An automatic trimming device for tinplate can top cover

Abstract

The application discloses a kind of tin can top cover automatic edge trimming device, including workbench, and be set on the upper trimming mechanism and lower trimming mechanism of workbench, upper trimming mechanism includes upper trimming plate, and for driving upper trimming plate moves along X axis movable plate, and for driving upper trimming plate moves along the fixed plate of Z axis direction, lower trimming mechanism includes lower trimming plate, and for driving lower trimming plate moves along the fixed frame of Y axis;Upper trimming plate bottom surface fixedly bonded with upper rubber strip and upper polishing belt, the top surface of lower trimming plate opposite with upper rubber strip is bonded with lower polishing belt, the top surface of lower trimming plate opposite with upper polishing belt is bonded with lower rubber strip.The size of upper rubber strip, upper polishing belt, lower rubber strip and lower polishing belt of the application is all greater than the size of can cover, so that the edge of different size can cover can be trimmed, and need not stop adjusting, greatly improve work efficiency, be favorable to large-scale production.

Description

Technical Field

[0001] This invention relates to the field of tin can processing equipment technology, and more specifically, to an automated trimming device for tin can lids. Background Technology

[0002] Tin cans are classified into two-piece cans and three-piece cans according to their structure. A three-piece can consists of three parts: the can body, the can bottom, and the can lid. A two-piece can consists of two parts: the can lid and the can body with the bottom. After the can lid is stamped, its edges have burrs, which need to be trimmed and polished for subsequent processing.

[0003] To address this, existing technology (CN217255149U) discloses an automatic trimming device for can lid processing. Through the cooperation of a second electric telescopic rod and a clamping assembly, the clamped can lid can be moved into the machine housing, thereby facilitating the grinding wheel's grinding of the can lid.

[0004] For example, existing technology (CN214867740U) discloses an automatic trimming device for can lid processing. A support rod drives the can lid upwards, clamping it between the support rod and a fixing rod, thus fixing the can lid. Two trimming blades can simultaneously trim the upper and lower edges of the can lid.

[0005] The aforementioned existing technologies all involve clamping the can lid first, and then grinding or trimming the edges of the can lid using grinding or trimming equipment. However, in large-scale operations, it is not possible to quickly clamp and remove the can lid. In addition, when trimming can lids of different sizes, it is necessary to adjust the position of the grinding or trimming equipment, which reduces the overall work efficiency.

[0006] Given the shortcomings of the existing technology, it is necessary to further improve it in order to meet the actual use case. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0008] Therefore, the purpose of this invention is to provide an automated trimming device for tin can lids.

[0009] This invention provides an automated trimming device for tin can lids, including a worktable, and an upper trimming mechanism and a lower trimming mechanism disposed on the worktable.

[0010] The upper trimming mechanism includes an upper trimming plate, a movable plate for driving the upper trimming plate to move along the X-axis, and a fixed plate for driving the upper trimming plate to move along the Z-axis.

[0011] The lower trimming mechanism includes a lower trimming plate and a fixed frame for driving the lower trimming plate to move along the Y-axis;

[0012] The upper trimming plate has an upper rubber strip and an upper grinding belt fixedly bonded to its bottom surface. The lower trimming plate has a lower grinding belt bonded to its top surface opposite to the upper rubber strip. The lower trimming plate has a lower rubber strip bonded to its top surface opposite to the upper grinding belt.

[0013] The lower trimming plate, lower rubber strip, and lower grinding belt are provided with multiple interconnected slots. A vertical rod passes through the slot. The bottom end of the vertical rod is welded to the inner wall of the bottom end of the chip collection box. The outer wall of the bottom end of the chip collection box is welded to the inner wall of the bottom end of the fixing frame through a second spring.

[0014] The top surface of the upper trimmed plate is bolted with multiple sliding rails, and the bottom end of the fixing plate is provided with a sliding groove that matches the sliding rails.

[0015] A set of vertical plates is welded to the side of the lower trimming plate, and the top of the vertical plates is in contact with the side of the upper trimming plate.

[0016] As a preferred technical solution:

[0017] As described above, an automated trimming device for tin can lids includes a set of first guide rods slidably connected to the movable plate, and a first lead screw threadedly connected to the movable plate. The two ends of the first guide rods are welded and fixed to the first side plate, and the two ends of the first lead screw are connected to the bearings of the first side plate. The bottom end of the first side plate is fixed perpendicularly to the surface of the worktable with bolts.

[0018] With the above technical solution, a first servo motor is bolted to the first side plate, and the output shaft of the first servo motor is connected to the first lead screw. In this way, the first lead screw can rotate axially under the drive of the first servo motor, and then the first lead screw can push the movable plate to move along the first guide rod. In addition, the first lead screw can drive the movable plate to move horizontally back and forth by forward and reverse rotation.

[0019] As described above, an automated trimming device for tin can lids includes a fixed plate with bolts on the top surface of the fixed plate, wherein evenly distributed vertical rods are bolted to the top surface of the fixed plate, the top ends of the vertical rods penetrate the movable plate and are bolted to the top plate, and a first spring is sleeved on the vertical rod between the movable plate and the top plate, with both ends of the first spring welded to the movable plate and the top plate.

[0020] With the above technical solution, the movable plate can drive the vertical rod to move synchronously while moving horizontally back and forth, which in turn can drive the fixed plate to move horizontally back and forth as well. Furthermore, while the fixed plate moves horizontally, it can also move vertically up and down synchronously through the vertical rod, resulting in a reasonable structure.

[0021] As described above, an automated trimming device for tin can lids has a trapezoidal protrusion welded to the top surface of a fixed plate. An extrusion rod is provided on each of the two inclined surfaces of the protrusion. The bottom surface of the extrusion rod is inclined and parallel to the side surface of the protrusion. Ball grooves for placing balls are evenly distributed on the bottom surface of the extrusion rod, and the balls are in contact with the side surface of the protrusion.

[0022] Through the above technical solution, the structural design of the protrusion allows it to be squeezed with the extrusion rod while moving horizontally with the fixed plate. Under the extrusion of the extrusion rod, the protrusion will be pushed downward, which in turn can push the fixed plate downward. The fixed plate can drive the upper trimming plate downward. The downward upper trimming plate can approach the lower trimming plate and clamp the can lid to realize the trimming and grinding operation.

[0023] As described above, an automated trimming device for tin can lids has a fixing frame shaped like an inverted "U", and a horizontal bar is bolted to the outer wall of the bottom end of the fixing frame.

[0024] A set of second guide rods slidably connected to the crossbar passes through it, and a second lead screw threadedly connected to it also passes through it. The two ends of the second guide rods are welded to the second side plate and the third side plate respectively. The two ends of the second lead screw are respectively connected to the bearings of the second side plate and the third side plate. The bottom ends of the second side plate and the third side plate are fixed to the workbench surface with bolts perpendicular to it. The third side plate is welded to one end of the extrusion rod.

[0025] With the above technical solution, a second servo motor is bolted to the third side plate. The output shaft of the second servo motor is connected to one end of the second lead screw. In this way, the second lead screw will rotate axially under the drive of the second servo motor. Then, the second lead screw can push the crossbar to move horizontally back and forth along the second guide rod. The crossbar will drive the lower trimming plate to move synchronously through the fixing frame. By rotating the second lead screw in both forward and reverse directions, the horizontal back and forth movement of the lower trimming plate can be realized.

[0026] As described above, in an automated trimming device for tin can lids, both the sliding rail and the sliding groove have a "T" shaped cross-section. The directions of the sliding rail and the first guide rod are perpendicular to each other. One end of the sliding rail is welded to the wall of the sliding groove via a third spring.

[0027] With the above technical solution, the sliding rail can slide linearly in the sliding groove, and the upper trimming plate can move on the fixed plate. Furthermore, the "T" shaped structure design ensures that the upper trimming plate will not separate from the fixed plate during movement.

[0028] As described above, an automated edge trimming device for tin can lids has a chip collection box with an inverted U-shaped cross section. Both ends of the chip collection box are sealed and fitted to the fixing frame. A dust collection chamber is formed between the chip collection box, the fixing frame, and the lower edge trimming plate. A dust suction hole is provided on the side wall of the fixing frame opposite to the dust collection chamber.

[0029] With the above technical solution, when the upper and lower trimming plates are trimming and polishing the can lid, some metal shavings will be generated. These metal shavings will fall into the shavings collection box through the channel, which can collect the metal shavings in a concentrated manner. The suction hole is connected to the dust collection equipment through a hose, which can generate suction at the dust collection hole to suck up the metal shavings for recycling. At the same time, in order to improve the dust collection effect, the bottom surface of the shavings collection box is inclined, so that the metal shavings can slide to one side of the dust collection hole for easy collection and adsorption.

[0030] As described above, an automated trimming device for tin can lids has the top of a vertical rod located above the top surface of a lower trimming plate. A groove is formed at the top of the vertical rod, and a magnetic post is embedded in the groove. A set of grooves is formed on the bottom surface of the upper trimming plate, and the distance between the two grooves is the same as the width of the upper rubber strip. A long strip of magnetic strip is adhered in the groove, and the opposite sides of the magnetic strip and the magnetic post are magnetic poles of the same name.

[0031] Through the above technical solution, when the upper trimming plate moves downward and approaches the lower trimming plate, in order to avoid the uprights obstructing the downward movement of the upper trimming plate, the design of the magnetic strip and magnetic column allows the uprights to automatically move downward and into the chip collection box under the action of magnetic force. Furthermore, the spacing design of the two grooves ensures that the uprights can always be aligned with the magnetic strips before or after the upper trimming plate moves.

[0032] As described above, in an automated edge trimming device for tin can lids, the upper and lower edge trimming plates are parallel to each other, and the upper rubber strip, upper grinding belt, lower rubber strip, and lower grinding belt on both plates have the same width.

[0033] With the above technical solution, the widths of the upper rubber strip, upper grinding belt, lower rubber strip, and lower grinding belt are all greater than the diameter of the can lid. In this way, the upper rubber strip, together with the lower grinding belt, or the upper grinding belt, together with the lower rubber strip, can completely cover the can lid, ensuring the edge trimming and grinding effect of the can lid.

[0034] The advantages of the automated trimming device for tin can lids of the present invention are as follows:

[0035] This invention is equipped with an upper trimming plate and a lower trimming plate. When the upper trimming plate moves horizontally, it can move downwards to fit against the lower trimming plate, thereby clamping the can lid. After fitting against the lower trimming plate, the upper trimming plate will continue to move horizontally for a certain distance and then move upwards again. In this way, the upper trimming plate can continuously fit against and separate from the lower trimming plate. When separating, the can lid can be placed on the lower trimming plate or the trimmed can lid can be removed from the lower trimming plate. The placement and removal can be done quickly, greatly reducing the operation time of this process.

[0036] The upper trimming plate is equipped with an upper rubber strip and an upper grinding belt, while the lower trimming plate is equipped with a lower rubber strip and a lower grinding belt. The upper rubber strip, in conjunction with the lower grinding belt, can grind and trim the bottom surface of the can lid, while the upper grinding belt, in conjunction with the lower rubber strip, can grind and trim the top surface of the can lid. Throughout the trimming process, the can lid is placed on the lower rubber strip or the lower grinding belt. Furthermore, the dimensions of the upper rubber strip, the upper grinding belt, the lower rubber strip, and the lower grinding belt are all larger than the dimensions of the can lid, thus enabling the trimming of can lids of different sizes without stopping the machine for adjustment. This greatly improves work efficiency and is beneficial for large-scale production. Attached Figure Description

[0037] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein

[0038] Figure 1 This is a front view structural diagram of the present invention;

[0039] Figure 2 This is a top view of the structure of the present invention;

[0040] Figure 3 This is a top view of the lower trimming plate structure of the present invention;

[0041] Figure 4 This is a top view of the fixing plate and protrusion structure of the present invention;

[0042] Figure 5 This is a three-dimensional structural diagram of the upper trimming plate and the fixing plate of the present invention;

[0043] Figure 6 This is a cross-sectional view of the protrusion and extrusion rod of the present invention;

[0044] Figure 7 This is a three-dimensional structural diagram of the lower trimming plate and fixing frame of the present invention;

[0045] Figure 8 This is a cross-sectional view of the upper trimming plate and the fixing plate of the present invention;

[0046] Figure 9 This is a cross-sectional view of the lower trimming plate and chip collection box of the present invention.

[0047] In the diagram: 1. Workbench; 2. Upper trimming plate; 3. Lower trimming plate; 4. Upper rubber strip; 5. Upper grinding belt; 6. Lower rubber strip; 7. Lower grinding belt; 8. Fixed plate; 9. Movable plate; 10. Top plate; 11. Vertical rod; 12. First spring; 13. Protrusion; 14. Extrusion rod; 15. Ball groove; 16. Ball; 17. First guide rod; 18. First lead screw; 19. First side plate; 20. Fixed frame; 21. Horizontal bar; 22. Second lead screw; 23. Second guide rod; 24. Second side plate; 25. Third side plate; 26. Through groove; 27. Vertical rod; 28. Chip collection box; 29. ​​Second spring; 30. Vertical plate; 31. Dust collection chamber; 32. Sliding rail; 33. Sliding groove; 34. Third spring; 35. Groove; 36. Magnetic strip. Detailed Implementation

[0048] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0050] This invention provides a technical solution: an automated trimming device for tin can lids.

[0051] It includes a worktable 1, and an upper trimming mechanism and a lower trimming mechanism disposed on the worktable 1.

[0052] like Figure 1 and Figure 2 As shown, the upper trimming mechanism includes an upper trimming plate 2 and a movable plate 9 for driving the upper trimming plate 2 to move along the X-axis. A set of first guide rods 17 slidably connected to the movable plate 9 passes through it, and a first lead screw 18 threadedly connected to it also passes through it. The two ends of the first guide rods 17 are welded and fixed to the first side plate 19. The two ends of the first lead screw 18 are connected to the bearings of the first side plate 19. The bottom end of the first side plate 19 is bolted vertically to the surface of the worktable 1. During operation, the movable plate 9 can move horizontally back and forth along the first guide rods 17 under the drive of the first lead screw 18.

[0053] like Figure 1 , Figure 2 , Figure 4 and Figure 6As shown, the upper trimming mechanism includes a fixed plate 8 for driving the upper trimming plate 2 to move along the Z-axis. Evenly distributed vertical rods 11 are bolted to the top surface of the fixed plate 8. The top ends of the vertical rods 11 pass through a movable plate 9 and are bolted to a top plate 10. A first spring 12 is fitted onto the vertical rods 11 between the movable plate 9 and the top plate 10. Both ends of the first spring 12 are welded to both the movable plate 9 and the top plate 10. A trapezoidal protrusion 13 is welded to the top surface of the fixed plate 8. Extrusion rods 14 are provided on both sides of the protrusion 13. The bottom surface of the extrusion rods 14 is inclined and parallel to the side surface of the protrusion 13. Ball grooves 15 are evenly formed on the bottom surface of the extrusion rods 14 for placing balls 16. The balls 16 fit against the side surface of the protrusion 13.

[0054] When the movable plate 9 moves horizontally, the vertical rod 11 moves synchronously and drives the fixed plate 8 to move horizontally. When the inclined surface of the protrusion 13 on the fixed plate 8 moves to contact the bottom surface of the pressing rod 14, the pressing rod 14 applies a downward pressing force to the protrusion 13, which in turn pushes the fixed plate 8 downward through the protrusion 13. At this time, the fixed plate 8 drives the top plate 10 to move downward synchronously through the vertical rod 11. The downward-moving top plate 10 can compress the first spring 12.

[0055] When the extrusion rod 14 is located on the top surface of the protrusion 13, the fixing plate 8 will remain in a downward state and continue to move horizontally for a certain distance. When the protrusion 13 separates from the extrusion rod 14, the protrusion 13 loses the extrusion force, and the first spring 12 returns to its natural length from the compressed state. Then, the top plate 10 drives the fixing plate 8 to move upward and reset. In this way, when the fixing plate 8 moves horizontally, it can drive the upper trimming plate 2 to continuously fit and separate from the lower trimming plate 3.

[0056] The ball 16 can roll in the ball groove 15, so when the inclined surface of the protrusion 13 contacts the bottom surface of the extrusion rod 14, the sliding friction can be converted into rolling friction through the ball 16, reducing the friction force and ensuring that the protrusion 13 can move quickly under the extrusion rod 14, avoiding vibration when the protrusion 13 and the extrusion rod 14 come into contact, which would affect the stability of the equipment.

[0057] like Figure 1 and Figure 3 As shown, the lower trimming mechanism includes a lower trimming plate 3 and a fixed frame 20 for driving the lower trimming plate 3 to move along the Y-axis. The fixed frame 20 is in the shape of an inverted "U". A horizontal bar 21 is bolted to the outer wall of the bottom end of the fixed frame 20. A set of second guide rods 23 that are slidably connected to the horizontal bar 21 passes through it, and a second lead screw 22 that is threadedly connected to it also passes through it. The two ends of the second guide rods 23 are welded to the second side plate 24 and the third side plate 25 respectively. The two ends of the second lead screw 22 are respectively connected to the bearings of the second side plate 24 and the third side plate 25. The bottom ends of the second side plate 24 and the third side plate 25 are bolted perpendicular to the surface of the worktable 1. The third side plate 25 is welded to one end of the extrusion rod 14.

[0058] The two ends of the lower trimming plate 3 are bolted to the two side walls of the fixing frame 20. The horizontal bar 21 can move horizontally back and forth along the second guide rod 23 under the drive of the second screw 22, and thus drive the lower trimming plate 3 to move synchronously through the fixing frame 20.

[0059] like Figure 3 and Figure 5 As shown, the upper trimming plate 2 has an upper rubber strip 4 and an upper grinding belt 5 fixedly bonded to its bottom surface. The lower trimming plate 3 has a lower grinding belt 7 bonded to its top surface opposite to the upper rubber strip 4. The lower trimming plate 3 has a lower rubber strip 6 bonded to its top surface opposite to the upper grinding belt 5. The upper trimming plate 2 and the lower trimming plate 3 are parallel to each other, and the widths of the upper rubber strip 4, upper grinding belt 5, lower rubber strip 6 and lower grinding belt 7 on both are the same.

[0060] During operation, the can lid to be trimmed can be placed on the lower grinding belt 7 on the lower trimming plate 3. When the upper trimming plate 2 moves down and fits against the lower trimming plate 3, the can lid is clamped between the upper rubber strip 4 on the upper trimming plate 2 and the lower grinding belt 7 on the lower trimming plate 3. At this time, the upper trimming plate 2 will continue to move horizontally for a distance after moving down. During this process, the upper rubber strip 4 will deform due to the pressure of the can lid, which will cause part of the can lid to embed into the upper rubber strip 4. In this way, the upper trimming plate 2 can drive the can lid to move through the upper rubber strip 4. The moving can lid can rub against the lower grinding belt 7, thereby achieving trimming and grinding of the bottom surface of the can lid. Moreover, the size design of the upper rubber strip 4, upper grinding belt 5, lower rubber strip 6 and lower grinding belt 7 can completely cover the can lid, and the can lid can be trimmed and ground in an all-round way.

[0061] like Figure 3 , Figure 5 and Figure 8 As shown, multiple through slots 26 are provided on the lower trimming plate 3, the lower rubber strip 6, and the lower grinding belt 7. A vertical rod 27 passes through the through slot 26. Multiple sliding rails 32 are bolted to the top surface of the upper trimming plate 2. A sliding groove 33 adapted to the sliding rail 32 is provided at the bottom end of the fixing plate 8. The cross-section of the sliding rail 32 and the sliding groove 33 is a "T" shaped structure. The directions of the sliding rail 32 and the first guide rod 17 are perpendicular to each other. One end of the sliding rail 32 is welded to the groove wall of the sliding groove 33 through a third spring 34. A set of vertical plates 30 are welded to the side of the lower trimming plate 3. The top of the vertical plates 30 is in contact with the side of the upper trimming plate 2.

[0062] After the can lid rubs against the lower grinding belt 7 multiple times, the lower trimming plate 3 can be driven to move toward the third side plate 25. The can lid will be blocked by the upright 27 as it moves with the lower grinding belt 7, thus preventing the can lid from moving synchronously with the lower grinding belt 7. At this time, the can lid is transferred from the lower grinding belt 7 to the lower rubber strip 6.

[0063] When the lower trimming plate 3 moves, it will drive the upper trimming plate 2 to move synchronously on the fixed plate 8 through the vertical plate 30. At this time, the lower trimming plate 3 and the upper trimming plate 2 move in the same direction, and the moving distance of the two is equal to the width of the upper rubber strip 4. In this way, the upper trimming plate 2 after moving can make the upper grinding belt 5 located above the can lid.

[0064] When the upper trimming plate 2 moves along the sliding rail 32, it will compress the third spring 34. After the lower trimming plate 3 is reset, the upper trimming plate 2 can be reset synchronously under the elastic force of the third spring 34, which is a reasonable structure.

[0065] like Figure 1 , Figure 3 and Figure 5 As shown, the top of the upright 27 is located above the top surface of the lower trimmed plate 3. The top of the upright 27 has a groove, in which a magnetic column is embedded. The bottom surface of the upper trimmed plate 2 has a set of grooves 35. The distance between the two grooves 35 is the same as the width of the upper rubber strip 4. A long strip of magnetic strip 36 is bonded in the groove 35. The side of the magnetic strip 36 and the magnetic column opposite to each other are the same magnetic poles.

[0066] When the upper trimming plate 2 moves synchronously with the lower trimming plate 3, and the fixing plate 8 drives the upper trimming plate 2 to move downward, since the distribution trajectory of the upright 27 and the magnetic strip 36 on the upper trimming plate 2 are exactly on the same vertical plane, when the magnetic strip 36 approaches the upright 27, the magnetic strip 36 and the magnetic column will generate a repulsive force, which will push the upright 27 downward, so that the upright 27 is retracted into the through groove 26, avoiding the upright 27 from colliding with the lower trimming plate 3 and being damaged.

[0067] After descending, the upper trimming plate 2 will once again adhere to the lower trimming plate 3. In this way, the can lid is clamped between the upper grinding belt 5 on the upper trimming plate 2 and the lower rubber strip 6 on the lower trimming plate 3. Since the can lid is squeezed into the lower rubber strip 6, when the upper trimming plate 2 moves horizontally with the upper grinding belt 5, the can lid cannot move with it. In this way, the moving upper grinding belt 5 will rub against the can lid, thereby trimming and grinding the top surface of the can lid.

[0068] Since the upper trimming plate 2 will continuously adhere to and separate from the lower trimming plate 3, the modified can lid can be taken out or the can lid to be trimmed can be put in during separation. To improve safety, external tools can be used to hold the can lid in and out.

[0069] like Figure 7 and Figure 9As shown, the bottom end of the upright 27 is welded to the inner wall of the bottom end of the chip collection box 28. The outer wall of the bottom end of the chip collection box 28 is welded to the inner wall of the bottom end of the fixing frame 20 through the second spring 29. The cross-section of the chip collection box 28 is inverted "U" shape. Both ends of the chip collection box 28 are sealed and fitted to the fixing frame 20. The chip collection box 28, the fixing frame 20 and the lower trimming plate 3 enclose a dust collection chamber 31. A dust suction hole is opened on the side wall of the fixing frame 20 opposite to the dust collection chamber 31.

[0070] When the upright 27 moves downward, it will drive the chip collection box 28 downward, and the chip collection box 28 will compress the second spring 29. When the upper trimming plate 2 moves upward and resets, under the action of the second spring 29, the chip collection box 28 will drive the upright 27 to extend out of the through groove 26 again.

[0071] When the upper trimming plate 2 and the lower trimming plate 3 are trimming and polishing the can lid, the waste generated by the polishing will fall into the dust collection chamber 31 through the through groove 26, which makes it easy to collect the waste. When the dust suction hole is connected to the dust collection equipment through the hose, it can generate suction to suck away the waste, thereby preventing the waste from scattering and affecting the working environment.

[0072] In the description of this specification, terms such as "connection," "installation," and "fixation" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms within this invention based on the specific circumstances.

[0073] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0074] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated trimming device for tin can lids, comprising a worktable (1), and an upper trimming mechanism and a lower trimming mechanism disposed on the worktable (1), characterized in that: The upper trimming mechanism includes an upper trimming plate (2), a movable plate (9) for driving the upper trimming plate (2) to move along the X-axis, and a fixed plate (8) for driving the upper trimming plate (2) to move along the Z-axis. The lower trimming mechanism includes a lower trimming plate (3) and a fixing frame (20) for driving the lower trimming plate (3) to move along the Y-axis; The upper trimming plate (2) has an upper rubber strip (4) and an upper grinding belt (5) fixedly bonded to its bottom surface. The lower trimming plate (3) has a lower grinding belt (7) bonded to its top surface opposite to the upper rubber strip (4). The lower trimming plate (3) has a lower rubber strip (6) bonded to its top surface opposite to the upper grinding belt (5). The lower trimming plate (3), lower rubber strip (6) and lower grinding belt (7) are provided with multiple through grooves (26) that are interconnected. A vertical rod (27) runs through the through groove (26). The bottom end of the vertical rod (27) is welded to the inner wall of the bottom end of the chip collection box (28). The outer wall of the bottom end of the chip collection box (28) is welded to the inner wall of the bottom end of the fixing frame (20) through a second spring (29). The top surface of the upper trimming plate (2) is bolted with multiple sliding rails (32), and the bottom end of the fixing plate (8) is provided with a sliding groove (33) that matches the sliding rails (32); A set of vertical plates (30) are welded to the side of the lower trimming plate (3), and the top of the vertical plates (30) is in contact with the side of the upper trimming plate (2).

2. The automated trimming device for tin can lids according to claim 1, characterized in that: A set of first guide rods (17) slidably connected to the movable plate (9) is passed through it, and a first screw rod (18) threadedly connected to it is also passed through it. The two ends of the first guide rods (17) are welded and fixed to the first side plate (19). The two ends of the first screw rod (18) are connected to the bearings of the first side plate (19). The bottom end of the first side plate (19) is fixed to the surface of the workbench (1) with a vertical bolt.

3. The automated trimming device for tin can lids according to claim 1, characterized in that: The top surface of the fixed plate (8) is bolted with evenly distributed vertical rods (11). The top end of the vertical rod (11) passes through the movable plate (9) and is bolted to the top plate (10). A first spring (12) is sleeved on the vertical rod (11) between the movable plate (9) and the top plate (10). Both ends of the first spring (12) are welded to the movable plate (9) and the top plate (10).

4. The automated trimming device for tin can lids according to claim 3, characterized in that: The top surface of the fixing plate (8) is welded with a trapezoidal protrusion (13). Both sides of the protrusion (13) are provided with extrusion rods (14). The bottom surface of the extrusion rod (14) is inclined and parallel to the side surface of the protrusion (13). The bottom surface of the extrusion rod (14) is evenly provided with ball grooves (15) for placing balls (16). The balls (16) are in contact with the side surface of the protrusion (13).

5. The automated trimming device for tin can lids according to claim 1, characterized in that: The fixing frame (20) is in the shape of an inverted "U". A horizontal bar (21) is bolted to the outer wall of the bottom end of the fixing frame (20). A set of second guide rods (23) slidably connected to the crossbar (21) is passed through it, and a second lead screw (22) threadedly connected to it is also passed through it. The two ends of the second guide rod (23) are welded to the second side plate (24) and the third side plate (25) respectively. The two ends of the second lead screw (22) are respectively connected to the bearings of the second side plate (24) and the third side plate (25). The bottom ends of the second side plate (24) and the third side plate (25) are fixed vertically to the surface of the workbench (1) with bolts. The third side plate (25) is welded to one end of the extrusion rod (14).

6. The automated trimming device for tin can lids according to claim 1, characterized in that: The sliding rail (32) and the sliding groove (33) both have a "T" shaped cross-section. The sliding rail (32) and the first guide rod (17) are perpendicular to each other. One end of the sliding rail (32) is welded to the groove wall of the sliding groove (33) through a third spring (34).

7. The automated trimming device for tin can lids according to claim 1, characterized in that: The cross-section of the chip collection box (28) is inverted "U". Both ends of the chip collection box (28) are sealed and fitted to the fixing frame (20). A dust collection chamber (31) is formed between the chip collection box (28), the fixing frame (20) and the lower trimming plate (3). A dust suction hole is provided on the side wall of the fixing frame (20) opposite to the dust collection chamber (31).

8. The automated trimming device for tin can lids according to claim 1, characterized in that: The top of the pole (27) is located above the top surface of the lower trimmed plate (3), and a groove is provided at the top of the pole (27), in which a magnetic column is embedded.

9. An automated trimming device for tin can lids according to claim 8, characterized in that: The bottom surface of the upper trimming plate (2) is provided with a set of grooves (35), the distance between the two grooves (35) is the same as the width of the upper rubber strip (4), and a long strip of magnet (36) is bonded in the groove (35). The side of the magnet (36) and the magnet column opposite to each other are the same magnetic poles.

10. An automated trimming device for tin can lids according to claim 1, characterized in that: The upper trimming plate (2) and the lower trimming plate (3) are parallel to each other, and the upper rubber strip (4), upper grinding belt (5), lower rubber strip (6) and lower grinding belt (7) on both are of the same width.

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