Circumferentially staggered transfer device

Abstract

The utility model provides a circumferentially staggered transfer device which comprises a first transfer drum wheel for bearing bar-shaped materials side by side, a second transfer drum wheel for receiving the bar-shaped materials singly, and a middle transfer drum wheel assembly for transferring the bar-shaped materials in a staggered manner, the middle transmission drum wheel assembly is arranged between the first transmission drum wheel and the second transmission drum wheel, at least two sets of swing transmission elements are arranged on the middle transmission drum wheel assembly, and the swing amplitudes of every two adjacent sets of swing transmission elements are different; the swing transfer element is used for absorbing the rod-shaped materials from the first transfer drum wheel and then transferring the rod-shaped materials to the second transfer drum wheel in a staggered mode according to different swing amplitudes. According to the circumferentially-staggered transmission device, circumferentially-staggered transmission of cut rod-shaped objects or multi-section rod-shaped combinations can be achieved, dislocation is conducted through mechanical movement, the performance is stable and reliable, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery, and more specifically, to a circumferentially misaligned transmission device. Background Technology

[0002] In tobacco product manufacturing, drums are typically used to convey materials. The drum's circumferential surface has a receiving cavity to hold the material, and it also has ventilation holes that communicate with the receiving cavity. During material conveying, the drum connects to a negative pressure device through the ventilation holes, creating a negative pressure in the receiving cavity. When material enters the cavity, the negative pressure draws the material in, and the rotation of the drum then conveys it. However, traditional circumferential offset conveying devices for rod-shaped items are structurally limited and cannot be used for conveying shorter rod-shaped items or combinations of multiple rod-shaped sections.

[0003] Utility model patent CN221265223U discloses a staggered drum structure, which includes a drum and a blocking component. Multiple receiving cavities are formed on the circumferential surface of the drum, arranged sequentially along the circumference of the drum. Along the circumference of the drum, each receiving cavity includes a first receiving unit and a second receiving unit arranged sequentially. The first and second receiving units are used to receive materials. Ventilation holes are also formed on the drum, and each first and second receiving unit is connected to a corresponding vent. Along the radial direction of the drum, the blocking component is spaced apart from the drum, and along the axial direction of the drum, the blocking component is positioned corresponding to the receiving cavity. The blocking component is used to block material, allowing material in the first receiving unit to flow into the second receiving unit. This staggered drum structure can circumferentially shift materials during conveying, improving the reliability of material conveying and docking. However, this staggered drum structure cannot achieve staggered transfer between different drums. Utility Model Content

[0004] To achieve circumferential staggered transfer of cut rod-shaped items or combinations of multiple rod-shaped segments, and to improve the performance stability of staggered transfer, the technical solution adopted by this utility model is: a circumferential staggered transfer device, comprising a first transfer drum wheel that carries rod-shaped materials side by side, a second transfer drum wheel that receives the rod-shaped materials individually, and an intermediate transfer drum wheel assembly for staggered transfer of the rod-shaped materials.

[0005] The intermediate transfer drum assembly is disposed between the first transfer drum and the second transfer drum, and the intermediate transfer drum assembly is provided with at least two sets of swing transfer elements, the swing amplitude of adjacent sets of swing transfer elements being different;

[0006] The oscillating transmission element is used to adsorb the rod-shaped material from the first transmission drum and then transfer the rod-shaped material to the second transmission drum by means of different oscillation amplitudes.

[0007] Based on the above, in order to achieve pure mechanical oscillation, the intermediate transmission drum assembly is provided with misaligned contour lines with different trajectories for each group of oscillation transmission elements, and adjacent groups of oscillation transmission elements rotate along different misaligned contour lines.

[0008] Based on the above, the swing axes of the several swing transmission elements are distributed on the same virtual circumference.

[0009] Based on the above, in order to achieve smooth transmission, the rotation direction of the first transmission drum is different from the rotation direction of the intermediate transmission drum assembly, and the rotation direction of the intermediate transmission drum assembly is different from the rotation direction of the second transmission drum.

[0010] Based on the above, the first transfer drum, the second transfer drum, and the oscillating transfer element are respectively provided with adsorption grooves that adsorb the rod-shaped material by relying on negative pressure.

[0011] Based on the above, the pitch of the adsorption groove on the outer circumference of the first transfer drum is different from the pitch of the adsorption groove on the outer circumference of the second transfer drum.

[0012] Based on the above, the circumferentially misaligned transmission device includes two sets of swing transmission elements. Each swing transmission element includes a swing rotating shaft, a swing suction claw, a swing wheel, and a bearing. The swing suction claw is installed at one end of the swing rotating shaft, and the swing wheel is installed at the other end of the swing rotating shaft. The rotation axis of the swing wheel is misaligned with the rotation axis of the swing rotating shaft, and the bearing is installed on the swing rotating shaft.

[0013] The oscillating adsorption claw has an adsorption groove, and the adsorption groove has an adsorption hole for connecting to the negative pressure channel.

[0014] Based on the above, the intermediate transmission drum assembly includes a drive shaft, a drive disc, a drive base, a front wheel body, a front cam, a front valve ring, a rear wheel body, a rear cam, a rear valve ring, a valve seat, a valve, and a valve seat.

[0015] The front cam and the rear cam are respectively provided with misaligned contour lines for the movement of the swing wheel, and the two misaligned contour lines have different shapes.

[0016] The rear wheel body, the rear valve ring, the front valve ring, the front wheel body, and the drive disc are connected together to form a rotating body, and the rotating body is connected to the drive shaft through the drive disc;

[0017] The drive shaft is mounted on the drive seat via bearings. The air distribution seat and the valve seat are disposed on the outer peripheral surface of the drive seat and together with the drive seat form a negative pressure chamber. The air valve is installed at one end of the valve seat.

[0018] One set of the swing transmission elements is connected to the rear wheel body via a rotary joint, and the other set of swing transmission elements is connected to the front wheel body via a rotary joint;

[0019] Based on the above, the rear cam is mounted on the valve seat, the front cam is mounted on the air valve, the rear cam is located in the sealed cavity formed by the rear wheel body and the valve seat, and the front cam is located in the sealed cavity formed by the front wheel body, the drive disc and the air valve.

[0020] Based on the above, a number of small holes that intermittently communicate with the adsorption holes are distributed within the radial negative pressure region of the rear air distribution ring and the front air distribution ring. The number of small holes are arranged in two rows and communicate with the negative pressure cavity.

[0021] This invention represents a substantial advancement over existing technologies. Specifically, the circumferential misalignment transfer device provided by this invention comprises a first transfer device and a second transfer device. Each transfer device includes multiple oscillating transfer elements sharing a common rotation axis. Each oscillating transfer element has an arc-shaped groove for accommodating rod-shaped items or multiple rod-shaped segments. The oscillating transfer element group receives and, through oscillation along different trajectories, misaligns two rod-shaped items or multiple rod-shaped segments circumferentially, thereby achieving circumferential misalignment transfer of cut rod-shaped items or multiple rod-shaped segments. This device relies on mechanical motion for misalignment, offering stable and reliable performance and a simple structure. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the circumferentially misaligned transmission device provided by this utility model.

[0023] Figure 2 and Figure 3 This is a partial structural diagram of the circumferential misalignment transmission device provided by this utility model.

[0024] Figure 4 and Figure 5 This is a schematic diagram of the motion principle of the circumferential misalignment transmission device provided by this utility model.

[0025] Figure 6 This is a schematic cross-sectional view of the intermediate transmission drum assembly in the circumferentially misaligned transmission device provided by this utility model.

[0026] Figure 7 This is a schematic diagram of the oscillating transmission element in the circumferential misalignment transmission device provided by this utility model.

[0027] In the diagram: 1. Second transfer drum; 2. Middle transfer drum assembly; 3. First transfer drum; 4. Rear swing transfer element group; 5. Front swing transfer element group; 6. Swing adsorption claw; 7. Second adsorption groove; 8. Middle adsorption groove; 9. First adsorption groove; 10. Rod-shaped material; 11. Shrinkage contour line; 12. First misalignment contour line; 13. Second misalignment contour line; 14. Bearing; 15. Swing rotation shaft; 16. Swing wheel; 17. Drive seat; 18. Gas distribution seat; 19. Valve seat; 20. Rear cam; 21. Rear wheel body; 22. Rear gas distribution ring; 23. Front gas distribution ring; 24. Front wheel body; 25. Drive disc; 26. Air valve; 27. Front cam; 28. Drive shaft. Detailed Implementation

[0028] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0029] Example 1

[0030] This embodiment provides a circumferentially misaligned transmission device, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, it includes a first transfer drum 3 that carries rod-shaped materials 10 side by side, a second transfer drum 1 that receives the rod-shaped materials 10 individually, and an intermediate transfer drum assembly 2 that transfers the rod-shaped materials 10 in an offset manner.

[0031] The intermediate transfer drum assembly 2 is disposed between the first transfer drum 3 and the second transfer drum 1. The intermediate transfer drum assembly 2 is provided with at least two sets of swing transfer elements, and the swing amplitude of the two adjacent sets of swing transfer elements is different.

[0032] The oscillating transmission element is used to adsorb the rod-shaped material from the first transmission drum and then transfer the rod-shaped material to the second transmission drum by means of different oscillation amplitudes.

[0033] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, rod-shaped material is transferred from the first transfer drum 3 to the second transfer drum 1, and the pitch of the adsorption grooves on the outer circumference of the first transfer drum 3 and the second transfer drum 1 is different. When the material is transferred from the first transfer drum 3 to the second transfer drum 1, the distribution of the rod-shaped material on the conveying device is changed from axially aligned to axially staggered.

[0034] The first transfer drum 3, the second transfer drum 1, and the oscillating transfer element are each provided with adsorption grooves that adsorb the rod-shaped material by means of negative pressure. According to their distribution positions, the adsorption grooves can be referred to as the first adsorption groove 9, the second adsorption groove 7, and the intermediate adsorption groove 8.

[0035] The pitch of the adsorption groove on the outer circumference of the first transfer drum is different from the pitch of the adsorption groove on the outer circumference of the second transfer drum.

[0036] In order to achieve smooth transmission, the rotation direction of the first transmission drum 3 is different from the rotation direction of the intermediate transmission drum assembly 2, and the rotation direction of the intermediate transmission drum assembly 2 is different from the rotation direction of the second transmission drum 1.

[0037] The intermediate transmission drum assembly 2 includes multiple swing transmission elements. Preferably, thirty or sixty swing transmission elements are arranged on the intermediate transmission drum assembly 2. The swing transmission elements can be divided into two groups at the front and rear of the installation location, respectively referred to as the rear swing transmission element group 4 and the front swing transmission element group 5.

[0038] Specifically, the intermediate transfer drum assembly 2 moves along the conveying direction, and the oscillating transfer element receives the rod-shaped material 10 from the first transfer drum 3 on the right side of the intermediate transfer drum assembly 2. At this time, the two adsorption grooves of the oscillating transfer element along the longitudinal axis are coaxial.

[0039] In order to achieve the oscillation of the oscillating transmission element, the oscillating transmission element is connected to its respective oscillating wheel, and the oscillating wheel moves along the profile of the front cam and the rear cam respectively.

[0040] Among them, the rear swing transmission element group 4 swings in the same direction as the intermediate transmission drum assembly 2 rotates along the conveying direction, making it ahead of the rear wheel body 21. The front swing transmission element group 5 swings in the opposite direction as the intermediate transmission drum assembly 2 rotates along the conveying direction, making it lag behind the front wheel body 24.

[0041] Therefore, in sequence, firstly, the rear swing transmission element group 4 transfers the rod-shaped material 10 to the second transmission drum 1, and then the front swing transmission element group 5 transfers the rod-shaped material 10 to the second transmission drum 1. The front swing transmission element group 5 and the rear swing transmission element group 4 swing around their respective swing rotation axes 15.

[0042] The pitch of the first adsorption groove 9 within the first transfer drum 3 should be constant, while the pitch of the swing adsorption claw 6 on the intermediate transfer drum assembly 2 is variable.

[0043] Specifically, such as Figure 6 and Figure 7As shown, the intermediate transmission drum assembly 2 includes a first misaligned profile line 12, a second misaligned profile line 13, a bearing 14, a swing rotation shaft 15, a swing wheel 16, a drive seat 17, a valve seat 18, a valve seat 19, a rear cam 20, a rear wheel body 21, a rear valve ring 22, a front valve ring 23, a front wheel body 24, a drive disc 25, a valve 26, a front cam 27, and a drive shaft 28. The first misaligned profile line 12 is formed on the rear cam 20. The second misaligned profile line 13 is formed on the front cam 27.

[0044] The swing transmission element consists of a swing rotating shaft 15, a swing suction claw, a swing wheel 16, and a bearing 14. The swing suction claw is mounted at one end of the swing rotating shaft 15. The swing wheel 16 is mounted at the other end of the swing rotating shaft 15.

[0045] The rotation axis of the swing wheel 16 is offset from the rotation axis of the swing rotation shaft 15, and the bearing 14 is disposed on the swing rotation shaft 15.

[0046] The swinging adsorption claw has an adsorption groove, and the adsorption groove has an adsorption hole for connecting to the negative pressure channel.

[0047] The rear cam 20 and the front cam 27 are respectively provided with a shrinkage profile line 11.

[0048] Specifically, the drive base 17 is mounted on the frame, and the drive shaft 28 is mounted on the drive base 17 via bearings. The drive shaft 28 is used to provide the intermediate transmission torque for the rotation of the drum assembly 2.

[0049] The valve seat 18 is fixed to the frame, and the valve seat 19 is installed on the valve seat 18, forming a negative pressure chamber with the drive seat 17. The negative pressure in the negative pressure chamber is introduced from the left end face of the drive seat 17.

[0050] The rear wheel body 21, rear valve train 22, front valve train 23, front wheel body 24, and drive disc 25 are connected together to form a rotating body, and are connected to the drive shaft 28 through the drive disc 25. The rear swing transmission element group 4 and the front swing transmission element group 5 swing around the swing rotation axis 15 of the bearing 14, respectively.

[0051] Specifically, the rear cam 20 is mounted on the valve seat 19, and the front cam 27 is mounted on the air valve 26. The rear cam 20 and the front cam 27 are stationary relative to the frame. The rear swing transmission element assembly 4 is connected to the rear wheel body 21 through a rotary joint, and the swing wheel 16 on it contacts the profile of the rear cam 20.

[0052] Similarly, the front swing transmission element group 5 is connected to the front wheel body 24 via a rotary joint, and the swing wheel 16 on it contacts the profile of the front cam 27. The bearing 14 moves in uniform circular motion with the rotating body. The swing wheel 16 and the bearing 14 work together to control the swing direction and swing amplitude of the front swing transmission element group 5 and the rear swing transmission element group 4.

[0053] Specifically, the rear cam 20 is located in a sealed cavity formed by the rear wheel body 21 and the valve seat 19, isolated from the outside air. This sealed cavity is filled with a lubricating medium for lubricating the swing wheel 16. Similarly, the front cam 27 is located in a sealed cavity formed by the front wheel body 24, the drive disc 25, and the air valve 26. This sealed cavity is filled with a lubricating medium for lubricating the swing wheel 16.

[0054] Among them, several small holes are distributed in the radial negative pressure area of ​​the rear air distribution ring 22 and the front air distribution ring 23, and are arranged in two rows. They are connected to the holes of the rear swing transmission element group 4 and the front swing transmission element group 5 respectively, forming a negative pressure channel. This enables the swing adsorption grooves in the rear swing transmission element group 4 and the front swing transmission element group 5 to have an intermittent adsorption function, thereby realizing the reception and release of the rod-shaped material 10.

[0055] Specifically, such as Figure 4 and Figure 5 The operating principle of the intermediate transmission drum assembly 2 is given. As shown in the figure, the front swing transmission element group, bearing, and swing wheel are rigidly connected. The rear swing transmission element group, bearing, and swing wheel are also rigidly connected.

[0056] The two bearings share a common axis and both rotate with the intermediate transmission drum assembly 2. The two oscillating wheels, the front oscillating transmission element group, and the rear oscillating transmission element group rotate together around the common axis of the bearings.

[0057] One of the swing wheels is controlled by the first misaligned profile 12 of the rear cam 20, which causes the swing wheel 16 to rotate around the common axis of the bearing. The other swing wheel is controlled by the second misaligned wheel 13 profile of the front cam 27, which causes the other swing wheel to rotate around the common axis of the bearing.

[0058] Because the profiles of the rear cam 20 and the front cam 27 are different, the rod-shaped material 10 adsorbed on the surfaces of the rear swing transmission element group 4 and the front swing transmission element group 5 have different motion trajectories and pitches.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A circumferentially staggered transfer device, comprising a first transfer drum wheel carrying rod-shaped materials side by side, a second transfer drum wheel receiving the rod-shaped materials individually, and an intermediate transfer drum wheel assembly for staggered transfer of the rod-shaped materials, characterized in that: The intermediate transfer drum assembly is disposed between the first transfer drum and the second transfer drum, and the intermediate transfer drum assembly is provided with at least two sets of swing transfer elements, the swing amplitude of adjacent sets of swing transfer elements being different; The oscillating transmission element is used to adsorb the rod-shaped material from the first transmission drum and then transfer the rod-shaped material to the second transmission drum by means of different oscillation amplitudes.

2. The circumferentially misaligned transmission device according to claim 1, characterized in that: The intermediate transmission drum assembly has misaligned contour lines with different trajectories for each group of swing transmission elements, and adjacent groups of swing transmission elements rotate along different misaligned contour lines.

3. The circumferentially misaligned transmission device according to claim 2, characterized in that: The swing axes of each set of swing transmission elements are distributed on the same virtual circumference.

4. The circumferentially misaligned transmission device according to claim 2 or 3, characterized in that: The rotation direction of the first transfer drum is different from the rotation direction of the intermediate transfer drum assembly, and the rotation direction of the intermediate transfer drum assembly is different from the rotation direction of the second transfer drum.

5. The circumferentially misaligned transmission device according to claim 4, characterized in that: The first transfer drum, the second transfer drum, and the oscillating transfer element are each provided with an adsorption groove that adsorbs the rod-shaped material by relying on negative pressure.

6. The circumferentially misaligned transmission device according to claim 5, characterized in that: The pitch of the adsorption groove on the outer circumference of the first transfer drum is different from the pitch of the adsorption groove on the outer circumference of the second transfer drum.

7. The circumferentially misaligned transmission device according to claim 6, characterized in that: It includes two sets of swing transmission elements. Each set of swing transmission elements includes a swing rotation shaft, a swing suction claw, a swing wheel and a bearing. The swing suction claw is installed at one end of the swing rotation shaft, and the swing wheel is installed at the other end of the swing rotation shaft. The rotation axis of the swing wheel is offset from the rotation axis of the swing rotation shaft. The bearing is installed on the swing rotation shaft. The oscillating adsorption claw has an adsorption groove, and the adsorption groove has an adsorption hole for connecting to the negative pressure channel.

8. The circumferentially misaligned transmission device according to claim 7, characterized in that: The intermediate transmission drum assembly includes a drive shaft, a drive disc, a drive base, a front wheel body, a front cam, a front valve ring, a rear wheel body, a rear cam, a rear valve ring, a valve seat, a valve, and a valve seat. The front cam and the rear cam are respectively provided with misaligned contour lines for the movement of the swing wheel, and the two misaligned contour lines have different shapes. The rear wheel body, the rear valve ring, the front valve ring, the front wheel body, and the drive disc are connected together to form a rotating body, and the rotating body is connected to the drive shaft through the drive disc; The drive shaft is mounted on the drive seat via bearings. The air distribution seat and the valve seat are disposed on the outer peripheral surface of the drive seat and together with the drive seat form a negative pressure chamber. The air valve is installed at one end of the valve seat. One set of the swing transmission elements is connected to the rear wheel body via a rotary joint, and the other set of the swing transmission elements is connected to the front wheel body via a rotary joint.

9. The circumferentially misaligned transmission device according to claim 8, characterized in that: The rear cam is mounted on the valve seat, the front cam is mounted on the air valve, the rear cam is located in the sealed cavity formed by the rear wheel body and the valve seat, and the front cam is located in the sealed cavity formed by the front wheel body, the drive disc and the air valve.

10. The circumferentially misaligned transmission device according to claim 9, characterized in that: Within the radial negative pressure region of the rear and front air distribution rings, there are several small holes that intermittently communicate with the adsorption holes. These small holes are arranged in two rows and communicate with the negative pressure cavity.

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