CN110841924B - Multi-layer crossed belt sorting equipment and sorting method thereof - Google Patents
Multi-layer crossed belt sorting equipment and sorting method thereof Download PDFInfo
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- CN110841924B CN110841924B CN201911043152.9A CN201911043152A CN110841924B CN 110841924 B CN110841924 B CN 110841924B CN 201911043152 A CN201911043152 A CN 201911043152A CN 110841924 B CN110841924 B CN 110841924B
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- 238000012856 packing Methods 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 9
- 230000006698 induction Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 218
- 230000007246 mechanism Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002356 single layer Substances 0.000 description 3
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C3/00—Sorting according to destination
- B07C3/02—Apparatus characterised by the means used for distribution
- B07C3/08—Apparatus characterised by the means used for distribution using arrangements of conveyors
- B07C3/082—In which the objects are carried by transport holders and the transport holders form part of the conveyor belts
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Abstract
The invention discloses multilayer crossed belt sorting equipment and a sorting method thereof, wherein the multilayer crossed belt sorting equipment comprises an annular track, at least three layers of sorting trolleys are arranged on the annular track, adjacent sorting trolleys of each layer of sorting trolleys are hinged and connected through a bracket, and the multilayer sorting trolleys can be driven by a set of power device to synchronously rotate along the annular track. The design of this scheme is exquisite, articulates between every layer of alternately take the dolly and pass through leg joint between each layer, and every layer of alternately take the dolly to form confined loop configuration and form between the multilayer dolly and stabilize and inject the structure, consequently when the dolly operation, every layer of alternately take the dolly can restrict the swing of single letter sorting dolly through overall structure to can effectually guarantee the stability of article on the letter sorting dolly, thereby guarantee the reliability of letter sorting.
Description
Technical Field
The invention relates to the field of logistics sorting, in particular to multi-layer cross-belt sorting equipment and a sorting method thereof.
Background
The cross belt sorting system consists of main driving belt conveyer and trolley with small belt conveyer, and the conveyer is rotated to complete the sorting and conveying of commodity when the trolley moves to the required sorting position. The main drive belt conveyor is referred to as a cross belt because it crosses the belt conveyor on the "trolley".
The traditional crossed belt is of a tiled single-layer structure, each trolley is driven to move through a chain type driving structure, the sorting capability of the single-layer crossed belt cannot meet the increasing package sorting requirement, and meanwhile, the longitudinal space of a field occupied by the single-layer crossed belt is not fully utilized.
In order to increase the sorting capability, a plurality of layers of trolleys can be directly arranged on a traditional chain type driving structure, but due to limited chain bearing capacity of the chain type driving structure, the number of trolley layers which can be increased is limited, and when the number of trolley layers reaches 3 layers or more, the chain type driving structure is difficult to stably drive the multilayer crossed belt trolleys to stably operate, so that the realization difficulty is high.
Therefore, there are also enterprises developing multi-layer cross belts that essentially integrate multiple independent cross belt systems, but each layer is driven by an independent power mechanism, while relatively improving sorting capacity and space utilization, the corresponding power costs are not much optimized.
As another example, the application number 201510184464.7 discloses a double-layer cross belt sorter, in which two layers of cross belts are disposed on a frame, the frame is slidably disposed on a guide rail through a base, and frame supports are connected so as to reduce energy consumption through a set of power sources, but this structure has difficulty in applying a three-layer or more-layer cross belt sorting system with higher sorting capability, mainly because after more layers of cross belts are disposed on each frame, the load of each frame is large and there is no connection relationship between the cross belts of each layer on each frame, so that the frame is easy to shake during the running process on a track, especially in a turning area, the stability of placing articles on the frame is seriously affected, and the reliability of sorting is further affected.
In addition, even if a three-layer or more-layer crossed belt structure can be designed, the design and arrangement of the wrapping wire for wrapping each layer of crossed belt also greatly limit the use of the three-layer or more-layer crossed belt, and the reason is mainly that in the stacked wrapping table structure, the height of the adjacent layer wrapping table is insufficient to provide enough space for staff to perform standing operation; if the stacking mode is not adopted, the bag supplying table occupies more horizontal space, so that the number of sorting openings is reduced.
Finally, in the existing double-layer crossed belt system, the wrapping supply lines for wrapping the crossed belt trolleys at each layer cannot be switched among different layers, so that during actual sorting, articles are required to be pre-sorted, and then the same kind of articles are placed on the corresponding wrapping supply lines so as to ensure that the articles conveyed by the wrapping supply lines belong to the wrapping opening range which can be reached by the sorting trolleys corresponding to the wrapping supply lines; once the route of an article on the package supply line is not within the range of the package outlet which can be reached by the sorting trolley corresponding to the package supply line, the article cannot be sorted normally, so that the flexibility of application is poor.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a multi-layer cross belt sorting device and a sorting method thereof.
The aim of the invention is achieved by the following technical scheme:
the multi-layer crossed belt sorting equipment comprises an annular track, wherein at least three layers of sorting trolleys are arranged on the annular track, every layer of sorting trolleys are hinged between adjacent sorting trolleys and connected through a bracket, and the multi-layer sorting trolleys can be driven by a set of power device to synchronously rotate along the annular track.
Preferably, in the multilayer cross belt sorting device, the bottom layer sorting trolleys are slidably arranged on the annular track, the bottom layer sorting trolleys are driven by the power device to rotate along the annular track, and at least two layers of sorting trolleys which rotate synchronously with the bottom layer sorting trolleys are arranged on one group of bottom layer sorting trolleys.
Preferably, in the multilayer crossed belt sorting device, a first wrapping wire connected with each odd-layer sorting trolley is arranged on the outer side of the annular track; the inner side of the annular track is provided with a second wrapping wire connected with each sorting trolley of even layers.
Preferably, in the multilayer cross-belt sorting device, the upper wrapping position of the first wrapping wire located at the lower position in the first wrapping wire corresponding to the adjacent odd layer extends to the outer side of the upper wrapping position of the first wrapping wire located at the higher position, and the upper wrapping position of the second wrapping wire located at the lower position in the second wrapping wire corresponding to the adjacent even layer extends to the outer side of the upper wrapping position of the second wrapping wire located at the higher position.
Preferably, in the multilayer cross belt sorting device, the power device comprises a linear motor with a fixed position and an induction plate arranged on the bottom layer sorting trolley or comprises a friction wheel driven by the motor to rotate and a friction plate arranged on the bottom layer sorting trolley and capable of being attached to the friction wheel.
Preferably, in the multilayer cross-belt sorting device, the first wrapping wire supply and the second wrapping wire supply each comprise an upper wrapping position, a DWS conveying line, a first conveying line and a second conveying line which are sequentially connected.
Preferably, in the multilayer cross-belt sorting device, the width of the output end of the first wrapping wire and the width of the output end of the second wrapping wire are not less than twice the width of the sorting trolley.
Preferably, in the multi-layer cross belt sorting device, the second wrapping wire corresponding to each even-numbered layer sorting trolley is multiple, the output end of at least one of the second wrapping wires corresponding to each even-numbered layer sorting trolley is height-adjustable and can be switched to be connected with two adjacent odd-numbered layer sorting trolleys, and the conveying surface of the second conveying line of the second wrapping wire is always parallel to the conveying surface of the sorting trolley connected with the conveying surface of the second conveying line.
Preferably, in the multilayer cross belt sorting device, the input end and the output end of the second conveying line with the height adjustable output ends are respectively provided with a laser range finder for leveling the second conveying line.
Preferably, in the multi-layer cross belt sorting device, the number of the first wrapping wire provided corresponding to each odd-layer sorting trolley is multiple, and the height of the output end of at least one of the first wrapping wires provided corresponding to each odd-layer sorting trolley is adjustable and can be switched to be connected with two adjacent even-layer sorting trolleys.
A sorting method of a multi-layered cross-belt sorting apparatus, comprising the steps of:
s1, placing an article on a second wrapping line with an output end height adjustable, and determining a target wrapping opening of the article according to the acquired article route;
s2, when a target packing opening is arranged at an accessible packing opening of an even-layer sorting trolley corresponding to a second packing line with an adjustable output end height, the second packing line is kept to be connected with the even-layer sorting trolley and conveys articles to the reserved sorting trolley;
s3, when the target lower package opening is not in the reachable range of the even-layer sorting trolley corresponding to the second wrapping wire with the height adjustable output end, and the target lower package opening is in the reachable lower package openings of the two adjacent odd-layer sorting trolleys, the output end of the second wrapping wire is switched to be connected with the corresponding odd-layer sorting trolley, and the articles are conveyed to the reserved odd-layer sorting trolleys;
s4, when the target lower package opening is not in the reachable range of the even-layer sorting trolley corresponding to the second package supplying line with the adjustable height of the output end, and the target lower package opening is in the reachable lower package opening of the two odd-layer sorting trolleys which are not adjacent to the target lower package opening, at least two times of transfer of the adjustable second package supplying lines with the adjustable heights corresponding to the plurality of even-layer sorting trolleys are used for transferring articles to the sorting trolleys of the layer corresponding to the target lower package opening.
The technical scheme of the invention has the advantages that:
1. the scheme is exquisite in design, simple in structure, and articulated between every layer of crossed belt trolley and through leg joint between each layer, every layer of crossed belt trolley forms a closed annular structure and forms stable limit structure between the multilayer trolley, so when the trolley operates, the crossed belt trolley of every layer can restrict the swing of single letter sorting trolley through overall structure to can effectually guarantee the stability of article on the letter sorting trolley, thereby guarantee the reliability of letter sorting. Through set up the multilayer alternately area on the bottom alternately area, can reduce the load of stand to a certain extent.
2. The second wrapping supply lines and the first wrapping supply lines are distributed on two sides of the track, so that the space of the first wrapping supply lines corresponding to the adjacent odd-layer sorting trolleys and the space between the second wrapping supply lines corresponding to the adjacent even-layer sorting trolleys can be increased, and an effective space is provided for manual wrapping operation; in addition, the manual wrapping positions of the first wrapping wire and the second wrapping wire at the low position extend out of the first wrapping wire and the second wrapping wire at the upper layer, so that the upper layer and the lower layer do not interfere with each other, and an effective space is further provided for manual wrapping.
3. The power device of the scheme adopts a linear motor or a friction wheel for driving, the quantity and the position of the power sources can be adjusted according to the needs, the application is flexible and free, and the adjustability is stronger.
4. The design of the guide notch can ensure that various boxes and boxes are in a straightening state when being conveyed to the sorting trolley, so that favorable conditions are created for subsequent sorting operation.
5. The output end of the second wrapping wire adopts an adjustable structure, and the connection relation with the three layers of crossed belts can be switched according to the routing of the article, so that the article can be effectively sorted from one wrapping wire to any one layer of the three layers of crossed belts, the process of sorting the packages in advance is omitted, and the application flexibility is good.
6. The height of the output end of the part of the first wrapping wire supplying structure is adjustable, so that the sorting efficiency can be further improved, and meanwhile, the cooperation between the wrapping wires supplying structure can be increased, so that the sorting efficiency is improved.
Drawings
FIG. 1 is a partial side view of the present invention;
FIG. 2 is a partial top view of the present invention;
FIG. 3 is a diagram of the positional relationship of the bottom sorting trolley and the endless track of the present invention;
fig. 4 is a bottom view of the bottom sort cart of the present invention;
fig. 5 is a first side view of the bottom sorting cart of the present invention;
fig. 6 is a second side view of the floor sort cart of the present invention;
FIG. 7 is a schematic illustration of the articulation between the floor sort cart of the present invention and the power plant;
FIG. 8 is a schematic view of a second embodiment of the power plant of the present invention;
FIG. 9 is a schematic view of the structure of a second overclad wire of the present invention;
FIG. 10 is a schematic view of the engagement of the second overcladding wire with the intermediate sorting cart of the present invention;
FIG. 11 is a schematic view of the second overclad wire of the present invention engaged with an upper sorting cart;
FIG. 12 is a schematic view of the engagement of the second overcladding wire with the bottom sorting cart of the present invention; .
Detailed Description
The objects, advantages and features of the present invention are illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are only typical examples of the technical scheme of the invention, and all technical schemes formed by adopting equivalent substitution or equivalent transformation fall within the scope of the invention.
In the description of the embodiments, it should be noted that the positional or positional relationship indicated by the terms such as "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in the specific orientation, and thus are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the scheme, the direction approaching the operator is the near end, and the direction separating from the operator is the far end, with reference to the operator.
The multi-layer crossed belt sorting equipment disclosed by the invention is described below with reference to the accompanying drawings, and as shown in the accompanying drawings, the multi-layer crossed belt sorting equipment comprises an annular track 1, wherein at least three layers of sorting trolleys 2, preferably 3-8 layers, are arranged on the annular track 1, the multi-layer sorting trolleys 2 can be driven by a set of power devices to synchronously rotate along the annular track, adjacent sorting trolleys of each layer of sorting trolleys are hinged, and the adjacent sorting trolleys can be connected through rod end joint bearings or hinges.
In one embodiment, sorting carts with the same position in each layer of sorting carts may be disposed on the same support as in the patents in the background art, so that the support may slide on the annular track, which is not described herein.
In another embodiment, a group of bottom layer sorting trolleys 2 connected in a ring shape are slidably arranged on the ring-shaped track, and the bottom layer sorting trolleys 2 are driven by a power device to rotate along the ring-shaped track 1, and at least two layers of sorting trolleys which rotate synchronously with the bottom layer sorting trolleys are arranged on each of the bottom layer sorting trolleys 2, so that the bottom layer sorting trolleys drive the upper layer sorting trolleys to rotate, at the moment, the load of a support can be relatively reduced, and the following description will be given by taking the bottom layer sorting trolleys as an example.
As shown in fig. 2 and fig. 3, the circular track 1 is horizontally laid, that is, the axis of the circular track is vertical to the horizontal plane, and the circular track may be circular, elliptical or waist-shaped, the circular track 1 includes a straight track section 11 and a curve section 12 connected with the straight track section, and two limiting grooves 13 which are opposite in position and used for moving wheels on the sorting trolley are formed on the straight track section 11 and the curve section 12.
The bottom sorting trolley 200 may be various known devices with conveying functions, such as a belt line, a roller line, a deflection wheel line, etc., preferably, as shown in fig. 3 to fig. 6, the bottom sorting trolley 200 includes a frame 21, the frame 21 is in an i shape, and includes a short section bar 211, a long section bar 213, and a connection section bar 212 vertically connecting the short section bar 211, a longitudinal hole 2111 is formed in the middle of the short section bar 211, and a connection hole 2113 is formed at an outer side wall 2112 of the longitudinal hole 2111; a connecting shaft 214 with the same extending direction is arranged at the middle position of the long section 213, and a notch 2132 matched with the position of the connecting shaft 214 is formed on a section plate 2131 below the connecting shaft 214; the two ends of the long section bar 213 are respectively provided with a roller 22 positioned at the outer side of the long section bar 213, the positions, close to the two ends, of the bottom of the long section bar 213 are respectively provided with a guide wheel 24, the axis of the guide wheel 24 is vertical to the axis of the roller 22, when the frame 21 is arranged on the annular track, the two rollers 22 are respectively positioned in the limit grooves 13 of the inner track 11 and the outer track 12, and the two guide wheels 24 are respectively attached to the inner side walls of the inner track 11 and the outer track 12, so that the frame 21 is prevented from swinging in the horizontal direction; the connecting profile 212 comprises two profiles of equal height and with a clearance, which are screwed in the middle of the short profile 211 and the long profile 213, respectively.
As shown in fig. 6, the frame 21 is provided with a belt conveyor 23, and two ends 231 and 232 of the belt conveyor 23 extend to the outside of two sides of the circular track 1, so that the frame can be conveniently connected with other conveying lines or equipment, and interference of the circular track is avoided.
The belt conveyor may be in various possible structures, and in a preferred structure, as shown in fig. 6, the belt conveyor 23 includes a base frame 233 disposed on the frame 21, two ends of the base frame 233 are respectively provided with a roller 234, at least one roller 234 is a powered roller, a space between the two rollers 234 is adjustable, and at least one belt 235 is sleeved on the rollers.
The adjustment of the gap between the two rollers 234 is achieved by the following structure: as shown in fig. 6, a pair of mounting grooves 2331 and 2332 for erecting rollers 234 are respectively formed on two end side plates of the base frame 233, the extending direction of at least one mounting groove 2331 is the same as the conveying direction of the belt 235, two ends of a supporting shaft of the rollers erected in the mounting groove 2331 are respectively connected with a screw rod 236, the screw rods 236 penetrate through holes in a supporting plate 237 at the side wall of the base frame 233 and are fixed by two nuts 238 positioned at two sides of the supporting plate 237, and the relative positions of the screw rods 236 and the supporting plate 237 are adjusted, so that the position adjustment of the corresponding rollers can be realized, and the tension of the belt 235 is adjusted.
And, the diameter of the middle area of the two rollers 234 is larger than that of the two side areas, and the diameters of the two sides are gradually reduced towards the outer ends, so that when the belt rotates on the two rollers 234, the upper layer and the lower layer of the belt are in convex shapes, and therefore, the problem of belt deviation is not easy to occur relative to a plane shape.
In addition, because the circular track has the circular arc area, as shown in fig. 6 and fig. 7, the structure that the bottom sorting trolleys 200 are connected with each other may interfere with the sliding of each sorting trolley in the circular arc area, so that the trolleys shake, etc. in this solution, the frames 21 of the adjacent bottom sorting trolleys 200 are pivotally connected, specifically, the adjacent frames 21 are connected through rod end joint bearings 25, the screw ends of the rod end joint bearings 25 are connected with the connecting holes 2113 on the frames, the inner balls at the other ends of the rod end joint bearings are sleeved on the connecting shafts 214, the inner balls are located in the middle positions of the long sections, and two sides of the inner balls are limited by limiting sleeves sleeved on the connecting shafts 214 respectively.
As shown in fig. 3, 7 and 8, the power device 3 is disposed at the bottom of the bottom layer sorting trolley 200, and includes a linear motor 31 fixed on the annular guide rail 1 and a sensing plate 32 disposed on the bottom layer sorting trolley 200, or includes a friction wheel 33 driven by a motor 35 to rotate and a friction plate 34 disposed on the bottom layer sorting trolley 200 and attached to the friction wheel, when each bottom layer sorting trolley 200 passes through the linear motor 31 or the friction wheel, the linear motor 31 or the friction wheel drives the sensing plate 32 or the friction plate to move through magnetic force or friction force, so as to drive the bottom layer sorting trolley 200 to move, and the number and specific positions of the linear motor 31 or the friction wheel can be adjusted according to the required power, and the bottom of each bottom layer sorting trolley 200 can be provided with the sensing plate or the friction plate, or the bottom of a part of the bottom layer sorting trolley 200 can be provided with the sensing plate or the friction plate. Of course, in other embodiments, the bottom sorting trolley may also be driven by a motor in cooperation with a transmission structure formed by a chain and a sprocket, which is a known technology and will not be described herein.
All sorting trolleys above the bottom layer sorting trolley 200 have the same structure as the bottom layer sorting trolley 200, and the difference is that the sensing plate or the friction plate is not arranged on the sorting trolley on the upper layer, and the hinge structure between the adjacent sorting trolleys on the upper layer is consistent with the connection structure between the sorting trolleys 200 on the bottom layer, which is not repeated here.
As shown in fig. 2, a first wrapping wire connected with each odd-layer sorting trolley is arranged on the outer side of the annular track 1; the inner side of the annular track is provided with a second wrapping wire connected with each sorting trolley of even layers. And the upper wrapping position of the first wrapping wire positioned at the lower position in the first wrapping wire corresponding to the adjacent odd layer extends to the outer side of the upper wrapping position of the first wrapping wire positioned at the higher position, and the upper wrapping position of the second wrapping wire positioned at the lower position in the second wrapping wire corresponding to the adjacent even layer extends to the outer side of the upper wrapping position of the second wrapping wire positioned at the higher position.
For convenience of explanation, as shown in fig. 1 and fig. 10-12, the sorting system is illustrated by taking three layers as examples, that is, two layers of middle layer sorting trolleys 201 and upper layer sorting trolleys 202 rotating synchronously with the middle layer sorting trolleys are arranged on the bottom layer sorting trolleys 200, the middle layer sorting trolleys 201 and the upper layer sorting trolleys 202 are in one-to-one correspondence with each bottom layer sorting trolley 200, that is, a middle layer sorting trolley 201 is arranged right above one bottom layer sorting trolley 200, an upper layer sorting trolley 202 is arranged above each middle layer sorting trolley 201, and the middle layer sorting trolleys 201 and the upper layer sorting trolleys 202 which are opposite in position are connected with the bottom layer sorting trolleys 200 through a frame, and the frame can be at least one upright post 8, so that when the bottom layer sorting trolleys 200 rotate, the middle layer sorting trolleys 201 and the upper layer sorting trolleys 202 can rotate synchronously.
In one possible embodiment, the upper layer sorting trolley 202 and the middle layer sorting trolley 201 are located on the same side of the upright 8, and in another possible embodiment, the upper layer sorting trolley and the middle layer sorting trolley 201 are located on two sides of the upright 8, so that deformation caused by gravity on one side of the upright can be avoided.
As shown in fig. 2, the outer sides of the bottom layer sorting trolley 200 (first layer) and the upper layer sorting trolley 202 (third layer) are respectively provided with first wrapping wires 5 and 7 connected with the first wrapping wires, the inner side of the middle layer sorting trolley 201 (second layer) is provided with a second wrapping wire 6, and the wrapping position of the first wrapping wire 5 connected with the bottom layer sorting trolley 200 extends to the outer part of the wrapping position of the first wrapping wire 7 connected with the upper layer sorting trolley 202.
The first wrapping wires 5 and 7 and the second wrapping wire 6 have the same structure, and the second wrapping wire 6 is described below as an example, as shown in fig. 9, and includes a substrate 65, an upper wrapping station 61, a dws conveying line 62, a first conveying line 63, and a second conveying line 64, which are sequentially connected and located on the substrate 65.
The upper wrapping position 61 is used for feeding manually or through automatic equipment, and meanwhile, in order to ensure that the articles are in a straightening state on the sorting trolley, as shown in fig. 2, the upper wrapping position comprises a guide block, a right-angle guide notch is formed on the guide block, one edge of the right-angle guide notch is parallel to the straight channel section 11, the other edge of the right-angle guide notch is perpendicular to the straight channel section 11, and the guide block is positioned above a conveying surface of an upper wrapping wire connected with the DWS conveying line.
The DWS conveyor line 62 is at least used for weighing and scanning the product, and sending corresponding information (weight, route, shape, etc.) to an upper computer for processing, and includes a belt conveyor, a pressure sensor module, a code scanning device, a size measuring device, etc., which are known technologies and will not be described herein. The roller of the belt conveyor of the DWS conveying line comprises a middle cylindrical section and conical sections positioned at two ends of the middle cylindrical section, and the diameter of the conical sections is gradually reduced outwards by the joint points of the conical sections and the middle cylindrical section, so that the belt deviation can be effectively prevented.
The first conveying line 63 and the second conveying line 64 are used for adjusting the conveying speed of the articles according to the distance from the reserved sorting trolley to the loading point and the time of use, so that the articles can be accurately conveyed to the reserved sorting trolley.
And, the width of second transfer chain 64 is not less than bottom letter sorting dolly 200, intermediate level letter sorting dolly 201 or the twice of the width of upper strata letter sorting dolly 202, promptly the output of second transfer chain 64 can link up with two bottom letter sorting dollies 200 or two intermediate level letter sorting dollies 201 or two upper strata letter sorting dollies 202 simultaneously, can reduce the material loading degree of difficulty of article like this, guarantees the stability and the accuracy of material loading.
In addition, if the output ends of the first wrapping wire 5, 7 and the second wrapping wire 6, that is, the output end of the second conveying wire are respectively fixedly connected with the bottom layer sorting trolley 200, the upper layer sorting trolley 202 and the middle layer sorting trolley 201, the articles at the first wrapping wire 5, 7 and the second wrapping wire 6 must be screened to determine that the routes of the articles are the lower wrapping openings which can be conveyed by the sorting trolley at the corresponding layer, so that the sorting procedure is increased.
Therefore, in order to improve the flexibility of sorting, in actual use, the number of the second wrapping supply lines 6 connected with the middle layer sorting trolley 201 is plural, as shown in fig. 2, a row of the second wrapping supply lines 6 are respectively arranged at two corner positions of the circular track 1, and as shown in fig. 10-12, the output end of at least one of the second wrapping supply lines 6 can be connected with any one of the upper layer sorting trolley 202, the middle layer sorting trolley 201 or the bottom layer sorting trolley 200 in a state; meanwhile, the conveying surface of the second conveying line 64 of the second wrapping wire 6 is parallel to and in a flush state with the conveying surface of the upper layer sorting trolley 202, the middle layer sorting trolley 201 or the bottom layer sorting trolley 200 when being connected with the upper layer sorting trolley 202, the middle layer sorting trolley 201 or the bottom layer sorting trolley 200.
That is, the height of the output end of the second wrapping wire 6 may be adjusted, as shown in fig. 10, in a normal state, the conveying surface of the second wrapping wire 6 is equal to the height of the conveying surface of the middle layer sorting trolley 201, so that the objects can be normally conveyed to the middle layer sorting trolley 201, and when the discharging opening of a certain object does not correspond to the middle layer sorting trolley 201, as shown in fig. 11 and 12, the output end of the second wrapping wire 6 needs to be connected with the conveying surface of the upper layer sorting trolley 202 and the conveying surface of the bottom layer sorting trolley 200, and the height of the output end 6 of the second wrapping wire may be adjusted, for example, when the discharging opening of the object route display object acquired by the DWS conveying wire 62 of the second wrapping wire 6 corresponds to the discharging opening which can be reached by the bottom layer sorting trolley 200, the output end of the second wrapping wire 6 may be switched to be connected with the bottom layer sorting trolley 200, so that the objects can be conveniently conveyed to the target route position.
The specific structure is as follows, as shown in fig. 9, the input end of the first conveying line 63 of the second wrapping wire 6 can rotate around an axis disposed at the output end of the DWS conveying line 62, and a lifting mechanism 66 for driving the first conveying line 63 to rotate around the axis 65 is disposed at the bottom of the first conveying line 63, and the lifting mechanism 66 may be at least one double-headed cylinder or a hydraulic cylinder or a structure formed by reversely butting two cylinders.
Taking the lifting mechanism 66 as a double-head cylinder for illustration, when one cylinder shaft of the double-head cylinder extends out, the first conveying line 63 of the second wrapping wire 6 is in a horizontal state and the output end of the first conveying line is connected with the middle layer sorting trolley 201; when both cylinder shafts extend, the output end of the first conveying line 63 of the second wrapping wire 6 is connected with the upper sorting trolley 202; when both cylinder shafts are retracted, the output end of the first conveyor line 63 of the second wrapping wire 6 is engaged with the bottom sorting trolley 200.
The input end of the second conveying line 64 of the second wrapping wire 6 is fixedly connected with a rotatable rotating shaft 67 at the output end of the first conveying line 63, at least one end of the rotating shaft 67 is provided with a chain wheel 68, the chain wheel 68 is connected with a driving wheel 620 connected with the rotating shaft of a motor 610 through a chain 69, and the motor 610 is fixed on the side surface of the second conveying line 64.
Meanwhile, as shown in fig. 9, in order to ensure the supporting stability of the second conveying line 64, electric telescopic rods 630 (such as electric push cylinders) are further disposed on two sides or bottom of the output end of the second conveying line 64, and after the second conveying line 64 is adjusted to be horizontal, the electric telescopic rods 630 extend to abut against the base plate 65, so as to provide support for the second conveying line 64 (in specific implementation, whether the push rod contacts with the base plate 65 or not may be determined by a pressure sensor or the like, which is a known technology and will not be repeated herein).
Of course, the second conveyor line 64 may be pivotally connected to the first conveyor line 63, and a lifting mechanism for driving the second conveyor line to pivot around the pivot connected to the first conveyor line 63 may be provided at the bottom of the second conveyor line, and the lifting mechanism may be an oil cylinder, a hydraulic cylinder, or the like, and the lifting mechanism may be operated while the lifting mechanism 63 is adjusted.
In order to quickly ensure that the second conveying line 64 can be accurately adjusted to a horizontal state, as shown in fig. 9, laser rangefinders 640 and 650 for measuring the distance from the second conveying line 64 to a fixed plane are respectively arranged at the bottoms or sides of the input end and the output end of the second conveying line 64, and the laser rangefinders 640 and 650 are connected with an upper computer.
Further, as shown in fig. 2, the first wrapping wire 5 engaged by the bottom layer sorting trolley 200 and the first wrapping wire 7 engaged by the upper layer sorting trolley 202 are also plural and are adjacent to the second wrapping wire 6, they are also close to the turning position of the circular track 1 and are located at the straight path section of the circular track, and a first wrapping wire 7 is disposed directly above each first wrapping wire 5, and the substrate of the first wrapping wire 5 extends to the outside of the substrate of the first wrapping wire 7, so as to provide a standing space for the staff.
Meanwhile, in order to facilitate that the routes on the first wrapping wire 5 and/or the first wrapping wire 7 are not timely adjusted when the corresponding upper layer sorting trolley and the lower layer sorting trolley reach the lower wrapping port, the output end of at least one of the first wrapping wire 5 and/or the first wrapping wire 7 can be connected with any one of the upper layer sorting trolley 202, the middle layer sorting trolley 201 or the lower layer sorting trolley 200 in a state. That is, the structure is identical to the structure of the second wrapping wire 6 with the height-adjustable output end, which is not described here, so that the adjustment can be performed more flexibly.
In the actual structure, as shown in fig. 2, two sides of at least a straight path section of the circular track are respectively provided with a plurality of rows of lower package openings 4 corresponding to the upper layer sorting trolley 202, the middle layer sorting trolley 201 and the lower layer sorting trolley 200, a lower package opening corresponding to the middle layer sorting trolley is arranged right above each lower package opening (not shown in the figure) of the lower layer sorting trolley 200, a lower package opening corresponding to the upper layer sorting trolley is arranged right above the lower package opening corresponding to each middle layer sorting trolley, and the lower package openings at the same position can sort articles at the same destination, or sort articles at different destinations, preferably the lower package openings at least at the same position sort articles at different destinations.
Of course, conveyor lines which are connected to the upper layer sorting trolley 202, the middle layer sorting trolley 201 and the lower layer sorting trolley 200 can also be provided on both sides of at least the straight path section of the endless track instead of the lower bag opening, so that subsequent conveyance is possible.
Finally, when the whole equipment works, each conveying line, each sorting trolley, each laser sensor and other electric equipment are connected to an upper computer or each PLC system, so that the control is performed through the upper computer or each PLC system, and the control is not the key point of the scheme and is not repeated.
The sorting method of the multi-layer cross-belt sorting device is mainly described below, and still three layers are taken as examples for illustration, and specifically comprises the following steps:
and S10, placing the objects on the second wrapping wire 6, acquiring routing information of the objects when the objects pass through the DWS conveying wire 62 of the second wrapping wire 6, determining the position of a lower wrapping opening of the objects, and determining that the lower sorting trolley corresponding to the determined position of the lower wrapping opening is an upper sorting trolley or a middle sorting trolley or a bottom sorting trolley.
And S20, when the lower wrapping opening corresponds to the middle layer sorting trolley 201, as shown in fig. 10, the second wrapping wire 6 is kept in a state of being connected with the middle layer sorting trolley and is used for conveying the articles to the reserved middle layer sorting trolley, and the reserved middle layer sorting trolley is started to convey the articles on the reserved middle layer sorting trolley to the lower wrapping opening when rotating to the target lower wrapping opening.
And S30, when the lower bag opening corresponds to the upper layer sorting trolley 202 or the bottom layer sorting trolley 200, as shown in fig. 11 and 12, the output end of the second bag supplying line is switched to be connected with the upper layer sorting trolley 202 or the bottom layer sorting trolley 200, and the reserved upper layer sorting trolley 202 or the bottom layer sorting trolley 200 is used for conveying articles, and when the reserved upper layer sorting trolley 202 or the reserved bottom layer sorting trolley 200 is rotated to the target lower bag opening, the reserved upper layer sorting trolley 202 or the reserved bottom layer sorting trolley 200 is started to convey the articles on the reserved upper layer sorting trolley or the reserved bottom layer sorting trolley to the lower bag opening.
In addition, when the destination of the articles output by the first wrapping wire 5 at the bottom layer or the first wrapping wire 7 at the upper layer or the second wrapping wire 6 with the non-adjustable output end is not at the sorting opening where the corresponding bottom sorting trolley 200, the upper sorting trolley 202 or the middle sorting trolley 201 can reach, the second wrapping wire 6 with the adjustable output end can also be used for transferring, and the following description will be given by taking the first wrapping wire 5 as an example:
s40, placing the objects on the first wrapping line 5 respectively, acquiring routing information of the objects when the objects pass through the DWS conveying line 52 of the first wrapping line 5, determining the position of a lower wrapping opening of the objects, and determining that the lower sorting trolley corresponding to the determined position of the lower wrapping opening is an upper sorting trolley or a middle sorting trolley or a bottom sorting trolley.
And S50, when the lower package opening of the articles on the first package supply line 5 corresponds to the upper layer sorting trolley 202, the first package supply line conveys the articles to the reserved upper layer sorting trolley 202, and when the reserved upper layer sorting trolley 202 rotates to the target lower package opening, the articles on the reserved upper layer sorting trolley 202 are started to be conveyed to the lower package opening.
S60, when the lower opening of the article on the first wrapping line 5 does not correspond to the upper layer sorting cart 202, that is, when the lower opening of the article on the first wrapping line 5 corresponds to the lower opening position that can be reached by the bottom layer sorting cart 200 or the middle layer sorting cart 201, S70 is executed.
S70, conveying the articles to the reserved upper sorting trolley 202 by the first wrapping wire 5, and switching the output end of the second wrapping wire 6 to be engaged with the upper sorting trolley 202; the reserved upper sorting trolley 202 is then turned into engagement with the second supply line 6 to initiate the transfer of the articles thereon to the second conveyor line 64 of the second supply line 6.
S80, the output end of the second wrapping wire 6 is switched to be engaged with the bottom sorting trolley 200 or the middle sorting trolley 201, then, when the reserved bottom sorting trolley 200 or the middle sorting trolley 201 is about to be engaged with the second conveying line 64 or is engaged with the second conveying line 64, the second conveying line 64 starts to transfer the articles on the reserved bottom sorting trolley 200 or the middle sorting trolley 201, and when the reserved bottom sorting trolley 200 or the middle sorting trolley 201 rotates to the target lower package opening, the articles on the reserved bottom sorting trolley 200 or the middle sorting trolley 201 starts to be conveyed to the lower package opening.
The transferring process of the articles of the first wrapping wire 7 and the second wrapping wire 6 with the non-adjustable output end height is the same as or similar to the process of S40-S80, and will not be described herein.
Of course, in the practical system, the second wrapping wire 6 with the height-adjustable output end is not only one, and at least one output end in the first wrapping wires 5 and the first wrapping wires 7 is also respectively adjustable in height, so that during practical transplanting, the wrapping wire with the height-adjustable output end can be selected to be used for carrying out article transfer among sorting trolleys of different layers according to the nearby principle and the vacant principle.
When the number of layers of the multi-layer crossed belt sorting equipment is more than three, the sorting process is as follows:
s1, placing an article on a second wrapping line with an output end height adjustable, and determining a target wrapping opening of the article according to the acquired article route;
s2, when a target packing opening is arranged at an accessible packing opening of an even-layer sorting trolley corresponding to a second packing line with an adjustable output end height, the second packing line is kept to be connected with the even-layer sorting trolley and conveys articles to the reserved sorting trolley;
s3, when the target lower package opening is not in the reachable range of the even-layer sorting trolley corresponding to the second wrapping wire with the height adjustable output end, and the target lower package opening is in the reachable lower package openings of the two adjacent odd-layer sorting trolleys, the output end of the second wrapping wire is switched to be connected with the corresponding odd-layer sorting trolley, and the articles are conveyed to the reserved odd-layer sorting trolleys;
s4, when the target lower package opening is not in the reachable range of the even-layer sorting trolley corresponding to the second package supplying line with the adjustable height of the output end, and the target lower package opening is in the reachable lower package opening of the two odd-layer sorting trolleys which are not adjacent to the target lower package opening, at least two times of transfer of the adjustable second package supplying lines with the adjustable heights corresponding to the plurality of even-layer sorting trolleys are used for transferring articles to the sorting trolleys of the layer corresponding to the target lower package opening. For example, when the layer of the sorting trolley corresponding to the target lower wrapping opening is different from the layer of the sorting trolley joined by the second wrapping wire, which is wrapped up, by at least two layers, the sorting trolley cannot be directly transferred to the sorting trolley of the corresponding layer through the second wrapping wire when the articles are wrapped up, and at this time, at least one transfer is required to be performed through another wrapping wire adjacent to the second wrapping wire, so that the articles reach the sorting trolley of the layer corresponding to the target lower wrapping opening.
The invention has various embodiments, and all technical schemes formed by equivalent transformation or equivalent transformation fall within the protection scope of the invention.
Claims (4)
1. Multilayer alternately takes letter sorting equipment, its characterized in that: the automatic sorting device comprises an annular rail, wherein at least three layers of sorting trolleys are arranged on the annular rail, adjacent sorting trolleys of each layer of sorting trolleys are hinged and connected through a bracket, and the multi-layer sorting trolleys can be driven by a set of power device to synchronously rotate along the annular rail; the bottom layer sorting trolleys are slidably arranged on the annular track, the bottom layer sorting trolleys are driven by a power device to rotate along the annular track, and each bottom layer sorting trolley is provided with at least two layers of sorting trolleys which rotate synchronously with the bottom layer sorting trolleys through upright posts;
the outer side of the annular track is provided with a first wrapping wire connected with each odd-layer sorting trolley; the inner side of the annular track is provided with a second wrapping wire connected with each sorting trolley on even layers; the upper wrapping position of the first wrapping wire positioned at the lower position in the first wrapping wire corresponding to the adjacent odd layer extends to the outer side of the upper wrapping position of the first wrapping wire positioned at the upper position in the first wrapping wire, and the upper wrapping position of the second wrapping wire positioned at the lower position in the second wrapping wire corresponding to the adjacent even layer extends to the outer side of the upper wrapping position of the second wrapping wire positioned at the upper position;
the first wrapping wire and the second wrapping wire comprise a wrapping position, a DWS conveying line, a first conveying line and a second conveying line which are sequentially connected;
the number of the second wrapping lines corresponding to each even-numbered layer sorting trolley is multiple, the height of the output end of at least one of the second wrapping lines corresponding to each even-numbered layer sorting trolley is adjustable and can be switched to be connected with two adjacent odd-numbered layer sorting trolleys, and the conveying surface of the second conveying line of the second wrapping line with the adjustable height of the output end is always parallel to the conveying surface of the sorting trolley connected with the second conveying line;
the number of the first wrapping wires corresponding to each odd-layer sorting trolley is multiple, and the height of the output end of at least one of the first wrapping wires corresponding to each odd-layer sorting trolley is adjustable and can be switched to be connected with two adjacent even-layer sorting trolleys;
the sorting method of the multi-layer cross-belt sorting equipment comprises the following steps:
s1, placing an article on a second wrapping line with an output end height adjustable, and determining a target wrapping opening of the article according to the acquired article route;
s2, when a target packing opening is arranged at an accessible packing opening of an even-layer sorting trolley corresponding to a second packing line with an adjustable output end height, the second packing line is kept to be connected with the even-layer sorting trolley and conveys articles to the reserved sorting trolley;
s3, when the target lower package opening is not in the reachable range of the even-layer sorting trolley corresponding to the second wrapping wire with the height adjustable output end, and the target lower package opening is in the reachable lower package openings of the two adjacent odd-layer sorting trolleys, the output end of the second wrapping wire is switched to be connected with the corresponding odd-layer sorting trolley, and the articles are conveyed to the reserved odd-layer sorting trolleys;
s4, when the target lower package opening is not in the reachable range of the even-layer sorting trolley corresponding to the second package supplying line with the adjustable height of the output end, and the target lower package opening is not in the reachable lower package openings of the two adjacent odd-layer sorting trolleys, at least two times of transfer of the adjustable second package supplying lines with the adjustable heights corresponding to the plurality of even-layer sorting trolleys are used for transferring articles to the sorting trolleys of the layer corresponding to the target lower package opening.
2. The multi-layer cross-belt sorting apparatus of claim 1, wherein: the width of the output end of the first wrapping wire and the width of the output end of the second wrapping wire are not smaller than twice the width of the sorting trolley.
3. The multi-layer cross-belt sorting apparatus of claim 2, wherein: the input end and the output end of the second conveying line with the height adjustable output end are respectively provided with a laser range finder for leveling the second conveying line.
4. A multi-layer cross-belt sorting apparatus as claimed in any one of claims 1 to 3, characterised in that: the power device comprises a linear motor with fixed positions and an induction plate arranged on the bottom sorting trolley or comprises a friction wheel driven by the motor to rotate and a friction plate arranged on the bottom sorting trolley and capable of being attached to the friction wheel.
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| CN110841924A (en) | 2020-02-28 |
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