Roller deflection sorting device and logistics sorting system

Abstract

The present invention discloses a roller deflection sorting device and a logistics sorting system. The roller deflection sorting device comprises a frame, on which a group of sorting units are arranged. Each sorting unit includes a deflection seat. A group of rollers with parallel axes and equal heights are horizontally mounted on the deflection seat. The conveying surface formed by the rollers is higher than the deflection seat. The rollers are directly or indirectly driven by drive rollers parallel to their axes and driven by a power source. Each sorting unit can rotate about the longitudinal axis of its mounting seat and is connected to a deflection drive device that drives its rotation. By arranging a group of rollers on a deflection seat, this solution can effectively reduce the number of deflection seats, simplify the overall structure, and reduce the weight of the equipment. At the same time, friction drive is used to drive multiple rollers. This drive method is simple and easy to implement, does not interfere with the deflection of the rollers, and has good stability.

Description

Technical Field

[0001] The present invention relates to the field of logistics equipment, in particular to a roller deflection sorting device and a logistics sorting system. Background Art

[0002] The main cargo reversing methods in modern automated intelligent sorting systems include swing arm type, flip plate type, turntable type, push head type, slider type, deflection type, etc.

[0003] Among them, the deflection sorting specifically includes deflection wheels, deflection balls, deflection conveyor belts and the like. The deflection wheel type, such as the Chinese patent application number 201721094362.7, discloses a roller-type steering transfer machine, which is a deflection wheel type. The roller is rotatably arranged on a deflection seat, and the deflection seat is rotatable. The rotation of the deflection seat drives the rotation of the roller, thereby realizing the steering of the object passing through the roller.

[0004] The problem with this structure is that each roller requires a deflection seat. As the number of rollers increases, the number of deflection seats increases, leading to a complex and heavy structure. Furthermore, the special design of each deflection seat increases the gap between the deflection wheels, increasing the risk of material jamming.

[0005] In addition, in this structure, the roller is driven by connecting the second transmission shaft 71 through an O-ring. However, since the roller is fixed on the deflection seat and rotates with the deflection seat, the O-ring needs to be twisted and deformed after the roller is deflected, and the O-ring will not be able to continue to transmit torque after being twisted. As a result, the roller cannot continue to be driven by the O-ring to rotate after rotating with the deflection seat, and the transportation of items cannot be achieved. This design is obviously unreasonable.

[0006] At the same time, the deflection seat rotates through two bearings, but the bearings are of the type in which the inner and outer rings rotate relative to each other. The problem with this structure is that the bearings are prone to damage when they bear a large load.

[0007] The deflection belt type, such as the belt sorting disclosed in application number 201910207235.0, is achieved by arranging two belt sorting units on a deflection seat. Although this structure is beneficial to reducing the number of deflection seats, the drive of the belt conveyor is still through a roller drive structure similar to the above embodiment, and the above-mentioned problems also exist.

[0008] At the same time, the arrangement of the plurality of sorting units is unreasonable, and the gaps between adjacent sorting units are large, which increases the risk of material jamming. Summary of the Invention

[0009] The purpose of the present invention is to solve the above problems existing in the prior art and to provide a roller deflection sorting device and a logistics sorting system.

[0010] The purpose of the present invention is achieved through the following technical solutions:

[0011] A roller deflection sorting device includes a frame on which a group of sorting units are arranged, each sorting unit includes a deflection seat, a group of rollers with parallel axes and equal heights are horizontally arranged on the deflection seat, the height of the conveying surface formed by the rollers is higher than the top surface of the deflection seat, and the rollers are directly or indirectly driven by drive rollers that are parallel to their axes, driven by a power source and located on the deflection seat; each of the sorting units can rotate around the longitudinal axis of its mounting seat and is connected to a deflection drive device that drives its rotation.

[0012] Preferably, in the roller deflection sorting device, the sorting units are distributed in multiple rows or columns, the sorting units in two adjacent rows or columns are staggered, and the sorting units in odd rows or columns correspond one to one, and the sorting units in even rows or columns correspond one to one.

[0013] Preferably, in the roller deflection sorting device, a row or a column of sorting units is arranged on a carrier plate of the frame.

[0014] Preferably, in the roller deflection sorting device, auxiliary universal balls or universal wheels are provided at both ends of a row or column of sorting units with a smaller number.

[0015] Preferably, in the roller deflection sorting device, the lengths of parts of the roller are different, and the length of the roller in the middle area is greater than the lengths of the rollers on both sides.

[0016] Preferably, in the roller deflection sorting device, when there are two rollers, they are driven by a driving roller frictionally connected to them;

[0017] When there are three or four rotating rollers, the driving roller drives the plurality of rotating rollers via two transmission rollers frictionally connected to the driving roller.

[0018] Preferably, in the roller deflection sorting device, the driving roller directly drives the roller, and the driving roller is frictionally connected to the roller in a self-adjusting manner;

[0019] Or the driving roller drives the rotating roller via the transmission roller, the driving roller and the transmission roller are in self-adjusting friction connection and / or the transmission roller and the rotating roller are in self-adjusting friction connection.

[0020] Preferably, in the rotating roller deflection sorting device, the power source for driving the driving roller is integrated into the driving roller or arranged outside the driving roller.

[0021] Preferably, in the roller deflection sorting device, multiple rows or columns of the sorting units are driven by one deflection drive device.

[0022] Preferably, in the roller deflection sorting device, the deflection drive device includes at least a fixed motor, the motor shaft of the motor is fixedly connected to one end of the drive arm, the other end of the drive arm is pivotally connected to the middle of a transmission plate, the transmission plate and at least two strips perpendicular to it and parallel to each other and the connecting rods connected between the strips form a fixed transmission frame, and each of the strips is pivotally connected to a row of the sorting units.

[0023] Preferably, in the roller deflection sorting device, buffer rollers driven by a driving source are provided on both sides of the frame.

[0024] A logistics sorting system comprises any of the above-mentioned roller deflection sorting devices, wherein a switching device is provided on at least one side of the roller deflection sorting device.

[0025] The advantages of the technical solution of the present invention are mainly reflected in:

[0026] This solution can effectively reduce the number of deflection seats, simplify the overall structure, and reduce the weight of the equipment by arranging a group of rollers on a deflection seat. At the same time, friction drive is used to drive multiple rollers. The driving method is simple and easy to implement, and there is no interference with the deflection of the rollers, so the stability is good.

[0027] The arrangement of multiple sorting units in this solution can minimize the gaps between the conveying surfaces. At the same time, the gap areas are filled by universal balls or universal wheels, which can greatly reduce the probability of material jamming and ensure the effectiveness of sorting.

[0028] Each row of sorting units in this solution is located on a carrier plate, which can effectively disperse the gravity of all the sorting units, reduce the load on a single carrier plate, avoid the risk of carrier plate deformation, and improve safety.

[0029] The rotating structure of the deflection seat of this solution can effectively protect the bearing and reduce the risk of bearing damage.

[0030] The rollers of this solution can be driven in different ways according to different quantity requirements. The structure is flexible and only one power source is needed to effectively drive all the rollers.

[0031] The driving roller and transmission roller of this solution adopt a self-adjusting structure to effectively ensure the stability of contact between different rollers, thereby ensuring the reliability of transmission between the rollers and improving effective transportation.

[0032] The deflection drive device of this solution has a simple structure. One deflection drive device can realize the deflection drive of multiple rows of sorting units. The transmission structure is offset as a whole and does not require deformation. It has a faster response, higher deflection efficiency, and a more stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view of the sorting device of the present invention (part of the frame structure is hidden in the figure);

[0034] Figure 2 is a cross-sectional view of a sorting device of the present invention;

[0035] Figure 3 is a top view of the sorting device of the present invention;

[0036] Figure 4 is a bottom view of the sorting device of the present invention;

[0037] Figure 5 is a schematic diagram of a sorting unit of a sorting device of the present invention;

[0038] Figure 6 yes Figure 2 Enlarged view of area A in the middle;

[0039] Figure 7 It is a cross-sectional view of a deflection seat of a sorting device of the present invention having only one roller;

[0040] Figure 8 It is a top view of a deflection seat of a sorting device of the present invention having only one roller;

[0041] Figure 9 is a top view of a sorting unit of the sorting device of the present invention;

[0042] Figure 10 It is a schematic diagram of the driving wheel of the present invention being arranged on the self-adjusting device;

[0043] Figure 11 This is a schematic diagram of the present invention in which the driving wheel and the transmission wheel are both arranged on the self-adjusting device;

[0044] Figure 12 is a top view of the deflection drive device of the present invention;

[0045] Figure 13 is a front view of the deflection drive device of the present invention;

[0046] Figure 14 is a front view of a second embodiment of the deflection drive device of the present invention;

[0047] Figure 15 FIG. 1 is a top view of a second embodiment of a deflection drive device according to the present invention. DETAILED DESCRIPTION

[0048] The objects, advantages, and features of the present invention are illustrated and explained through the following non-limiting description of preferred embodiments. These embodiments are merely typical examples of the application of the technical solutions of the present invention, and any technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

[0049] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0050] The roller deflection sorting device disclosed by the present invention is described below with reference to the accompanying drawings. Figure 1 , Attachment Figure 2 As shown, it includes a frame 1000, and the frame 1000 includes support legs 1100, a fence 1200 and a top plate 1300. There are four support legs 1100 and they are distributed in a quadrilateral. Of course, the number of the support legs 1100 can also be more.

[0051] As attached Figure 1 As shown, each support leg 1100 may include a column 1110 and a foot 1120. The column 1110 is height-adjustably mounted on the foot 1120. Specifically, the foot 1120 is formed with longitudinally distributed waist-shaped holes 1121. The column 1110 is formed with connecting holes (not shown) corresponding to the waist-shaped holes 1121. Bolts 1130 are passed through the waist-shaped holes 1121 and the connecting holes, and then connected with nuts to connect the foot 1120 to the column 1110, thereby securing them. The height of the column 1110 can be adjusted by adjusting the position of the connecting holes relative to the waist-shaped holes. Of course, in other embodiments, the connecting holes on the column 1110 may also be screw holes, with the bolts being threaded into the screw holes to connect the column and foot 1120.

[0052] As attached Figure 1 As shown, the enclosure 1200 is a square sleeve as a whole, which is mounted on the four legs 1100. The top plate 1300 is square and is fixed on the top of the enclosure 1200 and covers the upper end opening of the enclosure 1200. Figure 3As shown, a group of avoidance holes 1310 are formed on the top plate 1300 for installing the sorting unit 2000 , and the distribution of the avoidance holes 1310 is designed according to the distribution of the sorting unit 2000 .

[0053] As attached Figure 1 , Attachment Figure 2 As shown, each of the sorting units 2000 is structured to transport items thereon and is capable of rotating about the longitudinal axis X of its deflection base 100. Each sorting unit 2000 is connected to a deflection drive device 3000 that drives its rotation about the longitudinal axis X. During operation, items passing through the sorting unit 2000 are conveyed in a certain direction. When the sorting unit 2000 is aligned, the items can continue to move in their initial direction of movement. When the sorting unit 2000 is deflected, the items passing through the sorting unit 2000 change their direction of movement to the direction to which the sorting unit 2000 is deflected.

[0054] In order to effectively realize the redirection of items, such as Figure 3 As shown, the sorting units 2000 are distributed in multiple rows or columns. Specifically, they are distributed in five rows. The number of sorting units 2200 in each even row is the same and one less than the number of sorting units 2100 in each odd row, that is, each odd row has five sorting units 2100, and each even row has four sorting units 2200.

[0055] In addition, as attached Figure 3 As shown, to minimize the gaps between the sorting units 2000, ensuring sorting stability and preventing jams, the sorting units 2100 and 2200 in two adjacent rows are staggered and positioned closely together. The sorting units 2100 in odd-numbered rows correspond one to one, and the sorting units 2200 in even-numbered rows correspond one to one. That is, except for the sorting units 2100 at the ends of each odd-numbered row, each of the other sorting units is located between the two sorting units in its adjacent row, and the rotation axes of the three sorting units form an equilateral triangle.

[0056] At this time, as attached Figure 3 As shown, a certain gap will be formed at both ends of the even-row sorting units 2200, which increases the risk of jamming. Therefore, in a preferred embodiment, a group of supporting universal wheels or universal balls 4000 are respectively provided at both ends of each even-row sorting unit 2200, preferably a group of bull's eye universal balls, whose tops are flush with the conveying surface of the sorting unit 2200.

[0057] Typically, all the sorting units 2000 are rotatably mounted on a plate having an area similar to that of the enclosure 1200. However, due to the large weight of the sorting units 2000, when items pass over them, the plate bears an excessively large load, which can easily lead to plate deformation in long-term use, especially the plate becoming concave in the middle, thus affecting the position accuracy of the sorting units 2000. In a preferred embodiment, as shown in the attached figure, Figure 4 As shown, each row of sorting units 2000 is rotatably arranged on a carrier plate 1400 on the frame 1000, and five rows of sorting units 200 are distributed on five carrier plates 1400, and both ends of each carrier plate 1400 are fixed on the panels opposite to the enclosure 1200.

[0058] As attached Figure 5 , Attachment Figure 6 As shown, each sorting unit 2000 includes a deflection seat 100, which is rotatably arranged on the carrier plate 1400. It is mainly used to provide installation space and support for the structure thereon, and includes a rotation shaft 110. The axis of the rotation shaft 110 is the longitudinal axis X of the deflection seat 100, which is perpendicular to the carrier plate 1400. It is fixed in the inner hole of the bearing 1500 on the carrier plate 1400, and the axis of the bearing 1500 is perpendicular to the carrier plate 1400, so that the deflection seat 100 can rotate relative to the carrier plate 1400.

[0059] In the above structure, since the deflection seat 100 and the structure thereon have a certain weight, and this weight will be applied to the bearing that enables the deflection seat 100 to rotate (the bearing with the inner and outer rings rotating relative to each other), it is easy to cause damage to the bearing. Figure 6 As shown, the bearing 1500 is fixed within a sleeve 1610 of a bearing seat 1600. The sleeve 1610 vertically extends through the carrier plate 1400 and is provided with a connecting plate 1620 on its outer periphery. The connecting plate 1620 is connected to the carrier plate 1400. A load-bearing bearing 1700 is also provided on the top of the sleeve 1610. The deflection seat 100 is disposed on the upper rotating body 1710 of the load-bearing bearing 1700. With this structure, the gravity of the deflection seat 100 and the structure above it is mainly transmitted to the carrier plate 1400 by the bearing seat 1600, while the bearing 1500 no longer needs to bear gravity or the gravity it bears is greatly reduced, thereby protecting the bearing 1500.

[0060] However, in other embodiments, the bearing 1500 is not necessary. Figure 7As shown, the deflection seat can be directly coaxially fixed on the support bearing 1700, and its rotation axis 110 passes through the support bearing 1700, and the support bearing 1700 is fixed on the bearing seat 1800 located on the carrier plate, and a mounting groove for mounting the support bearing 1700 is formed on the bearing seat 1800, which is coaxial with the support bearing 1700.

[0061] As attached Figure 5 As shown, a flat plate 120 is coaxially arranged on the rotating shaft 110. The flat plate 120 is circular or square, and of course it can also be of other feasible shapes. A square is preferably taken as an example, and pillars 130 are provided at the four vertex positions. A mounting plate 140 is provided on the pillar 130, and the outer contour of the mounting plate 140 is approximately circular. A group of rollers 200 with parallel axes and equal heights are flatly arranged on the mounting plate 140. The height of the conveying surface 300 formed by the working surfaces of a group of the rollers 200 is slightly higher than the top surface of the deflection seat 100 (i.e., the upper surface of the covering disc 150 described below) and the top plate 1300. The rollers 200 can be rotatably arranged on the mounting plate 140 as a whole, or the shafts at both ends of the rollers 200 can be fixed on the mounting plate 140, and the rollers rotate relative to the shaft. At the same time, a covering circular plate 150 is provided on the mounting plate 140 , and the top surface height of the covering circular plate 150 is equivalent to the top surface height of the top plate 1300 . At the same time, a rectangular hole 131 for installing each of the rollers 200 is formed on the covering circular plate 150 .

[0062] Of course, in another embodiment, the mounting plate 140 may not be provided on the flat plate 120, and the roller may not be provided on the mounting plate 140. The roller 200 may be mounted on the channel steel on the flat plate 120. At this time, the roller body of the roller 200 may rotate relative to its axis fixed on the channel steel 180, and the covering circular plate 150 may be directly provided on the pillar 130.

[0063] During operation, the conveyance of articles on the rollers 200 can be achieved by rotating in the same direction. When the rollers 200 rotate horizontally, the articles passing thereon can be diverted and sorted.

[0064] The number and size of the rollers 200 on each deflection seat 100 can be designed according to different needs. For example, when multiple rollers are installed on a deflection seat 100, the rollers 200 can be two relatively short and symmetrical rollers; or one long roller and two short rollers located in the middle of its two sides; or two symmetrical long rollers 210 and two short rollers 220 located in the middle of its two sides; of course, there can be more short and long rollers. Alternatively, when two long rollers are installed on the mounting plate 140, there will be a certain amount of space on both sides of the long rollers. Universal balls can be installed in this space to fill the gap.

[0065] In other feasible embodiments, as shown in the attached Figure 8 As shown, each deflection seat 100 can also be equipped with only one roller 200. In this case, the size of the entire deflection seat 100 can be made as small as possible, and the structure can be simplified. That is, the above-mentioned structure without the mounting plate 140 can be used, and the roller can be directly installed using channel steel. In addition, if two short rollers 200 are installed on each deflection seat, this simplified deflection seat 100 can also be used. However, as the structure of the deflection seat 100 is simplified and the size is reduced, the number of the sorting units 2000 in the deflection sorting device can be greater, for example, the attached Figure 8 As shown, the sorting units 2000 are arranged in 7 rows and 7 columns. At this time, two rows of the sorting units 2000 can also be placed on one carrier plate 1400.

[0066] The better way is as follows Figure 9 As shown, each mounting plate 140 is provided with two equal and symmetrical long rollers 210 and two equal and symmetrical short rollers 220 on both sides of the long roller 210. The two short rollers 220 are located in the middle area of ​​the long stick 210, and the four rotating rollers are arranged at equal intervals.

[0067] The roller 200 can be driven in various feasible ways. For example, when there is one roller, it is preferably an electric roller. In this case, the structure of the deflection seat can adopt a simplified structure, that is, only two channel steels located at both ends of the roller for mounting the roller and a covering circular plate fixed on the channel steel and the pillar are required to be provided on the flat plate.

[0068] When the number of rollers 200 is greater than or equal to two, in one embodiment, one of the rollers 200 is a motorized roller, and the other rollers 200 can be mounted on a mounting plate. The motorized roller is connected via a transmission mechanism and drives the other rollers to rotate synchronously. Specifically, the motorized roller can rotate the other rollers via an existing transmission structure consisting of a synchronous belt and synchronous wheel, or a sprocket and chain. In this case, the multiple rollers 200 have the same length and are flush at both ends. The specific structure of the motorized rollers is known in the art and is not a key feature of this solution, so it will not be described in detail here.

[0069] In another embodiment, each of the rotating rollers 200 is a motorized roller.

[0070] In another embodiment, some of the rollers 200 are motorized rollers, while the remaining rollers 200 are directly or indirectly driven by drive rollers 400 that are parallel to their axes and driven by a power source. For example, when there are three rollers 200, two rollers 200 can be a set and rotatably mounted on the mounting plate, and they are directly or indirectly driven by one drive roller 400; the other roller 200 can be a motorized roller.

[0071] In another feasible embodiment, as shown in the attached Figure 5 As shown, all the rollers 200 are mounted on the mounting plate and driven directly or indirectly by a drive roller 400 that is parallel to the drive roller's axis and driven by a power source. In direct drive, the surface of the drive roller 400 contacts the surface of the rollers 200. As the drive roller 400 rotates, the rollers 200 rotate synchronously with it due to friction. In indirect drive, the drive roller 400 drives the rollers 200 via a transmission roller 500, to which it is frictionally connected.

[0072] For example, when there are two rotating rollers 200 , the driving roller 400 is located between the two rotating rollers 200 and is in frictional contact with both rotating rollers 200 .

[0073] As attached Figure 5 As shown, when there are three or four rollers 200, two adjacent rollers 200 can form a group, and the remaining one or two rollers form another group. One group of rollers 200 is in frictional contact with a transmission roller 500, and both transmission rollers 500 are in frictional contact with the drive roller 200. When there are four rollers 200, the rollers 200, transmission rollers 500, and drive roller 400 are distributed in an inverted triangle, so that multiple rollers 200 can be driven by a single power source.

[0074] As attached Figure 5 As shown, the driving roller 400 and the transmission roller 500 are both mounted on the support seat 160 or the channel steel on the flat plate 120 .

[0075] Since the rotating roller 200 and the transmission roller 500 as well as the transmission roller 500 and the driving roller 400 need to continuously rub against each other, after a certain period of use, the contact stability between them will be relatively reduced due to friction loss, affecting the reliability of the drive.

[0076] Therefore, in a more preferred embodiment, it is necessary to enable a stable friction connection to be formed between them, such as the attached Figure 10 As shown, when the driving roller 400 directly drives the rotating roller 200, the driving roller 400 is frictionally connected to the rotating roller 200 via the self-adjusting device 600. Specifically, the driving roller 400 is disposed at both ends on a lifting seat 610 on the flat plate 120. The lifting seat 610 is slidably mounted on two guide rails 620 located on either side thereof and perpendicular to the flat plate. Furthermore, a spring 630 is normally compressed at the bottom of the lifting seat 610. The reaction force of the spring 630 provides a lifting force to the lifting seat 610, enabling the driving roller 400 thereon to maintain contact with the rotating roller 200.

[0077] When the driving roller 400 drives the rotating roller 200 through the transmission roller 500, the driving roller 400 and the transmission roller 500 are in self-adjusting friction connection and / or the transmission roller 500 and the rotating roller are in self-adjusting friction connection. Figure 11 As shown, the driving roller 400 can achieve continuous and effective contact with the transmission roller 500 by using an adjustment device with the same structure as the self-adjusting device 600. At the same time, the transmission roller 500 also uses an adjustment device with the same structure as the self-adjusting device 600 to achieve a self-adjusting friction connection with the rotating roller 200.

[0078] Furthermore, the power source for driving the drive roller 400 can be integrated within the drive roller 400 or located externally thereto. For example, if the drive roller 400 is a motorized roller, the power source is integrated within the drive roller 400. When the drive roller 400 is driven by an external power source, both ends of the drive roller 400 are rotatably mounted on a support base, and one end of the drive roller 400 is connected to a motor (not shown) located on the deflection base 100. The motor can be a reduction motor with a reduction mechanism, or a conventional motor connected to the drive roller 400 via a gear transmission or other known transmission mechanism.

[0079] No matter the roller is an electric roller or the driving roller is an electric roller, they all need to be powered by the line 700 and communicate with the host computer. Since the roller 200 and the driving roller 400 need to rotate with the deflection seat 100, the setting of the line 700 will inevitably be interfered by the deflection action. Therefore, in order to reduce the interference, as shown in the attached figure, Figure 7As shown, a wiring channel 170 coaxial with the rotating shaft 110 and the flat plate 120 is formed. The line can pass through the wiring channel 170 from the bottom of the rotating shaft and pass through the flat plate 120 to be connected to the roller 200 or the driving roller 400 on the deflection seat 100. In this way, the rotation of the deflection seat will no longer interfere with the line 700, thereby ensuring the stability of the wiring.

[0080] Each of the sorting units 2000 can be driven by an independent deflection drive device 3000. For example, the rotation shaft 110 of the deflection base 100 of each sorting unit 2000 is connected to a motor. However, this approach is obviously not conducive to reducing component costs and energy consumption. Therefore, in a more preferred approach, multiple sorting units are driven by a single deflection drive device 3000. For example, the deflection structure disclosed in the applicant's application No. 201910265828.2.

[0081] More specifically, the five rows of sorting units 2000 are driven by two deflection drive devices 3000, one deflection drive device 3000 drives two rows of sorting units, and the other deflection drive device 3000 drives three rows of sorting units.

[0082] As attached Figure 12 , Attachment Figure 13 As shown, the deflection drive device 3000 that drives two rows of sorting units includes a fixed motor 3100, the motor shaft of the motor 3100 is perpendicular to the conveying surface 300, the motor shaft of the motor 3100 is fixedly connected to one end of the driving arm 3200, and the other end of the driving arm 3200 is pivotally connected to the middle of a transmission plate 3300, and a strip board 3400 perpendicular and parallel to the transmission plate 3300 is fixed at each end. The two strip boards 3400 extend in the horizontal direction and are connected by a connecting rod 3500 perpendicular to them, so that the transmission plate 3300, the strip board 3400 and the connecting rod 3500 form a transmission frame with a fixed shape. The two strips 3400 are pivotally connected to the flat plate 120 of the deflection seat of a row of sorting units 2000. The shaft 3600 connecting the strips 3400 and the flat plate 120 is located near a side edge of the flat plate 120. The strips 3400 are formed with holes 3410 corresponding to each shaft 3600. During operation, the motor drives the drive arm 320 to rotate about the motor shaft, thereby driving the transmission frame composed of the transmission plate, strips 3400, and connecting rods 3500 to rotate as a whole without deformation. The strips 3400 then drive the connected sorting units 2000 to rotate about the axis of the rotation shaft to achieve deflection.

[0083] The overall structure and working principle of the deflection drive device 3000 that drives three rows of sorting units 2000 are similar to the overall structure of the deflection drive device 3000 that drives two rows of sorting units 200, and the principle is the same. The difference is that: there are three parallel strips 3400, and two adjacent strips are connected to form an integral frame by a connecting rod, and each strip 3400 is pivotally connected to a row of the sorting units 2000.

[0084] Or in another embodiment, as shown in the attached Figure 14 , Attachment Figure 15 As shown, the deflection drive device 3000 can drive the deflection of the entire sorting device 2000 through one power source.

[0085] Specifically, the deflection drive device 3000 includes a fixed drive motor 3001, the motor shaft of the drive motor 3001 is perpendicular to the conveying surface 300, the motor shaft of the drive motor 3001 is coaxially connected to a gear 3002, the gear 3002 is meshed with a rack 3003, the rack 3003 is connected to at least one connecting plate 3004 perpendicular thereto, preferably two connecting plates 3004, the two connecting plates 3004 are connected to a set of parallel to the rack 3003. The driven racks 3005 are arranged with equal spacing, and there is a height difference between the driven racks 3005 and the racks 3003. Each of the driven racks 3005 is slidably set on a guide rail 3006 parallel to them through a group of sliders 3008. The guide rail 3006 is fixed to the bottom of the carrier plate 1400. Each of the driven racks 3005 is engaged with a row of driven gears 3007. Each of the driven gears 3007 is coaxially fixed on the rotation shaft 110 of the deflection seat 100.

[0086] Of course, in other embodiments, the rack 3003 is not necessary, and the gear 3002 can directly engage with one of the multiple driven racks 3005.

[0087] Furthermore, when the number of driven racks 3005 is odd, the rack 3003 corresponds to the middle driven rack 3005. When the number of driven racks 3005 is even, the driven racks 3005 are symmetrically arranged on both sides of the rack 3003, i.e., the rack 3003 is always located in the middle of the multiple driven racks. Furthermore, when the deflection seat 100 is in the straight position, the straight-line distances from the ends of the rack 3003 to the ends of the driven rack 3005 are equal, and the gear 3002 is located in the middle of the rack 3003.

[0088] During operation, the drive motor 3001 drives the gear 3002 to rotate, and the gear 3002 drives the rack 3003 and the driven rack 3005 to move back and forth along their extension direction, thereby driving the driven gear 3006 engaged with them to rotate, and then driving the deflection seat 100 connected to each driven gear 3006 to rotate.

[0089] This solution further discloses a logistics sorting system (not shown in the figure), including the roller deflection sorting device of the above embodiment, wherein the roller deflection sorting device is multiple and arranged at intervals, and further includes a conveyor line connected between the two roller deflection sorting devices, such as a belt conveyor, a roller conveyor, etc. At least one side of each roller deflection sorting device is provided with a transfer device, which can be a sorting grid or other conveyor line, etc., and is specifically designed according to the needs of different application scenarios.

[0090] Taking the transfer device as a sorting grid as an example, sorting grids are provided on both sides of each deflection device. In order to reduce the impact force of materials entering the sorting grid during deflection sorting, buffer rollers (not shown in the figure) driven by a driving source are provided on both sides of the frame 1000. The buffer rollers are located on the side of the frame 1000 that is connected to the sorting grid, and the top height of the buffer rollers is equivalent to the top height of the roller 200. The buffer rollers are preferably electric rollers and the roller surface has a rubber layer. When working, the rotation speed can be lower than the rotation speed of the roller 200 of the sorting unit, thereby effectively reducing the impact force of the translation of the items and improving the safety of item sorting.

[0091] There are many implementation methods of the present invention, and all technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A roller deflection sorting device, comprising a frame (1000), characterized in that: A group of sorting units (2000) is arranged on the frame (1000), each sorting unit includes a deflection seat (100), a group of rollers (200) with parallel axes and equal heights are horizontally arranged on the deflection seat (100), the height of the conveying surface (300) formed by the rollers (200) is higher than the top surface of the deflection seat (100), and the rollers (200) are directly or indirectly friction-driven by driving rollers (400) that are parallel to their axes, driven by a power source, and located on the deflection seat (100); each of the sorting units can rotate around the longitudinal axis of its deflection seat (100) and is connected to a deflection driving device (3000) that drives its rotation; The lengths of parts of the rotating roller (200) are different, and the length of the rotating roller in the middle area is greater than the lengths of the rotating rollers on both sides; There are four rotating rollers, and the driving roller (400) drives the plurality of rotating rollers (200) via two transmission rollers (500) frictionally connected thereto; the driving roller drives the rotating roller via the transmission roller, the driving roller and the transmission roller are frictionally connected in a self-adjusting manner, and the transmission roller (500) is frictionally connected to the rotating roller in a self-adjusting manner; The driving roller is frictionally connected to the transmission roller (500) through a self-adjusting device, and the transmission roller is frictionally connected to the rotating roller through the self-adjusting device. The self-adjusting device includes a lifting seat, and the lifting seat is slidably arranged on two guide rails located on both sides thereof and perpendicular to the flat plate. The bottom of the lifting seat is also provided with a spring that is in a compressed state under normal conditions. A buffer roller driven by a driving source is provided on the frame at least on one side to which the sorting unit is to be biased. The buffer roller is an electric roller and its roller surface has a rubber layer. When working, its rotation speed is lower than the rotation speed of the rotating roller of the sorting unit.

2. The roller deflection sorting device according to claim 1, characterized in that: The sorting units are distributed in multiple rows or columns, the sorting units in two adjacent rows or columns are staggered, and the sorting units in odd-numbered rows or columns correspond one to one, and the sorting units in even-numbered rows or columns correspond one to one.

3. The roller deflection sorting device according to claim 2, characterized in that: A row or column of sorting units is arranged on a carrier plate of the frame (1000).

4. The roller deflection sorting device according to claim 2, characterized in that: Auxiliary universal balls or universal wheels are provided at both ends of a row or column of sorting units with a smaller number.

5. The roller deflection sorting device according to claim 1, characterized in that: The sorting unit is rotatably arranged on an upper rotating body of a bearing on the frame.

6. The roller deflection sorting device according to claim 1, characterized in that: A power source for driving the driving roller (400) is integrated into the driving roller (400) or arranged outside the driving roller (400).

7. The roller deflection sorting device according to claim 1, characterized in that: Multiple rows or columns of the sorting units are driven by one deflection drive device (3000).

8. The roller deflection sorting device according to claim 7, characterized in that: The deflection drive device (3000) includes a motor (3100) with a fixed position, wherein the motor shaft of the motor (3100) is connected to one end of a drive arm (3200), and the other end of the drive arm (3200) is pivotally connected to the middle of a transmission plate (3300). The transmission plate (3300) and at least two strips (3400) perpendicular to and parallel to the strips (3400) and a connecting rod (3500) connected between the strips (3400) form a fixed transmission frame, and each strip (3400) is pivotally connected to a row of the sorting units.

9. Logistics sorting system, characterized by: It comprises the roller deflection sorting device according to any one of claims 1 to 8, wherein a switching device is provided on at least one side of the roller deflection sorting device.

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