Plug and cover adding device

Abstract

The utility model discloses a plugging and capping device which comprises a plug conveying mechanism and a cap conveying mechanism which are arranged in parallel, and further comprises a bottle body positioning mechanism, a plug cap taking mechanism and a plug pressing and capping mechanism, the plug pressing and capping mechanism is arranged between the bottle body positioning mechanism and the plug cap taking mechanism, the plug cap taking mechanism is arranged between the plug conveying mechanism and the cap conveying mechanism, and the bottle body positioning mechanism is arranged on the bottle body positioning mechanism. The plug cap taking mechanism is used for taking plugs from the plug conveying mechanism and taking caps from the cap conveying mechanism at the same time. The device has the advantages of being simple in structure, small in occupied area and low in equipment cost.

Description

Technical Field

[0001] The utility model relates to the technical field of food and medicine packaging, in particular to a plugging and capping device. Background Art

[0002] Existing eye drop stoppering, capping and capping mechanisms, such as the linear eye drop bottle washing, filling, stoppering and capping integrated machine with application number: CN201310738309.6, discloses a stoppering mechanism, a capping mechanism and a capping mechanism that are separately arranged in sequence. The specific stoppering and capping method is: after the gantry stoppering mechanism completes the stoppering and stoppering processes, the servo motor drives the synchronous belt to drive the bottle to the capping mechanism, the gantry capping mechanism is used to grab and press the cap, and then the servo motor drives the synchronous belt again to drive the bottle to the constant torque capping mechanism for capping.

[0003] The all-in-one machine has the following disadvantages: the plugging and capping mechanisms are arranged at corresponding workstations in sequence, occupying a large area, and the plug suction and cap grabbing are carried out at two workstations respectively. The plugging process must be completed before the cap grabbing can be carried out, which is inefficient. At the same time, feeding and picking mechanisms are required for the feeding and picking of the plugs and caps respectively, and a positioning mechanism is provided at each process station respectively, so the structure is relatively complicated and the equipment cost is high. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a plugging and capping device with a simple structure, a small footprint and low equipment cost.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A plugging and capping device comprises a plug feeding mechanism and a cap feeding mechanism arranged in parallel, and also comprises a bottle body positioning mechanism, a plug and cap picking mechanism, and a plug pressing and capping mechanism. The plug pressing and capping mechanism is arranged between the bottle body positioning mechanism and the plug and cap picking mechanism, the plug and cap picking mechanism is arranged between the plug feeding mechanism and the cap feeding mechanism, and the plug and cap picking mechanism is used to simultaneously take plugs from the plug feeding mechanism and take caps from the cap feeding mechanism.

[0007] As a further improvement of the above technical solution:

[0008] The plug and cover material taking mechanism includes a material taking block and a mobile driving assembly. One end of the material taking block is provided with a plurality of spaced plug taking grooves, and the other end is provided with a plurality of spaced cover taking grooves. The plurality of plug taking grooves and the corresponding cover taking grooves form a plurality of material taking groove groups. The mobile driving assembly is used to drive the material taking block to move so that the plug taking grooves in the plurality of material taking groove groups are sequentially docked with the plug delivery channels of the plug delivery mechanism to take materials, and the cover taking grooves are sequentially docked with the cover delivery channels of the cover delivery mechanism to take materials.

[0009] The plug taking slots and the cover taking slots are both provided with two, the moving driving assembly comprises a material blocking cylinder and a material taking cylinder, the material taking cylinder is arranged on the material blocking cylinder, and the material taking block is arranged on the material taking cylinder.

[0010] The plug delivery mechanism includes a vibrating plug feeding hopper, the plug feeding hopper is connected to a plug sorting disk, the plug delivery channel is connected to the discharge port of the plug sorting disk, and the cap delivery mechanism includes a vibrating cap feeding hopper, the cap feeding hopper is connected to the cap sorting disk, and the cap delivery channel is connected to the discharge port of the cap sorting disk.

[0011] The plugging and capping mechanism includes a feeding rod and a feeding drive assembly for driving the feeding rod to swing and lift. A plurality of plug feeding heads and a plurality of cap feeding heads are arranged at intervals on the feeding rod. The plurality of plug feeding heads and the corresponding cap feeding heads form a plurality of feeding head groups. The plurality of feeding head groups and the plurality of material taking trough groups are arranged in a one-to-one correspondence. A first air suction channel is provided in the feeding rod, and the first air suction channel is connected to each plug feeding head and cap feeding head.

[0012] The feeding drive assembly includes a feeding shaft, a swing seat arranged on the feeding shaft, a lifting drive for driving the feeding shaft to lift and lower, and a swing drive for driving the feeding shaft to swing. The feeding rod is arranged on the swing seat. The feeding shaft and the swing seat are respectively provided with a second suction channel and a third suction channel. The third suction channel is connected to the second suction channel, and the first suction channel is connected to the third suction channel.

[0013] The feeding drive assembly is provided with two groups, and the two groups of feeding drive assemblies are respectively connected to the two ends of the feeding rod.

[0014] The bottle body positioning mechanism includes a first positioning block, a second positioning block and a positioning drive assembly. The first positioning block is provided with a positioning groove, and the second positioning block is provided with a positioning portion that cooperates with the positioning groove to form a positioning channel. The positioning drive assembly is used to drive the first positioning block and the second positioning block to move relatively closer or farther away.

[0015] The positioning drive assembly includes a driving shaft, a driven shaft, a synchronous belt assembly and a rotary drive for driving the driving shaft to rotate. The driving shaft and the driven shaft are respectively connected to the driving wheel and the driven wheel of the synchronous belt assembly. The driving shaft and the driven shaft are both connected to an eccentric block and are rotatably connected to a movable guide rod. The eccentric block is connected to a movable seat, and the movable seat is slidably disposed on the movable guide rod. The first positioning block and the second positioning block are respectively disposed on the corresponding movable seats.

[0016] The first positioning block is provided with an alignment groove, and the second positioning block is provided with an alignment block that cooperates with the alignment groove for positioning.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model discloses a plugging and capping device, and the plugging and capping process of the plugging and capping device is as follows: the plug and the cap are respectively input from the plug feeding mechanism and the cap feeding mechanism, and after the bottle body is filled, it is transported to the bottle body positioning mechanism to position the bottle body, and then the plug and cap taking mechanism simultaneously takes the plug from the plug feeding mechanism and the cap from the cap feeding mechanism, and after the plug and cap taking is completed, the plug pressing and capping mechanism simultaneously transfers the plug and the cap on the plug and cap taking mechanism, and presses the plug into the bottle body and then covers the cap on the bottle body. In this plugging and capping device, plug and cap taking are carried out simultaneously, and the bottle body can be plugged and capped at the same station, occupying a small area, and there is no need to complete the plugging process before taking the cap, which improves the plugging and capping efficiency, and at the same time, plugging and capping can share a set of plug and cap taking mechanism and bottle body positioning mechanism, with a simpler structure and low equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the plugging and capping device of the utility model applied to a linear filling machine.

[0020] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the plugging and capping state of the plugging and capping material taking mechanism in the plugging and capping device of the utility model.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the capping and capping state of the plugging and capping mechanism in the plugging and capping device of the utility model.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the blocking state of the plugging and capping material taking mechanism in the plugging and capping device of the utility model.

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the plugging and capping mechanism in the plugging and capping device of the utility model.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the bottle positioning mechanism in the plugging and capping device of the utility model in the state of waiting for bottle feeding.

[0026] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure.

[0027] Fig. 9 It is a three-dimensional structural schematic diagram of the bottle positioning state of the bottle positioning mechanism in the plugging and capping device of the utility model.

[0028] The reference numerals in the figure indicate: 1. plug delivery mechanism; 11. plug delivery channel; 12. plug inlet bucket; 13. plug sorting plate; 2. cap delivery mechanism; 21. cap delivery channel; 22. cap inlet bucket; 23. cap sorting plate; 3. bottle body positioning mechanism; 31. first positioning block; 311. positioning groove; 312. positioning part; 313. positioning channel; 314. alignment groove; 32. second positioning block; 321. alignment block; 33. positioning drive assembly; 331. driving shaft; 332. driven shaft; 333. synchronous belt Assembly; 334, rotary drive; 335, eccentric block; 336, guide rod; 337, movable seat; 4, plug cover material taking mechanism; 41, taking block; 42, movable drive assembly; 421, material blocking cylinder; 422, material taking cylinder; 43, plug taking slot; 44, cap taking slot; 5, plug pressing and capping mechanism; 51, feeding rod; 52, feeding drive assembly; 521, feeding shaft; 522, swing seat; 523, lifting drive; 524, swing drive; 53, plug feeding head; 54, cap feeding head. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Figures 1 to 9 An embodiment of the utility model is shown. The plugging and capping device of this embodiment is as follows: Figure 1 and Figure 2 As shown, the plugging and capping device of this embodiment includes a plug feeding mechanism 1 and a cap feeding mechanism 2 arranged in parallel, and also includes a bottle body positioning mechanism 3, a plug and cap picking mechanism 4, and a plug pressing and capping mechanism 5. The plug pressing and capping mechanism 5 is arranged between the bottle body positioning mechanism 3 and the plug and cap picking mechanism 4, and the plug and cap picking mechanism 4 is arranged between the plug feeding mechanism 1 and the cap feeding mechanism 2. The plug and cap picking mechanism 4 is used for taking plugs from the plug feeding mechanism 1 and caps from the cap feeding mechanism 2 at the same time.

[0034] The plugging and capping process of the plugging and capping device is as follows: the plug and the cap are respectively input from the plug feeding mechanism 1 and the cap feeding mechanism 2, and after the bottle body is filled, it is transported to the bottle body positioning mechanism 3 to position the bottle body, and then the plug and cap picking mechanism 4 simultaneously picks up the plug from the plug feeding mechanism 1 and the cap from the cap feeding mechanism 2. After the plug and cap picking is completed, the plug pressing and capping mechanism 5 simultaneously transfers the plug and the cap on the plug and cap picking mechanism 4, and presses the plug into the bottle body and then covers the cap on the bottle body.

[0035] The stoppering and capping device can simultaneously remove the stopper and the cap, and can perform stoppering and capping on the bottle at the same work station, occupying a small area, and there is no need to complete the stoppering process before removing the cap, thereby improving the stoppering and capping efficiency. At the same time, the stoppering and capping can share a set of stopper and cap taking mechanism 4 and bottle body positioning mechanism 3, with a simpler structure and low equipment cost.

[0036] In this embodiment, the plug and cover material taking mechanism 4 includes a material taking block 41 and a mobile driving assembly 42. A plurality of plug taking grooves 43 arranged at intervals are provided at one end of the material taking block 41, and a plurality of cover taking grooves 44 arranged at intervals are provided at the other end. The plurality of plug taking grooves 43 and the corresponding cover taking grooves 44 form a plurality of material taking groove groups. The mobile driving assembly 42 is used to drive the material taking block 41 to move, so that the plug taking grooves 43 in the plurality of material taking groove groups are sequentially docked with the plug delivery channel 11 of the plug delivery mechanism 1 to take materials, and the cover taking grooves 44 are sequentially docked with the cover delivery channel 21 of the cover delivery mechanism 2 to take materials. The mobile driving component 42 drives the material taking block 41 to move, so that the plug taking slot 43 in one material taking slot group is docked with the plug delivery channel 11, and the cover taking slot 44 is docked with the cover delivery channel 21, so as to realize simultaneous plug and cover taking. After the material taking slot group of this material taking slot group has finished taking materials, the mobile driving component 42 drives the material taking block 41 to move again, so that the remaining material taking slot groups can take materials in turn. After all the material taking slot groups have finished taking materials, the mobile driving component 42 drives the material taking block 41 to move again, so that the plug taking slot 43 and the plug delivery channel 11 are staggered to block the materials, and the cover taking slot 44 and the cover delivery channel 21 are staggered to block the materials, that is, the material taking is stopped at this time.

[0037] In this embodiment, two plug-taking slots 43 and two cover-taking slots 44 are provided, and the mobile driving assembly 42 includes a material-blocking cylinder 421 and a material-taking cylinder 422. The material-taking cylinder 422 is arranged on the material-blocking cylinder 421, and the material-taking block 41 is arranged on the material-taking cylinder 422. The material-blocking cylinder 421 retracts, and the material-taking cylinder 422 extends. One group of plug-taking slots 43 and cover-taking slots 44 dock with the plug-delivery channel 11 and the cover-delivery channel 21 to take materials. Then, the material-blocking cylinder 421 remains retracted, and the material-taking cylinder 422 retracts at the same time, and another group of plug-taking slots 43 and cover-taking slots 44 dock with the plug-delivery channel 11 and the cover-delivery channel 21 to take materials. Finally, the material-blocking cylinder 421 extends, and the material-taking cylinder 422 remains retracted, and the plug-taking slots 43 and cover-taking slots 44 are staggered with the plug-delivery channel 11 and the cover-delivery channel 21 to block materials. By controlling the extension and retraction of the material blocking cylinder 421 and the material taking cylinder 422, the material taking and blocking of the two groups of plug taking slots 43 and cover taking slots 44 can be controlled. There is no need to extend multiple strokes, and the material taking is accurate and fast.

[0038] In this embodiment, the plug delivery mechanism 1 includes a vibrating plug feeding hopper 12, the plug feeding hopper 12 is connected to a plug sorting plate 13, the plug delivery channel 11 is connected to the discharge port of the plug sorting plate 13, and the cap delivery mechanism 2 includes a vibrating cap feeding hopper 22, the cap feeding hopper 22 is connected to a cap sorting plate 23, and the cap delivery channel 21 is connected to the discharge port of the cap sorting plate 23. After the plugs enter from the vibrating plug feeding hopper 12, they are sorted by the plug sorting plate 13, and finally enter the plug delivery channel 11 one by one. The input of the caps is similar, and will not be repeated here.

[0039] In this embodiment, the plugging and capping mechanism 5 includes a feeding rod 51 and a feeding drive assembly 52 for driving the feeding rod 51 to swing and rise and fall. A plurality of plug feeding heads 53 and a plurality of cap feeding heads 54 are arranged at intervals on the feeding rod 51. The plurality of plug feeding heads 53 and the corresponding cap feeding heads 54 form a plurality of feeding head groups. The plurality of feeding head groups and the plurality of material taking trough groups are arranged in one-to-one correspondence. A first air suction channel is provided in the feeding rod 51, and the first air suction channel is connected to each of the plug feeding heads 53 and the cap feeding heads 54. The feeding drive assembly 52 drives the feeding rod 51 to swing to above the material taking block 41, so that a group of feeding head groups swing to just above a group of material taking slot groups, and then drives the feeding rod 51 to descend. At this time, the plug feeding head 53 sucks up the plug on the plug taking slot 43, and the cap feeding head 54 sucks up the cap on the cap taking slot 44. After the material sucking is completed, the feeding drive assembly 52 drives the feeding rod 51 to rise and swing to above the bottle positioning mechanism 3, and finally puts the plug and the cap on the corresponding bottle in turn to complete the plugging and capping.

[0040] In this embodiment, the feeding drive assembly 52 includes a feeding shaft 521, a swing seat 522 arranged on the feeding shaft 521, a lifting drive 523 for driving the feeding shaft 521 to rise and fall, and a swing drive 524 for driving the feeding shaft 521 to swing. The feeding rod 51 is arranged on the swing seat 522. The feeding shaft 521 and the swing seat 522 are respectively provided with a second suction channel and a third suction channel. The third suction channel is connected to the second suction channel, and the first suction channel is connected to the third suction channel. The swing drive 524 drives the feeding rod 51 to swing, thereby driving the swing seat 522 to swing. The lifting drive 523 drives the feeding rod 51 to rise and fall, driving the swing seat 522 to rise and fall. Since the feeding rod 51 is arranged on the swing seat 522, the feeding rod 51 can be used to pick up and feed materials.

[0041] In this embodiment, two groups of feeding drive components 52 are provided, and the two groups of feeding drive components 52 are respectively connected to the two ends of the feeding rod 51. The driving force of the swing and lifting of the feeding rod 51 is increased, so that the material collection and feeding are more stable.

[0042] In this embodiment, the bottle positioning mechanism 3 includes a first positioning block 31, a second positioning block 32 and a positioning drive assembly 33. The first positioning block 31 is provided with a positioning groove 311, and the second positioning block 32 is provided with a positioning portion 312 that cooperates with the positioning groove 311 to form a positioning channel 313. The positioning drive assembly 33 is used to drive the first positioning block 31 and the second positioning block 32 to move relatively closer or farther away. After the bottle reaches between the first positioning block 31 and the second positioning block 32, the positioning drive assembly 33 drives the first positioning block 31 and the second positioning block 32 to move closer to each other. At this time, the positioning groove 311 and the positioning portion 312 cooperate to form a positioning channel 313, and the positioning channel 313 positions the bottle. After the plugging and capping are completed, the positioning drive assembly 33 drives the first positioning block 31 and the second positioning block 32 to move away from each other, and the bottle can be transported to the next process station.

[0043] In this embodiment, the positioning drive assembly 33 includes a driving shaft 331, a driven shaft 332, a synchronous belt assembly 333, and a rotary drive 334 for driving the driving shaft 331 to rotate. The driving shaft 331 and the driven shaft 332 are respectively connected to the driving wheel and the driven wheel of the synchronous belt assembly 333. The driving shaft 331 and the driven shaft 332 are both connected to an eccentric block 335, and are rotatably connected to a moving guide rod 336. The eccentric block 335 is connected to a moving seat 337, and the moving seat 337 is slidably disposed on the moving guide rod 336. The first positioning block 31 and the second positioning block 32 are respectively disposed on the corresponding moving seats 337. The rotary drive 334 drives the driving shaft 331 to rotate, and the driving shaft 331 drives the driven shaft 332 to rotate through the synchronous belt assembly 333, driving the eccentric blocks 335 on the driving shaft 331 and the driven shaft 332 to swing, and finally driving the two moving seats 337 on the driving shaft 331 and the driven shaft 332 to move closer to or away from each other. It should be noted that the position setting of the eccentric block 335 should be able to achieve this kind of movement, and an avoidance groove should be provided on the eccentric block 335.

[0044] In this embodiment, the first positioning block 31 is provided with an alignment groove 314, and the second positioning block 32 is provided with an alignment block 321 that cooperates with the alignment groove 314 for positioning. After the positioning drive assembly 33 drives the first positioning block 31 and the second positioning block 32 to approach each other, the alignment block 321 is inserted into the alignment groove 314, which facilitates the positioning groove 311 to cooperate with the positioning portion 312 to form a positioning channel 313.

[0045] Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the art can use the above disclosed technical content to make many possible changes and modifications to the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution of the present invention.

Claims

1. A plugging and capping device, comprising a plugging mechanism (1) and a capping mechanism (2) arranged in parallel, characterized in that: The invention also comprises a bottle body positioning mechanism (3), a plug and cover taking mechanism (4), and a plug pressing and covering mechanism (5); the plug pressing and covering mechanism (5) is arranged between the bottle body positioning mechanism (3) and the plug and cover taking mechanism (4); the plug and cover taking mechanism (4) is arranged between the plug conveying mechanism (1) and the cover conveying mechanism (2); the plug and cover taking mechanism (4) is used to simultaneously take the plug from the plug conveying mechanism (1) and the cover from the cover conveying mechanism (2).

2. The plugging and capping device according to claim 1, characterized in that: The plug and cover material taking mechanism (4) comprises a material taking block (41) and a moving drive assembly (42); one end of the material taking block (41) is provided with a plurality of plug taking grooves (43) arranged at intervals, and the other end is provided with a plurality of cover taking grooves (44) arranged at intervals; the plurality of plug taking grooves (43) and the corresponding cover taking grooves (44) form a plurality of material taking groove groups; the moving drive assembly (42) is used to drive the material taking block (41) to move, so that the plug taking grooves (43) in the plurality of material taking groove groups are sequentially connected with the plug delivery channel (11) of the plug delivery mechanism (1) to take materials, and the cover taking grooves (44) are sequentially connected with the cover delivery channel (21) of the cover delivery mechanism (2) to take materials.

3. The plugging and capping device according to claim 2, characterized in that: The plug removal groove (43) and the cover removal groove (44) are each provided with two, and the moving drive assembly (42) comprises a material blocking cylinder (421) and a material removal cylinder (422), the material removal cylinder (422) is arranged on the material blocking cylinder (421), and the material removal block (41) is arranged on the material removal cylinder (422).

4. The plugging and capping device according to claim 2, characterized in that: The plug delivery mechanism (1) comprises a vibrating plug feeding hopper (12), the plug feeding hopper (12) is connected to a plug sorting disk (13), the plug delivery channel (11) is connected to the discharge port of the plug sorting disk (13), and the cap delivery mechanism (2) comprises a vibrating cap feeding hopper (22), the cap feeding hopper (22) is connected to the cap sorting disk (23), and the cap delivery channel (21) is connected to the discharge port of the cap sorting disk (23).

5. The plugging and capping device according to claim 2, characterized in that: The plugging and capping mechanism (5) comprises a feeding rod (51) and a feeding drive assembly (52) for driving the feeding rod (51) to swing and rise and fall. A plurality of plug feeding heads (53) and a plurality of cap feeding heads (54) are arranged at intervals on the feeding rod (51). The plurality of plug feeding heads (53) and the corresponding cap feeding heads (54) form a plurality of feeding head groups. The plurality of feeding head groups and the plurality of material taking trough groups are arranged in a one-to-one correspondence. A first air suction channel is provided in the feeding rod (51), and the first air suction channel is connected to each of the plug feeding heads (53) and the cap feeding heads (54).

6. The plugging and capping device according to claim 5, characterized in that: The feeding drive assembly (52) comprises a feeding shaft (521), a swing seat (522) arranged on the feeding shaft (521), a lifting drive (523) for driving the feeding shaft (521) to lift and lower, and a swing drive (524) for driving the feeding shaft (521) to swing; the feeding rod (51) is arranged on the swing seat (522); a second air suction channel and a third air suction channel are respectively arranged in the feeding shaft (521) and the swing seat (522); the third air suction channel is connected to the second air suction channel, and the first air suction channel is connected to the third air suction channel.

7. The plugging and capping device according to claim 5, characterized in that: The feeding drive assembly (52) is provided with two groups, and the two groups of the feeding drive assembly (52) are respectively connected to the two ends of the feeding rod (51).

8. The plugging and capping device according to any one of claims 1 to 7, characterized in that: The bottle body positioning mechanism (3) comprises a first positioning block (31), a second positioning block (32) and a positioning drive assembly (33); the first positioning block (31) is provided with a positioning groove (311); the second positioning block (32) is provided with a positioning portion (312) which cooperates with the positioning groove (311) to form a positioning channel (313); and the positioning drive assembly (33) is used to drive the first positioning block (31) and the second positioning block (32) to move relatively closer or farther away.

9. The plugging and capping device according to claim 8, characterized in that: The positioning drive assembly (33) comprises a driving shaft (331), a driven shaft (332), a synchronous belt assembly (333) and a rotary drive (334) for driving the driving shaft (331) to rotate. The driving shaft (331) and the driven shaft (332) are respectively connected to a driving wheel and a driven wheel of the synchronous belt assembly (333). The driving shaft (331) and the driven shaft (332) are both connected to an eccentric block (335) and are rotatably connected to a movable guide rod (336). The eccentric block (335) is connected to a movable seat (337). The movable seat (337) is slidably disposed on the movable guide rod (336). The first positioning block (31) and the second positioning block (32) are respectively disposed on the corresponding movable seats (337).

10. The plugging and capping device according to claim 8, characterized in that: The first positioning block (31) is provided with an alignment groove (314), and the second positioning block (32) is provided with an alignment block (321) that cooperates with the alignment groove (314) for positioning.

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