A logistics sorting and guiding device

Abstract

The application discloses a logistics sorting guide and shunting device and belongs to the technical field of logistics sorting. The sorting guide and shunting device comprises a rack arranged at the output end of a conveying belt, a rear row of swing wheel groups, a middle row of swing wheel groups and a front row of swing wheel groups which are sequentially arranged on the rack along the conveying direction, and a driving structure arranged on the rack. The device further comprises a controller, a profile detection member arranged at the output end of the conveying belt, and a lifting structure arranged on the rack and located below the driving structure. The profile detection member is used to detect the bottom profile of a package in advance, and the rear row of swing wheel groups, the middle row of swing wheel groups and the front row of swing wheel groups are lifted in a wave shape with the height decreasing sequentially by the driving of the lifting structure, so that the active profiling and lifting of a soft package with a recess are realized, and the faults such as sorting omission, package blockage and slippage deviation caused by the suspension and idling of the package are reduced.

Description

Technical Field

[0001] This application relates to the field of logistics sorting technology, specifically a logistics sorting and diversion device. Background Technology

[0002] Logistics sorting and diversion devices are one of the core actuators in automated logistics sorting systems. They are widely used in scenarios such as express delivery transit centers and e-commerce warehousing and distribution centers. Their basic function is to divert packages on the conveyor belt from the main line to the corresponding chute or collection container according to the preset destination.

[0003] Currently, packages are continuously transported to the sorting and guiding diversion device via conveyor belts. A set of swing wheels applies a steering force to change the package's direction of travel, guiding it into the target sorting channel. However, when conveying loose soft packages or woven bags with concave bottoms, the actual support surface of the package as it passes the swing wheel set is only a localized area of ​​the concave edge. Most of the swing wheels cannot effectively contact the bottom of the package and remain idle. The driving force on the package is much lower than that of a regular package with a flat bottom. This results in the package not receiving sufficient steering acceleration and deviating from the preset sorting trajectory, causing sorting omissions or errors. Furthermore, the presence of concave areas makes the contact between the package bottom and the swing wheels extremely unstable. Packages are prone to irregular slippage or deflection during turning, further exacerbating the decrease in sorting accuracy. In addition, when multiple concave soft packages arrive consecutively, if the previous package slips and fails to leave the sorting area in time, subsequent packages arriving one after another can easily accumulate and clog at the sorting station, forcing the entire line to stop for cleaning and affecting the continuous operation efficiency of the sorting system.

[0004] Therefore, this application provides a logistics sorting and diversion device to solve the above problems. Summary of the Invention

[0005] This application provides a logistics sorting and diversion device, which aims to solve the problems mentioned in the background art, such as the inability of existing logistics sorting and diversion devices to provide effective support for soft packages with concave bottoms, resulting in packages slipping, deflecting, and accumulating and blocking due to insufficient driving force, thus affecting sorting accuracy and operational continuity.

[0006] To achieve the above objectives, this application provides the following technical solution: a logistics sorting and diversion device, comprising a frame disposed at the output end of a conveyor belt, a rear row of swing wheels, a middle row of swing wheels, and a front row of swing wheels disposed on the frame and arranged sequentially along the conveying direction, and a drive structure disposed on the frame for rotating and reversing the rear row of swing wheels, the middle row of swing wheels, and the front row of swing wheels to guide package sorting; The sorting and guiding diversion device also includes a controller, a contour detection component located at the output end of the conveyor belt for detecting the bottom contour of the package, and a lifting structure located on the frame and below the drive structure for lifting the rear row of swing wheel groups, the middle row of swing wheel groups and the front row of swing wheel groups. The lifting height of the middle row of balance wheels, the rear row of balance wheels, and the front row of balance wheels decreases sequentially, and the rear row of balance wheels, the middle row of balance wheels, and the front row of balance wheels are each composed of multiple raised composite wheels, multiple buffer wheels, and multiple smooth low-resistance wheels. The contour detection component is connected to the input terminal of the controller, and the rear row of swing wheels and the drive structure are both connected to the output terminal of the controller. The contour detection component pre-detects the bottom contour of the package, and the lifting structure drives the rear row of swing wheels, the middle row of swing wheels, and the front row of swing wheels to rise in a wave-like manner with progressively decreasing heights. This achieves active contour-following lifting of concave soft packages, reducing sorting omissions, package blockages, and slippage caused by packages spinning freely in the air. At the same time, the rear row of raised composite wheels enhances grip to hook loose fabric, the middle row of buffer wheels provides stable support and drive, and the Teflon coating on the front row of smooth, low-resistance wheels ensures smooth package release. This forms a friction gradient conveying structure from high to low, improving the conveying stability and guiding accuracy of irregularly shaped soft packages during high-speed turns, and reducing package surface damage, wheel wear, and ineffective energy consumption caused by hard contact or slippage, further improving the overall sorting quality.

[0007] Preferably, in order to identify dented or irregularly shaped packages, the contour detection component includes at least two laser triangular displacement sensors fixedly installed at the output end of the conveyor belt. The laser triangular displacement sensors are connected to the input end of the controller. By collecting the bottom contour information of the package at multiple points through the laser triangular displacement sensors and transmitting it to the controller, the dented package can be identified and predicted, ensuring the adaptive adjustment of the subsequent lifting structure and drive structure.

[0008] Preferably, in order to buffer contact impact and increase grip, the inner layer of the raised composite wheel is provided with a polyurethane buffer layer, and the outer layer of the raised composite wheel is fixedly provided with multiple conical protrusions, which are evenly distributed. By embedding the outer conical protrusions into the bottom recessed fibers of the package, and at the same time absorbing the lifting impact of the inner polyurethane buffer layer, the frictional traction force on the loose soft package is increased and the package damage caused by hard impact is reduced.

[0009] Preferably, in order to provide stable support and long-lasting drive, the inner layer of the buffer wheel is provided with a second polyurethane buffer layer, and the outer layer of the buffer wheel is provided with wear-resistant ribs or patterns; the wear-resistant ribs or patterns on the outer layer provide longitudinal friction to ensure the continuity of conveying, while the second polyurethane buffer layer on the inner layer buffers heavy-load impacts, thereby improving the support stability and wear resistance life of the middle row of swing wheels.

[0010] Preferably, in order to achieve smooth release, the outer layer of the smooth, low-resistance wheel is coated with Teflon; the low coefficient of friction of the Teflon coating prevents the front end of the package from being dragged when it detaches from the front row of the balance wheel assembly, reducing the risk of the package slowing down or tipping over due to excessive friction.

[0011] Preferably, to achieve the drive rotation, the drive structure includes a rotating seat disposed on the frame corresponding to the position of the raised composite wheel, buffer wheel, or smooth low-resistance wheel; a groove formed on the top of the rotating seat; a base disposed within the frame and located below the rotating seat; an angle motor fixedly installed in the base for driving the rotating seat to rotate; and a drive motor fixedly installed in the groove for driving the raised composite wheel, buffer wheel, or smooth low-resistance wheel to rotate horizontally. The raised composite wheel, buffer wheel, or smooth low-resistance wheel is rotatably connected to the corresponding groove. Both the angle motor and the drive motor are connected to the output terminal of the controller. The rotating seat is rotatably connected to the base. The angle motor drives the rotating seat to rotate the entire swing wheel to achieve guidance and sorting. At the same time, the drive motor, through the transmission within the groove, causes the raised composite wheel, buffer wheel, or smooth low-resistance wheel to rotate, providing conveying power and completing the package guidance and sorting operation.

[0012] Preferably, in order to ensure the movement of the rotating seat, a guide groove is provided on the frame at the position corresponding to the rotating seat, and the rotating seat is slidably connected in the guide groove; the guide groove and the rotating seat are vertically slidably engaged to form a limiting guide structure, which ensures the straightness and repeatability of the lifting action.

[0013] Preferably, in order to lift the rear, middle, and front swing wheel groups, the lifting structure includes a servo cylinder fixedly installed inside the frame and located below the corresponding base. The piston rod of the servo cylinder is fixedly connected to the base, and the servo cylinder is connected to the output end of the controller. By receiving commands from the controller through the servo cylinder, the base can be driven to lift, thereby achieving a wave-like lifting posture with decreasing height for the middle, rear, and front swing wheel groups.

[0014] Preferably, in order to cover the gap between the rotating seat and the guide groove, a dust cover is provided on the frame at the position corresponding to the rotating seat to cover the gap between the rotating seat and the guide groove; by providing the dust cover, the assembly gap between the rotating seat and the guide groove can be covered, preventing sorting dust from entering the internal transmission and lifting structure, reducing lifting jamming and transmission wear caused by foreign objects.

[0015] Preferably, in order to enable the dust cover to extend and retract dynamically during the lifting and lowering of the rotating seat to maintain a dynamic seal, the dust cover is trumpet-shaped. The larger end of the dust cover is fixedly connected to the rotating seat, and the smaller end of the dust cover is rotatably connected to the edge of the guide groove. The trumpet-shaped folding structure extends or compresses synchronously with the lifting and lowering action of the rotating seat. At the same time, the rotatable connection between the smaller end and the edge of the guide groove avoids interference with the rotational movement of the rotating seat. This design can adapt to the lifting and rotating actions of the rotating seat, improving the sealing reliability and dustproof durability.

[0016] This logistics sorting and diversion device uses a contour detection component to pre-detect the bottom contour of the package, and the lifting structure drives the rear row of swing wheels, the middle row of swing wheels and the front row of swing wheels to rise in a wave-like manner with the height decreasing in sequence. This achieves active contour-following lifting of concave soft packages, reducing sorting omissions, package blockages and slippage caused by packages being suspended and spinning. This logistics sorting and diversion device enhances grip by using rear-row raised composite wheels to hook loose fabric, while the middle-row buffer wheels provide stable support and drive. The Teflon coating on the front-row smooth low-resistance wheels ensures smooth package release, forming a friction gradient conveying structure from high to low. This improves the conveying stability and guiding accuracy of irregularly shaped soft packages during high-speed turns, and reduces package surface damage, wheel wear, and ineffective energy consumption caused by hard contact or slippage, further improving the overall sorting quality. This logistics sorting and diversion device uses a trumpet-shaped folding structure to extend or compress synchronously with the lifting and lowering action of the rotating seat. At the same time, the smaller end is rotatably connected to the edge of the guide groove to avoid interfering with the rotational movement of the rotating seat. It can adapt to the lifting and rotating action of the rotating seat, improving the sealing reliability and dustproof durability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the application structure of a logistics sorting and diversion device. Figure 2 for Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the frame structure in a logistics sorting and diversion device. Figure 4 This is a schematic diagram of the drive structure in a logistics sorting and diversion device. Figure 5 This is an exploded structural diagram of the drive structure in a logistics sorting and diversion device. Figure 6 This is a cross-sectional schematic diagram of a raised composite wheel in a logistics sorting and diversion device; Figure 7 This is a cross-sectional schematic diagram of a buffer wheel in a logistics sorting and guiding device. Figure 8 This is a schematic diagram of the cross-sectional structure of a dust cover in a logistics sorting and diversion device.

[0018] In the picture: 1. Conveyor belt; 2. Frame; 21. Guide groove; 3. Rear swing wheel assembly; 31. Raised composite wheel; 311. Polyurethane buffer layer one; 312. Conical protrusion; 4. Middle row of balance wheels; 41. Buffer wheel; 411. Polyurethane buffer layer two; 5. Front row balance wheel assembly; 51. Smooth, low-resistance wheel; 6. Drive structure; 61. Rotating seat; 62. Groove; 63. Base; 64. Angle motor; 65. Drive motor; 7. Contour detection component; 71. Laser triangulation displacement sensor; 8. Lifting structure; 81. Servo electric cylinder; 9. Dust cover. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Example 1 This embodiment provides a logistics sorting and guiding diversion device, such as... Figures 1-7 As shown, the logistics sorting and guiding diversion device includes a frame 2 located at the output end of the conveyor belt 1, a rear row of swing wheels 3, a middle row of swing wheels 4, and a front row of swing wheels 5 arranged sequentially on the frame 2 along the conveying direction, and a drive structure 6 located on the frame 2 for rotating and reversing the rear row of swing wheels 3, the middle row of swing wheels 4, and the front row of swing wheels 5 to guide package sorting; the sorting and guiding diversion device also includes a controller, a contour detection component 7 located at the output end of the conveyor belt 1 for detecting the bottom contour of the package, and a drive structure 6 located on the frame 2. A lifting structure 8 is located above and below the drive structure 6 to lift the rear row of swing wheels 3, the middle row of swing wheels 4, and the front row of swing wheels 5. The lifting height of the middle row of swing wheels 4, the rear row of swing wheels 3, and the front row of swing wheels 5 decreases sequentially. The rear row of swing wheels 3, the middle row of swing wheels 4, and the front row of swing wheels 5 are each composed of multiple raised composite wheels 31, multiple buffer wheels 41, and multiple smooth low-resistance wheels 51. The contour detection component 7 is connected to the input end of the controller, and the rear row of swing wheels 3 and the drive structure 6 are both connected to the output end of the controller.

[0021] In order to identify dented and irregularly shaped packages, the contour detection component 7 includes at least two laser triangular displacement sensors 71 fixedly installed at the output end of the conveyor belt 1. The laser triangular displacement sensors 71 are connected to the input end of the controller. The laser triangular displacement sensors 71 collect the bottom contour information of the package at multiple points and transmit it to the controller to realize the identification and prediction of dented packages, and ensure the adaptive adjustment of the subsequent lifting structure 8 and driving structure 6.

[0022] In use, conveyor belt 1 consists of a conveyor frame, a circulating conveyor belt, and a conveyor drive motor. The conveyor drive motor continuously drives the circulating conveyor belt to move forward at a constant speed to carry and transfer various packages. When a package is identified by an RFID reader and its information is read, it is then smoothly transported by the circulating conveyor belt 1 to the corresponding workstation of frame 2 at the output end of conveyor belt 1. When the package arrives at the front detection area of ​​frame 2, at least two sets of laser triangular displacement sensors 71 inside the contour detection component 7 simultaneously emit lasers to scan the overall concave and convex contour of the bottom of the package. The laser triangular displacement sensors 71 collect the contour data of the bottom of the package in real time and transmit the contour signal to the controller input to complete the package shape determination. The controller receives the data from the wheel... After receiving the contour signal, the built-in algorithm calculates and identifies whether there is a concave area on the bottom of the package, as well as the depth and location of the concave area. Simultaneously, based on the package's speed and position information, the required lifting height and action sequence for the rear row swing wheel group 3, middle row swing wheel group 4, and front row swing wheel group 5 are calculated, activating the lifting structure 8 and drive structure 6. Then, upon receiving controller commands, the rear row swing wheel group 3, middle row swing wheel group 4, and front row swing wheel group 5, arranged along the conveying direction on the frame 2, are simultaneously lifted. The lifting is performed in a strictly progressively lower order, with the middle row swing wheel group 4 having the highest lifting height, the rear row swing wheel group 3 having the middle lifting height, and the front row swing wheel group 5 having the lowest lifting height, creating a wave-like support surface. The rear row of swing wheels 3, composed of several raised composite wheels 31, is the first to contact the concave center of gravity area of ​​the package to achieve initial lifting. The middle row of swing wheels 4, composed of several buffer wheels 41, is simultaneously lifted to support the central body of the package. The front row of swing wheels 5, composed of several smooth, low-resistance wheels 51, provides slight lifting support to the front end of the package. Relying on the cooperation of the three layers of swing wheels with different heights, the bottom of the concave package is lifted to conform to the shape, avoiding a large area of ​​the package bottom being suspended in the air. While the lifting structure 8 completes the lifting and positioning of the swing wheel group, the drive structure 6 starts working. On the one hand, the drive structure 6 drives the entire rear row of swing wheels 3, middle row of swing wheels 4, and front row of swing wheels 5 to rotate synchronously and change direction to the diversion tilt angle corresponding to the sorting destination. On the other hand, the drive structure 6 drives the raised composite wheels to rotate simultaneously to support the central center of gravity area of ​​the package. The combined wheel 31, buffer wheel 41, and smooth low-resistance wheel 51 continuously rotate to provide forward conveying power. During operation, the raised composite wheel 31 of the rear row of swing wheel group 3 relies on the outer layer to increase the friction of the contact surface and firmly grip the bottom of the loose soft package to prevent slippage and deviation. The buffer wheel 41 of the middle row of swing wheel group 4 balances the concentrated load of the package and buffers the sorting impact through its own buffer structure to maintain the stability of the conveying process. The smooth low-resistance wheel 51 of the front row of swing wheel group 5 relies on the surface low-resistance coating to reduce the frictional resistance of the package discharge, so that the package can smoothly leave the sorting station. After the concave package is lifted by wave layering and reverse conveying, it smoothly completes the diversion and sorting operation of the corresponding channel under the combined action of the rotation thrust of each group of swing wheels and the guide angle of the drive structure 6.If the laser triangular displacement sensor 71 detects a regular flat package, the controller controls the lifting structure 8 to synchronously lower the rear row of swing wheels 3, the middle row of swing wheels 4, and the front row of swing wheels 5 to a low position. The drive structure 6 then drives each group of swing wheels to rotate, and the overall rotation reverses direction to complete the sorting and conveying of the regular flat package. After the current package is sorted and leaves the rack 2 area, subsequent packages awaiting sorting continue to be conveyed along the conveyor belt 1, repeating the entire detection, calculation, lifting, and reversing process.

[0023] Specifically, the drive structure 6 includes a rotating seat 61 located on the frame 2 at the position corresponding to the raised composite wheel 31, buffer wheel 41, or smooth low-resistance wheel 51; a groove 62 formed on the top of the rotating seat 61; a base 63 located inside the frame 2 and below the rotating seat 61; an angle motor 64 fixedly installed in the base 63 for driving the rotating seat 61 to rotate; and a drive motor 65 fixedly installed in the groove 62 for driving the raised composite wheel 31, buffer wheel 41, or smooth low-resistance wheel 51 to rotate horizontally. The raised composite wheel 31, buffer wheel 41, or smooth low-resistance wheel 51 is rotatably connected in the corresponding groove 62. Both the angle motor 64 and the drive motor 65 are connected to the output end of the controller. The rotating seat 61 is rotatably connected to the base 63.

[0024] When a package is identified by an RFID reader, its sorting destination parameters are obtained. The package is then continuously conveyed via conveyor belt 1 to the sorting station above rack 2. The controller outputs corresponding control commands based on the package sorting information read by the RFID reader. The controller first outputs a steering control signal to the angle motor 64. It can output different angle parameters according to the station differences of the rear row of swing wheel group 3, the middle row of swing wheel group 4, and the front row of swing wheel group 5, so that the angle motor 64 at each position can operate independently. After the angle motor 64 starts, it drives the rotating seat 61 to rotate relative to the base 63 to the preset diversion tilt angle. The rotating seat 61 simultaneously drives the raised composite wheel assembled inside the top groove 62. The 31 or buffer wheel 41 or smooth low-resistance wheel 51 rotate synchronously to complete the preset adjustment of the guide angle of all the balance wheels, and determine the subsequent flow direction of the package. During the synchronous process of the angle motor 64 driving the rotating seat 61 to change direction, or after the change is completed, the controller immediately outputs the operation command to the drive motor 65 inside the groove 62. The drive motor 65 starts and continuously drives the corresponding raised composite wheel 31 or buffer wheel 41 or smooth low-resistance wheel 51 to rotate around its own horizontal wheel axis. The rotation direction of the balance wheel matches the conveyor belt 1 conveying direction, providing a stable and continuous horizontal conveying driving force for the package placed above it, thereby providing the package placed above the balance wheel with a stable horizontal conveying driving force. The continuous forward conveying force, under the coordinated action of the angle motor 64 and the drive motor 65, causes the raised composite wheel 31, buffer wheel 41, or smooth low-resistance wheel 51 to both rotate around its own horizontal axis to convey the package and deflect around the vertical axis with the rotating seat 61 to change the direction of the package's movement. The combined action of these two actions causes the package to deviate from its original conveying direction at a preset tilt angle while maintaining forward movement, eventually sliding into the corresponding sorting channel. When the lifting structure 8 drives the base 63 to rise vertically along the guide groove 21, since the rotating seat 61 is rotatably connected to the base 63 and the angle motor 64 is fixedly installed inside the base 63, the rise of the base 63 drives the rotating seat 61 to rotate. The moving base 61, groove 62, angle motor 64, drive motor 65, and corresponding swing wheels rise synchronously as a whole. Throughout the entire lifting process, the transmission connection between angle motor 64 and drive motor 65 remains unchanged, ensuring that each swing wheel can still independently perform steering and rotation actions when it rises to different lifting heights. After sorting is completed, the controller outputs a reset signal to angle motor 64. Angle motor 64 drives rotating base 61 to rotate each swing wheel in the opposite direction back to the initial angle consistent with the conveying direction. At the same time, drive motor 65 continues to rotate or adjusts its speed according to subsequent instructions to prepare for the sorting and guiding operation of the next package.

[0025] In addition, in order to ensure the movement of the rotating seat 61, a guide groove 21 is provided on the frame 2 at the position corresponding to the rotating seat 61, and the rotating seat 61 is slidably connected in the guide groove 21; the guide groove 21 and the rotating seat 61 are vertically slidably cooperate to form a limiting guide structure, which improves the straightness and repeatability of the lifting action.

[0026] Furthermore, the lifting structure 8 includes a servo cylinder 81 fixedly installed inside the frame 2 and located below the corresponding base 63. The piston rod of the servo cylinder 81 is fixedly connected to the base 63, and the servo cylinder 81 is connected to the output end of the controller. By receiving the controller command through the servo cylinder 81, the base 63 can be driven to lift and lower, thereby realizing a wave-like lifting posture with decreasing height of the middle row of swing wheel group 4, the rear row of swing wheel group 3, and the front row of swing wheel group 5.

[0027] When the laser triangular displacement sensor 71 inside the contour detection component 7 completes the data acquisition of the bottom contour of the package and transmits the contour detection signal to the controller in real time, the controller identifies the position and depth of the bottom depression of the package through the built-in algorithm, and calculates the independent lifting height parameters corresponding to the middle row swing wheel group 4, the rear row swing wheel group 3, and the front row swing wheel group 5 in combination with the package conveying position and traveling speed. Then, the controller outputs the lifting control signal to the lifting structure 8. The lifting structure 8 is composed of multiple independently arranged servo cylinders 81. The servo cylinders 81 are fixedly installed inside the frame 2 and are arranged directly below each group of bases 63. The top of the piston rod of the servo cylinder 81 is rigidly fixed to the bottom of the base 63, so that the base 63 can completely follow the piston rod of the servo cylinder 81 to make vertical lifting linear motion. When the servo cylinder 81 receives the lifting command from the controller, each group of servo cylinders 81 independently extends the piston rod according to the preset stroke, pushing the corresponding base 63 upward. The base 63 synchronously drives the groove 62 of the upper rotating seat 61 and the protrusion installed in the groove 62. The composite wheel 31, buffer wheel 41, and smooth, low-resistance wheel 51 are raised synchronously as a whole. Relying on the differentiated stroke control of multiple servo electric cylinders 81, the middle row of swing wheel assembly 4 achieves the maximum lifting stroke and highest lifting height, the rear row of swing wheel assembly 3 has a moderate lifting stroke and height, and the front row of swing wheel assembly 5 has the minimum lifting stroke and lowest lifting height. Ultimately, this forms a gradually decreasing wave-like contoured support posture above the frame 2, with a high center and low rear and low front. This wave-like posture conforms to the concave bottom contour, with the rear row of swing wheel assembly 3 prioritizing the support and wrapping of the concave center of gravity area, and the middle row of swing wheel assembly... 4. The central body of the package is stably supported, and the front row of swing wheels 5 provides slight support to the front end of the package to prevent gaps at the bottom of the package and reduce sorting faults such as slippage, blockage, and displacement of dented soft packages. When the laser triangular displacement sensor 71 detects that a regular package with a flat bottom surface or the current dented package has been sorted and left the workstation, the controller controls the piston rods of each group of servo electric cylinders 81 to retract and reset synchronously, driving the base 63 and all the swing wheels above to fall back to the low initial state, so that the device returns to the standard sorting condition and waits for the next round of package detection and sorting operations.

[0028] Furthermore, the inner layer of the raised composite wheel 31 is provided with a polyurethane buffer layer 311, and the outer layer of the raised composite wheel 31 is fixedly provided with multiple conical protrusions 312, which are evenly distributed.

[0029] When the lifting structure 8 drives the rear row of swing wheels 3 to rise to the preset lifting height, the concave area at the bottom of the package first contacts the raised composite wheel 31 of the rear row of swing wheels 3. At this time, multiple conical protrusions 312 evenly and fixedly distributed on the outer layer of the raised composite wheel 31 first abut against the loose fabric or woven bag surface at the bottom of the package under the lifting pressure. Since the conical protrusions 312 have a pointed structure and are distributed in a multi-point array, their tips are embedded in the gaps between the fabric fibers or woven bag mesh under pressure, forming a multi-point piercing mechanical anchoring effect, thereby establishing a reliable static friction gripping force between the bottom of the package and the raised composite wheel 31. While the conical protrusions 312 are embedded in the fabric and establish gripping, the initial contact impact force generated by the wave-like lifting of the package and the dynamic load during the subsequent conveying process are transmitted through the outer layer of the raised composite wheel 31 to the polyurethane buffer layer 311 set in its inner layer. The buffer layer 311, with its high damping and high elasticity, undergoes compression deformation, absorbing the instantaneous impact energy and converting it into frictional heat energy between internal molecular chains. At the same time, it effectively buffers and isolates the lifting impact and conveying vibration. With the conical protrusion 312 providing reliable gripping to prevent the loose fabric from slipping and shifting relative to the wheel surface, and the polyurethane buffer layer 311 absorbing the impact to protect the subsequent transmission components, the protruding composite wheel 31 continues to rotate around its own horizontal axis under the drive of the drive motor 65. At this time, the conical protrusion 312 embedded in the fabric uses its established static friction gripping force to stably hook the tail of the package and push it in the conveying direction, so that the tail of the package can follow the rotation of the protruding composite wheel 31 and obtain the initial driving force for forward movement. Together with the subsequent support and drive of the middle row buffer wheel 41 and the front row smooth low-resistance wheel 51, it completes the complete contour lifting and smooth conveying of the concave soft package.

[0030] Furthermore, the inner layer of the buffer wheel 41 is provided with a polyurethane buffer layer 411, and the outer layer of the buffer wheel 41 is provided with wear-resistant ribs or patterns.

[0031] When the middle of the package reaches above the buffer wheel 41 of the middle row of wheel assembly 4, the wear-resistant ribs or patterns on the outer layer of the buffer wheel 41 first contact the bottom of the package. These wear-resistant ribs or patterns are distributed in a ring or spiral shape along the outer circumference of the buffer wheel 41. Their raised structures embed into the bottom surface of the package under the lifting pressure to form a continuous interlocking contact band, providing a stable and continuous longitudinal friction force for the middle of the package to maintain the continuity of conveying. At the same time, its highly wear-resistant material properties effectively resist the erosion of sand and paper scraps in long-term sorting operations, extending the service life of the buffer wheel 41. While the wear-resistant ribs or patterns establish longitudinal driving force, the heavy concentrated load in the middle of the package and the dynamic impact force generated by sorting and turning are transmitted to the outer layer of the buffer wheel 41. The inner layer is a polyurethane buffer layer 411. With its high damping and high elasticity, the polyurethane buffer layer 411 undergoes compression deformation under pressure, which transforms the concentrated load into a uniform surface pressure distribution to avoid excessive local pressure that could cause the package to deform and break. At the same time, it absorbs the vibration and impact energy and converts it into frictional heat energy between the internal molecular chains. It also smooths out the peak load transmitted to the rotating seat 61, angle motor 64 and drive motor 65 and other subsequent transmission components, achieving effective buffering and isolation of heavy impact. This ensures that when the middle section of the package passes through the middle row of swing wheel group 4, it can obtain sufficient conveying thrust to overcome the turning resistance and obtain a smooth load transition to maintain the overall conveying stability.

[0032] It is worth noting that the outer layer of the smooth, low-resistance wheel 51 is coated with Teflon.

[0033] At the critical moment when the front end of the package is about to detach from the front row of the swing wheel group 5 and enter the next section of the conveyor line or sorting chute, due to the low friction characteristics of the Teflon coating, the front end of the package will not be dragged, slowed down or overturned due to wheel surface adhesion or excessive friction. Instead, it will smoothly slide off the surface of the smooth low-resistance wheel 51 at a linear speed that is basically consistent with the conveying speed, completing the smooth transition from the front row of the swing wheel group 5 to the subsequent work station, and completing the complete wave-like contour lifting and smooth release conveying of the concave soft package.

[0034] Example 2 Unlike Example 1, as Figure 8 As shown, in order to cover the gap between the rotating seat 61 and the guide groove 21, a dust cover 9 is provided on the frame 2 at the position corresponding to the rotating seat 61 to cover the gap between the rotating seat 61 and the guide groove 21. The dust cover 9 is horn-shaped, with the larger end of the dust cover 9 fixedly connected to the rotating seat 61 and the smaller end of the dust cover 9 rotatably connected to the edge of the guide groove 21.

[0035] When the rotating seat 61 rises vertically along the guide groove 21 under the drive of the lifting structure 8, the dust cover 9 moves upward synchronously with the rotating seat 61. Its flared structure naturally extends during the ascent to compensate for the increased axial distance between the rotating seat 61 and the edge of the guide groove 21. At the same time, its smaller end can rotate freely due to its rotatable connection with the edge of the guide groove 21 to adapt to the displacement changes when the rotating seat 61 rises. When the rotating seat 61 falls back to the low position, the dust cover 9 moves downward synchronously. Its flared structure is compressed and folded accordingly to adapt to the reduced axial distance. The rotatable connection structure at the smaller end rotates in the opposite direction in sync with the descent of the rotating seat 61 to adapt to the displacement changes. Thus, the dust cover 9 can always maintain dynamic shielding and sealing of the gap between the rotating seat 61 and the guide groove 21 throughout the entire composite motion of the rotating seat 61's lifting and rotation, preventing sorting dust and foreign objects from entering the internal transmission and lifting structure 8, and extending the equipment maintenance cycle.

[0036] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.

Claims

1. A logistics sorting and diversion device, comprising a frame (2) disposed at the output end of a conveyor belt (1), a rear row of swing wheels (3), a middle row of swing wheels (4), and a front row of swing wheels (5) disposed on the frame (2) and arranged sequentially along the conveying direction, and a drive structure (6) disposed on the frame (2) for rotating and reversing the rear row of swing wheels (3), the middle row of swing wheels (4), and the front row of swing wheels (5) to guide package sorting; Its characteristics are: The sorting and guiding diversion device also includes a controller, a contour detection component (7) set at the output end of the conveyor belt (1) for detecting the bottom contour of the package, and a lifting structure (8) set on the frame (2) and located below the drive structure (6) for lifting the rear row of swing wheel group (3), the middle row of swing wheel group (4) and the front row of swing wheel group (5). The lifting height of the middle row of balance wheels (4), the rear row of balance wheels (3) and the front row of balance wheels (5) decreases sequentially, and the rear row of balance wheels (3), the middle row of balance wheels (4) and the front row of balance wheels (5) are respectively composed of multiple raised composite wheels (31), multiple buffer wheels (41) and multiple smooth low-resistance wheels (51); The contour detection component (7) is connected to the input end of the controller, and the rear row of swing wheels (3) and the drive structure (6) are both connected to the output end of the controller.

2. The logistics sorting and guiding diversion device according to claim 1, characterized in that: The contour detection component (7) includes at least two laser triangular displacement sensors (71) fixedly installed at the output end of the conveyor belt (1), and the laser triangular displacement sensors (71) are connected to the input end of the controller.

3. The logistics sorting and guiding diversion device according to claim 1, characterized in that: The inner layer of the raised composite wheel (31) is provided with a polyurethane buffer layer (311), and the outer layer of the raised composite wheel (31) is fixedly provided with a plurality of conical protrusions (312), and the plurality of conical protrusions (312) are evenly distributed.

4. The logistics sorting and guiding diversion device according to claim 1, characterized in that: The inner layer of the buffer wheel (41) is provided with a second polyurethane buffer layer (411), and the outer layer of the buffer wheel (41) is provided with wear-resistant ribs or patterns.

5. The logistics sorting and guiding diversion device according to claim 1, characterized in that: The outer layer of the smooth, low-resistance wheel (51) is a Teflon coating.

6. The logistics sorting and guiding diversion device according to claim 1, characterized in that: The drive structure (6) includes a rotating seat (61) located on the frame (2) corresponding to the position of the raised composite wheel (31), the buffer wheel (41), or the smooth low-resistance wheel (51), a groove (62) opened on the top of the rotating seat (61), a base (63) located in the frame (2) and below the rotating seat (61), an angle motor (64) fixedly installed in the base (63) for driving the rotating seat (61) to rotate, and a drive motor (65) fixedly installed in the groove (62) for driving the raised composite wheel (31), the buffer wheel (41), or the smooth low-resistance wheel (51) to rotate horizontally. The raised composite wheel (31), the buffer wheel (41), or the smooth low-resistance wheel (51) are rotatably connected in the groove (62). The angle motor (64) and the drive motor (65) are both connected to the output end of the controller. The rotating seat (61) is rotatably connected to the base (63).

7. The logistics sorting and guiding diversion device according to claim 6, characterized in that: The frame (2) is provided with a guide groove (21) at the position corresponding to the rotating seat (61), and the rotating seat (61) is slidably connected in the guide groove (21).

8. The logistics sorting and guiding diversion device according to claim 7, characterized in that: The lifting structure (8) includes a servo cylinder (81) fixedly installed in the frame (2) and located below the corresponding base (63). The piston rod of the servo cylinder (81) is fixedly connected to the base (63), and the servo cylinder (81) is connected to the output end of the controller.

9. The logistics sorting and guiding diversion device according to claim 6, characterized in that: A dust cover (9) is provided on the frame (2) at the position corresponding to the rotating seat (61) to cover the gap between the rotating seat (61) and the guide groove (21).

10. The logistics sorting and guiding diversion device according to claim 9, characterized in that: The dust cover (9) is horn-shaped. The larger end of the dust cover (9) is fixedly connected to the rotating seat (61), and the smaller end of the dust cover (9) is rotatably connected to the edge of the guide groove (21).

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