A double roller coating machine

Abstract

The application discloses a double-roller rubber coating machine and belongs to the technical field of clamping equipment. The double-roller rubber coating machine comprises an operation table, rubber columns, supporting rubber rings, a conveying mechanism and a clamping mechanism. The rubber rings are closely arranged side by side on the rubber columns. The leftmost rubber ring abuts against one end of the clamping mechanism, and the rightmost rubber ring is located at the rightmost end of the rubber column. The conveying mechanism is arranged between the rubber columns. One of the double rollers is opposite to the rubber column. The double roller comprises an axle and a group of rollers arranged on the axle. The rollers are provided with wheel grooves. The diameter of the rollers is the same as that of the rubber column. The diameter of the wheel grooves is smaller than that of the rollers. One end of the conveying mechanism is arranged on the operation table. The conveying mechanism is movably connected with the clamping mechanism. The double-roller rubber coating machine realizes the continuous and alternating movement of the double rollers by the clamping mechanism, and then the double rollers are positioned and stopped for rubber coating. The double-roller rubber coating machine realizes the continuous and rapid rubber coating of multiple double rollers, the accurate positioning of the double rollers during stepping and the accurate positioning of the double rollers during rubber coating at the same time. The double-roller rubber coating machine is high in production efficiency, accurate in the fixing of the rubber rings and the wheel grooves and high in product quality.

Description

Technical Field

[0001] This invention relates to the field of clamping equipment technology, specifically a double roller coating machine. Background Technology

[0002] Dual rollers are rolling mechanisms used in mobile equipment. Their structure consists of one axle and two rollers, enhancing the support of the mobile equipment. They are widely used in trolleys or small freight carts. To increase the friction between the rollers and the ground during rolling and to provide cushioning and shock absorption for the mobile equipment, rubber rings are wrapped around the roller grooves. These rings are made of elastic rubber and are enlarged and tightly fitted onto rubber posts during production, ready for use when coating the rollers. Current technology requires removing the rubber rings from the rubber posts before coating the rollers, as the roller groove diameter is smaller than the roller diameter. To ensure the rubber ring is tightly secured within the wheel groove, the diameter of the wheel needs to be adjusted. An internal support mechanism is required to open the removed rubber ring and pass it through the roller. Then, a removal device is used to remove the rubber ring, allowing it to automatically spring back and fix itself to the wheel groove. This completes the rubber coating of the double rollers. However, the existing technology uses a lot of equipment and is cumbersome to operate. Removing the rubber ring from the rubber column, opening it with an internal support mechanism, and then removing it with a removal mechanism is not only cumbersome and inefficient for roller coating, but also makes it difficult to accurately position the rubber ring and wheel groove during removal, easily causing misalignment. Summary of the Invention

[0003] To address the technical problems mentioned in the background section, the present invention provides a dual-roller coating machine, employing the following technical solution:

[0004] The system includes an operating console with a PLC control cabinet inside. The console is equipped with a clamping mechanism and a set of fixing mechanisms. The clamping mechanism is located inside the console, while the fixing mechanism is located on the upper part of the console. The clamping and fixing mechanisms are connected. The fixing mechanism includes a fixing plate on the console, on which are attached rubber columns. Each rubber column has a tightly fitted, extended rubber ring. The leftmost rubber ring abuts against one end of the clamping mechanism, and the rightmost rubber ring is located at the rightmost end of the rubber column. A conveying mechanism is located between the rubber columns. Several double rollers are evenly arranged side-by-side on the conveying mechanism, with one double roller directly opposite the rubber columns. Each double roller includes an axle and a set of rollers mounted on the axle. The rollers have grooves, and their diameters are the same as the diameter of the rubber columns, while the groove diameter is smaller than the roller diameter. One end of the conveying mechanism is located on the console, and the conveying mechanism is movably connected to the clamping mechanism.

[0005] Furthermore, the operating platform includes support legs and several crossbeams mounted on the support legs, with gaps between the crossbeams.

[0006] Furthermore, the clamping mechanism includes a gear component and clamping components disposed on both sides of the gear component. A motor is mounted on the gear component, and the gear component is movably connected to the conveying mechanism. One end of the clamping component is disposed on a rubber column.

[0007] Furthermore, the gear component includes a gearbox with an open upper section. A first bearing, a second bearing, and a third bearing are sequentially arranged on the gearbox from top to bottom. Inside the gearbox, a first gear, a half gear, and a second gear are sequentially arranged from top to bottom. The half gear meshes with the first gear and the second gear respectively. A first shaft, a second shaft, and a third shaft are respectively arranged on the first gear, the half gear, and the second gear. The first shaft, the second shaft, and the third shaft are connected to the first bearing, the second bearing, and the third bearing respectively. The first gear is higher than the upper part of the gearbox and is movably connected to the conveying mechanism. The output shaft of the motor is connected to the second shaft, and a clamping component is provided on the third shaft.

[0008] Furthermore, a support plate is provided on the gearbox, and the motor is mounted on the support plate.

[0009] Furthermore, fixing blocks are provided on both sides of the gearbox, and the fixing blocks are fixed to the crossbeam.

[0010] Furthermore, the clamping component includes a threaded rod mounted on the third rotating shaft, a threaded sleeve mounted on the threaded rod, an L-shaped connecting rod mounted on the threaded sleeve, a clamping plate mounted on the L-shaped connecting rod, a sliding hole mounted on the clamping plate, and the clamping plate is fitted onto the rubber column through the sliding hole, with the rubber column abutting against the leftmost rubber ring.

[0011] Furthermore, the feeding mechanism includes a rack with several shaft holes evenly distributed on it. The axles of the double rollers are placed on the shaft holes. The distance between the two rollers of the double rollers is the same as the width of the rack. The rack meshes with the first gear. Slide grooves are provided on both sides of the rack. A set of L-shaped limit rods are provided in the slide grooves and fixed to the crossbeam.

[0012] This invention has the following advantages: The double rollers are placed on the conveying mechanism. The clamping mechanism drives the rubber rings arranged side-by-side on both the conveying mechanism and the fixing mechanism. First, the clamping mechanism drives the conveying mechanism to advance, bringing the double rollers between the two rubber columns. Since the diameter of the rollers is the same as the diameter of the rubber columns, the two ends of the double rollers are aligned with the two rubber columns. This step ensures precise positioning between the double rollers and the rubber columns. Then, the conveying mechanism and the double rollers stop, and the conveying mechanism clamps the rubber rings on the two rubber columns at each end and moves them towards each other by the thickness of one rubber ring. This causes the outermost rubber ring on the two rubber columns to move and fit onto the roller. Since the thickness of the rubber ring is much greater than the thickness of the roller's side, this process is more efficient. In this invention, a small portion of the rubber ring is fitted onto the roller, while the majority remains suspended outside the wheel groove. The rubber ring is elastically stretched and suspended outside the groove. Being a smooth, round strip, the portion of the rubber ring fitted onto the roller contracts under elastic contraction potential energy and slides off the roller into the wheel groove, tightly gripping it. This achieves the rubber coating of the double rollers. This step involves precise positioning of the rubber ring covering the wheel groove. The invention uses a clamping mechanism to continuously and alternately move and position the double rollers before stopping the coating process. This not only enables continuous and rapid coating of multiple double rollers but also simultaneously achieves precise positioning during both the roller's stepping and coating processes. This results in high production efficiency, precise fixing of the rubber ring and wheel groove, and high product quality. Attached Figure Description

[0013] Figure 1 The three-dimensional representation of the present invention Figure 1 ;

[0014] Figure 2 The three-dimensional representation of the present invention Figure 2 ;

[0015] Figure 3 The three-dimensional representation of the present invention Figure 3 ;

[0016] Figure 4 This is a three-dimensional schematic diagram of the adhesive column of the present invention without the adhesive ring;

[0017] Figure 5 For the present invention Figure 4 A magnified view of a portion of point a.

[0018] Figure 6 This is a perspective view of the conveying mechanism of the present invention;

[0019] Figure 7 The three-dimensional representation of the present invention Figure 4 ;

[0020] Figure 8 For the present invention Figure 7 A magnified view of a section at point b.

[0021] Attached Figures: 1. Control Panel, 2. PLC Control Cabinet, 3. Fixing Plate, 4. Glue Column, 5. Glue Ring, 6. Double Roller, 7. Wheel Axle, 8. Roller, 9. Wheel Groove, 10. Support Leg, 11. Crossbeam, 12. Motor, 13. Gearbox, 14. First Bearing, 15. Second Bearing, 16. Third Bearing, 17. First Gear, 18. Half Gear, 19. Second Gear, 20. First Rotating Shaft, 21. Second Rotating Shaft, 22. Third Rotating Shaft, 23. Support Plate, 24. Fixing Block, 25. Threaded Rod, 26. Threaded Sleeve, 27. L-shaped Connecting Rod, 28. Clamping Plate, 29. Sliding Hole, 30. Rack, 31. Shaft Hole, 32. Sliding Groove, 33. L-shaped Limiting Rod. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please refer to Figures 1 to 8This invention provides a double-roller coating machine, including an operating table 1. A PLC control cabinet 2 is located inside the operating table 1 to control the operation of a motor 12. The operating table 1 is equipped with a clamping mechanism and a set of fixing mechanisms. The clamping mechanism serves two purposes: firstly, it drives the conveying mechanism to move; secondly, it clamps and moves the rubber rings 5 ​​that are closely arranged side-by-side on two rubber columns 4. The clamping mechanism is located inside the operating table 1, and the fixing mechanism is located on the upper part of the operating table 1. The clamping mechanism is connected to the fixing mechanism. The fixing mechanism includes a fixing plate 3 fixed to the operating table 1. Rubber columns 4 are mounted on the fixing plate 3 and fixed to it. Enlarged rubber rings 5 ​​are tightly fitted side-by-side on the rubber columns 4. The rubber rings 5 ​​are made of elastic rubber material. The enlarged rubber rings fit snugly onto the rubber columns 4 to ensure they remain tightly fitted and do not shift when leaving the production line. The leftmost rubber ring is... The rubber ring 5 abuts against one end of the clamping mechanism, and the rightmost rubber ring 5 is located at the rightmost end of the rubber column 4. This is to ensure that after each previous rubber ring 5 moves a distance equal to the thickness of one rubber ring 5, the next rubber ring 5 can also be in contact with the next double roller 6 when it connects to the rubber column 4. A conveying mechanism is set between the rubber columns 4, and several double rollers 6 are evenly arranged side by side on the conveying mechanism. One of the double rollers 6 is directly opposite the rubber columns 4. The double roller 6 includes a wheel axle 7 and a set of rollers 8 set on the wheel axle 7. The rollers 8 are provided with wheel grooves 9. The diameter of the rollers 8 is the same as the diameter of the rubber column 4, so that the rubber ring 5 can smoothly slide from the rubber column 4 to the side of the roller 8. The diameter of the wheel groove 9 is smaller than the diameter of the roller 8. When the rubber ring 5 shrinks to its normal state on the wheel groove 9, it will be tightly clamped on the wheel groove 9. One end of the conveying mechanism is set on the operating table 1, and the conveying mechanism is movably connected to the clamping mechanism.

[0024] The operating platform 1 includes support legs 10 and several crossbeams 11 mounted on the support legs 10. There is a gap between the crossbeams 11. The clamping mechanism includes a gear and clamping members mounted on both sides of the gear. A motor 12 is mounted on the gear. The motor 12 drives the gear, and the gear drives the clamping members to perform clamping actions. The gear is movably connected to the conveying mechanism, and the gear drives the conveying mechanism. One end of the clamping member is mounted on the rubber column 4 to clamp the rubber ring 5 on the rubber column 4.

[0025] The gear assembly includes a gearbox 13 with an open upper section to allow the first gear 17 to protrude from the outside of the gearbox 13. A first bearing 14, a second bearing 15, and a third bearing 16 are sequentially arranged on the gearbox 13 from top to bottom. Inside the gearbox 13, a first gear 17, a half gear 18, and a second gear 19 are sequentially arranged from top to bottom. The half gear 18 meshes with both the first gear 17 and the second gear 19. When the half gear 18 rotates and meshes with the first gear 17, causing the first gear 17 to rotate, the second gear 19 does not mesh with the half gear 18 and therefore does not rotate. Similarly, when the half gear 18 drives the second gear 19 to rotate, the first gear 17 does not rotate. A first rotating shaft 20 is respectively provided on the first gear 17, the half gear 18, and the second gear 19. The first rotating shaft 20, the second rotating shaft 21, and the third rotating shaft 22 are respectively connected to the first bearing 14, the second bearing 15, and the third bearing 16. The first gear 17 is higher than the upper part of the gearbox 13 and is movably connected to the conveying mechanism. The output shaft of the motor 12 is connected to the second rotating shaft 21. The motor 12 drives the second rotating shaft 21 to rotate slowly on the second bearing 15. The third rotating shaft 22 is equipped with a clamping component. The gearbox 13 is equipped with a support plate 23. The motor 12 is mounted on the support plate 23. The support plate 23 is fixed to the gearbox 13. The motor 12 is fixed to the support plate 23. Fixing blocks 24 are provided on both sides of the gearbox 13. The fixing blocks 24 are fixed to the crossbeam 11. The gearbox 13 is fixed to the crossbeam 11 by the fixing blocks 24.

[0026] The clamping component includes a threaded rod 25 mounted on the third rotating shaft 22, a threaded sleeve 26 mounted on the threaded rod 25, an L-shaped connecting rod 27 mounted on the threaded sleeve 26, a clamping plate 28 mounted on the L-shaped connecting rod 27, and a sliding hole 29 mounted on the clamping plate 28. The clamping plate 28 is fitted onto the rubber column 4 through the sliding hole 29, and the rubber column 4 abuts against the leftmost rubber ring 5. When the second gear 19 rotates, the second gear 19 drives the third rotating shaft 22 to rotate, and the third rotating shaft 22 drives the threaded rod 25 to rotate. When the threaded rod 25 rotates, the threaded sleeve 26 on the threaded rod 25 moves towards the side closer to the double roller 6 on the threaded rod 25. The threaded sleeve 26 drives the L-shaped connecting rod 27, and the L-shaped connecting rod 27 drives the clamping plate 28 on the rubber column 4 to move towards the side closer to the double roller 6, so that the clamping plate 28 clamps and moves the rubber ring 5 on the rubber column 4.

[0027] The conveying mechanism includes a rack 30 with several shaft holes 31 evenly distributed on it. The axle 7 of the double rollers 6 is placed on the shaft holes 31. The distance between the two rollers 8 of the double rollers 6 is the same as the width of the rack 30, so that while the axle 7 of the double rollers 6 is engaged in the shaft holes 31, the two rollers 8 on the double rollers 6 engage the rack 30 on the left and right, so that the double rollers 6 are stably placed on the rack 30. The rack 30 meshes with the first gear 17. The rotation of the first gear 17 drives the rack 30 to move. The rack 30 is provided with sliding grooves 32 on both sides. A set of L-shaped limiting rods 33 is provided in the sliding grooves 32. The L-shaped limiting rods 33 are fixed on the crossbeam 11 and provide limiting support for the rack 30. At the same time, when the rack 30 moves, the sliding grooves 32 move on the L-shaped limiting rods 33.

[0028] The working principle of this invention is as follows: The axle 7 of each double roller 6 is placed on the corresponding shaft hole 31, so that the double roller 6 is limited on the rack 30. The motor 12 is started via the PLC control cabinet 2. The motor 12 drives the second rotating shaft 21 to rotate slowly on the second bearing 15. The second rotating shaft 21 drives the half gear 18 to rotate. The toothed part of the half gear 18 first meshes with the first gear 17 and drives the first gear 17 to rotate. The first gear 17 drives the first rotating shaft 20 to rotate on the first bearing 14. Simultaneously, the first gear 17 drives the rack 30 to move forward, sliding... The groove 32 slides on the L-shaped limiting rod 33, and the rack 30 drives the double rollers 6 to move forward. When the two sides of the first double roller 6 are exactly in the middle of the two rubber pillars 4, the two sides of the double roller 6 are exactly engaged with the rubber pillars 4. At this time, the toothed part of the half gear 18 disengages from the first gear 17, and the rack 30 and the double rollers 6 stop moving. The toothed part of the half gear 18 meshes with the second gear 19 and drives the second gear 19 to rotate. The second gear 19 drives the third rotating shaft 22 to rotate on the third bearing 16. The third rotating shaft 22 drives the threaded rod 25 to rotate. The threaded rod 25 rotates, causing the threaded sleeve 26 to move towards the gearbox 13. The threaded sleeve 26 drives the L-shaped connecting rod 27, and the threaded rod 25 drives the clamping plate 28 to move synchronously. The clamping plate 28 moves on the rubber column 4 and clamps all the rubber rings 5 ​​on the rubber column 4, moving them towards the double roller 6. This causes all the rubber rings 5 ​​to move a distance equal to the thickness of one rubber ring 5. The rubber rings 5 ​​first slide on the side of the roller 8, with most of the rubber rings 5 ​​suspended outside the groove 9. Because the rubber rings 5 ​​are smooth, round strips and have an inward elasticity... Due to the potential energy, the rubber ring 5 retracts like a rubber band and slides away from the side of the roller 8, entering the groove 9 and tightly clamping onto the groove 9, completing the rubber coating of the double roller 6. At this time, the toothed part of the half gear 18 just disengages from the second gear 19, the clamping plate 28 stops moving, and the half gear 18 drives the first gear 17 and the rack 30 to move again to coat the next double roller 6. It is worth noting that when the last double roller 6 on the rack 30 is coated, the motor 12 rotates in the opposite direction and drives the rack 30 to move in the opposite direction, which facilitates the return of the rack 30 to its original position.

[0029] This invention is simple to operate, convenient to use, and suitable for widespread promotion and application. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double-roller coating machine, comprising an operating table (1), wherein a PLC control cabinet (2) is provided inside the operating table (1), characterized in that, A clamping mechanism and a set of fixing mechanisms are provided on the operating table (1). The clamping mechanism is located inside the operating table (1), and the fixing mechanism is located on the upper part of the operating table (1). The clamping mechanism is connected to the fixing mechanism. The fixing mechanism includes a fixing plate (3) on the operating table (1). A rubber column (4) is provided on the fixing plate (3). A large rubber ring (5) is tightly fitted on the rubber column (4) side by side. The leftmost rubber ring (5) abuts against one end of the clamping mechanism, and the rightmost rubber ring (5) is located at the rightmost end of the rubber column (4). A conveying mechanism is provided between the rubber columns (4). Several double rollers (6) are evenly arranged side by side on the conveying mechanism. One of the double rollers (6) is directly opposite the rubber column (4). The double roller (6) includes A wheel axle (7) and a set of rollers (8) on the wheel axle (7). The rollers (8) are provided with grooves (9). The diameter of the rollers (8) is the same as the diameter of the rubber column (4). The diameter of the grooves (9) is smaller than the diameter of the rollers (8). One end of the conveying mechanism is set on the operating table (1). The conveying mechanism is movably connected to the clamping mechanism. The leftmost rubber ring (5) abuts against one end of the clamping mechanism, and the rightmost rubber ring (5) is located at the rightmost end of the rubber column (4). This is to ensure that after each previous rubber ring (5) moves a distance of one rubber ring (5) thickness, the next rubber ring (5) can also be connected to the next double roller (6) when it connects to the rubber column (4). The rubber ring (5) is always close to one side of the double roller (6). The clamping mechanism includes a gear component and clamping components disposed on both sides of the gear component. A motor (12) is disposed on the gear component. The gear component is movably connected to the conveying mechanism. One end of the clamping component is disposed on the rubber column (4). The gear assembly includes a gearbox (13), the upper part of which is an open structure. A first bearing (14), a second bearing (15), and a third bearing (16) are arranged sequentially from top to bottom on the gearbox (13). Inside the gearbox (13), a first gear (17), a half gear (18), and a second gear (19) are arranged sequentially from top to bottom. The half gear (18) meshes with the first gear (17) and the second gear (19) respectively. The wheel (19) is provided with a first rotating shaft (20), a second rotating shaft (21) and a third rotating shaft (22). The first rotating shaft (20), the second rotating shaft (21) and the third rotating shaft (22) are respectively connected to the first bearing (14), the second bearing (15) and the third bearing (16). The first gear (17) is higher than the upper part of the gearbox (13) and is movably connected to the conveying mechanism. The output shaft of the motor (12) is connected to the second rotating shaft (21). The third rotating shaft (22) is provided with a clamping component. The clamping component includes a threaded rod (25) mounted on the third rotating shaft (22), a threaded sleeve (26) mounted on the threaded rod (25), an L-shaped connecting rod (27) mounted on the threaded sleeve (26), a clamping plate (28) mounted on the L-shaped connecting rod (27), a sliding hole (29) mounted on the clamping plate (28), and the clamping plate (28) is fitted onto the rubber column (4) through the sliding hole (29), with the rubber column (4) abutting against the leftmost rubber ring (5).

2. The double roller coating machine according to claim 1, characterized in that, The operating platform (1) includes a support leg (10) and several crossbeams (11) set on the support leg (10), with gaps between the crossbeams (11).

3. The double roller coating machine according to claim 2, characterized in that, A support plate (23) is provided on the gearbox (13), and the motor (12) is provided on the support plate (23).

4. The double roller coating machine according to claim 3, characterized in that, The gearbox (13) is provided with fixing blocks (24) on both sides, and the fixing blocks (24) are fixed to the crossbeam (11).

5. The double roller coating machine according to claim 4, characterized in that, The conveying mechanism includes a rack (30), on which several shaft holes (31) are evenly distributed. The axle (7) of the double roller (6) is placed on the shaft hole (31). The distance between the two rollers (8) of the double roller (6) is the same as the width of the rack (30). The rack (30) meshes with the first gear (17). Slide grooves (32) are provided on both sides of the rack (30). A set of L-shaped limit rods (33) are provided in the slide grooves (32). The L-shaped limit rods (33) are fixed on the crossbeam (11).

Images