A positioning detection mechanism

By designing automated cap-opening and filling equipment and using a positioning and detection mechanism to automatically position the oil drum opening, the high cost and low efficiency problems caused by manual operation in existing technologies have been solved, realizing automated and efficient production of paint thinner filling.

CN224677789UActive Publication Date: 2026-08-25GUANGDONG SHUNDE QIAOTU MECHANICAL ENG CO LTD
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Patent Information

Application Number
CN202522042084.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-22
Publication Date
2026-08-25
Estimated Expiration
2035-09-22

AI Technical Summary

Technical Problem

The current paint thinner filling process requires manual rotation of the oil drum and the use of a positioning rod, resulting in high labor costs, low production efficiency, and high labor expenditure.

Method used

Design a cap-opening and filling device that includes a frame, a conveying mechanism, a positioning and detection mechanism, a rotating mechanism, and a cap-opening and filling mechanism. The positioning and detection mechanism automatically positions the oil drum opening, achieving automated cap opening and filling without manual operation.

Benefits of technology

It reduces labor costs, improves filling production efficiency, enhances the automation level of equipment, and is suitable for large-scale production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to filling equipment technical field especially, and it is a kind of positioning detection mechanism;The positioning detection mechanism includes first positioning device and second positioning device, and first positioning device and second positioning device are respectively screwed on rack, and first positioning device is used to carry out first positioning detection to oil drum mouth, and second positioning device is used to carry out second positioning detection to oil drum mouth;Compared with prior art, the utility model is positioned by being equipped with positioning detection mechanism, in the process that rotary mechanism drives oil drum rotation, the position of oil drum mouth can be effectively positioned by positioning detection mechanism, and then it is convenient for uncapping filling mechanism to carry out uncapping filling operation;In the process, manual operation is not needed, and then greatly reduce the labor cost, and the automation degree of the equipment is higher, can greatly improve the production efficiency of filling, also be conducive to the large-scale production of enterprise.
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Description

Technical Field

[0001] This utility model relates to the field of filling equipment technology, and in particular to a positioning and detection mechanism. Background Technology

[0002] Paint thinner is a liquid solvent used to reduce the viscosity of paint and improve its flowability. It is mainly divided into two categories: active and inactive. Its functions include adjusting the consistency of the paint during application, improving coating adhesion, and cleaning oil stains from parts. Its composition must be compatible with the type of paint. Common types include hydrocarbons (toluene, xylene), esters (ethyl acetate), ketones (acetone), alcohols (ethanol), and alcohol ether solvents.

[0003] Currently, the existing paint thinner filling process generally requires manual rotation of the oil drum and the use of a positioning rod to position the inlet pipe and the oil drum inlet (one end of the positioning rod can be inserted into the inlet pipe and the other end into the oil drum inlet), so that the oil drum inlet is aligned with the inlet pipe. However, this process involves high labor costs and significantly increases labor expenses. Moreover, the positioning process is time-consuming, leading to reduced production efficiency. Based on this, we propose a positioning detection mechanism. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a cap-opening filling device, which, after development, can effectively solve the problems mentioned in the background technology.

[0005] The technical solution of this utility model is as follows:

[0006] A cap-opening and filling device includes a frame, a conveying mechanism, a positioning and detection mechanism, a rotating mechanism, and a cap-opening and filling mechanism; the conveying mechanism is screwed to the inner bottom of the frame, the rotating mechanism is screwed to the lower inner part of the frame and above the conveying mechanism, the positioning and detection mechanism is screwed to the upper inner part of the frame and above the rotating mechanism, and the cap-opening and filling mechanism is screwed to the top inner part of the frame and above the positioning and detection mechanism.

[0007] The conveying mechanism includes a first conveying device and a second weighing conveying device. The first conveying device and the second weighing conveying device are respectively screwed onto the frame. The first conveying device is used to drive the oil drum to be conveyed to the second weighing conveying device.

[0008] The rotating mechanism includes an active rotating device and a driven rotating device, which are respectively screwed onto the frame and arranged opposite to each other. The active rotating device includes an active driving device and an active wheel, and the moving end of the active driving device is drivenly connected to the active wheel. The driven rotating device includes a driven driving device and a driven wheel, and the moving end of the driven driving device is drivenly connected to the driven wheel.

[0009] The positioning detection mechanism includes a first positioning device and a second positioning device, which are respectively screwed onto the frame. The first positioning device is used to perform a first positioning detection on the mouth of the oil drum, and the second positioning device is used to perform a second positioning detection on the mouth of the oil drum.

[0010] The cap-opening and filling mechanism includes a moving device, a cap-opening device, an insertion device, and a filling device. The moving device is screwed onto the frame, and a mounting bracket is screwed onto the moving end of the moving device. The cap-opening device, the insertion device, and the filling device are screwed onto the mounting bracket respectively. The cap-opening device is used to open the oil drum cap, the insertion device is used to detect the insertion hole at the mouth of the oil drum, and the filling device is used to fill the oil drum with paint.

[0011] Furthermore, the first conveying device includes a first fixed frame, a first drive motor, and a first roller. A plurality of first rollers are rotatably connected to the inner top of the first fixed frame. The plurality of first rollers are connected to each other by chain drive. The shaft end of the first drive motor is drively connected to one of the first rollers. The first drive motor is screwed onto the outer surface of the first fixed frame.

[0012] Furthermore, the second weighing and conveying device includes a second fixed frame, a second drive motor, a second roller, and a weighing sensor. The weighing sensor is screwed to the inner bottom of the frame, and the other end of the weighing sensor is screwed to the second fixed frame. A plurality of second rollers are rotatably connected to the inner top of the second fixed frame. The plurality of second rollers are connected to each other by chain drive. The shaft end of the second drive motor is drively connected to one of the second rollers. The second drive motor is screwed to the outer surface of the second fixed frame.

[0013] Furthermore, the first fixing frame and the second fixing frame are positioned close to each other but not in contact, and the top surfaces of the first roller and the second roller are flush.

[0014] Furthermore, the active drive device includes a first mounting plate, a first push cylinder, a first slide rail, a first slide plate, a first motor, a first reducer, a first pulley, a second pulley, a tensioning pulley, and a second mounting plate. The first mounting plate is screwed onto the frame. The top surface of the first mounting plate has two ends screwed with the first slide rail. The moving end of the first slide rail is slidably connected to the first slide plate. The top surface of the first mounting plate also has two ends screwed with the first push cylinder. The push rod end of the first push cylinder is screwed and fixed to the front end of the first slide plate. The top surface of the first slide plate has the first motor and the first reducer screwed on. The moving end of the first motor is driven by the first reducer. The moving end of the first reducer is driven by the first pulley. The top surface of the first slide plate also has the second mounting plate screwed on via a connecting block. The second mounting plate also has the second pulley and the tensioning pulley rotatably connected. The first pulley is driven by the tensioning pulley and the second pulley in sequence via a belt. The moving end of the second pulley is driven by the drive pulley, and the other end of the second pulley is rotatably connected to the first slide plate.

[0015] Furthermore, the driven device includes a third mounting plate, a first rotating column, a second rotating column, a first rotating gear, a second rotating gear, a first extension frame, a second extension frame, a first connecting column, a second connecting column, and a second pushing cylinder. The third mounting plate is screwed onto the frame. The first rotating column and the second rotating column are rotatably connected inside the third mounting plate. The first rotating gear and the second rotating gear are welded to the outer sides of the first rotating column and the second rotating column, respectively. The first rotating gear and the second rotating gear are meshed together. The upper and lower ends of the first rotating column and the second rotating column are screwed onto the first extension frame and the second extension frame, respectively. The first connecting column and the second connecting column are screwed onto the first extension frame and the second connecting column, respectively. The second pushing cylinder is screwed onto the second connecting column. The push rod end of the second pushing cylinder is screwed and fixed to the first connecting column. The front ends of the first extension frame and the second extension frame are rotatably connected to driven wheels.

[0016] Furthermore, the first positioning device includes a fourth mounting plate, a third push cylinder, a first connecting block, a first moving block, a first roller, a first proximity switch, a first reset rod, and a first reset spring. The fourth mounting plate is screwed onto the frame, and the third push cylinder is screwed onto the fourth mounting plate. The push rod end of the third push cylinder is screwed onto the first connecting block, which is rotatably connected to the first moving block. Both ends of the bottom of the first moving block are rotatably connected to the first roller. The first proximity switch and the first reset rod are also screwed onto the first connecting block, and the first reset spring is welded onto the first reset rod. The other end of the first reset spring is welded and fixed to the first moving block.

[0017] Furthermore, the second positioning device includes a fifth mounting plate, a fourth push cylinder, a second connecting block, a first lifting cylinder, a third connecting block, a second moving block, a second roller, a second proximity switch, a second reset rod, and a second reset spring. The fifth mounting plate is screwed onto the frame. The fourth push cylinder is screwed onto the fifth mounting plate. The push rod end of the fourth push cylinder is screwed onto the second connecting block. The other side of the second connecting block is screwed onto the first lifting cylinder. The push rod end of the first lifting cylinder is screwed onto the third connecting block. The third connecting block is rotatably connected to the second moving block. The bottom ends of the second moving block are rotatably connected to the second rollers. The third connecting block is also screwed onto the second proximity switch and the second reset rod. The second reset spring is welded onto the second reset rod. The other end of the second reset spring is welded and fixed to the second moving block.

[0018] Furthermore, the moving device includes a fifth push cylinder, an elbow block, and a second slide rail. The fifth push cylinder and the second slide rail are respectively screwed onto the frame. The push rod end of the fifth push cylinder is screwed with an elbow block, and the other end of the elbow block is screwed and fixed to the mounting frame. The mounting frame is slidably connected to the second slide rail via a slider.

[0019] Furthermore, the opening device includes a second lifting cylinder, a first fixed plate, a third slide rail, a second motor, a pressure column, a sixth pushing cylinder, a pressure block, a retaining ring, a compression spring, a fourth connecting block, a connecting rod, and a locking block; the front end face of the mounting bracket is screwed with the second lifting cylinder and the third slide rail respectively, the third slide rail is slidably connected to the first fixed plate, the push rod end of the second lifting cylinder is screwed to the first fixed plate through the connecting block, the front end face of the first fixed plate is screwed with the second motor through the connecting block, and the output shaft end of the second motor is screwed with a pressure column. The first fixed plate has a sixth push cylinder screwed to its front end via a connecting block. The push rod end of the sixth push cylinder is screwed to a pressure block, which is sleeved on the pressure column. A retaining ring is sleeved on the outside of the pressure column and below the pressure block. A fourth connecting block is screwed to the outside of the pressure column and below the retaining ring. A compression spring is welded to the outside of the pressure column and between the retaining ring and the fourth connecting block. Several connecting rods are hinged to the end of the retaining ring. The other end of each of the connecting rods is hinged to a retaining block. The lateral end of the retaining block is hinged to the fourth connecting block.

[0020] Furthermore, the insertion device includes a third lifting cylinder and a pressure head. The third lifting cylinder is screwed onto the front end face of the mounting bracket, and the pressure head is screwed onto the push rod end of the third lifting cylinder.

[0021] Furthermore, the filling device includes an electric slide, a fifth connecting block, a fourth lifting cylinder, a switch rod, a plug, a liquid inlet pipe, and a liquid inlet connecting pipe. The front end of the mounting frame is screwed with an electric slide, and the moving end of the electric slide is slidably connected to the fifth connecting block. The front end of the fifth connecting block is screwed with the fourth lifting cylinder and the liquid inlet pipe. The push rod end of the fourth lifting cylinder is screwed with a switch rod, and the other end of the switch rod is inserted into the liquid inlet pipe and passed through the liquid inlet pipe to be screwed with a plug. The plug abuts against the bottom of the liquid inlet pipe. One side end of the liquid inlet pipe is welded with a liquid inlet connecting pipe, and the liquid inlet connecting pipe is connected to the liquid inlet pipe.

[0022] The beneficial effects of this utility model are as follows:

[0023] Compared with the prior art, this utility model has a positioning detection mechanism that can effectively locate the position of the oil drum opening during the rotation of the oil drum driven by the rotating mechanism, thereby facilitating the opening and filling operation of the filling mechanism. During the process, no manual operation is required, which greatly reduces labor costs. Moreover, the equipment has a high degree of automation, which can greatly improve the filling production efficiency and is also conducive to large-scale production by enterprises. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a structural schematic diagram of another aspect of the present invention;

[0026] Figure 3 This is a schematic diagram of the driven rotation device of this utility model;

[0027] Figure 4 This is a schematic diagram of the active rotation device of this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the active rotation device of this utility model from another side.

[0029] Figure 6 This is a bottom view of the structure of the second weighing and conveying device of this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of the first positioning device of this utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the second positioning device of this utility model;

[0032] Figure 9 This is a schematic diagram of the cap-opening and filling mechanism of this utility model.

[0033] In the diagram, 1. Conveying mechanism; 2. Positioning and detection mechanism; 3. Rotating mechanism; 4. Cap opening and filling mechanism; 5. First conveying device; 6. Second weighing and conveying device; 7. Active rotating device; 8. Driven rotating device; 9. Active drive device; 10. Driven wheel; 11. Driven drive device; 12. Driven wheel; 13. First positioning device; 14. Second positioning device; 15. Moving device; 16. Cap opening device; 17. Insertion device; 18. Filling device; 19. Mounting frame; 20. First fixed frame; 21. First drive motor 22. First roller; 23. Second fixed frame; 24. Second drive motor; 25. Second roller; 26. Weighing sensor; 27. First mounting plate; 28. First push cylinder; 29. ​​First slide rail; 30. First slide plate; 31. First motor; 32. First reducer; 33. First pulley; 34. Second pulley; 35. Tensioner; 36. Second mounting plate; 37. Third mounting plate; 38. First rotating column; 39. Second rotating column; 40. First rotating gear; 41. Second rotating gear; 42. First extension... 43. Second tensioning frame; 44. First connecting column; 45. Second connecting column; 46. Second push cylinder; 47. Fourth mounting plate; 48. Third push cylinder; 49. First connecting block; 50. First moving block; 51. First roller; 52. First proximity switch; 53. First reset rod; 54. Fifth mounting plate; 55. Fourth push cylinder; 56. Second connecting block; 57. First lifting cylinder; 58. Third connecting block; 59. Second moving block; 60. Second roller; 61. Second proximity switch; 62. Fifth... 63. Push cylinder; 64. Elbow block; 65. Second slide rail; 66. Second lifting cylinder; 67. First fixing plate; 68. Third slide rail; 69. Second motor; 70. Pressure column; 71. Sixth push cylinder; 72. Pressure block; 73. Snap ring; 74. Compression spring; 75. Fourth connecting block; 76. Connecting rod; 77. Locking block; 78. Third lifting cylinder; 79. Pressure head; 80. Electric slide table; 81. Fifth connecting block; 82. Fourth lifting cylinder; 83. Switch rod; 84. Plug; 85. Liquid inlet pipe; 86. Liquid inlet connecting pipe. Detailed Implementation

[0034] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0035] like Figure 1-9 As shown,

[0036] A cap-opening filling device includes a frame (not shown in the figure), a conveying mechanism 1, a positioning detection mechanism 2, a rotating mechanism 3, and a cap-opening filling mechanism 4. The conveying mechanism 1 is screwed to the inner bottom of the frame; the rotating mechanism 3 is screwed to the lower inner part of the frame above the conveying mechanism 1; the positioning detection mechanism 2 is screwed to the upper inner part of the frame above the rotating mechanism 3; and the cap-opening filling mechanism 4 is screwed to the top inner part of the frame above the positioning detection mechanism 2. The conveying mechanism 1 includes a first conveying device 5 and a second weighing conveying device 6, which are respectively screwed onto the frame. The first conveying device 5 drives the oil drum to be conveyed onto the second weighing conveying device 6. The rotating mechanism 3 includes a driving rotating device 7 and a driven rotating device 8, which are respectively screwed onto the frame and arranged opposite to each other. The driving rotating device 7 includes a driving drive device 9 and a driving wheel 10. The moving end of the driving drive device 9 is connected to a transmission mechanism. The driving wheel 10; the driven rotating device 8 includes a driven driving device 11 and a driven wheel 12, with the driven wheel 12 being driven to the moving end of the driven driving device 11; the positioning detection mechanism 2 includes a first positioning device 13 and a second positioning device 14, which are respectively screwed onto the frame. The first positioning device 13 is used for the first positioning detection of the oil drum opening, and the second positioning device 14 is used for the second positioning detection of the oil drum opening; the opening-cap filling... The filling mechanism 4 includes a moving device 15, a cap opening device 16, an insertion device 17, and a filling device 18. The moving device 15 is screwed onto the frame, and a mounting bracket 19 is screwed onto the moving end of the moving device 15. The cap opening device 16, the insertion device 17, and the filling device 18 are screwed onto the mounting bracket 19. The cap opening device 16 is used to open the oil drum cap, the insertion device 17 is used to detect the insertion hole at the mouth of the oil drum, and the filling device 18 is used to fill the oil drum with paint.

[0037] In a preferred embodiment, the first conveying device 5 includes a first fixed frame 20, a first drive motor 21, and a first roller 22. A plurality of first rollers 22 are rotatably connected to the inner top of the first fixed frame 20. The plurality of first rollers 22 are connected to each other by chain drive. The shaft end of the first drive motor 21 is drively connected to one of the first rollers 22. The first drive motor 21 is screwed onto the outer surface of the first fixed frame 20.

[0038] In a preferred embodiment, the second weighing and conveying device 6 includes a second fixed frame 23, a second drive motor 24, a second roller 25, and a weighing sensor 26. The weighing sensor 26 is screwed to the inner bottom of the frame, and the other end of the weighing sensor 26 is screwed to the second fixed frame 23. A plurality of second rollers 25 are rotatably connected to the inner top of the second fixed frame 23. The plurality of second rollers 25 are connected to each other by chain drive. The shaft end of the second drive motor 24 is drively connected to one of the second rollers 25. The second drive motor 24 is screwed to the outer surface of the second fixed frame 23.

[0039] In a preferred embodiment, the first fixing frame 20 and the second fixing frame 23 are positioned close to each other but not in contact, and the top surface of the first roller 22 and the top surface of the second roller 25 are flush.

[0040] In a preferred embodiment, the active drive device 9 includes a first mounting plate 27, a first push cylinder 28, a first slide rail 29, a first slide plate 30, a first motor 31, a first reducer 32, a first pulley 33, a second pulley 34, a tensioning wheel 35, and a second mounting plate 36. The first mounting plate 27 is screwed onto the frame. The first slide rail 29 is screwed to both ends of the top surface of the first mounting plate 27. The moving end of the first slide rail 29 is slidably connected to the first slide plate 30. The first push cylinder 28 is also screwed to both ends of the top surface of the first mounting plate 27. The push rod end of the first push cylinder 28 is screwed and fixed to the front end of the first slide plate 30. A first motor 31 and a first reducer 32 are screwed onto the top surface of the first slide plate 30. The moving end of the first motor 31 is connected to the first reducer 32. The moving end of the first reducer 32 is connected to the first pulley 33. A second mounting plate 36 is also screwed onto the top surface of the first slide plate 30 via a connecting block. A second pulley 34 and a tensioning pulley 35 are rotatably connected to the second mounting plate 36. The first pulley 33 is connected to the tensioning pulley 35 and the second pulley 34 in sequence via a belt. The moving end of the second pulley 34 is connected to the drive pulley 10. The other end of the second pulley 34 is rotatably connected to the first slide plate 30.

[0041] In a preferred embodiment, the driven device 11 includes a third mounting plate 37, a first rotating column 38, a second rotating column 39, a first rotating gear 40, a second rotating gear 41, a first extension frame 42, a second extension frame 43, a first connecting column 44, a second connecting column 45, and a second pushing cylinder 46. The third mounting plate 37 is screwed onto the frame. The first rotating column 38 and the second rotating column 39 are rotatably connected inside the third mounting plate 37. The first rotating gear 40 and the second rotating gear 41 are welded to the outer sides of the first rotating column 38 and the second rotating column 39, respectively. The first rotating gear 40 and the second rotating gear 41 are meshed together. The upper and lower ends of the first rotating column 38 and the second rotating column 39 are respectively screwed with the first stretching frame 42 and the second stretching frame 43. The first stretching frame 42 and the second stretching frame 43 are respectively screwed with the first connecting column 44 and the second connecting column 45. The second pushing cylinder 46 is screwed with the second connecting column 45. The push rod end of the second pushing cylinder 46 is screwed and fixed to the first connecting column 44. The front ends of the first stretching frame 42 and the second stretching frame 43 are rotatably connected with the driven wheel 12.

[0042] In a preferred embodiment, the first positioning device 13 includes a fourth mounting plate 47, a third push cylinder 48, a first connecting block 49, a first moving block 50, a first roller 51, a first proximity switch 52, a first reset rod 53, and a first reset spring (not shown in the figure). The fourth mounting plate 47 is screwed onto the frame. The third push cylinder 48 is screwed onto the fourth mounting plate 47. The push rod end of the third push cylinder 48 is screwed onto the first connecting block 49. The first moving block 50 is rotatably connected to the first connecting block 49. The first roller 51 is rotatably connected to both ends of the bottom of the first moving block 50. The first proximity switch 52 and the first reset rod 53 are also screwed onto the first connecting block 49. The first reset spring is welded onto the first reset rod 53. The other end of the first reset spring is welded and fixed to the first moving block 50.

[0043] In a preferred embodiment, the second positioning device 14 includes a fifth mounting plate 54, a fourth push cylinder 55, a second connecting block 56, a first lifting cylinder 57, a third connecting block 58, a second moving block 59, a second roller 60, a second proximity switch 61, a second reset rod (not shown in the figure), and a second reset spring (not shown in the figure). The fifth mounting plate 54 is screwed onto the frame. The fourth push cylinder 55 is screwed onto the fifth mounting plate 54. The push rod end of the fourth push cylinder 55 is screwed onto the second connecting block 56. The other side of the second connecting block 56 is screwed onto the first lifting cylinder 57. The push rod end of the first lifting cylinder 57 is screwed onto the third connecting block 58. The third connecting block 58 is rotatably connected to the second moving block 59. The bottom ends of the second moving block 59 are rotatably connected to the second roller 60. The third connecting block 58 is also screwed onto the second proximity switch 61 and the second reset rod. The second reset spring is welded onto the second reset rod. The other end of the second reset spring is welded and fixed to the second moving block 59.

[0044] In a preferred embodiment, the moving device 15 includes a fifth push cylinder 62, an elbow block 63, and a second slide rail 64. The fifth push cylinder 62 and the second slide rail 64 are respectively screwed onto the frame. The push rod end of the fifth push cylinder 62 is screwed with the elbow block 63, and the other end of the elbow block 63 is screwed and fixed to the mounting frame 19. The mounting frame 19 is slidably connected to the second slide rail 64 through a slider.

[0045] In a preferred embodiment, the cover opening device 16 includes a second lifting cylinder 65, a first fixing plate 66, a third slide rail 67, a second motor 68, a pressure column 69, a sixth pushing cylinder 70, a pressure block 71, a retaining ring 72, a compression spring 73, a fourth connecting block 74, a connecting rod 75, and a retaining block 76. The front end face of the mounting bracket 19 is screwed with the second lifting cylinder 65 and the third slide rail 67, respectively. The third slide rail 67 is slidably connected to the first fixing plate 66. The push rod end of the second lifting cylinder 65 is screwed to the first fixing plate 66 through a connecting block. The front end face of the first fixing plate 66 is screwed with the second motor 68 through a connecting block. The output shaft end of the second motor 68 is screwed to... There is a pressure column 69, and the front end face of the first fixing plate 66 is also screwed with a sixth push cylinder 70 through a connecting block. The push rod end of the sixth push cylinder 70 is screwed with a pressure block 71. The pressure block 71 is sleeved on the pressure column 69. A retaining ring 72 is sleeved on the outside of the pressure column 69 and below the pressure block 71. A fourth connecting block 74 is screwed on the outside of the pressure column 69 and below the retaining ring 72. A compression spring 73 is welded on the outside of the pressure column 69 and between the retaining ring 72 and the fourth connecting block 74. Several connecting rods 75 are hinged to the end of the retaining ring 72. The other end of each of the several connecting rods 75 is hinged with a retaining block 76. The lateral end of the retaining block 76 is hinged to the fourth connecting block 74.

[0046] In a preferred embodiment, the insertion device 17 includes a third lifting cylinder 77 and a pressure head 78. The front end face of the mounting bracket 19 is screwed with the third lifting cylinder 77, and the push rod end of the third lifting cylinder 77 is screwed with the pressure head 78.

[0047] In a preferred embodiment, the filling device 18 includes an electric slide 79, a fifth connecting block 80, a fourth lifting cylinder 81, a switch rod 82, a plug 83, an inlet pipe 84, and an inlet connecting pipe 85. The front end of the mounting bracket 19 is screwed with the electric slide 79. The moving end of the electric slide 79 is slidably connected to the fifth connecting block 80. The front end of the fifth connecting block 80 is screwed with the fourth lifting cylinder 81 and the inlet pipe 84. The push rod end of the fourth lifting cylinder 81 is screwed with the switch rod 82. The other end of the switch rod 82 is inserted into the inlet pipe 84 and passes through the inlet pipe 84, where a plug 83 is screwed. The plug 83 abuts against the bottom of the inlet pipe 84. One side end of the inlet pipe 84 is welded with an inlet connecting pipe 85, which is connected to the inlet pipe 84.

[0048] The working principle of this utility model is as follows: During operation, the oil drum is first placed on the top surface of the first roller 22. After starting the first drive motor 21, the first drive motor 21 will drive the first roller 22 to rotate, thereby driving the oil drum to be conveyed. The oil drum will be conveyed from the first roller 22 to the top surface of the second roller 25. Then, the second drive motor 24 will be started to move the oil drum between the active rotating device 7 and the driven rotating device 8. Next, the first push cylinder 28 will be started to drive the active wheel 10 forward and into contact with the oil drum. At the same time, the second push cylinder 46 will be started to pull back the first extension frame 42 (during the oil drum conveying process, the first extension frame 42 and the second extension frame 43 are in the open state to avoid obstructing the oil drum's forward movement), driving the first rotating column 38. The rotation of the first rotating gear 40, which in turn drives the second rotating column 39 and the second extension frame 43 to rotate, causing the two driven wheels 12 to rotate inward and contact the oil drum. At this time, the first motor 31 and the first reducer 32 are started, driving the first pulley 33 to rotate, which in turn drives the second pulley 34 and the driving wheel 10 to rotate, thus rotating the oil drum. Then, the third push cylinder 48 is started, causing its connecting part to move down, so that the bottom surface of the first roller 51 is in contact with the top surface of the oil drum. At the same time, the fourth push cylinder 55 is started, causing its connecting part to move forward, and the first lifting cylinder 57 is started, causing its connecting part to move down, so that the bottom surface of the first roller 51 is in contact with the top surface of the oil drum. The bottom surface of the second roller 60 is positioned to contact the top surface of the oil drum. During the rotation of the oil drum, the first roller 51 rotates on the surface of the oil drum. When the first roller 51 contacts the oil drum lid, the lid will push the first roller 51 and the first moving block 50 apart (which will be pulled back by the first return spring), causing the first proximity switch 52 to disengage from the first moving block 50, thus achieving the first positioning detection. The oil drum then continues to rotate a quarter turn before reaching the second positioning device 14, where a second positioning detection is performed in the same manner. At this point, the first motor 31 will stop, thus stopping the oil drum. The third push cylinder 48 then resets its connecting parts, and the fourth push cylinder 55 and the first lifting cylinder 57... Its connecting parts are reset; then the second lifting cylinder 65 is activated, which drives the pressure column 69 and its connecting parts to move down. When the locking block 76 contacts the oil drum cover, the sixth pushing cylinder 70 is activated, which drives the pressure block 71 to move down, thereby driving the connecting rod 75 and the locking block 76 to retract and clamp the oil drum cover. At this time, the second motor 68 is activated, which drives the connecting rod 75 and the locking block 76 to rotate, thereby unscrewing the oil drum cover and lifting the oil drum cover through the second lifting cylinder 65; then the fifth pushing cylinder 62 is activated, which drives the mounting bracket 19 to move forward, so that the insertion hole device 17 is located in the original position of the opening device 16; then the third lifting cylinder 77 is activated, which drives the pressure head 78 to move down and insert it into the oil drum opening to check whether the position of the oil drum opening is accurate;Next, after the pressure head 78 resets, the fifth push cylinder 62 continues to move the mounting bracket 19 forward, positioning the filling device 18 in the original position of the opening device 16. At this point, the electric slide 79 is activated, causing its connecting parts to move downwards, allowing the inlet pipe 84 to enter the oil drum. Then, the fourth lifting cylinder 81 is activated, pushing the plug 83 downwards to open the bottom of the inlet pipe 84. Paint then enters the inlet pipe 84 from the inlet connecting pipe 85 and finally into the oil drum. The weighing sensor 26 on the second weighing and conveying device 6 effectively detects the weight of the oil drum, facilitating the controller to control the opening and closing of the valve on the inlet connecting pipe 85, thus achieving automatic feeding and filling.

[0049] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A positioning detection mechanism, comprising a frame, a first positioning device, and a second positioning device; the first positioning device and the second positioning device are respectively screwed onto the frame, characterized in that: The first positioning device is used to perform the first positioning detection on the opening of the oil drum, and the second positioning device is used to perform the second positioning detection on the opening of the oil drum.

2. The positioning detection mechanism according to claim 1, characterized in that: The first positioning device includes a fourth mounting plate, a third push cylinder, a first connecting block, a first moving block, a first roller, a first proximity switch, a first reset rod, and a first reset spring. The fourth mounting plate is screwed onto the frame. The third push cylinder is screwed onto the fourth mounting plate. The push rod end of the third push cylinder is screwed onto the first connecting block. The first moving block is rotatably connected to the first connecting block. The bottom ends of the first moving block are rotatably connected to the first roller. The first proximity switch and the first reset rod are screwed onto the first connecting block respectively. The first reset spring is welded onto the first reset rod. The other end of the first reset spring is welded and fixed to the first moving block.

3. The positioning detection mechanism according to claim 2, characterized in that: The second positioning device includes a fifth mounting plate, a fourth push cylinder, a second connecting block, a first lifting cylinder, a third connecting block, a second moving block, a second roller, a second proximity switch, a second reset rod, and a second reset spring. The fifth mounting plate is screwed onto the frame. The fourth push cylinder is screwed onto the fifth mounting plate. The push rod end of the fourth push cylinder is screwed onto the second connecting block. The other side of the second connecting block is screwed onto the first lifting cylinder. The push rod end of the first lifting cylinder is screwed onto the third connecting block. The third connecting block is rotatably connected to the second moving block. The bottom ends of the second moving block are rotatably connected to the second rollers. The third connecting block is also screwed onto the second proximity switch and the second reset rod. The second reset spring is welded onto the second reset rod. The other end of the second reset spring is welded and fixed to the second moving block.