A sorting trolley for a cross-belt sorting machine and a sorting method thereof

Abstract

The present invention relates to a sorting trolley of a cross-belt sorting machine, comprising a sorting trolley main body, the sorting trolley main body comprising a welded frame, a frame top plate, a top plate hinge shaft, a traction hook block, and a traction slot; the frame top plate is movably arranged on the welded frame through the top plate hinge shaft, the traction hook block and the traction slot are respectively fixedly arranged on the outer walls on both sides of the symmetrical welded frame, and are arranged at the same height and in the center; a material unloading mechanism for sorting unloading is fixedly arranged on the sorting trolley main body; a walking mechanism of the traction trolley is fixedly arranged on the sorting trolley main body. The present invention can effectively reduce the deformation of the unloading belt, improve the phenomenon that packages are easily thrown out and dropped during operation, improve the carrying capacity of the unloading machine, simplify the structure of the sorting trolley, reduce the manufacturing cost, reduce the occurrence of slipping of the trolley unloading roller belt, improve the rigid friction of the trolley when turning, reduce the maintenance frequency, and increase the service life.

Description

Technical Field

[0001] The present invention relates to the technical field of sorting machines, in particular to a sorting trolley of a cross-belt sorting machine and a sorting method thereof. Background Art

[0002] With the rapid development of e-commerce business, the proportion of e-commerce parcels has reached more than 90%, which has brought huge challenges to sorting work. Among them, small and medium-sized parcels have become the main type of e-commerce parcels. For this reason, in the development of cross-belt sorting equipment, the standard trolley disc size of 450*700mm has become the "golden size" widely used in the industry. This perfect parcel adaptability can not only meet the automated sorting needs of small and medium-sized e-commerce parcels, but also greatly improve the sorting efficiency. The development of cross-belt sorting equipment is inseparable from the development of the express delivery industry. This perfect match of parcel adaptability has promoted deeper cooperation between the two.

[0003] Today, many automated sorting equipment has restrictions on package weight and volume. However, these restrictions only limit sorting efficiency, because more inclusive equipment can handle a wider range of package types, thereby achieving higher sorting efficiency. The sorting efficiency of cross-belt equipment has reached a peak of 8,000 tickets / hour. At the same time, it can take into account various package types without the need to reserve a larger sorting structure in the design to cope with the needs of special-shaped or overweight pieces, so it will not be loaded and slow down. In contrast, cross-belt sorting equipment is more inclusive, has higher sorting efficiency, and lower missorting rate.

[0004] With the passage of time and the continuous advancement of technology, automated sorting equipment has matured and is increasingly flexibly applied to different small and medium-sized outlets. Compared with other sorting equipment, cross-belt sorting equipment can achieve higher efficiency in a limited space and double the efficiency through a multi-layer three-dimensional structure. The investment in this equipment is no longer limited to transfer centers, but is widely used in various industries such as express delivery, e-commerce, clothing, medicine, retail, and food. In addition, automated sorting equipment can also reduce personnel, sorting and maintenance costs, and provide more customized services for various industries.

[0005] Logistics companies have been committed to reducing the damage rate of goods, and the cross-belt sorting system is one of the important solutions. This system can scientifically integrate and divide the sorting process on the basis of comprehensive manual sorting, reduce the collision and impact of goods from the aspects of loading, scanning, conveying, pulling distance, and dropping grids, and achieve "gentle" sorting. This sorting method does not require too much human assistance, reduces the damage of goods caused by manual sorting, and optimizes sorting management. At the same time, the sorting action of the cross-belt sorting system is gentle, the impact on the goods is small, the sorting is accurate and reliable, and there will be no problems such as floating grids.

[0006] The cross-belt sorter is composed of dozens or even hundreds of belt conveyor carts that cross the main movement direction perpendicularly, and the sorting system is composed of package supply (automatic or manual), pull distance sorting, package positioning, information identification, sorting host, unloading (grid) and control system. It can efficiently sort various boxes, boxes, clothing packages, printed materials and other packages. It is the mainstream high-speed and efficient sorting equipment in the fields of e-commerce, express delivery, shoes and clothing. The intelligent high-speed cross-belt sorter based on the Internet of Things is not only an efficient and intelligent sorting system, but also a "smart unit" in the intelligent logistics system. Combined with the Tianji (PHM) system, it can provide users with various intelligent services, so that the cross-belt sorter and its system always maintain the "best state".

[0007] For example, the application number 201910206290.8 discloses a cross-belt sorting trolley, which adopts modular structural improvements, simplifies and optimizes the connection between the upper, middle and lower structures and the improvement of the frame trough structure, in order to achieve lightweight and modular design, increase the upper load limit and use efficiency, and reduce the workload of installation, commissioning and maintenance. The cross-belt sorting trolley includes an upper conveyor belt assembly, a middle trolley frame and a lower secondary plate; a number of mounting holes are opened at the bottom of the frame trough, and are installed with the secondary plate mounting profile plate by bolts; the secondary plate mounting profile plate has a T-shaped through-slot integrated structure, and a number of nut blocks for installation are arranged inside the trough in the horizontal and vertical directions; on the vertical side of the secondary plate mounting profile plate, the secondary plate and the secondary plate pressure plate are installed in a stacked manner by bolts.

[0008] However, most of the current sorting carts have large deformation of the unloading belts, and packages are easily thrown out or dropped during operation. The unloading machine has a low carrying capacity, the sorting cart has a complex structure, and the manufacturing cost is high. The unloading roller belt of the cart is prone to slipping, and the cart has rigid friction when turning. The maintenance is frequent, the service life is short, the maintenance is complex, and the maintenance cost is high. Summary of the invention

[0009] The technical problem to be solved by the present invention is to reduce the deformation of the unloading belt, improve the phenomenon of packages being easily thrown out and falling during operation, improve the carrying capacity of the unloading machine, streamline the structure of the sorting trolley, reduce the manufacturing cost, reduce the occurrence of slipping of the trolley unloading roller belt, improve the rigid friction of the trolley when turning, reduce the frequency of maintenance, increase the service life, streamline the structure, reduce the difficulty of maintenance, and reduce maintenance costs.

[0010] In order to solve the above technical problems, the present invention provides a sorting trolley of a cross-belt sorting machine, comprising a sorting trolley body, wherein the sorting trolley body comprises a welded frame, a frame top plate, a top plate hinge shaft, a traction hook block, and a traction slot; the frame top plate is movably arranged on the welded frame through the top plate hinge shaft, and the traction hook block and the traction slot are respectively fixedly arranged on the outer walls on both sides of the welded frame, and are arranged at the same height and in the middle; The main body of the sorting trolley is fixedly provided with a material unloading mechanism for sorting and unloading materials; A walking mechanism for traction of the trolley is fixedly arranged on the main body of the sorting trolley.

[0011] Preferably, the unloading mechanism of the unloading material comprises a left profile beam, a right profile beam, a driving shaft support block, a driven shaft support block, a roller core shaft, an active roller wheel, an auxiliary roller wheel, a pulley groove, a roller, a roller motor fixing seat, a roller motor, a driving pulley, a supporting profile frame, a fixed right angle, a belt support plate, and a belt; the unloading mechanism of the unloading material is fixedly arranged on the frame top plate, the left profile beam and the right profile beam are arranged in parallel on the frame top plate, the active shaft support block is provided with two, which are fixedly arranged on the same end of the left profile beam and the right profile beam, the driven shaft support block is provided with two, which are fixedly arranged on the other end of the left profile beam and the right profile beam, the roller core shaft is provided with two groups, one group is fixedly arranged between the two active shaft support blocks, and the other group is fixedly arranged between the driven shaft support blocks, the active roller wheel is movably arranged on the roller core shaft on the active shaft support block through a bearing, close to the inner side of the left profile beam, and the auxiliary roller wheel is provided There are three, the first one is arranged on the roller core shaft on the active shaft support block, close to the inner side of the right beam of the profile, and the other two are arranged on the roller core shaft on the driven shaft support block, close to the inner sides of the left beam and the right beam of the profile respectively; the roller is provided with two groups, which are respectively sleeved on the two groups of roller core shafts, the first group is fixedly arranged on the active roller wheel and the auxiliary roller wheel, and the other group is fixedly arranged on the two auxiliary roller wheels, the roller motor fixing seat is fixedly arranged on the inner side of the left beam of the profile, the roller motor is fixedly arranged on the roller motor fixing seat, the driving pulley is fixedly sleeved on the shaft end of the roller motor, the active roller wheel is provided with a pulley groove, and is connected to the driving pulley through a synchronous belt; the supporting profile frame is fixed by the fixed right angle and fixedly arranged between the left beam and the right beam of the profile, the belt support plate is fixedly arranged on the supporting profile frame, and the belt is movably sleeved on the two groups of rollers, Preferably, the material discharging mechanism further comprises a tensioning groove, a tensioning countersunk hole, a tensioning top screw and a fastening slot piece; a tensioning groove is provided on the driven shaft support block, and a tensioning threaded hole is provided on the side; the shaft end of the roller core shaft arranged on the driven shaft support block is movably arranged in the tensioning groove; two tensioning top screws are provided, which respectively pass through the tensioning countersunk holes on the two driven shaft support blocks, are fixed to the threaded holes provided on the shaft end of the roller core shaft by threads, and contact the side of the tensioning groove away from the tensioning countersunk hole; the fastening slot piece passes through the shaft end of the roller core shaft and is fixed to the driven shaft support block by screws; Preferably, the walking mechanism includes a floating buffer, a slider top plate, a sliding support frame, a slider mover, a sliding roller, a triangular positioning roller, and a linear motor stator rail; the floating buffer is provided with two groups, the two groups are symmetrical to the bottom of the welding frame, each group is provided with a plurality of rollers, which are arranged in a straight line along both sides of the welding frame, the slider top plate is fixedly arranged at the bottom of the floating buffer, the sliding support frame is fixedly arranged at the bottom of the slider top plate, the slider mover is fixedly arranged at the bottom of the slider top plate, in the middle position of the sliding support frame, a plurality of sliding rollers are provided, which are movably arranged on the inner wall of the sliding support frame through short shafts and bearings, and are symmetrically arranged on both sides, the outer cylindrical surface of the sliding roller contacts the upper surfaces on both sides of the linear motor stator rail, the triangular positioning rollers are movably arranged on the bottom surface of the sliding support frame through short shafts and bearings, and are provided with three of them, which are arranged in a triangle, two are arranged on one side of the linear motor stator rail, and the other is arranged on the other side of the linear motor stator rail, and both are in contact with the side of the linear motor stator rail; Preferably, the floating buffer includes a floating head top plate, a floating sleeve, an embedded floating ring, a floating mandrel, a flexible floating soft ring, a soft ring shoulder boss, a soft ring pressure plate, and a slider fixing plate; the floating sleeve is fixedly arranged on the floating head top plate, the embedded floating ring is fixedly arranged in the floating sleeve, the floating mandrel is movably arranged in the embedded floating ring, a soft ring shoulder boss is arranged on the floating mandrel, the flexible floating soft ring is sleeved on the floating mandrel, contacts the soft ring shoulder boss, and is pressed by the soft ring pressure plate sleeved on the top of the floating mandrel, the soft ring pressure plate is fixedly arranged on the floating mandrel by screws, and the slider fixing plate is fixedly arranged on the end of the floating mandrel away from the soft ring pressure plate; the slider top plate is fixedly arranged on the slider fixing plate; Preferably, the sorting trolley of the cross-belt sorting machine further comprises a sliding contact power supply mechanism, which comprises a power supply wire arm, a magnetic brush gripper, and a magnetic brush head; the power supply wire arm is fixedly arranged at the bottom of the welding frame, the magnetic brush gripper is fixedly arranged at one end of the power supply wire arm away from the welding frame, the magnetic brush head is fixedly arranged on the magnetic brush gripper, and the magnetic brush head is movably arranged in the outer sliding wire groove; Preferably, the sorting trolley of the cross-belt sorting machine also includes a lifting mechanism, which includes a lifting motor, a worm right-angle dual-output reducer, a camshaft seat, a camshaft, a lifting cam, a lifting seat, an articulated shaft hole, an articulated shaft, an avoidance groove, a corner seat, a semicircular gear surface, a lifting rod, a rack surface, and a positioning column; the lifting mechanism is fixedly arranged in the welded frame, the lifting motor is fixedly arranged on the inner bottom surface of the welded frame, the input end of the worm right-angle dual-output reducer is fixedly connected to the shaft end of the lifting motor, two camshaft seats are provided, which are fixedly arranged on the inner bottom surface of the welded frame, and two camshafts are provided, which are respectively movably arranged on the camshaft seat through bearings, and are respectively fixed to the two output ends of the worm right-angle dual-output reducer The lifting cam is fixedly arranged on the camshaft, the lifting seat is fixedly arranged on the camshaft seat, a hinge shaft hole is provided on the lifting seat, the hinge shaft is movably arranged in the hinge shaft hole through a bearing, the corner seat is fixedly arranged on the hinge shaft, an avoidance groove is provided on one side of the upper end of the lifting seat, so that the corner seat can rotate along the hinge shaft hole, and the frame top plate is fixedly arranged on the corner seat; the lifting rod is movably sleeved in the lifting seat and reciprocates up and down along the lifting rod, a semicircular gear surface is provided on the corner seat, a rack surface is provided on the upper end of the lifting rod, the semicircular gear surface is meshed with the rack surface for transmission, the bottom of the lifting rod contacts the lifting cam, and the positioning column is fixedly arranged on the lifting seat; Preferably, the sorting trolley of the cross-belt sorting machine further comprises a belt rolling mechanism, which comprises a conforming guide plate, a roller groove, and a roller pressing wheel; the conforming guide plate is fixedly arranged on the top plate of the frame, a plurality of groups of roller grooves are provided on the conforming guide plate, a roller pressing wheel is movably arranged in the roller groove, and the roller pressing wheel is tangent to the belt; Preferably, the sorting trolley of the cross-belt sorting machine further comprises a protective accordion cover; the protective accordion cover is fixedly arranged on the left beam of the profile to prevent dust from forming in the gap between the connecting parts when multiple groups of sorting trolleys of the cross-belt sorting machine are connected in series; A sorting method for a sorting trolley of a cross-belt sorter, comprising the following steps: S1, the magnetic brush head is movably arranged in the outer sliding wire groove, and the cable enters the welding frame through the power supply wire arm to provide power to the electrical appliances inside the trolley; S2, the slider mover is energized and moves linearly along the linear motor stator rail, thereby driving the trolley body to move linearly along the linear motor stator rail, the sliding roller supports the trolley body, and the triangular positioning roller limits the freedom of movement of the slider mover on both sides; S3, when the triangular positioning roller slightly changes relative to the stator rail of the linear motor, the flexible floating soft ring sleeved on the floating mandrel slightly displaces relative to the embedded floating ring, while the floating head top plate and the trolley body fixed on the floating head top plate are kept from being deformed; S4, the lifting motor drives the two camshafts to rotate through the worm right-angle dual-output reducer, thereby driving the lifting cam to rotate, the outer surface of the lifting cam contacts the lifting rod, thereby driving the lifting rod to reciprocate up and down in a straight line, the corner seat is provided with a semicircular gear surface, the upper end of the lifting rod is provided with a rack surface, the semicircular gear surface and the rack surface are meshed and transmitted, thereby driving the corner seat to rotate along the hinge shaft hole on the lifting seat, thereby driving the frame top plate to rotate slightly along the top plate hinge shaft; S5, the tensioning top wire rotates, driving the two roller core shafts arranged in the tensioning grooves on the driven shaft support block to move linearly along the tensioning grooves, thereby driving the roller on the driven shaft support block away from the roller on the driving shaft support block, thereby tightening the belt; S6, the drum motor drives the driving pulley to rotate, thereby driving the active drum wheel with the pulley groove to rotate through the synchronous belt, driving the drum to rotate, thereby driving the belt to rotate on the two drums to perform the unloading action; Compared with the prior art, the present invention has the following beneficial effects: 1. By setting the supporting profile frame and belt support plate on the unloading mechanism, on the one hand, the deformation of the unloading mechanism when carrying goods is reduced, the running stability is improved, and the carrying capacity of the unloading machine is improved; at the same time, the belt support plate is added to effectively improve the wear resistance of the unloading belt, which can withstand long-term friction and wear and extend the service life. The belt support plate has good self-lubricating properties, reduces friction resistance and reduces energy consumption.

[0012] 2. By setting the active roller wheel and roller motor, the built-in design makes the installation process simpler, improves the modular production, transportation and installation of the unloading mechanism, and reduces the installation time and manufacturing cost.

[0013] 3. By setting the fastening slot, the stability and durability of the equipment are enhanced. The simple mechanism can effectively prevent the belt from slipping due to loosening of the roller, ensuring a firm and reliable connection.

[0014] 4. By setting up a walking mechanism and adopting a linear motor, the walking speed is increased, the operating noise is reduced, and the operating accuracy of the equipment is improved.

[0015] 5. By setting a floating buffer, the rigid friction of the trolley when turning is reduced, the service life of the limiting wheel is increased, and at the same time, the friction noise of the trolley when turning is reduced, and the stability of equipment operation is improved.

[0016] 6. By setting up a sliding contact power supply mechanism, the use of equipment cables and tank chain follower parts is avoided, the mechanism is streamlined, and the service life of the sliding contact power supply mechanism is long. The service life of ordinary wires and cables is much shorter than that of the busbar, and the collector and conductor of the busbar itself also have a long service life. In terms of installation and maintenance, the sliding contact power supply mechanism has a simple structure and is easy to install. It does not require other insulating structures or compensation wires, saving installation materials and expenses. At the same time, the installation, disassembly, adjustment and maintenance of the busbar are also very convenient, which is suitable for installation needs in various complex environments.

[0017] 7. By setting up a lifting mechanism, the outer side can be automatically lifted slightly when turning, so that the trolley can be tilted slightly, which effectively increases the turning speed and avoids the phenomenon of objects being thrown out when turning.

[0018] 8. By setting up the belt roller mechanism, the smoothness of the belt operation is effectively improved, avoiding fluctuations and deviations during the operation of the belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings: Figure 1 It is the front view of the present invention; Figure 2 It is a left side view of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 4 for Figure 1 Schematic diagram of the structure of the cross section in the AA direction; Figure 5 for Figure 4 A partial enlarged schematic diagram of the middle B area; Figure 6 for Figure 3 A partial enlarged schematic diagram of the middle C area; Figure 7 for Figure 1 Schematic diagram of the structure of the cross section in the middle DD direction; Figure 8 for Figure 7 Schematic diagram of the structure of the cross section in the EE direction; Fig. 9 for Figure 8A partial enlarged schematic diagram of the middle F area; Fig.10 It is a schematic diagram of the three-dimensional structure of the belt support plate of the present invention; Fig.11 for Figure 7 A partial enlarged schematic diagram of the middle G area; Fig.12 It is a schematic diagram of the three-dimensional structure of the walking mechanism of the present invention; Fig.13 for Figure 7 A partial enlarged schematic diagram of the middle H region; Fig.14 for Figure 7 Schematic diagram of the structure of the cross section in the middle JJ direction; Fig.15 for Fig.14 A partial enlarged schematic diagram of the middle K region; Fig.16 It is a schematic diagram of the three-dimensional structure of the belt rolling mechanism of the present invention; In the figure: 1. main body of the sorting trolley; 101. welding frame; 102. top plate of the frame; 103. hinge shaft of the top plate; 104. traction hook block; 105. traction slot; 2. unloading mechanism; 201. left beam of profile; 202. right beam of profile; 203. driving shaft support block; 204. driven shaft support block; 205. roller mandrel; 206. driving roller wheel; 207. auxiliary roller wheel; 208. pulley groove; 209. roller; 210. roller Motor fixing seat; 211, drum motor; 212, driving pulley; 213, supporting profile frame; 214, fixing right angle; 215, belt support plate; 216, belt; 217, tensioning groove; 218, tensioning countersunk hole; 219, tensioning top screw; 220, fastening slot plate; 3, walking mechanism; 301, floating buffer; 302, floating head top plate; 303, floating sleeve; 304, embedded floating ring; 305, floating mandrel; 306, Flexible floating soft ring; 307, soft ring shoulder boss; 308, soft ring pressure plate; 309, slider fixing plate; 310, slider top plate; 311, sliding support frame; 312, slider mover; 313, sliding roller; 314, triangular positioning roller; 315, linear motor stator rail; 4, sliding contact power supply mechanism; 401, power supply over-line arm; 402, magnetic brush gripper; 403, magnetic brush head; 5, lifting mechanism; 501, lifting motor; 502, Worm right-angle dual-output reducer; 503, camshaft seat; 504, camshaft; 505, lifting cam; 506, lifting seat; 507, hinged shaft hole; 508, hinged shaft; 509, avoidance groove; 510, corner seat; 511, semicircular gear surface; 512, lifting rod; 513, rack surface; 514, positioning column; 6, belt rolling mechanism; 601, profile guide plate; 602, roller groove; 603, rolling wheel; 7, protective accordion cover; DETAILED DESCRIPTION Example

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 16 A sorting trolley of a cross-belt sorting machine comprises a sorting trolley body 1, wherein the sorting trolley body 1 comprises a welded frame 101, a frame top plate 102, a top plate hinge shaft 103, a traction hook block 104, and a traction card slot 105; the frame top plate 102 is movably arranged on the welded frame 101 through the top plate hinge shaft 103, and the traction hook block 104 and the traction card slot 105 are respectively fixedly arranged on the outer walls of the welded frame 101 on both sides symmetrically, and are arranged at the same height and in the middle; The sorting trolley body 1 is fixedly provided with a material unloading mechanism 2 for unloading materials; The main body 1 of the sorting trolley is fixedly provided with a traveling mechanism 3 for pulling the trolley.

[0022] In some embodiments, see Figure 3-6 , Figure 9-10The unloading mechanism 2 of the figure comprises a left profile beam 201, a right profile beam 202, a driving shaft support block 203, a driven shaft support block 204, a roller core shaft 205, a driving roller wheel 206, an auxiliary roller wheel 207, a pulley groove 208, a roller 209, a roller motor fixing seat 210, a roller motor 211, a driving pulley 212, a supporting profile frame 213, a fixed right angle 214, a belt support plate 215, and a belt 216; the unloading mechanism 2 of the unloading is fixedly arranged on the frame top plate 102, the left profile beam 201 and the right profile beam 202 are arranged in parallel on the frame top plate 102, and two driving shaft support blocks 203 are provided, which are fixedly arranged on the same end of the left profile beam 201 and the right profile beam 202 , the driven shaft support blocks 204 are provided with two, fixedly arranged at the other end of the left beam 201 and the right beam 202 of the profile, the roller core shaft 205 is provided with two groups, one group is fixedly arranged between the two active shaft support blocks 203, and the other group is fixedly arranged between the driven shaft support blocks 204, the active roller wheel 206 is movably arranged on the roller core shaft 205 on the active shaft support block 203 through a bearing, close to the inner side of the left beam 201 of the profile, and the auxiliary roller wheels 207 are provided with three, the first one is arranged on the roller core shaft 205 on the active shaft support block 203, close to the inner side of the right beam 202 of the profile, and the other two are arranged on the roller core shaft 205 on the driven shaft support block 204 5, respectively close to the inner side of the left beam 201 and the right beam 202 of the profile; the roller 209 is provided with two groups respectively sleeved on the two groups of the roller core shafts 205, the first group is fixedly provided on the active roller wheel 206 and the auxiliary roller wheel 207, and the other group is fixedly provided on the two auxiliary roller wheels 207, the roller motor fixing seat 210 is fixedly provided on the inner side of the left beam 201 of the profile, the roller motor 211 is fixedly provided on the roller motor fixing seat 210, the driving pulley 212 is fixedly sleeved on the shaft end of the roller motor 211, the active roller wheel 206 is provided with a pulley groove 208, and is connected to the driving pulley 212 through a synchronous belt; the supporting profile frame 213 is connected to the supporting profile frame 213 through the fixed right angle 2 14 is fixed and fixedly arranged between the left beam 201 and the right beam 202 of the profile, the belt support plate 215 is fixedly arranged on the supporting profile frame 213, and the belt 216 is movably sleeved on the two groups of the rollers 209. When in use, the roller motor 211 drives the driving pulley 212 to rotate, thereby driving the active roller wheel 206 with the pulley groove 208 to rotate through the synchronous belt, driving the roller 209 to rotate, thereby driving the belt 216 to rotate on the two rollers 209 to perform the unloading action; by arranging the supporting profile frame and the belt support plate on the unloading mechanism, on the one hand, the deformation of the unloading mechanism when carrying goods is reduced, the running stability is improved, and the carrying capacity of the unloading machine is improved;At the same time, the belt support plate is added to effectively improve the wear resistance of the unloading belt, which can withstand long-term friction and wear and extend the service life. The belt support plate has good self-lubricating properties, reduces friction resistance and reduces energy consumption. By setting the active roller wheel and roller motor, the built-in design makes the installation process simpler, improves the modular production, transportation and installation of the unloading mechanism, and reduces the installation time and manufacturing cost. ;

[0023] In some embodiments, see Figure 6 The material unloading mechanism 2 also includes a tensioning groove 217, a tensioning countersunk hole 218, a tensioning top screw 219, and a fastening slot plate 220; the driven shaft support block 204 is provided with a tensioning groove 217, and a tensioning threaded hole 218 is provided on the side, and the shaft end of the roller core shaft 205 arranged on the driven shaft support block 204 is movably arranged in the tensioning groove 217, and the tensioning top screw 219 is provided with two, which pass through the tensioning countersunk holes 218 on the two driven shaft support blocks 204, and are fixed by threads to the threaded holes opened on the shaft end of the roller core shaft 205, and contact the tensioning groove 217 away from the tensioning countersunk hole 218 on the side; the fastening slot plate 220 passes through the axial end of the roller core shaft 205 and is fixed on the driven shaft support block 204 by screws; when in use, the tensioning top screw 219 rotates, driving the two roller core shafts 205 in the tensioning grooves 217 set on the driven shaft support block 204 to move linearly along the tensioning grooves 217, thereby driving the roller 209 on the driven shaft support block 204 away from the roller 209 on the driving shaft support block 203, thereby tightening the belt 216; by setting a fastening slot plate, the stability and durability of the equipment are enhanced, and the simple mechanism can well prevent the roller from loosening and causing the belt to slip, thereby ensuring a firm and reliable connection.

[0024] In some embodiments, see Figure 11-12The walking mechanism 3 includes a floating buffer 301, a slider top plate 310, a sliding support frame 311, a slider mover 312, a sliding roller 313, a triangular positioning roller 314, and a linear motor stator rail 315; the floating buffer 301 is provided with two groups, the two groups are symmetrical to the bottom of the welding frame 101, each group is provided with a plurality of, and they are arranged in a straight line along both sides of the welding frame 101, the slider top plate 310 is fixedly set at the bottom of the floating buffer 301, the sliding support frame 311 is fixedly set at the bottom of the slider top plate 310, the slider mover 312 is fixedly set at the bottom of the slider top plate 310, and the middle position of the sliding support frame 311, the sliding roller 313 is provided with a plurality of, and is movably set on the inner wall of the sliding support frame 311 through a short shaft and a bearing, and is symmetrically arranged on both sides, and the outer circumferential surface of the sliding roller 313 is aligned with the linear motor stator rail 315. The upper surfaces of both sides of the sub-rail 315 are in contact, and the triangular positioning rollers 314 are movably arranged on the bottom surface of the sliding support frame 311 through short shafts and bearings. There are three triangular positioning rollers 314 arranged in a triangle shape, two are arranged on one side of the linear motor stator rail 315, and the other is arranged on the other side of the linear motor stator rail 315, and both are in contact with the side of the linear motor stator rail 315; when in use, the slider mover 312 is energized and moves linearly along the linear motor stator rail 315 on the linear motor stator rail 315, thereby driving the trolley body 1 to move linearly along the linear motor stator rail 315, the sliding rollers 313 support the trolley body 1, and the triangular positioning rollers 314 limit the freedom of movement of the slider mover 312 on both sides; by setting a walking mechanism and adopting a linear motor, the walking speed is improved, the operating noise is reduced, and the equipment operation accuracy is improved.

[0025] In some embodiments, see Fig.11The floating buffer 301 includes a floating head top plate 302, a floating sleeve 303, an embedded floating ring 304, a floating core shaft 305, a flexible floating soft ring 306, a soft ring shoulder boss 307, a soft ring pressure plate 308, and a slider fixing plate 309; the floating sleeve 303 is fixedly arranged on the floating head top plate 302, the embedded floating ring 304 is fixedly arranged in the floating sleeve 303, the floating core shaft 305 is movably arranged in the embedded floating ring 304, a soft ring shoulder boss 307 is arranged on the floating core shaft 305, the flexible floating soft ring 306 is sleeved on the floating core shaft 305, contacts the soft ring shoulder boss 307, and is pressed by the soft ring pressure plate 308 sleeved on the top of the floating core shaft 305, and the soft ring pressure plate 308 is fixed by screws On the floating core shaft 305, the slider fixing plate 309 is fixedly arranged at one end of the floating core shaft 305 away from the soft ring pressure plate 308; the slider top plate 310 is fixedly arranged on the slider fixing plate 309; when in use, when the triangular positioning roller 314 undergoes a slight change relative to the linear motor stator rail 315, the flexible floating soft ring 306 sleeved on the floating core shaft 305 undergoes a slight displacement relative to the embedded floating ring 304, while keeping the floating head top plate 302 and the trolley body 1 fixedly arranged on the floating head top plate 302 from being deformed; by setting a floating buffer, the rigid friction of the trolley when turning is reduced, the service life of the limiting wheel is increased, and at the same time, the friction noise of the trolley when turning is reduced, and the stability of the equipment operation is improved.

[0026] In some embodiments, see Figure 8The sorting trolley of the cross-belt sorting machine also includes a sliding contact power supply mechanism 4, which includes a power supply wire arm 401, a magnetic brush gripper 402, and a magnetic brush head 403; the power supply wire arm 401 is fixedly arranged at the bottom of the welding frame 101, the magnetic brush gripper 402 is fixedly arranged at one end of the power supply wire arm 401 away from the welding frame 101, the magnetic brush head 403 is fixedly arranged on the magnetic brush gripper 402, and the magnetic brush head 403 is movably arranged on the outside. In the cable trough; when in use, the magnetic brush head 403 is movably arranged in the cable trough on the outside, and the cable enters the welding frame 101 through the power supply line arm 401 to provide power to the electrical appliances inside the trolley; by setting up a sliding contact power supply mechanism, the use of equipment cables and follower components of tank chains is avoided, the mechanism is streamlined, and the service life of the sliding contact power supply mechanism is long. The service life of ordinary wires and cables is much shorter than that of the busbar, and the collector and conductor of the busbar itself also have a long service life. In terms of installation and maintenance, the sliding contact power supply mechanism has a simple structure and is easy to install. It does not require other insulating structures or compensation lines, saving installation materials and expenses. At the same time, the installation, disassembly, adjustment, and maintenance of the busbar are also very convenient, which is suitable for installation requirements in various complex environments.

[0027] In some embodiments, see Figure 13-15The sorting trolley of the cross-belt sorting machine also includes a lifting mechanism 5, which includes a lifting motor 501, a worm right-angle dual-output reducer 502, a camshaft seat 503, a camshaft 504, a lifting cam 505, a lifting seat 506, a hinge shaft hole 507, a hinge shaft 508, an avoidance groove 509, a corner seat 510, a semicircular gear surface 511, a lifting rod 512, a rack surface 513, and a positioning column 514; the lifting mechanism 5 is fixedly arranged in the welding frame 101, the lifting motor 501 is fixedly arranged on the inner bottom surface of the welding frame 101, the input end of the worm right-angle dual-output reducer 502 is fixedly connected to the shaft end of the lifting motor 501, and the camshaft seat 503 is provided with Two, fixedly arranged on the inner bottom surface of the welded frame 101, the camshaft 504 is provided with two, which are movably arranged on the camshaft seat 503 through bearings, and are respectively fixedly connected to the two output ends of the worm right-angle dual-output reducer 502, the lifting cam 505 is fixedly arranged on the camshaft 504, the lifting seat 506 is fixedly arranged on the camshaft seat 503, and a hinge shaft hole 507 is provided on the lifting seat 506, and the hinge shaft 508 is movably arranged in the hinge shaft hole 507 through a bearing, and the corner seat 510 is fixedly arranged on the hinge shaft 508, and a side of the upper end of the lifting seat 506 is provided with an avoidance groove 509, so that the corner seat 510 can be rotated along the The hinge shaft hole 507 rotates, and the frame top plate 102 is fixedly set on the corner seat 510; the lifting rod 512 is movably sleeved in the lifting seat 506, and reciprocates up and down along the lifting rod 512; a semicircular gear surface 511 is provided on the corner seat 510, and a rack surface 513 is provided on the upper end of the lifting rod 512, and the semicircular gear surface 511 is meshed with the rack surface 513 for transmission, and the bottom of the lifting rod 512 contacts the lifting cam 505, and the positioning column 514 is fixedly set on the lifting seat 506; when in use, the lifting motor 501 drives the two camshafts 504 to rotate through the worm right-angle dual-output reducer 502, thereby driving the lifting cam The wheel 505 rotates, and the outer surface of the lifting cam 505 contacts the lifting rod 512, thereby driving the lifting rod 512 to reciprocate up and down in a straight line. A semicircular gear surface 511 is provided on the corner seat 510, and a rack surface 513 is provided on the upper end of the lifting rod 512. The semicircular gear surface 511 is meshed with the rack surface 513 for transmission, thereby driving the corner seat 510 to rotate along the hinge shaft hole 507 on the lifting seat 506, thereby driving the frame top plate 102 to rotate slightly along the top plate hinge shaft 103; by setting up a lifting mechanism, the outer side can be automatically lifted slightly when turning, so that the trolley can be tilted slightly, which effectively improves the turning speed and avoids the phenomenon of objects being thrown out when turning.

[0028] In some embodiments, see Fig.16 The sorting trolley of the cross-belt sorting machine also includes a belt rolling mechanism 6, which includes a conformal guide plate 601, a roller groove 602, and a roller wheel 603; the conformal guide plate 601 is fixedly arranged on the frame top plate 102, and a plurality of groups of roller grooves 602 are provided on the conformal guide plate 601, and a roller wheel 603 is movably arranged in the roller groove 602, and the roller wheel 603 is tangent to the belt 216; by setting the belt rolling mechanism, the stability of the belt operation is effectively improved, and fluctuation and deviation of the belt during operation are avoided.

[0029] In some embodiments, see Figure 3 The sorting trolley of the cross-belt sorting machine further comprises a protective accordion cover 7; the protective accordion cover 7 is fixedly arranged on the left beam 201 of the profile, so as to prevent dust from forming in the gap of the connection part when multiple groups of sorting trolleys of the cross-belt sorting machine are connected in series; A sorting method for a sorting trolley of a cross-belt sorter, comprising the following steps: S1, the magnetic brush head 403 is movably arranged in the outer cable groove, and the cable enters the welding frame 101 through the power supply wire arm 401 to provide power to the electrical appliances inside the trolley; S2, the slider mover 312 is powered on, and moves linearly along the linear motor stator rail 315, thereby driving the trolley body 1 to move linearly along the linear motor stator rail 315, the sliding roller 313 supports the trolley body 1, and the triangular positioning roller 314 limits the freedom of movement of the slider mover 312 on both sides; S3. When the triangular positioning roller 314 slightly changes relative to the linear motor stator rail 315, the flexible floating soft ring 306 sleeved on the floating mandrel 305 slightly displaces relative to the embedded floating ring 304, while the floating head top plate 302 and the trolley body 1 fixedly mounted on the floating head top plate 302 are kept from being deformed; S4, the lifting motor 501 drives the two camshafts 504 to rotate through the worm right-angle dual-output reducer 502, thereby driving the lifting cam 505 to rotate, the outer surface of the lifting cam 505 contacts the lifting rod 512, thereby driving the lifting rod 512 to reciprocate up and down in a straight line, the corner seat 510 is provided with a semicircular gear surface 511, and the upper end of the lifting rod 512 is provided with a rack surface 513, the semicircular gear surface 511 and the rack surface 513 are meshed and transmitted, thereby driving the corner seat 510 to rotate along the hinge shaft hole 507 on the lifting seat 506, thereby driving the frame top plate 102 to rotate slightly along the top plate hinge shaft 103; S5, the tensioning top screw 219 rotates, driving the two roller core shafts 205 disposed in the tensioning grooves 217 on the driven shaft support block 204 to move linearly along the tensioning grooves 217, thereby driving the roller 209 on the driven shaft support block 204 away from the roller 209 on the driving shaft support block 203, thereby tightening the belt 216; S6, the roller motor 211 drives the driving pulley 212 to rotate, thereby driving the active roller wheel 206 with the pulley groove 208 to rotate through the synchronous belt, driving the roller 209 to rotate, thereby driving the belt 216 to rotate on the two rollers 209 to perform the unloading action; Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A sorting trolley for a cross-belt sorter, characterized by: The sorting trolley body (1) comprises a welded frame (101), a frame top plate (102), a top plate hinge shaft (103), a traction hook block (104), and a traction slot (105); the frame top plate (102) is movably arranged on the welded frame (101) via the top plate hinge shaft (103); the traction hook block (104) and the traction slot (105) are respectively fixedly arranged on the outer walls of two symmetrical sides of the welded frame (101) and are arranged at the same height and in the middle; The main body (1) of the sorting trolley is fixedly provided with a material discharge mechanism (2) for sorting and discharging materials; A walking mechanism (3) for pulling the trolley is fixedly arranged on the main body (1) of the sorting trolley.

2. A sorting trolley for a cross belt sorting machine according to claim 1, characterized in that: The unloading mechanism (2) comprises a left profile beam (201), a right profile beam (202), a driving shaft support block (203), a driven shaft support block (204), a roller core shaft (205), a driving roller wheel (206), an auxiliary roller wheel (207), a pulley groove (208), a roller (209), a roller motor fixing seat (210), a roller motor (211), a driving pulley (212), a supporting profile frame (213), a fixed right angle (214), a belt support plate (215), and a belt (216); the unloading mechanism (2) is fixedly arranged on the frame top plate (102); the left profile beam (201) and the right profile beam (202) are arranged parallel to the frame top plate (102); On the frame top plate (102), two driving shaft support blocks (203) are provided and fixedly arranged at the same end of the left profile beam (201) and the right profile beam (202); two driven shaft support blocks (204) are provided and fixedly arranged at the other end of the left profile beam (201) and the right profile beam (202); two groups of roller core shafts (205) are provided, one group is fixedly arranged between the two driving shaft support blocks (203), and the other group is fixedly arranged between the driven shaft support blocks (204); the driving roller wheel (206) is movably arranged on the roller core shaft (205) on the driving shaft support block (203) through a bearing, close to the inner side of the left profile beam (201); The auxiliary roller wheels (207) are provided with three of them, the first of which is provided on the roller core shaft (205) on the driving shaft support block (203) and is close to the inner side of the right beam (202) of the profile, and the other two are provided on the roller core shaft (205) on the driven shaft support block (204) and are close to the inner sides of the left beam (201) and the right beam (202) of the profile respectively; the roller (209) is provided with two groups of roller core shafts (205) respectively sleeved on two groups of roller core shafts (205), the first group is fixedly provided on the driving roller wheel (206) and the auxiliary roller wheel (207), and the other group is fixedly provided on the two auxiliary roller wheels (207); the roller motor fixing seat (210) is fixedly provided The roller motor (211) is fixedly mounted on the roller motor fixing seat (210), the driving pulley (212) is fixedly sleeved on the shaft end of the roller motor (211), and the driving roller wheel (206) is provided with a pulley groove (208) and is connected to the driving pulley (212) via a synchronous belt; the supporting profile frame (213) is fixed via the fixed right angle (214) and is fixedly mounted between the left profile beam (201) and the right profile beam (202); the belt support plate (215) is fixedly mounted on the supporting profile frame (213), and the belt (216) is movably sleeved on the two groups of rollers (209).

3. A sorting trolley for a cross belt sorting machine according to claim 2, characterized in that: The material unloading mechanism (2) further comprises a tensioning groove (217), a tensioning countersunk hole (218), a tensioning top screw (219), and a fastening slot plate (220); the driven shaft support block (204) is provided with a tensioning groove (217), and a tensioning threaded hole (218) is provided on the side thereof; the shaft end of the roller core shaft (205) arranged on the driven shaft support block (204) is movably arranged in the tensioning groove (217), and the tensioning top screw (219) is provided in the tensioning groove (220). 19) are provided with two tightening countersunk holes (218) on the two driven shaft support blocks (204), respectively passing through the threaded holes opened on the shaft ends of the roller core shaft (205) through threaded fixation, and contacting the tightening groove (217) on the side away from the tightening countersunk holes (218); the fastening slot sheet (220) passes through the shaft ends of the roller core shaft (205) and is fixed on the driven shaft support block (204) through screws.

4. A sorting trolley for a cross belt sorting machine according to claim 3, characterized in that: The walking mechanism (3) comprises a floating buffer (301), a slider top plate (310), a sliding support frame (311), a slider mover (312), a sliding roller (313), a triangular positioning roller (314), and a linear motor stator rail (315); the floating buffer (301) is provided with two groups, the two groups are symmetrical to the bottom of the welding frame (101), each group is provided with a plurality of sliders, and the sliders are arranged in a straight line along both sides of the welding frame (101); the slider top plate (310) is fixedly arranged at the bottom of the floating buffer (301); the sliding support frame (311) is fixedly arranged at the bottom of the slider top plate (310); and the slider mover (312) is fixedly arranged at the bottom of the slider. At the bottom of the top plate (310), in the middle of the sliding support frame (311), a plurality of sliding rollers (313) are provided, which are movably arranged on the inner wall of the sliding support frame (311) via short shafts and bearings, and are symmetrically arranged on both sides. The outer cylindrical surfaces of the sliding rollers (313) are in contact with the upper surfaces of both sides of the linear motor stator rail (315). The triangular positioning rollers (314) are movably arranged on the bottom surface of the sliding support frame (311) via short shafts and bearings. There are three triangular positioning rollers (314) arranged in a triangular shape, two of which are arranged on one side of the linear motor stator rail (315), and the other is arranged on the other side of the linear motor stator rail (315), and both are in contact with the side surfaces of the linear motor stator rail (315).

5. A sorting trolley for a cross belt sorting machine according to claim 4, characterized in that: The floating buffer (301) comprises a floating head plate (302), a floating sleeve (303), an embedded floating ring (304), a floating mandrel (305), a flexible floating soft ring (306), a soft ring shoulder boss (307), a soft ring pressure plate (308), and a slider fixing plate (309); the floating sleeve (303) is fixedly arranged on the floating head plate (302), the embedded floating ring (304) is fixedly arranged in the floating sleeve (303), the floating mandrel (305) is movably arranged in the embedded floating ring (304), and the floating mandrel (305) A soft ring shoulder boss (307) is arranged on the floating core shaft (305), the flexible floating soft ring (306) is sleeved on the floating core shaft (305), contacts the soft ring shoulder boss (307), and is pressed by the soft ring pressure plate (308) sleeved on the top of the floating core shaft (305), the soft ring pressure plate (308) is fixed on the floating core shaft (305) by screws, the slider fixing plate (309) is fixedly arranged on the end of the floating core shaft (305) away from the soft ring pressure plate (308); the slider top plate (310) is fixedly arranged on the slider fixing plate (309).

6. A sorting trolley for a cross belt sorter according to claim 5, characterized in that: The sorting trolley of the cross-belt sorting machine further comprises a sliding contact power supply mechanism (4), the sliding contact power supply mechanism (4) comprising a power supply wire arm (401), a magnetic brush gripper (402), and a magnetic brush head (403); the power supply wire arm (401) is fixedly arranged at the bottom of the welding frame (101), the magnetic brush gripper (402) is fixedly arranged at one end of the power supply wire arm (401) away from the welding frame (101), the magnetic brush head (403) is fixedly arranged on the magnetic brush gripper (402), and the magnetic brush head (403) is movably arranged in the outer sliding wire groove.

7. A sorting trolley for a cross belt sorting machine according to claim 6, characterized in that: The sorting trolley of the cross-belt sorting machine further comprises a lifting mechanism (5), wherein the lifting mechanism (5) comprises a lifting motor (501), a worm right-angle dual-output reducer (502), a camshaft seat (503), a camshaft (504), a lifting cam (505), a lifting seat (506), an articulated shaft hole (507), an articulated shaft (508), an avoidance groove (509), a corner seat (510), a semicircular gear surface (511), a lifting rod (512), a rack surface (513), and a positioning column (514); the lifting mechanism (5) is fixedly arranged on the welded frame ( 101), the lifting motor (501) is fixedly arranged on the inner bottom surface of the welding frame (101), the input end of the worm right-angle dual-output reducer (502) is fixedly connected to the shaft end of the lifting motor (501), two camshaft seats (503) are provided, which are fixedly arranged on the inner bottom surface of the welding frame (101), two camshafts (504) are provided, which are respectively movably arranged on the camshaft seats (503) through bearings, and are respectively fixedly connected to the two output ends of the worm right-angle dual-output reducer (502), and the lifting cam ( The camshaft (504) is fixedly mounted on the camshaft (505); the lifting seat (506) is fixedly mounted on the camshaft seat (503); a hinge shaft hole (507) is provided on the lifting seat (506); the hinge shaft (508) is movably arranged in the hinge shaft hole (507) through a bearing; the corner seat (510) is fixedly mounted on the hinge shaft (508); a avoidance groove (509) is provided on one side of the upper end of the lifting seat (506) so that the corner seat (510) can rotate along the hinge shaft hole (507); the frame top plate (102 ) is fixedly arranged on the corner seat (510); the lifting rod (512) is movably sleeved in the lifting seat (506) and reciprocates linearly up and down along the lifting rod (512); a semicircular gear surface (511) is arranged on the corner seat (510), and a rack surface (513) is arranged on the upper end of the lifting rod (512); the semicircular gear surface (511) and the rack surface (513) are meshed for transmission; the bottom of the lifting rod (512) contacts the lifting cam (505), and the positioning column (514) is fixedly arranged on the lifting seat (506).

8. A sorting trolley for a cross belt sorter according to claim 7, characterized in that: The sorting trolley of the cross-belt sorting machine further comprises a belt rolling mechanism (6), wherein the belt rolling mechanism (6) comprises a conforming guide plate (601), a roller groove (602), and a roller pressing wheel (603); the conforming guide plate (601) is fixedly arranged on the frame top plate (102), a plurality of groups of roller grooves (602) are provided on the conforming guide plate (601), a roller pressing wheel (603) is movably arranged in the roller groove (602), and the roller pressing wheel (603) is tangent to the belt (216).

9. A sorting trolley for a cross belt sorter according to claim 8, characterized in that: The sorting trolley of the cross-belt sorting machine further comprises a protective accordion cover (7); the protective accordion cover (7) is fixedly arranged on the left beam (201) of the profile, so as to prevent dust from forming a gap in the connection part when a plurality of groups of sorting trolleys of the cross-belt sorting machine are connected in series.

10. The sorting method of a sorting trolley of a cross belt sorter according to claim 9, characterized in that: The steps include: S1, the magnetic brush head (403) is movably arranged in the outer cable trough, and the cable enters the welding frame (101) through the power supply wire arm (401) to provide power to the electrical appliances inside the trolley; S2, the slider mover (312) is energized and moves linearly along the linear motor stator rail (315), thereby driving the trolley body (1) to move linearly along the linear motor stator rail (315), the sliding roller (313) supports the trolley body (1), and the triangular positioning roller (314) limits the freedom of movement of the slider mover (312) on both sides; S3, when the triangular positioning roller (314) undergoes a slight change relative to the linear motor stator rail (315), the flexible floating soft ring (306) sleeved on the floating core shaft (305) undergoes a slight displacement relative to the embedded floating ring (304), while the floating head top plate (302) and the trolley body (1) fixedly mounted on the floating head top plate (302) are kept from being deformed; S4, the lifting motor (501) drives the two camshafts (504) to rotate through the worm right-angle dual-output reducer (502), thereby driving the lifting cam (505) to rotate, the outer surface of the lifting cam (505) contacts the lifting rod (512), thereby driving the lifting rod (512) to reciprocate up and down in a straight line, the corner seat (510) is provided with a semicircular gear surface (511), the upper end of the lifting rod (512) is provided with a rack surface (513), the semicircular gear surface (511) and the rack surface (513) are meshed and transmitted, thereby driving the corner seat (510) to rotate along the hinge shaft hole (507) on the lifting seat (506), thereby driving the frame top plate (102) to rotate slightly along the top plate hinge shaft (103); S5, the tensioning top wire (219) rotates, driving the two roller core shafts (205) disposed in the tensioning grooves (217) on the driven shaft support block (204) to move linearly along the tensioning grooves (217), thereby driving the roller (209) on the driven shaft support block (204) away from the roller (209) on the driving shaft support block (203), thereby tightening the belt (216); S6, the roller motor (211) drives the driving pulley (212) to rotate, thereby driving the active roller wheel (206) provided with the pulley groove (208) to rotate through the synchronous belt, driving the roller (209) to rotate, thereby driving the belt (216) to rotate on the two rollers (209), and performing the unloading action.

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