Article sorting and weighing line

Abstract

The invention discloses an article sorting and weighing line, which comprises a sorting track and a plurality of tray assemblies arranged on the sorting track and used for placing articles, the plurality of tray assemblies circularly move along the extension direction of the sorting track, and is characterized by further comprising an annular track and at least two weighing assemblies, the weighing assemblies move circularly along the annular track, and at least two weighing assemblies are in contact with the tray assembly at the same time for weighing. The weighing assemblies can move around the annular track through the annular track, so that the weighing assemblies can synchronously move along with the tray assembly and conduct weighing, the problem that in the prior art, due to the fact that the weighing assemblies are fixedly arranged on a sorting line, weighing can only be conducted one by one is solved, and the sorting and weighing efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of article weighing structures, and further to an article sorting weighing line. Background Art

[0002] With the booming development of e-commerce and the increasing popularity of Internet shopping, the express delivery industry has shown explosive growth in recent years. The volume of express delivery has increased year by year, not only breaking industry records, but also increasing the demand for sorting and weighing items in express delivery stations.

[0003] In order to achieve item weighing in the prior art, an automatic weighing device is generally added to the sorting line. When the tray carrying the items passes through the automatic weighing device, the items are automatically weighed, but the items still need to be weighed one by one, resulting in low efficiency in item sorting and weighing. Summary of the invention

[0004] The object of the present invention is to provide an article sorting and weighing line to solve the technical problem of low efficiency of article sorting and weighing in the prior art, and to greatly improve the efficiency of article sorting and weighing by weighing at least two articles at the same time.

[0005] In order to achieve the above-mentioned purpose, the present invention provides an article sorting and weighing line, comprising a sorting track and a plurality of tray assemblies for placing articles arranged on the sorting track, wherein the plurality of tray assemblies perform a circular motion along the extension direction of the sorting track, and further comprising: a circular track and at least two weighing assemblies, wherein the weighing assemblies perform a circular motion along the circular track, and at least two weighing assemblies simultaneously contact the tray assembly for weighing.

[0006] In some embodiments, a plurality of mobile carts connected end to end are provided on each circular track, and the weighing components are arranged on the mobile carts one by one and perform circular motion along the extension direction of the sorting track with the mobile carts.

[0007] In some embodiments, the mobile trolley includes a first trolley and a second trolley connected by an axis, the weighing assembly is connected to the second trolley, and vertical guide wheels are provided on both sides of the first trolley and the second trolley; the circular track includes two circular monorails, and the circular monorails are provided with annular guide grooves, the openings of the guide grooves of the two circular monorails are arranged opposite to each other, and the guide wheels are rollingly connected to the guide grooves on the corresponding sides.

[0008] In some embodiments, a first pushing surface is provided on the front side of the tray assembly along the movement direction of the tray assembly, and a second pushing surface is provided on the weighing assembly at a position corresponding to the first pushing surface; when the weighing assembly contacts the tray assembly for weighing, the tray assembly abuts against the weighing assembly and drives the weighing assembly to move synchronously.

[0009] In some embodiments, the circular track includes two linear tracks arranged in parallel and an arc track respectively connecting the ends of the two linear tracks, and the item sorting and weighing line also includes: a linear pushing assembly for driving the weighing assembly to move on the linear track located below, and the linear pushing assembly includes: a main body, along the movement direction of the weighing assembly, two ends of the main body are provided with mutually parallel first transmission shafts, and a first transmission sprocket is fixedly provided on the first transmission shaft; a first bent plate transmission chain, the first bent plate transmission chain is meshed and transmitted with the first transmission sprocket on the corresponding side; a first power drive mechanism, the first power drive mechanism is connected to any one of the first transmission shafts and drives the first transmission shaft to rotate; a first gear shaft for pushing the mobile trolley to move along the linear track, each of the first bent plate transmission chains is provided with at least one first gear shaft and the first gear shaft moves synchronously with the first bent plate transmission chain; when the first gear shaft drives the mobile trolley to move, the first gear shaft is abutted against the mobile trolley.

[0010] In some embodiments, the article sorting and weighing line further includes: an arc-shaped pushing assembly for driving the weighing assembly to move on the arc-shaped track, the arc-shaped pushing assembly being arranged on the inner side of the arc-shaped track, the arc-shaped pushing assembly including: an arc-shaped supporting plate, the arc-shaped supporting plate matching the shape of the arc-shaped track and being fixedly connected to the arc-shaped track at a corresponding position, one end of the arc-shaped supporting plate extending to the end at the corresponding position of the linear track; second transmission shafts parallel to each other are arranged at both ends of the arc-shaped supporting plate, and a second transmission sprocket is fixedly arranged on the second transmission shaft; a second bending plate Transmission chain, the second bent plate transmission chain is arranged around the circumference of the arc-shaped support plate and meshes with the two second transmission sprockets for transmission; a second power drive mechanism, the second power drive mechanism is connected to the second transmission shaft and drives the second transmission shaft to rotate; a second gear shaft is used to push the moving trolley to move from top to bottom along the arc track, at least one second gear shaft is provided on the second bent plate transmission chain and the second gear shaft moves synchronously with the second bent plate transmission chain; when the second gear shaft drives the moving trolley to move, the second gear shaft is against the moving trolley.

[0011] In some embodiments, there are two circular tracks and they are symmetrically arranged on both sides of the sorting track, the upper end surface of each of the circular tracks is provided with the lifting track, and each of the circular tracks is provided with at least two weighing assemblies, and the weighing assemblies at corresponding positions on the two circular tracks are symmetrically arranged; the weighing assembly includes a second base, a second moving structure and a weighing sensor, the second base is connected to the moving trolley, the second moving structure is connected to the second base and the second moving structure can move in a direction perpendicular to the second base, and the weighing sensor is arranged on the second moving structure; the tray assembly includes a tray, a first moving structure fixedly connected to the tray and a first moving structure connected to the tray The first base on the sorting track, the first moving structure is connected to the first base and can move in a direction perpendicular to the first base, and the tray is a two-way flip tray; when the weighing component weighs the items, the second moving structure abuts against the lifting track and is in a lifted state, the weighing sensor holds the two-way flip tray upward, and the first moving structure is also in a lifted state; when the weighing component does not weigh the items, the second moving structure abuts against the circular track and is in a normal state, the weighing sensor is separated from the two-way flip tray, and the first moving structure is also in a normal state; the lifting track can lift at least two of the second moving structures at the same time.

[0012] In some embodiments, the weighing assembly also includes a weighing block arranged on the weighing sensor, and the weighing block is inclined with a supporting surface; when the weighing assembly weighs the item, the weighing blocks of the two weighing assemblies at corresponding positions respectively support the two sides of the two-way flip tray upward through the supporting surface.

[0013] In some embodiments, the weighing assembly also includes a blocking member connected to the second base; the second pushing surface is located at an end of the blocking member away from the second base, and a second bearing is provided at the end of the blocking member having the second pushing surface, and the axis of the second bearing is vertically arranged.

[0014] In some embodiments, the item sorting and weighing line also includes two arc-shaped return plates, which are arranged on the end surfaces of the two arc-shaped tracks that are close to each other and match the shape of the arc-shaped tracks; the second base is axially connected to the blocking member, and the weighing assembly also includes a reset torsion spring arranged at the axial connection between the second base and the blocking member, and a first bearing is provided on the blocking member at a position corresponding to the return plate; when the weighing assembly moves to the return plate, the first bearing is rollingly connected to the return plate, the reset torsion spring is in a compressed state, and the distance between the blocking member and the circular track is a first distance; when the weighing assembly is a certain distance away from the return plate, the first bearing is separated from the return plate, the reset torsion spring is in a normal state, and the distance between the blocking member and the circular track is a second distance; the second distance is greater than the first distance.

[0015] In some embodiments, the second movable structure includes: a U-shaped fixed plate, the weighing sensor is connected to the inner wall of the groove of the U-shaped fixed plate; two vertically arranged second uprights, the first ends of the second uprights are fixedly connected to the two ends of the U-shaped fixed plate and pass through the second base; a lower fixed plate, the lower fixed plate is horizontally arranged and the second end of the second upright is fixedly connected to the lower fixed plate; a first return spring sleeved on the second upright, the two ends of the first return spring respectively abut against the lower fixed plate and the second base; when the weighing assembly weighs the object, the lower fixed plate abuts against the lifting track; when the weighing assembly does not weigh the object, the lower fixed plate abuts against the circular track.

[0016] In some embodiments, the circular track includes two circular monorails arranged at the same height, the upper end surface of the circular monorail away from the sorting track is provided with a lifting track, and along the movement direction of the tray assembly, the outer end surface of the rear arc track of the circular monorail is provided with an outer top track protruding inwardly; the weighing assembly includes a third base, a third moving structure and a weighing sensor, the third base is connected to the moving trolley, the third moving structure is connected to the third base and the third moving structure can move in a direction perpendicular to the third base and a direction perpendicular to the plane where the circular monorail is located, and the weighing sensor is arranged on the third moving structure; the tray assembly includes a tray, a first moving structure fixedly connected to the tray and a first base connected to the sorting track, the first moving structure is connected to the first base and the first moving structure can move in a direction perpendicular to the first base, and the tray is a one-way flip tray; before the weighing assembly weighs the items, the third moving structure respectively abuts against the circular monorail and the outer top rail, the weighing sensor is separated from the one-way flip tray, and the first moving structure is also in an extended state; when the weighing assembly weighs the items, the third moving structure respectively abuts against the lifting track and the circular monorail, the weighing sensor holds the one-way flip tray upward, and the first moving structure is also in a lifted state; the lifting track and the circular monorail can lift at least two of the third moving structures at the same time.

[0017] In some embodiments, the third movable structure includes: an inverted L-shaped movable platform, which is slidably connected to the third base and can move in a direction perpendicular to the plane of the circular monorail, and the second end of the inverted L-shaped movable platform is provided with an end plate; a second sliding block, which is arranged at the first end of the inverted L-shaped movable platform and is always in contact with the outer end surface or the outer top track of the circular monorail; a second return spring, the two ends of the second return spring are respectively connected to the end plate and the third base; a vertically arranged fourth upright pole, the first end of the fourth upright pole is connected to the weighing sensor, and the second end of the fourth upright pole passes through the inverted L-shaped movable platform and is connected to a third sliding block; a third return spring, wherein the third return spring is sleeved on the fourth vertical rod and the two ends of the third return spring are respectively abutted on the inverted L-shaped moving platform and the third sliding block; before the weighing assembly weighs the item, the second sliding block abuts on the outer top rail, the third sliding block abuts on the circular monorail, the second return spring is in a compressed state, and the third return spring is in a normal state; when the weighing assembly weighs the item, the second sliding block abuts on the circular monorail, the third sliding block abuts on the lifting rail, the second return spring is in a normal state, and the third return spring is in a compressed state.

[0018] In some embodiments, the third movable structure also includes a pushing plate, which is arranged on the side of the end plate away from the inverted L-shaped moving platform; along the movement direction of the tray assembly, the rear side of the pushing plate is provided with the second pushing surface, and the front side of the pushing plate is provided with a fifth bearing, and the axis of the fifth bearing is vertically arranged.

[0019] In some embodiments, a guide hole is provided on the first base; the first movable structure includes: a first vertical rod vertically connected to the bottom of the tray, the first vertical rod is passed through the guide hole, the first vertical rod is a cylinder or the end of the first vertical rod away from the tray is conical; a limit plate, the limit plate is connected to the end of the first vertical rod away from the tray.

[0020] Compared with the prior art, the article sorting and weighing line provided by the present invention has the following beneficial effects:

[0021] 1. The article sorting and weighing line provided by the present invention enables the weighing assembly to move around the circular track through the circular track so that the weighing assembly can move synchronously with the tray assembly and perform weighing, thereby overcoming the problem in the prior art that only one weighing can be performed due to the fixed arrangement of the weighing assembly on the sorting line, and greatly improving the sorting and weighing efficiency.

[0022] 2. In the item sorting and weighing line provided by the present invention, when the pallet is a two-way flip pallet, the lifting track can lift up at least two second moving structures at the same time, so as to achieve the weighing of at least two items at the same time. Moreover, since the pallet assembly is always located between the two circular tracks, and the weighing assemblies on the two circular tracks are symmetrically arranged, the two-way flip pallet can be lifted up from both sides at the same time during weighing, thereby reducing the shaking or tipping of the two-way flip pallet during the weighing process, avoiding items from falling, and improving the weighing stability. When the pallet is a one-way flip pallet, the third moving structure can push the weighing sensor inward along a plane perpendicular to the circular monorail to the bottom of the one-way flip pallet before weighing the one-way flip pallet, and then lower the weighing sensor and move it upward to lift the one-way flip pallet to achieve weighing, thereby reducing the risk of collision between the weighing sensor and the weighing assembly.

[0023] 3. The article sorting and weighing line provided by the present invention pushes the weighing assembly to move along the extension direction of the circular track through the linear pushing assembly. Furthermore, the weighing assembly that has just come down from the lifting track is pushed by the arc pushing assembly to move more smoothly and quickly to the linear track below, thereby improving the weighing efficiency. When the weighing assembly is on the upper linear track or the lifting track, the weighing assembly can be driven to move by the tray assembly, eliminating the power source for the movement of the weighing assembly at the upper linear track.

[0024] 4. The item sorting and weighing line provided by the present invention sets weighing components on a number of abutting moving carts, so that when any moving cart moves forward due to the force of the linear pushing component or the arc pushing component, all the moving carts on the circular track will move forward, and the circular track can be covered with moving carts to maximize the number of weighing components, thereby reducing the weighing time interval of items on adjacent tray assemblies, achieving continuous weighing, and further improving the sorting and weighing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0026] Figure 1 It is a structural diagram of the item sorting and weighing line;

[0027] Figure 2 It is a schematic diagram of the structure at the circular track;

[0028] Figure 3 It is a side view at the circular track;

[0029] Figure 4 It is the front view at the circular track;

[0030] Figure 5 It is a structural diagram of the return plate;

[0031] Figure 6 It is a schematic diagram of the structure of the mobile car;

[0032] Figure 7 is a three-dimensional schematic diagram of the second trolley;

[0033] Figure 8 is a side view of the second trolley;

[0034] Fig. 9 It is a three-dimensional schematic diagram of the first trolley;

[0035] Fig.10 is a three-dimensional schematic diagram of a tray assembly;

[0036] Fig.11 is a side view of the tray assembly;

[0037] Fig.12 It is a three-dimensional schematic diagram of the weighing component viewed from one direction;

[0038] Fig.13 It is a three-dimensional schematic diagram of the weighing assembly viewed from another direction;

[0039] Fig.14 It is a three-dimensional schematic diagram of a linear push assembly;

[0040] Fig.15 It is a three-dimensional schematic diagram of the arc-shaped push assembly;

[0041] Fig.16 It is a side view of the item sorting weighing line, in which the weighing assembly and the tray assembly are being weighed together;

[0042] Fig.17 yes Fig.16 Cross-sectional view along AA direction;

[0043] Fig.18 yes Fig.17 A local enlarged view of point B;

[0044] Fig.19 It is a structural schematic diagram of another embodiment of an article sorting and weighing line;

[0045] Fig. 20 yes Fig.19 A schematic diagram of the state of the circular track of the embodiment shown, at which the weighing assembly is about to contact the tray assembly for weighing;

[0046] Fig.21 yes Fig.19 A schematic diagram of the state of the circular track of the embodiment shown, at this time, the weighing assembly contacts the tray assembly and achieves weighing;

[0047] Fig. 22 yes Fig.19 The weighing components in the diagram are shown in a three-dimensional diagram;

[0048] Fig.23 yes Fig.19 A side view of a weighing assembly in FIG.

[0049] Fig.24 yes Fig.19 A schematic diagram of the structure of the linear push component in FIG.

[0050] Fig.25 yes Fig.19 A schematic diagram of the structure of the arc-shaped push component;

[0051] Fig.26 yes Fig.19 Side view of the mid tray assembly.

[0052] Description of Figure Numbers:

[0053] 1- sorting track, 2- tray assembly, 2a- tray, 2b- first base, 2c- first upright, 2d- first push surface, 2e- limit plate, 2f- guide cone sleeve, 3- annular track, 3a- annular monorail, 3b- guide groove, 4- lifting track, 5- weighing assembly, 5a- second base, 5b- blocking member, 5c- reset torsion spring, 5d- first baffle, 5e- second bearing, 5f- weighing sensor, 5g- weighing block, 5h- supporting surface, 5i- U-shaped fixing plate, 5j- first reset spring, 5k- linear bearing , 5l-avoidance, 5m-second upright, 5n-lower fixed plate, 5p-first sliding block, 5q-third upright, 5r-first bearing, 6-moving trolley, 6a-first trolley, 6b-second trolley, 6c-second trolley body, 6d-fixed bracket, 6e-second baffle, 6f-second wheel, 6g-second side wheel, 6h-first trolley body, 6i-widening bracket, 6j-first wheel, 6k-ear plate, 6m-car body connecting shaft, 6n-first side wheel, 7-support truss, 8-connecting plate, 9-arc push assembly, 9a-arc support plate, 9b-second curved plate transmission chain, 9c-second transmission sprocket, 9d-third bearing, 9e-second transmission shaft, 9f-second block, 9g-second block shaft, 9h-second motor, 9i-second transmission wheel, 9j-second transmission chain, 10-linear push assembly, 10a-main body, 10b-first transmission shaft, 10c-first transmission sprocket, 10d-fourth bearing, 10e-first motor, 10f-first transmission wheel, 10g-first transmission chain, 10h-first block shaft, 10i-first block, 10 j-first bent plate transmission chain, 11-return plate, 11a-arc plate, 11b-extension plate, 12-outer top rail, 13-weighing assembly, 13a-third base, 13b-inverted L-shaped mobile platform, 13c-end plate, 13d-weighing sensor, 13e-fourth vertical pole, 13f-third return spring, 13g-third sliding block, 13h-second return spring, 13i-second sliding block, 13j-push plate, 13k-third stopper, 13l-fifth bearing, 13m-slider, 13n-slide rail, 13o-support plate. DETAILED DESCRIPTION

[0054] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0055] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0056] It should be further understood that the term “and / or” used in the specification and appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0057] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0059] [Example 1]

[0060] like Figure 1-Figure 4 , Figure 19-21 As shown, Example 1 discloses a specific implementation of an article sorting and weighing line, including a sorting track 1 and a plurality of tray assemblies 2 for placing articles arranged on the sorting track 1, a circular track 3 and at least two weighing assemblies 5 / 13 ( Figure 2-Figure 3 , Figure 20-21 The weighing components in the figure are schematic and not all are drawn), a plurality of tray components 2 make a circular motion along the extension direction of the sorting track 1, and the weighing components 5 / 13 make a circular motion along the annular track 3, and at least two weighing components 5 / 13 are in contact with the tray components 2 for weighing at the same time, that is, the weighing components 5 / 13 and the tray components 2 are weighed one by one.

[0061] By setting up the circular track 3, the weighing component 5 / 13 can move around the circular track 3, so that the weighing component 5 / 13 can move synchronously with the tray component 2 and weigh the corresponding items, thereby overcoming the problem of only being able to weigh one by one due to the fixed setting of the weighing component 5 / 13 on the sorting line in the prior art, and greatly improving the sorting and weighing efficiency.

[0062] [Example 2]

[0063] Example 2 discloses another specific implementation of an article sorting and weighing line. Based on Example 1, Figure 2-Figure 4 As shown, each circular track 3 of the second embodiment is provided with a plurality of mobile carts 6 which are connected end to end, and the weighing components 5 / 13 are arranged one by one on the mobile carts 6 and perform circular motion along the extension direction of the sorting track 1 with the mobile carts 6. By covering the entire circular track 3 with the mobile carts 6, the number of weighing components 5 / 13 is maximized, thereby reducing the weighing time interval of the items on the adjacent tray components 2, achieving continuous weighing, and further improving the sorting and weighing efficiency.

[0064] Furthermore, in order to minimize the size of the annular track 3, in other embodiments, as Figure 6-Figure 9 As shown, the mobile trolley 6 can also be set as a split type, that is, the mobile trolley 6 includes a first trolley 6a and a second trolley 6b connected by an axis, the weighing assembly 5 / 13 is connected to the second trolley 6b, and vertical guide wheels are provided on both sides of the first trolley 6a and the second trolley 6b. At this time, the annular track 3 includes two annular monorails 3a, and the two annular monorails 3a are mutually connected and fixed by a connecting plate 8. An annular guide groove 3b is provided on the annular monorail 3a, and the openings of the guide grooves 3b of the two annular monorails 3a are arranged opposite to each other, and the guide wheels are rollingly connected with the guide grooves 3b on the corresponding side. Such a design can ensure the smooth movement of the mobile trolley 6 while preventing the mobile trolley 6 from falling from the annular track 3.

[0065] Specifically, the second trolley 6b includes a second trolley body 6c and a body connecting shaft 6m rotatably connected to the front and rear ends of the second trolley body 6c, and the two sides of the body connecting shaft 6m are fixedly connected to the second wheels 6f, which are included in the aforementioned guide wheels. The second trolley 6b is rollingly connected in the aforementioned guide groove 3b through four second wheels 6f. The second side wheels 6g are horizontally arranged on the left and right sides of the second trolley body 6c, and the second side wheels 6g roll against the bottom of the guide groove 3b, thereby limiting the horizontal displacement of the second trolley 6b between the two circular monorails 3a.

[0066] The first trolley 6a includes a first trolley body 6h and a first wheel 6j arranged on the first trolley body 6h through a widened bracket 6i. The first wheel 6j is included in the aforementioned guide wheel. First side wheels 6n are horizontally arranged on the left and right sides of the first trolley body 6h. The first side wheels 6n roll against the bottom of the guide groove 3b, thereby limiting the horizontal displacement of the first trolley 6a between the two circular monorails 3a. An ear plate 6k is provided at one end of the first trolley body 6h away from the first wheel 6j. The ear plate 6k is sleeved on one of the car body connecting shafts 6m of the second trolley 6b. The first trolley 6a and the second trolley 6b are connected to form a whole mobile trolley 6 through the car body connecting shaft 6m, so as to realize the smooth movement of the whole mobile trolley 6 on the circular track 3.

[0067] [Example 3]

[0068] Example 3 discloses another specific implementation of an article sorting and weighing line. On the basis of Example 2, in this embodiment, the mobile trolley 6 is a split type, and a fixed bracket 6d is provided at the bottom of the second trolley 6b.

[0069] like Figure 10-11 As shown, along the movement direction of the tray assembly 2, the front side of the tray assembly 2 is provided with a first pushing surface 2d, as shown in FIG. Figure 12-13 As shown, the weighing component 5 / 13 is provided with a second pushing surface at a position corresponding to the first pushing surface 2d. When the weighing component 5 / 13 contacts the tray component 2 for weighing, the tray component 2 abuts against the weighing component 5 / 13 and drives the weighing component 5 / 13 to move synchronously. Thus, the kinetic energy of the tray component 2 can be transferred to the weighing component 5 / 13, and the sorting efficiency is not delayed.

[0070] Further, such as Figure 2-Figure 3 , Figure 20-21 As shown, the circular track 3 includes two parallel straight tracks and arc tracks respectively connecting the ends of the two straight tracks, and the item sorting and weighing line also includes: a straight push assembly 10 for driving the weighing assembly 5 / 13 to move on the straight track located below, wherein, as Fig.14 and Fig.24As shown, the linear push assembly 10 includes a main body 10a, a first curved plate transmission chain 10j, a first power drive mechanism and a first gear shaft 10h for pushing the mobile trolley 6 to move along the linear track. Specifically, along the moving direction of the weighing assembly 5 / 13, the two ends of the main body 10a are provided with mutually parallel first transmission shafts 10b, the first transmission shaft 10b is fixedly provided with a first transmission sprocket 10c, the first curved plate transmission chain 10j is meshed with the first transmission sprocket 10c on the corresponding side for transmission, the first power drive mechanism is connected to any one of the first transmission shafts 10b and drives the first transmission shaft 10b to rotate, each first curved plate transmission chain 10j is provided with at least one first gear shaft 10h and the first gear shaft 10h moves synchronously with the first curved plate transmission chain 10j. When the first gear shaft 10h drives the mobile trolley 6 to move, the first gear shaft 10h is set against the end surface of the fixed bracket 6d of the second trolley 6b close to the first trolley 6a. In this embodiment, the first transmission shaft 10b is rotatably connected to the aforementioned main body 10a through the fourth bearing 10d.

[0071] In this embodiment, two first stop shafts 10h are provided on the first curved plate transmission chain 10j and the first stop shafts 10h are connected to the first curved plate transmission chain 10j through the first stopper 10i, and the axis distance between the two first stop shafts 10h is greater than the center distance between the two tray assemblies 2. When the moving trolley 6 moves from the arc track to the straight track, one of the first stop shafts 10h will abut against the second trolley 6b, thereby driving the second trolley 6b to move, and at this time, the other first stop shaft 10h just no longer abuts against the second trolley 6b at the corresponding position, thereby achieving the purpose of driving the moving trolley 6 and the weighing assembly 5 / 13 to move on the straight track below.

[0072] Further, such as Fig.15 and Fig.25As shown, the item sorting and weighing line also includes an arc-shaped pushing assembly 9 for driving the weighing assembly 5 / 13 to move on the arc-shaped track. The arc-shaped pushing assembly 9 is arranged on the inner side of the arc-shaped track. The arc-shaped pushing assembly includes an arc-shaped support plate 9a, two ends of the arc-shaped support plate 9a are provided with second transmission shafts 9e parallel to each other, a second curved plate transmission chain 9b, a second power drive mechanism and a second gear shaft 9g for pushing the mobile trolley 6 to move from top to bottom along the arc-shaped track, wherein the arc-shaped support plate 9a matches the shape of the arc-shaped track and is fixedly connected On the arc track at the corresponding position, one end of the arc support plate 9a extends to the end of the corresponding position of the linear track, and a second transmission sprocket 9c is fixedly provided on the second transmission shaft 9e. The second curved plate transmission chain 9b is arranged around the circumference of the arc support plate 9a and meshes with the two second transmission sprockets 9c for transmission. The second power drive mechanism is connected to the second transmission shaft 9e and drives the second transmission shaft 9e to rotate. The second curved plate transmission chain 9b is provided with at least one second gear shaft and the second gear shaft moves synchronously with the second curved plate transmission chain 9b. When the second gear shaft drives the moving trolley 6 to move, the second gear shaft is against the end surface of the fixed bracket 6d of the second trolley 6b close to the first trolley 6a. In this embodiment, the second transmission shaft 9e is rotatably connected to the arc support plate 9a through the third bearing 9d.

[0073] In this embodiment, the arc pushing assembly 9 includes two second gear shafts, and the second gear shafts are connected to the second bent plate transmission chain 9b through the second gear block 9f. When one of the second gear shafts is located at one end of the arc support plate 9a, the other second gear shaft is located at the second end of the arc support plate 9a. When the weighing assembly 5 / 13 completes weighing and moves to the arc track, the second gear shaft located above resists the moving trolley 6 and drives the moving trolley 6 to move from the top to the bottom of the arc track. Since the entire circular track 3 is covered with moving trolleys 6, the other moving trolley 6 that loses the push of the second gear shaft located below will move forward along the straight track under the push of the moving trolley 6 behind until it moves to the straight pushing assembly 10. The first gear shaft 10h will resist the fixed bracket 6d and continue to push the moving trolley 6 and the weighing assembly 5 / 13 to move.

[0074] Furthermore, a second baffle plate 6e is provided on the end surface of the fixed bracket 6d close to the first trolley 6a, and the second baffle plate 6e prevents the fixed bracket 6d from hard contact with the first gear shaft 10h or the second gear shaft, thereby reducing noise and extending service life.

[0075] To summarize, the power sources for the weighing assembly 5 / 13 to perform circular motion along the annular track 3 are the tray assembly 2, the linear pushing assembly 10 and the arc-shaped pushing assembly 9, respectively. The aforementioned three power sources act on the weighing assembly 5 / 13 on the upper linear track, the weighing assembly 5 / 13 on the upper linear track and the weighing assembly 5 / 13 on the arc-shaped track, respectively. In other embodiments, since the mobile trolley 6 is the first to be connected, even if only any one of the power sources is used, it is acceptable and will not be repeated here.

[0076] [Example 4]

[0077] Example 4 discloses another specific implementation of an article sorting and weighing line. Based on Example 3, Figure 2-Figure 4 As shown, the tray 2a in the tray assembly 2 of Example 4 is a two-way flip tray, and there are two annular tracks 3 of Example 4 and they are symmetrically arranged on both sides of the sorting track 1. The upper end surface of each annular track 3 is provided with a lifting track 4. In this embodiment, the lifting track 4 is arranged on the upper end surface of the upper linear track, and at least two weighing assemblies 5 are arranged on each annular track 3. The weighing assemblies 5 at corresponding positions on the two annular tracks 3 are symmetrically arranged. In this embodiment, when there are 6 mobile carts 6 connected end to end on the annular track 3, 6 weighing assemblies 5 are connected to each annular track 3, and the mobile carts 6 on the two annular tracks 3 move relatively synchronously on the corresponding annular tracks 3. In other embodiments, the number of mobile carts 6 and weighing assemblies 5 on the annular track 3 can also be other numbers, for example, 8, 10 or even more, which are arranged according to actual conditions and are not limited here.

[0078] Specifically, the annular track 3 is connected to the sorting track 1 through the supporting truss 7, and the lifting track 4 includes a horizontal extension section in the middle and transition sections at both ends, so that the weighing component 5 can move more smoothly from the straight track to the lifting track 4, and then move smoothly from the lifting track 4 to the straight track after weighing.

[0079] like Figure 12-13 As shown, the weighing assembly 5 includes a second base 5a, a second mobile structure and a weighing sensor 5f, the second base 5a is connected to the moving trolley 6, the second mobile structure is connected to the second base 5a and the second mobile structure can move in a direction perpendicular to the second base 5a, and the weighing sensor 5f is arranged on the second mobile structure;

[0080] Specifically, the aforementioned second movable structure includes a U-shaped fixed plate 5i, two second vertical poles 5m arranged vertically, a lower fixed plate 5n, and a first reset spring 5j sleeved on the aforementioned second vertical pole 5m, wherein the weighing sensor 5f is connected to the inner wall of the groove of the U-shaped fixed plate 5i, the first end of the second vertical pole 5m is fixedly connected to the two ends of the U-shaped fixed plate 5i and penetrates the second base 5a, the lower fixed plate 5n is arranged horizontally and the second end of the second vertical pole 5m is fixedly connected to the lower fixed plate 5n, and the two ends of the first reset spring 5j are respectively abutted on the lower fixed plate 5n and the second base 5a. In this embodiment, the two ends of the U-shaped fixed plate 5i are also provided with a connecting portion extending backwards, and the second vertical pole 5m is vertically fixedly connected to the bottom of the connecting portion at the corresponding end.

[0081] When the weighing assembly 5 weighs the items, the lower fixed plate 5n abuts against the lifting track 4 ; when the weighing assembly 5 does not weigh the items, the lower fixed plate 5n abuts against the annular track 3 .

[0082] More preferably, the second vertical rod 5m is connected to the second base 5a via a linear bearing 5k, and the linear bearing 5k can make the second vertical rod 5m move more smoothly.

[0083] More preferably, a polyurethane pad is also provided on the second vertical rod 5m, and the polyurethane pad is located between the linear bearing 5k and the U-shaped fixing plate 5i, so as to reduce the noise generated when the linear bearing 5k collides with the U-shaped fixing plate 5i.

[0084] In this embodiment, Figure 4 , Fig.14 As shown, the linear push assembly is arranged between two annular tracks 3, and both ends of the two first transmission shafts 10b of the linear push assembly 10 are provided with first transmission sprockets 10c, so that there are also two first curved plate transmission chains 10j, and each curved plate transmission chain is provided with a first gear shaft 10h, so that the moving carts 6 on the two annular tracks 3 can be synchronously driven to move synchronously. Specifically, the first power drive mechanism includes a first motor 10e, a first transmission wheel 10f connected to the power output shaft of the first motor 10e and the first transmission shaft 10b, and a first transmission chain 10g meshing with the first transmission wheel 10f. The transmission process is specifically as follows: the first transmission wheel 10f is driven to rotate by the first motor 10e, thereby driving the first transmission chain 10g to move, and finally the first transmission shaft 10b is driven to rotate by the first transmission wheel 10f connected to the first transmission shaft 10b.

[0085] like Fig.15As shown, the arc-shaped pushing assembly 9 includes two arc-shaped support plates 9a, and the two arc-shaped support plates 9a are respectively arranged on the arc-shaped tracks of the two annular tracks 3. The second transmission shafts 9e at the lower ends of the two arc-shaped support plates 9a are the same and are connected to the second power drive mechanism. Specifically, the second power drive mechanism includes a second motor 9h, a second transmission wheel 9i connected to the power output shaft of the second motor 9h and the second transmission shaft 9e, and a second transmission chain 9j meshing with the second transmission wheel 9i. The transmission process is specifically as follows: the second transmission wheel 9i is driven to rotate by the second motor 9h, thereby driving the second transmission chain 9j to move, and finally the second transmission shaft 9e is driven to rotate by the second transmission wheel 9i connected to the second transmission shaft 9e.

[0086] Further, such as Figure 12-13 As shown, a first sliding block 5p is provided on the lower fixed plate 5n, and a side of the first sliding block 5p away from the lower fixed plate 5n has an arc surface. When the weighing assembly 5 weighs the object, the arc surface of the first sliding block 5p abuts against the lifting track 4; when the weighing assembly 5 does not weigh the object, the arc surface of the first sliding block 5p abuts against the annular track 3. In this embodiment, the contact area is reduced by the arc surface, so that the weighing assembly 5 can move more smoothly on the annular track 3.

[0087] like Figure 10-11 As shown, the tray assembly 2 includes a tray 2a, a first movable structure fixedly connected to the tray 2a, and a first base 2b connected to the sorting track 1, the first movable structure is connected to the first base 2b and can move in a direction perpendicular to the first base 2b.

[0088] Specifically, a guide hole is provided on the first base 2b, and the aforementioned first movable structure includes a first vertical rod 2c and a limit plate 2e vertically connected to the bottom of the pallet 2a, wherein the first vertical rod 2c is passed through the guide hole and the first vertical rod 2c is a cylinder, and the limit plate 2e is connected to the end of the first vertical rod 2c away from the pallet 2a, thereby limiting the movement stroke of the first vertical rod 2c in a direction perpendicular to the first base 2b, preventing the weighing assembly 5 from pushing the first vertical rod 2c out of the guide hole, thereby causing the two-way flip pallet to fall.

[0089] In other embodiments, the end of the first vertical rod 2c away from the tray 2a may also be tapered, which will not be described in detail here.

[0090] like Figure 16-Figure 18 As shown, when the weighing assembly 5 weighs the item, the second moving structure abuts against the lifting track 4 and is in a lifted state, the weighing sensor 5f holds the two-way turning tray upward, and the first moving structure is also in a lifted state;

[0091] When the weighing assembly 5 does not weigh items, the second movable structure abuts against the annular track 3 and is in a normal state, the weighing sensor 5f is separated from the two-way flip tray, the first movable structure is also in a normal state, and the lifting track 4 can lift at least two second movable structures at the same time.

[0092] Since the lifting track 4 can lift the two second moving structures at the same time, at least two weighing sensors 5f can be brought into contact with the corresponding two-way turning trays to achieve the purpose of weighing.

[0093] [Example 5]

[0094] Example 5 discloses another specific implementation of an article sorting and weighing line. Based on Example 4, Figure 12-13 As shown, the weighing assembly 5 of the embodiment 5 also includes a weighing block 5g arranged on the weighing sensor 5f, and the weighing block 5g is inclinedly provided with a supporting surface 5h. When the weighing assembly 5 weighs the items, the weighing blocks 5g of the two weighing assemblies 5 at the corresponding positions respectively hold up the two sides of the two-way turning tray through the supporting surface 5h. Since the tray assembly 2 is always located between the two annular tracks 3, and the weighing assemblies 5 on the two annular tracks 3 are symmetrically arranged, the two-way turning tray can be lifted from both sides at the same time during weighing, reducing the shaking or overturning of the two-way turning tray during the weighing process, and preventing items from falling.

[0095] [Example 6]

[0096] Example 6 discloses another specific implementation of an article sorting and weighing line. Based on Example 4 or Example 5, Figure 12-13 As shown, the weighing assembly 5 further includes a blocking member 5b, which is connected to the second base 5a.

[0097] The second pushing surface is located at the end of the blocking member 5b away from the second base 5a, and the end of the blocking member 5b provided with the second pushing surface is provided with a second bearing 5e, and the axis of the second bearing 5e is vertically arranged. The second bearing 5e can prevent the end of the blocking member 5b away from the second base 5a from being stuck by the tray assembly 2, thereby ensuring that the first pushing surface 2d can contact the second pushing surface smoothly.

[0098] Furthermore, a first baffle plate 5d is disposed on the second pushing surface of the blocking member 5b, thereby reducing noise when the first pushing surface 2d touches the second pushing surface and avoiding hard contact between the two.

[0099] Further, such as Figure 5 , Figure 12-13As shown, the item sorting and weighing line also includes two arc-shaped return plates 11, which are arranged on the end faces of the two arc-shaped tracks that are close to each other and match the shape of the arc-shaped tracks. The aforementioned second base 5a is axially connected to the blocking member 5b, and the weighing assembly 5 also includes a return torsion spring 5c ​​arranged at the axial connection between the second base 5a and the blocking member 5b, and a first bearing 5r is arranged at the position of the blocking member 5b corresponding to the return plate 11. In this embodiment, the first bearing 5r is connected to the blocking member 5b through the third vertical rod 5q. Specifically, the first end of the third vertical rod 5q is connected to the blocking member 5b, and the second end of the third vertical rod 5q is sleeved with the first bearing 5r, and the inner ring of the first bearing 5r is fixedly connected to the third vertical rod 5q.

[0100] When the weighing assembly 5 moves to the return plate 11, the first bearing 5r is connected to the return plate 11 in a rolling manner, the return torsion spring 5c ​​is in a compressed state, and the distance between the blocking member 5b and the annular track 3 is the first distance; when the weighing assembly 5 is a certain distance away from the return plate 11, the first bearing 5r is separated from the return plate 11, the return torsion spring 5c ​​is in a normal state, and the distance between the blocking member 5b and the annular track 3 is the second distance, which is greater than the first distance. Therefore, when the weighing assembly 5 is not in contact with the tray assembly 2 for weighing, the blocking member 5b is stored as close to the annular track 3 as possible, reducing the possibility of collision between the blocking member 5b and the lower structure of the tray assembly 2.

[0101] Specifically, Figure 5 As shown, the return plate 11 includes an arc plate 11a and an extension plate 11b connected to both ends of the arc plate 11a, and the extension plate 11b gradually moves away from the circular track 3 in the direction away from the arc plate 11a. In this embodiment, the first bearing 5r is connected to the inner side of the return plate 11 by rolling, so that the blocking member 5b is moved toward the circular track 3 on the corresponding side, thereby preventing the weighing assembly 5 from colliding with the lower structure of the tray assembly 2 on the sorting track 1 before weighing. When the weighing assembly 5 gradually moves onto the lifting track 4, the first bearing 5r rolls from the arc plate 11a to the extension plate 11b and then away from the arc plate 11a. Due to the loss of the force of the return plate 11 on the first bearing 5r, the return spring returns to the normal state from the compressed state, thereby driving the blocking member 5b to rotate in the direction away from the circular track 3 to reset. When the blocking member 5b is reset successfully, the first push surface 2d contacts the second push surface, so that the tray assembly 2 drives the weighing assembly 5 to move synchronously.

[0102] Better, such as Figure 12-13 As shown, a avoidance structure is provided at the position of the blocking member 5b corresponding to the return plate 11. Specifically, a avoidance opening 51 is opened on the side of the blocking member 5b. When the first bearing 5r is rollingly connected with the return plate 11, the avoidance opening 51 can leave more space for the return plate 11, and the two will not collide.

[0103] [Example 7]

[0104] Example 7 discloses another specific implementation of an article sorting and weighing line. Based on Example 3, Figure 19-21 As shown, the pallet 2a in the pallet assembly 2 of Example 7 is a one-way flip pallet, and the annular track 3 of Example 7 includes two annular monorails 3a arranged at the same height. Along the movement direction of the pallet assembly 2, the outer end surface of the rear arc track of the annular monorail 3a is provided with an outer top track 12 protruding inward.

[0105] like Figure 22-23 As shown, the weighing assembly 13 includes a third base 13a, a third mobile structure and a weighing sensor 13d. The third base 13a is connected to the moving trolley 6. The third mobile structure is connected to the third base 13a and can move in a direction perpendicular to the third base 13a and a direction perpendicular to the plane of the circular monorail 3a. The weighing sensor 13d is arranged on the third mobile structure.

[0106] Specifically, Figure 22-23 As shown, the third mobile structure includes an inverted L-shaped mobile platform 13b, a second sliding block 13i, a second return spring 13h, a fourth vertical rod 13e and a third return spring 13f, wherein the inverted L-shaped mobile platform 13b is slidably connected to the third base 13a and can move in a direction perpendicular to the plane where the circular monorail 3a is located. In this embodiment, the inverted L-shaped mobile platform 13b and the third base 13a are slidably connected through a slide rail 13n and a slider 13m, wherein the extension direction of the slide rail 13n is perpendicular to the plane where the circular monorail 3a is located, and the second end of the inverted L-shaped mobile platform 13b is provided with a vertically arranged end plate 13c. The second sliding block 13i is arranged at the first end of the inverted L-shaped mobile platform 13b and is always in contact with the outer end surface or the outer top track 12 of the circular monorail 3a, and the two ends of the second return spring 13h are respectively connected to the end plate 13c and the third base 13a. In this embodiment, the end of the second sliding block 13i away from the end plate 13c is provided with an arc surface.

[0107] The first end of the fourth vertical rod 13e is connected to the weighing sensor 13d, the second end of the fourth vertical rod 13e passes through the inverted L-shaped mobile platform 13b and is connected to the third sliding block 13g. In this embodiment, the end of the third sliding block 13g away from the fourth vertical rod 13e is provided with an arc surface, the third return spring 13f is sleeved on the fourth vertical rod 13e and the two ends of the third return spring 13f are respectively abutted on the inverted L-shaped mobile platform 13b and the third sliding block 13g.

[0108] like Fig.26As shown, the tray assembly 2 includes a tray 2a, a first movable structure fixedly connected to the tray 2a, and a first base 2b connected to the sorting track 1, the first movable structure is connected to the first base 2b and can move in a direction perpendicular to the first base 2b.

[0109] Specifically, a guide hole is provided on the first base 2b, and the aforementioned first movable structure includes a first vertical rod 2c and a limit plate 2e vertically connected to the bottom of the pallet 2a, wherein the first vertical rod 2c is passed through the guide hole and the first vertical rod 2c is a cylinder, and the limit plate 2e is connected to the end of the first vertical rod 2c away from the pallet 2a, thereby limiting the movement stroke of the first vertical rod 2c in a direction perpendicular to the first base 2b, preventing the weighing assembly 13 from pushing the first vertical rod 2c out of the guide hole, thereby causing the one-way flip pallet to fall.

[0110] In other embodiments, the end of the first vertical rod 2c away from the tray 2a may also be tapered, which will not be described in detail here.

[0111] When the weighing assembly 13 weighs the item, the second sliding block 13i abuts against the circular monorail 3a, the third sliding block 13g abuts against the lifting track 4, the second return spring 13h is in a normal state, and the third return spring 13f is in a compressed state;

[0112] Before the weighing assembly 13 weighs the items, the second sliding block 13i abuts against the outer top rail 12, the third sliding block 13g abuts against the annular monorail 3a, the second return spring 13h is in compression, and the third return spring 13f is in a normal state, that is, before the weighing assembly 13 weighs the items, the third moving structure abuts against the annular monorail 3a and the outer top rail 12 respectively, the weighing sensor 13d is separated from the one-way flip tray, and the first moving structure is also in an extended state. Specifically, before the weighing assembly 13 is ready to contact the tray assembly 2 for weighing, the second sliding block 13i first moves on the outer top rail 12 to the outer end surface of the circular monorail 3a, so that the weighing sensor 13d is moved to the bottom of the tray assembly 2 and the compression potential energy of the second return spring 13h is released, and then the third sliding block 13g moves from the circular monorail 3a to the lifting rail 4, thereby pushing the weighing sensor 13d upward and compressing the third return spring 13f, so that the weighing sensor 13d contacts the tray assembly 2 for weighing, that is, when the weighing assembly 13 weighs the items, the third moving structure respectively abuts against the lifting rail 4 and the circular monorail 3a, the weighing sensor 13d supports the one-way flip tray upward, and the first moving structure is also in a lifted state.

[0113] When weighing is completed, as the weighing assembly 13 continues to move forward, the third sliding block 13g moves from the lifting track 4 to the circular monorail 3a, so that the weighing sensor 13d moves downward to separate from the one-way flip tray and releases the compression potential energy of the third reset spring 13f, and then the weighing sensor 13d moves vertically away from the one-way flip tray.

[0114] The lifting track 4 and the circular monorail 3a can lift at least two third moving structures simultaneously, thereby achieving synchronous weighing of the items on at least two one-way flip trays.

[0115] Furthermore, a support plate 13o may be provided on the upper end surface of the weighing sensor 13d, and the support plate 13o may transfer the weight of the items on the tray 2a to the weighing sensor 13d, thereby making the weighing of the weighing sensor 13d more accurate.

[0116] [Example 8]

[0117] Example 8 discloses another specific implementation of an article sorting and weighing line. Based on Example 7, Figure 22-Figure 23 As shown, the third moving structure of Example 8 further includes a push plate 13j, which is arranged on the side of the end plate 13c away from the inverted L-shaped moving platform 13b. Along the moving direction of the tray assembly 2, a second push surface is arranged at the rear side of the push plate 13j, and a third stopper 13k for contacting the first push surface 2d is arranged on the second push surface, and a fifth bearing 13l is arranged at the front side of the push plate 13j, and the axis of the fifth bearing 13l is arranged vertically, so that the push plate 13j and the tray assembly 2 are prevented from being stuck to each other by the fifth bearing 13l.

[0118] [Example 9]

[0119] Example 9 discloses another specific implementation of an article sorting and weighing line. Based on any one of Examples 4-8, Fig.11 , Fig.26 As shown, the end of the first vertical rod 2c in Example 9 away from the tray 2a is tapered, and a guide cone sleeve 2f is provided at the guide hole, and the guide cone sleeve 2f includes a fixed block and a conical tube arranged on the aforementioned fixed block, the hollow part of the conical tube passes through the aforementioned fixed block, one side of the fixed block is fixedly attached to the first base 2b and the conical tube is inserted into the guide hole, and the first vertical rod 2c is penetrated in the aforementioned hollow part to reduce the collision between the first vertical rod 2c and the first base 2b, and at the same time, the guide cone sleeve 2f can guide the first vertical rod 2c to reduce the probability of getting stuck here.

Claims

1. An article sorting and weighing line, comprising a sorting track and a plurality of tray assemblies arranged on the sorting track for placing articles, wherein the plurality of tray assemblies perform a cyclic motion along the extension direction of the sorting track, characterized in that: Also includes: The annular track and at least two weighing components are provided. The weighing components perform a circular motion along the annular track. At least two weighing components are in contact with the tray component at the same time for weighing.

2. The article sorting and weighing line according to claim 1, characterized in that: A plurality of mobile carts are arranged on each circular track, and the weighing components are arranged on the mobile carts one by one and perform circular motion along the extension direction of the sorting track with the mobile carts.

3. The article sorting and weighing line according to claim 2, characterized in that: The mobile trolley comprises a first trolley and a second trolley connected by shafts, the weighing assembly is connected to the second trolley, and both sides of the first trolley and the second trolley are provided with vertical guide wheels; The annular track comprises two annular monorails, annular guide grooves are provided on the annular monorails, the openings of the guide grooves of the two annular monorails are arranged opposite to each other, and the guide wheels are rollingly connected to the guide grooves on the corresponding sides.

4. The article sorting and weighing line according to claim 2, characterized in that: Along the movement direction of the tray assembly, a first pushing surface is provided on the front side of the tray assembly, and a second pushing surface is provided at a position of the weighing assembly corresponding to the first pushing surface; When the weighing assembly contacts the tray assembly for weighing, the tray assembly abuts against the weighing assembly and drives the weighing assembly to move synchronously.

5. The article sorting and weighing line according to claim 4, characterized in that: The circular track includes two linear tracks arranged in parallel and arc tracks respectively connecting the ends of the two linear tracks. The article sorting and weighing line also includes: A linear push assembly for driving the weighing assembly to move on a linear track located below, the linear push assembly comprising: A main body, along the movement direction of the weighing assembly, two ends of the main body are provided with mutually parallel first transmission shafts, and a first transmission sprocket is fixedly provided on the first transmission shaft; A first bent plate transmission chain, wherein the first bent plate transmission chain is meshed and transmitted with the first transmission sprocket on the corresponding side; A first power driving mechanism, the first power driving mechanism is connected to any one of the first transmission shafts and drives the first transmission shaft to rotate; A first stop shaft for driving the moving trolley to move along the linear track, each of the first bent plate transmission chains is provided with at least one first stop shaft and the first stop shaft moves synchronously with the first bent plate transmission chain; When the first gear shaft drives the moving trolley to move, the first gear shaft is abutted against the moving trolley.

6. The article sorting and weighing line according to claim 5, characterized in that: Also includes: An arc-shaped pushing assembly for driving the weighing assembly to move on the arc-shaped track, wherein the arc-shaped pushing assembly is arranged on the inner side of the arc-shaped track, and the arc-shaped pushing assembly comprises: An arc-shaped support plate, the arc-shaped support plate matches the shape of the arc-shaped track and is fixedly connected to the arc-shaped track at a corresponding position, and one end of the arc-shaped support plate extends to the end of the linear track at a corresponding position; Two ends of the arc-shaped support plate are provided with second transmission shafts parallel to each other, and a second transmission sprocket is fixedly provided on the second transmission shaft; A second bent plate transmission chain, the second bent plate transmission chain is arranged around the circumference of the arc-shaped support plate and meshes with the two second transmission sprockets for transmission; a second power drive mechanism, the second power drive mechanism is connected to the second transmission shaft and drives the second transmission shaft to rotate; A second stop shaft for driving the moving trolley to move from top to bottom along the arc track, wherein at least one second stop shaft is provided on the second bent plate transmission chain and the second stop shaft moves synchronously with the second bent plate transmission chain; When the second gear shaft drives the moving trolley to move, the second gear shaft is abutted against the moving trolley.

7. The article sorting and weighing line according to claim 6, characterized in that: There are two circular tracks, which are symmetrically arranged on both sides of the sorting track. The upper end surface of each circular track is provided with the lifting track, and each circular track is provided with at least two weighing components. The weighing components at corresponding positions on the two circular tracks are symmetrically arranged. The weighing assembly comprises a second base, a second mobile structure and a weighing sensor, wherein the second base is connected to the mobile trolley, the second mobile structure is connected to the second base and the second mobile structure can move in a direction perpendicular to the second base, and the weighing sensor is arranged on the second mobile structure; The tray assembly includes a tray, a first moving structure fixedly connected to the tray, and a first base connected to the sorting track, the first moving structure is connected to the first base and can move in a direction perpendicular to the first base, and the tray is a two-way flip tray; When the weighing assembly weighs the item, the second moving structure abuts against the lifting track and is in a lifted state, the weighing sensor holds the two-way turning tray upward, and the first moving structure is also in a lifted state; When the weighing assembly does not weigh items, the second moving structure abuts against the annular track and is in a normal state, the weighing sensor is separated from the two-way turning tray, and the first moving structure is also in a normal state; The lifting track can lift at least two of the second moving structures simultaneously.

8. The article sorting and weighing line according to claim 7, characterized in that: The weighing assembly further comprises a weighing block disposed on the weighing sensor, wherein the weighing block is obliquely provided with a supporting surface; When the weighing assembly weighs the article, the weighing blocks of the two weighing assemblies at corresponding positions respectively support the two sides of the two-way turning tray upwards through the supporting surfaces.

9. The article sorting and weighing line according to claim 7, characterized in that: The weighing assembly further includes a blocking member connected to the second base; The second pushing surface is located at one end of the blocking member away from the second base, and the end of the blocking member provided with the second pushing surface is provided with a second bearing, and the axis of the second bearing is vertically arranged.

10. The article sorting and weighing line according to claim 9, characterized in that: It also includes two arc-shaped return plates, which are arranged on the end surfaces of the two arc-shaped tracks that are close to each other and match the shapes of the arc-shaped tracks; The second base is axially connected to the blocking member, and the weighing assembly further comprises a return torsion spring arranged at the axial connection between the second base and the blocking member, and a first bearing is arranged at a position on the blocking member corresponding to the return plate; When the weighing assembly moves to the return plate, the first bearing is rollingly connected to the return plate, the return torsion spring is in a compressed state, and the distance between the blocking member and the annular track is a first distance; When the weighing assembly is a certain distance away from the return plate, the first bearing is separated from the return plate, the return torsion spring is in a normal state, and the distance between the blocking member and the annular track is a second distance; The second distance is greater than the first distance.

11. The article sorting and weighing line according to claim 7, characterized in that: The second mobile structure includes: A U-shaped fixing plate, wherein the weighing sensor is connected to the inner wall of the groove of the U-shaped fixing plate; Two second vertical poles are arranged vertically, wherein the first ends of the second poles are fixedly connected to the two ends of the U-shaped fixing plate and pass through the second base; A lower fixing plate, the lower fixing plate is horizontally arranged and the second end of the second vertical rod is fixedly connected to the lower fixing plate; a first return spring sleeved on the second upright pole, wherein two ends of the first return spring abut against the lower fixing plate and the second base respectively; When the weighing assembly weighs the item, the lower fixing plate abuts against the lifting track; When the weighing assembly does not weigh items, the lower fixing plate abuts against the annular track.

12. The article sorting and weighing line according to claim 11, characterized in that: A first sliding block is disposed on the lower fixed plate, and a side of the first sliding block away from the lower fixed plate has an arc surface; When the weighing assembly weighs the item, the arc surface of the first sliding block abuts against the lifting track; When the weighing assembly does not weigh an item, the arc surface of the first sliding block abuts against the annular track.

13. The article sorting and weighing line according to claim 6, characterized in that: The circular track includes two circular monorails arranged at the same height, the upper end surface of the circular monorail away from the sorting track is provided with a lifting track, and along the movement direction of the tray assembly, the outer end surface of the rear arc track of the circular monorail is provided with an outer top track protruding inwardly; The weighing assembly includes a third base, a third moving structure and a weighing sensor, wherein the third base is connected to the moving trolley, the third moving structure is connected to the third base and can move along a direction perpendicular to the third base and a direction perpendicular to the plane where the circular monorail is located, and the weighing sensor is arranged on the third moving structure; The tray assembly includes a tray, a first moving structure fixedly connected to the tray, and a first base connected to the sorting track, the first moving structure is connected to the first base and can move in a direction perpendicular to the first base, and the tray is a one-way flip tray; Before the weighing assembly weighs the item, the third moving structure abuts against the annular monorail and the outer top rail respectively, the weighing sensor is separated from the one-way flip tray, and the first moving structure is also in an extended state; When the weighing assembly weighs the item, the third moving structure abuts against the lifting track and the circular monorail respectively, the weighing sensor holds the one-way flip tray upward, and the first moving structure is also in a lifted state; The lifting track and the circular monorail can lift at least two of the third moving structures simultaneously.

14. The article sorting and weighing line according to claim 13, characterized in that: The third mobile structure comprises: an inverted L-shaped mobile platform, the inverted L-shaped mobile platform is slidably connected to the third base and can move in a direction perpendicular to the plane where the circular monorail is located, and an end plate is provided at the second end of the inverted L-shaped mobile platform; a second sliding block, the second sliding block being arranged at the first end of the inverted L-shaped moving platform and always abutting against the outer end surface or the outer top track of the annular monorail; a second return spring, wherein two ends of the second return spring are respectively connected to the end plate and the third base; a fourth vertical pole arranged vertically, wherein a first end of the fourth vertical pole is connected to the weighing sensor, and a second end of the fourth vertical pole passes through the inverted L-shaped mobile platform and is connected to a third sliding block; a third return spring, wherein the third return spring is sleeved on the fourth upright pole and two ends of the third return spring are respectively abutted against the inverted L-shaped moving platform and the third sliding block; Before the weighing assembly weighs an item, the second sliding block abuts against the outer top rail, the third sliding block abuts against the annular monorail, the second return spring is in compression, and the third return spring is in a normal state; When the weighing assembly weighs an item, the second sliding block abuts against the circular monorail, the third sliding block abuts against the lifting track, the second return spring is in a normal state, and the third return spring is in a compressed state.

15. The article sorting and weighing line according to claim 14, characterized in that: The third moving structure further comprises a pushing plate, and the pushing plate is arranged on a side of the end plate away from the inverted L-shaped moving platform; Along the moving direction of the tray assembly, the rear side of the push plate is provided with the second push surface, and the front side of the push plate is provided with a fifth bearing, and the axis of the fifth bearing is vertically arranged.

16. The article sorting and weighing line according to any one of claims 7 to 15, characterized in that: The first base is provided with a guide hole; The first mobile structure includes: A first upright pole vertically connected to the bottom of the tray, the first upright pole is inserted into the guide hole, the first upright pole is a cylinder or the end of the first upright pole away from the tray is conical; a limiting plate, the limiting plate is connected to the end of the first upright pole away from the tray.

Images