CN210162615U

CN210162615U - Sorting device

Info

Publication number: CN210162615U
Application number: CN201920468923.8U
Authority: CN
Inventors: 洪健荣
Original assignee: Shenzhen New South China Sea Transmission Machinery Co Ltd
Current assignee: South China Xinhai (Shenzhen) Technology Co.,Ltd.
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-03-20
Anticipated expiration: 2029-04-03

Abstract

The utility model discloses a sorting device, which comprises a roller conveying mechanism and a driving mechanism; the roller conveying mechanism comprises a plurality of roller conveying modules which are arranged in a plurality of rows and a plurality of columns, each roller conveying module comprises a driving shaft, a roller assembly, a transmission mechanism which is arranged between the driving shaft and the roller assembly in a transmission mode and used for driving the roller assembly to rotate along with the driving shaft, and a first bevel gear which is arranged on the driving shaft; the driving mechanism comprises a motor, a plurality of transmission assemblies respectively used for being connected with the plurality of roller conveying mechanisms in a one-to-one correspondence mode, a first belt transmission assembly used for driving one row of transmission assemblies to rotate synchronously, and a plurality of second belt transmission assemblies used for driving all rows of transmission assemblies to rotate synchronously one by one respectively, the motor is connected with any one transmission assembly, and each transmission assembly comprises a second bevel gear meshed with the first bevel gear. The utility model discloses a sorting device has simple structure, cooperation compactness, can reduce cost in order to obtain the advantage in great market space.

Description

Sorting device

Technical Field

The utility model relates to a letter sorting equipment field especially relates to a sorting device.

Background

The conventional sorting device is provided with a roller sorting device and a balance wheel sorting device, the roller sorting device drives a whole row of rollers to rotate through a power source so as to sort and convey objects, and the balance wheel sorting device realizes the sorting and conveying of the objects through the synchronous rotation of a plurality of roller assemblies arranged in an array.

Most of existing balance wheel sorting devices drive a plurality of rollers to synchronously rotate by arranging a plurality of driving motors, or drive a plurality of rotating shafts to synchronously rotate by arranging a single motor to be matched with a belt wheel mechanism, and then drive a plurality of rollers to synchronously rotate by the plurality of rotating shafts which synchronously rotate through the belt wheel mechanism. The arrangement mode of the sorting device is complex in structure and high in cost, and is not beneficial to obtaining larger market space.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model discloses a sorting device for solve the problem that current sorting device structure is complicated, with high costs, is unfavorable for obtaining great market space.

The purpose of the utility model is realized by adopting the following technical scheme:

a sorting device comprises a roller conveying mechanism for conveying articles and a driving mechanism for driving the roller conveying mechanism to operate; the roller conveying mechanism comprises a plurality of roller conveying modules which are arranged in a plurality of rows and a plurality of columns, and each roller conveying module comprises a driving shaft, a roller assembly, a transmission mechanism which is installed between the driving shaft and the roller assembly in a transmission mode and used for driving the roller assembly to rotate along with the driving shaft, and a first bevel gear installed on the driving shaft; the driving mechanism comprises a motor, a plurality of transmission assemblies, a first belt transmission assembly and a plurality of second belt transmission assemblies, wherein the transmission assemblies are respectively used for being in one-to-one corresponding connection with the roller wheel transmission mechanisms, the first belt transmission assemblies are used for driving one of the transmission assemblies to synchronously rotate, the second belt transmission assemblies are used for respectively driving each row of the transmission assemblies to synchronously rotate, the motor is connected with any one of the transmission assemblies, and each transmission assembly comprises a second bevel gear meshed with the first bevel gear.

As an improvement, one of the rows of transmission assemblies located at the edge is defined as a first row of transmission assemblies, the first belt pulley transmission assembly is used for driving the first row of transmission assemblies to rotate synchronously, and the motor is connected to any one of the two transmission assemblies located at the two ends of the first row of transmission assemblies.

As an improved mode, the first belt transmission assembly comprises a first belt and a plurality of first belt pulleys, the plurality of first belt pulleys are fixedly mounted on a row of the transmission assemblies arranged in a row in a one-to-one correspondence manner, and the first belt is arranged around the plurality of first belt pulleys; every second belt drive assembly includes second belt and a plurality of second belt pulley, a plurality of second belt pulley one-to-one fixed mounting is in the one of in-line setting on the drive assembly, the second belt winding a plurality of second belt pulley sets up.

As an improvement, the driving mechanism further comprises a base plate and a plurality of tensioning mechanisms for adjusting the first belt tension and the second belt tension, and the tensioning mechanisms are adjustably mounted on the base plate.

As an improvement, each tensioning mechanism comprises a supporting plate and a plurality of rotating wheel assemblies rotatably mounted on the supporting plate, at least two kidney-shaped holes are formed in the supporting plate, the supporting plate is adjustably mounted on the base plate through the matching of the kidney-shaped holes and the bolt assemblies, and the rotating wheel assemblies press the first belt and the second belt from the outer side of the first belt and the outer side of the second belt.

As an improved mode, each transmission assembly further comprises a rotating shaft, the second bevel gear is installed at one end of the rotating shaft, the first belt pulley and the second belt pulley are sleeved outside the rotating shaft, the first belt pulley is arranged on one side, away from the second bevel gear, of the rotating shaft, and the second belt pulley is arranged between the second bevel gear and the first belt pulley.

As an improvement, the roller assembly includes a first rotating shaft disposed above the driving shaft, a second rotating shaft disposed on one side of the first rotating shaft, a third rotating shaft disposed on the other side of the first rotating shaft, two first rollers mounted on the first rotating shaft at intervals, a second roller mounted on the second rotating shaft and located between the two first rollers, and a third roller mounted on the third rotating shaft and located between the two first rollers and disposed opposite to the second roller, wherein the driving mechanism is mounted between the driving shaft, the first rotating shaft, the second rotating shaft, and the third rotating shaft in a transmission manner.

As an improvement, the transmission mechanism includes a third belt, a fourth belt, a third belt pulley and two fourth belt pulleys, three the third belt pulley is respectively sleeved outside the driving shaft, outside the first rotating shaft and outside the second rotating shaft, the third belt is surrounded in three outside the third belt pulley, two the fourth belt pulley is respectively sleeved outside the second rotating shaft and outside the third rotating shaft, the fourth belt is surrounded in two outside the fourth belt pulley.

As a modification, the third belt and the fourth belt are respectively located on both axial sides of the third roller.

As an improvement, each roller conveying module further includes a base, a cover plate, and two first side plates, the base has a first surface and a second surface opposite to the first surface, the two first side plates are disposed on the first surface at intervals, the driving shaft, the first rotating shaft, the second rotating shaft, and the third rotating shaft are rotatably mounted between the two first side plates, the cover plate is connected to one side of the first side plate away from the base, four openings are disposed on the cover plate at intervals, and the two first rollers, the second rollers, and the third rollers are partially exposed out of one of the openings.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a sorting device is used for driving one of them transmission assembly synchronous rotation through setting up first belt drive assembly, and a plurality of second belt drive assembly is used for driving each row transmission assembly synchronous rotation respectively one by one, and the drive mechanism transmission is installed between drive shaft and wheel components in order to be used for driving wheel components and rotate along with the drive shaft, and the rethread sets up and installs first bevel gear in every drive shaft, and every transmission assembly includes the second bevel gear with first bevel gear meshing. Like this, when the motor rotates, drive all transmission assembly synchronous rotations through first belt transmission subassembly and second belt transmission subassembly, transmission assembly drives all drive shafts synchronous rotation through meshed first bevel gear and second bevel gear, and the drive shaft drives all wheel components synchronous rotation through drive mechanism, and synchronous pivoted wheel components conveys article. The driving mechanism and the roller conveying mechanism are simple in structure and compact in matching, and cost can be effectively reduced to obtain larger market space.

Drawings

Fig. 1 is a schematic structural diagram of a sorting device disclosed in an embodiment of the present invention;

fig. 2 is an exploded schematic view of a sorting device disclosed in an embodiment of the present invention;

fig. 3 is a schematic view of the roller conveying mechanism and the driving mechanism according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of a driving mechanism disclosed in an embodiment of the present invention;

fig. 5 is a schematic structural view of the driving mechanism according to the embodiment of the present invention after the substrate is removed;

fig. 6 is a schematic view illustrating a connection between a transmission assembly and a first pulley and a second pulley according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a tensioning mechanism disclosed in an embodiment of the present invention;

fig. 8 is a schematic view of the bearing seat, the second bearing and the substrate according to the embodiment of the present invention.

Fig. 9 is an exploded view of a roller conveying mechanism according to an embodiment of the present invention;

fig. 10 is an exploded view of a roller transfer module according to an embodiment of the present invention;

fig. 11 is an exploded view of a roller conveying module according to an embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1-2, an embodiment of the present invention discloses a sorting device 100, which includes a frame 1, a driving mechanism 2 connected to the frame 1, and a roller transmission mechanism 3 connected to the driving mechanism 2, wherein the roller transmission mechanism 3 is used for transmitting objects, and the driving mechanism 2 is used for driving the roller transmission mechanism 3 to operate.

Referring to fig. 3-4 and fig. 11, as an improved manner of the present embodiment, the roller conveying mechanism 3 includes a plurality of roller conveying modules 31 arranged in a plurality of rows and a plurality of columns, each roller conveying module 31 includes a driving shaft 311, a roller assembly 312, a transmission mechanism 313 installed between the driving shaft 311 and the roller assembly 312 for driving the roller assembly 312 to rotate along with the driving shaft 311, and a first bevel gear 314 installed on the driving shaft 311; the driving mechanism 2 comprises a motor 21, a plurality of transmission assemblies 22 respectively used for being correspondingly connected with the plurality of roller conveying modules 31 one by one, a first belt transmission assembly 23 used for driving one row of transmission assemblies 22 to synchronously rotate, and a plurality of second belt transmission assemblies 24 used for respectively driving each row of transmission assemblies 22 to synchronously rotate one by one, wherein the motor 21 is connected with any one of the transmission assemblies 22, and each transmission assembly 22 comprises a second bevel gear 221 meshed with a first bevel gear 314.

In this embodiment, the first belt transmission assembly 23 is arranged to drive one row of the transmission assemblies 22 to rotate synchronously, the plurality of second belt transmission assemblies 24 are arranged to drive the rows of the transmission assemblies 22 to rotate synchronously one by one, the transmission mechanism 313 is installed between the driving shaft 311 and the roller assembly 312 to drive the roller assembly 312 to rotate along with the driving shaft 311, and then the first bevel gear 314 is installed on each driving shaft 311, and each transmission assembly 22 includes the second bevel gear 221 meshed with the first bevel gear 314. Thus, when the motor 21 rotates, all the transmission assemblies 22 are driven to synchronously rotate by the first belt transmission assembly 23 and the second belt transmission assembly 24, the transmission assemblies 22 drive all the driving shafts 311 to synchronously rotate by the engaged first bevel gear 314 and the second bevel gear 221, the driving shafts 311 drive all the roller assemblies 312 to synchronously rotate by the transmission mechanism 313, and the synchronously rotating roller assemblies 312 convey articles. The driving mechanism 2 and the roller conveying mechanism 3 are simple in structure and compact in matching, and cost can be effectively reduced to obtain larger market space.

Referring to fig. 5, as an improvement of the present embodiment, a row of transmission assemblies located at the edge of each row of transmission assemblies 22 is defined as a first row of transmission assemblies 22a, a first pulley transmission assembly 23 is used for driving the first row of transmission assemblies 22a to rotate synchronously, and a motor 21 is connected to any one of the first row of transmission assemblies 22 a. Preferably, the motor 21 is connected to either one of the two transmission assemblies of the first row of transmission assemblies 22a at both ends. By arranging the motor 21 to be connected with one of the transmission assemblies 22 at the two ends of the first row of transmission assemblies 22a, when the motor 21 rotates and transmits the transmission assemblies 22 at the tail ends of each row of transmission assemblies, the transmission links are fewer, the transmission efficiency is high, and the requirements on the motor 21 can be reduced.

Referring to fig. 3-4, as an improvement of the present embodiment, the first belt transmission assembly 23 includes a first belt 231 and a plurality of first belt pulleys 232, the plurality of first belt pulleys 232 are correspondingly and fixedly mounted on the first row of transmission assemblies 22a arranged in a row one by one, and the first belt 231 is disposed around the plurality of first belt pulleys 232; each second belt transmission assembly 24 comprises a second belt 241 and a plurality of second belt wheels 242, the plurality of second belt wheels 242 are fixedly mounted on a row of transmission assemblies 22 arranged in a row in a one-to-one correspondence manner, and the second belt 241 surrounds the plurality of second belt wheels 242. It is understood that the plurality of first pulleys 232 are not limited to be fixedly mounted on the first row of transmission assemblies 22a arranged in a row in a one-to-one correspondence, for example, it is also possible that the plurality of first pulleys 232 are fixedly mounted on the row of transmission assemblies 22 arranged in other rows in a one-to-one correspondence.

Referring to fig. 5, as an improvement of the present embodiment, the driving mechanism 2 further includes a base plate 25 and a plurality of tensioning mechanisms 26 for adjusting the tension of the first belt 231 and the tension of the second belt 241, and the tensioning mechanisms 26 are adjustably mounted on the base plate 25. By arranging the tensioning mechanism 26, the tensity of the first belt 231 and the second belt 241 can be adjusted, so that the first belt 231 and the second belt 241 are better attached to the first belt pulley 232 and the second belt pulley 242, the first belt 231 and the second belt 241 are not easy to slip, and the transmission is more stable.

Referring to fig. 7, as an improvement of the present embodiment, each tensioning mechanism 26 includes a supporting plate 261 and a plurality of rotating wheel assemblies 262 rotatably mounted on the supporting plate 261, at least two kidney-shaped holes 2611 are opened on the supporting plate 261, the supporting plate 261 is adjustably mounted on the base plate 25 through the cooperation of the kidney-shaped holes 2611 and the bolt assemblies, and the rotating wheel assemblies 262 press the first belt 231 and the second belt 241 from the outer side of the first belt 231 and the outer side of the second belt 241.

As an improvement of this embodiment, each rotating wheel assembly 262 includes a rotating wheel 2621, a first bearing 2622 and a snap spring 2623, the supporting plate 261 is provided with a number of protruding columns 2612 equal to the number of the rotating wheel assemblies 262, each protruding column 2612 is provided with a step 2613, the first bearing 2622 is sleeved outside the protruding column 2612, the rotating wheel 2621 is sleeved outside the first bearing 2622, and the snap spring 2623 is clamped at one end of the protruding column 2612 away from the supporting plate 261.

Referring to fig. 6, as an improvement of the present embodiment, each transmission assembly 22 further includes a rotating shaft 222, a second bevel gear 221 is installed at one end of the rotating shaft 222, a first pulley 232 and a second pulley 242 are sleeved outside the rotating shaft 222, the first pulley 232 is disposed on one side of the rotating shaft 222 far away from the second bevel gear 221, and the second pulley 242 is disposed between the second bevel gear 221 and the first pulley 232.

Referring to fig. 3, as a modified manner of this embodiment, the driving mechanism 2 further includes a coupler 27, and the motor 21 includes an output shaft, and the output shaft is connected to one end of one of the rotating shafts 222, which is far from the second bevel gear 221, through the coupler 27.

Referring to fig. 8, as an improvement of the present embodiment, the driving mechanism 2 further includes a plurality of bearing blocks 28 and a plurality of second bearings 29, each bearing block 28 is fixedly installed on the substrate 25, the second bearings 29 are embedded in the bearing blocks 28, and the rotating shaft 222 passes through the second bearings 29. By providing the second bearing 29, the resistance of the rotating shaft 222 in the rotating process is small, the rotation is smooth, and the driving mechanism 2 operates stably.

As a modification of this embodiment, two second bearings 29 are provided, two second bearings 29 are embedded in the bearing seat 28, and the rotating shaft 222 passes through the two second bearings 29. By arranging the two second bearings 29, the stress on the rotating shaft 222 is more balanced, and the rotating shaft rotates smoothly.

Specifically, a through hole 251 is formed in the substrate 25, each bearing seat 28 includes an installation portion 281 and a cylindrical portion 282, the cylindrical portion 282 is inserted into the through hole 251, the installation portion 281 is connected with the substrate 25 through a bolt assembly, a bearing hole 283 is formed in the bearing seat 28 and penetrates through the installation portion 281 and the cylindrical portion 282, the two second bearings 29 are all inserted into the bearing hole 283, and the rotating shaft 221 is inserted through the two second bearings 29.

As a modification of the present embodiment, the first pulley 232 and the second pulley 242 are respectively disposed on both sides of the bearing housing 28. By arranging the first belt pulley 232 and the second belt pulley 242 on two sides of the bearing seat 28 respectively and taking the second bearing 29 as a fulcrum, two sides of the rotating shaft 222 are stressed, and the stress is more balanced relative to the stress on a single side, which is beneficial to the smooth operation of the mechanism.

Referring to fig. 9-11, as an improvement of the present embodiment, the roller assembly 312 includes a first rotating shaft 3121 disposed above the driving shaft 311, a second rotating shaft 3122 disposed on one side of the first rotating shaft 3121, a third rotating shaft 3123 disposed on the other side of the first rotating shaft 3121, two first rollers 3124 mounted on the first rotating shaft 3121 at intervals, a second roller 3125 mounted on the second rotating shaft 3122 and located between the two first rollers 3124, and a third roller 3126 mounted on the third rotating shaft 3123 and located between the two first rollers 3124 and disposed opposite to the second roller 3125.

Preferably, the central axis of the first rotating shaft 3121, the central axis of the second rotating shaft 3122, and the central axis of the third rotating shaft 3123 are on the same horizontal plane.

Preferably, the central axis of the drive shaft 311 is located directly below the central axis of the first rotation shaft 3121.

Preferably, a connection line of the center points of the two first rollers 3124, the center point of the second roller 3125, and the center point of the third roller 3126 is a diamond shape.

As a modification of the present embodiment, the transmission mechanism 313 includes a first transmission assembly 313a and a second transmission assembly 313b, the first transmission assembly 313a is drivingly connected between the driving shaft 311, the first rotating shaft 3121 and the second rotating shaft 3122 for driving the first rotating shaft 3121 and the second rotating shaft 3122 to synchronously rotate with the driving shaft 311; the second transmission assembly 313b is in transmission connection between the first rotating shaft 3121 and the third rotating shaft 3123 or between the second rotating shaft 3122 and the third rotating shaft 3123, so as to drive the third rotating shaft 3123 to rotate synchronously with the first rotating shaft 3121 or the second rotating shaft 3122.

As a modification of this embodiment, the first transmission assembly 313a and the second transmission assembly 313b are respectively located at both axial sides of the third roller 3126. Through this mode of setting, two first gyro wheels 3124, second gyro wheel 3125 and third gyro wheel 3126 can the symmetric distribution for the structure of whole roller conveying module 31 is compacter, can effectively reduce the size of roller conveying module 31 simultaneously.

As a modification of the present embodiment, the first transmission assembly 313a includes a third belt 3131 and three third belt pulleys 3132, the three third belt pulleys 3132 are respectively sleeved outside the driving shaft 311, the first rotating shaft 3121 and the second rotating shaft 3122, and the third belt 3131 surrounds the three third belt pulleys 3132; the second transmission assembly 313b includes a fourth belt 3133 and two fourth belt pulleys 3134, the two fourth belt pulleys 3134 are respectively sleeved outside the second rotating shaft 3122 and the third rotating shaft 3123, and the fourth belt 3133 surrounds the two fourth belt pulleys 3134.

As an improvement of the present embodiment, each roller transmission module 31 further includes a base 315, a cover 316, and two first side plates 317, the base 315 has a first surface 3151 and a second surface 3152 opposite to the first surface 3151, the two first side plates 317 are disposed on the first surface 3151 at intervals, the driving shaft 311, the first rotating shaft 3121, the second rotating shaft 3122, and the third rotating shaft 3123 are rotatably mounted between the two first side plates 317, the cover 316 is connected to a side of the first side plate 317 away from the base 315, four openings 3161 are disposed on the cover 316 at intervals, and the two first rollers 3124, the second roller 3125, and the third roller 3126 are partially exposed outside one opening 3161 respectively.

Specifically, the roller conveying module 31 further includes two first bearings 501, the two first side plates 317 are respectively provided with first bearing holes 3171, the two first bearings 501 are respectively embedded in the two first bearing holes 3171, two ends of the first rotating shaft 3121 are respectively inserted into the two first bearings 501, and the first rotating shaft 3121 is rotatably installed between the two first side plates 317 through the two first bearings 501.

Specifically, the roller transmission module 40 further includes two second bearings 502, the two first side plates 317 are respectively provided with a second bearing hole 3172, the two second bearings 502 are respectively embedded in the two second bearing holes 3172, two ends of the second rotating shaft 3122 are respectively inserted into the two second bearings 502, and the second rotating shaft 3122 is rotatably installed between the two first side plates 317 through the two second bearings 502.

Specifically, the roller conveying module 40 further includes two third bearings 503, the two first side plates 317 are respectively provided with third bearing holes 3173, the two third bearings 503 are respectively embedded in the two third bearing holes 3173, two ends of the third rotating shaft 3123 are respectively inserted into the two third bearings 503, and the third rotating shaft 3123 is rotatably installed between the two first side plates 317 through the two third bearings 503.

Specifically, the roller transmission module 40 further includes two fourth bearings 504, wherein the two first side plates 317 are respectively provided with a fourth bearing hole 3174, the two fourth bearings 504 are respectively embedded in the two fourth bearing holes 3174, two ends of the driving shaft 311 are respectively inserted into the two fourth bearings 504, and the driving shaft 311 is rotatably installed between the two first side plates 317 through the two fourth bearings 504.

As an improvement of this embodiment, the base 315 has a through hole 3153 formed between the two first side plates 317, and the second bevel gear 221 is disposed through the through hole 3153 and meshed with the first bevel gear 314. This arrangement can further make the roller conveying module 31 more compact and reduce the occupied space.

As a modification of the present embodiment, each roller conveying module further includes two reinforcing columns 318, the two reinforcing columns 318 are disposed between the two first side plates 317, and two ends of the two reinforcing columns 318 are respectively connected to the two first side plates 317. By providing two reinforcing posts 318, the connection between the two first side plates 317 is more stable, and the connection between the entire roller conveying module 31 is more stable.

As an improvement mode of this embodiment, the roller conveying mechanism 3 further includes a mounting plate 32, a top plate 33 disposed at an interval with the mounting plate 32, and four second side plates 34 protruding from the edge of the mounting plate 32 for connecting the mounting plate 32 and the top plate 33, the mounting plate 32, the top plate 33, and the second side plates 34 enclose and form an accommodating cavity for accommodating the plurality of roller conveying modules 31, the top plate 33 is provided with a plurality of avoiding holes 331, and each roller conveying module 31 is partially exposed outside the accommodating cavity through the avoiding holes 331.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The sorting device is characterized by comprising a roller conveying mechanism for conveying articles and a driving mechanism for driving the roller conveying mechanism to operate; the roller conveying mechanism comprises a plurality of roller conveying modules which are arranged in a plurality of rows and a plurality of columns, and each roller conveying module comprises a driving shaft, a roller assembly, a transmission mechanism which is installed between the driving shaft and the roller assembly in a transmission mode and used for driving the roller assembly to rotate along with the driving shaft, and a first bevel gear installed on the driving shaft; the driving mechanism comprises a motor, a plurality of transmission assemblies, a first belt transmission assembly and a plurality of second belt transmission assemblies, wherein the transmission assemblies are respectively used for being in one-to-one corresponding connection with the roller wheel transmission mechanisms, the first belt transmission assemblies are used for driving one of the transmission assemblies to synchronously rotate, the second belt transmission assemblies are used for respectively driving each row of the transmission assemblies to synchronously rotate, the motor is connected with any one of the transmission assemblies, and each transmission assembly comprises a second bevel gear meshed with the first bevel gear.

2. A sorter as in claim 1 wherein the edge-located one of the rows of drive assemblies is defined as a first row of drive assemblies, the first pulley drive assembly is configured to rotate the first row of drive assemblies synchronously, and the motor is connected to either of the two drive assemblies at opposite ends of the first row of drive assemblies.

3. The sorter of claim 1 wherein the first belt drive assembly includes a first belt and a plurality of first pulleys, the plurality of first pulleys being fixedly mounted one-to-one on a column of the drive assemblies arranged in a column, the first belt being disposed around the plurality of first pulleys; every second belt drive assembly includes second belt and a plurality of second belt pulley, a plurality of second belt pulley one-to-one fixed mounting is in the one of in-line setting on the drive assembly, the second belt winding a plurality of second belt pulley sets up.

4. A sorter as in claim 3 wherein the drive mechanism further includes a base plate and a plurality of tensioning mechanisms for adjusting the first belt tension and the second belt tension, the tensioning mechanisms being adjustably mounted on the base plate.

5. The sorter as in claim 4 wherein each of the tensioning mechanisms comprises a support plate and a plurality of roller assemblies rotatably mounted to the support plate, the support plate having at least two kidney holes formed therein, the support plate being adjustably mounted to the base plate by engagement of the kidney holes with a bolt assembly, the roller assemblies compressing the first and second belts from the outside of the first belt and the outside of the second belt.

6. A sorter as in claim 3 wherein each of the drive assemblies further comprises a shaft, the second bevel gear is mounted at one end of the shaft, the first pulley and the second pulley are sleeved outside the shaft, the first pulley is disposed at a side of the shaft away from the second bevel gear, and the second pulley is disposed between the second bevel gear and the first pulley.

7. A sorting device according to any one of claims 1 to 6, wherein the roller assembly comprises a first rotating shaft disposed above the driving shaft, a second rotating shaft disposed on one side of the first rotating shaft, a third rotating shaft disposed on the other side of the first rotating shaft, two first rollers mounted on the first rotating shaft at intervals, a second roller mounted on the second rotating shaft and located between the two first rollers, and a third roller mounted on the third rotating shaft and located between the two first rollers and disposed opposite to the second roller, and the driving mechanism is mounted between the driving shaft, the first rotating shaft, the second rotating shaft and the third rotating shaft in a transmission manner.

8. The sorting device according to claim 7, wherein the transmission mechanism comprises a third belt, a fourth belt, three third belt pulleys and two fourth belt pulleys, the three third belt pulleys are respectively sleeved outside the driving shaft, the first rotating shaft and the second rotating shaft, the third belt is wound outside the three third belt pulleys, the two fourth belt pulleys are respectively sleeved outside the second rotating shaft and the third rotating shaft, and the fourth belt is wound outside the two fourth belt pulleys.

9. A sorter as in claim 8 wherein the third belt and the fourth belt are on respective axial sides of the third roller.

10. The sorter as claimed in claim 8 wherein each roller conveyor module further comprises a base, a cover plate and two first side plates, the base having a first surface and a second surface opposite to the first surface, the two first side plates being spaced apart from each other and disposed on the first surface, the drive shaft, the first shaft, the second shaft and the third shaft being rotatably mounted between the two first side plates, the cover plate being connected to the first side plate on a side thereof away from the base, the cover plate having four openings spaced apart from each other, and each of the two first rollers, the second roller and the third roller being partially exposed through one of the openings.