Filling and capping machine and filling and capping method

Abstract

The present invention relates to the technical field of capping machines and discloses a filling and capping machine, comprising an installation shell, a conveyor belt is arranged on one side of the installation shell, a plurality of rubber sleeves for placing canned bottles are fixedly installed on the conveyor belt, a sliding opening is opened at the lower end of the installation shell, a conveying cylinder for conveying bottle caps is fixedly connected to the lower end of the installation shell, a connecting cylinder is fixedly connected to the upper end of the conveying cylinder, the upper end of the connecting cylinder passes through the sliding opening and is connected to the inside of the installation shell, a clamping plate for fixing the canned bottles is slidably connected in the sliding opening, a hydraulic rod is fixedly installed in the installation shell, and a fixing block is fixedly connected to the lower end of the hydraulic rod. The present invention facilitates the placement and taking of canned bottles by arranging a rubber sleeve with a larger inner diameter, and controls the movement of the clamping plate by slidingly connecting the clamping plate for fixing the canned bottles in the sliding opening, and cooperates with a rotating mechanism. Before capping, the clamping plate is controlled to position and clamp the canned bottles, so as to facilitate the capping work and avoid the canned bottles from rotating when capping.

Description

Technical Field

[0001] The invention relates to the technical field of capping machines, in particular to a filling and capping machine and a filling and capping method. Background Art

[0002] There are two existing beverage filling methods, one is insertion filling, and the other is air-filling. Regardless of the filling method, the beverage needs to be capped after filling. For example, a Chinese patent publication number CN218561104U, published on March 3, 2023, discloses a double-station filling and capping machine, including a bracket, a first motor is provided on one side of the front of the bracket, a driving pulley is fixedly installed on the output shaft of the first motor, a driven pulley is provided on one side of the driving pulley, and the driving pulley and the driven pulley are A connecting belt is wound around the inner cavity of the pulley, and a shaft is fixedly installed on the back of the driving pulley and the driven pulley; the output shaft of the second motor drives the first gear to rotate, and the first gear drives the second gear and the connecting pipe to rotate, and the connecting pipe drives the lower connecting pipe and the bottle cap and other structures to rotate through the first electric push rod, and at the same time, the first electric push rod drives the lower connecting pipe and the bottle cap to move downward, and the bottle cap is screwed into the bottle mouth of the canned bottle through the downward movement and rotation of the bottle cap, so as to solve the problems that the existing filling and capping machines are complicated in structure and expensive, and the efficiency of manual capping is low, which affects production efficiency and wastes manpower.

[0003] However, the above-mentioned filling and capping machine still has some shortcomings in actual use. In the above-mentioned prior art, the canned bottle is placed in a rubber sleeve for fixed transmission. When the cap is screwed, the canned bottle is fixed by the rubber sleeve, and the rubber sleeve plays a role of squeezing and fixing the canned bottle. This method is not convenient for connecting and separating the canned bottle and the rubber sleeve, and the canned bottle is only fixed by the rubber sleeve. When the cap is screwed, there is still a problem of rotation of the canned bottle, which affects the screwing work. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a filling and capping machine and a filling and capping method, which solve the problem that when screwing the cap, the canned bottle is fixed by a rubber sleeve, and the rubber sleeve plays a role of squeezing and fixing the canned bottle. However, this method is not convenient for connecting and separating the canned bottle and the rubber sleeve, and the canned bottle is only fixed by the rubber sleeve. When screwing the cap, the canned bottle still rotates.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a filling and capping machine, comprising a mounting shell, a conveyor belt is arranged on one side of the mounting shell, a plurality of rubber sleeves for placing canned bottles are fixedly mounted on the conveyor belt, a sliding opening is opened at the lower end of the mounting shell, a conveying cylinder for conveying bottle caps is fixedly connected to the lower end of the mounting shell, a connecting cylinder is fixedly connected to the upper end of the conveying cylinder, the upper end of the connecting cylinder passes through the sliding opening and is connected to the inside of the mounting shell, a clamping plate for fixing canned bottles is slidably connected in the sliding opening, a hydraulic rod is fixedly mounted in the mounting shell, and the lower end of the hydraulic rod is fixedly connected There is a fixed block, a sliding groove is provided at the lower end of the fixed block, the upper end of the splint is slidably connected with the sliding groove, a rotatable connection and rotating mechanism passes through the sliding groove, and the rotating mechanism is used to control the movement of the splint, a conveying mechanism is rotatably arranged in the installation shell, and the conveying mechanism is communicated with the connecting cylinder, a storage cylinder for placing bottle caps is installed through the upper end of the installation shell, and the storage cylinder is communicated with the conveying mechanism, a clamping mechanism for clamping the bottle caps is arranged on the conveying cylinder, one side of the clamping mechanism is fixedly connected with the splint, and an installation cavity is provided on the side wall of the sliding mouth, and a connecting mechanism for controlling the connecting cylinder is rotatably arranged in the installation cavity.

[0006] Preferably, the rotating mechanism includes a threaded rod rotatably connected to the slide groove, the threaded rod is threadedly connected to the clamping plate, one end of the threaded rod passes through the fixed block and is fixedly connected to the first gear, one side of the first gear is meshedly connected to a serrated plate, and the serrated plate is fixedly connected to the inner wall of the mounting shell.

[0007] Preferably, connecting grooves are symmetrically provided on the outer side of the conveying cylinder, and the clamping mechanism includes a slider slidably connected to the connecting groove, a connecting ring is fixedly connected to the outer end of the slider, an electric push rod is fixedly connected to one side of the connecting ring, a clamping ring for fixing the bottle cap is fixedly connected to one end of the electric push rod, a spring is fixedly arranged between the slider and the connecting groove, a pressure plate is arranged on the upper end of the connecting ring, and one end of the pressure plate is fixedly connected to the clamping plate.

[0008] Preferably, the conveying mechanism comprises a turntable rotatably connected to the bottom of the mounting shell, and two through-holes are symmetrically formed through the turntable, and the through-holes are connected to the storage cylinder and the connecting cylinder.

[0009] Preferably, the connecting mechanism includes a full gear rotatably connected to the mounting cavity, the full gear is fixedly connected to the turntable, a half gear is meshedly connected to one side of the full gear, a motor is fixedly mounted on the lower end of the mounting shell, the output end of the motor is fixedly connected to the half gear, and a latch tooth meshing with the half gear is fixedly mounted on the circumferential side of the connecting cylinder.

[0010] Preferably, a compression pad is fixedly mounted on one side of the clamping plate located at the canning bottle.

[0011] Preferably, the inner diameter of the rubber sleeve is larger than the diameter of the canning bottle.

[0012] Preferably, the diameter of the full gear is consistent with the diameter of the half gear, and the diameter of the half gear is larger than the diameter of the connecting cylinder.

[0013] Preferably, the lower end of the clamping plate is fixedly connected to a limiting plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention provides a rubber sleeve with a larger inner diameter to facilitate the placement and removal of canned bottles. A clamping plate for fixing the canned bottles is slidably connected in a sliding mouth and is used to control the movement of the clamping plate through the cooperation of a rotating mechanism. Before screwing the cap, the clamping plate is controlled to position and clamp the canned bottle, which facilitates the screwing work and prevents the canned bottle from rotating when screwing the cap.

[0016] 2. The present invention connects a slider by sliding on the outside of a conveying cylinder, fixes an electric push rod on one side of a connecting ring on the outer end of the slider, and fixes a clamping ring for fixing a bottle cap on one end of the electric push rod. The canned bottle is fixed by moving a clamping plate, and the clamping ring is moved downward by moving a pressing plate so that the clamping ring is located around the opening of the upper end of the canned bottle, which is convenient for subsequent fixing of the bottle cap to achieve screw capping.

[0017] 3. The present invention symmetrically penetrates two through holes on the turntable at the bottom of the mounting shell, and the through holes are connected to the storage cylinder and the connecting cylinder. When the turntable is rotated, the bottle caps in the storage cylinder can be transferred to the connecting cylinder through the through holes, and only one is transferred each time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of a side-view three-dimensional cross-sectional structure of the installation housing of the present invention;

[0020] Figure 3 for Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0021] Figure 4 It is another side view of the three-dimensional cross-sectional structure of the mounting housing of the present invention;

[0022] Figure 5 for Figure 4 Schematic diagram of the enlarged structure of B;

[0023] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of C in the middle;

[0024] Figure 7It is a rear perspective cross-sectional structural schematic diagram of the installation housing of the present invention;

[0025] Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating mechanism of the present invention;

[0026] Fig. 9 It is a schematic diagram of the connection structure between the connection mechanism and the connection cylinder of the present invention.

[0027] In the figure: 1. mounting shell; 2. canned bottle; 3. conveyor belt; 4. storage cylinder; 5. hydraulic rod; 6. rubber sleeve; 7. limit plate; 8. extrusion pad; 9. clamping plate; 10. fixing block; 11. serrated plate; 12. turntable; 13. slide; 14. pressure plate; 15. bottle cap; 16. conveying cylinder; 17. slide groove; 18. threaded rod; 19. mounting cavity; 20. connecting groove; 21. perforation; 22. half gear; 23. snap tooth; 24. connecting cylinder; 25. spring; 26. connecting ring; 27. electric push rod; 28. snap ring; 29. ​​slider; 30. full gear; 31. motor; 32. first gear. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-Figure 9 A filling and capping machine comprises a mounting shell 1, a conveyor belt 3 is arranged on one side of the mounting shell 1, and a plurality of rubber sleeves 6 for placing canned bottles 2 are fixedly installed on the conveyor belt 3. The above structure is similar to the structure and function in the Chinese patent document with the authorization announcement number CN218561104U. The inner diameter of the rubber sleeve 6 is larger than the diameter of the canned bottle 2, which is convenient for placing and taking the canned bottle 2. A sliding opening 13 is opened at the lower end of the mounting shell 1, and a conveying cylinder 16 for conveying bottle caps 15 is fixedly connected to the lower end of the mounting shell 1. A connecting cylinder 24 is fixedly connected to the upper end of the conveying cylinder 16. The upper end of the connecting cylinder 24 passes through the sliding opening 13 and is connected to the inside of the mounting shell 1. The connecting tube 24 is rotatably connected with the sliding mouth 13, and a clamping plate 9 for fixing the canned bottle 2 is slidably connected in the sliding mouth 13. The portion where the lower end of the clamping plate 9 contacts the canned bottle 2 is set in an arc shape. A hydraulic rod 5 is fixedly installed in the mounting shell 1, and a fixing block 10 is fixedly connected to the lower end of the hydraulic rod 5. A sliding groove 17 is provided at the lower end of the fixing block 10. The upper end of the clamping plate 9 is slidably connected with the sliding groove 17, and a rotating mechanism is rotatably connected in the sliding groove 17. The rotating mechanism is used to control the movement of the clamping plate 9. Through the cooperation of the rotating mechanism, the movement of the clamping plate 9 is controlled. Before screwing the cap, the clamping plate 9 is controlled to position and clamp the canned bottle 2, which is convenient for screwing the cap and avoids the canned bottle 2 from rotating when screwing the cap.

[0030] A conveying mechanism is rotatably arranged in the installation shell 1, and the conveying mechanism is communicated with the connecting cylinder 24. A storage cylinder 4 for placing bottle caps 15 is installed through the upper end of the installation shell 1, and the storage cylinder 4 is communicated with the conveying mechanism. The conveying mechanism includes a turntable 12 rotatably connected to the bottom of the installation shell 1, and the thickness of the turntable 12 is consistent with the height of the bottle caps 15, so that only one bottle cap 15 is conveyed at a time, and two through holes 21 are symmetrically penetrated on the turntable 12, and the through holes 21 are communicated with the storage cylinder 4 and the connecting cylinder 24. A clamping mechanism for clamping the bottle cap 15 is arranged on the conveying cylinder 16, and one side of the clamping mechanism is fixedly connected to the clamping plate 9, and an installation cavity 19 is arranged on the side wall of the sliding mouth 13, and a connecting mechanism for controlling the connecting cylinder 24 is rotatably arranged in the installation cavity 19, and the rotation of the turntable 12 can be controlled by the cooperation of the connecting mechanism, and the bottle caps 15 in the storage cylinder 4 can be conveyed to the connecting cylinder 24 through the through holes 21.

[0031] As a further solution of the present invention, the rotating mechanism includes a threaded rod 18 rotatably connected to the slide groove 17, the threaded rod 18 is threadedly connected to the clamping plate 9, and the thread directions of the connection between the two clamping plates 9 and the threaded rod 18 are opposite, so that the two clamping plates 9 can move toward or away from each other at the same time, one end of the threaded rod 18 passes through the fixed block 10 and is fixedly connected to the first gear 32, and one side of the first gear 32 is meshedly connected to a serrated plate 11, and the serrated plate 11 is fixedly connected to the inner wall of the mounting shell 1. Before screwing the cap, when the fixed block 10 is driven downward by starting the hydraulic rod 5, the fixed block 10 drives the threaded rod 18 to move downward. Since the first gear 32 is meshed with the serrated plate 11, the threaded rod 18 rotates when it moves downward, and the threaded rod 18 causes the two clamping plates 9 to move toward each other when they move downward, so as to position and clamp the canned bottle 2.

[0032] As a further solution of the present invention, a connecting groove 20 is symmetrically opened on the outer side of the conveying cylinder 16, and the clamping mechanism includes a slider 29 slidably connected to the connecting groove 20, and a connecting ring 26 is fixedly connected to the outer end of the slider 29, and an electric push rod 27 is fixedly connected to one side of the connecting ring 26, and a snap ring 28 for fixing the bottle cap 15 is fixedly connected to one end of the electric push rod 27, and a spring 25 is fixedly arranged between the slider 29 and the connecting groove 20, and a pressing plate 14 is arranged on the upper end of the connecting ring 26, and one end of the pressing plate 14 is fixedly connected to the splint 9. When the splint 9 moves to fix the canned bottle 2, the snap ring 28 can be located on the opening side of the upper end of the canned bottle 2 by driving the pressing plate 14 to move downward, so as to facilitate the subsequent falling of the bottle cap 15, and then the snap ring 28 can fix the bottle cap 15 through the operation of the electric push rod 27 to screw the cap.

[0033] As a further solution of the present invention, the connecting mechanism includes a full gear 30 rotatably connected to the mounting cavity 19, the full gear 30 is fixedly connected to the turntable 12, a half gear 22 is meshedly connected to one side of the full gear 30, a motor 31 is fixedly mounted on the lower end of the mounting shell 1, the output end of the motor 31 is fixedly connected to the half gear 22, a latch 23 meshing with the half gear 22 is fixedly mounted on the circumference of the connecting cylinder 24, the diameter of the full gear 30 is consistent with the diameter of the half gear 22, the diameter of the half gear 22 is larger than the diameter of the connecting cylinder 24, when the motor 31 is working, when the half gear 22 is meshed with the full gear 30, the bottle cap 15 can be transferred, and when the half gear 22 is meshed with the latch 23, the capping operation can be realized.

[0034] As a further solution of the present invention, a clamp 9 is fixedly installed with a squeezing pad 8 on one side of the canned bottle 2. When the clamp 9 clamps the canned bottle 2, it contacts the canned bottle 2 through the squeezing pad 8, which can increase the friction of the contact surface and has a good fixing effect. At the same time, the outer side of the canned bottle 2 can be protected. The part where the squeezing pad 8 contacts the canned bottle 2 is arc-shaped.

[0035] As a further solution of the present invention, the lower end of the clamp 9 is fixedly connected to the limiting plate 7, so that when the clamp 9 moves to clamp the canned bottle 2, the next canned bottle 2 to be screwed on canned can 2 can be pre-positioned through the symmetrical limiting plate 7, so as to facilitate the bottle cap 15 to fall to the upper end of the canned bottle 2.

[0036] A filling and capping method of a filling and capping machine comprises the following steps:

[0037] A large number of bottle caps 15 are placed in the storage cylinder 4 in advance and stacked neatly. There is a small gap between the storage cylinder 4, the perforation 21, the connecting cylinder 24 and the inner wall of the conveying cylinder 16 and the bottle caps 15, which is convenient for conveying the bottle caps 15. The thickness of the turntable 12 is consistent with the height of the bottle caps 15.

[0038] When the conveyor belt 3 conveys the canned bottle 2 to the bottom of the conveyor cylinder 16, the conveyor belt 3 stops working, and the hydraulic rod 5 is started to work, and the hydraulic rod 5 pushes the fixed block 10 to move downward, and the fixed block 10 drives the clamping plate 9 and the threaded rod 18 to move downward, and the threaded rod 18 drives the first gear 32 to move downward. Since the first gear 32 is engaged with the sawtooth plate 11, the threaded rod 18 rotates when it moves downward, and the threaded rod 18 drives the two clamping plates 9 to move toward each other when they move downward, until the squeezing pad 8 positions and clamps the canned bottle 2;

[0039] When the clamping plate 9 moves, it drives the limiting plate 7 to move. The two symmetrical limiting plates 7 can pre-position the next canned bottle 2 to be screwed on, so that the bottle cap 15 can fall to the upper end of the canned bottle 2.

[0040] When the clamping plate 9 moves, it drives the pressing plate 14 to move downward, the pressing plate 14 pushes the connecting ring 26 to move downward, the connecting ring 26 drives the slider 29 to slide downward in the connecting groove 20, the spring 25 is stretched, the connecting ring 26 drives the electric push rod 27 to move downward, the electric push rod 27 drives the clamping ring 28 to move downward to the opening side of the upper end of the canned bottle 2, the clamping ring 28 is located at the opening side of the upper end of the canned bottle 2, and can also block and limit the bottle cap 15 after it moves downward;

[0041] Then the motor 31 is started to work, the motor 31 drives the half gear 22 to rotate, at this time the half gear 22 is meshed with the full gear 30, and is not meshed with the latch 23, the half gear 22 drives the full gear 30 to rotate half a circle, the full gear 30 drives the turntable 12 to rotate, the through hole 21 connected with the storage cylinder 4 is turned to be connected with the connecting cylinder 24, the bottle cap 15 is transferred to the connecting cylinder 24, and then moved down to the upper end of the canned bottle 2 through the conveying cylinder 16, and then the electric push rod 27 is started to drive the snap ring 28 to move, the bottle cap 15 is squeezed and fixed, while the turntable 12 rotates, the through hole 21 connected with the connecting cylinder 24 is turned to be connected with the storage cylinder 4, the bottle cap 15 in the storage cylinder 4 falls into the through hole 21, and it is convenient for downward movement and transmission;

[0042] The motor 31 continues to work, at this time the half gear 22 is not meshed with the full gear 30, but meshed with the latching tooth 23, the half gear 22 drives the connecting cylinder 24 to rotate, the connecting cylinder 24 drives the transmission cylinder 16 to rotate, and the snap ring 28 can be rotated to perform the capping work;

[0043] Then start the electric push rod 27 to reset the snap ring 28, and then start the hydraulic rod 5 to reset the clamping plate 9, driving the pressure plate 14. Due to the spring 25, the slider 29, the connecting ring 26, the electric push rod 27 and the snap ring 28 all move up; then the conveyor belt 3 can be started to work and reciprocate in sequence.

[0044] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filling and capping machine, comprising a mounting housing (1), a conveyor belt (3) being arranged on one side of the mounting housing (1), a plurality of rubber sleeves (6) for placing canned bottles (2) being fixedly mounted on the conveyor belt (3), characterized in that: The lower end of the installation shell (1) is provided with a sliding opening (13), the lower end of the installation shell (1) is fixedly connected with a conveying cylinder (16) for conveying bottle caps (15), the upper end of the conveying cylinder (16) is fixedly connected with a connecting cylinder (24), the upper end of the connecting cylinder (24) passes through the sliding opening (13) and is connected with the inside of the installation shell (1), the sliding opening (13) is slidably connected with a clamping plate (9) for fixing the canned bottle (2), a hydraulic rod (5) is fixedly installed in the installation shell (1), the lower end of the hydraulic rod (5) is fixedly connected with a fixing block (10), the lower end of the fixing block (10) is provided with a sliding groove (17), the upper end of the clamping plate (9) is connected to the sliding groove (17) A sliding connection, a rotation mechanism is rotatably connected in the slide groove (17), and the rotation mechanism is used to control the movement of the clamping plate (9). A transmission mechanism is rotatably arranged in the installation shell (1), and the transmission mechanism is communicated with the connecting cylinder (24). A storage cylinder (4) for placing the bottle cap (15) is installed on the upper end of the installation shell (1), and the storage cylinder (4) is communicated with the transmission mechanism. A clamping mechanism for clamping the bottle cap (15) is arranged on the transmission cylinder (16), and one side of the clamping mechanism is fixedly connected to the clamping plate (9). A mounting cavity (19) is opened on the side wall of the sliding mouth (13), and a connecting mechanism for controlling the connecting cylinder (24) is rotatably arranged in the mounting cavity (19); The outer side of the conveying cylinder (16) is symmetrically provided with a connecting groove (20), and the clamping mechanism comprises a slider (29) slidably connected to the connecting groove (20), the outer end of the slider (29) is fixedly connected to a connecting ring (26), one side of the connecting ring (26) is fixedly connected to an electric push rod (27), one end of the electric push rod (27) is fixedly connected to a clamping ring (28) for fixing the bottle cap (15), a spring (25) is fixedly arranged between the slider (29) and the connecting groove (20), and a pressing plate (14) is arranged at the upper end of the connecting ring (26), and one end of the pressing plate (14) is fixedly connected to the clamping plate (9); The conveying mechanism comprises a turntable (12) rotatably connected to the bottom of the mounting housing (1), and two through holes (21) are symmetrically formed through the turntable (12), and the through holes (21) are connected to the storage cylinder (4) and the connecting cylinder (24); The connection mechanism comprises a full gear (30) rotatably connected to the mounting cavity (19), the full gear (30) being fixedly connected to the rotating disk (12), one side of the full gear (30) being meshingly connected to a half gear (22), a motor (31) being fixedly mounted on the lower end of the mounting housing (1), an output end of the motor (31) being fixedly connected to the half gear (22), and a latching tooth (23) meshing with the half gear (22) being fixedly mounted on the circumference of the connecting cylinder (24).

2. A filling and capping machine according to claim 1, characterized in that: The rotating mechanism comprises a threaded rod (18) rotatably connected to the slide groove (17), the threaded rod (18) being threadedly connected to the clamping plate (9), one end of the threaded rod (18) passing through the fixed block (10) and being fixedly connected to a first gear (32), one side of the first gear (32) being meshingly connected to a sawtooth plate (11), and the sawtooth plate (11) being fixedly connected to the inner wall of the mounting shell (1).

3. The filling and capping machine according to claim 1, characterized in that: The clamping plate (9) is located on one side of the canned bottle (2) and is fixedly mounted with a squeezing pad (8).

4. The filling and capping machine according to claim 1, characterized in that: The inner diameter of the rubber sleeve (6) is greater than the diameter of the canning bottle (2).

5. The filling and capping machine according to claim 1, characterized in that: The diameter of the full gear (30) is consistent with the diameter of the half gear (22), and the diameter of the half gear (22) is greater than the diameter of the connecting cylinder (24).

6. The filling and capping machine according to claim 1, characterized in that: The lower end of the clamping plate (9) is fixedly connected to the limiting plate (7).

7. A filling and capping method for a filling and capping machine, characterized in that: The following steps are involved: a. Place a large number of bottle caps (15) in the storage cylinder (4) in advance and stack them neatly. There is a small gap between the inner walls of the storage cylinder (4), the perforation (21), the connecting cylinder (24) and the conveying cylinder (16) and the bottle caps (15) to facilitate the conveyance of the bottle caps (15). The thickness of the turntable (12) is consistent with the height of the bottle caps (15); b. When the conveyor belt (3) conveys the canned bottle (2) to the bottom of the conveyor cylinder (16), the conveyor belt (3) stops working. At this time, the hydraulic rod (5) is started to work. The hydraulic rod (5) pushes the fixed block (10) to move downward. The fixed block (10) drives the clamping plate (9) and the threaded rod (18) to move downward. The threaded rod (18) drives the first gear (32) to move downward. Since the first gear (32) is meshed with the sawtooth plate (11), the threaded rod (18) rotates when it moves downward. The threaded rod (18) drives the two clamping plates (9) to move toward each other when they move downward, until the extrusion pad (8) positions and clamps the canned bottle (2); c. When the clamping plate (9) moves, it drives the limiting plate (7) to move, and the two symmetrical limiting plates (7) can pre-position the next canned bottle (2) to be screwed on, so that the bottle cap (15) can fall to the upper end of the canned bottle (2); d. When the clamping plate (9) moves, it drives the pressing plate (14) to move downward, the pressing plate (14) drives the connecting ring (26) to move downward, the connecting ring (26) drives the slider (29) to slide downward in the connecting groove (20), the spring (25) is stretched, the connecting ring (26) drives the electric push rod (27) to move downward, the electric push rod (27) drives the clamping ring (28) to move downward to the opening side of the upper end of the canned bottle (2), the clamping ring (28) is located at the opening side of the upper end of the canned bottle (2), and can also block and limit the bottle cap (15) after it moves downward; e. Then the motor (31) is started to work, the motor (31) drives the half gear (22) to rotate, at which time the half gear (22) is meshed with the full gear (30) and is not meshed with the latching tooth (23), the half gear (22) drives the full gear (30) to rotate half a circle, the full gear (30) drives the turntable (12) to rotate, the through hole (21) connected with the storage cylinder (4) is turned to be connected with the connecting cylinder (24), the bottle cap (15) is transferred to the connecting cylinder (24), and then moved down to the upper end of the canned bottle (2) through the conveying cylinder (16), and then the electric push rod (27) is started to drive the snap ring (28) to move, the bottle cap (15) is squeezed and fixed, and while the turntable (12) is rotating, the through hole (21) connected with the connecting cylinder (24) is turned to be connected with the storage cylinder (4), and the bottle cap (15) in the storage cylinder (4) falls into the through hole (21), which is convenient for downward transfer; f. The motor (31) continues to work, at which time the half gear (22) is not meshed with the full gear (30) but meshed with the latching gear (23), the half gear (22) drives the connecting cylinder (24) to rotate, the connecting cylinder (24) drives the transmission cylinder (16) to rotate, and the snap ring (28) can be rotated to perform the capping operation; g. Then, the electric push rod (27) is started to work, so that the snap ring (28) is reset, and then the hydraulic rod (5) is started to work, so that the clamping plate (9) is reset, driving the pressing plate (14), and due to the spring (25), the slider (29), the connecting ring (26), the electric push rod (27) and the snap ring (28) are all moved upward; then the conveyor belt (3) can be started to work, and reciprocate in sequence.

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