Lift and swing mechanism and sorting machine
By controlling the lifting and rotation of the balance wheel through a lifting and swinging mechanism, the interference problem between the balance wheel and the conveyor wheel is solved, which improves the stability and lifespan of the logistics sorting equipment and reduces operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PUJI (GUANGDONG) ROBOT CO LTD
- Filing Date
- 2025-02-27
- Publication Date
- 2026-07-28
AI Technical Summary
In existing logistics sorting machines, interference between the balance wheel and the conveyor wheel causes friction and collisions, affecting equipment stability and service life, and increasing operating costs.
The system employs a lifting and swinging mechanism, which uses a drive motor to move a floating plate and insert rod to control the lifting and rotation of the swing wheel. This avoids direct contact with the conveyor wheel and utilizes friction to drive the conveyor wheel to rotate. After sorting, the wheel is reset to a low position, minimizing interference.
It reduces friction and collisions, improves equipment operational stability, extends service life, and reduces maintenance frequency and operating costs.
Smart Images

Figure CN224563546U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of logistics sorting technology, and in particular to a lifting swing mechanism and a sorting machine. Background Technology
[0002] In the logistics industry, efficient and accurate sorting is crucial for improving logistics efficiency. One common structure in widely used logistics sorting machines features a circular conveyor belt with conveyor wheels. To facilitate the operation of these wheels, a swinging wheel is mounted on the frame. The axle of the conveyor wheel is perpendicular to the conveying direction of the conveyor belt, i.e., parallel to the width direction of the sorting machine. Normally, when the axle of the swing wheel is perpendicular to the axle of the conveyor wheel, the swing wheel and the conveyor wheel do not contact each other, and the conveyor wheel remains stationary and does not rotate. However, when the swing wheel rotates to a certain angle and comes into contact with the conveyor wheel, the relative motion between the two causes the conveyor wheel to rotate, thus enabling the conveyor wheel to perform its sorting function. This design, to a certain extent, meets the basic requirements of logistics sorting.
[0003] A sorting device, disclosed in publication number CN116946671A, provides the following technical content: This invention provides a sorting device belonging to the field of logistics sorting technology, solving the problem of continuous wear and tear in non-sorting states in existing technologies. The invention includes a frame with multiple swingable modules mounted on it. Below each swing module is a drive device that drives it to swing horizontally. Each swing module has a conveyor belt for transporting objects. Multiple conveyor wheels, hinged to the conveyor belt and driven to rotate by the swing modules, are connected to the conveyor belt. A partition is provided between the conveyor wheels, forming a clearance space between them. Each swing module includes two rotatable drive wheels. When the drive wheel swings to a position where its axis is perpendicular to the axis of the conveyor wheel, it abuts against the partition and is embedded in the clearance space, while the conveyor wheel does not rotate. When the drive wheel swings to the left or right, it abuts against the conveyor wheel and drives it to rotate. This invention reduces wear by swinging the drive wheel into the clearance space between the two conveyor wheels to abut against the partition, rather than against the conveyor wheel.
[0004] However, in the above-mentioned schemes, interference often occurs between the drive wheel (the swing wheel in this case) and the conveyor wheel during the swinging operation. This interference not only causes additional friction and collisions between the conveyor wheel and the drive wheel during operation, easily damaging them, but also affects the normal operation stability of the equipment. Frequent malfunctions and repairs increase the operating costs of logistics companies, significantly impacting the lifespan of the sorting equipment and hindering the efficient and sustainable development of the logistics industry. Based on the problems existing in the prior art, this case proposes a lifting swing mechanism and sorting machine, aiming to overcome the shortcomings of the existing swing wheel settings in logistics sorting machines. Utility Model Content
[0005] The purpose of this invention is to provide a lifting and swinging mechanism and a sorting machine to solve the problems mentioned in the background art.
[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A lifting and swinging mechanism includes a motor mounting plate, a balance wheel base plate, a floating plate, a drive motor, and a balance wheel assembly. The motor mounting plate, floating plate, and balance wheel base plate are arranged sequentially from bottom to top. The drive motor is mounted on the bottom of the motor mounting plate, and a drive swing arm is provided on the drive shaft of the drive motor. The drive swing arm is connected to the floating plate. The balance wheel assembly includes multiple balance wheel units. Each balance wheel unit includes a bushing, a balance wheel shaft, a balance wheel bracket, a balance wheel body, a swing arm, and a rod. The bushing is mounted on the balance wheel base plate, and a boss is provided on the top of the bushing. The two ends of the balance wheel shaft are respectively connected to the balance wheel bracket and the swing arm, and pass through the bushing. A protrusion is provided on the bottom of the balance wheel bracket. The rod is connected to the swing arm. A corresponding insertion hole is provided on the floating plate for the rod to be inserted into the insertion hole.
[0007] In a preferred embodiment, the plurality of balance wheel units are arranged in a rectangular array.
[0008] In a preferred embodiment, the floating plate, the motor mounting plate, and the drive motor are provided in multiple ways.
[0009] In a preferred embodiment, the floating plate is provided with a receiving opening for accommodating the drive shaft of the drive motor.
[0010] In a preferred embodiment, the bushing includes a large column section and a small column section connected to each other, with the large column section located above the small column section.
[0011] In a preferred embodiment, a positioning rod is provided at the bottom of the large column section, and a positioning hole is provided on the balance wheel base plate, into which the positioning rod is inserted.
[0012] In a preferred embodiment, a fixing buckle is provided on the side wall of the small column segment.
[0013] In a preferred embodiment, part or all of the small column segment is configured as a polygonal prism.
[0014] In a preferred embodiment, two of each of the boss and the protrusion are provided.
[0015] In a preferred embodiment, the bottom of the balance wheel shaft is provided with a prism portion, the bottom of the prism portion is provided with a connecting buckle, the swing arm is provided with a connecting through hole, the shape of the connecting through hole matches the prism portion, and the bottom of the connecting through hole is provided with a connecting groove that cooperates with the connecting buckle.
[0016] A sorting machine includes the aforementioned lifting and swinging mechanism, a conveyor belt, a frame, multiple indicator lights, and multiple sorting slots. The multiple lifting and swinging mechanisms are installed on the frame along its length. The conveyor belt is arranged around the frame. A drive mechanism is provided in the frame to drive the conveyor belt, causing it to rotate in a ring. The conveyor belt is equipped with conveyor wheels. The multiple sorting slots are respectively located on both sides of the frame. The multiple indicator lights are arranged one-to-one with the sorting slots on the side of the frame.
[0017] Compared with the prior art, the lifting and swinging mechanism provided by this utility model can be divided into three stages: sorting preparation, sorting execution, and sorting completion. In the sorting preparation stage, the swing wheel body is in a low position and remains separated from the conveyor wheel.
[0018] When sorting is required, the drive motor starts. The drive motor drives the drive swing arm to swing. Since the drive swing arm is connected to the floating plate, the swing of the drive swing arm causes the floating plate to move laterally. The lateral movement of the floating plate is transmitted to the insert rod, which then begins to move under the influence of the floating plate. The insert rod is connected to the swing arm, so the movement of the insert rod causes the swing arm to swing. The swing arm is also connected to the balance wheel shaft, thereby driving the balance wheel shaft to rotate. When the balance wheel shaft rotates, the boss on the top of the bushing abuts against the protrusion on the bottom of the balance wheel bracket. This special structural design causes the balance wheel body to be raised while rotating. The raised and rotating balance wheel body contacts the conveyor wheel, and the friction between the two drives the conveyor wheel to rotate, thus achieving the sorting of items and completing the sorting execution stage.
[0019] After sorting is completed, the drive motor is reversed to reset each component in the reverse order of the sorting operation. The drive arm swings in the opposite direction, causing the floating plate to move in the opposite direction. The insert rod, swing arm, and swing wheel shaft move in reverse in sequence. The swing wheel body lowers its height and stops rotating, returning to a low position where it is not in contact with the conveyor wheel, ready for the next sorting task.
[0020] With the above technical setup, contact between the balance wheel and other structures or objects is avoided most of the time, successfully preventing interference between the existing fixed balance wheel and the conveyor wheel, and reducing additional friction and collisions caused by interference. This significantly reduces the risk of damage to the conveyor wheel and balance wheel, and also significantly reduces noise, thereby greatly improving the stability of equipment operation. Improved equipment stability directly extends the service life of the sorting equipment and reduces downtime caused by malfunctions and repairs. For logistics companies, fewer repairs mean lower operating costs, including repair expenses, parts replacement costs, and business losses due to downtime. Attached Figure Description
[0021] Figure 1 This is a schematic diagram (first perspective) of a lifting and swinging mechanism that relates to this utility model.
[0022] Figure 2 This utility model relates to a structural schematic diagram of a lifting and swinging mechanism (second view, with a motor mounting plate removed).
[0023] Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.
[0024] Figure 4 This utility model relates to a structural schematic diagram of a floating plate and a swing wheel unit of a lifting and swinging mechanism.
[0025] Figure 5 This utility model relates to a structural schematic diagram of the balance wheel unit of a lifting and swinging mechanism (the small column section is circular).
[0026] Figure 6 This utility model relates to a structural diagram of a swing wheel unit after the swing wheel shaft and swing arm are separated (the small column section is circular).
[0027] Figure 7 This is a schematic diagram of the structure of the swing wheel unit of a lifting and swinging mechanism after removing the bushing.
[0028] Figure 8 This utility model relates to a structural schematic diagram of the balance wheel unit of a lifting and swinging mechanism (the small column section is arranged in a polygonal prism shape).
[0029] Figure 9 This utility model relates to a schematic diagram of the bushing structure of the swing wheel unit of a lifting and swinging mechanism (the small column section is arranged in a polygonal prism shape).
[0030] Figure 10 This utility model relates to a structural schematic diagram of a sorting machine.
[0031] 1. Motor mounting plate; 2. Balance wheel base plate; 3. Positioning hole; 4. Floating plate; 5. Insertion hole; 6. Accommodation opening; 7. Drive motor; 8. Drive swing arm; 9. Bushing; 10. Large column section; 11. Positioning rod; 12. Small column section; 13. Fixing buckle; 14. Boss; 15. Balance wheel shaft; 16. Prism section; 17. Connecting buckle; 18. Balance wheel bracket; 19. Protrusion; 20. Balance wheel body; 21. Swinging arm; 22. Connecting through hole; 23. Connecting slot; 24. Insert rod; 25. Conveyor belt; 26. Frame; 27. Indicator light; 28. Sorting slot. Detailed Implementation
[0032] The present invention will be further described in detail below with reference to the accompanying drawings.
[0033] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law. Example 1
[0034] like Figures 1 to 7 As shown, a lifting and swinging mechanism includes a motor mounting plate 1, a balance wheel base plate 2, a floating plate 4, a drive motor 7, and a balance wheel assembly. The motor mounting plate 1, the floating plate 4, and the balance wheel base plate 2 are arranged sequentially from bottom to top. The drive motor 7 is mounted on the bottom of the motor mounting plate 1. A drive swing arm 8 is provided on the drive shaft of the drive motor 7, and the drive swing arm 8 is connected to the floating plate 4. The balance wheel assembly includes multiple balance wheel units, and each balance wheel unit includes a bushing 9, a balance wheel shaft 15, and a balance wheel bracket. 18. Balance wheel body 20, swing arm 21 and insert rod 24. The bushing 9 is mounted on the balance wheel base plate 2. The top of the bushing 9 is provided with a boss 14. The two ends of the balance wheel shaft 15 are respectively connected to the balance wheel bracket 18 and the swing arm 21, and pass through the bushing 9. The bottom of the balance wheel bracket 18 is provided with a protrusion 19. The insert rod 24 is connected to the swing arm 21. The floating plate 4 is provided with a socket 5 corresponding to the insert rod 24, and the insert rod 24 is inserted into the socket 5.
[0035] The multiple balance wheel units are arranged in a rectangular array.
[0036] The lifting and swinging mechanism of this embodiment can be divided into three stages: sorting preparation, sorting execution, and sorting completion. In the sorting preparation stage, the swing wheel body 20 is in a low position and remains separated from the conveyor wheel.
[0037] When sorting is required, drive motor 7 starts. Drive motor 7 drives drive arm 8 to swing. Since drive arm 8 is connected to floating plate 4, the swing of drive arm 8 causes floating plate 4 to move laterally. The lateral movement of floating plate 4 is transmitted to insert rod 24, which begins to move under the drive of floating plate 4. Insert rod 24 is connected to swing arm 21, so the movement of insert rod 24 causes swing arm 21 to swing. Swing arm 21 is connected to balance wheel shaft 15, thereby driving balance wheel shaft 15 to rotate. When balance wheel shaft 15 rotates, the boss 14 on the top of bushing 9 and the boss 19 on the bottom of balance wheel bracket 18 abut against each other. This special structural design causes balance wheel body 20 to be raised while rotating. The raised and rotating balance wheel body 20 contacts the conveyor wheel, and the friction between the two drives the conveyor wheel to rotate, realizing the sorting of items and completing the sorting execution stage.
[0038] After sorting is completed, the drive motor 7 is reversed to reset each component in the reverse order of the sorting operation. The drive arm 8 swings in the opposite direction, causing the floating plate 4 to move in the opposite direction. The insert rod 24, the swing arm 21, and the balance wheel shaft 15 move in the opposite direction in sequence. The balance wheel body 20 lowers its height and stops rotating, returning to a low position where it is not in contact with the conveyor wheel, waiting for the next sorting task.
[0039] With the above technical setup, interference between the existing fixed balance wheel and conveyor wheel is successfully avoided, reducing additional friction and collisions caused by interference. This significantly reduces the risk of damage to both the conveyor wheel and balance wheel, thereby greatly improving the stability of equipment operation. Improved equipment stability directly extends the lifespan of the sorting equipment and reduces downtime due to malfunctions. For logistics companies, reduced maintenance frequency translates to lower operating costs, including repair expenses, parts replacement costs, and business losses due to downtime.
[0040] To achieve zoned control, multiple floating plates 4, motor mounting plates 1, and drive motors 7 are provided, thereby enabling individual control of multiple zones and sorting in different directions.
[0041] To make the structure more stable, the floating plate 4 is provided with a receiving opening 6 to accommodate the drive shaft of the drive motor 7. The shape of the receiving opening 6 is set so that the drive shaft fits against the hole wall of the receiving opening 6 during the operation of the floating plate 4. Thus, through the mutual constraint relationship between the drive shaft and the floating plate 4, the operation of the floating plate 4 is more stable.
[0042] Furthermore, the bushing 9 includes a large column section 10 and a small column section 12 connected to each other, with the large column section 10 located above the small column section 12.
[0043] In order to achieve stable installation of the bushing 9 on the balance wheel base plate 2, a positioning rod 11 is provided at the bottom of the large column section 10, and a positioning hole 3 is provided on the balance wheel base plate 2, and the positioning rod 11 is inserted into the positioning hole 3.
[0044] To achieve a more stable installation, a fixing buckle 13 is provided on the side wall of the small column section 12. After the bushing 9 is installed, the lower part of the large column section 10 abuts against the upper surface of the balance wheel base plate 2, and the fixing buckle 13 abuts against the lower surface of the balance wheel base plate 2, thereby achieving a stable installation of the bushing 9.
[0045] To achieve a stable structural fit, two of each of the bosses 14 and the protrusions 19 are provided.
[0046] In order to achieve a reasonable fit between the balance wheel shaft 15 and the swing arm 21, the bottom of the balance wheel shaft 15 is provided with a prism portion 16, the bottom of the prism portion 16 is provided with a connecting buckle 17, the swing arm 21 is provided with a connecting through hole 22, the shape of the connecting through hole 22 matches the prism portion 16, and the bottom of the connecting through hole 22 is provided with a connecting groove 23 that mates with the connecting buckle 17. Example 2
[0047] like Figure 8 and Figure 9 As shown, the difference from Embodiment 1 is that the positioning rod 11 is not provided. Correspondingly, the positioning hole 3 is not provided on the balance wheel base plate 2. Instead, a section or all of the small column section 12 is set as a polygonal prism. Correspondingly, a through hole adapted to the shape of the small column section 12 is provided on the balance wheel base plate 2. Positioning is achieved by utilizing the positioning function of the polygonal prism itself, thereby effectively simplifying the structural setup.
[0048] Furthermore, the small column segment 12 is not limited to being configured as a polygonal prism; it can be configured as any non-circular shape, as long as it can achieve its positioning function. Example 3
[0049] like Figures 1 to 10 As shown, a sorting machine includes the lifting and swinging mechanism described in Embodiment 1. In this embodiment of the sorting machine, multiple lifting and swinging mechanisms can be reasonably configured to meet the sorting needs of multiple categories.
[0050] A sorting machine according to this embodiment also includes a conveyor belt 25, a frame 26, multiple indicator lights 27, and multiple sorting slots 28. Multiple lifting and swinging mechanisms are installed on the frame 26 along its length. The conveyor belt 25 is arranged around the frame 26. The frame 26 is provided with a drive mechanism, such as a motor, to drive the conveyor belt 25, causing the conveyor belt 25 to rotate in a ring. The conveyor belt 25 is provided with conveyor wheels. Multiple sorting slots 28 are respectively arranged on both sides of the frame 26. Multiple indicator lights 27 are arranged one-to-one with the sorting slots 28 and are arranged on the side of the frame 26.
[0051] With the above structural setup, the drive mechanism drives the drive belt to rotate in a ring, and multiple lifting and swinging mechanisms are used to control the sorting action of different areas of the conveyor belt 25, sorting the goods into different sorting slots 28. During sorting, the indicator light 27 of the corresponding sorting slot 28 lights up, intuitively indicating the real-time sorting status, making the sorting process more intuitive.
[0052] The above description of the embodiments is provided to facilitate understanding and use of the present invention by those skilled in the art. It is obvious to those skilled in the art that various modifications can be easily made to the embodiments, and the general principles described herein can be applied to other embodiments without creative effort. Therefore, the present invention is not limited to the above embodiments. Any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the present invention should be within the protection scope of the present invention.
Claims
1. A lifting and swinging mechanism, characterized in that, The device includes a motor mounting plate, a balance wheel base plate, a floating plate, a drive motor, and a balance wheel assembly. The motor mounting plate, floating plate, and balance wheel base plate are arranged sequentially from bottom to top. The drive motor is mounted on the bottom of the motor mounting plate, and a drive swing arm is provided on the drive shaft of the drive motor. The drive swing arm is connected to the floating plate. The balance wheel assembly includes multiple balance wheel units. Each balance wheel unit includes a bushing, a balance wheel shaft, a balance wheel bracket, a balance wheel body, a swing arm, and a plug. The bushing is mounted on the balance wheel base plate, and a boss is provided on the top of the bushing. The two ends of the balance wheel shaft are respectively connected to the balance wheel bracket and the swing arm, and pass through the bushing. A protrusion is provided on the bottom of the balance wheel bracket. The plug is connected to the swing arm. A corresponding insertion hole is provided on the floating plate for the plug, and the plug is inserted into the insertion hole.
2. The lifting and swinging mechanism according to claim 1, characterized in that, The multiple balance wheel units are arranged in a rectangular array.
3. The lifting and swinging mechanism according to claim 1, characterized in that, The floating plate, motor mounting plate, and drive motor are provided in multiple ways.
4. The lifting and swinging mechanism according to claim 1, characterized in that, The floating plate is provided with a receiving opening to accommodate the drive shaft of the drive motor.
5. The lifting and swinging mechanism according to claim 1, characterized in that, The bushing includes a large column section and a small column section that are connected to each other, with the large column section located above the small column section.
6. The lifting and swinging mechanism according to claim 5, characterized in that, The bottom of the large column section is provided with a positioning rod, and the balance wheel base plate is provided with a positioning hole, into which the positioning rod is inserted.
7. The lifting and swinging mechanism according to claim 5, characterized in that, The side wall of the small column section is provided with a fixing buckle.
8. The lifting and swinging mechanism according to claim 5, characterized in that, The small column segment is partially or entirely configured as a polygonal prism.
9. The lifting and swinging mechanism according to claim 1, characterized in that, The bottom of the balance wheel shaft is provided with a prism portion, and the bottom of the prism portion is provided with a connecting buckle. The swing arm is provided with a connecting through hole, the shape of which matches the prism portion. The bottom of the connecting through hole is provided with a connecting groove that mates with the connecting buckle.
10. A sorting machine, characterized in that, The lifting and swinging mechanism according to any one of claims 1-9 further includes a conveyor belt, a frame, multiple indicator lights, and multiple sorting slots. The multiple lifting and swinging mechanisms are installed on the frame along the length direction of the frame. The conveyor belt is arranged around the frame. A drive mechanism is provided in the frame to drive the conveyor belt, so that the conveyor belt rotates in a ring. The conveyor belt is provided with a conveyor wheel. The multiple sorting slots are respectively arranged on both sides of the frame. The multiple indicator lights are arranged one-to-one with the sorting slots and are arranged on the side of the frame.