CN210138848U

CN210138848U - Falling bag type sorting system

Info

Publication number: CN210138848U
Application number: CN201920902216.5U
Authority: CN
Inventors: 陈宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-03-13
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses a bag formula letter sorting system falls, it includes tray system, transfer system, partial shipment system. The tray system comprises an annular bracket, a chain transmission mechanism and a plurality of object supporting platforms. The object supporting platform comprises two openable supporting plates, the first sides of the two supporting plates are connected through a connecting rod mechanism, the second side closing parts of the two supporting plates are lapped on the supporting part of the swing hook, and the upper end part of the swing hook is rotatably arranged on a frame of the object supporting platform. The transfer system comprises a delivery conveying line, a plurality of conveying platforms are arranged on two sides of the delivery conveying line respectively, and sorting baskets are placed on the conveying platforms to receive articles falling from the article supporting platforms. The outside of conveying platform is equipped with transports the platform. The sub-packaging system comprises a goods receiving conveying line and three goods distributing conveying lines, one side of each goods distributing conveying line is correspondingly provided with a boxing operation platform, and an empty basket conveying line is arranged between the other side of each goods distributing conveying line and the transfer platform. The annular support is provided with a plurality of supporting plate opening mechanisms, and the supporting plate opening mechanisms are positioned above the conveying platform.

Description

Falling bag type sorting system

Technical Field

The utility model relates to a parcel automatic sorting equipment's technical field, in particular to bag formula letter sorting system falls.

Background

Express delivery trade development is different day by day, and the quantity and the kind of parcel letter sorting are more and more, especially smallclothes letter sorting, and traditional manual sorting has can't satisfy the demand in market, and the letter sorting operation mode is advancing towards automatic intelligent letter sorting direction. Currently, the mainstream automatic sorting system is, for example, cross belts, rollers, etc.

Conventional sortation systems typically provide a sortation mechanism, such as a steerable wheel, in a region of the conveyor belt, whereby the sortation mechanism changes the direction of travel of the articles as they are conveyed to the region. The mode of this kind of letter sorting is inefficient and the structure setting between letter sorting mechanism and the conveyer belt is comparatively loaded down with trivial details. To this defect, current traditional letter sorting system has carried out corresponding improvement, has developed the bag formula letter sorting system that falls, through set up the dolly of letter sorting (or little platform) that can follow the motion of letter sorting direction removal on letter sorting platform, the dolly of letter sorting comprises two turning over boards that can overturn each other and open or close, and when the dolly of letter sorting reachd the assigned position, turns over the board and opens for article fall in letter sorting basket or the sack of its below under the action of gravity.

Compare with traditional letter sorting system, the letter sorting process of falling bag formula letter sorting system is simple, and is efficient. But it also has certain problems. Firstly, the opening mode of the turning plate of the sorting trolley of the falling bag type sorting machine adopts chain transmission or gear transmission, the matching requirement between the transmission mechanisms for opening and closing the turning plate is high, and the transmission stability is poor, so that the falling bag type sorting system cannot be widely introduced and is only suitable for sorting small articles. Secondly, the turnover process of letter sorting basket or goods bag after the letter sorting needs the manual work volume big, and turnover efficiency is slow, and its reason lies in, goods bag or material frame generally need set up in letter sorting platform below or the outside, need make article slant fall into in goods bag or letter sorting basket with the help of the slide when setting up in the outside. When the goods in the goods bag or the sorting basket are filled with the goods, the sorting personnel are required to convey the goods in the goods bag to the next procedure for subpackaging along with the goods bag, and replace the empty goods bag or the empty sorting basket, so that the turnover speed of the goods bag or the sorting basket is low, the time and the labor are consumed, and the sorting efficiency of the goods is influenced to a certain extent.

Based on the above drawbacks, the existing drop bag type sorting system still needs to be improved.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model discloses a main objective provides a bag formula letter sorting system falls, and it is applicable to the letter sorting of all kinds of parcels, article, and sorts efficiently, and degree of automation is high, and the manual work volume is little, greatly reduced cost of labor and manual work volume.

In order to achieve the above object, the utility model provides a bag formula letter sorting system falls, it includes tray system, transfer system, partial shipment system. The tray system comprises an annular support, a chain transmission mechanism and a plurality of object supporting platforms which are arranged along the circumferential direction of the annular support at intervals. The object supporting platform comprises a frame, two openable supporting plates are arranged on the frame, the first sides of the two supporting plates are connected through a connecting rod mechanism, a swing hook is arranged on one side of the frame corresponding to the second side of the supporting plates, the upper end portion of the swing hook is rotatably arranged on the frame, a bearing portion is arranged at the lower end of the swing hook, and a closed port of each of the two supporting plates is pressed on the bearing portion of the swing hook. The chain of the chain transmission mechanism is arranged on the inner side of the annular bracket, and the frame of each object supporting platform is connected to the outer side of the chain through a connecting piece.

The transfer system comprises a delivery conveying line, the delivery conveying line is located below the annular support, a plurality of conveying platforms are arranged on two sides of the delivery conveying line respectively, the conveying platforms are located below the object supporting platforms, and sorting baskets are placed on the conveying platforms to receive objects falling from the object supporting platforms. The outer side of the conveying platform is provided with a track arranged along the arrangement direction of the conveying platform, and the track is provided with a transfer platform capable of moving back and forth along the length of the track.

The subpackaging system comprises a receiving conveying line, wherein a feeding end of the receiving conveying line is in butt joint with a discharging conveying line, three distributing conveying lines distributed in a T shape are arranged at the discharging end of the discharging conveying line, and a first jacking transfer mechanism is arranged below the feeding end of the distributing conveying line located in the middle. One side of each goods distribution conveying line is correspondingly provided with a boxing operation platform. An empty basket conveying line is arranged between the other side of the goods distribution conveying line and the rail, and a second jacking transfer mechanism is arranged at the position, opposite to the rail, of the empty basket conveying line.

The annular support is provided with a plurality of supporting plate opening mechanisms, and the supporting plate opening mechanisms are positioned above the conveying platform.

Preferably, the annular support below is equipped with canceling release mechanical system, and it includes: the reset plate is positioned below the object supporting platform and provided with a horizontal plane and an inclined plane, the inclined plane inclines towards the horizontal plane along the conveying direction of the chain, and the two supporting plates in an open state can be closed upwards along the inclined planes when passing through the reset plate. The hook supporting block is arranged on the outer side of the annular support and is provided with a horizontal supporting surface and an inclined supporting surface, the inclined supporting surface inclines towards the horizontal supporting surface along the chain conveying direction, a swing hook of the object supporting platform can swing upwards along the inclined supporting surface through the hook supporting block, and the swing hook swings downwards after passing through the horizontal supporting surface and supports the closed supporting plate.

Preferably, the bottom of the supporting plate on one side of the supporting platform is provided with a rolling sleeve.

Preferably, the supporting plate opening mechanism is arranged on the outer periphery side of the annular bracket, and the bearing part of the swing hook extends towards the supporting plate opening mechanism to form an outer edge part.

Preferably, the supporting plate opening mechanism comprises a blocking block and a driver for driving the blocking block to move up and down, the driver is arranged on the annular bracket, and the blocking block is arranged at the output end of the driver.

Preferably, four rollers are arranged at the bottom of the frame of the object supporting platform.

Preferably, one side of the conveying platform opposite to the delivery conveying line is provided with a sliding plate which is inclined towards the delivery conveying line.

Specifically, first jacking moves carries mechanism and first jacking moves and carries the mechanism and include the jacking cylinder, is equipped with the backup pad on the jacking cylinder output shaft, is equipped with both sides board in the backup pad, is equipped with conveyer on each curb plate, and the backup pad bottom surface is equipped with the motor, and conveyer passes through transmission shaft and chain drive with the motor and is connected.

Preferably, the goods-separating conveying line is an unpowered roller line.

The utility model provides a falling bag type sorting system, two support plates of a supporting platform adopt swing hooks to support a support plate closing opening, the load which can be borne by the support plates is large, and the falling bag type sorting system can bear goods of various specifications and sizes, and has wide application range; only a supporting plate opening mechanism capable of enabling the swing hook to swing needs to be arranged, when the object supporting platform loses the support of the swing hook, the supporting plate can be automatically opened under the action of gravity, and the releasing mode is simple and quick; the sorted articles can be quickly conveyed out by arranging the conveying platform and the delivery conveying line below the article supporting platform; the goods distribution conveying line and the boxing operation platform are arranged at the goods outlet end of the goods outlet conveying line, so that workers can conveniently and directly perform boxing operation on classified goods; simultaneously set up empty basket transfer chain between branch goods transfer chain and transportation platform for form empty letter sorting basket turnover circulation between transportation system and the partial shipment system, the workman can directly retransfer the empty letter sorting basket that empty leaving to the conveying platform again on like this, improves the turnover efficiency of high letter sorting basket greatly, thereby need not to purchase a large amount of letter sorting baskets, can also improve the efficiency of article letter sorting simultaneously.

The utility model is suitable for a sorting of all kinds of parcels, article, and sort efficiently, degree of automation is high, and the manual work volume is little, greatly reduced cost of labor and manual work volume.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a bag-type sorting system of the present invention;

FIG. 2 is an overall schematic view of a tray system;

FIG. 3 is a partial schematic view of a tray system;

FIG. 4 is a schematic diagram of the structure of the transfer system;

FIG. 5 is a schematic diagram of the dispensing system;

FIG. 6 is a schematic structural view of the platform;

FIG. 7 is a schematic structural view of a link mechanism;

FIG. 8 is a schematic view of the installation position of the pallet opening mechanism;

FIG. 9 is a schematic view of the opening mechanism of the tray opening mechanism opening the tray platform;

FIG. 10 is a schematic view of the mounting position of the reset mechanism;

FIG. 11 is a schematic view of the object supporting platform being reset along the reset plate;

FIG. 12 is a schematic view of the swing hook of the object supporting platform swinging along the unhooking block;

fig. 13 is a schematic structural diagram of the first jacking transfer mechanism.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

As shown in fig. 1, in the embodiment of the present invention, the bag-dropping type sorting system includes a tray system 100, a transferring system 200, and a sub-packaging system 300.

The tray system 100 includes an annular support 110, a chain transmission mechanism 130, and 48 object supporting platforms 120 arranged at intervals along the circumference of the annular support 110. The supporting platform 120 includes a frame 121, two openable and closable supporting plates 122 are disposed at the bottom of the frame 121, and first sides of the two supporting plates 122 are connected by a link mechanism 123, so that the two supporting plates 122 can be opened or closed at the same time. A swing hook 124 is arranged on one side of the frame 121 corresponding to the second side of the supporting plate 122, the upper end of the swing hook 124 is rotatably arranged on the frame 121 through a rotating shaft, and the swing hook 124 can swing relative to the frame 121. The swing hook 124 has a support portion 124a at a lower end thereof, and when the support plate 122 is in the closed state, the closed portion of the two support plates 122 is pressed against the support portion 124a of the swing hook 124, so that the two support plates 122 are in the closed state. The chain transmission mechanism 130 is disposed inside the annular bracket 110, and includes a driving sprocket 131, a driven sprocket 132, and a power motor (not shown), wherein the driving sprocket 131 and the driven sprocket 132 are in transmission connection via a chain 133. The power motor is in transmission connection with the driving chain wheel 131. The frame 121 of each pallet platform 120 is connected to the outside of the chain 133 by a connecting member.

The transfer system 200 includes a delivery conveying line 210, the delivery conveying line 210 is located below the annular support 110, two sides of the delivery conveying line are respectively provided with a plurality of conveying platforms 220, specifically, 8 conveying platforms 220 are arranged below the straight line section on the outer side of the annular support 110, and 12 conveying platforms 220 are arranged below the straight line section on the inner side of the annular support. Conveying platform 220 is located below product holding platform 120, and sorting basket 400 is placed on conveying platform 220 to receive products falling from product holding platform 120. The outer side of the transfer platform 220 is provided with a track 230 arranged along the arrangement direction of the transfer platform 220, and the track 230 is provided with a transfer platform 231 capable of reciprocating along the length of the track. Specifically, the track 230 located outside the ring support 110 is provided with 1 transfer platform 231, and the track located inside the ring support 110 is provided with 2 transfer platforms 231.

The ring support 110 is provided with 12 pallet opening mechanisms 140, and each pallet opening mechanism 140 is disposed above its corresponding transfer platform 220. When the holding platform 120 moves above a specific conveying platform 220, the corresponding tray opening mechanism 140 above the conveying platform 220 can make the swing hook 124 of the holding platform 120 swing, so that the closed tray 122 loses the support of the swing hook 124, and is opened under the action of gravity, and the articles on the holding platform 120 fall into the sorting basket 400 of the conveying platform 220.

The sub-packaging system 300 includes a receiving conveyor line 310, a receiving end of which is connected to the discharging conveyor line 210, three T-shaped distributing conveyor lines 320 disposed at a discharging end of which are disposed, and a first jacking transfer mechanism 321 disposed below the receiving end of the distributing conveyor line 320 located at the middle position. One side of each goods distribution conveying line 320 is correspondingly provided with a boxing operation platform 330, and workers can perform boxing operation on classified goods on the boxing operation platforms 330. By adopting the T-shaped distribution goods distribution conveying lines 320, when the goods receiving conveying lines 310 convey the sorting baskets 400 to the middle goods distribution conveying lines, the sorting baskets 400 can be conveyed to the goods distribution conveying lines 320 on two sides by driving the jacking transfer mechanism, so that one-to-many boxing work is realized, and the boxing efficiency is improved. An empty basket conveying line 340 is arranged between the other side of the goods distribution conveying line 320 and the track 230, and a second jacking transfer mechanism 341 is arranged at the position of the empty basket conveying line 340 opposite to the track 230. After the vanning workman vanning the good article of classification, the empty sorting basket that idle gets off can directly transport one side of track 230 through empty basket transfer chain 340, and the rethread second jacking is carried the mechanism 341 and is transported the transport platform 231 on the track 230 on, is replenished empty sorting basket to idle conveying platform 220 on by transporting platform 231 to realize the quick turnover of sorting basket.

Specifically, in the present embodiment, the shipment line 210, the receiving line 310, and the empty basket line 340 all use powered roller lines.

The utility model provides a falling bag type sorting system, two supporting plates 122 of a supporting platform 120 adopt a swing hook 124 to support a supporting plate closing opening, the supporting plate 122 can bear a large load, can bear articles of various specifications and sizes, and has a wide application range; only the supporting plate opening mechanism 140 which can make the swing hook swing is needed to be arranged, when the object supporting platform 120 loses the support of the swing hook 124, the supporting plate can be automatically opened under the action of gravity, and the releasing mode is simple and quick; by arranging the conveying platform 220 and the delivery conveying line 210 below the object supporting platform 120, classified objects can be quickly conveyed out; the goods distribution conveying line 320 and the boxing operation platform 330 are arranged at the goods outlet end of the goods outlet conveying line 210, so that workers can conveniently and directly perform boxing operation on classified goods; set up empty basket transfer chain 340 between branch goods transfer chain 320 and transportation platform 231 simultaneously for form empty letter sorting basket turnover circulation between transportation system 200 and the partial shipment system 300, the workman can directly be with empty letter sorting basket that comes out of like this and pass back to the transfer platform again on, improve the turnover efficiency of height letter sorting basket greatly, thereby need not to purchase a large amount of letter sorting baskets, can also improve the efficiency of article letter sorting simultaneously.

The utility model discloses an in the embodiment, first jacking moves and carries the same mechanism of adoption that mechanism 321 and second jacking moved and carry mechanism 341 to first jacking moves and carries mechanism 321 as an example, and it includes jacking cylinder 3211, is equipped with backup pad 3212 on jacking cylinder 3211's the output shaft, is equipped with the both sides board on the backup pad 3212, is equipped with conveyer 3213 on each curb plate, and backup pad 3212 bottom surface is equipped with the motor, and conveyer 3213 passes through the transmission shaft with the motor and is connected with chain drive. After the article is conveyed to the jacking transfer mechanism through the conveying line, the jacking cylinder drives the supporting plate to ascend, so that the conveying belt supports the article from the conveying line and drives the article to move along the conveying direction of the belt. It should be noted that the first lift-up transfer mechanism 321 and the second lift-up transfer mechanism 341 may be implemented by a device having a lift-up transfer function used in an existing conveyor line.

Preferably, on the basis of the above embodiment, the goods-distributing conveying line 320 is an unpowered roller line. When the receiving conveyor line 310 transports the sorting basket 400 to the input end of the distribution conveyor line 320 at the intermediate position, it has a certain initial speed, which enables the sorting basket 400 to move a certain distance on the distribution conveyor line 320, and enables the worker to directly take the sorting basket 400 to pack the items in the sorting basket by setting a reasonable length of the distribution conveyor line 320. When the sorting baskets 400 on the receiving conveying lines 310 need to be transferred to the goods distribution conveying lines 320 on the two sides, the sorting baskets 400 are lifted away from the goods distribution conveying lines 320 in the middle position through the first jacking transfer mechanism 321, and the sorting baskets 3213 can be transferred to the goods distribution conveying lines 320 on the two sides by driving the conveying belt 3213 to rotate forwards or reversely. Similarly, the conveyor belts 3213 impart an initial velocity to the sorting basket 400 during transport such that the sorting basket 400 may move a distance on the dispensing conveyor without power to reach the location of the boxing worker. The unpowered roller line is adopted as a goods distribution conveying line, so that the manufacturing cost of the sorting system is reduced to a certain extent.

In an embodiment of the present invention, a reset mechanism is disposed below the ring-shaped support 110, and includes a reset plate 151 and a hook block 152. The returning plate 151 is located below the tray table 120, and has a horizontal surface 151a and an inclined surface 151b, and the inclined surface 151b is inclined toward the horizontal surface 151a in the chain transferring direction. When the pallet 122 of the object supporting platform 120 in the opened state reaches the upper side of the reset plate 151, the pallet 122 on one side of the object supporting platform 120 close to the reset plate 151 rotates upward along the inclined surface 151b of the reset plate 151, the pallet 122 on the other side of the object supporting platform 120 rotates upward simultaneously under the driving of the link mechanism 123, and when the pallet 122 on one side close to the reset plate 151 reaches the horizontal surface 151a of the reset plate 151, the opened two pallets 122 are closed.

The hooking block 152 is disposed on the ring support 110, and has a horizontal receiving surface 152a and an inclined receiving surface 152b, and the inclined receiving surface 152b is inclined toward the horizontal receiving surface 152a along the chain conveying direction. When the support plate 122 of the object supporting platform 120 in the opened state reaches above the reset plate 151, the swing hook 124 of the object supporting platform 120 simultaneously reaches the position of the hook supporting block 152, and contacts the inclined supporting surface 152b of the hook supporting block 152, and moves along the inclined surface of the inclined supporting surface 152b, and simultaneously swings upward along the inclined supporting surface 152 b. After the swing hook 124 continues to move to the horizontal support surface 152a, it moves along the horizontal support surface 152a for a certain time, during which the two support plates 122 are in a gradually closed state, and when the support plates 122 are close to being closed, the swing hook 124 simultaneously swings downward from being separated from the horizontal support surface 152a to a vertical state, so that the closed support plate 122 presses on the support part 124a of the swing hook 124 to maintain the closed state.

Preferably, on the basis of the above embodiment, the bottom of the supporting plate 122 on the side of the supporting platform 120 close to the reset plate 151 is provided with a rolling sleeve 125. When the supporting plate 122 of the object supporting platform 120 near the reset plate 151 approaches the inclined surface 151b of the reset plate 151, the rolling sleeve 125 contacts the inclined surface 151b of the reset plate 151 first, and the rolling sleeve 125 rolls on the inclined surface 151b instead of sliding in the moving process, so that sliding wear is reduced, and friction noise can be avoided.

In the preferred embodiment of the present invention, the pallet opening mechanism 140 is disposed on the outer peripheral side of the ring bracket 110, and the support portion 124a of the swing hook 124 extends toward the pallet opening mechanism 140 to form the outer edge portion 124 b. Specifically, the pallet opening mechanism 140 includes a stopper 141 and a driver 142 for driving the stopper 141 to move up and down, the driver 142 is disposed on the ring support 110, and the stopper 141 is disposed at an output end of the driver 142. When the tray platform 120 reaches the tray opening mechanism 140 at a designated position, the tray opening mechanism 140 prevents the swing hook 124 from moving with the tray platform 120 by driving the stopper 141 to ascend through the driver 142, so that the swing hook 124 swings upward.

In the present embodiment, the tray opening mechanism 140 is configured to allow the swing hook 124 to swing upward by blocking the movement tendency of the swing hook 124, and the structure is simple and easy to implement. And the mode that the swing hook 124 swings as the swing hook 124 moves along with the object supporting platform 120 is blocked, the supporting plate opening mechanism 140 is required to collide with the swing hook 124, and the damaged or failed supporting plate opening mechanism 140 is convenient to replace by arranging the supporting plate opening mechanism 140 on the outer side of the annular support 110.

In the preferred embodiment of the present invention, four rollers are provided at the bottom of the frame of the supporting platform 120. So that the carrier platform 120 can move smoothly on the ring support 110 in a high-speed motion to accommodate a high-speed sorting motion.

The utility model discloses a preferred embodiment, one side that conveying platform 220 is relative with shipment transfer chain 210 is equipped with the slide 221 that sets up to shipment transfer chain slope to on sorting basket 400 landing smoothly goes out shipment transfer chain 210, avoid sorting basket 400 to take place the phenomenon of card goods in the position that conveying platform 220 and shipment transfer chain 210 meet.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A drop bag sortation system, comprising:

a tray system, comprising: an annular support; the object supporting platforms are arranged along the circumferential direction of the annular support at intervals and comprise a frame, two openable supporting plates are arranged on the frame, first sides of the two supporting plates are connected through a connecting rod mechanism, one side of the frame, corresponding to the second side of the supporting plates, is provided with a swing hook, the upper end of the swing hook is rotatably arranged on the frame, the lower end of the swing hook is provided with a bearing part, and a closed port of each of the two supporting plates is lapped and pressed on the bearing part of the swing hook; the chain of the chain transmission mechanism is arranged on the inner side of the annular bracket, and the frame of each object supporting platform is connected to the outer side of the chain through a connecting piece;

the transfer system comprises a delivery conveying line, the delivery conveying line is positioned below the annular support, a plurality of conveying platforms are respectively arranged on two sides of the delivery conveying line, the conveying platforms are positioned below the object supporting platforms, and sorting baskets are placed on the conveying platforms to receive objects falling from the object supporting platforms; the outer side of the conveying platform is provided with a track arranged along the arrangement direction of the conveying platform, and the track is provided with a transfer platform capable of moving back and forth along the length of the track;

the subpackaging system comprises a receiving conveying line, wherein the feeding end of the receiving conveying line is butted with a discharging conveying line, three T-shaped distributing conveying lines are arranged at the discharging end of the receiving conveying line, and a first jacking transfer mechanism is arranged below the feeding end of the distributing conveying line in the middle; one side of each goods distribution conveying line is correspondingly provided with a boxing operation platform; an empty basket conveying line is arranged between the other side of the goods distribution conveying line and the track, and a second jacking and transferring mechanism is arranged at the position, opposite to the track, of the empty basket conveying line;

the annular support is provided with a plurality of supporting plate opening mechanisms, the supporting plate opening mechanisms are positioned above the conveying platform, and the supporting plate opening mechanisms can enable the swing hooks of the object supporting platform above the conveying platform to swing so as to open the supporting plates.

2. The drop bag sorting system of claim 1, wherein a return mechanism is provided below the ring support, comprising: the reset plate is positioned below the object supporting platform and provided with a horizontal plane and an inclined plane, the inclined plane inclines towards the horizontal plane along the conveying direction of the chain, and the two supporting plates in an open state can be closed upwards along the inclined planes when passing through the reset plate; the hook supporting block is arranged on the outer side of the annular support and provided with a horizontal supporting surface and an inclined supporting surface, the inclined supporting surface inclines towards the horizontal supporting surface along the chain conveying direction, a swing hook of the object supporting platform can swing upwards along the inclined supporting surface through the hook supporting block, and the swing hook swings downwards after passing through the horizontal supporting surface and supports the closed supporting plate.

3. A drop bag sortation system as claimed in claim 2, wherein a rolling sleeve is provided at the bottom of the pallet on one side of the pallet platform.

4. The drop bag sorting system of claim 1, wherein the pallet opening mechanism is disposed on an outer peripheral side of the ring support, and the support portion of the swing hook extends toward the pallet opening mechanism to form an outer edge portion.

5. The drop bag sortation system as claimed in claim 1, wherein said pallet opening mechanism includes a blocker and a driver for driving the blocker up and down, said driver being disposed on the ring support, said blocker being disposed at an output end of the driver.

6. A drop bag sortation system as claimed in claim 1, wherein four rollers are provided at the bottom of the frame of the pallet platform.

7. A drop bag sorting system as in claim 1 wherein the transfer platform is provided with a slide plate inclined toward the delivery line on a side opposite the delivery line.

8. The drop bag type sorting system according to claim 1, wherein the first lifting and transferring mechanism and the first lifting and transferring mechanism comprise a lifting cylinder, a support plate is provided on an output shaft of the lifting cylinder, two side plates are provided on the support plate, a conveyor belt is provided on each side plate, a motor is provided on a bottom surface of the support plate, and the conveyor belt and the motor are connected by a transmission shaft and a chain transmission.

9. A drop bag sorting system according to any one of claims 1-8, wherein the dispensing line is an unpowered roller line.