A clamping and conveying mechanism for paint bucket liquid nitrogen treatment

Abstract

The present application relates to paint bucket purification treatment technical field, specifically is related to a kind of paint bucket liquid nitrogen processing with clamping and conveying mechanism, including rack, drive pivot, rotating ring, several inner rods and transfer assembly being annularly arranged along rotating ring axis, transfer assembly includes clamping mechanism, rotating mechanism and vibration mechanism, clamping mechanism has two opposite movements for clamping paint bucket clamping output end, rotating mechanism has the rotating output end that can make paint bucket can automatically rotate when being clamped, vibration mechanism can make paint bucket vibrate when being clamped, the device can be in paint bucket liquid nitrogen treatment, can be automatically clamped to paint bucket, and can make paint bucket spin and vibrate, auxiliary cleaning, improve work efficiency.

Description

Technical Field

[0001] This invention relates to the field of paint bucket purification technology, specifically to a clamping and conveying mechanism for liquid nitrogen treatment of paint buckets. Background Technology

[0002] Liquid nitrogen is the liquefied state of nitrogen gas at -196℃, producing no pollution. Utilizing the extreme cold properties of liquid nitrogen, residual liquid paint on the inner wall of the paint can is frozen into a gel-like state in a very short time. In this low-temperature gel-like state, the volatile organic compounds inside the paint do not volatilize at all. Simultaneously, due to the difference in expansion coefficients between metal and paint, the gel-like paint film separates from the metal inner wall. At this point, a flexible, thin scraper can completely remove the paint film from the inside of the paint can, completing the separation of the paint can and the paint, leaving the paint can completely free of paint residue.

[0003] The aforementioned technology completely separates the paint from the paint bucket, allowing the paint bucket to be recycled and reused. Only the separated paint residue needs to be stored, transported, and incinerated. The volume and weight of the separated paint residue are less than one percent of the paint bucket. This significantly reduces the volume of hazardous waste storage facilities and the capacity of VOCs treatment equipment, significantly reduces the energy consumption of VOCs equipment operation, improves the efficiency of paint residue transportation, eliminates the paint bucket crushing and melting process, and significantly reduces incineration energy consumption.

[0004] In the paint bucket handling process, the paint buckets to be processed need to be transported to a designated location for cooling, scraping, or cleaning. Therefore, a transport clamping device that facilitates paint bucket handling is needed to assist in liquid nitrogen spraying and subsequent paint scraping, thereby improving processing efficiency. Summary of the Invention

[0005] Therefore, it is necessary to provide a clamping and conveying mechanism for liquid nitrogen treatment of paint buckets to address the problems of existing technologies.

[0006] To address the existing technical problems, the present invention adopts the following technical solution: a clamping and conveying mechanism for liquid nitrogen treatment of paint buckets, comprising a frame, a drive shaft mounted on the frame, a rotating ring coaxially fixed on the drive shaft, several inner rods arranged annularly along the axis of the rotating ring, and a transfer assembly. The transfer assembly includes a clamping mechanism, a rotating mechanism, and a vibration mechanism. The drive shaft is connected to an external drive source and can rotate at a fixed angle. The clamping mechanism includes a limiting ring plate fixed on the frame, an L-shaped frame connected to each inner rod, a first limiting box connected to each L-shaped frame, a second limiting box connected to one end of each first limiting box, a first adapter plate slidably mounted on the first limiting box, and an elastically slidably mounted on the second limiting box. The system comprises: a movable block, a second adapter plate fixedly connected to the movable block, a wheel frame positioned above the movable block and capable of moving with it, a rubber wheel rotatably mounted on the wheel frame, a first lifter mounted on the first adapter plate, a first clamping frame mounted on the output end of the first lifter, a first arc-shaped plate fixedly mounted on the first clamping frame, several driven rollers rotatably mounted on the first arc-shaped plate, a second lifter mounted on the second adapter plate, a second clamping frame mounted on the output end of the second lifter, a second arc-shaped plate fixedly mounted on the second clamping frame, and several driving rollers rotatably mounted on the second arc-shaped plate. The first lifter and the second lifter have the same structure. A limiting arc groove and a side are formed on the limiting ring plate. The groove, the limiting arc groove, and the side groove are all arc-shaped, with the side groove diameter larger than the limiting arc groove and the limiting arc groove length larger than the side groove length. The side groove is connected to the limiting arc groove. The rubber wheel rolls along the limiting arc groove. A sliding protrusion is fixedly provided at the bottom of the limiting ring plate. Each first limiting box is slidably disposed on the sliding protrusion. The rotating mechanism includes a first power storage device disposed on each second clamping frame, a transfer shaft rotatably disposed on the second clamping frame, a rotating shaft unidirectionally connected to the transfer shaft, and a first arc-shaped toothed plate fixedly disposed on the frame. The power input end of the first power storage device is drivenly connected to the first arc-shaped toothed plate, and the power output end of the first power storage device is drivenly connected to the transfer shaft. The rotating shaft is connected to each driving roller via... The vibration mechanism, connected by a transmission belt, includes a mounting base fixedly mounted on each of the second clamping frames, a swing rod hinged at one end to the mounting base, a striking hammer fixedly mounted on the other end of the swing rod, a deflector plate mounted on the swing rod, two support frames fixedly mounted symmetrically on the second clamping frames, a horizontal shaft rotatably mounted on the two support frames, a deflector disc coaxially fixed on the horizontal shaft, a second arc-shaped toothed plate fixedly mounted on the frame, and a second power storage device mounted on the horizontal shaft. The power input end of the second power storage device is drivenly connected to the second arc-shaped toothed plate, and the power output end of the second power storage device is drivenly connected to the horizontal shaft. The deflector disc is used to push the deflector plate to cause the swing rod to swing around the hinge point with the mounting base.

[0007] Furthermore, the clamping mechanism also includes an outer cylinder slidably sleeved on each inner rod, a threaded rod rotatably disposed in the first limiting box, an adapter block slidably disposed in the first limiting box, and a drive motor fixedly disposed on the first limiting box. The adapter block is threadedly connected to the threaded rod, the adapter block 31 is fixedly connected to the L-shaped frame and the first adapter plate, and the power output shaft of the drive motor is coaxially fixedly connected to the threaded rod.

[0008] Furthermore, the clamping mechanism also includes a transition rod fixedly mounted on the movable block, a return spring coaxially sleeved on the transition rod, a U-shaped frame fixedly mounted on the end of the transition rod, and an abutting roller rotatably mounted on the U-shaped frame. The abutting roller abuts against the side wall of the limiting ring plate. The wheel frame is fixedly connected to the U-shaped frame. The first lifter includes a sliding frame fixedly mounted on the first transition plate, a sliding plate slidably mounted on the sliding frame, and a telescopic cylinder fixedly mounted on the first transition plate. The output end of the telescopic cylinder is fixedly connected to the sliding plate. The first clamping frame is fixedly connected to the sliding plate. The sliding plate is the power output end of the first lifter.

[0009] Furthermore, the rotating mechanism also includes a first locking tooth coaxially fixed at the end of the connecting shaft and a second locking tooth coaxially fixed at the end of the rotating shaft, and a limiting spring coaxially sleeved on the connecting shaft. The connecting shaft has a limiting hole, and the connecting shaft cooperates with the limiting hole through a spline shaft. One end of the limiting spring is connected to the first locking tooth and the other end is connected to the connecting shaft. The first locking tooth and the second locking tooth engage in one direction.

[0010] Furthermore, both the first power storage device and the second power storage device include a housing and a spring disposed within the housing. The housing of the first power storage device is fixedly disposed within the second clamping frame, and the torque input end of the spring of the first power storage device is connected to the adapter shaft. The housing of the second power storage device is fixedly disposed on the support frame, and the torque input end of the spring of the second power storage device is connected to the horizontal shaft.

[0011] Furthermore, the first power storage device also includes a limiting shaft rotatably mounted on the second clamping frame and a rolling gear coaxially fixed on the limiting shaft. The limiting shaft and the adapter shaft are connected by a belt. The limiting shaft is the power output end of the first power storage device, and the rolling gear is the power input end of the first power storage device. The rolling gear meshes with the first arc-shaped toothed plate.

[0012] Furthermore, the second power storage device also includes a support plate fixedly mounted on the second clamping frame, a transmission gear rotatably mounted on the support plate, a limiting bracket fixedly mounted on the side of the support plate and fixedly connected to the second clamping frame, a bevel gear frame fixedly mounted on the limiting bracket, and a first bevel gear and a second bevel gear rotatably mounted on the bevel gear frame. The first bevel gear meshes with the second bevel gear, the transmission gear is connected to the first bevel gear via a belt, the transmission gear meshes with the second arc-shaped toothed plate, and the second bevel gear is coaxially fixedly connected to one end of the horizontal shaft. The transmission gear is the power input end of the second power storage device, and the second bevel gear is the power output end of the second power storage device.

[0013] Furthermore, the vibration mechanism also includes an extension rod fixedly mounted on the mounting base, an elastic connecting rod with one end hinged to the extension rod and the other end hinged to the swing rod, a limiting stop fixedly mounted on the swing rod, a trigger spring mounted on the actuating plate, and several contact blocks arranged in a ring along the axis of the actuating disc. The swing rod has an installation notch, and one end of the trigger spring is connected to the actuating plate and the other end is connected to the swing rod.

[0014] The beneficial effects of this invention compared to the prior art are:

[0015] Firstly, this device can clamp paint buckets of different diameters without the need to frequently change the clamping output end.

[0016] Secondly, this device uses a rotating mechanism to make the paint bucket rotate during liquid nitrogen spraying, resulting in more uniform liquid nitrogen spraying and improved production efficiency.

[0017] Thirdly, this device uses a vibration mechanism to make the paint bucket vibrate during the scraping process, which further improves the cleaning efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the embodiment. Figure 3 ;

[0021] Figure 4 This is a top view of the limiting disk in the embodiment;

[0022] Figure 5 This is a bottom view of the limiting disk in the embodiment;

[0023] Figure 6 This is a three-dimensional structural cross-sectional view of the embodiment;

[0024] Figure 7 This is a three-dimensional structural diagram of the device in the embodiment when it is not clamping the paint bucket;

[0025] Figure 8 This is a three-dimensional structural diagram of the second clamping frame in the embodiment;

[0026] Figure 9 This is a three-dimensional structural diagram of the rotation axis in the embodiment;

[0027] Figure 10 This is an exploded three-dimensional structural diagram of the adapter shaft and the rotating shaft in the embodiment;

[0028] Figure 11 This is a three-dimensional structural diagram of the vibration mechanism in the embodiment. Figure 1 ;

[0029] Figure 12 This is a three-dimensional structural diagram of the vibration mechanism in the embodiment. Figure 2 ,

[0030] Figure 13 This is an exploded three-dimensional structural diagram of the first and second limiting boxes;

[0031] Figure 14 yes Figure 6 Enlarged schematic diagram of the structure at point A in the middle.

[0032] The following are the labels in the diagram: 1. Support plate; 2. Transmission gear; 3. Limiting bracket; 4. Bevel gear frame; 5. First bevel gear; 6. Second bevel gear; 7. Mounting base; 8. Swing rod; 9. Striking hammer; 10. Mounting notch; 11. Actuating plate; 12. Trigger spring; 13. Limiting stop block; 14. Extension rod; 15. Elastic connecting rod; 16. Support frame; 17. Horizontal shaft; 18. Actuating disc; 19. Contact block; 20. Second power storage device; 21. Limiting ring plate; 22. Limiting arc groove; 23. Side groove; 24. Sliding convex strip; 25. First arc-shaped toothed plate; 26. Second arc-shaped toothed plate; 27. Outer cylinder; 28. L-shaped frame; 29. ​​First limiting box; 30. Threaded rod; 31. Adapter block; 32. First adapter plate; 33. First lifting device; 34. Sliding frame; 35. Sliding... 36. Plate; 37. Telescopic cylinder; 38. First clamping frame; 39. First arc-shaped plate; 40. Driven roller; 41. Drive motor; 42. Second limit box; 43. Movable block; 44. Adapter rod; 45. Return spring; 46. U-shaped frame; 47. Abutment roller; 48. Wheel frame; 49. Rubber wheel; 50. Second adapter plate; 51. Second clamping frame; 52. Driven roller; 54. First power storage device; 55. Adapter shaft; 56. Limiting hole; 57. Connecting shaft; 58. First locking tooth; 59. Second locking tooth; 60. Limiting spring; 61. Outer shell; 62. Spring spring; 63. Limiting rotating shaft; 64. Rolling gear; 65. Rotating shaft; 66. Second lifting device; 70. Frame; 71. Drive rotating shaft; 72. Rotating ring; 73. Inner rod. Detailed Implementation

[0033] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0034] refer to Figures 1 to 14 :

[0035] A clamping and conveying mechanism for liquid nitrogen treatment of paint buckets includes a frame 70, a drive shaft 71 mounted on the frame 70, a rotating ring 72 coaxially fixed on the drive shaft 71, several inner rods 73 arranged annularly along the axis of the rotating ring 72, and a transfer assembly. The transfer assembly includes a clamping mechanism, a rotating mechanism, and a vibration mechanism. The drive shaft 71 is connected to an external drive source and can rotate at a fixed angle. The clamping mechanism includes a limiting ring plate 21 fixedly mounted on the frame 70, an L-shaped frame 28 connected to each inner rod 73, a first limiting box 29 connected to each L-shaped frame 28, and a second limiting box 29 connected to one end of each first limiting box 29. Limiting box 41, first adapter plate 32 slidably disposed on first limiting box 29, movable block 42 elastically slidably disposed in second limiting box 41, second adapter plate 49 fixedly connected to movable block 42, wheel frame 47 disposed above movable block 42 and movable with movable block 42, rubber wheel 48 rotatably disposed on wheel frame 47, first lifter 33 disposed on first adapter plate 32, first clamping frame 37 disposed on output end of first lifter 33, first arc plate 38 fixedly disposed on first clamping frame 37, several driven rollers 39 rotatably disposed on first arc plate 38, and second adapter plate 49 disposed on second adapter plate 41. The second lifting device 66 on the connecting plate 49, the second clamping frame 50 set on the output end of the second lifting device 66, the second arc-shaped plate 51 fixedly set on the second clamping frame 50, and several driving rollers 52 rotatably set on the second arc-shaped plate 51, the first lifting device 33 has the same structure as the second lifting device 66, the limiting ring plate 21 has a limiting arc groove 22 and a side groove 23, the limiting arc groove 22 and the side groove 23 are both arc-shaped, the diameter of the side groove 23 is larger than that of the limiting arc groove 22, the length of the limiting arc groove 22 is larger than that of the side groove 23, the side groove 23 is connected to the limiting arc groove 22, the rubber wheel 48 rolls along the limiting arc groove 22, the limiting ring plate A sliding protrusion 24 is fixedly provided at the bottom of the 21, and each first limiting box 29 is slidably disposed on the sliding protrusion 24. The rotating mechanism includes a first power storage device 54 disposed on each second clamping frame 50, a converter shaft 55 rotatably disposed on the second clamping frame 50, a rotating shaft 65 unidirectionally rotatably connected to the converter shaft 55, and a first arc-shaped toothed plate 25 fixedly disposed on the frame 70. The power input end of the first power storage device 54 is drivenly connected to the first arc-shaped toothed plate 25, and the power output end of the first power storage device 54 is drivenly connected to the converter shaft 55. The rotating shaft 65 is connected to each driving roller 52 via a transmission belt.The vibration mechanism includes a mounting base 7 fixedly mounted on each of the second clamping frames 50, a swing rod 8 hinged at one end to the mounting base 7, a striking hammer 9 fixedly mounted on the other end of the swing rod 8, a deflector plate 11 mounted on the swing rod 8, two support frames 16 symmetrically fixedly mounted on the second clamping frames 50, a horizontal shaft 17 rotatably mounted on the two support frames 16, a deflector disc 18 coaxially fixed on the horizontal shaft 17, a second arc-shaped toothed plate 26 fixedly mounted on the frame 70, and a second power storage device 20 mounted on the horizontal shaft 17. The power input end of the second power storage device 20 is drivenly connected to the second arc-shaped toothed plate 26, and the power output end of the second power storage device 20 is drivenly connected to the horizontal shaft 17. The deflector disc 18 is used to push the deflector plate 11, causing the swing rod 8 to swing around the hinge point with the mounting base 7.

[0036] It should be noted that there are four inner rods 73 in this embodiment. The drive shaft 71 can drive the rotating ring 72 to rotate 45 degrees each time under the drive of the external power source. Below the two ends where the side groove 23 connects with the limiting arc groove 22, there are conveyor belts respectively. One is responsible for conveying the paint bucket to be processed, and the other is responsible for conveying the processed paint bucket (the opening of the paint bucket always faces downward). Below the two bisections of the limiting arc groove 22, there are liquid nitrogen spraying devices and scraping devices respectively. When the device treats the paint bucket with liquid nitrogen, the paint bucket to be treated is transported by the conveyor belt to the area below the limiting ring plate 21. At this time, the drive shaft 71 drives the rotating ring 72 to rotate, the rotating ring 72 drives the inner rod 73 to rotate, the inner rod 73 rotates and drives the L-shaped frame 28 to rotate, the L-shaped frame 28 drives the first limiting box 29 and the second limiting box 41 to move together. At this time, the first arc plate 38 and the second arc plate 51 rotate together. When they pass over the paint bucket to be treated, the rubber wheel 48 abuts against the side groove 23 and slides into the limiting arc groove 22, thereby causing the movable block 42 to move in the second limiting box 41, so that the second arc plate 51 approaches the first arc plate 38, thereby clamping the paint bucket to be treated on the conveyor belt. At this time, the outer wall of the paint bucket abuts against the driven roller 39 and the driving roller 52 respectively.

[0037] Then, the drive shaft 71 rotates, and the first arc plate 38 and the second arc plate 51 continue to rotate while clamping the paint bucket until they move above the liquid nitrogen spraying device. During this process, under the action of the first arc toothed plate 25, the first power storage device 54 is driven to run, causing the adapter shaft 55 to rotate. Since the adapter shaft 55 is unidirectionally engaged with the rotating shaft 65, the adapter shaft 55 will not rotate at this time. When ready to start liquid nitrogen spraying, the first lifter 33 and the second lifter 66 operate simultaneously, respectively driving the first clamping frame 37 and the second clamping frame 50 to move downwards to facilitate the liquid nitrogen spraying operation. During the process, the output end of the first power storage device 54 drives the adapter shaft 55 to reverse, and the reverse rotation of the adapter shaft 55 drives the rotating shaft 65 to rotate, causing all the active rollers 52 on the second arc plate 51 to rotate. The active rollers 52 abut against the wall of the paint bucket, causing the paint bucket to rotate between the first arc plate 38 and the second arc plate 51, so that the liquid nitrogen can be sprayed more evenly on the inner wall of the paint bucket, and the liquid nitrogen can fully mix and react with the paint residue on the paint bucket. Afterwards, the first lifter 33 and the second lifter 66 drive the paint bucket after being sprayed with liquid nitrogen back to the initial height.

[0038] When the paint bucket is clamped and moved above the scraping device, the second power storage unit 20 is driven to operate under the action of the second arc-shaped toothed plate 26. When the scraping work begins, the first lifting device 33 and the second lifting device 66 operate simultaneously, respectively driving the first clamping frame 37 and the second clamping frame 50 to move downwards to facilitate the scraping work. At the same time, the output end of the second power storage unit 20 drives the horizontal shaft 17 to rotate. The rotation of the horizontal shaft 17 drives the actuating disc 18 to rotate. The rotation of the actuating disc 18 abuts against the actuating plate 11, causing the swing rod 8 to rotate around the swing rod 8. The hinge of the mounting base 7 swings back and forth, causing the hammer 9 to strike the second clamping frame 50 repeatedly. This causes the paint bucket to vibrate during scraping, facilitating the removal of the solidified paint from the bucket wall. After the paint bucket is processed, the drive shaft 71 continues to rotate. At this time, the rubber wheel 48 slides from the limiting arc groove 22 into the side groove 23. The distance between the first arc plate 38 and the second arc plate 51 increases, causing the processed paint bucket to fall into the conveyor belt below and be transported away. This completes the liquid nitrogen treatment of the paint bucket. The device then repeats the above steps to continue processing the paint buckets to be cleaned.

[0039] In order for the device to clamp paint buckets of different diameters, the following features are specifically designed:

[0040] The clamping mechanism also includes an outer cylinder 27 that is slidably sleeved on each inner rod 73, a threaded rod 30 that is rotatably disposed in the first limiting box 29, a transition block 31 that is slidably disposed in the first limiting box 29, and a drive motor 40 that is fixedly disposed on the first limiting box 29. The transition block 31 is threadedly connected to the threaded rod 30, and the transition block 31 is fixedly connected to the L-shaped frame 28 and the first transition plate 32. The power output shaft of the drive motor 40 is coaxially fixedly connected to the threaded rod 30.

[0041] When the device is in operation, if it is necessary to process paint buckets of different diameters, the drive motor 40 drives the threaded rod 30 to rotate. The rotation of the threaded rod 30 drives the adapter block 31 to move within the first limit box 29, which in turn drives the first adapter plate 32 to move, so that the outer cylinder 27 moves on the inner rod 73. Finally, the distance between the first arc plate 38 and the second arc plate 51 is adjusted when the rubber wheel 48 slides within the limit arc groove 22, so that the device can clamp paint buckets of different diameters.

[0042] To demonstrate the structure of the first elevator 33 and the connection between the wheel frame 47 and the movable block 42, the following features are specifically provided:

[0043] The clamping mechanism also includes a converter rod 43 fixedly mounted on the movable block 42, a return spring 44 coaxially sleeved on the converter rod 43, a U-shaped frame 45 fixedly mounted on the end of the converter rod 43, and an abutting roller 46 rotatably mounted on the U-shaped frame 45. The abutting roller 46 abuts against the side wall of the limiting ring plate 21. The wheel frame 47 is fixedly connected to the U-shaped frame 45. The first lifter 33 includes a sliding frame 34 fixedly mounted on the first converter plate 32, a sliding plate 35 slidably mounted on the sliding frame 34, and a telescopic cylinder 36 fixedly mounted on the first converter plate 32. The output end of the telescopic cylinder 36 is fixedly connected to the sliding plate 35. The first clamping frame 37 is fixedly connected to the sliding plate 35. The sliding plate 35 is the power output end of the first lifter 33.

[0044] During device operation, the telescopic cylinder 36 drives the sliding plate 35 to move on the sliding frame 34. When the first lifter 33 operates, the corresponding sliding plate 35 drives the first clamping frame 37 to move. When the second lifter 66 operates, the corresponding sliding plate 35 drives the second clamping frame 50 to move. When the rubber wheel 48 moves from the limiting arc groove 22 to the side groove 23, the movable block 42 moves along the second limiting box 41. The movable block 42 drives the adapter rod 43 to move. Under the action of the return spring 44, the contact roller 46 can always move in close contact with the side wall of the limiting ring plate 21.

[0045] To demonstrate the unidirectional rotational connection between the adapter shaft 55 and the rotating shaft 65, the following features are specifically provided:

[0046] The rotating mechanism also includes a connecting shaft 57 that is slidably connected to the adapter shaft 55, a first locking tooth 58 that is coaxially fixed at the end of the connecting shaft 57, a second locking tooth 59 that is coaxially fixed at the end of the rotating shaft 65, and a limiting spring 60 that is coaxially sleeved on the connecting shaft 57. A limiting hole 56 is provided on the adapter shaft 55. The connecting shaft 57 cooperates with the limiting hole 56 through a spline shaft. One end of the limiting spring 60 is connected to the first locking tooth 58 and the other end is connected to the adapter shaft 55. The first locking tooth 58 and the second locking tooth 59 engage in one-way engagement.

[0047] When the adapter shaft 55 rotates, it drives the connecting shaft 57 to move. The connecting shaft 57 drives the first locking tooth 58 to rotate. The first locking tooth 58 and the second locking tooth 59 engage in one direction. At this time, under the action of the limit spring 60, the rotating shaft 65 will not be driven to rotate. The connecting shaft 57 will reciprocate within the limit hole 56. When the adapter shaft 55 is driven to reverse by the power output end of the first power storage device 54, the adapter shaft 55 drives the connecting shaft 57 to reverse. The reverse rotation of the connecting shaft 57 drives the first locking tooth 58 to reverse. At this time, the first locking tooth 58 engages with the second locking tooth 59, thereby driving the rotating shaft 65 to rotate.

[0048] To demonstrate the structure of the first power storage unit 54 and the second power storage unit 20 storing power, the following features are specifically provided:

[0049] Both the first power storage device 54 and the second power storage device 20 include a housing 61 and a spring 62 disposed within the housing 61. The housing 61 of the first power storage device 54 is fixedly disposed within the second clamping frame 50. The torque input end of the spring 62 of the first power storage device 54 is connected to the adapter shaft 55. The housing 61 of the second power storage device 20 is fixedly disposed on the support frame 16. The torque input end of the spring 62 of the second power storage device 20 is connected to the horizontal shaft 17.

[0050] When the first power storage device 54 stores power, the adapter shaft 55 compresses the spring 62. When the first power storage device 54 releases power, the spring 62 reverses the direction of the adapter shaft 55. Then, the adapter shaft 55 rotates the rotating shaft 65. When the second power storage device 20 stores power, the horizontal shaft 17 compresses the corresponding spring 62. When the second power storage device 20 releases power, the spring 62 rotates the horizontal shaft 17. Then, the rotation of the horizontal shaft 17 causes the hammer 9 to vibrate.

[0051] To demonstrate the connection structure between the first power storage unit 54 and the adapter shaft 55, the following features are specifically provided:

[0052] The first power storage device 54 also includes a limiting shaft 63 rotatably mounted on the second clamping frame 50 and a rolling gear 64 coaxially fixed on the limiting shaft 63. The limiting shaft 63 is connected to the adapter shaft 55 by a belt. The limiting shaft 63 is the power output end of the first power storage device 54, and the rolling gear 64 is the power input end of the first power storage device 54. The rolling gear 64 meshes with the first arc-shaped toothed plate 25.

[0053] When the device is running, the rolling gear 64 meshes with the first arc-shaped toothed plate 25 and rotates. The rolling gear 64 drives the adapter shaft 55 to rotate via the belt.

[0054] To demonstrate the connection structure between the second power storage unit 20 and the horizontal axis 17, the following features are specifically provided:

[0055] The second power storage device 20 also includes a support plate 1 fixedly mounted on the second clamping frame 50, a transmission gear 2 rotatably mounted on the support plate 1, a limiting bracket 3 fixedly mounted on the side of the support plate 1 and fixedly connected to the second clamping frame 50, a bevel gear frame 4 fixedly mounted on the limiting bracket 3, and a first bevel gear 5 and a second bevel gear 6 rotatably mounted on the bevel gear frame 4. The first bevel gear 5 and the second bevel gear 6 mesh with each other. The transmission gear 2 is connected to the first bevel gear 5 by a belt. The transmission gear 2 meshes with the second arc-shaped toothed plate 26. The second bevel gear 6 is coaxially fixedly connected to one end of the horizontal shaft 17. The transmission gear 2 is the power input end of the second power storage device 20, and the second bevel gear 6 is the power output end of the second power storage device 20. The transmission gear 2 is the power input end of the second power storage device 20.

[0056] When the transmission gear 2 meshes with the second arc-shaped toothed plate 26 and rotates, the transmission gear 2 drives the first bevel tooth 5 to rotate via the belt. The rotation of the first bevel tooth 5 meshes with the second bevel tooth 6, and the rotation of the second bevel tooth 6 drives the horizontal shaft 17 to rotate.

[0057] To demonstrate the detailed connection structure between the actuating disc 18 and the swing lever 8, the following features are specifically provided:

[0058] The vibration mechanism also includes an extension rod 14 fixedly mounted on the mounting base 7, an elastic connecting rod 15 with one end hinged to the extension rod 14 and the other end hinged to the swing rod 8, a limiting block 13 fixedly mounted on the swing rod 8, a trigger spring 12 mounted on the actuating plate 11, and several contact blocks 19 arranged in a ring along the axis of the actuating disc 18. A mounting notch 10 is provided on the swing rod 8, and one end of the trigger spring 12 is connected to the actuating plate 11 and the other end is connected to the swing rod 8.

[0059] When the rolling gear 64 drives the horizontal shaft 17 to rotate, the rotation of the horizontal shaft 17 drives the actuating disk 18 to rotate. The rotation of the actuating disk 18 drives several contact blocks 19 to rotate alternately. At this time, the actuating plate 11 is oscillated by the contact blocks 19, causing the trigger spring 12 to be compressed. At this time, the swing rod 8 does not flip. When the horizontal shaft 17 is reversed by the spring 62, the horizontal shaft 17 drives the actuating disk 18 to reverse. The reverse rotation of the actuating disk 18 causes several contact blocks 19 to reverse alternately. At this time, the contact blocks 19 touch the actuating plate 11, causing the swing rod 8 to flip up. Under the action of the elastic link 15, the swing rod 8 quickly returns to its original position, causing the hammer 9 to quickly strike the second clamping frame 50. As the actuating disk 18 continues to reverse, several contact blocks 19 successively touch the actuating plate 11, thereby causing the hammer 9 to continuously strike the second clamping frame 50 to generate vibration.

[0060] Working principle: When the device treats the paint bucket with liquid nitrogen, the paint bucket to be treated is transported by the conveyor belt to the area below the limiting ring plate 21. At this time, the drive shaft 71 drives the rotating ring 72 to rotate, the rotating ring 72 drives the inner rod 73 to rotate, the inner rod 73 rotates and drives the L-shaped frame 28 to rotate, the L-shaped frame 28 drives the first limiting box 29 and the second limiting box 41 to move together. At this time, the first arc plate 38 and the second arc plate 51 rotate together. When they pass over the paint bucket to be treated, the rubber wheel 48 abuts against the side groove 23 and slides into the limiting arc groove 22, thereby causing the movable block 42 to move in the second limiting box 41, so that the second arc plate 51 approaches the first arc plate 38, thereby clamping the paint bucket to be treated on the conveyor belt. At this time, the outer wall of the paint bucket abuts against the driven roller 39 and the driving roller 52 respectively.

[0061] Then, the drive shaft 71 rotates, and the first arc plate 38 and the second arc plate 51 continue to rotate while clamping the paint bucket until they move above the liquid nitrogen spraying device. During this process, under the action of the first arc toothed plate 25, the rolling gear 64 meshes with the first arc toothed plate 25 and rotates. The rolling gear 64 drives the adapter shaft 55 to rotate via a belt. Since the adapter shaft 55 and the rotating shaft 65 are only meshed in one direction, the adapter shaft 55 will not rotate at this time. At this time, the spring 62 is compressed. When preparing to start liquid nitrogen spraying, the first lifter 33 and the second lifter 66 operate simultaneously, respectively driving the first clamping frame 37 and the second clamping frame 50 to move downwards to facilitate the liquid nitrogen spraying operation. At this time, the rolling gear 64 no longer meshes with the first arc toothed plate 25. An arc-shaped toothed plate 25 engages, and a spring 62 releases torque to drive the adapter shaft 55 to reverse, which in turn drives the connecting shaft 57 to reverse, causing the first locking tooth 58 to reverse. The first locking tooth 58 engages with the second locking tooth 59, which in turn drives the rotating shaft 65 to rotate. The reverse rotation of the adapter shaft 55 drives the rotating shaft 65 to run, causing all the active rollers 52 on the second arc-shaped plate 51 to rotate. The active rollers 52 abut against the wall of the paint bucket, causing the paint bucket to rotate between the first arc-shaped plate 38 and the second arc-shaped plate 51, so that the liquid nitrogen can be sprayed more evenly on the inner wall of the paint bucket, and the liquid nitrogen can fully mix and react with the paint residue on the paint bucket. Afterwards, the first lifter 33 and the second lifter 66 drive the paint bucket after being sprayed with liquid nitrogen back to the initial height.

[0062] When the paint bucket is clamped and moved above the scraping device, during this process, the transmission gear 2 meshes with the second arc-shaped toothed plate 26 and rotates. The transmission gear 2 drives the first bevel gear 5 to rotate via the belt. The rotation of the first bevel gear 5 meshes with the second bevel gear 6 and rotates. The rotation of the second bevel gear 6 drives the horizontal shaft 17 to rotate. The rotation of the horizontal shaft 17 causes the spring 62 to be compressed. The horizontal shaft 17 also drives several contact blocks 19 to rotate alternately. At this time, the actuating plate 11 is oscillated by the contact blocks 19, causing the trigger spring 12 to be compressed. At this time, the swing rod 8 does not flip. When the scraping operation begins, the first lifter 33 and the second lifter 66 operate simultaneously, driving the first clamping frame 37 and the second clamping frame 50 to move downwards, facilitating the scraping operation. At the same time, the transmission gear 2 no longer meshes with the second arc-shaped toothed plate 26, and the spring 62 drives the horizontal shaft 17 to reverse. The horizontal shaft 17 drives the actuating disc 18 to reverse, and the reversal of the actuating disc 18 causes several contact blocks 19 to alternately reverse. At this time, the contact blocks 19 touch the actuating plate 11, causing the swing rod 8 to flip up. Under the action of the elastic connecting rod 15, the swing rod 8 quickly returns to its original position, causing the hammer 9 to quickly strike the second clamping frame 50. As the actuating disc 18 continues to reverse, several contact blocks 19 successively abut against the actuating plate 11, thereby causing the hammer 9 to continuously strike the second clamping frame 50, creating vibration. This causes the paint bucket to vibrate during scraping, allowing the solidified paint on the bucket wall to fall off quickly. After the paint bucket is processed, the drive shaft 71 continues to rotate. At this time, the rubber wheel 48 slides from the limiting arc groove 22 into the side groove 23. The distance between the first arc plate 38 and the second arc plate 51 increases, causing the processed paint bucket to fall into the conveyor belt below and be transported away. This completes the liquid nitrogen treatment of the paint bucket. The device then repeats the above steps to continue processing the paint buckets to be cleaned.

[0063] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A paint bucket liquid nitrogen treatment clamping and conveying mechanism characterized by, The device includes a frame (70), a drive shaft (71) mounted on the frame (70), a rotating ring (72) coaxially fixed on the drive shaft (71), several inner rods (73) arranged in a ring along the axis of the rotating ring (72), and a transfer assembly. The transfer assembly includes a clamping mechanism, a rotating mechanism, and a vibration mechanism. The drive shaft (71) is connected to an external drive source and can rotate at a certain angle. The clamping mechanism includes two clamping ends for clamping paint buckets of different diameters. The rotating mechanism includes a rotating output end for causing the paint bucket to rotate after being clamped. The vibration mechanism includes an output end for causing the paint bucket to vibrate. The clamping mechanism includes a limiting ring plate (21) fixedly mounted on the frame (70), an L-shaped frame (28) connected to each inner rod (73), a first limiting box (29) connected to each L-shaped frame (28), a second limiting box (41) connected to one end of each first limiting box (29), a first adapter plate (32) slidably mounted on the first limiting box (29), a movable block (42) elastically slidably mounted in the second limiting box (41), a second adapter plate (49) fixedly connected to the movable block (42), a wheel frame (47) mounted above the movable block (42) and capable of moving with the movable block (42), and a rotatable mounting. The components include: a rubber wheel (48) on a wheel frame (47); a first lifter (33) on a first adapter plate (32); a first clamping frame (37) on the output end of the first lifter (33); a first arc-shaped plate (38) fixedly mounted on the first clamping frame (37); several driven rollers (39) rotatably mounted on the first arc-shaped plate (38); a second lifter (66) on a second adapter plate (49); a second clamping frame (50) on the output end of the second lifter (66); a second arc-shaped plate (51) fixedly mounted on the second clamping frame (50); and several driven rollers (39) rotatably mounted on the second arc-shaped plate (51). The active roller (52) on 51), the first lifting device (33) and the second lifting device (66) have the same structure, the limiting ring plate (21) has a limiting arc groove (22) and a side groove (23), the limiting arc groove (22) and the side groove (23) are both arc-shaped and the diameter of the side groove (23) is larger than that of the limiting arc groove (22), the length of the limiting arc groove (22) is larger than that of the side groove (23), the side groove (23) is connected to the limiting arc groove (22), the rubber wheel (48) rolls along the limiting arc groove (22), the bottom of the limiting ring plate (21) is fixedly provided with a sliding protrusion (24), each first limiting box (29) slides The rotating mechanism is mounted on the sliding protrusion (24) and includes a first power storage device (54) mounted on each second clamping frame (50), a transfer shaft (55) rotatably mounted on the second clamping frame (50), a rotating shaft (65) unidirectionally connected to the transfer shaft (55), and a first arc-shaped toothed plate (25) fixedly mounted on the frame (70). The power input end of the first power storage device (54) is drivenly connected to the first arc-shaped toothed plate (25), and the power output end of the first power storage device (54) is drivenly connected to the transfer shaft (55). The rotating shaft (65) is connected to each driving roller (52) via a transmission belt.The vibration mechanism includes a mounting base (7) fixedly mounted on each second clamping frame (50), a swing rod (8) hinged to the mounting base (7) at one end, a hammer (9) fixedly mounted on the other end of the swing rod (8), a deflector plate (11) mounted on the swing rod (8), two support frames (16) fixedly mounted symmetrically on the second clamping frame (50), a horizontal shaft (17) rotatably mounted on the two support frames (16), a deflector disc (18) coaxially fixed on the horizontal shaft (17), a second arc-shaped toothed plate (26) fixedly mounted on the frame (70), and a deflector disc (18) mounted on the horizontal shaft (17). 7) The second power storage device (20) is connected to the second arc-shaped toothed plate (26) via a drive connection at its power input end and to the horizontal shaft (17) via a drive connection at its power output end. The actuating disc (18) is used to push the actuating plate (11) to cause the swing rod (8) to swing around the hinge point with the mounting base (7). The first arc-shaped plate (38) and the second arc-shaped plate (51) are the clamping ends of the clamping mechanism. The driving roller (52) is the rotation output end of the rotating mechanism. The striking hammer (9) is the output end of the vibration mechanism that generates vibration.

2. The paint bucket liquid nitrogen treatment gripping and conveying mechanism according to claim 1, characterized in that, The clamping mechanism also includes an outer cylinder (27) slidably sleeved on each inner rod (73), a threaded rod (30) rotatably disposed in the first limiting box (29), a transition block (31) slidably disposed in the first limiting box (29), and a drive motor (40) fixedly disposed on the first limiting box (29). The transition block (31) is threadedly connected to the threaded rod (30), and the transition block (31) is fixedly connected to the L-shaped frame (28) and the first transition plate (32). The power output shaft of the drive motor (40) is coaxially fixedly connected to the threaded rod (30).

3. The paint bucket liquid nitrogen processing gripping and conveying mechanism according to claim 1, characterized in that, The clamping mechanism further includes a transition rod (43) fixedly mounted on the movable block (42), a return spring (44) coaxially sleeved on the transition rod (43), a U-shaped frame (45) fixedly mounted on the end of the transition rod (43), and an abutment roller (46) rotatably mounted on the U-shaped frame (45). The abutment roller (46) abuts against the side wall of the limiting ring plate (21). The wheel frame (47) is fixedly connected to the U-shaped frame (45). The first lifting device ( 33) includes a sliding frame (34) fixedly mounted on the first adapter plate (32), a sliding plate (35) slidably mounted on the sliding frame (34), and a telescopic cylinder (36) fixedly mounted on the first adapter plate (32). The output end of the telescopic cylinder (36) is fixedly connected to the sliding plate (35), and the first clamping frame (37) is fixedly connected to the sliding plate (35). The sliding plate (35) is the power output end of the first lifter (33).

4. The paint can liquid nitrogen treatment gripping and conveying mechanism according to claim 1, characterized in that, The rotating mechanism also includes a connecting shaft (57) coaxially and slidably connected to the adapter shaft (55), a first locking tooth (58) coaxially fixed at the end of the connecting shaft (57), a second locking tooth (59) coaxially fixed at the end of the rotating shaft (65), and a limiting spring (60) coaxially sleeved on the connecting shaft (57). A limiting hole (56) is provided on the adapter shaft (55). The connecting shaft (57) is engaged with the limiting hole (56) through a spline shaft. One end of the limiting spring (60) is connected to the first locking tooth (58) and the other end is connected to the adapter shaft (55). The first locking tooth (58) and the second locking tooth (59) engage in one direction.

5. The paint can liquid nitrogen treatment gripping and conveying mechanism according to claim 1, characterized in that, The first power storage device (54) and the second power storage device (20) both include a housing (61) and a spring (62) disposed in the housing (61). The housing (61) of the first power storage device (54) is fixedly disposed in the second clamping frame (50). The torque input end of the spring (62) of the first power storage device (54) is connected to the adapter shaft (55). The housing (61) of the second power storage device (20) is fixedly disposed on the support frame (16). The torque input end of the spring (62) of the second power storage device (20) is connected to the horizontal shaft (17).

6. The paint can liquid nitrogen treatment gripping and conveying mechanism according to claim 1, characterized in that, The first power storage device (54) further includes a limiting shaft (63) rotatably mounted on the second clamping frame (50) and a rolling gear (64) coaxially fixed on the limiting shaft (63). The limiting shaft (63) is connected to the adapter shaft (55) by a belt. The limiting shaft (63) is the power output end of the first power storage device (54), and the rolling gear (64) is the power input end of the first power storage device (54). The rolling gear (64) meshes with the first arc-shaped toothed plate (25).

7. The paint can liquid nitrogen treatment gripping and conveying mechanism according to claim 1, characterized in that, The second power storage device (20) further includes a support plate (1) fixedly mounted on the second clamping frame (50), a transmission gear (2) rotatably mounted on the support plate (1), a limiting bracket (3) fixedly mounted on the side of the support plate (1) and fixedly connected to the second clamping frame (50), a bevel gear frame (4) fixedly mounted on the limiting bracket (3), and a first bevel gear (5) and a second bevel gear (6) rotatably mounted on the bevel gear frame (4). The first bevel gear (5) meshes with the second bevel gear (6). The transmission gear (2) is connected to the first bevel gear (5) by a belt. The transmission gear (2) meshes with the second arc-shaped tooth plate (26). The second bevel gear (6) is coaxially fixedly connected to one end of the horizontal shaft (17). The transmission gear (2) is the power input end of the second power storage device (20), and the second bevel gear (6) is the power output end of the second power storage device (20).

8. The clamping and conveying mechanism for liquid nitrogen treatment of paint buckets according to claim 1, characterized in that, The vibration mechanism also includes an extension rod (14) fixedly mounted on the mounting base (7), an elastic connecting rod (15) with one end hinged to the extension rod (14) and the other end hinged to the swing rod (8), a limiting block (13) fixedly mounted on the swing rod (8), a trigger spring (12) mounted on the actuating plate (11), and several contact blocks (19) arranged in a ring along the axis of the actuating disc (18). The swing rod (8) has an installation notch (10), and one end of the trigger spring (12) is connected to the actuating plate (11) and the other end is connected to the swing rod (8).

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