A cross-belt sorting flow system

Abstract

The present invention relates to the technical field of logistics sorting, and specifically to a cross-belt sorting flow system, including a cross-belt sorting machine and a sorting outlet. The cross-belt sorting machine is provided with a rotating chain and a guide rail driven by a motor, the guide rails are connected end to end to form a closed state, and friction plates driven by a cylinder are also provided on both sides of the guide rails. The rotating chain is located in the middle of the guide rails, and multiple sorting outlets are provided on both sides of the guide rails. The present invention arranges a driving component and a transmission component on the sorting trolley, and the transmission component makes the amplitude of the rack movement correspond to the weight of the package through Hooke's law, and controls the diameter of the second pulley through the displacement of the rack, so that the transmission ratio of the driving component is adjusted according to the weight of the package, so that the angle and speed of packages of different weights entering the sorting outlet are constant, thereby ensuring the sorting accuracy when the sorting machine sorts the packages.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics sorting, and in particular to a cross-belt sorting flow system. Background Art

[0002] The cross-belt sorting system is a highly efficient automated logistics sorting equipment, which is widely used in e-commerce warehouses, express delivery centers, retail distribution and other industries. It is mainly used to quickly and accurately sort and distribute parcels, goods, commodities, etc. Compared with traditional sorting systems, the cross-belt sorting system has significant advantages in processing speed, sorting accuracy and flexibility.

[0003] In the prior art, the cross-belt sorting flow system generally includes a sorting machine, a conveyor trolley on the sorting machine, a control system and a sorting outlet. After the material is scanned and weighed by the control system, it is moved to multiple sorting outlets arranged on both sides of the sorting machine in a manner that a single material corresponds to a conveyor trolley through a conveyor belt composed of multiple conveyor trolleys on the sorting machine. When the conveyor trolley moves to the corresponding sorting outlet, the control system sends a signal to control the belt on the corresponding conveyor trolley to rotate. Since the belt rotation direction is 90° to the moving direction of the conveyor trolley, the material on the conveyor trolley moves along the angle between the two moving directions. , and its angle is cross-shaped with the moving direction of the conveyor trolley, which is a cross-belt sorting flow system. In the above scheme, the width of the sorting outlet is fixed, and the weight of each package is different. Since the speed of the conveyor trolley is constant, the intersection angle of each package with the moving direction of the conveyor trolley is different when leaving, which causes the path of the package to deviate and fall into the wrong sorting outlet. When the sorting machine is under high load working intensity, packages will be placed on each conveyor trolley. When the amount of sorted packages increases, the probability of the package falling into the wrong sorting outlet will also increase.

[0004] In response to the above problems, the prior art provides some solutions. For example, a sorting device is provided by the invention patent with patent application number 202280014142.6. This solution is achieved by setting a receiving unit between two sorting carts. The receiving unit is provided with a rotatable partition between the two sorting carts. When the sensor senses that the package is moving in the wrong direction, the partition rotates to guide the package to the correct sorting outlet. However, when the sorting device in this solution is in a high-load working state, the correct package and the wrong package may enter the same sorting outlet, and the time interval between the two objects entering is small. The prior art has a long response time, and it is easy to separate the correct object to another inaccurate sorting outlet, which again leads to sorting errors. Summary of the invention

[0005] The object of the present invention is to provide a cross-belt sorting flow system to solve the problem that the belt of the sorting trolley rotates at a constant speed, but the corresponding speed cannot be matched by the mass of the package, so that the angles at which the packages enter the corresponding sorting outlets are not uniform. When the sorting machine is in a high-load working state, the probability of the packages falling into the wrong sorting outlets increases; when the above problems occur, the sorting accuracy of the sorting machine is reduced, and at the same time, the deficiencies of the existing technical solutions are solved.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cross-belt sorting flow system comprises a cross-belt sorting machine and a sorting outlet, wherein a rotating chain and a guide rail driven by a motor are arranged inside the cross-belt sorting machine, wherein the guide rails are connected end to end to form a closed state, and friction plates driven by a cylinder are also arranged on both sides of the guide rails, wherein the rotating chain is located in the middle of the guide rails, and a plurality of the sorting outlets are arranged on both sides of the guide rails, and specifically, a sorting trolley is fixedly connected to the rotating chain, wherein a plurality of the sorting trolleys are connected end to end to form a closed state, and wherein the sorting trolley comprises a frame, a belt roller, a transmission assembly and A driving assembly, wherein the frame is slidably connected to the guide rail, the belt roller is arranged on the upper end surface of the frame and is parallel to the sorting outlet, the transmission assembly is arranged in the belt roller, the driving assembly is arranged in the frame, the driving assembly comprises a friction plate 1 and a friction plate 2, when the cylinder contracts, the friction plate is tangent to the friction plate 2, the friction plate 1 is tangent to the belt roller, the friction plate 1 is connected to the friction plate 2, and the transmission ratio of the transmission assembly increases according to the weight of the package through Hooke's law.

[0008] It is easy to understand that the cross-belt sorter scans and weighs the parcels in advance, so that a single parcel within the rated mass is sent from the belt to a single sorting trolley. The sorting trolley is restricted on the guide rail while following the rotating chain. When the sorting trolley moves to the guide rail with a sorting outlet, the cross-belt sorter controls the cylinder at the sorting outlet to extend, so that the friction plate rotates and abuts against the friction plate 2. The friction plate 2 rotates under the action of friction, so that the friction plate 1 drives the belt roller to rotate, thereby achieving the purpose of allocating the parcels to the corresponding sorting outlet. The transmission component uses Hooke's law to make the amplitude of the rack movement correspond to the weight of the package, and controls the diameter of the pulley 2 by the displacement of the rack, so that the transmission ratio of the drive component is adjusted according to the weight of different packages, so that the angle and speed of different packages entering the sorting outlet are constant, thereby ensuring the sorting accuracy when the sorter sorts packages.

[0009] Preferably, the transmission assembly comprises an upper cover and a lower cover, the upper cover and the lower cover are connected by a spring 1, and a plurality of guide wheels in a rectangular array are provided on the end surfaces of the upper cover and the lower cover in the direction toward the sorting outlet, and the guide wheels abut against the inner periphery of the belt roller, and a pressing sheet is provided in the upper cover, and a column pin, a spring 2, an irregular pressure plate, a lever, a rack, a spring 3, a transmission groove and a pressure equalizing member are provided in the lower cover, the column pin is provided in the middle of the frame of the lower cover, the spring 2 is sleeved on the column pin, and one end of the spring is connected to An irregular pressure plate, the lever is rotatably connected to the lower cover, one end of the lever abuts against the irregular pressure plate, and the other end is rotatably connected to the rack, the transmission groove is opened on the frame of the lower cover, the rack is slidably connected to the transmission groove, the upper and lower ends of the spring three are respectively connected to the rack and the opening edge of the transmission groove, the equalizing pressure piece is arranged on the frame of the lower cover, the upper end face of the equalizing pressure piece is clamped with the pressure plate, and the lower end face abuts against the irregular pressure plate, and the rack protrudes out of the transmission groove and is connected to the drive assembly.

[0010] It is easy to understand that in order to ensure that the weight of the package can accurately correspond to the transmission ratio of the drive assembly, the transmission assembly transmits the pressure of the package on the upper cover to the equalizing member through the pressure plate through Hooke's law. The equalizing member is pressed downward by the pressure and presses the irregular pressure plate. Spring 2 is stretched by the elastic force. Due to the displacement of the irregular pressure plate, the lever is rotated by the tension of spring 3, and the rack connected to the lever moves out of the transmission slot due to the rotation of the lever. In the above process, the stretching amount of spring 2 is related to the mass of the package. Within the elastic range of spring 2, the heavier the mass of the package, the greater the stretching amount of spring 2, so that the rack moves a greater distance outside the transmission slot due to the further rotation of the lever. As the rack moves further, the transmission ratio of its drive assembly increases, so that the packages within the rated mass can fall into the sorting outlet at the same speed, thereby ensuring the accuracy of the cross-belt sorting flow system falling into the correct sorting outlet when sorting packages of different masses.

[0011] Preferably, the driving assembly further comprises a rotating shaft, a pulley 1, a belt, a pulley 2, a bevel gear 1, a bevel gear 2 and a conical shaft, wherein the rotating shaft and the pulley 2 are rotatably connected in the frame, the friction disc 1 and the pulley 1 are fixedly connected to the rotating shaft, the pulley 2 is arranged directly below the pulley 1, and a belt transmission is formed through a belt, and a tensioning wheel is also abutted on the outer edge surface of the belt, and a bevel gear 1 is fixedly connected on the wheel surface of the pulley 2, the bevel gear 2 is arranged on the lower end surface of the frame and fixedly connected with the friction disc 2, the bevel gear 2 is meshed with the bevel gear 1, a sliding groove is provided in the pulley 2, a slider in a circumferential array is provided in the sliding groove, the slider abuts against the belt, one end of the conical shaft is slidably connected in the sliding groove and abuts against the inclined surface on the slider, and the other end is meshed with the rack through a gear, an radian part is provided in the frame, the belt roller is fixedly connected to the radian part, and the radian part is transmission-connected to the driving assembly.

[0012] It is easy to understand that when a package is placed on the sorting trolley, the rack moves out of the transmission groove by the displacement of the corresponding package mass, and through the opposite rotation of the gears, the conical shaft moves the same distance into the sliding groove, so that after the conical shaft penetrates into the sliding groove, the inclined surface on the slider abuts against the conical shaft. In the above process, the diameter of the conical shaft in the sliding groove gradually increases, so that the slider moves out of the sliding groove, and then the diameter of the pulley 2 is enlarged. The belt drive composed of the pulley 1, the belt, and the pulley 2 has a pulley 2 of the driving wheel with a larger diameter. , which increases the transmission ratio and directly affects the rotation speed of the friction plate 1 on the rotating shaft, so that the sorting trolley can match the corresponding transportation speed according to the weight of different packages, thereby ensuring that the speed of the packages is consistent when leaving the trolley, and further ensuring the accuracy of the cross-belt sorting flow system falling into the correct sorting outlet when sorting packages of different qualities. At the same time, the arc part tilts the package toward the corresponding sorting outlet according to the position of the friction plate, so that the angle of the package entering the sorting outlet is unified, thereby ensuring the sorting accuracy of the sorting machine when sorting packages.

[0013] Preferably, the arc member includes a fixed part and a rotating part, the rotating part is an outwardly convex semicircular arc surface and is rotatably connected to the fixed part, the semicircular arc surface is provided with a turbine thread, the fixed part is provided with a rotating groove facing the sorting outlet, a worm is rotatably connected in the rotating groove, one end of the worm is meshed with the turbine thread, and the other end is fixedly connected to a bevel gear three, and the bevel gear three is meshed with the bevel gear two.

[0014] It is easy to understand that in order to avoid the slipping phenomenon on the belt roller due to the shape and material of the package, thereby causing the package sorting error, when the friction plate is tangent to the friction disc 2, the bevel gear 2 rotates synchronously, thereby causing the bevel gear 3 meshing with it to rotate. Since the length of the friction plate is limited, by setting the rotation ratio between the turbine thread and the worm and the rotation direction of the thread on the worm, the rotating part of the bevel gear 3 can be tilted at a suitable angle toward the corresponding sorting outlet when the bevel gear 3 rotates, thereby ensuring that when the package slips on the belt roller, the inclination of the rotating part causes the package to be subjected to additional force, so that the package smoothly falls from the belt roller into the corresponding sorting outlet, thereby reducing the probability of sorting errors by the sorting trolley; at the same time, there is an infinite locking between the turbine thread and the worm, and the state of the package cannot affect the rotation angle of the rotating part. When the package leaves the sorting trolley, the friction plate on the other side is tangent to the friction disc 2, so that the bevel gear 3 on the worm rotates in the opposite direction, and then the rotating part is parallel to the sorting outlet again, thereby avoiding the inclination of the belt roller affecting the transportation stability of the next batch of packages.

[0015] Preferably, the pressure-equalizing member includes metal sheet one and metal sheet two, both ends of which are provided with hooks and slots, the hooks and slots are respectively connected to the lower cover frame and the pressure sheet, the metal sheet two is half the length of the metal sheet one, the hook on the metal sheet two is connected to the middle part of the metal sheet one through the square metal sheet, and the metal sheet one is in contact with the irregular pressure plate.

[0016] It is easy to understand that metal sheet one and metal sheet two are snap-fitted with the pressure sheet of the upper cover. When the upper cover is under pressure, the weight of the package is transferred to the four metal sheets one and two. The connection between metal sheet one and metal sheet two forms a balanced structure, so that the downward pressing distance of a pair of irregular pressure plates of the metal sheets is consistent, thereby ensuring that as long as the package is in the area of ​​the belt roller, the moving distance of its rack will not change slightly because the package is not in the center of the belt roller, thereby ensuring that the speed of the package is constant when it leaves the sorting cart.

[0017] Preferably, a tensioning groove is provided at the installation location of the tensioning wheel, and the tensioning wheel is slidably installed in the tensioning groove. A compensation spring is also provided in the tensioning groove, and the upper and lower ends of the compensation spring are respectively connected to the tensioning groove and the tensioning wheel.

[0018] It is easy to understand that in order to prevent the belt from stretching after long-term use and thus being unable to maintain a tensioned state, resulting in unstable power transmission by the drive component, the two sides of the tensioner are squeezed by the compensation spring and the elastic force of the belt. When the diameter of pulley 2 increases due to the extension of the slider, the belt moves toward the direction of the compensation spring, and the compensation spring is compressed and its elastic force increases, causing the tensioner to squeeze the belt when the belt rotates. The tensioner slides in the tensioning groove toward the belt direction and continues to squeeze the belt under the action of the elastic force, thereby maintaining the tensioned state of the belt when it rotates. When the belt no longer rotates, the elastic force of the compensation spring prevents the tensioner from squeezing the belt, thereby ensuring the accuracy of the drive component rotation ratio and the service life of the belt.

[0019] Preferably, the conical shaft is provided with a plurality of grooves in an array along the direction of the busbar, a locking groove is provided in the frame, a locking pin which matches the shape of and abuts the groove is provided in the locking groove, a locking spring which is perpendicular to the direction of the belt roller is provided in the locking pin, and the upper and lower ends of the locking spring abut against the locking pin and the locking groove respectively, a reset block is also provided on the guide rail at the end of the sorting outlet, the reset block is inclined and abuts against the locking pin, and the tail of the reset block is parallel to the upper end surface of the locking groove.

[0020] It is easy to understand that in order to avoid the belt from being subjected to excessive instantaneous tension when it changes from stationary to rotating, the package will be accelerated instantly when it is placed on the belt roller, resulting in unstable center of gravity, causing the transmission ratio of the belt to fluctuate, and the conical shaft moves a corresponding distance in the sliding groove. The groove on it fits with the locking pin, and thus the conical shaft cannot retract due to the change in center of gravity of the package. When the weight of the package meets the groove at the corresponding position, the conical shaft stops and the locking pin abuts against the corresponding groove. Because its groove fits with the locking pin, the conical shaft cannot move after the package is placed on the belt roller. When the package leaves the belt roller, the locking pin moves along the shape of the reset block, thereby releasing the lock on the conical shaft, thereby ensuring the constant forward and backward moving speed of the package when it leaves the sorting cart.

[0021] Preferably, a reset portion and a cam are further provided on the bevel gear three, the cam is located inside the reset portion, a plurality of reset springs in a circular array are provided inside the reset portion, the number of the reset springs corresponds to the number of the cam, and the upper and lower ends of the reset spring are respectively connected to the cam.

[0022] It is easy to understand that when bevel gear two rotates, bevel gear three rotates synchronously, and its return spring is compressed to give cam thrust, so that the worm rotates, and then the turbine thread drives the rotating part to rotate synchronously. When the package leaves the belt roller, bevel gear one stops, and the return spring gives cam pulling force, and the worm rotates in the opposite direction, so that the rotating part is parallel to the sorting outlet again, thereby ensuring the stability of the next package during transportation.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention arranges a driving assembly, a transmission assembly and an arc member on the sorting trolley. The transmission assembly makes the amplitude of the rack movement correspond to the weight of the package through Hooke's law, ensures the accuracy of the rack displacement through the pressure equalizing member, and controls the diameter of the pulley 2 through the displacement of the rack, so that the transmission ratio of the driving assembly is adjusted according to the weight of the package. At the same time, the arc member makes the worm rotate toward the corresponding sorting outlet according to the position of the friction plate, and tilts the package toward the corresponding sorting outlet, so that the angle of the package entering the sorting outlet is unified, thereby ensuring the accuracy of the package falling into the correct sorting outlet when the sorting machine sorts the package.

[0025] 2. The present invention sets a pressure equalizing member, and the metal sheet 1 and the metal sheet 2 are clamped with the pressure sheet of the upper cover. When the upper cover is subjected to pressure, the weight of the package is transferred to the metal sheet 1 and the metal sheet 2, which are a total of four pieces. The connection method of the metal sheet 1 and the metal sheet 2 forms a balanced structure, so that the downward pressing distance of the irregular pressure plates of the metal sheets is consistent, thereby ensuring that as long as the package is in the area of ​​the belt roller, the moving distance of its rack will not change because the package is not in the center of the belt roller, thereby ensuring that the speed of the package is constant before and after leaving the sorting cart.

[0026] 3. The present invention provides grooves, locking pins and reset blocks. When a package is placed on the belt roller, the conical shaft moves a corresponding distance in the sliding groove. The groove thereon fits with the locking pin, so that the conical shaft cannot retract due to the change in the center of gravity of the package. When the weight of the package meets the groove at the corresponding position, the conical shaft stops and the locking pin abuts against the corresponding groove. Because its groove fits with the locking pin, the conical shaft cannot move after the package is placed on the belt roller. When the package leaves the belt roller, the locking pin moves along the shape of the reset block, thereby releasing the lock on the conical shaft, thereby ensuring the constant speed of the package when it leaves the sorting cart.

[0027] 4. The present invention provides a reset part and a cam. When bevel gear two rotates, bevel gear three rotates synchronously, and its reset spring is compressed to give thrust to the cam, so that the worm rotates, and then the turbine thread drives the rotating part to rotate synchronously. When the package leaves the belt roller, bevel gear one stops, the reset spring gives pulling force to the cam, and the worm rotates in the opposite direction, so that the rotating part is parallel to the sorting outlet again, thereby ensuring the stability of the next package during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of a cross-belt sorting flow system of the present invention;

[0029] Figure 2This is a schematic diagram of the second isometric structure of the sorting trolley;

[0030] Figure 3 This is a side view of the sorting trolley;

[0031] Figure 4 for Figure 2 Full cross-section at AA in the middle;

[0032] Figure 5 It is a schematic diagram of the structure of the upper cover parts;

[0033] Figure 6 It is a schematic diagram of the structural state of the cooperation between the second pulley and the tapered shaft;

[0034] Figure 7 Schematic diagram of the structure of the arc part when tilted

[0035] Figure 8 for Figure 7 Full cross-section at the middle BB;

[0036] Fig. 9 It is a schematic diagram of the structural state of the worm and the bevel gear in the reset part, three-way convex circle and reset spring matching;

[0037] Fig.10 This is a schematic diagram of the structural state of the cooperation between pulley 2 and the tapered shaft.

[0038] In the figure: 1. Cross-belt sorting machine; 101. Rotating chain; 102. Guide rail; 1021. Reset block; 103. Cylinder; 104. Friction plate; 2. Sorting outlet; 3. Sorting trolley; 301. Frame; 302. Belt roller; 4. Transmission assembly; 401. Upper cover; 4011. Pressing plate; 402. Lower cover; 4021. Pin; 4022. Spring 2; 4023. Irregular pressing plate; 4024. Lever; 4025. Rack; 4026. Spring 3; 403. Spring 1; 404. Guide wheel; 405. Transmission slot; 406. Pressure equalizing piece; 4061. Metal sheet 1; 4062. Metal sheet 2; 4063. Hook; 4064. Slot; 5. Driving assembly; 501. Friction disc 1; 502, friction disc 2; 503, rotating shaft; 504, pulley 1; 505, belt; 5051, tensioning wheel; 5052, tensioning groove; 5053, compensation spring; 506, pulley 2; 5061, sliding groove; 5062, sliding block; 5063, inclined surface; 5064, gear; 507, bevel gear 1; 508, bevel gear 2; 509, tapered shaft; 5091, groove; 5092, locking groove; 5093, locking pin; 5094, locking spring; 6, camber piece; 601, fixing part; 6011, rotating groove; 6012, worm; 602, rotating part; 6021, turbine thread; 603, bevel gear 3; 6031, reset part; 6032, convex circle; 6033, reset spring. DETAILED DESCRIPTION

[0039] The present invention provides a cross-belt sorting flow system, and the technical solution is as follows:

[0040] See also Figures 1 to 3A cross-belt sorting flow system includes a cross-belt sorting machine 1 and a sorting outlet 2. The cross-belt sorting machine 1 is provided with a rotating chain 101 and a guide rail 102 driven by a motor. The guide rail 102 is connected end to end to form a closed state. Both sides of the guide rail 102 are also provided with friction plates 104 driven by a cylinder 103. The rotating chain 101 is located in the middle of the guide rail 102. A plurality of sorting outlets 2 are arranged on both sides of the guide rail 102. Specifically, a sorting trolley 3 is fixedly connected to the rotating chain 101. The plurality of sorting trolleys 3 are connected end to end to form a closed state. The sorting trolley 3 includes a frame 301, a belt roller 302, a transmission assembly 4 and a drive assembly 5. The frame 301 is slidably connected to the guide rail 102. On the upper side, the belt roller 302 is arranged on the upper end surface of the frame 301 and is parallel to the sorting outlet 2, the transmission component 4 is arranged in the belt roller 302, and the driving component 5 is arranged in the frame 301. The driving component 5 includes a friction disc 1 501 and a friction disc 2 502. The friction disc 1 501 and the friction disc 2 502 are tangent to the friction plate 104 and the belt roller 302 respectively. The friction disc 1 501 is connected to the friction disc 2 502 by transmission. The transmission component 4 increases the transmission ratio of the driving component 5 according to the weight of the package through Hooke's law. The frame 301 is a rotatable structure, which is provided with an arc member 6. The belt roller 302 is fixedly connected to the arc member 6, and the arc member 6 is connected to the driving component 5 by transmission.

[0041] See also Figures 1 to 5The transmission assembly 4 includes an upper cover 401 and a lower cover 402, the upper cover 401 and the lower cover 402 are connected by a spring 1 403, and a plurality of guide wheels 404 in a rectangular array are provided on the end surfaces of the upper cover 401 and the lower cover 402 in the direction toward the sorting outlet 2, a pressing sheet 4011 is provided in the upper cover 401, and a pin 4021, a spring 2 4022, an irregular pressing plate 4023, a lever 4024, The rack 4025, the spring three 4026, the transmission groove 405 and the equalizing member 406, the pin 4021 is arranged in the middle of the frame of the lower cover 402, the spring two 4022 is sleeved on the pin 4021, one end of which is connected to the irregular pressure plate 4023, the lever 4024 is rotatably connected to the lower cover 402, one end of the lever 4024 is in contact with the irregular pressure plate 4023, and the other end is rotatably connected to the rack 4025, the transmission groove 40 5 is opened on the frame of the lower cover 402, the rack 4025 is slidably connected with the transmission groove 405, the upper and lower ends of the spring three 4026 are respectively connected with the rack 4025 and the opening edge of the transmission groove 405, the pressure equalizing member 406 is arranged on the frame of the lower cover 402, the upper end surface of the pressure equalizing member 406 is clamped with the pressing sheet 4011, and the lower end surface is abutted with the irregular pressing plate 4023, and the pressure equalizing member 406 includes a metal sheet 1 4061 and a metal sheet 2 4062. 62, hooks 4063 and slots 4064 are provided at both ends of the metal sheet 1 4061 and the metal sheet 2 4062, the hooks 4063 and the slots 4064 are respectively engaged with the frame of the lower cover 402 and the pressing sheet 4011, the metal sheet 2 4062 is half the length of the metal sheet 1 4061, the metal sheet 2 4062 is connected to the middle part of the metal sheet 1 4061, and the metal sheet 1 4061 is in contact with the irregular pressing plate 4023.

[0042] See also Figures 1 to 3 , Figure 6 , Fig.10The driving assembly 5 also includes a rotating shaft 503, a pulley 1 504, a belt 505, a pulley 2 506, a bevel gear 1 507, a bevel gear 2 508 and a conical shaft 509. The rotating shaft 503 is rotatably connected to the frame 301. The friction plate 1 501 and the pulley 1 504 are fixedly connected to the rotating shaft 503. The pulley 2 506 is arranged directly below the pulley 1 504 and is transmitted by the belt 505. The outer edge surface of the belt 505 is also abutted with a tensioning wheel 5051. The pulley 2 The wheel surface of 506 is fixedly connected with a bevel gear 1 507, a bevel gear 2 508 is arranged on the lower end surface of the frame 301 and is fixedly connected with the friction plate 2 502, the bevel gear 2 508 is meshed with the bevel gear 1 507, a sliding groove 5061 is provided in the pulley 2 506, and a slider 5062 in a circumferential array is provided in the sliding groove 5061, and the slider 5062 abuts against the belt 505, and one end of the conical shaft 509 is slidably connected in the sliding groove 5061 and abuts against the inclined surface 5063 on the slider 5062 , the other end is meshed with the rack 4025 through the gear 5064, a tensioning groove 5052 is also provided at the installation place of the tensioning wheel 5051, the tensioning wheel 5051 is slidably installed in the tensioning groove 5052, a compensation spring 5053 is also provided in the tensioning groove 5052, and the upper and lower ends of the compensation spring 5053 are respectively connected to the tensioning groove 5052 and the tensioning wheel 5051, the conical shaft 509 is provided with a plurality of grooves 5091 in an array along the generatrix direction, a locking groove 5092 is provided in the frame 301, and the locking groove 5093 is provided in the frame 301. 092 is provided with a locking pin 5093 which matches the shape of and abuts the groove 5091, and a locking spring 5094 which is perpendicular to the direction of the belt roller 302 is provided in the locking pin 5093, and the upper and lower ends of the locking spring 5094 abut against the locking pin 5093 and the locking groove 5092 respectively, and a reset block 1021 is also provided on the guide rail 102 at the end of the sorting outlet 2, and the reset block 1021 is inclined and abuts against the locking pin 5093, and the tail of the reset block 1021 is parallel to the upper end surface of the locking groove 5092.

[0043] See also Figures 1 to 3 and Figures 7 to 9The arc member 6 includes a fixed portion 601 and a rotating portion 602. The rotating portion 602 is an outwardly convex semicircular arc surface and is rotatably connected to the fixed portion 601. A turbine thread 6021 is provided on the semicircular arc surface. A rotating groove 6011 is provided on the fixed portion 601 toward the sorting outlet 2. A worm 6012 is rotatably connected in the rotating groove 6011. One end of the worm 6012 is meshed with the turbine thread 6021, and the other end is fixedly connected with a bevel gear three 603. The bevel gear three 603 is meshed with the bevel gear two 508. A reset portion 6031 and a convex circle 6032 are also provided on the bevel gear three 603. The convex circle 6032 is located in the reset portion 6031. A plurality of reset springs 6033 in a circular array are provided in the reset portion 6031. The number of the reset springs 6033 corresponds to that of the convex circle 6032. The upper and lower ends of the reset spring 6033 are respectively connected to the convex circle 6032.

[0044] See also Figures 1 to 8 The cross-belt sorting machine 1 (not shown) scans and weighs the parcels in advance, so that a single parcel within the rated mass is sent from the belt 505 to a single sorting trolley 3. The sorting trolley 3 is restricted on the guide rail 102 while following the movement of the rotating chain 101. When the sorting trolley 3 moves to the guide rail 102 where the sorting outlet 2 (not shown) is provided, the cross-belt sorting machine 1 controls the cylinder 103 at the sorting outlet 2 to extend, so that the friction plate 104 rotates and abuts against the friction disk 2 502. The friction disk 2 502 The friction disk 1 501 rotates under the action of friction force, so that the belt roller 302 is driven to rotate, thereby achieving the purpose of allocating the parcel to the corresponding sorting outlet 2. The transmission component 4 uses Hooke's law to make the amplitude of the movement of the rack 4025 correspond to the weight of the parcel, and controls the diameter of the pulley 2 506 by the displacement of the rack 4025, so that the transmission ratio of the driving component 5 is adjusted according to the weight of the parcel, so that the angle and speed of the parcel entering the sorting outlet 2 are unified, thereby ensuring the sorting accuracy when the sorting machine sorts the parcel.

[0045] In order to ensure that the weight of the package can accurately correspond to the transmission ratio of the driving component 5, the transmission component 4 transmits the pressure of the package on the upper cover 401 to the equalizing member 406 through the pressing plate 4011 according to Hooke's law. The equalizing member 406 is subjected to pressure and presses the irregular pressure plate 4023 downward. The spring 2 4022 is stretched by the elastic force. Due to the displacement of the irregular pressure plate 4023, the lever 4024 is rotated by the pulling force of the spring 3 4026. The rack 4025 connected to the lever 4024 moves out of the transmission slot 405 due to the rotation of the lever 4024. In the above process, the stretching amount of the spring 2 4022 is related to the mass of the package. Within the elastic range of the spring 2 4022, the heavier the mass of the package, the greater the stretching amount of the spring 2 4022, so that the rack 4025 moves a greater distance out of the transmission slot 405 due to the further rotation of the lever 4024. As the rack 4025 is further The first and second metal sheets 4061 and 4062 move step by step, and the transmission ratio of the driving component 5 is increased, so that the packages within the rated mass can fall into the sorting outlet 2 at the same speed, thereby ensuring the accuracy of the cross-belt sorting flow system falling into the correct sorting outlet 2 when sorting packages of different masses. The metal sheet 1 4061 and the metal sheet 2 4062 are engaged with the pressing sheet 4011 of the upper cover 401. When the upper cover 401 receives pressure, the weight of the package is transferred to the four metal sheets 1 4061 and the metal sheet 2 4062, and the connection mode of the metal sheet 1 4061 and the metal sheet 2 4062 forms a balanced structure, so that the pressing distance of the metal sheet 1 4061 on the irregular pressing plate 4023 is consistent, thereby ensuring that as long as the package is in the area of ​​the belt roller 302, the moving distance of the rack 4025 will not change slightly because the package is not at the center of the belt roller 302, thereby ensuring the speed of the package leaving the sorting trolley 3.

[0046] When a parcel is placed on the sorting trolley 3, the rack 4025 moves out of the transmission groove 405 by the displacement of the corresponding parcel mass, and through the counter-rotation of the gear 5064, the conical shaft 509 moves the same distance into the sliding groove 5061, so that after the conical shaft 509 penetrates into the sliding groove 5061, the inclined surface 5063 on the slider 5062 abuts against the conical shaft 509. In the above process, the diameter of the conical shaft 509 in the sliding groove 5061 gradually increases, so that the slider 5062 moves out of the sliding groove 5061, and then the diameter of the pulley 2 506 is expanded. The belt 505 transmission composed of the pulley 1 504, the belt 505 and the pulley 2 506 has a diameter expansion of the pulley 2 506 of the driving wheel. The larger the friction plate 104 is, the greater the transmission ratio is, which directly affects the rotation speed of the friction plate 501 on the rotating shaft 503, so that the sorting trolley 3 can match the corresponding transportation speed according to the weight of different packages, thereby ensuring that the speed of the packages is consistent when leaving the trolley, and further ensuring the accuracy of the cross-belt sorting flow system falling into the correct sorting outlet 2 when sorting packages of different qualities. At the same time, the arc member 6 tilts the package toward the corresponding sorting outlet 2 according to the position of the friction plate 104, so that the angle of the package entering the sorting outlet 2 is uniform, thereby ensuring the sorting accuracy of the sorting machine when sorting packages. In order to prevent the belt 505 from stretching after long-term use and thus being unable to maintain a tensioned state, making the drive component 5 unstable in transferring power, the tension wheel The two sides of 5051 are squeezed by the compensation spring 5053 and the elastic force of the belt 505. When the diameter of the pulley 2 506 increases due to the extension of the slider 5062, the belt 505 moves toward the compensation spring 5053. The compensation spring 5053 is compressed and its elastic force increases, so that the tensioning wheel 5051 squeezes the belt 505 when the belt 505 rotates. The tensioning wheel 5051 slides in the tensioning groove 5052 toward the belt 505 and continuously squeezes the belt 505 under the action of the elastic force, thereby maintaining the tensioned state of the belt 505 when it rotates. When the belt 505 stops rotating, the elastic force of the compensation spring 5053 makes it impossible for the tensioning wheel 5051 to squeeze the belt 505, thereby ensuring the rotation ratio of the drive component 5 In order to ensure the accuracy and service life of the belt 505, the conical shaft 509 moves a corresponding distance into the sliding groove 5061, and the groove 5091 thereon fits with the locking pin 5093, so that the conical shaft 509 cannot retract due to the change in the center of gravity of the package. When the weight of the package meets the groove 5091 at the corresponding position, the conical shaft 509 stops and the locking pin 5093 abuts against the corresponding groove 5091. Because its groove 5091 fits with the locking pin 5093, the conical shaft 509 cannot move after the package is placed in the belt roller 302. When the package leaves the belt roller 302, the locking pin 5093 moves along the shape of the reset block 1021, thereby releasing the lock on the conical shaft 509, thereby ensuring the constant speed of the package when it leaves the sorting cart 3.

[0047] When the friction plate 104 is tangent to the friction plate 2 502, the bevel gear 2 508 rotates synchronously, thereby causing the bevel gear 3 603 meshing therewith to rotate. Since the length of the friction plate 104 is limited, by setting the rotation ratio between the turbine thread 6021 and the worm 6012 and the rotation direction of the thread on the worm 6012, when the bevel gear 3 603 rotates, its rotating part 602 can be tilted at a suitable angle toward the corresponding sorting outlet 2, thereby ensuring that the package can fall into the corresponding sorting outlet 2 more quickly, thereby improving the sorting efficiency of the sorting machine; at the same time, the turbine thread 6021 and the worm 6012 are steplessly locked, and the state of the package cannot affect the rotating part 602 The rotation angle of the bevel gear 508 is 0.0403mm / s and the bevel gear 508 is 0.0403mm / s. When the package leaves the sorting trolley 3, when the bevel gear 2 508 rotates, the bevel gear 3 603 rotates synchronously, and its return spring 6033 is compressed to give thrust to the cam 6032, so that the worm 6012 rotates, and then the turbine thread 6021 drives the rotating part 602 to rotate synchronously. When the package leaves the belt roller 302, the bevel gear 1 507 stops, and the return spring 6033 gives pulling force to the cam 6032, and the worm 6012 rotates in the opposite direction, so that the bevel gear 3 603 on the worm 6012 rotates in the opposite direction, and then the rotating part 602 is parallel to the sorting outlet 2 again, thereby avoiding the transportation stability of the next batch of packages affected by the tilt of the belt roller 302.

[0048] A specific embodiment of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above described embodiment. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments without departing from the principles and ideas of the present invention should still fall within the scope of protection of the present invention.

Claims

1. A cross-belt sorting flow system, comprising a cross-belt sorting machine (1) and a sorting outlet (2), wherein the cross-belt sorting machine (1) is provided with a rotating chain (101) and a guide rail (102) driven by a motor, wherein the guide rail (102) is connected end to end to form a closed state, and friction plates (104) driven by a cylinder (103) are further provided on both sides of the guide rail (102), wherein the rotating chain (101) is located in the middle of the guide rail (102), and a plurality of the sorting outlets (2) are ... the plurality of the sorting outlets (2) are provided on both sides of the guide rail (102), wherein the rotating chain (101) is located in the middle of the guide rail (102), and the plurality of the sorting outlets (2) are provided on both sides of the guide rail (102), A sorting trolley (3) is fixedly connected to the rotating chain (101), and a plurality of the sorting trolleys (3) are connected end to end to form a closed structure. The sorting trolley (3) comprises a frame (301), a belt roller (302), a transmission assembly (4) and a drive assembly (5). The frame (301) is slidably connected to the guide rail (102), the belt roller (302) is arranged on the upper end surface of the frame (301) and is parallel to the sorting outlet (2), and the transmission assembly (4) is arranged inside the belt roller (302). The drive assembly (5) is arranged in the frame (301), and the drive assembly (5) includes a friction plate 1 (501) and a friction plate 2 (502). When the cylinder (103) contracts, the friction plate (104) is tangent to the friction plate 2 (502), the friction plate 1 (501) is tangent to the belt roller (302), and the friction plate 1 (501) is connected to the friction plate 2 (502). The transmission assembly (4) increases the transmission ratio of the drive assembly (5) according to the weight of the package through Hooke's law.

2. A cross-belt sorting flow system according to claim 1, characterized in that: The transmission assembly (4) comprises an upper cover (401) and a lower cover (402), wherein the upper cover (401) and the lower cover (402) are connected via a spring 1 (403), and a plurality of guide wheels (404) in a rectangular array are provided on the end surfaces of the upper cover (401) and the lower cover (402) in a direction facing the sorting outlet (2), wherein the guide wheels (404) abut against the inner periphery of the belt roller (302), and the inner periphery of the upper cover (401) is provided with a plurality of guide wheels (404) in a rectangular array. A pressing sheet (4011) is also provided, and a column pin (4021), a second spring (4022), an irregular pressing plate (4023), a lever (4024), a rack (4025), a third spring (4026), a transmission groove (405) and a pressure equalizing member (406) are also provided in the lower cover (402), wherein the column pin (4021) is provided in the middle of the frame of the lower cover (402), and the second spring (4022) is sleeved on the column pin (4021). One end of the spring 2 (4022) is connected to an irregular pressure plate (4023), the lever (4024) is rotatably connected to the lower cover (402), one end of the lever (4024) is in contact with the irregular pressure plate (4023), and the other end is rotatably connected to the rack (4025), the transmission groove (405) is provided on the frame of the lower cover (402), and the rack (4025) is slidably connected to the transmission groove (405), The upper and lower ends of the spring three (4026) are respectively connected to the rack (4025) and the opening edge of the transmission groove (405); the pressure equalizing member (406) is arranged on the frame of the lower cover (402); the upper end surface of the pressure equalizing member (406) is engaged with the pressing sheet (4011), and the lower end surface is in contact with the irregular pressing plate (4023); the rack (4025) extending out of the transmission groove (405) is connected to the driving assembly (5).

3. A cross-belt sorting flow system according to claim 2, characterized in that: The driving assembly (5) further comprises a rotating shaft (503), a pulley 1 (504), a belt (505), a pulley 2 (506), a bevel gear 1 (507), a bevel gear 2 (508) and a conical shaft (509); the rotating shaft (503) and the pulley 2 (506) are rotatably connected to the frame (301); the friction disc 1 (501) and the pulley 1 (504) are fixedly connected to the rotating shaft (503); the pulley 2 (506) is arranged directly below the pulley 1 (504) and is driven by the belt (505); a tensioning wheel (5051) is also abutted on the outer edge surface of the belt (505); a bevel gear 1 (507) is fixedly connected to the wheel surface of the pulley 2 (506); the bevel gear 2 (508) is arranged on the frame (30 1) and is fixedly connected to the lower end surface of the friction disk 2 (502), the bevel gear 2 (508) is meshed with the bevel gear 1 (507), a sliding groove (5061) is provided in the pulley 2 (506), a slider (5062) in a circular array is provided in the sliding groove (5061), the slider (5062) is in contact with the belt (505), one end of the conical shaft (509) is slidably connected in the sliding groove (5061) and is in contact with the inclined surface (5063) on the slider (5062), and the other end is meshed with the rack (4025) through a gear (5064), and an arc part (6) is also provided in the frame (301), the belt roller (302) is fixedly connected to the arc part (6), and the arc part (6) is transmission-connected to the bevel gear 2 (508).

4. A cross-belt sorting flow system according to claim 1, characterized in that: The arc member (6) comprises a fixed part (601) and a rotating part (602); the rotating part (602) is in the form of an outwardly convex semicircular arc surface and is rotatably connected to the fixed part (601); a turbine thread (6021) is provided on the semicircular arc surface; a rotating groove (6011) is provided on the fixed part (601) in the direction of the sorting outlet (2); a worm (6012) is rotatably connected in the rotating groove (6011); one end of the worm (6012) is meshed with the turbine thread (6021); the other end is fixedly connected to a bevel gear three (603); the bevel gear three (603) is meshed with the bevel gear two (508).

5. A cross-belt sorting flow system according to claim 2, characterized in that: The pressure-equalizing member (406) comprises a metal sheet 1 (4061) and a metal sheet 2 (4062). Both ends of the metal sheet 1 (4061) and the metal sheet 2 (4062) are provided with a hook (4063) and a slot (4064). The hook (4063) and the slot (4064) are respectively engaged with the frame of the lower cover (402) and the pressing sheet (4011). The metal sheet 2 (4062) is half the length of the metal sheet 1 (4061). The hook (4063) on the metal sheet 2 (4062) is engaged with the middle part of the metal sheet 1 (4061) through a square metal sheet. The metal sheet 1 (4061) is in contact with the irregular pressing plate (4023).

6. A cross-belt sorting flow system according to claim 3, characterized in that: A tensioning groove (5052) is also provided at the installation location of the tensioning wheel (5051), and the tensioning wheel (5051) is slidably installed on the tensioning groove (5052). A compensation spring (5053) is also provided in the tensioning groove (5052), and the upper and lower ends of the compensation spring (5053) are respectively connected to the tensioning groove (5052) and the tensioning wheel (5051).

7. A cross-belt sorting flow system according to claim 3, characterized in that: The conical shaft (509) is provided with a plurality of grooves (5091) in an array along the generatrix direction; a locking groove (5092) is provided in the frame (301); a locking pin (5093) which matches the shape of and abuts the groove (5091) is provided in the locking groove (5092); a locking spring (5094) which is perpendicular to the direction of the belt roller (302) is provided in the locking pin (5093); the upper and lower ends of the locking spring (5094) abut against the locking pin (5093) and the locking groove (5092) respectively; a reset block (1021) is also provided on the guide rail (102) at the end of the sorting outlet (2); the reset block (1021) is arranged in an inclined manner and abuts against the locking pin (5093); and the tail of the reset block (1021) is parallel to the upper end surface of the locking groove (5092).

8. The cross-belt sorting flow system according to claim 4, characterized in that: The bevel gear three (603) is also provided with a reset portion (6031) and a convex circle (6032), the convex circle (6032) is located inside the reset portion (6031), and the reset portion (6031) is provided with a plurality of reset springs (6033) in a circular array, the number of the reset springs (6033) corresponds to the number of the convex circle (6032), and the upper and lower ends of the reset spring (6033) are respectively connected to the convex circle (6032).

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