A capping device

Abstract

The application discloses a rolling cover device, which comprises a cover pressing head, a frame, a mounting base movably arranged on the frame, a supporting shaft assembly movably arranged on the mounting base, and a rotating shaft assembly arranged below the supporting shaft assembly, wherein a clutch structure is arranged between the supporting shaft assembly and the rotating shaft assembly. The rolling cover device can prevent the relative sliding of the aluminum plastic cover and the aluminum cover, and the rolling cover quality is good. After the rolling cover is completed, the mounting base drives the supporting shaft assembly and the bottle body to move relative to the frame, so that the bottle body is transported to a subsequent work station.

Description

Technical Field

[0001] This invention relates to the field of food and pharmaceutical packaging machinery technology, and in particular to a capping device. Background Technology

[0002] Currently, in small-batch filling, capping, and crimping production systems used in laboratories, the crimping machine typically uses a capping head that rotates the aluminum-plastic cap while the bottle body remains stationary. The crimping blade then approaches to complete the crimping of the aluminum cap. If the incoming aluminum-plastic cap material is of poor quality, it is highly likely that relative slippage will occur between the aluminum cap and the plastic cap, resulting in poor crimping quality. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a capping device that helps to prevent relative sliding between the aluminum-plastic cap and the aluminum cap and ensures the quality of the capping.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A capping device includes a capping head, a frame, and a mounting base movably mounted on the frame. It also includes a support shaft assembly and a rotating shaft assembly located below the support shaft assembly. The support shaft assembly is movably mounted on the mounting base, and a clutch structure is provided between the rotating shaft assembly and the support shaft assembly.

[0006] As a further improvement to the above technical solution: the clutch mechanism includes two friction pads, which are respectively disposed at the upper end of the rotating shaft assembly and the lower end of the support shaft assembly.

[0007] As a further improvement to the above technical solution, a friction pad is also provided at the upper end of the support shaft assembly.

[0008] As a further improvement to the above technical solution: the support shaft assembly includes a support shaft, a rolling bearing disposed on the support shaft, and an elastic element limiting sleeve disposed on the outer ring of the rolling bearing. The clutch mechanism is disposed between the support shaft and the rotating shaft assembly. An elastic element is sleeved on the outer periphery of the support shaft. A limiting groove is provided on the mounting base. The upper end of the elastic element abuts against the elastic element limiting sleeve, and the lower end of the elastic element is disposed in the limiting groove.

[0009] As a further improvement to the above technical solution: a linear bearing is provided between the support shaft and the mounting base.

[0010] As a further improvement to the above technical solution: the mounting base is provided with a bottle positioning seat, the support shaft assembly is provided with multiple sets, and the bottle positioning seat is provided with a bottle positioning hole corresponding to each set of the support shaft assembly.

[0011] As a further improvement to the above technical solution: the mounting base is detachably connected to the frame, and the bottle positioning base is detachably connected to the mounting base.

[0012] As a further improvement to the above technical solution: the rotating shaft assembly includes a rotating shaft and a rotating bushing disposed on the outer periphery of the rotating shaft, the clutch mechanism is disposed between the rotating shaft and the support shaft assembly, the lower end of the rotating shaft passes through the rotating bushing and a buffer is provided below it, and the rotating bushing is connected to a rotating drive component.

[0013] As a further improvement to the above technical solution: the buffer component is a buffer cylinder, and the piston rod of the buffer cylinder is connected to the rotating shaft through a self-aligning ball bearing.

[0014] As a further improvement to the above technical solution: the rotary drive component is a motor, the motor shaft is provided with a drive gear, the rotary bushing is provided with a driven gear, a transmission shaft is provided between the rotary bushing and the motor, and transmission gears are provided at both the upper and lower ends of the transmission shaft. The transmission gear at the lower end meshes with the drive gear, and the transmission gear at the upper end meshes with the driven gear.

[0015] Compared with the prior art, the advantages of the present invention are as follows: When the capping device disclosed in the present invention is working, the capping head applies a downward pressure to the bottle with the aluminum-plastic cap attached, thereby causing the support shaft assembly to move downward relative to the mounting base and engage with the rotating shaft assembly below. At this time, the rotating shaft assembly can drive the support shaft assembly, the bottle on the support shaft assembly, and the aluminum-plastic cap on the bottle to rotate as a whole, which can prevent the possibility of relative slippage between the aluminum-plastic cap and the aluminum cap, resulting in good capping quality. After capping is completed, the mounting base drives the support shaft assembly and the bottle to move relative to the frame, thereby transferring the bottle to the subsequent work station. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the capping device of the present invention.

[0017] Figure 2 This is a cross-sectional structural schematic diagram of the capping device of the present invention.

[0018] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0019] Figure 4 This is an enlarged structural schematic diagram of the support shaft assembly in this invention.

[0020] Figure 5 This is a three-dimensional structural schematic diagram of another embodiment of the mounting base in this invention.

[0021] The labels in the diagram represent: 1. Frame; 2. Mounting base; 21. Limiting groove; 22. Linear bearing; 23. Claw; 3. Support shaft assembly; 31. Support shaft; 32. Rolling bearing; 33. Elastic element limiting sleeve; 4. Rotary shaft assembly; 41. Rotary shaft; 42. Rotary shaft sleeve; 43. Buffer; 44. Rotary drive component; 45. Self-aligning ball bearing; 46. Drive gear; 47. Driven gear; 48. Transmission shaft; 49. Transmission gear; 5. Friction pad; 6. Elastic element; 7. Bottle positioning seat; 71. Bottle positioning hole. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Figures 1 to 5 An embodiment of the capping device of the present invention is shown. The capping device of this embodiment includes a capping head (same as the existing structure, not shown in the figure), a frame 1, and a mounting base 2 movably disposed on the frame 1 (for example, a conveyor belt can be provided on the frame 1, and the mounting base 2 is connected to the conveyor belt, thereby realizing the movement of the mounting base 2 on the frame 1). It also includes a support shaft assembly 3 and a rotating shaft assembly 4 located below the support shaft assembly 3. The support shaft assembly 3 is movably disposed on the mounting base 2, and a clutch structure is provided between the rotating shaft assembly 4 and the support shaft assembly 3.

[0024] When the capping device is in operation, the capping head applies downward pressure to the bottle with the aluminum-plastic cap attached, causing the support shaft assembly 3 to move downward relative to the mounting base 2 and engage with the rotating shaft assembly 4 below. At this time, the rotating shaft assembly 4 can drive the support shaft assembly 3, the bottle on the support shaft assembly 3, and the aluminum-plastic cap on the bottle to rotate as a whole, which can prevent the aluminum-plastic cap and the aluminum cap from sliding relative to each other, resulting in good capping quality. After capping is completed, the support shaft assembly 3 rises and separates from the rotating shaft assembly 4 below. The mounting base 2 drives the support shaft assembly 3 and the bottle to move relative to the frame 1, thereby transferring the bottle to the subsequent work station.

[0025] Furthermore, in this embodiment, the clutch mechanism includes two friction pads 5, which are respectively disposed at the upper end of the rotating shaft assembly 4 and the lower end of the support shaft assembly 3. After the support shaft assembly 3 is pressed down, the friction pad 5 at its lower end fits tightly with the friction pad 5 at the upper end of the rotating shaft assembly 4, and the rotating shaft assembly 4 can drive the support shaft assembly 3 to rotate through the friction between the two friction pads 5. The structure is simple, reliable, and easy to use.

[0026] Furthermore, in this embodiment, a friction pad 5 is also provided on the upper end of the support shaft assembly 3. When the bottle is pressed by the capping head, it can fit tightly with the friction pad 5 on the upper end of the support shaft assembly 3, which helps to prevent the bottle from rotating relative to the support shaft assembly 3, further improving reliability.

[0027] In this embodiment, the support shaft assembly 3 includes a support shaft 31, a rolling bearing 32 mounted on the support shaft 31, and an elastic element limiting sleeve 33 mounted on the outer ring of the rolling bearing 32. An elastic element 6 (e.g., a coil spring) is fitted around the outer periphery of the support shaft 31. Friction pads 5 are provided at both the upper and lower ends of the support shaft 31. A limiting groove 21 is provided on the mounting base 2. The upper end of the elastic element 6 abuts against the elastic element limiting sleeve 33, and the lower end of the elastic element 6 is located within the limiting groove 21. The rolling bearing 32 prevents the elastic element limiting sleeve 33 from obstructing the rotation of the support shaft 31, ensuring smooth rotation of the support shaft 31. When the support shaft 31 is pressed down, the elastic element 6 is compressed by the rolling bearing 32 and the elastic element limiting sleeve 33. After the capping head separates from the bottle body, the compressed elastic element 6 elongates, driving the support shaft 31 to move upwards and reset via the elastic element limiting sleeve 33 and the rolling bearing 32, preparing for the next capping operation. The structure is simple and reliable, improving the automation level of the device.

[0028] In a preferred embodiment, a linear bearing 22 is provided between the support shaft 31 and the mounting base 2. The linear bearing 22 can provide guidance for the lifting and lowering movement of the support shaft 31, ensuring the accuracy of the movement. At the same time, the frictional resistance between the linear bearing 22 and the support shaft 31 is small, which helps to ensure that the support shaft 31 can be lifted, lowered, and rotated smoothly.

[0029] Furthermore, in this embodiment, the mounting base 2 is provided with a bottle positioning seat 7, and the support shaft assembly 3 is provided with multiple sets. The bottle positioning seat 7 is provided with a bottle positioning hole 71 corresponding to each set of support shaft assemblies 3. The bottle positioning seat 7 and the bottle positioning hole 71 can play a role in positioning and protecting the bottle, ensuring the smooth progress of the capping process; the multiple sets of support shaft assemblies 3 and bottle positioning holes 71 can accommodate multiple bottles at once, which is beneficial to improving production efficiency.

[0030] Furthermore, in this embodiment, the mounting base 2 is detachably connected to the frame 1 (e.g., through threaded fasteners, snap-fit ​​structures, etc.), and the bottle positioning base 7 is detachably connected to the mounting base 2 (e.g., through threaded fasteners, snap-fit ​​structures, etc.). See details. Figure 5 By replacing different specifications of parts, the capping device can be used not only for the filling, capping, and crimping system of vials, but also for the filling and capping production system of cartridge bottles and pre-filled needles (using the jaws 23 to clamp the cartridge bottles and pre-filled needles), thus improving the applicability of the device.

[0031] Furthermore, in this embodiment, the rotating shaft assembly 4 includes a rotating shaft 41 and a rotating bushing 42 disposed on the outer periphery of the rotating shaft 41. The upper end of the rotating shaft 41 is provided with the friction pad 5, and the lower end of the rotating shaft 41 passes through the rotating bushing 42 and is provided with a buffer member 43 below it. The rotating bushing 42 is connected to a rotating drive member 44. When the support shaft 31 is pressed down, the friction pad 5 at the lower end of the support shaft 31 and the friction pad 5 at the upper end of the rotating shaft 41 are tightly fitted together, which can realize the transmission of torque. The buffer member 43 can provide a buffering effect for the rotating shaft 41, realizing flexible contact between the support shaft 31 and the rotating shaft 41, while preventing the rotating shaft 41 from moving downward after being subjected to force. The structure is simple and reasonable. Then, the rotating drive member 44 drives the rotating bushing 42 and the rotating shaft 41 to rotate as a whole, which can drive the support shaft 31 to rotate synchronously.

[0032] In a preferred embodiment, the buffer element 43 is a buffer cylinder, and the piston rod of the buffer cylinder is connected to the rotating shaft 41 via a self-aligning ball bearing 45. The buffer cylinder can provide good buffering effect, and it is technically mature and reliable. The self-aligning ball bearing 45 helps to make the axis of the piston rod coincide with the axis of the rotating shaft 41, ensuring motion accuracy, while avoiding the piston rod from hindering the rotational movement of the rotating shaft 41. The structure is simple, reasonable, and highly reliable.

[0033] Furthermore, in this embodiment, the rotary drive 44 is a motor. The motor's shaft is equipped with a driving gear 46, and the rotating sleeve 42 is equipped with a driven gear 47. A transmission shaft 48 is located between the rotating sleeve 42 and the motor. Transmission gears 49 are located at both ends of the transmission shaft 48. The lower transmission gear 49 meshes with the driving gear 46, and the upper transmission gear 49 meshes with the driven gear 47. When the friction pad 5 at the lower end of the support shaft 31 is in close contact with the friction pad 5 at the upper end of the rotating shaft 41, and the support shaft 31 needs to be rotated, the motor starts, driving the driving gear 46 to rotate. The driving gear 46 then drives the lower transmission gear 49 to rotate, thereby driving the transmission shaft 48 and the upper transmission gear 49 to rotate. The upper transmission gear 49 then drives the driven gear 47 to rotate, thus realizing the rotation of the rotating sleeve 42 and the rotating shaft 41. The transmission is reliable and can save vertical space in the device.

[0034] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the scope of the present invention, should fall within the protection scope of the present invention.

Claims

1. A capping device, comprising a capping head, a frame (1), and a mounting base (2) movably disposed on the frame (1), characterized in that: It also includes a support shaft assembly (3) for supporting the bottle and a rotating shaft assembly (4) located below the support shaft assembly (3). The support shaft assembly (3) is provided in multiple sets. The support shaft assembly (3) is movably disposed on the mounting base (2). The rotating shaft assembly (4) is located below the mounting base (2). A clutch structure is provided between the rotating shaft assembly (4) and the support shaft assembly (3). A conveyor belt is provided on the frame (1). The mounting base (2) is connected to the conveyor belt, which can drive the support shaft assembly (3) and the bottle to move relative to the frame (1) and transfer the bottle to the subsequent work station.

2. The capping device according to claim 1, characterized in that: The clutch structure includes two friction pads (5), which are respectively located at the upper end of the rotating shaft assembly (4) and the lower end of the support shaft assembly (3).

3. The capping device according to claim 2, characterized in that: The upper end of the support shaft assembly (3) is also provided with a friction pad (5).

4. The capping device according to claim 1, characterized in that: The support shaft assembly (3) includes a support shaft (31), a rolling bearing (32) disposed on the support shaft (31), and an elastic element limiting sleeve (33) disposed on the outer ring of the rolling bearing (32). The clutch structure is disposed between the support shaft (31) and the rotating shaft assembly (4). An elastic element (6) is sleeved on the outer periphery of the support shaft (31). A limiting groove (21) is provided on the mounting base (2). The upper end of the elastic element (6) abuts against the elastic element limiting sleeve (33), and the lower end of the elastic element (6) is disposed in the limiting groove (21).

5. The capping device according to claim 4, characterized in that: A linear bearing (22) is provided between the support shaft (31) and the mounting base (2).

6. The capping device according to claim 1, characterized in that: The mounting base (2) is provided with a bottle positioning seat (7), and the bottle positioning seat (7) has a bottle positioning hole (71) corresponding to each of the support shaft assemblies (3).

7. The capping device according to claim 6, characterized in that: The mounting base (2) is detachably connected to the frame (1), and the bottle positioning base (7) is detachably connected to the mounting base (2).

8. The capping device according to any one of claims 1 to 7, characterized in that: The rotating shaft assembly (4) includes a rotating shaft (41) and a rotating bushing (42) disposed on the outer periphery of the rotating shaft (41). The clutch structure is disposed between the rotating shaft (41) and the support shaft assembly (3). The lower end of the rotating shaft (41) passes through the rotating bushing (42) and a buffer (43) is provided below it. The rotating bushing (42) is connected to a rotating drive (44).

9. The capping device according to claim 8, characterized in that: The buffer (43) is a buffer cylinder, and the piston rod of the buffer cylinder is connected to the rotating shaft (41) through a self-aligning ball bearing (45).

10. The capping device according to claim 8, characterized in that: The rotary drive component (44) is a motor. The motor shaft is provided with a drive gear (46), and the rotary bushing (42) is provided with a driven gear (47). A transmission shaft (48) is provided between the rotary bushing (42) and the motor. Both ends of the transmission shaft (48) are provided with transmission gears (49). The lower transmission gear (49) meshes with the drive gear (46), and the upper transmission gear (49) meshes with the driven gear (47).

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