Multi-stage travel mechanism

Abstract

This utility model belongs to the field of cigarette repair technology and discloses a multi-stage stroke mechanism. The multi-stage stroke mechanism includes a base, a rotating shaft, a support assembly, and a drive component. The rotating shaft is movably mounted on the base and has a conical eccentric cam. The support assembly is slidably fitted with the base, and one end of the support assembly is connected to a movable seat. The conical eccentric cam abuts against the other end of the support assembly. The drive component drives the rotating shaft to move the conical eccentric cam along the axis of the rotating shaft and can drive the rotating shaft and the conical eccentric cam to rotate synchronously. When the conical eccentric cam moves along the axis of the rotating shaft, it causes the support assembly and the movable seat to move up and down. Driving the rotating shaft to rotate the conical eccentric cam allows the support assembly and the movable seat to abut at different heights, thus controlling the stroke. This simplifies the structure and reduces space occupation. By continuously adjusting the stroke using the rotating shaft and the conical eccentric cam, and precisely controlling the position of the movable seat, the applicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of cigarette repair technology, and in particular to a multi-stage stroke mechanism. Background Technology

[0002] Cigarette maintenance refers to the management, upkeep, repair, and debugging of cigarette production equipment to ensure its normal operation and product quality. Cigarette equipment is a crucial component of tobacco production, and its performance and condition directly impact production efficiency and product quality.

[0003] In cigarette repair, multi-stage stroke mechanisms are often required to efficiently and safely complete various operations. However, existing multi-stage stroke mechanisms are complex in structure, occupy a large amount of space, and are difficult to adjust, resulting in poor applicability.

[0004] Therefore, there is an urgent need to provide a multi-stage stroke mechanism to simplify the structure, reduce the space occupied, and enable stroke adjustment, thereby improving applicability. Utility Model Content

[0005] The purpose of this invention is to provide a multi-segment stroke mechanism that simplifies the structure, reduces the space occupied, and enables stroke adjustment, thereby improving applicability.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] This utility model provides a multi-stage stroke mechanism, which includes:

[0008] A base and a rotating shaft that is movably inserted through the base, the rotating shaft being provided with a tapered eccentric cam;

[0009] A support assembly is slidably engaged with the base, one end of the support assembly is connected to a movable seat, and the conical eccentric cam abuts against the other end of the support assembly;

[0010] A driving component is used to drive the rotating shaft to move the tapered eccentric cam along the axial direction of the rotating shaft, and to drive the rotating shaft and the tapered eccentric cam to rotate synchronously.

[0011] As an optional technical solution for a multi-stage stroke mechanism, it also includes a shaft connector and a keyless bushing. One end of the shaft connector is detachably connected to the drive component, and the other end is detachably connected to the rotating shaft through the keyless bushing.

[0012] As an optional technical solution for a multi-stage stroke mechanism, it also includes a ball bushing disposed on the base, wherein the rotating shaft slides through the ball bushing and rotates with the base through the ball bushing.

[0013] As an optional technical solution for a multi-stage stroke mechanism, at least two ball bushings are provided at intervals, and the tapered eccentric cam is located between the two ball bushings.

[0014] As an optional technical solution for a multi-stage stroke mechanism, the conical eccentric cam is detachably mounted on the rotating shaft.

[0015] As an optional technical solution for a multi-stage stroke mechanism, the support assembly includes a lifting plate, on which rollers are provided that abut against the conical eccentric cam.

[0016] As an optional technical solution for a multi-stage stroke mechanism, the support component further includes:

[0017] The guide rod is connected to the lifting plate at one end and to the movable seat at the other end.

[0018] A sliding bearing is embedded in the base, and the guide rod slides through the sliding bearing.

[0019] As an optional technical solution for a multi-stage stroke mechanism, at least two guide rods are provided at intervals.

[0020] As an optional technical solution for a multi-stage stroke mechanism, the driving component includes a cylinder and a flow rate regulator, wherein the flow rate regulator is disposed on the cylinder for adjusting the operating speed of the cylinder.

[0021] As an optional technical solution for a multi-stage stroke mechanism, the base is also provided with a stop pin, which is used to stop the rotating shaft.

[0022] Beneficial effects:

[0023] This utility model provides a multi-segment stroke mechanism, which includes a base, a rotating shaft, a support assembly, and a drive component. The rotating shaft is movably mounted on the base and has a conical eccentric cam. The support assembly is slidably engaged with the base, and one end of the support assembly is connected to a movable seat. The conical eccentric cam abuts against the other end of the support assembly. The drive component drives the rotating shaft to move the conical eccentric cam along the axis of the rotating shaft and can drive the rotating shaft and the conical eccentric cam to rotate synchronously. By setting the rotating shaft and the conical eccentric cam to cooperate, when the conical eccentric cam moves along the axis of the rotating shaft, it drives the support assembly and the movable seat to move up and down. By driving the rotating shaft to rotate the conical eccentric cam, the support assembly and the movable seat can be brought to different heights. This also allows control of the stroke of the multi-segment stroke mechanism, simplifies the structure, reduces space occupation, and allows continuous adjustment of the stroke and precise control of the position of the movable seat using only the drive component to drive the rotating shaft and the conical eccentric cam, thus improving applicability. Attached Figure Description

[0024] Figure 1This is a schematic diagram of the structure of the multi-segment stroke mechanism provided in this embodiment of the utility model;

[0025] Figure 2 This is a cross-sectional view of the multi-segment stroke mechanism provided in this embodiment of the utility model;

[0026] Figure 3 yes Figure 2 A magnified view of a portion of point A in the middle.

[0027] In the picture:

[0028] 10. Base; 11. Base plate; 12. Bracket; 121. Ball bushing; 122. Stop pin; 123. Fixing plate;

[0029] 20. Drive unit; 21. Cylinder; 22. Flow rate regulator;

[0030] 30. Rotary shaft; 40. Conical eccentric cam;

[0031] 51. Shaft joint; 52. Keyless shaft bushing;

[0032] 60. Support assembly; 61. Lifting plate; 62. Rollers; 63. Guide rod; 64. Sliding bearing;

[0033] 70. Portable seat. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] like Figures 1 to 3 As shown, this embodiment provides a multi-segment stroke mechanism, which includes a base 10, a rotating shaft 30, a support assembly 60, and a drive member 20. The rotating shaft 30 is movably mounted on the base 10, and a tapered eccentric cam 40 is provided on the rotating shaft 30. The support assembly 60 is slidably engaged with the base 10, and one end of the support assembly 60 is connected to a movable seat 70. The tapered eccentric cam 40 abuts against the other end of the support assembly 60. The drive member 20 is used to drive the rotating shaft 30 to move the tapered eccentric cam 40 along the axial direction of the rotating shaft 30, and can drive the rotating shaft 30 and the tapered eccentric cam 40 to rotate synchronously.

[0039] By setting the rotating shaft 30 and the tapered eccentric cam 40 to cooperate, when the tapered eccentric cam 40 moves along the axis of the rotating shaft 30, it drives the support assembly 60 and the moving seat 70 to move up and down. By driving the rotating shaft 30 to drive the tapered eccentric cam 40 to rotate, the support assembly 60 and the moving seat 70 are brought to different heights. The stroke of the multi-stage stroke mechanism can also be controlled, which simplifies the structure and reduces the space occupied. The stroke can be continuously adjusted and the position of the moving seat 70 can be precisely controlled by using only the drive component 20 to drive the rotating shaft 30 and the tapered eccentric cam 40, thus improving the applicability.

[0040] To limit the movement distance of the rotating shaft 30 along the first direction, a stop pin 122 is also provided on the base 10. The stop pin 122 is used to stop the rotating shaft 30. By setting the stop pin 122 to limit the position of the rotating shaft 30, the risk of the rotating shaft 30 deviating or losing control can be reduced, effectively improving the stability and safety of the multi-stage stroke mechanism.

[0041] Specifically, the base 10 includes a base 11 and a bracket 12. The bracket 12 is connected to the base 11, and four brackets 12 are arranged side by side at intervals along the first direction.

[0042] In this embodiment, the first direction is horizontal, and the second direction is vertical. The base 11 extends horizontally, the bracket 12 extends vertically, the rotating shaft 30 passes through the bracket 12 along the first direction, and the movable seat 70 can move up and down vertically. For ease of description, the four brackets 12 are referred to as the first bracket, the second bracket, the third bracket, and the fourth bracket from left to right. The driving member 20 is disposed on the first bracket, the rotating shaft 30 passes through the second and third brackets along the first direction, and the stop pin 122 is disposed on the fourth bracket.

[0043] Optionally, the bracket 12 and the base 11 are detachably connected; the bracket 12 is snapped onto or fixed to the base 11 by bolts; to ensure the support capacity of the bracket 12, a reinforcing plate is added at the connection between the bracket 12 and the base 11.

[0044] Optionally, the drive unit 20 includes a cylinder 21 and a flow rate regulator 22, which is mounted on the cylinder 21 to adjust its operating speed. The cylinder 21 can be a clamping cylinder; a clamping cylinder helps to precisely control the clamping force, providing a faster response speed and higher production efficiency. By mounting the flow rate regulator 22 on the cylinder 21, the flow rate regulator 22 can adjust the airflow speed of the cylinder 21, achieving precise control of its operating speed. The specific number and position of the flow rate regulators 22 can be adaptively adjusted according to actual conditions.

[0045] Furthermore, to connect the drive component 20 and the rotating shaft 30, the multi-stage stroke mechanism also includes a shaft connector 51 and a keyless bushing 52. One end of the shaft connector 51 is detachably connected to the drive component 20, and the other end is detachably connected to the rotating shaft 30 via the keyless bushing 52. By setting the shaft connector 51 and the keyless bushing 52 to connect the drive component 20 and the rotating shaft 30, the connection between the drive component 20 and the rotating shaft 30 is made more robust, capable of withstanding greater torque and tension, ensuring the stability and durability of the overall structure; and the shaft connector 51 has a certain degree of flexibility, which can tolerate the eccentricity between the output shaft of the drive component 20 and the rotating shaft 30, reducing the possibility of failure due to wear and vibration; installation and maintenance are simple, and it has high transmission efficiency.

[0046] In this embodiment, the shaft connector 51 is fixed to the output shaft of the drive component 20 by bolts, the keyless bushing 52 is connected to the rotating shaft 30 by bolts, and part of the keyless bushing 52 is inserted into the shaft connector 51 and forms a friction connection with the shaft connector 51.

[0047] Furthermore, to enhance the smoothness of the rotation of the rotating shaft 30, the multi-stage stroke mechanism also includes a ball bushing 121. The ball bushing 121 is disposed on the base 10, and the rotating shaft 30 slides through the ball bushing 121 and rotates with the base 10 through the ball bushing 121. By setting the ball bushing 121, wear can be reduced and noise can be lowered during long-term use, thereby maintaining high precision and service life.

[0048] Optionally, at least two ball bushings 121 are spaced apart, and a tapered eccentric cam 40 is located between the two ball bushings 121; the tapered eccentric cam 40 is detachably mounted on the rotating shaft 30. In this embodiment, ball bushings 121 are embedded in both the second and third supports. By providing two ball bushings 121, the position of the rotating shaft 30 can be accurately limited, so that the rotating shaft 30 is positioned horizontally on the base 10. By providing the detachable tapered eccentric cam 40, maintenance of the multi-stage stroke mechanism is facilitated. The tapered eccentric cam 40 can be mounted on the rotating shaft 30 using existing fitting and fixing devices, and can be removed when replacement or maintenance is required.

[0049] In this embodiment, taking the second bracket as an example, a ball bushing 121 is embedded in the second bracket, and both ends of the ball bushing 121 extend from both sides of the second bracket; the outer surfaces of both ends of the ball bushing 121 are respectively provided with grooves; the multi-stage stroke mechanism also includes two fixing plates 123, which are respectively engaged in the two grooves of the ball bushing 121, and the two fixing plates 123 are respectively locked onto the second bracket by fasteners to fix the ball bushing 121 onto the second bracket. Correspondingly, the ball bushing 121 on the third bracket is also fixed by the two fixing plates 123 and fasteners.

[0050] Furthermore, the support assembly 60 includes a lifting plate 61, on which a roller 62 is provided that abuts against the conical eccentric cam 40. By providing the roller 62 on the lifting plate 61, and the roller 62 abutting against the conical eccentric cam 40, the curved surface of the conical eccentric cam 40 can contact the roller 62 through the movement or rotation of the conical eccentric cam 40, thereby realizing the movement of the roller 62 and the lifting plate 61.

[0051] Optionally, the support assembly 60 further includes guide rods 63 and sliding bearings 64. One end of the guide rod 63 is connected to the lifting plate 61, and the other end is connected to the movable seat 70. The sliding bearing 64 is embedded in the base 11, and the guide rod 63 slides through the sliding bearing 64. At least two guide rods 63 are spaced apart. By setting the guide rods 63 and the sliding bearings 64 in cooperation, the lifting and lowering of the movable seat 70 is guided. In this embodiment, two guide rods 63 extending vertically are spaced apart on the lifting plate 61, and two sliding bearings 64 are provided on the base 11.

[0052] The following is a detailed explanation of how to use a multi-segment travel mechanism:

[0053] The drive component 20 drives the rotating shaft 30 to move horizontally. As the conical eccentric cam 40 on the rotating shaft 30 moves, it abuts against the roller 62. The roller 62 and the lifting plate 61 move up and down under the guidance of the guide rod 63. The horizontal motion is converted into the lifting motion of the support component 60 and the moving seat 70 by the cam surface of the conical eccentric cam 40. The drive component 20 drives the rotating shaft 30 to rotate around its own axis. By adjusting the eccentricity of the conical eccentric cam 40, continuous stroke adjustment can be achieved, and the position of the moving seat 70 can be precisely controlled, improving applicability.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A multi-stage mechanism, characterized by, include: A base (10) and a rotating shaft (30) movably passing through the base (10), wherein a tapered eccentric cam (40) is provided on the rotating shaft (30); The support assembly (60) is slidably engaged with the base (10), one end of the support assembly (60) is connected to a movable seat (70), and the conical eccentric cam (40) abuts against the other end of the support assembly (60); The driving component (20) is used to drive the rotating shaft (30) to move the tapered eccentric cam (40) along the axial direction of the rotating shaft (30), and can drive the rotating shaft (30) and the tapered eccentric cam (40) to rotate synchronously.

2. The multi-stage travel mechanism according to claim 1, characterized in that, It also includes a shaft connector (51) and a keyless bushing (52). One end of the shaft connector (51) is detachably connected to the drive unit (20), and the other end is detachably connected to the rotating shaft (30) through the keyless bushing (52).

3. The multi-stage travel mechanism of claim 1, wherein, It also includes a ball bushing (121) disposed on the base (10), and the rotating shaft (30) slides through the ball bushing (121) and rotates with the base (10) through the ball bushing (121).

4. The multi-stage travel mechanism of claim 3, wherein, At least two ball bushings (121) are provided at intervals, and the tapered eccentric cam (40) is located between the two ball bushings (121).

5. The multi-stage travel mechanism of claim 1, wherein, The tapered eccentric cam (40) is detachably mounted on the rotating shaft (30).

6. The multi-stage travel mechanism of claim 1, wherein, The support assembly (60) includes a lifting plate (61) on which a roller (62) is provided that abuts against the conical eccentric cam (40).

7. The multi-stage travel mechanism of claim 6, wherein, The support component (60) also includes: The guide rod (63) is connected at one end to the lifting plate (61) and at the other end to the movable seat (70); A sliding bearing (64) is embedded in the base (10), and the guide rod (63) slides through the sliding bearing (64).

8. The multi-stage travel mechanism of claim 7, wherein, The guide rod (63) is provided at least twice at intervals.

9. The multi-stage mechanism of any of claims 1-8, wherein, The drive unit (20) includes a cylinder (21) and a flow rate regulator (22), the flow rate regulator (22) being disposed on the cylinder (21) for adjusting the operating speed of the cylinder (21).

10. The multi-stage travel mechanism according to any one of claims 1-8, wherein, The base (10) is also provided with a stop pin (122), which is used to stop the rotating shaft (30).

Images