Automatic cap screwing equipment for canning fruit juice

Abstract

The invention discloses automatic cap screwing equipment for fruit juice canning, and belongs to the technical field of fruit juice canning cap screwing, the automatic cap screwing equipment comprises a supporting seat, a cap screwing mechanism, a cap pressing mechanism and an adjusting mechanism, two symmetrical limiting strips movably penetrate through the supporting seat, and the two limiting strips are symmetrically and fixedly connected to the upper surface of a supporting frame; the supporting frame is arranged on the inner side of the supporting seat, a cap screwing mechanism movably penetrates through the supporting frame and is used for screwing a bottle cap of canned fruit juice, an air cylinder is fixedly installed on the upper surface of the supporting seat, and the lower end of the air cylinder is connected with a cap pressing mechanism. According to the bottle cap screwing device, the distance between the four cap screwing discs can be adjusted in a self-adaptive mode according to the specifications of bottle caps, so that the four cap screwing discs can be located at the proper positions on the outer sides of the bottle caps no matter what specifications of the bottle caps make contact with the bottle caps, the bottle caps of different specifications can be efficiently and stably screwed, in addition, the heights of the four cap screwing discs can be adjusted in a self-adaptive mode, and the bottle cap screwing efficiency is improved. Therefore, the self-adaptive filling machine is adaptive to filling bottles with different specifications.

Description

Technical Field

[0001] The invention relates to the technical field of canning capping, in particular to automatic capping equipment for canning juice. Background Art

[0002] In the early production process of canned juice, the capping work was mainly done manually, which was inefficient. Because people had limited physical strength and energy, they were easily fatigued after working for a long time, which slowed down the capping speed. In addition, it was difficult to ensure that each bottle cap was tightened to the appropriate degree by manual operation. The caps might be too loose or too tight. Too loose caps would cause the juice to leak easily during storage and transportation, causing product loss and pollution. Too tight caps might damage the bottles or caps, affecting the product appearance and the convenience of subsequent opening. The progress of mechanical manufacturing technology has provided a foundation for the development of automatic capping equipment for juice canning. High-precision mechanical processing technology enables the parts of the equipment to meet higher precision requirements, thereby ensuring the stability and reliability of the equipment operation. The existing automatic capping equipment for canned juice still has the following technical problems when in use, such as: 1. When the existing automatic capping equipment for canned juice is in use, generally four capping wheels rotate in the same direction, and the four capping wheels are divided into two groups. The two groups of capping wheels are close to each other to clamp the bottle cap, thereby tightening the bottle cap. However, the capping wheels in the same group cannot be close to each other or away from each other, which leads to limitations in use. For example, for small or large bottle caps, when the capping wheel contacts the bottle cap, it cannot be guaranteed to be within a suitable range outside the bottle cap, which is not conducive to stable and effective tightening of the bottle cap; 2. When the existing automatic capping equipment for canned juice is in use, the four capping wheels cannot adjust the height adaptively, which requires manual adjustment of the height of the capping wheels when changing the specifications of the canned bottles, thereby reducing production efficiency; Therefore, a kind of automatic capping equipment for juice canning is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide an automatic capping device for juice canning to solve the problem that the existing automatic capping device for juice canning mentioned in the above background technology cannot adjust the distance between the capping wheels in the same group and cannot adaptively adjust the height of the capping wheels.

[0004] To achieve the above object, the present invention provides the following technical solutions: The invention discloses an automatic capping device for canning juice, comprising a support seat, a capping mechanism, a capping mechanism and an adjusting mechanism. The support seat is provided with two symmetrical limit bars which are movably penetrated, and the two limit bars are symmetrically fixedly connected to the upper surface of a support frame. The support frame is arranged on the inner side of the support seat, and the support frame is provided with a capping mechanism which is movably penetrated, and is used for tightening the bottle cap of the canned juice. A cylinder is fixedly installed on the upper surface of the support seat, and a capping mechanism is connected to the lower end of the cylinder, and is used for pressing the bottle cap of the canned juice. The capping mechanism is connected to the capping mechanism through the adjusting mechanism, and the capping mechanism is fixedly connected to the lower surface of the support frame through the fixing bar, and is used for adjusting the position of the capping mechanism, so as to facilitate the capping of canned juice bottles of different shapes.

[0005] Preferably, the cover screwing mechanism includes a movable tube and two slide grooves, four of the two slide grooves are distributed at equal angles on the lower surface of the support frame, and the two slide grooves pass through the inner and outer sides of the support frame, each of the two slide grooves is rollingly connected with a group of roller assemblies, and each group of roller assemblies is symmetrically fixedly connected to the outer side of the corresponding support sleeve, the support sleeve is movably penetrated by the corresponding upper end of the movable tube, and the lower end of the movable tube is movably extended into the upper end of the connecting rod, the upper end of the connecting rod is coaxially provided with a follower hole, and the lower end of the follower rod is extended into the follower hole, the upper end of the follower rod is coaxially fixedly connected to the inner side of the lower end of the movable tube, the lower end of the connecting rod is coaxially fixedly connected with a cover screwing plate, and the outer side of the lower end of the connecting rod is threadedly connected with an adjusting sleeve, and the adjusting sleeve bearing is connected to the outer side of the lower end of the movable tube.

[0006] Preferably, the follower hole and the follower rod are mutually matching prismatic structures, which are used to limit the position of the connecting rod, thereby restricting its rotation.

[0007] Preferably, a rubber sleeve is provided on the outer side of the cap screwing plate to increase the friction between the cap screwing plate and the bottle cap of the juice can bottle.

[0008] Preferably, the pressure cover mechanism includes a support tube and a spring 1, the support tube is coaxially fixedly connected to the lower end of the cylinder, and the support tube movably passes through the support frame, the inner side of the lower end of the support tube movably extends into the upper end of the support rod, and the lower end bearing of the support rod is connected to the pressure cover plate, a spring 1 is arranged between the upper end of the support rod and the inner top end of the support tube, and a limiting hole is coaxially arranged at the upper end of the support rod, the lower end of the limiting rod is movably extended into the limiting hole, and the upper end of the limiting rod is coaxially fixedly connected to the inner top end of the support tube, and the spring 1 is arranged on the outside of the limiting rod, the outer side of the lower end of the support rod is coaxially fixedly connected to an X-shaped support frame, and the X-shaped support frame is symmetrically provided with 4 displacement through grooves about its axis.

[0009] Preferably, the four displacement grooves are arranged in a one-to-one correspondence with the four slide grooves, and each displacement groove is movably penetrated by a corresponding movable tube, and the outer diameter of the part where the movable tube penetrates the displacement groove is consistent with the inner diameter of the displacement groove, so as to limit the moving path of the movable tube.

[0010] Preferably, the fixing strips are fixedly connected to the X-shaped support frame at equal angles to stably connect the support rod and the support frame.

[0011] Preferably, the adjustment mechanism includes a slide groove 1 and a support shaft, the four slide grooves 1 are distributed at equal angles on the lower surface of the support frame, and the slide groove 1 is set on both sides of the support frame, the four slide grooves 1 and the four slide grooves 2 are distributed in a cross shape, and each slide groove 1 is also connected to the support sleeve through a roller assembly, the support sleeve in the slide groove 1 is penetrated by the corresponding support shaft bearing, and the upper and lower outer ends of the support shaft are respectively connected to the upper end and the middle upper end of the movable tube through the upper belt transmission structure and the lower belt transmission structure, and only one of the upper ends of the four movable tubes is installed with a servo motor, and the upper end of the servo motor is fixed A fixed connection limit block is provided, the limit block is slidably connected in the limit groove, and the limit groove is arranged on the upper surface of the support frame, and the limit groove runs through the inner and outer sides of the support frame, the four side surfaces of the support frame are provided with mounting holes, and the mounting hole of each side surface has an end portion of the corresponding cross support frame movably extended into the horizontal direction, the upper and lower ends of the support shaft are fixedly connected with a follower block, and each follower block is provided with an oblique groove, one end of the corresponding U-shaped frame is slidably connected in the oblique groove, and the other end of the U-shaped frame is fixedly connected to the outer side of the support tube, and the follower block on the same side is fixedly connected to the end portion of the corresponding cross support frame in the vertical direction.

[0012] Preferably, the upper belt drive structure and the lower belt drive structure are both composed of a drive belt and a drive plate, the drive plates on the upper belt drive structure and the lower belt drive structure are coaxially fixedly connected to the movable tube, and the drive plates on the upper belt drive structure and the lower belt drive structure are penetrated by support shaft bearings.

[0013] Preferably, a reset mechanism is provided in both the first and second slide grooves, and the reset mechanism includes a positioning shaft, a positioning plate, a positioning tube and two springs. Each of the support sleeves is fixedly connected to one end of the corresponding positioning shaft, and the other end of the positioning shaft can be movably extended to the inner side of one end of the positioning tube. The positioning tube is fixedly arranged in each of the first and second slide grooves, and a positioning plate is coaxially fixedly connected to the outer side of the positioning shaft, and two springs are provided between the positioning plate in the first or second slide groove and its inner end portion. The structure formed by the eight groups of positioning shafts and positioning tubes is also distributed in a cross-shaped pattern.

[0014] Compared with the prior art, the invention has the following beneficial effects: the automatic capping device for canned juice can not only adaptively adjust the distance between the four capping discs according to the specifications of the bottle caps, so that no matter what specifications of the bottle caps are, the four capping discs can be in a suitable position outside the bottle caps when they contact with the bottle caps, thereby facilitating efficient and stable tightening of bottle caps of different specifications, but also adaptively adjust the heights of the four capping discs, so that it can adaptively adapt to canned bottles of different specifications: 1. Under the action of the cylinder, the capping plate gradually approaches the bottle cap. When it presses the bottle cap and does not move anymore, the height of the support frame will also be fixed. At this time, since the support frame is connected to the movable tube through the roller assembly and the support sleeve, the height of the movable tube is also fixed, so that the height of the capping plate is fixed. At this time, when the capping plates move relative to each other, they can just contact the bottle cap, so that they can adaptively adapt to canned bottles of different specifications. Compared with the previous manual adjustment of the height of the capping plate, it saves time and improves production efficiency. 2. After the capping plate contacts the bottle cap, the cylinder continues to work and the support tube continues to move downward, so that the support rod gradually moves toward the inside of the support tube, and the spring inside the support tube gradually recovers from the stretched state and is compressed. During the downward movement of the support tube, the U-shaped frame moves downward synchronously, so that under the action of the inclined groove, the four support shafts are close to each other, and the four capping plates are close to each other, so that no matter what type of bottle cap, the four capping plates can contact the appropriate position on it, which is helpful to efficiently and stably tighten bottle caps of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the connection structure between the support frame and the limit block of the present invention; Figure 4 This is a schematic diagram of the connection structure between the support frame and the servo motor of the present invention; Figure 5 It is a schematic diagram of a partial cross-sectional connection structure of the present invention; Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of point A; Figure 7 It is a schematic diagram of the connection structure between the support frame and the cross support frame of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of point B in the middle; Fig. 9 It is a schematic diagram of the cross-sectional connection structure of the movable tube of the present invention; Fig.10 For the present invention Fig. 9 The schematic diagram of the enlarged structure of point C in the middle; Fig.11 It is a schematic diagram of the connection structure between the support frame and the support sleeve of the present invention.

[0016] In the figure: 1. support seat; 2. limit strip; 3. support frame; 4. cylinder; 5. cross support frame; 6. movable pipe; 7. X-shaped support frame; 8. cover screwing plate; 9. cover pressing plate; 10. fixing strip; 11. limit slot; 12. limit block; 13. support tube; 14. servo motor; 15. upper belt transmission structure; 16. slide slot one; 17. slide slot two; 18. displacement slot; 19. support shaft; 20. support rod; 21. limit hole; 22. limit rod; 23. spring one; 24. lower belt transmission structure; 25. follower block; 26. inclined slot; 27. U-shaped frame; 28. mounting hole; 29. ​​roller assembly; 30. support sleeve; 31. connecting rod; 32. adjusting sleeve; 33. follower hole; 34. follower rod; 35. positioning shaft; 36. positioning plate; 37. positioning tube; 38. spring two. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 11 , the present invention provides the following technical solutions: Embodiment 1: In order to solve the problem that the automatic capping equipment for canned juice cannot adaptively adjust the height of the capping wheel, the following technical solution is provided, specifically, The invention discloses an automatic capping device for canning juice, comprising a support base 1, a capping mechanism, a capping mechanism and an adjusting mechanism. The support base 1 is provided with two symmetrical limit bars 2 which are movably penetrated, and the two limit bars 2 are symmetrically fixedly connected to the upper surface of a support frame 3. The support frame 3 is arranged on the inner side of the support base 1, and the support frame 3 is provided with a capping mechanism which is movably penetrated, and is used for tightening the bottle cap of the canned juice. A cylinder 4 is fixedly installed on the upper surface of the support base 1, and the lower end of the cylinder 4 is connected with a capping mechanism, and is used for pressing the bottle cap of the canned juice.

[0019] The cover screwing mechanism includes a movable tube 6 and a second slide groove 17. The four second slide grooves 17 are distributed at equal angles on the lower surface of the support frame 3, and the second slide groove 17 passes through the inner and outer sides of the support frame 3. A group of roller assemblies 29 are rollingly connected in each of the second slide grooves 17, and each group of roller assemblies 29 is symmetrically fixedly connected to the outer side of the corresponding support sleeve 30. The corresponding upper end of the movable tube 6 is movably passed through the support sleeve 30, and the lower end of the movable tube 6 is movably extended into the upper end of the connecting rod 31. The upper end of the connecting rod 31 is coaxially provided with a follower hole 33, and the lower end of the follower rod 34 is extended into the follower hole 33. The upper end of the follower rod 34 is coaxially fixedly connected to the inner side of the lower end of the movable tube 6, the lower end of the connecting rod 31 is coaxially fixedly connected to the cover screwing plate 8, and the outer side of the lower end of the connecting rod 31 is threadedly connected with The adjusting sleeve 32 is provided, and the bearing of the adjusting sleeve 32 is connected to the outer side of the lower end of the movable tube 6. When the servo motor 14 is running, the movable tube 6 can be driven to rotate through the upper belt transmission structure 15 and the lower belt transmission structure 24, thereby driving the four capping discs 8 to rotate, so that the bottle cap can be screwed tightly on the opening of the canned bottle. The follower hole 33 and the follower rod 34 are mutually matching prismatic structures, which are used to limit the connecting rod 31, thereby limiting its rotation. The position between the connecting rod 31 and the movable tube 6 can be adjusted by rotating the adjusting sleeve 32, so that the position of the capping disc 8 can be adjusted, so that when the bottle cap of the special-shaped canned bottle needs to be tightened, the height of the capping disc 8 is prevented from being too low, resulting in the special-shaped canned bottle hindering the tightening of the bottle cap (for example, the bottle cap of the triangular prism canned bottle is thin, if the cap is screwed The height of the plate 8 is too low, and the triangular prism canned bottle will hinder the screwing plate 8 from contacting the bottle cap). A rubber sleeve is arranged on the outer side of the screwing plate 8 to increase the friction between the screwing plate 8 and the bottle cap of the juice canned bottle. The capping mechanism includes a support tube 13 and a spring 23. The support tube 13 is coaxially fixedly connected to the lower end of the cylinder 4, and the support tube 13 movably penetrates the support frame 3. The inner side of the lower end of the support tube 13 movably extends into the upper end of the support rod 20, and the lower end bearing of the support rod 20 is connected to the capping plate 9. A spring 23 is arranged between the upper end of the support rod 20 and the inner top end of the support tube 13, and the upper end of the support rod 20 is coaxially provided with a limiting hole 21, and the limiting hole 21 movably extends into the lower end of the limiting rod 22, and the upper end of the limiting rod 22 is coaxially fixedly connected At the inner top end of the support tube 13, and the spring 1 23 is arranged on the outer side of the limit rod 22, the outer side of the lower end of the support rod 20 is coaxially fixedly connected with an X-shaped support frame 7, and the X-shaped support frame 7 is symmetrically provided with four displacement through grooves 18 about its axis. Under the action of the cylinder 4, the support frame 3 and the capping plate 9 will move downward. When the capping plate 9 contacts and presses the bottle cap, the capping plate 9 will stop moving downward. At this time, the support frame 3 stops descending synchronously, and the movable tube 6 connected by the roller assembly 29 and the support sleeve 30 will also stop descending synchronously, so that the height of the screwing plate 8 at this time is exactly consistent with the height of the bottle cap, so that after the screwing plates 8 are close to each other, they can stably contact the bottle cap, which is helpful to adaptively adapt to the use of canned bottles of different heights.The problem of reducing production efficiency due to manual adjustment in the past is avoided. The four displacement slots 18 are arranged one by one with the four slide slots 17, and each displacement slot 18 is movably penetrated by a corresponding movable tube 6. The outer diameter of the part where the movable tube 6 penetrates the displacement slot 18 is consistent with the inner diameter of the displacement slot 18, which is used to limit the moving path of the movable tube 6. The fixing bar 10 is fixedly connected to the X-shaped support frame 7 at equal angles, which is used to stably connect the support rod 20 and the support frame 3.

[0020] Embodiment 2: In order to solve the problem that the automatic capping equipment for canned juice cannot adjust the distance between the capping wheels in the same group, thereby causing the capping wheels to fail to contact the bottle caps at the appropriate position, the following technical solution is provided. Specifically, the capping mechanism is connected to the capping mechanism through an adjustment mechanism, and the capping mechanism is fixedly connected to the lower surface of the support frame 3 through a fixing bar 10, which is used to adjust the position of the capping mechanism so as to facilitate the capping of juice cans of different shapes.

[0021] The adjustment mechanism includes a slide 16 and a support shaft 19. Four slides 16 are distributed at equal angles on the lower surface of the support frame 3, and the slide 16 is set on both sides of the support frame 3. The four slides 16 and the four slides 17 are distributed in a cross shape, and each slide 16 is also connected to the support sleeve 30 through a roller assembly 29. The support sleeve 30 in the slide 16 is penetrated by the corresponding support shaft 19 bearing, and the upper and lower outer ends of the support shaft 19 are respectively connected to the upper end and the middle upper end of the movable tube 6 through the upper belt transmission structure 15 and the lower belt transmission structure 24. Only one of the upper ends of the four movable tubes 6 is installed with a servo motor 14, and the upper end of the servo motor 14 is fixedly connected to the limit block 12, and the limit block 1 2 is slidably connected in the limiting groove 11, and the limiting groove 11 is set on the upper surface of the support frame 3, and the limiting groove 11 runs through the inner and outer sides of the support frame 3, the four sides of the support frame 3 are provided with mounting holes 28, and the end of the corresponding cross support frame 5 in the horizontal direction is movably extended into the mounting hole 28 of each side, the upper and lower ends of the support shaft 19 are fixedly connected with a follower block 25, and each follower block 25 is provided with an inclined groove 26, and the inclined groove 26 is slidably connected with one end of the corresponding U-shaped frame 27, and the other end of the U-shaped frame 27 is fixedly connected to the outer side of the support pipe 13, and the follower block 25 on the same side is fixedly connected to the end of the corresponding cross support frame 5 in the vertical direction. After the support frame 3 stops descending, the cylinder 4 continues to act, and the support The tube 13 will continue to descend, and the relative support rod 20 will gradually move into the support tube 13, so that the spring 23 is reset from the stretched state and gradually compressed. In the process of the support tube 13 descending, the U-shaped frame 27 will move in the inclined groove 26, so that the four support shafts 19 are close to each other, driving the four movable tubes 6 to be close to each other, thereby realizing the four cap screwing plates 8 to be close to each other, so that the four cap screwing plates 8 can contact with the appropriate position of the bottle cap to ensure stable and effective tightening of the bottle cap. The upper belt transmission structure 15 and the lower belt transmission structure 24 are both composed of a transmission belt and a transmission plate. The transmission plates on the upper belt transmission structure 15 and the lower belt transmission structure 24 are coaxially fixedly connected with the movable tube 6, and the upper belt transmission structure 15 and the transmission plate on the lower belt transmission structure 24 are penetrated by the support shaft 19 bearing, and a reset mechanism is arranged in the slide groove 16 and the slide groove 2 17, and the reset mechanism includes a positioning shaft 35, a positioning plate 36, a positioning tube 37 and a spring 2 38. One end of the positioning shaft 35 corresponding to it is fixedly connected in each support sleeve 30, and the other end of the positioning shaft 35 is movably extended to the inner side of one end of the positioning tube 37, and the positioning tube 37 is fixedly arranged in each slide groove 16 and the slide groove 2 17. The outer side of the positioning shaft 35 is coaxially fixedly connected with the positioning plate 36, and a spring 2 38 is arranged between the positioning plate 36 in the slide groove 16 or the slide groove 2 17 and its inner end. The structure composed of 8 groups of positioning shafts 35 and positioning tubes 37 is also distributed in a cross shape.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] 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. An automatic capping device for canning juice, comprising a support base (1), a capping mechanism, a capping mechanism and an adjusting mechanism, characterized in that: The support seat (1) is provided with two symmetrical limiting bars (2) movably extending therethrough, and the two limiting bars (2) are symmetrically fixedly connected to the upper surface of the support frame (3); the support frame (3) is arranged on the inner side of the support seat (1), and a capping mechanism movably extending therethrough is provided on the support frame (3) for tightening the bottle cap of the canned juice; a cylinder (4) is fixedly mounted on the upper surface of the support seat (1), and a capping mechanism is connected to the lower end of the cylinder (4) for pressing the bottle cap of the canned juice; the capping mechanism is connected to the capping mechanism via an adjusting mechanism, and the capping mechanism is fixedly connected to the lower surface of the support frame (3) via a fixing bar (10) for adjusting the position of the capping mechanism, so as to facilitate capping of canned juice bottles of different shapes.

2. The automatic capping device for canned juice according to claim 1, characterized in that: The cap screwing mechanism comprises a movable tube (6) and two slide grooves (17), wherein four of the two slide grooves (17) are distributed at equal angles on the lower surface of the support frame (3), and the two slide grooves (17) penetrate the inner and outer sides of the support frame (3), and each of the two slide grooves (17) is rotatably connected to a group of roller assemblies (29), and each group of roller assemblies (29) is symmetrically fixedly connected to the outer side of the corresponding support sleeve (30), and the upper end of the corresponding movable tube (6) is movably penetrated in the support sleeve (30), and the lower end of the movable tube (6) is movably connected to the outer side of the corresponding support sleeve (30). The upper end of a connecting rod (31) is inserted into the movable tube (6), the upper end of the connecting rod (31) is coaxially provided with a follower hole (33), and the lower end of a follower rod (34) is inserted into the follower hole (33), the upper end of the follower rod (34) is coaxially fixedly connected to the inner side of the lower end of the movable tube (6), the lower end of the connecting rod (31) is coaxially fixedly connected to a screw cover plate (8), the outer side of the lower end of the connecting rod (31) is threadedly connected to an adjusting sleeve (32), and the adjusting sleeve (32) is bearing-connected to the outer side of the lower end of the movable tube (6).

3. The automatic capping device for canned juice according to claim 2, characterized in that: The follower hole (33) and the follower rod (34) are mutually matching prismatic structures and are used to limit the position of the connecting rod (31), thereby limiting its rotation.

4. The automatic capping device for canned juice according to claim 3, characterized in that: A rubber sleeve is provided on the outer side of the cap screwing plate (8) for increasing the friction between the cap screwing plate (8) and the bottle cap of the juice can bottle.

5. The automatic capping device for canned juice according to claim 4, characterized in that: The cover pressing mechanism comprises a support tube (13) and a spring (23); the support tube (13) is coaxially fixedly connected to the lower end of the cylinder (4), and the support tube (13) movably penetrates the support frame (3); the inner side of the lower end of the support tube (13) movably extends into the upper end of the support rod (20), and the lower end bearing of the support rod (20) is connected to the cover pressing plate (9); a spring (23) is arranged between the upper end of the support rod (20) and the inner top end of the support tube (13), and the support rod (20) is connected to the cover pressing plate (9); A limiting hole (21) is coaxially arranged at the upper end of the support rod (20), and the limiting hole (21) movably extends into the lower end of the limiting rod (22), and the upper end of the limiting rod (22) is coaxially fixedly connected to the inner top end of the support tube (13), and a spring (23) is arranged on the outer side of the limiting rod (22), and the outer side of the lower end of the support rod (20) is coaxially fixedly connected to an X-shaped support frame (7), and the X-shaped support frame (7) is symmetrically arranged with four displacement through grooves (18) about its axis.

6. The automatic capping device for canned juice according to claim 5, characterized in that: The four displacement slots (18) are arranged in one-to-one correspondence with the four slide slots (17), and each displacement slot (18) is movably penetrated by a corresponding movable tube (6), and the outer diameter of the portion where the movable tube (6) penetrates the displacement slot (18) matches the inner diameter of the displacement slot (18), so as to limit the moving path of the movable tube (6).

7. The automatic capping device for canned juice according to claim 6, characterized in that: The fixing strips (10) are fixedly connected to the X-shaped support frame (7) at equal angles, and are used to stably connect the support rod (20) and the support frame (3).

8. The automatic capping device for canned juice according to claim 7, characterized in that: The adjustment mechanism comprises a slide groove (16) and a support shaft (19), wherein four slide grooves (16) are distributed at equal angles on the lower surface of the support frame (3), and the slide grooves (16) are arranged on both sides of the support frame (3), and the four slide grooves (16) and the four slide grooves (17) are distributed in a cross shape, and each slide groove (16) is also connected to a support sleeve (30) through a roller assembly (29), and the support sleeve (30) in the slide groove (16) is penetrated by a corresponding support shaft (19) bearing, and the upper outer side and the lower outer side of the support shaft (19) are respectively connected to the upper end and the middle upper end of the movable tube (6) through an upper belt transmission structure (15) and a lower belt transmission structure (24), and only one of the upper ends of the four movable tubes (6) is installed with a servo motor (14), and the upper end of the servo motor (14) is fixed A limit block (12) is connected, the limit block (12) is slidably connected in the limit groove (11), and the limit groove (11) is arranged on the upper surface of the support frame (3), and the limit groove (11) passes through the inner and outer sides of the support frame (3), the four side surfaces of the support frame (3) are provided with mounting holes (28), and the end of the corresponding cross support frame (5) in the horizontal direction is movably extended into the mounting hole (28) of each side surface, the upper and lower ends of the support shaft (19) are fixedly connected with a follower block (25), and each follower block (25) is provided with an inclined groove (26), one end of a corresponding U-shaped frame (27) is slidably connected in the inclined groove (26), and the other end of the U-shaped frame (27) is fixedly connected to the outer side of the support tube (13), and the follower block (25) on the same side is fixedly connected to the end of the corresponding cross support frame (5) in the vertical direction.

9. The automatic capping device for canned juice according to claim 8, characterized in that: The upper belt transmission structure (15) and the lower belt transmission structure (24) are both composed of a transmission belt and a transmission disc. The transmission discs on the upper belt transmission structure (15) and the lower belt transmission structure (24) are coaxially fixedly connected to the movable tube (6), and the transmission discs on the upper belt transmission structure (15) and the lower belt transmission structure (24) are penetrated by the bearing of the support shaft (19).

10. The automatic capping device for canned juice according to claim 9, characterized in that: A reset mechanism is provided in the first slide groove (16) and the second slide groove (17), and the reset mechanism includes a positioning shaft (35), a positioning plate (36), a positioning tube (37) and a second spring (38). One end of the positioning shaft (35) corresponding to the positioning shaft (35) is fixedly connected in each of the support sleeves (30), and the other end of the positioning shaft (35) is movably extended into the inner side of one end of the positioning tube (37). The positioning tube (37) is fixedly provided in each of the first slide groove (16) and the second slide groove (17). The outer side of the positioning shaft (35) is coaxially fixedly connected with the positioning plate (36), and a second spring (38) is provided between the positioning plate (36) in the first slide groove (16) or the second slide groove (17) and its inner end. The structure formed by the eight groups of the positioning shafts (35) and the positioning tubes (37) is also distributed in a cross-shaped pattern.

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