Logistics sorting conveyor system

Abstract

The present application relates to the field of logistics conveying equipment, and discloses a logistics sorting conveying system, which comprises a conveying line, wherein the conveying line is sequentially provided with an RFID identification device, a balance wheel sorting device and a chute speed reduction device along the conveying direction of the logistics piece; the RFID identification device is composed of a portal, an upper RFID reader mounted on the top of the portal and having a signal emission end facing the conveying surface, and a bottom RFID inductor mounted on the bottom of the conveying line and having an inductive end facing the lower surface and being provided with a non-metallic barrier between the conveying surface; the two are cooperated to form an identification area; the balance wheel sorting device comprises a rack and multiple sets of swing sorting modules; the chute speed reduction device comprises a chute body, which is internally provided with a speed reduction roller mechanism, a driving conveying mechanism and a central roller mechanism which are butt-jointed along the conveying direction and have consistent downward inclination angles, and can gradually reduce the falling speed of the logistics piece. The logistics sorting system solves the problems of the existing system, such as identification missing judgment, unstable sorting, easy damage of the logistics piece and low efficiency, and realizes accurate identification, stable sorting and safe conveying of the logistics piece.

Description

Technical Field

[0001] This invention relates to the field of logistics conveying equipment technology, and in particular to a logistics sorting and conveying system. Background Technology

[0002] With the development of society, the scale of logistics distribution is constantly expanding, and the application of automated sorting equipment is becoming more and more widespread. In the current logistics sorting operation, it is usually necessary to first read the address information on the logistics item label through the identification device, and then use the swing wheel sorting device to divert logistics items with different addresses to the corresponding chute, and finally complete the sorting and loading.

[0003] However, existing sorting and conveying systems still have many shortcomings: First, existing RFID identification devices generally only have reading mechanisms installed above the conveyor line. When logistics items are stacked or tags are attached to the bottom of logistics items, there will be problems with missed identification, which will affect the sorting accuracy. Secondly, in the existing swing wheel sorting device, the synchronous transmission structure design of multiple conveying and steering components is unreasonable, resulting in poor operational stability. After long-term use, rotational misalignment is likely to occur, leading to incorrect diversion direction. Finally, when the logistics items slide from the sorting end into the chute and fall onto the loading telescopic conveyor, the falling speed is too fast, which can easily damage the logistics items and make them easy to fall off the telescopic conveyor, affecting the smoothness of sorting and conveying. At the same time, when the loading process at the back end is slow, the goods will be stuck in the chute. When the back end restarts, manual cleaning and unblocking are required, which increases the labor burden and reduces sorting efficiency. Summary of the Invention

[0004] In order to address the technical deficiencies mentioned in the background art, the purpose of this invention is to provide a logistics sorting and conveying system that aims to solve the problems of missed identification, unstable sorting, easy damage to logistics items, and low efficiency in existing logistics sorting systems, thereby achieving accurate identification, stable sorting, and safe conveying of logistics items.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A logistics sorting and conveying system includes several conveyor lines composed of belt conveyors. Along the conveying direction of the logistics items, each conveyor line is sequentially equipped with an RFID identification device, a swing wheel sorting device, and a chute slowing device. The RFID identification device includes a gantry, an upper RFID reader, and a lower RFID sensor. The gantry spans the top of the conveyor line and is fixed to both sides of the conveyor line. The upper RFID reader is installed on the top of the gantry, with its signal transmitting end facing the conveying surface of the conveyor line. The lower RFID sensor is installed at the bottom of the conveyor line, with its sensing end facing the lower surface of the conveyor line. A non-metallic partition is provided between the lower RFID sensor and the conveying surface of the conveyor line. The upper RFID reader and the lower RFID sensor cooperate to form an RFID identification area covering the conveying path of the conveyor line. The swing wheel sorting device includes a frame and multiple swing sorting modules installed in the frame. The swing sorting module includes a mounting frame, several conveying and steering components arranged at intervals along the length of the mounting frame, and a swing drive mechanism for driving the conveying and steering components to rotate synchronously. The conveying and steering components consist of a steering component and a conveying component. The steering component is rotatably assembled on the mounting frame through a first connecting structure, and the conveying component is movably embedded in the steering component. The chute slowing device includes a chute body, a slowing roller mechanism, an active conveying mechanism, and a central roller mechanism arranged sequentially within the chute body along the conveying direction of the material; the slowing roller mechanism, the active conveying mechanism, and the central roller mechanism are arranged at a downward inclination with the same inclination angle, so as to gradually reduce the falling speed of the material as it is conveyed downward along the chute body.

[0006] Preferably, the non-metallic partition is a plastic plate, which is fixed to the conveyor line, and the upper surface of the plastic plate is parallel to the lower surface of the conveyor line with a preset gap.

[0007] Preferably, the swing drive mechanism includes a linkage transmission assembly and a cylinder drive component. The linkage transmission assembly is fixedly connected to the bottom of a plurality of steering components. The output end of the cylinder drive component is connected to the linkage transmission assembly via a second connection structure to drive the steering components to rotate around their own axes as the linkage transmission assembly swings.

[0008] Preferably, the linkage transmission assembly includes at least two parallel first connecting rods and second connecting rods, the first connecting rods and the second connecting rods being connected to the steering component respectively by bolt fasteners, and the length of the first connecting rod is shorter than the length of the second connecting rod.

[0009] Preferably, the cylinder drive is a double-acting three-position cylinder. The fixed end of the three-position cylinder is fixedly connected to the mounting bracket through a cylinder mounting seat. The three-position cylinder has three working positions: center, left, and right. It can drive the connecting plate to drive the first connecting rod and the second connecting rod to achieve three-position switching.

[0010] Preferably, the slowing roller mechanism includes a rubber-coated roller group and a galvanized roller group. The rubber-coated roller group is arranged near the input end of the slowing roller mechanism, and the galvanized roller group is arranged near the output end of the slowing roller mechanism. Both the rubber-coated roller group and the galvanized roller group are arranged obliquely, and together they form an arc-shaped path with a central angle of 15°-30°.

[0011] Preferably, the active conveying mechanism includes an active roller, a driven roller, and an adjusting roller, wherein the driven roller is connected to the output end of the slow-moving roller mechanism; the active roller, the driven roller, and the adjusting roller are all rotatably connected to the chute body, and the three are connected by a conveyor belt.

[0012] Preferably, the central roller mechanism includes two sets of unpowered rollers arranged in a V-shape with their openings facing each other, and the unpowered rollers are rotatably connected to the slide body.

[0013] Preferably, the chute retarder further includes a tail slide plate, which is connected between the output end of the central roller mechanism and the loading telescopic conveyor. One end of the tail slide plate connected to the central roller mechanism is provided with an adjustment frame, and the other end is provided with a buffer assembly between it and the loading telescopic conveyor. The adjustment frame is hinged to the end of the tail slide plate. The buffer assembly includes an arc-shaped buffer plate and a buffer roller. The end of the arc-shaped buffer plate away from the central roller mechanism is bent upward to form an arc-shaped structure. The buffer roller is rotatably connected to the bottom of the arc-shaped buffer plate through a fixed frame.

[0014] Preferably, side baffles are provided on both sides of the chute retarder, the side baffles extend along the conveying direction of the material, and the height of the side baffles is higher than the top height of each mechanism inside the chute body.

[0015] In summary, the beneficial effects of the present invention are as follows: 1. This invention uses an upper RFID reader and a bottom RFID sensor to cover the entire conveying path. No matter where the RFID tag of the logistics item is pasted, it can be accurately identified, which solves the problem of missed identification caused by poor tag pasting position or logistics stacking, and effectively improves the sorting accuracy.

[0016] 2. This invention uses a swing drive mechanism composed of a linkage transmission assembly and a cylinder drive component to drive multiple conveying and steering components to rotate synchronously. The double linkage connection structure, combined with the gear switching of the three-position cylinder, ensures stable and reliable transmission. Even after long-term operation, it is not prone to rotational misalignment, thus ensuring the accuracy of the sorting and diversion direction of the swing wheel and improving the operational stability of the device.

[0017] 3. The present invention uses a slow-speed roller mechanism, an active conveying mechanism, and a central roller mechanism arranged sequentially within the chute body to gradually decelerate the falling logistics items. This avoids the problem of the logistics items being damaged by impact or detaching from the telescopic conveyor due to excessive falling speed. When the loading process at the rear is slow and temporary delays are required, the active conveying mechanism can actively support the logistics items to prevent the goods from accumulating in the chute. This eliminates the need for manual clearing, reduces the workload, and effectively improves the overall efficiency of sorting and conveying. Attached Figure Description

[0018] Figure 1 This is an overall assembly drawing of the logistics sorting and conveying system of the present invention; Figure 2 This is a top view of the logistics sorting and conveying system of the present invention, with arrows indicating the conveying direction; Figure 3 yes Figure 2 A cross-sectional view of the AA plane; Figure 4 This is a schematic diagram of the RFID identification device in this invention; Figure 5 This is a longitudinal sectional view of the RFID identification device in this invention, with the arrow indicating the conveying direction; Figure 6 This is a schematic diagram of the structure of the swing wheel sorting device in this invention; Figure 7 This is a schematic diagram of the structure of a single swing sorting module in this invention; Figure 8 This is a schematic diagram of the rear-side structure of a single-group swing sorting module in this invention; Figure 9 This is a schematic diagram of the linkage transmission assembly and cylinder drive component in this invention; Figure 10 This is a top view of the slow-speed roller mechanism in this invention; Figure 11 This is a longitudinal sectional view of the active conveying mechanism in this invention; Figure 12 This is a schematic diagram of the central roller mechanism in this invention; Figure 13 This is a longitudinal sectional view of the tail slide plate in this invention; Figure 14 This is a schematic diagram of the buffer component in this invention.

[0019] Explanation of the reference numerals in the figure: 1. Conveyor line; 2. RFID identification device; 21. Gantry; 22. Upper RFID reader; 23. Bottom RFID sensor; 24. Non-metallic partition; 25. Control device; 3. Swing wheel sorting device; 31. Frame; 32. Swing sorting module; 321. Mounting frame; 322. Steering component; 323. Conveying component; 324. Linkage transmission assembly; 3241. First connecting rod; 3242. Second connecting rod; 325. Cylinder drive component; 4. Slide chute retarder; 41. Slide chute body; 42. Regulator... 421. High-speed roller mechanism; 422. Rubber-coated roller assembly; 43. Galvanized roller assembly; 44. Active conveyor mechanism; 45. Active roller; 46. Driven roller; 47. Adjusting roller; 48. Conveyor belt; 49. Centered roller mechanism; 40. Non-powered roller; 41. Support frame; 42. Tail slide plate; 43. Adjusting frame; 44. Arc-shaped buffer plate; 45. Buffer roller; 46. Fixed frame; 7. First connecting structure; 8. Second connecting structure; 9. Side baffle; 10. Support column; 11. Telescopic chute. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0021] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0022] In the description of this invention, the use of terms such as "a number" means one or more, with "more than" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while terms like "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0023] The following is in conjunction with the appendix Figure 1-14The present invention will be further described in detail with respect to an embodiment of a logistics sorting and conveying system.

[0024] A logistics sorting and conveying system, such as Figure 1-3 As shown, the conveyor line 1 consists of several belt conveyors spliced ​​together. The belt conveyors adopt existing conventional structures and can be flexibly spliced ​​according to the size and layout of the actual sorting site. Adjacent belt conveyors are fixedly connected by flanges or buckle structures to ensure that the conveying surfaces are flush and to avoid the logistics items getting stuck during the conveying process.

[0025] Among them, conveyor line 1 is along the direction of material transport ( Figure 2 (In the direction indicated by the middle arrow) RFID identification device 2, swing wheel sorting device 3 and chute slowing device 4 are arranged in sequence. The three are fixedly connected to the frame of the conveyor line 1 by bolt fasteners to ensure that the logistics items can be smoothly transferred and avoid falling or jamming.

[0026] In some implementations, such as Figure 2 , 4 As shown in Figure 5, the RFID identification device 2 includes a gantry 21, an upper RFID reader 22, and a bottom RFID sensor 23. The gantry 21 is made of stainless steel and has a frame structure. It spans above the conveyor line 1 and is fixed to the two side frames of the conveyor line 1 by expansion bolts. The height of the gantry 21 can be adjusted according to the maximum height of the logistics items, and is generally set to 1.2-1.5m to ensure that logistics items of different sizes can pass through smoothly.

[0027] Specifically, the upper RFID reader 22 is a high-frequency RFID reader (model optional MFRC522), which is mounted on the top center of the gantry 21 via a bracket. The bracket and gantry 21 are detachably connected by bolts for easy maintenance and debugging. The signal transmitting end of the upper RFID reader 22 faces the conveying surface of the conveyor line 1, and the transmission angle is adjustable from 30° to 60° to ensure that the signal can cover the entire conveying width of the conveyor line 1. The bottom RFID sensor 23 is an ultra-high frequency RFID sensor (model optional R2000), which is fixed to the bottom frame of the conveyor line 1 via a mounting base. Shock-absorbing pads are provided between the mounting base and the conveyor line 1 to reduce the impact of vibration of the conveyor line 1 on the bottom RFID sensor 23. The sensing end of the bottom RFID sensor 23 faces the lower surface of the conveyor line 1, and a non-metallic partition 24 is provided between the bottom RFID sensor 23 and the conveying surface of the conveyor line 1 to protect the bottom RFID sensor 23 and prevent the metal parts of the conveyor line 1 from interfering with the sensing signal.

[0028] In some implementations, such as Figure 5As shown, the non-metallic partition 24 is a plastic plate, which is fixed on the conveyor line 1, and the upper surface of the plastic plate is parallel to the lower surface of the conveyor line 1 with a preset gap.

[0029] Specifically, the non-metallic partition 24 is a polyvinyl chloride (PVC) plastic sheet with a thickness of 20mm. It is fixed to the bottom crossbeam of the conveyor line 1 by a buckle. The upper surface of the plastic sheet is parallel to the lower surface of the conveyor line 1 and there is a preset gap. The preset gap is controlled at 10-15mm, which does not affect the sensing effect of the bottom RFID sensor 23 and prevents the conveyor line 1 from rubbing against the plastic sheet during operation.

[0030] To further improve the accuracy of detection, in some embodiments, both the upper RFID reader 22 and the bottom RFID sensor 23 are electrically connected to an external control device 25 (using a PLC controller, model S7-200). The two work together to form an RFID identification area covering the conveying path of the conveyor line 1. When a logistics item passes through the identification area, regardless of whether its RFID tag is affixed to the top, side, or bottom, or whether the logistics items are stacked, at least one of the upper RFID reader 22 and the bottom RFID sensor 23 can read the tag information and transmit the information to the control device 25. The control device 25 parses the information to determine the sorting destination of the logistics item, providing signal support for subsequent sorting operations and effectively avoiding the problem of missed identification.

[0031] In some implementations, such as Figure 1 , 6 As shown in Figures 7 and 8, the swing wheel sorting device 3 includes a frame 31 and multiple swing sorting modules 32 installed within the frame 31. The frame 31 is made of aluminum alloy and has an overall frame structure. Its bottom is fixed to the ground by support columns 8. The top of the frame 31 is flush with the conveying surface of the conveyor line 1 to ensure that the logistics items can smoothly enter the swing sorting modules 32. The number of swing sorting modules 32 is determined according to the width of the conveyor line 1, and is generally set to 2-4 groups. Each group of swing sorting modules 32 is evenly arranged along the width direction of the conveyor line 1, and the spacing between adjacent groups is 30-50cm.

[0032] Specifically, each swing sorting module 32 includes a mounting frame 321, several conveying steering assemblies arranged at intervals along the length of the mounting frame 321, and a swing drive mechanism for driving the conveying steering assemblies to rotate synchronously. The mounting frame 321 is made of welded steel plate and is fixedly installed inside the frame 31. The length of the mounting frame 321 is adapted to the width of the conveyor line 1. The number of conveying steering assemblies is determined according to the length of the mounting frame 321. Generally, 4-6 are arranged per meter of mounting frame 321, and the spacing between two adjacent conveying steering assemblies is 10-20cm.

[0033] In some implementations, such as Figure 7 , 8 As shown, the conveying steering assembly consists of a steering component 322 and a conveying component 323. The steering component 322 is made of stainless steel and has a cylindrical structure. It is rotatably mounted on the mounting frame 321 through the first connecting structure 5.

[0034] Specifically, the first connecting structure 5 is a mating structure of a bearing seat and a rotating shaft. The rotating shaft is fixed at the bottom of the steering component 322, and the bearing seat is fixed on the mounting bracket 321, ensuring that the steering component 322 can rotate flexibly around its own axis. The conveying component 323 is a small roller, which is movably embedded in the steering component 322. The surface of the roller is covered with a rubber layer to increase the friction between it and the material. The conveying component 323 can rotate around its own axis to realize the conveying of the material.

[0035] In some implementations, such as Figure 7-9 As shown, the swing drive mechanism includes a linkage drive assembly 324 and a cylinder drive component 325. The linkage drive assembly 324 is fixedly connected to the bottom of several steering components 322 to drive all steering components 322 to rotate synchronously. The output end of the cylinder drive component 325 is connected to the linkage drive assembly 324 through the second connection structure 6.

[0036] Specifically, the second connecting structure 6 is a hinged joint, ensuring that the linear motion of the cylinder drive component 325 can be converted into the oscillating motion of the linkage transmission assembly 324, thereby driving the steering component 322 to rotate around its own axis as the linkage transmission assembly 324 oscillates, realizing the steering and sorting of logistics items. The linkage transmission assembly 324 includes at least two parallel first connecting rods 3241 and second connecting rods 3242. Both the first connecting rods 3241 and second connecting rods 3242 are made of stainless steel round rods, and are respectively connected to the bottom rotating shaft of the steering component 322 by bolt fasteners. The length of the first connecting rod 3241 is shorter than the length of the second connecting rod 3242. This double-link structure can enhance the stability of the transmission, avoid the shaking or misalignment problems that occur when a single link is driven, and ensure that all conveying steering components rotate synchronously.

[0037] Preferably, the cylinder drive component 325 is a double-acting three-position cylinder (model optional SC63-100-S). The fixed end of the three-position cylinder is fixedly connected to the mounting bracket 321 through the cylinder mounting seat. The cylinder mounting seat and the mounting bracket 321 are detachably connected by bolts for easy maintenance. The three-position cylinder has three working positions: center, left, and right. It can drive the connecting plate (the connecting plate fixed at the end of the first connecting rod 3241 and the second connecting rod 3242) to drive the first connecting rod 3241 and the second connecting rod 3242 to achieve three position switching, corresponding to the three steering angles (0°, 30°, 60°) of the steering component 322, respectively realizing straight-line, left-hand sorting, and right-hand sorting of logistics items, adapting to different sorting needs, and the position switching is smooth and the operation is reliable.

[0038] In this embodiment, the working process of the swing wheel sorting device 3 is as follows: When the external control device 25 receives the sorting information of the logistics items transmitted by the RFID identification device 2, it controls the cylinder drive component 325 to move, which drives the linkage transmission component 324 to swing, thereby driving all conveying steering components to rotate synchronously to a preset angle; after the logistics items enter the swing wheel sorting device 3 through the conveyor line 1, they move along the steering direction of the steering component 322 under the rotation of the conveyor component 323 to achieve diversion, and the diverted logistics items enter the corresponding chute slowing device 4.

[0039] In some implementations, such as Figure 1 , 2 As shown in Figure 10, the chute slowing device 4 includes a chute body 41, a slowing roller mechanism 42, an active conveying mechanism 43, and a central roller mechanism 44, which are sequentially connected within the chute body 41 along the conveying direction of the logistics items. The chute body 41 is made of bent steel plate with a U-shaped cross-section. The input end of the chute body 41 is connected to the output end of the swing wheel sorting device 3, and the output end is connected to the loading telescopic conveyor. The chute body 41 is inclined downwards at an angle of 10°-15°. The slowing roller mechanism 42, the active conveying mechanism 43, and the central roller mechanism 44 all maintain the same inclination angle as the chute body 41, so that the falling speed of the logistics items is gradually reduced during the downward conveying process along the chute body 41, avoiding damage caused by excessive speed.

[0040] Specifically, the deceleration roller mechanism 42 includes a rubber-coated roller assembly 421 and a galvanized roller assembly 422. The rubber-coated roller assembly 421 is arranged near the input end of the deceleration roller mechanism 42, and the galvanized roller assembly 422 is arranged near the output end of the deceleration roller mechanism 42. The rubber-coated roller assembly 421 consists of several rollers with a rubber layer on their surface. The thickness of the rubber layer is 3-5mm, which has good cushioning and anti-slip effects and can initially slow down the falling speed of the material. The galvanized roller assembly 422 consists of several rollers with a galvanized surface. The galvanized layer can enhance the wear resistance of the rollers, extend their service life, and further slow down the speed of the material.

[0041] Among them, such as Figure 10 As shown, both the rubber-coated roller assembly 421 and the galvanized roller assembly 422 are arranged at an angle, together forming an arc-shaped path with a central angle of 15°-30°. This arc-shaped path can change the direction of movement of the material, further dissipating its kinetic energy and achieving a deceleration effect, while avoiding excessive impact caused by the material falling directly in a straight line. The rollers of both the rubber-coated roller assembly 421 and the galvanized roller assembly 422 are rotatably connected to the two side walls of the chute body 41 via bearings. The axis of the rollers forms an angle of 30°-45° with the inclination direction of the chute body 41, ensuring that the material can move smoothly along the arc-shaped path.

[0042] In some implementations, such as Figure 1 , 11 As shown, the active conveying mechanism 43 includes an active roller 431, a driven roller 432, and an adjusting roller 433. All three rollers are made of stainless steel and have a rubber coating to enhance friction with the conveyor belt 434. The active roller 431 is an electric roller electrically connected to an external control device, and its output speed can be adjusted according to the sorting flow rate. The driven roller 432 is connected to the output end of the deceleration roller mechanism 42 to ensure that the material can smoothly enter the active conveying mechanism 43 from the deceleration roller mechanism 42. The active roller 431, driven roller 432, and adjusting roller 433 are all rotatably connected to the chute body 41, and are connected via the conveyor belt 434. The adjusting roller 433 is used to adjust the tension of the conveyor belt 434 to prevent slippage.

[0043] Specifically, the working process of the active conveying mechanism 43 is as follows: When the logistics item enters the active conveying mechanism 43, the active roller 431 drives the driven roller 432 and the adjusting roller 433 to rotate synchronously through the conveyor belt 434, so that the movement direction of the conveyor belt 434 is consistent with the falling direction of the logistics item, but the speed is slightly lower than the falling speed of the logistics item, thereby further decelerating the logistics item. When the downstream loading process is slow and temporary stagnation is required, the active roller 431 can be controlled to stop rotating, thereby stopping the conveyor belt 434 and actively supporting the logistics item to prevent the goods from accumulating in the chute; after the downstream loading process resumes, the active roller 431 restarts and continues to convey the logistics item without the need for manual unblocking.

[0044] In some implementations, such as Figure 12As shown, the centering roller mechanism 44 includes two sets of unpowered rollers 441 arranged in a V-shape. The unpowered rollers 441 are made of stainless steel, with a support frame 442 at their bottom. Both ends of the unpowered rollers 441 are rotatably connected to the support frame 442 via bearings. The V-shaped openings of the two sets of unpowered rollers 441 are arranged opposite each other, with a V-angle of 60°-120°. When the material passes through the centering roller mechanism 44, under the guidance of the two sets of unpowered rollers 441, it automatically adjusts its position and is centered and transported to the output end of the chute body 41, preventing the material from shifting and detaching from the chute body 41.

[0045] In some implementations, such as Figure 1 , 13 As shown in Figure 14, the chute retarder 4 also includes a tail slide plate 45, which is made of wear-resistant steel plate. It is connected between the output end of the central roller mechanism 44 and the loading telescopic machine to realize the smooth transition of the logistics parts from the chute body 41 to the loading telescopic machine. An adjustment frame 451 is provided at one end of the tail slide plate 45 connected to the central roller mechanism 44. The adjustment frame 451 is hinged to the end of the tail slide plate 45. By adjusting the angle of the adjustment frame 451, the tilt angle of the tail slide plate 45 can be adjusted to adapt to loading telescopic machines of different heights. A buffer component is provided between the other end of the tail slide plate 45 and the loading telescopic machine to further buffer the impact force of the logistics parts and protect them.

[0046] Specifically, the buffer assembly includes an arc-shaped buffer plate 452 and a buffer roller 453. The arc-shaped buffer plate 452 is made of elastic steel plate, and its end away from the central roller mechanism 44 is bent upward to form an arc-shaped structure. The arc-shaped structure can disperse the impact force of the material and avoid hard contact. The buffer roller 453 is rotatably connected to the bottom of the arc-shaped buffer plate 452 through a fixed frame 454. The buffer roller 453 can reduce the friction between the material and the arc-shaped buffer plate 452, so that the material can slide smoothly into the loading telescopic conveyor.

[0047] In some implementations, such as Figure 1 , 3 As shown, side baffles 7 are provided on both sides of the chute slowing device 4. The side baffles 7 are made of steel plates and extend along the conveying direction of the logistics parts. The height of the side baffles 7 is higher than the top height of each mechanism inside the chute body 41 (generally 10-30cm higher) to prevent the logistics parts from falling from both sides of the chute body 41 during the conveying process, so as to ensure the safety and smoothness of the conveying.

[0048] Working principle of the invention: Logistics items are transported via conveyor line 1, which consists of belt conveyors. First, they enter the identification area of ​​RFID identification device 2. The upper RFID reader 22 and the lower RFID sensor 23 work simultaneously to read the RFID tag information on the logistics items and transmit the information to control device 25. Control device 25 parses the tag information to determine the sorting destination of the logistics items. Then, the logistics items continue to be transported to the swing wheel sorting device 3. Control device 25 controls the cylinder drive component 325 to actuate, causing the linkage transmission assembly 324 to swing, rotating the conveyor steering component to a preset angle, thereby diverting the logistics items to the corresponding chute for slow transport. Device 4; Next, after the logistics item enters the chute slowing device 4, it first passes through the slowing roller mechanism 42, where it is initially decelerated by the action of the rubber-coated roller group 421 and the galvanized roller group 422; then it enters the active conveyor mechanism 43, where it is further decelerated by the action of the conveyor belt 434. If there is a backlog of loading at the rear end, the active conveyor mechanism 43 stops moving and temporarily supports the logistics item; finally, after passing through the active conveyor mechanism 43, the logistics item enters the central roller mechanism 44, where it is centrally conveyed by the guidance of the unpowered roller 441; finally, after being buffered by the tail slide plate 45 and the buffer assembly, it smoothly slides into the loading telescopic conveyor, completing the entire sorting and conveying process.

[0049] In summary, this logistics sorting and conveying system significantly reduces the probability of tag misreading when logistics items are stacked by setting up RFID identification devices 2 at both the top and bottom positions, thereby reducing identification errors and improving sorting accuracy. The swing wheel sorting device 3 adopts a double-link synchronous transmission structure, which ensures stable transmission, clear sorting steering gears, and adaptability to various sorting needs. The chute slowing device 4, through multi-stage deceleration combined with active cargo retention adjustment, can not only avoid damage caused by high-speed descent of logistics items, but also adapt to the loading rhythm at the rear end, preventing the chute from accumulating logistics items. The overall structure is reasonably designed, operates stably and reliably, and effectively improves the work efficiency of logistics sorting and conveying.

[0050] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A logistics sorting and conveying system, comprising several conveyor lines spliced ​​together by belt conveyors, wherein each conveyor line is sequentially equipped with an RFID identification device, a swing wheel sorting device, and a chute deceleration device along the direction of logistics component transport; characterized in that, The RFID identification device includes a gantry, an upper RFID reader, and a lower RFID sensor. The gantry spans across the conveyor line and is fixed to both sides of the conveyor line. The upper RFID reader is installed on the top of the gantry, with its signal transmitting end facing the conveying surface of the conveyor line. The lower RFID sensor is installed at the bottom of the conveyor line, with its sensing end facing the lower surface of the conveyor line. A non-metallic partition is provided between the lower RFID sensor and the conveying surface of the conveyor line. The upper RFID reader and the lower RFID sensor work together to form an RFID identification area covering the conveyor line's transport path. The swing wheel sorting device includes a frame and multiple swing sorting modules installed in the frame. The swing sorting module includes a mounting frame, several conveying and steering components arranged at intervals along the length of the mounting frame, and a swing drive mechanism for driving the conveying and steering components to rotate synchronously. The conveying and steering components consist of a steering component and a conveying component. The steering component is rotatably assembled on the mounting frame through a first connecting structure, and the conveying component is movably embedded in the steering component. The chute slowing device includes a chute body, a slowing roller mechanism, an active conveying mechanism, and a central roller mechanism arranged sequentially within the chute body along the conveying direction of the material; the slowing roller mechanism, the active conveying mechanism, and the central roller mechanism are arranged at a downward inclination with the same inclination angle, so as to gradually reduce the falling speed of the material as it is conveyed downward along the chute body.

2. The logistics sorting and conveying system according to claim 1, characterized in that, The non-metallic partition is a plastic plate, which is fixed to the conveyor line, and the upper surface of the plastic plate is parallel to the lower surface of the conveyor line with a preset gap.

3. The logistics sorting and conveying system according to claim 1, characterized in that, The swing drive mechanism includes a linkage transmission assembly and a cylinder drive component. The linkage transmission assembly is fixedly connected to the bottom of several steering components. The output end of the cylinder drive component is connected to the linkage transmission assembly through a second connection structure to drive the steering components to rotate around their own axes as the linkage transmission assembly swings.

4. The logistics sorting and conveying system according to claim 3, characterized in that, The linkage drive assembly includes at least two parallel first connecting rods and second connecting rods. The first connecting rod and the second connecting rod are respectively connected to the steering component by bolt fasteners, and the length of the first connecting rod is shorter than the length of the second connecting rod.

5. The logistics sorting and conveying system according to claim 3, characterized in that, The cylinder drive is a double-acting three-position cylinder. The fixed end of the three-position cylinder is fixedly connected to the mounting bracket through the cylinder mounting seat. The three-position cylinder has three working positions: center, left, and right. It can drive the connecting plate to drive the first connecting rod and the second connecting rod to achieve the position switching of the three gears.

6. The logistics sorting and conveying system according to claim 1, characterized in that, The slow-speed roller mechanism includes a rubber-coated roller group and a galvanized roller group. The rubber-coated roller group is arranged near the input end of the slow-speed roller mechanism, and the galvanized roller group is arranged near the output end of the slow-speed roller mechanism. Both the rubber-coated roller group and the galvanized roller group are arranged at an angle, and together they form an arc-shaped path with a central angle of 15°-30°.

7. The logistics sorting and conveying system according to claim 1, characterized in that, The active conveying mechanism includes an active roller, a driven roller, and an adjusting roller. The driven roller is connected to the output end of the slow-speed roller mechanism. The active roller, driven roller, and adjusting roller are all rotatably connected to the chute body, and the three are connected by a conveyor belt.

8. The logistics sorting and conveying system according to claim 1, characterized in that, The central roller mechanism includes two sets of unpowered rollers arranged in a V-shape with their openings facing each other, and the unpowered rollers are rotatably connected to the slide body.

9. The logistics sorting and conveying system according to claim 1, characterized in that, The chute retarder also includes a tail slide plate, which is connected between the output end of the central roller mechanism and the loading telescopic machine. An adjustment frame is provided at one end of the tail slide plate connected to the central roller mechanism, and a buffer assembly is provided at the other end between the tail slide plate and the loading telescopic machine. The adjustment frame is hinged to the end of the tail slide plate. The buffer assembly includes an arc-shaped buffer plate and a buffer roller. The end of the arc-shaped buffer plate away from the central roller mechanism is bent upward to form an arc-shaped structure. The buffer roller is rotatably connected to the bottom of the arc-shaped buffer plate through a fixed frame.

10. The logistics sorting and conveying system according to claim 1, characterized in that, Both sides of the chute slowing device are provided with side baffles, which extend along the conveying direction of the logistics parts, and the height of the side baffles is higher than the top height of each mechanism inside the chute body.

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