Labeling machine clamping star wheel assembly

Abstract

This utility model relates to the field of labeling technology, specifically a clamping star wheel assembly for a labeling machine. It includes a central rotating shaft with a bushing rotatably mounted on it. A star wheel mechanism is located at the top of the central rotating shaft, and a roller mechanism is mounted on the bushing. The star wheel mechanism includes a bottom connecting plate and an upper connecting plate, both with multiple sets of jaw units. Each jaw unit includes a first jaw on the bottom connecting plate, a second jaw on the upper connecting plate, and a jaw drive rod. A dial wheel is located at the bottom end of the jaw drive rod below the first jaw. The roller mechanism includes a first roller and a second roller mounted on the bushing. The first and second jaws can be opened separately, allowing for the clamping of different diameter head and body areas of the bottle, increasing its applicability to different bottle types. Furthermore, the clamping structure itself can transport the bottle, eliminating the need for a bottle guide plate.

Description

Technical Field

[0001] This utility model relates to the field of labeling technology, specifically to a clamping star wheel assembly for a labeling machine. Background Technology

[0002] Currently, the bottle feeding star wheels used in labeling machines are usually of a fixed size. When labeling different bottle types, operators need to change to a suitable bottle feeding star wheel in advance according to the bottle type and size. At the same time, after the bottle feeding star wheel is changed, the bottle guard guide plate needs to be adjusted accordingly so that it can cooperate with the bottle feeding star wheel to complete the bottle feeding. The replacement work is time-consuming and laborious, which increases production costs. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a clamping star wheel assembly for a labeling machine.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A clamping star wheel assembly for a labeling machine includes a central rotating shaft, a bushing rotatably sleeved on the central rotating shaft, a star wheel mechanism at the top of the central rotating shaft, and a roller mechanism on the bushing and located below the star wheel mechanism.

[0006] The star wheel mechanism includes a bottom connecting plate and an upper connecting plate arranged opposite each other. Multiple sets of claw units are arranged between the bottom connecting plate and the upper connecting plate and spaced along the edge. Each claw unit includes a first claw on the bottom connecting plate, a second claw on the upper connecting plate, and a claw drive rod. The claw drive rod has a rectangular cross section. The claw drive rod is rotatably connected to the first claw and the second claw, and the claw drive rod is simultaneously clamped in the first claw and the second claw. A dial wheel is provided at the bottom end of the claw drive rod located below the first claw.

[0007] The roller mechanism includes a first roller and a second roller disposed on a bushing and located on the travel of the dial wheel, with the first roller located inside the dial wheel and the second roller located outside the dial wheel in the radial direction of the bottom connecting plate.

[0008] Compared with the prior art, the present invention, which adopts the above technical solution, has the following outstanding features: the first and second jaws can be opened separately, and the first and second jaws can clamp the head and body areas of the bottle with different diameters respectively, increasing the applicability to different bottle types. Furthermore, the clamping structure itself can transport the bottle, eliminating the need for a bottle-protecting guide plate.

[0009] As a preferred embodiment, a further technical solution of this utility model is:

[0010] Preferably, the first claw includes a fixed plate that is fixedly connected to the bottom connecting plate, and claw fixing seats are hinged to each other on the fixed plate. A tension spring is connected between the two claw fixing seats, and a star wheel claw is detachably connected to the claw fixing seat.

[0011] Preferably, the second jaw has the same structure as the first jaw, and the jaw drive rod is rotatably disposed between the fixing plate of the first jaw and the fixing plate of the second jaw, and is simultaneously clamped between the jaw fixing seat of the first jaw and the jaw fixing seat of the second jaw.

[0012] Preferably, the star wheel mechanism further includes a lifting unit, which includes a fixed shaft, a lifting bushing that is slidably mounted on the fixed shaft, an adjusting screw that is rotatably mounted on the lifting bushing, and an upper part of the fixed shaft that is hollow and has an adjusting nut that is threadedly connected to the adjusting screw at the top.

[0013] The fixed shaft is coaxially and fixedly connected to the central rotating shaft. The bottom connecting plate is fixedly sleeved on the fixed shaft, and the upper connecting plate is fixedly sleeved on the lifting shaft sleeve.

[0014] Preferably, the contact surface between the chuck fixing seat and the star wheel chuck is provided with a toothed structure, and the chuck fixing seat and the star wheel chuck are detachably connected by screws. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the clamping star wheel assembly for the labeling machine in this embodiment of the utility model. Figure 1 ;

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping star wheel assembly for the labeling machine in this embodiment of the utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the main structure of the clamping star wheel assembly for the labeling machine in this embodiment of the present invention;

[0018] Figure 4 This is a cross-sectional view of the clamping star wheel assembly for the labeling machine in this embodiment of the present invention;

[0019] Figure 5 This is a three-dimensional structural diagram of the star wheel mechanism in an embodiment of this utility model. Figure 1 ;

[0020] Figure 6 This is a three-dimensional structural diagram of the star wheel mechanism in an embodiment of this utility model. Figure 2 ;

[0021] Figure 7 This is a cross-sectional view of the star wheel mechanism in an embodiment of this utility model;

[0022] Figure 8 This is a schematic diagram of the assembly state of the star wheel mechanism and the roller mechanism in an embodiment of this utility model;

[0023] Figure 9 This is a schematic diagram of the dial structure in an embodiment of this utility model;

[0024] Figure 10 This is a schematic diagram of the claw drive rod structure in an embodiment of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Central rotating shaft; 2. Bushing; 3. Star wheel mechanism; 4. Roller mechanism; 5. Bottom connecting plate; 6. Upper connecting plate; 7. Claw unit; 8. First claw; 9. Second claw; 10. Claw drive rod; 11. Dial wheel; 12. First roller; 13. Second roller; 14. Fixing plate; 15. Claw fixing seat; 16. Tension spring; 17. Star wheel claw; 18. Lifting unit; 19. Fixed shaft; 20. Lifting bushing; 21. Adjusting screw; 22. Adjusting nut; 23. Groove structure. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. The purpose of this description is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0027] like Figures 1 to 10 As shown, this embodiment provides a clamping star wheel assembly for a labeling machine, including a central rotating shaft 1, a bushing 2 rotatably sleeved on the central rotating shaft 1, a star wheel mechanism 3 provided at the top of the central rotating shaft 1, and a roller mechanism 4 provided on the bushing 2 and located below the star wheel mechanism 3.

[0028] The star wheel mechanism 3 includes a bottom connecting plate 5 and an upper connecting plate 6 arranged opposite each other. Multiple sets of claw units 7 are arranged between the bottom connecting plate 5 and the upper connecting plate 6 and spaced along the edge. The claw unit 7 includes a first claw 8 arranged on the bottom connecting plate 5, a second claw 9 arranged on the upper connecting plate 6, and a claw drive rod 10. The claw drive rod 10 has a rectangular cross section. The claw drive rod 10 is rotatably connected to the first claw 8 and the second claw 9, and the claw drive rod 10 is simultaneously clamped in the first claw 8 and the second claw 9. A dial wheel 11 is provided at the bottom end of the claw drive rod 10 located below the first claw 8.

[0029] The roller mechanism 4 includes a first roller 12 and a second roller 13 disposed on the bushing 2 and located on the travel of the dial 11. In the radial direction of the bottom connecting plate 5, the first roller 12 is located inside the dial 11 and the second roller 13 is located outside the dial 11.

[0030] In practice, the first claw 8 includes a fixed plate 14 that is fixedly connected to the bottom connecting plate 5. Claw fixing seats 15 are hinged on the fixed plate 14. A tension spring 16 is connected between the two claw fixing seats 15. A star wheel claw 17 is detachably connected to the claw fixing seat 15.

[0031] The second jaw 9 has the same structure as the first jaw 8. The jaw drive rod 10 is rotatably disposed between the fixing plate 14 of the first jaw 8 and the fixing plate 14 of the second jaw 9, and is simultaneously clamped between the jaw fixing seat 15 of the first jaw 8 and the jaw fixing seat 15 of the second jaw 9.

[0032] The star wheel mechanism 3 also includes a lifting unit 18, which includes a fixed shaft 19. A lifting bushing 20 is slidably mounted on the fixed shaft 19. An adjusting screw 21 is rotatably mounted on the lifting bushing 20. The upper part of the fixed shaft 19 is hollow and the top end is provided with an adjusting nut 22 that is threadedly connected to the adjusting screw 21.

[0033] The fixed shaft 19 is coaxially and fixedly connected to the central rotating shaft 1. The bottom connecting plate 5 is fixedly sleeved on the fixed shaft 19, and the upper connecting plate 6 is fixedly sleeved on the lifting shaft sleeve 20. For bottles of different heights, adjustment can be made by rotating the adjusting screw 21. During rotation, the adjusting screw 21 engages with the adjusting nut 22. Under the action of the adjusting nut 22, the adjusting screw 21 drives the lifting shaft sleeve 20 to rise or fall, thereby driving the upper connecting plate 3 on the lifting shaft sleeve 20 to complete the lifting adjustment, changing the distance between the first jaw 8 and the second jaw 9, thus adapting to bottle shapes of different heights. In a specific implementation, a threaded hole can be provided circumferentially in the lifting shaft sleeve 20. A screw is screwed into the threaded hole, and the screw abuts against the fixed shaft 19, thus locking it after the lifting adjustment is completed.

[0034] The contact surface between the claw fixing seat 15 and the star wheel claw 17 is provided with a toothed structure, and the claw fixing seat 15 and the star wheel claw 17 are detachably connected by screws; the star wheel claw 17 is detachable, so that when the star wheel claw 17 is damaged or a special shaped claw is required for irregularly shaped bottles, it can be quickly replaced separately.

[0035] During implementation, bushing 2 remains stationary, while the central rotating shaft 1 is driven to rotate by a drive motor. This rotation drives the star wheel mechanism 3 to rotate, completing the bottle feeding and delivery process. Figure 9 The dial 11 shown has a slot structure 23 at its outer end, and the opening width on one side is greater than that on the other side. Specifically, it is shown in the figure. Figure 8For example, the star wheel mechanism 3 rotates counterclockwise, and the inner end of the dial wheel 23 touches the first roller 12 on the right (after which one end of the inner slot is biased towards the second roller 13 on the left), causing the pawl drive rod 10 to rotate at a certain angle, thereby driving the first pawl 8 and the second pawl 9 to open at a certain angle, so that the bottle can be fed into the first pawl 8 and the second pawl 9. After being fed in, the bottle is clamped under the action of the tension spring 16. The star wheel mechanism 3 continues to rotate. When the bottle is about to be sent out on the other side, the second roller 13 begins to contact the slot structure 23 (the side with a larger opening is located on the rear side of the rotation direction, so that the second roller 13 can disengage from the slot structure 23), causing the pawl drive rod 10 to rotate in the opposite direction and again push the first pawl 8 and the second pawl 9 to release, so that the bottle can be sent out. After the bottle is sent out, under the action of the tension spring 16, the first pawl 8 and the second pawl 9 reset and clamp the pawl drive rod 10 to complete the reset, thus completing one bottle feeding and sending action.

[0036] The above description is merely a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A clamping star wheel assembly for a labeling machine, characterized in that, It includes a central rotating shaft, on which a bushing is rotatably sleeved, a star wheel mechanism is provided at the top of the central rotating shaft, and a roller mechanism is provided on the bushing and below the star wheel mechanism; The star wheel mechanism includes a bottom connecting plate and an upper connecting plate arranged opposite each other. Multiple sets of claw units are arranged between the bottom connecting plate and the upper connecting plate and spaced along the edge. Each claw unit includes a first claw on the bottom connecting plate, a second claw on the upper connecting plate, and a claw drive rod. The claw drive rod has a rectangular cross section. The claw drive rod is rotatably connected to the first claw and the second claw, and the claw drive rod is simultaneously clamped in the first claw and the second claw. A dial wheel is provided at the bottom end of the claw drive rod located below the first claw. The roller mechanism includes a first roller and a second roller disposed on a bushing and located on the travel of the dial wheel, with the first roller located inside the dial wheel and the second roller located outside the dial wheel in the radial direction of the bottom connecting plate.

2. The clamping star wheel assembly for a labeling machine according to claim 1, characterized in that, The first claw includes a fixed plate that is fixedly connected to the bottom connecting plate. Claw fixing seats are hinged to each other on the fixed plate. A tension spring is connected between the two claw fixing seats. A star wheel claw is detachably connected to the claw fixing seat.

3. The clamping star wheel assembly for a labeling machine according to claim 2, characterized in that, The second jaw has the same structure as the first jaw. The jaw drive rod is rotatably disposed between the fixing plate of the first jaw and the fixing plate of the second jaw, and is simultaneously clamped between the jaw fixing seat of the first jaw and the jaw fixing seat of the second jaw.

4. The clamping star wheel assembly for a labeling machine according to claim 1, characterized in that, The star wheel mechanism also includes a lifting unit, which includes a fixed shaft, a lifting bushing that is slidably mounted on the fixed shaft, an adjusting screw that is rotatably mounted on the lifting bushing, and an upper part of the fixed shaft that is hollow and has an adjusting nut that is threadedly connected to the adjusting screw at the top. The fixed shaft is coaxially and fixedly connected to the central rotating shaft. The bottom connecting plate is fixedly sleeved on the fixed shaft, and the upper connecting plate is fixedly sleeved on the lifting shaft sleeve.

5. The clamping star wheel assembly for a labeling machine according to claim 2, characterized in that, The contact surface between the chuck fixing seat and the star wheel chuck is provided with a toothed structure, and the chuck fixing seat and the star wheel chuck are detachably connected by screws.

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