guide grooves. A support is provided in the middle of the cutting table, and two suction cup grooves are symmetrically arranged on the guide groove panel at the lower end of the support. The lower end of the suction cup groove is provided with a negative pressure channel penetrating the cutting table. A cutting fixing mechanism is provided on the cutting table. The cutting fixing mechanism includes a hydraulic cylinder that is detachably installed on the support. The piston rod of the hydraulic cylinder passes through the support and is connected to a cutting blade.

[0004] When processing cans using tinplate coils, the tinplate coils need to be cut into multiple tinplate sheets of equal length for easier processing. However, after each sheet is cut, the next tinplate to be cut needs to be manually pushed forward to continue the cutting work. This operation is cumbersome and does not improve the cutting efficiency of the tinplate sheets. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a cutting mechanism for can manufacturing.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cutting mechanism for can manufacturing, comprising a cutting platform and a mounting frame fixed to the top of the cutting platform. The top of the cutting platform is provided with a cutting groove. An electric hydraulic push rod is fixed to the top of the mounting frame. A knife holder is fixed at the end of the push rod of the electric hydraulic push rod between the frame body at the top of the mounting frame and the cutting platform. A cutting knife is fixed at the bottom of the knife holder above the cutting groove. A main limiting roller that cooperates with the top of the cutting platform and abuts against the tinplate roll is rotatably mounted between the frames on both sides of the mounting frame. The axis of the main limiting roller, the length direction of the cutting groove, and the length direction of the cutting knife are parallel to each other. A drive component is provided on the mounting frame for driving the main limiting roller to rotate when the knife holder rises.

[0007] By adopting the above technical solution, in the process of cutting tinplate coils, the tinplate coil is first passed between the main limiting roller and the cutting platform until the end of the tinplate coil is aligned with the end of the cutting platform. Then, the electro-hydraulic push rod is activated and its push rod end is extended to its maximum stroke. This causes the knife holder connected to the push rod end of the electro-hydraulic push rod and the cutting blade fixed to the knife holder to both descend. With the cooperation of the cutting groove, the cutting blade cuts the tinplate coil. After cutting the tinplate coil, the push rod end of the electro-hydraulic push rod is controlled to retract to its shortest position. During this process, the drive component drives the main limiting roller to rotate and moves the iron coil to be cut toward the cutting groove in preparation for the subsequent cutting of iron coils. This eliminates the tedious operation of manually pushing the subsequent iron coils to be cut forward and improves the cutting efficiency of iron sheets.

[0008] Furthermore, mounting through holes are provided on both sides of the mounting frame. The driving assembly includes a driving unit, which includes a sliding plate slidably disposed in the mounting through hole, a sleeve fixed to the end of the blade holder, a sliding column passing through the sleeve near the end of the sliding plate, a limiting plate fixed to the sliding column near the end of the blade holder, and a limiting spring fixed between the limiting plate and the end of the blade holder. An annular groove is provided on the side wall of the sliding plate near the blade holder. The cross-section of the annular groove is a right-angled triangular groove. The bottom groove of the annular groove is parallel to the top of the cutting platform. The driving unit also includes a limiting block fixed in the vertical section of the annular groove and a guide block fixed to the bottom of the limiting block. The top of the limiting block is higher than the corner of the top of the annular groove. The cross-sections of the limiting block and the guide block are both right-angled triangular. The thickness of the limiting block is equal to the depth of the annular groove. The surface of the guide block away from the annular groove is an inclined surface. The distance between the inclined surface of the guide block and the inner wall of the annular groove decreases from top to bottom.

[0009] The drive assembly also includes a reset unit for resetting the sliding plate when the push rod end of the electro-hydraulic push rod extends to its maximum stroke, and a transmission unit for rotating the main limit roller.

[0010] By adopting the above technical solution, during the extension of the push rod end of the electro-hydraulic push rod, the tool holder fixed to the push rod end of the electro-hydraulic push rod, the sleeve fixed to the tool holder, the limiting spring connected to the sleeve, the limiting plate connected to the limiting spring, and the sliding column connected to the limiting plate all descend. Due to the limiting block, the cross-sections of the limiting block and the guide block are both right-angled triangles. The sliding column will move along the inclined groove of the annular groove and squeeze the inner sidewall of the annular groove, thereby causing the sliding plate to move away from the main limiting roller until the push rod end of the electro-hydraulic push rod extends to its maximum stroke. At this time, the reset unit drives the sliding plate to reset, and the sliding column is located at the junction of the horizontal section and the vertical section of the annular groove. As the push rod end of the electro-hydraulic actuator retracts to its shortest position, the sliding column moves upward along the vertical section of the annular groove. The sliding column first moves with the inclined surface of the guide block. Since the distance between the inclined surface of the guide block and the inner wall of the annular groove decreases from top to bottom, the sliding column is forced to move the limiting plate away from the sliding plate. The limiting spring is forced and gradually compressed. Then, the sliding column moves from the inclined surface of the guide block to the side wall of the limiting block near the sleeve. Finally, the sliding column moves to the position between the limiting block and the annular groove. At this time, the limiting spring gradually extends and resets, so that both the limiting plate and the sliding column move towards the annular groove and reset.

[0011] Furthermore, the reset unit includes a guide rod fixed in the mounting through hole and slidingly engaged with the sliding plate, and a reset spring sleeved on the guide rod. The reset spring is fixed between the sliding plate and the inner wall of the mounting through hole. Vertical through holes are provided on both sides of the mounting frame. The vertical through holes are located between the main limiting roller and the mounting through hole. The transmission unit includes an L-shaped plate fixed on the side wall of the tool holder near the main limiting roller and slidingly engaged with the vertical through hole, a U-shaped vertical rod fixed on the side wall of the sliding plate away from the tool holder, a horizontal plate slidably connected to the vertical section of the U-shaped vertical rod, a vertical plate fixed on the horizontal plate away from the U-shaped vertical plate, a rack fixed on the side wall of the vertical plate away from the horizontal plate, a U-shaped horizontal rod fixed on the L-shaped plate and slidingly engaged with the vertical plate, and a main transmission rod fixed on the main limiting roller near the sliding plate. The main transmission rod is rotatably mounted on the side wall of the mounting frame near the U-shaped vertical rod. The transmission unit also includes a main transmission gear fixedly sleeved on the main transmission rod and engaged with the rack.

[0012] By adopting the above technical solution, during the downward movement of the tool holder, the L-shaped plate fixed to the tool holder, the vertical plate connected to the L-shaped plate, and the rack connected to the vertical plate all descend. At the same time, as the sliding plate moves away from the main limiting roller, the U-shaped vertical rod fixed to the sliding plate, the horizontal plate slidably connected to the U-shaped vertical rod, the vertical plate fixed to the horizontal plate and slidably engaged with the U-shaped horizontal rod, and the rack fixed to the vertical plate all move. During this process, the return spring is stressed and gradually contracts until the sliding column moves to the bottom of the inclined section of the annular groove. At this time, the return spring gradually extends and resets, so that the sliding plate, U-shaped vertical rod, horizontal plate, vertical plate, and rack all move towards the main limiting roller and reset. At this time, the rack and the main drive gear are in a meshing state. During the upward movement of the blade holder, the rack moves upward and drives the main drive gear to rotate, which causes the main drive rod fixed to the main drive gear and the main limit roller fixed to the main drive rod to rotate. The main limit roller and the top of the cutting platform press against the tinplate coil, thereby achieving the purpose of moving the tinplate coil.

[0013] Furthermore, a follower roller is rotatably mounted between the frame bodies on both sides of the mounting frame. The axis of the follower roller is parallel to the axis of the main follower roller. The follower roller and the main follower roller are symmetrically arranged about the length of the cutting groove. The mounting frame is provided with a rotating assembly for driving the follower roller and the main follower roller to rotate synchronously. The rotating assembly includes a main synchronous pulley fixedly sleeved on the main drive rod and a follower drive rod fixedly to one end of the follower roller near the sliding plate. The follower drive rod passes through and is rotatably connected to the mounting frame. The rotating assembly also includes a follower synchronous pulley fixedly sleeved on the follower drive rod and a synchronous belt for connecting the main synchronous pulley and the follower synchronous pulley. The main synchronous pulley and the follower synchronous pulley are all engaged with the synchronous belt.

[0014] By adopting the above technical solution, during the rotation of the main drive rod, since the main synchronous pulley and the driven synchronous pulley are all meshed with the synchronous belt, the driven synchronous pulley is fixedly sleeved on the driven drive rod, the driven drive rod passes through and is rotatably connected to the mounting frame, the driven drive rod drives the driven limit roller to rotate synchronously with the main limit roller, and the driven limit roller will move the cut tinplate sheet away from the main limit roller, which facilitates the unloading of the tinplate sheet.

[0015] Furthermore, the top of the cutting platform is provided with an installation groove, in which two conveyor rollers are rotatably installed. The axes of the two conveyor rollers are parallel to the axis of the main limiting roller. A chain conveyor belt is provided in the installation groove. The distance between the top of the upper side of the chain conveyor belt and the bottom of the main limiting roller is equal to the thickness of the tinplate coil to be cut. The chain conveyor belt and the conveyor rollers are driven by chain drive. One of the conveyor rollers is located below the main limiting roller. The cutting platform is provided with a rotating unit for driving the two conveyor rollers and the main limiting roller to rotate in opposite directions simultaneously.

[0016] By adopting the above technical solution, the worker passes the tinplate through the position between the main limiting roller and the chain conveyor belt. Since the distance between the top of the upper side of the chain conveyor belt and the bottom of the main limiting roller is equal to the thickness of the tinplate coil to be cut, the chain conveyor belt and the conveyor roller are driven by chain drive. The drive rotation unit drives the two conveyor rollers and the main limiting roller to rotate in opposite directions at the same time, so that the main limiting roller of the chain conveyor belt can rotate in opposite directions at the same time, thereby realizing the purpose of tinplate movement and facilitating the conveying of tinplate.

[0017] Furthermore, the rotating unit includes a drive rod fixed to one end of the conveying roller located below the main limiting roller. The drive rod passes through and is rotatably connected to the side wall of the cutting platform near the main synchronous wheel. The rotating unit also includes a driven conveying gear fixedly sleeved on the drive rod and a main conveying gear fixedly sleeved on the main transmission rod and meshing with the driven conveying gear.

[0018] By adopting the above technical solution, during the rotation of the main limiting roller, the main drive rod fixed to the main limiting roller, the main conveying gear fixed to the main drive rod, the driven conveying gear meshing with the main conveying gear, the drive rod fixed to the driven conveying gear, and the conveying roller fixed to the drive rod all rotate, ensuring the normal conveying operation of the chain conveyor belt.

[0019] Furthermore, the blade holder is provided with two sets of clamping assemblies symmetrically arranged about the length of the cutting groove. Each set of clamping assemblies includes a mounting plate fixed to the blade holder, a clamping rod that passes through the top of the mounting plate and is slidably engaged, a limiting plate fixed to the upper end of the clamping rod, a clamping spring fixed between the limiting plate and the mounting plate, and a pressure block fixed to the lower end of the clamping rod. The distance between the bottom of the pressure block and the top of the cutting platform is less than the distance between the bottom of the cutting blade and the top of the cutting platform.

[0020] By adopting the above technical solution, during the process of the blade holder descending and cutting the iron sheet, the mounting plate fixed to the blade holder, the clamping rod connected to the mounting plate, the limiting plate connected to the clamping rod, the clamping spring connected to the limiting plate, and the pressure plate fixed to the clamping rod all descend. During this process, the pressure plate first contacts the top of the iron sheet and remains stationary, while the cutting blade continues to move downward and cut the iron sheet. During the cutting process, the pressure block will press the iron sheet tightly against the top of the cutting platform, improving the stability of the iron sheet during cutting.

[0021] Furthermore, the bottom of the pressure block is provided with a serrated groove.

[0022] By adopting the above technical solution, the serrated groove reduces the probability of the iron sheet slipping on the bottom of the pressure plate during cutting.

[0023] In summary, the present invention has the following beneficial effects: In this application, by setting a driving component, after each section of iron sheet is cut, the tedious operation of manually pushing the subsequent iron coils to be cut forward is eliminated, thereby improving the cutting efficiency of the iron sheet. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a structural diagram after removing the cutting platform and mounting bracket;

[0026] Figure 3 This is a structural schematic diagram of an embodiment of the present invention to highlight the vertical plate and the U-shaped crossbar;

[0027] Figure 4 This is a cross-sectional structural diagram of an embodiment of the present invention to highlight the sliding plate and the tool holder;

[0028] Figure 5 This is a schematic diagram illustrating the structure of the clamping assembly in an embodiment of this utility model;

[0029] Figure 6 This is a structural schematic diagram of an embodiment of the present invention to highlight the guide block and the limiting block;

[0030] Figure 7 yes Figure 5 Enlarged diagram of point A in the middle.

[0031] In the diagram: 1. Cutting platform; 2. Mounting frame; 3. Electro-hydraulic push rod; 4. Blade holder; 5. Cutting blade; 6. Main limiting roller; 7. Drive assembly; 71. Drive unit; 711. Sliding plate; 712. Sleeve; 713. Sliding column; 714. Limiting plate; 715. Limiting spring; 716. Limiting block; 717. Guide block; 72. Reset unit; 721. Guide rod; 722. Reset spring; 73. Transmission unit; 731. L-shaped plate; 732. U-shaped vertical rod; 733. Horizontal plate; 734. Vertical plate; 735. Rack; 736. U-shaped horizontal... 737. Main drive rod; 738. Main drive gear; 8. Mounting through hole; 9. Annular groove; 10. Limiting roller; 11. Rotating assembly; 111. Main synchronous pulley; 112. Drive rod; 113. Drive synchronous pulley; 114. Synchronous belt; 12. Mounting groove; 13. Conveyor roller; 14. Chain conveyor belt; 15. Rotating unit; 151. Drive rod; 152. Drive conveyor gear; 153. Main conveyor gear; 16. Pressing assembly; 161. Mounting plate; 162. Pressing rod; 163. Limiting plate; 164. Pressing spring; 165. Pressing block. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] like Figure 1-7 As shown in the figure, this application discloses a cutting mechanism for can manufacturing, including a cutting platform 1, a mounting frame 2, a drive assembly 7, a rotating assembly 11, a rotating unit 15, and a clamping assembly 16. The mounting frame 2 is fixed to the top of the cutting platform 1. A cutting groove is provided on the top of the cutting platform 1. An electric hydraulic push rod 3 is fixed to the top of the mounting frame 2. Mounting through holes 8 are provided through the frame on both sides of the mounting frame 2. A limiting roller 10 is rotatably mounted between the frame on both sides of the mounting frame 2. A vertical through hole is provided through the frame on both sides of the mounting frame 2. A main limiting roller 6, which cooperates with the top of the cutting platform 1 and abuts against the tinplate coil, is rotatably mounted between the frame on both sides of the mounting frame 2. The vertical through hole is located between the main limiting roller 6 and the mounting through hole 8. The push rod end of the electric hydraulic push rod 3 is fixed with a knife holder 4 located between the frame at the top of the mounting frame 2 and the cutting platform 1. The bottom of the knife holder 4 is fixed with a cutting knife 5 located above the cutting groove. The axis of the limiting roller 10, the axis of the main limiting roller 6, the length direction of the cutting groove, and the length direction of the cutting knife 5 are parallel to each other. The limiting roller 10 and the main limiting roller 6 are symmetrically arranged about the length direction of the cutting groove.

[0034] During the cutting of tinplate coils, the tinplate coil is first passed between the main limiting roller 6 and the cutting platform 1 until the end of the tinplate coil is aligned with the end of the cutting platform. Then, the electro-hydraulic push rod 3 is activated and its push rod end is extended to its maximum stroke. This causes the knife holder 4 connected to the push rod end of the electro-hydraulic push rod 3 and the cutting blade 5 fixed to the knife holder 4 to descend. With the cooperation of the cutting groove, the cutting blade 5 cuts the tinplate coil. After cutting the tinplate coil, the push rod end of the electro-hydraulic push rod 3 is controlled to retract to its shortest position. During this process, the drive component 7 drives the main limiting roller 6 to rotate and moves the iron coil to be cut toward the cutting groove, in preparation for the subsequent cutting of the iron coil. This eliminates the tedious manual operation of pushing the subsequent iron coil forward and improves the cutting efficiency of the iron sheet.

[0035] The drive assembly 7 is mounted on the mounting frame 2 and is used to drive the main limiting roller 6 to rotate when the blade holder 4 rises. Two sets of drive assemblies 7 are arranged symmetrically about the center of the mounting frame 2. Each drive assembly 7 includes a drive unit 71, a reset unit 72, and a transmission unit 73. The drive unit 71 includes a sliding plate 711, a sleeve 712, a sliding column 713, a limiting plate 714, a limiting spring 715, a limiting block 716, and a guide block 717. The sliding plate 711 is slidably disposed within the mounting through hole 8. An annular groove 9 is formed on the side wall of the sliding plate 711 near the blade holder 4. The cross-section of the annular groove 9 is a right-angled triangular groove, and the bottom of the annular groove 9 is parallel to the top of the cutting platform 1. The sleeve 712 is fixed to the end of the blade holder 4, and the sliding column 713 passes through the end of the sleeve 712 near the sliding plate 711. A limiting plate 714 is fixed to one end of the sliding column 713 near the tool holder 4, and a limiting spring 715 is fixed between the limiting plate 714 and the end of the tool holder 4. A limiting block 716 is fixed within the vertical section of the annular groove 9, with the top of the limiting block 716 higher than the corner of the top of the annular groove 9. The thickness of the limiting block 716 is equal to the depth of the annular groove 9, and a guide block 717 is fixed to the bottom of the limiting block 716. The cross-sections of both the limiting block 716 and the guide block 717 are right-angled triangles. The surface of the guide block 717 away from the annular groove 9 is an inclined surface, and the distance between the inclined surface of the guide block 717 and the inner wall of the annular groove 9 decreases from top to bottom.

[0036] The reset unit 72 is used to drive the sliding plate 711 to reset when the push rod end of the electro-hydraulic push rod 3 extends to its maximum stroke. The reset unit 72 includes a guide rod 721 and a reset spring 722. The guide rod 721 is fixed in the mounting through hole 8 and slides in cooperation with the sliding plate 711. The reset spring 722 is sleeved on the guide rod 721. The reset spring 722 is fixed between the sliding plate 711 and the inner wall of the mounting through hole 8.

[0037] During the extension of the push rod end of the electric hydraulic push rod 3, the tool holder 4 fixed to the push rod end of the electric hydraulic push rod, the sleeve 712 fixed to the tool holder 4, the limiting spring 715 connected to the sleeve 712, the limiting plate 714 connected to the limiting spring 715, and the sliding column 713 connected to the limiting plate 714 all descend. Due to the limiting block 716, the cross-sections of the limiting block 716 and the guide block 717 are both right-angled triangles, and the sliding column 713 will move along the annular groove 9. The sliding plate 711 moves in the inclined groove and squeezes the inner wall of the annular groove 9, thereby causing the sliding plate 711 to move away from the main limit roller 6. The return spring 722 is stressed and gradually contracts until the end of the push rod of the electro-hydraulic push rod 3 extends to its maximum stroke. At this time, the sliding column 713 moves to the bottom of the inclined section of the annular groove 9, the return spring 722 gradually extends and drives the sliding plate 711 to return to its original position, and the sliding column 713 is located at the junction of the horizontal section and the vertical section of the annular groove 9. During the process of the push rod end of the electric hydraulic push rod 3 retracting to its shortest position, the sliding column 713 will move upward along the vertical section of the annular groove 9. The sliding column 713 will first move with the inclined surface of the guide block 717. Since the distance between the inclined surface of the guide block 717 and the inner wall of the annular groove 9 decreases from top to bottom, the sliding column 713 will be forced to drive the limiting plate 714 to move away from the sliding plate 711. The limiting spring 715 will be forced and gradually compressed. Then the sliding column 713 will move from the inclined surface of the guide block 717 to the side wall of the limiting block 716 near the sleeve 712. Finally, the sliding column 713 will move to the position between the limiting block 716 and the annular groove 9. At this time, the limiting spring 715 will gradually extend and reset, so that both the limiting plate 714 and the sliding column 713 will move towards the annular groove 9 and reset.

[0038] The transmission unit 73 drives the main limiting roller 6 to rotate. The transmission unit 73 includes an L-shaped plate 731, a U-shaped vertical rod 732, a horizontal plate 733, a vertical plate 734, a rack 735, a U-shaped horizontal rod 736, a main transmission rod 737, and a main transmission gear 738. The L-shaped plate 731 is fixed to the side wall of the tool holder 4 near the main limiting roller 6 and slides in engagement with the vertical through hole. The U-shaped vertical rod 732 is fixed to the side wall of the sliding plate 711 away from the tool holder 4. The horizontal plate 733 is slidably connected to the vertical section of the U-shaped vertical rod 732. The vertical plate 734 is fixed to the end of the horizontal plate 733 away from the U-shaped vertical plate 734. The rack 735 is fixed to the side wall of the vertical plate 734 away from the horizontal plate 733. The U-shaped horizontal rod 736 is fixed to the L-shaped plate 731 and slides in engagement with the vertical plate 734. The main drive rod 737 is fixed to one end of the main limiting roller 6 near the sliding plate 711. The main drive rod 737 passes through and is rotatably mounted on the side wall of the mounting frame 2 near the U-shaped vertical rod 732. The main drive gear 738 is fixedly sleeved on the main drive rod 737 and cooperates with the rack 735.

[0039] During the downward movement of the tool holder 4, the L-shaped plate 731 fixed to the tool holder 4, the vertical plate 734 connected to the L-shaped plate 731, and the rack 735 connected to the vertical plate 734 all descend. Simultaneously, as the sliding plate 711 moves away from the main limiting roller 6, the U-shaped vertical rod 732 fixed to the sliding plate 711, the horizontal plate 733 slidably connected to the U-shaped vertical rod 732, and the vertical plate 734 fixed to the horizontal plate 733 and slidably engaged with the U-shaped horizontal rod 736... Both the rack 735, which is fixed to the vertical plate 734, and the pinion 735 move. During this process, the return spring 722 is stressed and gradually contracts until the sliding column 713 moves to the bottom of the inclined section of the annular groove 9. At this time, the return spring 722 gradually extends and resets, causing the sliding plate 711, U-shaped vertical rod 732, horizontal plate 733, vertical plate 734, and rack 735 to move towards the main limiting roller 6 and reset. At this time, the rack 735 is in a meshing state with the main drive gear 738. During the upward movement of the cutter holder 4, the rack 735 moves upward and drives the main drive gear 738 to rotate, which causes the main drive rod 737, which is fixed to the main drive gear 738, and the main limiting roller 6, which is fixed to the main drive rod 737, to rotate. The main limiting roller 6 and the top of the cutting platform 1 press against the tinplate coil, thereby achieving the purpose of moving the tinplate coil.

[0040] The rotating assembly 11 is mounted on the mounting frame 2 and is used to drive the slave limiting roller 10 and the main limiting roller 6 to rotate synchronously. The rotating assembly 11 includes a main synchronous pulley 111, a slave transmission rod 112, a slave synchronous pulley 113, and a synchronous belt 114. The main synchronous pulley 111 is fixedly sleeved on the main transmission rod 737. The slave transmission rod 112 is fixed to one end of the slave limiting roller 10 near the sliding plate 711, and the slave transmission rod 112 passes through and is rotatably connected to the mounting frame 2. The slave synchronous pulley 113 is fixedly sleeved on the slave transmission rod 112. The synchronous belt 114 is used to connect the main synchronous pulley 111 and the slave synchronous pulley 113. Both the main synchronous pulley 111 and the slave synchronous pulley 113 are engaged with the synchronous belt 114.

[0041] During the rotation of the main drive rod 737, since the main synchronous pulley 111 and the driven synchronous pulley 113 are all meshed with the synchronous belt 114, the driven synchronous pulley 113 is fixedly sleeved on the driven drive rod 112, and the driven drive rod 112 passes through and is rotatably connected to the mounting frame 2. The driven drive rod 112 drives the driven limiting roller 10 to rotate synchronously with the main limiting roller 6. The driven limiting roller 10 will move the cut tinplate sheet away from the main limiting roller 6, which facilitates the unloading of the tinplate sheet.

[0042] The top of the cutting platform 1 has a mounting groove 12, and two conveyor rollers 13 are rotatably mounted in the mounting groove 12. The axes of the two conveyor rollers 13 are parallel to the axis of the main limiting roller 6. A chain conveyor belt 14 is installed in the mounting groove 12. The distance between the top of the upper side of the chain conveyor belt 14 and the bottom of the main limiting roller 6 is equal to the thickness of the tinplate coil to be cut. The chain conveyor belt 14 and the conveyor rollers 13 are driven by chain drive, and one of the conveyor rollers 13 is located below the main limiting roller 6.

[0043] The rotating unit 15 is mounted on the cutting platform 1 and is used to drive the two conveying rollers 13 and the main limiting roller 6 to rotate in opposite directions simultaneously. The rotating unit 15 includes a drive rod 151, a driven conveying gear 152, and a main conveying gear 153. The drive rod 151 is fixed to one end of the conveying roller 13 located below the main limiting roller 6. The drive rod 151 passes through and is rotatably connected to the side wall of the cutting platform 1 near the main synchronous pulley 111. The driven conveying gear 152 is fixedly sleeved on the drive rod 151, and the main conveying gear 153 is fixedly sleeved on the main transmission rod 737 and meshes with the driven conveying gear 152.

[0044] The worker passes the tinplate through the position between the main limiting roller 6 and the chain conveyor belt 14. Since the distance between the top of the upper side of the chain conveyor belt 14 and the bottom of the main limiting roller 6 is equal to the thickness of the tinplate coil to be cut, the chain conveyor belt 14 and the conveyor roller 13 are driven by chain transmission. During the rotation of the main limiting roller 6, the main drive rod 737 fixed to the main limiting roller 6, the main conveyor gear 153 fixed to the main drive rod 737, the driven conveyor gear 152 meshing with the main conveyor gear 153, the drive rod 151 fixed to the driven conveyor gear 152, and the conveyor roller 13 fixed to the drive rod 151 all rotate. This causes the chain conveyor belt 14 and the main limiting roller 6 to rotate in opposite directions at the same time, thereby achieving the purpose of moving the tinplate and facilitating the conveying of the tinplate.

[0045] The clamping assembly 16 is mounted on the blade holder 4, and has two sets of components symmetrically arranged along the length of the cutting groove. The clamping assembly 16 includes a mounting plate 161, a clamping rod 162, a limiting plate 163, a clamping spring 164, and a clamping block 165. The mounting plate 161 is fixed to the blade holder 4, and the clamping rod 162 passes through the top of the mounting plate 161 and slides in engagement with it. The limiting plate 163 is fixed to the upper end of the clamping rod 162, and the clamping spring 164 is fixed between the limiting plate 163 and the mounting plate 161. The clamping block 165 is fixed to the lower end of the clamping rod 162, and the distance between the bottom of the clamping block 165 and the top of the cutting platform 1 is less than the distance between the bottom of the cutting blade 5 and the top of the cutting platform 1.

[0046] During the process of the blade holder 4 descending and cutting the iron sheet, the mounting plate 161 fixed to the blade holder 4, the clamping rod 162 connected to the mounting plate 161, the limiting plate 163 connected to the clamping rod 162, the clamping spring 164 connected to the limiting plate 163, and the pressure plate fixed to the clamping rod 162 all descend. During this process, the pressure plate first contacts the top of the iron sheet and remains stationary, while the cutting blade 5 continues to move downward and cut the iron sheet. During the cutting process, the pressure block 165 presses the iron sheet tightly against the top of the cutting platform 1, improving the stability of the iron sheet during cutting.

[0047] The bottom of the pressure block 165 is provided with a serrated groove. The serrated groove reduces the probability of the iron sheet slipping on the bottom of the pressure plate during cutting.

[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cutting mechanism for can manufacturing, comprising a cutting platform (1) and a mounting frame (2) fixed to the top of the cutting platform (1), wherein the top of the cutting platform (1) is provided with a cutting groove, and an electric hydraulic push rod (3) is fixed to the top of the mounting frame (2), wherein a knife holder (4) is fixed at the end of the push rod of the electric hydraulic push rod (3) between the frame body at the top of the mounting frame (2) and the cutting platform (1), and a cutting blade (5) is fixed at the bottom of the knife holder (4) above the cutting groove, characterized in that: The main limiting roller (6) is installed on the both sides of the frame body of the mounting frame (2) and cooperates with the top of the cutting platform (1) and abuts against the tin roll, the axis of the main limiting roller (6), the length direction of the cutting groove and the length direction of the cutting knife (5) are parallel to each other, and the mounting frame (2) is provided with a driving assembly (7) for driving the main limiting roller (6) to rotate when the knife holder (4) rises.

2. The cutting mechanism for can making and processing according to claim 1, characterized in that: The mounting through hole (8) is arranged on the both sides of the frame body of the mounting frame (2), the driving assembly (7) comprises a driving unit (71), the driving unit (71) comprises a sliding plate (711) slidably arranged in the mounting through hole (8), a sleeve (712) fixed to the end of the knife holder (4), a sliding column (713) penetrating the sleeve (712) and close to the sliding plate (711), a limiting plate (714) fixed to the end of the sliding column (713) close to the knife holder (4), and a limiting spring (715) fixed between the limiting plate (714) and the end of the knife holder (4), an annular groove (9) is formed in the side wall of the sliding plate (711) close to the knife holder (4), the cross section of the annular groove (9) is a right triangle groove, the bottom groove of the annular groove (9) is parallel to the top of the cutting platform (1), the driving unit (71) further comprises a limiting block (716) fixed in the vertical section of the annular groove (9) and a guide block (717) fixed to the bottom of the limiting block (716), the top of the limiting block (716) is higher than the corner of the top of the annular groove (9), the cross sections of the limiting block (716) and the guide block (717) are right triangles, the thickness of the limiting block (716) is equal to the depth of the annular groove (9), the surface of the guide block (717) away from the annular groove (9) is an inclined surface, and the distance between the inclined surface of the guide block (717) and the inner wall of the annular groove (9) decreases from top to bottom. The driving assembly (7) further comprises a reset unit (72) for resetting the sliding plate (711) when the push rod end of the electric hydraulic push rod (3) is stretched to the maximum stroke and a transmission unit (73) for driving the main limiting roller (6) to rotate.

3. The cutting mechanism for can making and processing according to claim 2, characterized in that: The reset unit (72) comprises a guide rod (721) fixed in the mounting hole (8) and in sliding fit with the sliding plate (711), and a reset spring (722) sleeved on the guide rod (721), which is fixed between the sliding plate (711) and the inner wall of the mounting hole (8). Vertical holes are provided on the two sides of the frame body of the mounting frame (2), and the vertical holes are located between the main limiting roller (6) and the mounting hole (8). The transmission unit (73) comprises an L-shaped plate (731) fixed on the side wall of the tool holder (4) near the main limiting roller (6) and in sliding fit with the vertical hole, a U-shaped vertical rod (732) fixed on the side wall of the sliding plate (711) away from the tool holder (4), a horizontal plate (733) in sliding connection with the vertical section of the U-shaped vertical rod (732), a vertical plate (734) fixed on the horizontal plate (733) away from the U-shaped vertical plate (734), a rack (735) fixed on the side wall of the vertical plate (734) away from the horizontal plate (733), a U-shaped horizontal rod (736) fixed on the L-shaped plate (731) and in sliding fit with the vertical plate (734), and a main transmission rod (737) fixed on the main limiting roller (6) near the sliding plate (711). The main transmission rod (737) is rotatably connected to the side wall of the mounting frame (2) near the U-shaped vertical rod (732). The transmission unit (73) further comprises a main transmission gear (738) fixedly sleeved on the main transmission rod (737) and in fit with the rack (735).

4. The cutting mechanism for can manufacturing according to claim 1, characterized in that: The mounting frame (2) is rotatably connected between the frame bodies on both sides, and the shaft line of the slave limiting roller (10) is parallel to the shaft line of the main limiting roller (6). The slave limiting roller (10) and the main limiting roller (6) are symmetrically arranged with respect to the length direction of the cutting groove. The mounting frame (2) is provided with a rotating assembly (11) for driving the slave limiting roller (10) and the main limiting roller (6) to rotate synchronously. The rotating assembly (11) comprises a main synchronous wheel (111) fixedly sleeved on the main transmission rod (737) and a slave transmission rod (112) fixed on the slave limiting roller (10) near the sliding plate (711). The slave transmission rod (112) is rotatably connected to the mounting frame (2). The rotating assembly (11) further comprises a slave synchronous wheel (113) fixedly sleeved on the slave transmission rod (112) and a synchronous belt (114) for connecting the main synchronous wheel (111) and the slave synchronous wheel (113). The main synchronous wheel (111) and the slave synchronous wheel (113) are in engagement with the synchronous belt (114).

5. The cutting mechanism for can making and processing according to claim 1, characterized in that: The top of the cutting platform (1) is provided with an installation groove (12), a conveying roller (13) is rotatably installed in the installation groove (12), the conveying roller (13) is provided with two, the axes of the two conveying rollers (13) are parallel to the axis of the main limiting roller (6), a chain plate conveyor belt (14) is arranged in the installation groove (12), the distance between the top of the chain plate conveyor belt (14) and the bottom of the main limiting roller (6) is equal to the thickness of the tinplate roll to be cut, the chain plate conveyor belt (14) and the conveying roller (13) are driven in a chain transmission mode, and one of the conveying rollers (13) is arranged below the main limiting roller (6). The cutting platform (1) is provided with a rotating unit (15) for driving the two conveying rollers (13) and the main limiting roller (6) to rotate in opposite directions at the same time.

6. The cutting mechanism for can making and processing according to claim 5, characterized in that: The rotating unit (15) comprises a drive rod (151) fixed to one end of the conveying roller (13) below the main limiting roller (6), the drive rod (151) penetrates and is rotatably connected to the side wall of the cutting platform (1) near the main synchronous wheel (111), and the rotating unit (15) further comprises a slave conveying gear (152) fixedly sleeved on the drive rod (151) and a main conveying gear (153) fixedly sleeved on the main transmission rod (737) and engaged with the slave conveying gear (152).

7. The cutting mechanism for can making and processing according to claim 1, characterized in that: The cutter holder (4) is provided with two groups of pressing assemblies (16) symmetrically arranged about the length direction of the cutting groove, each group of the pressing assemblies (16) comprises a mounting plate (161) fixed to the cutter holder (4), a pressing rod (162) penetrating the top of the mounting plate (161) and being in sliding fit, a limiting plate (163) fixed to the upper end of the pressing rod (162), a pressing spring (164) fixed between the limiting plate (163) and the mounting plate (161), and a pressing block (165) fixed to the lower end of the pressing rod (162), and the distance between the bottom of the pressing block (165) and the top of the cutting platform (1) is less than the distance between the bottom of the cutting knife (5) and the top of the cutting platform (1).

8. The cutting mechanism for can making and processing according to claim 7, characterized in that: The bottom of the pressing block (165) is provided with a sawtooth groove.

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