A sorting and packaging system for multiple goods in a single order and its usage method

Abstract

The present invention relates to a sorting and packaging system for multiple goods in a single order, comprising a seeding wall unit, a bagging unit and a boxing unit, characterized in that: the seeding wall unit comprises a rotatable circular bracket, and a plurality of lifting and conveying mechanisms are arranged on the outer surface of the circular bracket, each lifting and conveying mechanism can receive the goods and rotate with the rotation of the circular bracket, and the lifting and conveying mechanism can lift the goods to a suitable vertical position and convey them to a corresponding cargo basket. The present invention combines the seeding wall unit, the automatic basket changing unit, the detection and placement unit, the pre-packaging unit, the bagging unit and the boxing unit with each other and interconnects them through conveying rollers or conveyor belts, the whole process is completed automatically, and a packaging box of suitable size can be selected and opened in advance, thereby improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of improvement of the sowing wall structure, in particular to a sorting and packaging system for single order and multiple goods and its using method. Background Art

[0002] Online shopping is a shopping form often used in people's daily life. A large number of orders are generated every day and need to be processed. Its general process includes a selection process, an e-commerce sorting and packaging process, and a logistics transportation process. Among them, the sorting and packaging of single order and multiple goods in the e-commerce sorting and packaging process is the focus of the warehouse processing business, accounting for nearly 70% of the total volume. It includes the centralized picking of order goods, the sorting and basket loading link according to the order sowing, the basket transportation link, the bagging or boxing link, and the conveying link. The centralized picking link of order goods refers to taking out the goods of multiple orders from the warehouse at one time. The sorting and basket loading link according to the order sowing means sorting all the goods involved in the order on the sowing wall and loading them into a basket. The basket transportation link means that the basket filled with goods is automatically conveyed to the bagging or boxing link; the bagging or boxing link is to load the goods into a packaging bag or box, then seal it and complete label pasting and other processes. Finally, the packaging bag or box is conveyed away by the conveying link. Conveyor rollers and conveyor belts are arranged between the above-mentioned links to facilitate transmission.

[0003] In actual use, it is found that the existing sorting and packaging process has the following problems:

[0004] 1. In the sorting and basket loading link of order goods, a sowing wall is often used. Its general structure includes a straight-line arrangement of cabinets. The cabinets are provided with separate spaces for accommodating multiple rows and columns. Each space is used to place baskets. A conveyer cart that can move automatically is arranged beside the cabinets. Operators manually or automatically place the goods on the conveyer cart by an automatic sorting device. The conveyer cart moves to the baskets at the appropriate rows and columns and pushes the goods into the baskets. Since the cabinets are arranged in a straight line, it occupies a large area, has low sorting efficiency, and the conveyer cart beside the cabinets and its attached equipment are not easy to maintain and replace, which is not suitable for some e-commerce companies with small working site areas. Those e-commerce companies that are preparing to update their equipment but are limited by the site area cannot use it at all.

[0005] 2. The replacement of baskets in the sorting and basket loading link of order goods is an important link. Its general process is as follows: When all the items in a certain basket are placed, the color of the lamp set at the position corresponding to the basket on the basket rack changes. At this time, the operator can manually remove the placed basket and place it on the packaging line body or on the conveyor rollers or conveyor belts that convey to the packaging line body, and then place an empty basket, or after all the baskets on the entire basket rack are placed, the operator moves the entire basket rack to another work station and moves the basket rack with empty baskets placed to the sorting position. However, the manual basket replacement method has the problem of occupying labor and affecting work efficiency.

[0006] 3. In the bagging or boxing process, the goods of each order are separately placed in a basket and automatically conveyed to the above two workstations according to the order. Previously, the manual method was often used, that is, the goods were manually placed into the packing box according to their sizes. Sometimes, the selected packing box was not of the appropriate size, resulting in the problem of having to take out the goods and replace the packing box, which would reduce work efficiency. Some automatic equipment developed by manufacturers can stack automatically, but the structure is relatively complex and does not cooperate well with other equipment in the whole line.

[0007] 4. Before the bagging or boxing process, the goods will be pre-packaged. That is, the goods with a large area are placed on a pallet, and then the smaller items are placed on it in turn. Then the whole is put into a packing machine and wrapped with plastic film so that multiple goods form an integral shape, and then it is conveyed to the boxing line to complete boxing and subsequent processing. Some e-commerce companies use the manual operation method, that is, the combined pallet is placed on a film wrapping machine. After the film of the film wrapping machine is wrapped, it is conveyed away through conveying rollers or a conveyor belt. Some e-commerce companies use a conveyor belt to convey it to the film wrapping machine, and then convey it away after wrapping. The manual method obviously has a low work efficiency, and the conveyor belt method is not easy to control the position of the pallet, resulting in problems such as the winding position being too far forward or too far back when the film is wound.

[0008] In summary, in each link of the above e-commerce sorting and packaging process, there are problems that affect work efficiency and require too much manual labor. The problems in each link will accumulate and cause the whole process to be unsmooth. There is an urgent need for a system and usage method that can optimize the whole process. Summary of the Invention

[0009] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a sorting and packaging system for multiple goods of a single order. The present invention combines a sowing wall unit, an automatic basket-changing unit, a detection and placement unit, a pre-packaging unit, a bagging unit, and a boxing unit and interconnects them through conveying rollers or a conveyor belt. The whole process is automatically completed, and a packing box with a suitable size can be selected and the box can be opened in advance, improving work efficiency.

[0010] The technical solution adopted by the present invention is:

[0011] A sorting and packaging system for multiple goods of a single order, including a sowing wall unit, a bagging unit, and a boxing unit, characterized in that: the sowing wall unit includes a rotatable circular bracket, and a plurality of lifting and conveying mechanisms are arranged on the outer surface of the circular bracket. Each lifting and conveying mechanism can catch the goods and rotate with the rotation of the circular bracket. The lifting and conveying mechanism can lift the goods to a suitable vertical position and convey them into the corresponding basket.

[0012] Further: The lifting and conveying mechanism includes a support frame, a conveying component, and a lifting drive motor. The support frame is arranged on the outer surface of the circular support. The lifting drive motor arranged on the support frame drives the conveying component to move vertically along the support frame through a belt or a chain; the conveying component is used to receive goods and convey the goods into the basket.

[0013] The conveying component includes a support, a conveying belt, and a conveying drive motor. The support is connected to the belt or the chain. The conveying drive motor arranged on the support can drive the conveying belt arranged on the support to rotate outward and convey the goods thereon into multiple baskets in the basket rack outside the lifting and conveying mechanism.

[0014] Further: The basket rack is manually pushed or automatically pushed by an intelligent transport vehicle to an automatic basket changing unit.

[0015] The automatic basket changing unit includes a basket changing support, a basket changing mechanism, and a basket conveying mechanism. The front end of the basket changing support is used to dock the basket rack. A basket conveying mechanism is arranged beside the basket changing support. The basket changing mechanism arranged in the basket changing support can take out the basket with items placed therein in the basket rack and convey it away through the basket conveying mechanism. The basket changing mechanism can convey the empty basket conveyed by the basket conveying mechanism to the empty position in the basket rack.

[0016] The basket conveying mechanism is arranged outside the rear end of the basket changing support. The basket conveying mechanism includes a roller frame, an upper conveying roller group, and a lower conveying roller group. The upper conveying roller group and the lower conveying roller group are arranged horizontally at intervals at the upper end and the lower end of the roller frame respectively. The two conveying roller groups are respectively used to convey the basket with goods placed therein away and convey the empty basket.

[0017] An optimized solution is: The basket changing mechanism includes a bottom frame and a basket pushing and pulling component. Both sides of the bottom frame are respectively connected to a lifting belt. The two lifting belts are driven by the lifting motor. At least one basket pushing and pulling component for pulling out the basket with goods placed therein and pushing in the empty basket is arranged on the bottom frame.

[0018] An optimized solution is: The basket pushing and pulling component includes side plates, a moving seat, and suction cups. The two side plates are arranged horizontally at intervals on the bottom frame. A basket belt extending from the front end to the rear end of the basket changing support is arranged beside each side plate above. A longitudinal suction cup lead screw is arranged between the two side plates. The suction cup lead screw can drive the moving seat to move longitudinally between the two side plates. At least one suction cup is arranged on the moving seat.

[0019] When the suction cup moves close to the basket rack along with the moving seat, it sucks the outer surface of the side wall of the basket with goods placed inside through vacuum negative pressure, and when moving towards the rear end of the side plate along with the moving seat, it pulls the basket with goods placed inside out of the basket rack to the basket belt; when the basket with goods placed inside moves towards the rear end of the basket-changing support along with the basket belt, the suction cup can swing between the two side plates to allow the basket to pass through.

[0020] The basket belt can push the empty basket conveyed from any one of the upper conveying roller group or the lower conveying roller group to the empty position inside the basket rack.

[0021] An optimized solution is that: the basket belt is driven by a belt motor arranged between the two side plates or on the bottom frame; the suction cup lead screw is driven by a lead screw motor arranged between the two side plates or on the bottom frame.

[0022] An optimized solution is that: there are at least two basket push-pull assemblies;

[0023] All the basket belts rotate driven by a belt through-shaft or multiple belt shafts connected by couplings, and the belt motor drives the belt through-shaft or multiple belt shafts to rotate;

[0024] All the lead screws rotate driven by a lead screw through-shaft or multiple lead screw shafts connected by couplings, and the lead screw motor drives the lead screw through-shaft or multiple lead screw shafts to rotate.

[0025] An optimized solution is that: one side of the moving seat is slidably arranged on the longitudinal slide rail arranged on the same-side side plate, the other side of the moving seat is screwed through the suction cup lead screw, a guide post is arranged above the suction cup lead screw, one end of the guide post is connected to the swing plate hinged on the moving seat, the suction cup is arranged at the upper end of the swing plate, the other end of the guide post is slidably embedded in the longitudinal guide groove arranged on the same-side side plate, and the rear end of the guide groove is provided with an inclined end bent downward;

[0026] Or,

[0027] One side of the moving seat is screwed through the suction cup lead screw, a longitudinal guide groove is arranged on the side plate on the other side of the moving seat, the rear end of the guide groove is provided with an inclined end bent downward, the suction cup is arranged at the upper end of the swing plate hinged inside the moving seat, the swing plate is connected to one end of a guide post, and the other end of the guide post is slidably embedded in the guide groove.

[0028] An optimized solution is that: a barcode scanner for scanning the basket is arranged beside any one or all two of the upper conveying roller group or the lower conveying roller group.

[0029] Furthermore: the upper conveying roller group is respectively connected to the bagging unit and the boxing unit;

[0030] A detection and placement unit capable of measuring the volume of items and placing them is provided at any one or both of the bagging unit and the upper conveyor roller group or the boxing unit and the upper conveyor roller group. The detection and placement unit includes a placement platform, a middle rack for placing goods, and a manipulator. The manipulator is provided on the placement platform, and the middle rack for placing goods is provided beside the placement platform;

[0031] The manipulator can take out each item from the basket conveyed from one side of the placement platform and place it in one of the multiple cells provided in the middle rack for placing goods; after all the items in a basket are placed in the cells, the manipulator can take out all the items from the cells one by one and place them in the tray placed on the tray conveying mechanism on the other side of the placement platform according to the placement rules.

[0032] Preferably: multiple cells are provided on the upper end surface of the middle rack for placing goods, and the multiple cells include multiple cells with different sizes and multiple cells with the same size.

[0033] Preferably: the tray conveying mechanism includes a floor stand, a pulley motor, and a tray belt. Pulleys are provided at both the front end and the rear end of the floor stand, and the pulleys at the front end and the rear end wind the tray belt. Protrusions are evenly distributed on the surface of the tray belt, and the tray belt between two protrusions is used to hold the tray.

[0034] Preferably: a barcode scanner for identifying the item code in the basket is provided beside the placement platform. After the item code obtained by the barcode scanner is identified, the manipulator can place the item in a cell with a size larger than the size of the item.

[0035] Preferably: a tray is placed on the tray belt between two protrusions close to the placement platform, and a three-dimensional scanner is provided above the tray.

[0036] Furthermore: A pre-packaging unit for items is provided at any one or both of the bagging unit and the detection and placement unit or the boxing unit and the detection and placement unit. The pre-packaging unit for items includes a platform, a rotary lifting rod mechanism, a lifting and translation rod mechanism, a rotating mechanism, and a clamping and cutting mechanism. The rotary lifting rod mechanism, the lifting and translation rod mechanism, and the rotating mechanism are arranged at intervals from front to back on the platform, and the clamping and cutting mechanism is arranged beside the rotating mechanism;

[0037] The rotary lifting rod mechanism is used to place the conveyed tray on the lifting and translation rod mechanism. The lifting and translation rod mechanism can cooperate with the rotating mechanism and lift the tray beside the film roll provided in the rotating mechanism. The film roll rotates with the rotatable part in the rotating mechanism and winds the tray and the items placed on it together;

[0038] The clamping and cutting mechanism is used to clamp the film strip and cut the film strip between the film roll and the tray after the film is wound well;

[0039] The lifting and translating rod mechanism can push and convey the tray to the rear end of the rotating mechanism after the film strip is cut.

[0040] The preferred solution is that: the rotating and lifting rod mechanism includes a long rod seat, and a plurality of forward long rods are arranged at intervals on the front surface of the long rod seat, and the plurality of long rods are used to receive the trays conveyed by the tray conveying mechanism;

[0041] At least one long rod is provided with an upward convex rod on the outer surface close to the long rod seat; the long rod seat is connected to the upward cylinder rod of a long rod lifting cylinder, and the cylinder body of the long rod lifting cylinder is connected to the upward cylinder rod of a rotating cylinder, and the rotating cylinder is installed at the front end of the platform.

[0042] The preferred solution is that: the lifting and translating rod mechanism includes a moving component, short rods and a short rod lifting cylinder, lifting cylinders are respectively arranged at the front end and the rear end of the moving component, a short rod seat is arranged on the upward cylinder rod of each lifting cylinder, and a plurality of short rods are respectively arranged at intervals on the two short rod seats;

[0043] The long rods and the short rods are arranged in a staggered manner, the gap between two adjacent short rods can accommodate one long rod, and the gap between two adjacent long rods can accommodate one short rod; the two short rod seats can be lifted synchronously or separately, and at least one short rod close to the rotating mechanism is provided with an upward pushing rod on the rear outer surface;

[0044] The moving component can drive the two short rod seats to reciprocate between the rotating and lifting rod mechanism and the rotating mechanism.

[0045] The preferred solution is that: the moving component includes a slide rail, a moving beam, a rod seat frame and a driving component, a slide rail is arranged on the platform between the rotating and lifting rod mechanism and the rotating mechanism from front to back, a driving component for pushing and pulling the moving beam to move along the slide rail is arranged on the platform, the rod seat frame is arranged on the moving beam, and the two short rod seats are respectively arranged at the front end and the rear end of the rod seat frame.

[0046] The preferred solution is that: the rotating mechanism includes a base plate, a rotating ring and a film roll, the base plate is arranged on the platform behind the slide rail, an opening is arranged on the base plate, the rotating ring is rotatably arranged on the surface of the base plate beside the opening facing the lifting and translating rod mechanism, the rotating ring is driven by a rotating ring motor to rotate, and the film roll is arranged on one side of the rotating ring;

[0047] The film roll rotates with the rotation of the rotating ring and can wind the tray and the goods placed thereon together;

[0048] A plurality of support rods are arranged at intervals at the lower end inside the opening. The support rods have the same orientation as the short rods on the short rod seats close to them. The support rods and the short rods are arranged in a staggered manner. The gap between two adjacent support rods can accommodate one short rod.

[0049] When the film roll winds the tray and the goods placed thereon together, the ends of the short rods and the support rods close to each other can respectively support the front end and the rear end of the tray.

[0050] The support rods can support the tray when the push rod pushes the conveying tray backward towards the rotating mechanism.

[0051] Preferably, a pressing plate is arranged beside the support rods.

[0052] Preferably, a sleeve is arranged on the surface of the substrate beside the opening facing the lifting and translation rod mechanism. The rotating ring is rotatably arranged on the sleeve. At least one pressing wheel is arranged on the surface of the substrate outside the sleeve along the radial direction of the opening. The pressing wheel can roll on the outer surface of the rotating ring when the rotating ring rotates.

[0053] Furthermore, the clamping and cutting mechanism includes two clamping jaws and a hot knife. A clamping jaw is arranged on each side of the end of the film strip of the film roll. A liftable hot knife is arranged below the clamping jaws.

[0054] Preferably, the clamping jaws clamp the end of the film strip before the film roll rotates. The clamping jaws release the film strip after the film strip rotates at least one circle and can re-clamp the film strip after winding. The hot knife can rise and cut off the film strip after the clamping jaws re-clamp the film strip.

[0055] Another object of the present invention is to provide a usage method for a sorting and packaging system for single-order multiple goods, including the following steps: including a cargo box selection subroutine, a placement control subroutine, and a stacking control subroutine;

[0056] The placement control subroutine is used to control the manipulator to take out all the goods in the cargo basket and place them in the suitable cells arranged on the upper end surface of the goods placement intermediate rack;

[0057] The stacking control subroutine is used to control the manipulator to take out the goods from the cells and stack all the goods in the tray according to the rule of larger at the bottom and smaller at the top in terms of size;

[0058] The cargo box selection subroutine is used to control the unpacking mechanism in the packing unit to select a box of a suitable size and convey it to the packing mechanism in the packing unit after unpacking.

[0059] Furthermore, the placement control subroutine includes the following steps:

[0060] ⑴ Obtain the length and width dimensions of the topmost item in the current basket, and query the length and width dimensions of the cell.

[0061] ⑵ Compare the numerical values of the length and width of all items:

[0062] When the length is less than the width, swap the numerical values of the length and width, mark that the item needs to be rotated and adjusted, and proceed to the next step.

[0063] When the length is greater than or equal to the width, do not mark and proceed to the next step.

[0064] ⑶ Select the cell with a numerical value greater than and closest to the length of the item, and retrieve whether there is an item placed in the cell.

[0065] ⑷ If there is no item in the cell, control the manipulator to directly place the unmarked item into the found cell, or rotate and adjust the marked item and then place it into the found cell, and proceed to the next step.

[0066] If there is an item in the cell, mark that the cell cannot be used and return to step ⑶.

[0067] ⑸ Repeat steps ⑴ - ⑷ until all items in the basket are placed in the cells.

[0068] Further: The subroutine for selecting the cargo box includes the following steps:

[0069] ⑴ Obtain the information of an order.

[0070] ⑵ Find the maximum value of the length of the items in the order, and search for the cargo box in the cargo boxes whose length numerical value is greater than the maximum value of the length of the items and is closest to it according to the maximum value of the length.

[0071] ⑶ Find the maximum value of the width of the items in the order.

[0072] ⑷ Determine whether the maximum value of the length and the maximum value of the width are of the same item:

[0073] If they are of the same item, search for the cargo box in the cargo boxes whose two numerical values are both greater than the item and are closest to the item according to the maximum value of the length and the maximum value of the width of the item, and proceed to step ⑹.

[0074] If they are not of the same item, proceed to the next step.

[0075] ⑸ Compare whether the numerical value of the width of the cargo box in step ⑵ is greater than the maximum value of the width of the items.

[0076] If the comparison result is greater, proceed to step ⑹.

[0077] If the comparison result is smaller, search for the bin in which both values of the maximum length and the maximum width are greater than the goods and the values are closest to the goods in the bin, and proceed to step (6);

[0078] (6) Calculate the total height after stacking all the goods, and compare whether the value of the height of the currently selected bin is greater than the value of the total height after stacking:

[0079] If the comparison result is greater, proceed to step (7);

[0080] If the comparison result is smaller, search for the bin in which the three values of the maximum length, the maximum width, and the total height are all greater than the goods and the values are closest to the goods in the bin, and proceed to step (7);

[0081] (7) Send the bin information to the control process of the packing unit, and the control process of the packing unit drives the unpacking mechanism in the packing unit to extract a suitable bin and convey it to the packing mechanism in the packing unit after unpacking is completed.

[0082] Furthermore, the stacking control subroutine includes the following steps:

[0083] (1) Sort the goods by length, and place the goods with the maximum length along the length direction of the pallet in the pallet;

[0084] (2) Select the goods with a slightly smaller length and place them on top of the previous goods;

[0085] (3) Repeat step (2) until all the goods are stacked on the pallet according to the rule of larger at the bottom and smaller at the top.

[0086] The advantages and positive effects of the present invention are:

[0087] 1. In the present invention, a rotating circular bracket is driven by a driving motor, and a plurality of lifting and conveying mechanisms are radially arranged on the outer surface of the upper end of the circular bracket. The size of the circular bracket can determine how many lifting and conveying mechanisms are installed, which is quite flexible in use. A basket rack is placed outside the lifting and conveying mechanism, and the lifting and conveying mechanism automatically finds a suitable basket and conveys the goods into the basket. When the circular bracket rotates, all the lifting and conveying mechanisms are working. Compared with the conveying trolley running in a straight line, the sorting efficiency is higher, and at the same time, the overall floor area is smaller, which is especially suitable for installation and use by e-commerce companies with a small working site area.

[0088] 2. In the present invention, the basket rack is transported into the positioning mechanism at the front end of the basket-changing support. The basket-pushing and pulling assembly in the vertically liftable basket conveying mechanism arranged in the basket-changing support uses a suction cup and a basket belt to pull out the basket with the goods placed therein onto the upper conveying roller group or the lower conveying roller group and convey it to the packaging line body. Then, the empty basket conveyed by the upper conveying roller group or the lower conveying roller group is pushed into the position where the basket is suspended in the air. Thus, the taking-out and putting-in of the basket are automatically realized without arranging manual labor. The barcode scanner arranged beside any one or both of the upper conveying roller group and the lower conveying roller group can identify the code of the passing basket, and this code can be transmitted to the control system for further processing.

[0089] 3. In the present invention, the scanner scans the code of the uppermost item in the conveyed basket. This code is received by the control system and the three-dimensional dimensions of the item are found. The control system drives the manipulator to move, sucks the item through the suction cup, and then places the item into a cell whose length and width dimensions are both larger than the length and width dimensions of the item and records it. This is continuously repeated. The manipulator places all the items in the cells. The control system drives the manipulator to take out the items according to the placement rule of larger at the bottom and smaller at the top and stack them one by one on the tray. The tray is conveyed by the tray belt to the subsequent processing link. The whole process is automatically completed, with high work efficiency, and the approximate three-dimensional dimensions of the tray and the stacked items can be obtained after stacking for use in other links.

[0090] 4. In the present invention, the rotary lifting mechanism receives the tray conveyed by the conveying roller or the conveyor belt. Multiple items are placed on the tray. The rotary lifting mechanism rises and rotates 180 degrees, and then the ascending lifting and translation rod mechanism lifts the tray upward. Then, the whole is translated toward the rotating mechanism. When the end of the tray touches the support rod, the pressing plate presses the end of this side of the tray and the items. The lifting and translation rod mechanism descends and the end of the short rod beside the push rod supports the end of the tray on this side. The film roll rotates and winds the tray and the items together. After the hot knife cuts the film, the lifting and translation rod mechanism translates toward the support rod direction and pushes the whole tray through the opening to the conveying roller or the conveyor belt on the rear-end platform of the substrate. The whole process has stable transportation and stable support, ensuring the tight winding of the film. It not only has a high degree of automation but also has a good winding effect, facilitating subsequent packing.

[0091] 5. The present invention combines the sowing wall unit, the automatic basket-changing unit, the detection and placement unit, the pre-packaging unit, the bagging unit, and the packing unit with each other and interconnects them through the conveying roller or the conveyor belt. The whole process is automatically completed, and a packing box with a suitable size can be selected and opened in advance, improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0092] Figure 1 is a schematic structural diagram of the present invention;

[0093] Figure 2It is a schematic structural diagram in which both the bagging unit and the boxing unit are provided with a pre-packaging unit;

[0094] Figure 3 It is a schematic structural diagram of the seeding wall unit;

[0095] Figure 4 It is Figure 3 An enlarged cross-sectional view of the front projection view of;

[0096] Figure 5 It is an enlarged view of the lifting and conveying mechanism;

[0097] Figure 6 It is Figure 4 An enlarged view of part I of;

[0098] Figure 7 It is Figure 4 An enlarged view of part II of;

[0099] Figure 8 It is a schematic structural diagram of the present invention;

[0100] Figure 9 It is Figure 8 A schematic diagram of the front view of the basket-changing support of;

[0101] Figure 10 It is Figure 8 A schematic diagram of the rear view of the basket-changing support of;

[0102] Figure 11 It is Figure 9 An enlarged view of part I of;

[0103] Figure 12 It is Figure 10 An enlarged view of part II of;

[0104] Figure 13 It is Figure 12 A schematic diagram of the positions among the guide groove, the moving seat, the swing plate and the suction cup of;

[0105] Figure 14 It is a schematic diagram when the suction cup holds the basket with the goods placed and is about to pull it out;

[0106] Figure 15 It is Figure 14 A schematic diagram when the bottom surface of the front end of the basket with the goods placed presses on the upper conveying roller group or the lower conveying roller group of;

[0107] Figure 16 It is a schematic diagram when the empty basket is pushed by the push rod or the push plate to the basket belt;

[0108] Figure 17 It is a schematic diagram when the empty basket moves along with the basket belt towards the basket rack;

[0109] Figure 18 It is a schematic structural diagram of the detection placement unit;

[0110] Figure 19 It is Figure 18 the top view of;

[0111] Figure 20 It is a schematic structural diagram of the present invention;

[0112] Figure 21 It is Figure 20 the three-dimensional view of the other side of;

[0113] Figure 22 It is Figure 20 the enlarged view of part I of;

[0114] Figure 23 It is Figure 21 the enlarged view of part II of;

[0115] Figure 24 It is the schematic diagram after the rotary lifting rod mechanism is connected to the tray, rotates 80 degrees and descends a certain distance;

[0116] Figure 25 It is the schematic diagram when two short rod seats rise and multiple short rods at two places lift the tray upward;

[0117] Figure 26 It is the schematic diagram after two short rod seats rise and translate to the support rod;

[0118] Figure 27 It is Figure 26 the schematic diagram when the short rod seat near the support rod in descends and the end of the tray on this side contacts the support rod;

[0119] Figure 28 It is the schematic diagram when the pressing plate presses the same-side ends of the tray and the goods, and both short rod seats descend and are ready to start translating to the left;

[0120] Figure 29 It is Figure 28 the schematic diagram when the two short rod seats of translate to the left, rise and the end of the short rod beside the push rod holds the end of the tray on this side;

[0121] Figure 30 It is the schematic diagram after the film roll is wound, the short rod seat translates to the right and the push rod pushes the tray and the goods as a whole to the right. Specific embodiments

[0122] The present invention will be further described below in conjunction with embodiments. The following embodiments are illustrative and not restrictive, and the protection scope of the present invention cannot be limited by the following embodiments.

[0123] A sorting and packaging system for single order and multiple goods, such asFigure 1-2 As shown, it includes a seeding wall unit 2, a bagging unit 8 and a boxing unit 11. As shown in the figure, the innovation of the present invention lies in that: the seeding wall unit is as Figure 3-5 shown, including a rotatable circular bracket 28, and a plurality of Figure 5 as shown in the lifting and conveying mechanisms are arranged on the outer surface of the circular bracket. Each lifting and conveying mechanism can catch the goods conveyed by the feeding section 1 (the front and left parts of the operator 22) and rotate with the rotation of the circular bracket. The lifting and conveying mechanism can lift the goods to a suitable vertical position and convey them into the corresponding goods basket 61.

[0124] The lifting and conveying mechanism includes a support frame 27, a conveying component 29 and a lifting drive motor 44. The rear end face of each support frame is fixed with the front end of a tripod 33 through common fixing structures such as bolts or welding. The rear end of the tripod is fixed on the outer surface of the circular bracket through common fixing structures such as bolts or welding. The lifting drive motor arranged on the support frame drives the conveying component to move vertically along the support frame through a belt or a chain; the conveying component is used to catch the goods and convey them outwards.

[0125] The above-mentioned conveying component includes a bracket 32, a conveying belt 31 and a conveying drive motor 35. The rear end of the bracket is connected to the belt or chain on the support frame through a clamping part or a clamping piece. The conveying drive motor is horizontally installed at the front end of the bracket. The conveying drive motor drives the belt roller horizontally installed at the front end of the bracket to rotate through a drive belt, a gear or a friction roller. The outer surfaces of the belt roller horizontally installed at the front end of the bracket and the belt roller horizontally installed at the rear end of the bracket are wound with the above-mentioned conveying belt. When the conveying drive motor rotates forward or backward, the belt roller at the front end of the bracket drives the conveying belt to rotate outwards or inwards.

[0126] In order to ensure the stability when the bracket moves vertically along the support rod, two rolling plates 42 are connected to the two sides or the rear end of the bracket. The two roller plates are respectively located on one side of the support frame, and each roller plate is provided with rollers 42 for rolling and pressing the front end face, the rear end face and the side face of the same side of the support frame. As Figure 6 、 7 shown, Figure 6 It shows that two rollers are installed on the upper and lower ends of the side face of the rolling plate through a rotating shaft, and the outer surfaces of the two rollers roll and press the side face of the support frame 27, Figure 7 It shows that two rollers are respectively installed on the upper and lower ends of the front end face and the rear end face of the rolling plate through a rotating shaft, and the outer surfaces of the rollers respectively roll and press the front end face and the rear end face of the support frame.

[0127] As Figure 5As shown in the figure, the lifting drive motor 44 is arranged at the lower end of the support frame. Two horizontal synchronous pulleys 43 are respectively installed at the upper and lower ends of the support frame. A synchronous belt 34 is wound around the outer surfaces of the two synchronous pulleys. The synchronous belt located at the front side is connected to the rear end of the bracket 32 of the conveying assembly through a clamping part or a clamping member. The lifting drive motor drives the synchronous pulley at the lower end of the support frame to rotate through a synchronous belt, a gear, a chain, etc. This synchronous pulley drives the synchronous belt to rotate, and the synchronous belt drives the conveying assembly to move vertically.

[0128] The main shaft 39 at the bottom surface of the circular bracket is rotatably arranged on the fixed frame 40 below the circular bracket through a bearing. A rotation drive motor 36 is arranged on the fixed frame. The rotation drive motor is horizontally installed on the fixed frame, and its output shaft is coaxially connected to a bevel gear 37 with a horizontal axis. This bevel gear meshes with another bevel gear coaxially installed on a vertically arranged transmission shaft of the fixed frame. Through the meshing transmission mode of the two bevel gears, the rotation of the output shaft of the horizontally rotating drive motor is converted into the rotation of the transmission shaft in the vertical direction. A small gear is arranged at the end of the transmission shaft close to the lower end of the main shaft. This small gear meshes with a large gear 38 coaxially installed on the main shaft. Thus, the rotation of the output shaft of the rotation drive motor is transmitted to the main shaft through two bevel gears, a transmission shaft and two gears, and the main shaft drives the circular bracket to rotate, and the rotation of all the lifting and conveying mechanisms is realized.

[0129] Baffles 30 are arranged at any one or both of the two sides of the bracket and the side close to the support frame. The baffles prevent relatively thin and light goods from falling when the circular bracket drives the lifting and conveying mechanism to rotate.

[0130] The feeding section is as Figure 3 shown, and includes a conveying table 16, a barcode scanner 19 and a 3D scanner 21. A conveying belt for conveying goods can be installed on the conveying table (or not). A barcode scanner is arranged on the frame 18 above the conveying table. The barcode scanning camera is used to collect the codes of the goods. A transfer conveyor belt 20 is arranged at the end of the conveying table close to the lifting and conveying mechanism. This transfer conveyor belt is used to convey goods to the lifting and conveying mechanism. The 3D scanner is arranged above the transfer conveyor belt. This 3D scanner is used to obtain the three-dimensional dimensions of the goods.

[0131] The barcode scanner can be a commercially available modular product with a built-in camera, or a separate camera can be used to obtain a picture of the code, and then the computer automatically identifies it according to the coding rules. The 3D scanner can be a commercially available modular product with a built-in camera (such as a 3D scanner), or multiple cameras with different placement positions. Pictures of the goods from different angles are obtained by them, and then the three-dimensional dimensions of the goods are obtained after being processed by the computer.

[0132] A plurality of goods conveyor racks 25 are arranged on the ground outside the lifting and conveying mechanism along the radial direction of the circular support. Each goods conveyor rack is used for limit docking with a basket rack 24. A plurality of conveyor plates 26 for sliding conveyance of goods are installed on the goods conveyor rack in a row and column manner. Each conveyor plate is aligned with one of the plurality of baskets 61 placed in the spaces 23 at the rows and columns of the basket rack.

[0133] When the outer diameter of the circular support becomes larger, more lifting and conveying mechanisms can be installed. Then, a plurality of goods conveyor racks and basket racks that are aligned one by one with the goods conveyor racks can be placed. That is, after replacing the circular support with a larger outer diameter, the number of goods that can be conveyed simultaneously can be increased, thereby improving the working efficiency per unit time. Figure 1 In the figure, there are five goods conveyor racks and five basket racks. Of course, it is also possible to have six of each. A vacant position is left on the right side of the figure.

[0134] The use process of the sowing wall unit is as follows:

[0135] The transporter transports the goods sorted in the warehouse to the conveying table. The operator 22 picks up the goods and scans them through the code scanning camera (the conveying table is not provided with a conveying belt). Then, the goods are placed on the transfer conveyor belt. The three-dimensional scanner obtains the three-dimensional dimensions of the goods. After scanning, the transfer conveyor belt rotates to convey the goods to the conveying belt 20 of the conveying component waiting for alignment. The circular support rotates, and the next conveying belt waits for alignment;

[0136] The conveying component loaded with goods is lifted to a suitable height position. As the circular support rotates, when the conveying component is aligned with the corresponding basket (the alignment judgment is to obtain the goods code by the code scanning camera and query the preset basket number in the system 17 and the row and column where the basket is located on which basket rack), the conveying belt of the conveying component rotates outward to convey the goods to the conveyor plate of the goods conveyor rack, and the goods automatically slide into the corresponding basket.

[0137] The above process is continuously repeated to complete the sorting of the goods for a certain batch of orders.

[0138] The sowing wall unit uses a driving motor to drive a rotating circular support. A plurality of lifting and conveying mechanisms are radially arranged on the outer surface of the upper end of the circular support. The size of the circular support can determine how many lifting and conveying mechanisms are installed, and it is quite flexible in use. Basket racks are placed outside the lifting and conveying mechanism. The lifting and conveying mechanism automatically finds a suitable basket and conveys the goods into the basket. When the circular support rotates, all the lifting and conveying mechanisms are working. Compared with the conveying trolley running in a straight line, the sorting efficiency is higher, and at the same time, the overall floor area is smaller, especially suitable for e-commerce with a small working site area to install and use.

[0139] The basket rack needs to move back and forth between the sowing wall unit and the automatic basket changing unit. The basket rack with goods can be manually pushed to the automatic basket changing unit, and the basket rack full of empty baskets can be pushed to the sowing wall unit. In addition, an intelligent transporter can be set on the bottom surface between the casters at the bottom of the basket rack, such as the AGV intelligent trolley 14. The intelligent transporter automatically moves back and forth between the sowing wall unit and the automatic basket changing unit by means of visual positioning, radar positioning or trajectory positioning, and carries the basket changing frame and moves back and forth at the same time.

[0140] The automatic basket changing unit is as Figure 8-17 shown, including a basket changing support 49, a basket changing mechanism 63 and a basket conveying mechanism. The front end of the basket changing support is used to dock the basket rack 24. A basket conveying mechanism is arranged beside the basket changing support. The basket changing mechanism arranged in the basket changing support can take out the basket 61 with items placed in the basket rack and convey it away through the basket conveying mechanism. The basket changing mechanism can convey the empty basket conveyed by the basket conveying mechanism to the empty position in the basket rack.

[0141] The basket rack is of a frame structure, with moving wheels arranged at the bottom. A plurality of bending baffles 58 are horizontally arranged on each layer (row) of the basket rack. One basket is limited between two adjacent bending baffles. A retaining beam 59 for blocking the basket is screwed or threadedly connected to the basket rack. At the front end of the basket changing support ( Figure 8 in the direction), positioning mechanisms for positioning the basket rack are arranged on both sides. The positioning mechanism includes vertical beams 56 and guide wheels 57. One vertical beam is arranged on each side of the front end of the basket changing support. One guide wheel is arranged at the upper and lower ends of each vertical beam. When the basket rack moves to the front end of the basket changing support ( Figure 8 in the direction), both sides just move along with the rolling of the guide wheels on the same side and dock at the front end of the basket changing support.

[0142] A lifting motor 54 is arranged on the basket changing support. The lifting motor drives the basket changing mechanism to move vertically up and down in the basket changing support through a belt or a chain. For the specific structure, please refer to Figure 8 、 9 、10. A lifting motor is arranged in the middle of the top surface of the basket changing support. The output shaft of the lifting motor is connected to the input shaft of a main gearbox 53. The two output shafts on both sides of the main gearbox are respectively connected to the input shafts of a side gearbox 50 through couplings and a horizontal transmission shaft 53. The output shaft of each side gearbox is connected to a lifting pulley 51 rotatably installed on the wheel rack on the same side. A lifting pulley is also installed at the bottom of the basket changing support on the same side in the vertical direction. The two lifting pulleys in the vertical direction are wound with a lifting belt 55. The two lifting belts are respectively connected to one end of the basket changing mechanism and can drive the basket changing mechanism to move up and down.

[0143] The basket conveying mechanism is arranged on the outer side of the rear end of the basket changing support. The basket conveying mechanism includes a roller frame 45, an upper conveying roller group 4 and a lower conveying roller group 13. The upper and lower conveying roller groups are arranged horizontally at intervals at the upper and lower ends of the roller frame. The two conveying roller groups are respectively used to convey the basket with goods away and convey the empty basket. As Figure 8 shown, the roller frame is a frame structure. Both the upper conveying roller group and the lower conveying roller group include a plurality of conveying rollers. The plurality of conveying rollers rotate under the drive of a chain and a motor (the specific driving method is a technology widely used in factories and will not be described in detail here). It can horizontally transport the basket to the packaging line body (in the Figure 8 right direction in the figure) or convey the empty basket horizontally (in the Figure 8 left direction in the figure). Figure 8 In the figure, the upper conveying roller group is used to convey the basket with goods to the packaging line body, and the lower conveying roller group is used to convey the empty basket to the rear end of the basket changing support.

[0144] As Figure 1 、 2 shown, there are two points 5 for reversing and conveying in the upper conveying roller group of the roller frame. After one reversing and conveying, the basket is conveyed to the bagging unit, and after the other reversing and conveying, the basket is conveyed to the boxing unit. The two points are also connected through the upper conveying roller group. The boxing unit is connected to the boxing unit through a packing box conveyor belt 15. Points for reversing and conveying are also installed on the packing box conveyor belt according to the need for reversing. The bagging unit and the boxing unit convey the packaged goods away through a main conveying roller or a main conveyor belt 9. The above points can adopt structures such as an intermediate conveyor belt that can lift and rotate, and an intermediate conveyor belt with a pneumatic push plate for pushing the goods to move.

[0145] The bagging unit, the boxing unit, the case opening unit, the points for case changing and conveying, the packing box conveyor belt and the main conveyor belt are all prior arts. Whether the goods are conveyed to the bagging unit or the boxing unit can be set by the e-commerce itself and will not be described in detail here.

[0146] The basket changing mechanism is as Figure 8-17 shown, including a bottom frame 65 and a basket pushing and pulling assembly. A connecting frame 67 is welded or screwed at both ends of the bottom frame (the shape of the connecting frame is not limited, and structures such as triangles and squares can be used as long as it can stably support the bottom frame and the basket pushing and pulling assembly). Each connecting frame is fixedly connected to the lifting belt on the same side through a clamping or fastening member. At least one basket pushing and pulling assembly 62 for pulling out the basket with goods and pushing in the empty basket is arranged on the bottom frame. In order to limit the vertical rotation of the lifting belt, a vertical support frame 64 is welded or screwed in the basket changing support beside each lifting belt. In addition, as Figure 12As shown in the figure, a roller plate 42 is fixed to the front end and the rear end of the connecting frame in the figure by welding or screwing respectively. On both sides of each roller plate in the figure, rollers 41 that can roll and press against the two side surfaces of the support frame are rotatably installed. On the front end of the roller plate in the figure, a roller that can press against the front surface of the support frame in the figure is rotatably installed. Multiple rollers roll and press against the support frame from multiple directions, making the lifting belt drive the chassis to lift more stably.

[0147] The basket push-pull assembly is as Figure 11-14 shown, and includes side plates 66, a moving seat 73, and suction cups 70. The two side plates are horizontally ( Figure 11 , 12 in the direction of) spaced and welded or screwed to the chassis. Above each side plate, a basket belt 69 extending from the front end to the rear end of the basket-changing support is provided on the side (the specific installation structure is: at the front end and the rear end of each side plate, a basket belt pulley 77 is rotatably installed respectively, and the two basket belt pulleys are wound with the basket belt). A longitudinal suction cup lead screw 79 is provided between the two side plates (the two ends of the suction cup lead screw are respectively rotatably fitted into end plates 78 fixed by welding or screwing at the front end and the rear end of the two side plates). The suction cup lead screw can drive the moving seat to move longitudinally (between the two end plates) between the two side plates, and at least one of the suction cups is provided on the moving seat.

[0148] When the suction cup moves close to the basket rack with the moving seat (in the direction of the front end of the basket-changing support), it sucks the outer surface of the side wall of the basket with the goods placed in it through vacuum negative pressure (how the suction cup is connected to the vacuum pump through pipelines, valves, etc. and how the vacuum pump is controlled are all prior arts and will not be described in detail here) (as Figure 14 shown) and pulls the basket with the goods placed in it out of the basket rack to the basket belt as it moves towards the rear end of the side plate with the moving seat; the suction cup can swing between the two side plates when the basket with the goods placed in it moves towards the rear end of the basket belt and allows the basket to pass through; the basket belt itself or the cooperation between the basket belt and the suction cup can push the empty basket conveyed from any one of the upper conveying roller group or the lower conveying roller group to the empty position in the basket rack (as Figure 16 , 17 shown).

[0149] As shown in the figure, three basket push-pull assemblies are installed horizontally on the chassis. More are also possible, specifically depending on how many baskets are placed on each layer (row) of the basket rack. All the basket belts rotate driven by a belt through-shaft or multiple belt shafts 68 connected by a coupling 82. A belt motor 89 screwed between the two side plates or on the chassis drives through a transmission belt 88 ( Figure 14At the lower end and on the right side, one side of the drive belt is wound around a pulley coaxially sleeved on the output shaft of the belt motor, and the other side of the drive belt is wound around a pulley coaxially sleeved with the belt shaft) to drive the rotation of the belt through-shaft or multiple belt shafts. All the lead screws rotate driven by a lead screw through-shaft or multiple lead screw shafts 83 connected by a coupling 82, and a lead screw motor 90 screwed to between the two side plates or on the chassis drives the rotation through a drive belt 88( Figure 14 At the lower end and on the left side, one side of the drive belt is wound around a pulley coaxially sleeved on the output shaft of the lead screw motor, and the other side of the drive belt is wound around a pulley coaxially sleeved with the lead screw shaft) to drive the rotation of the lead screw through-shaft or multiple lead screw shafts. The above structure ensures the approximate synchronous movement of the basket belt and the suction cup lead screw. Even if there are minor deviations, they are acceptable. For example, using synchronous belts for various belts and precise motors with encoders for various motors can make the overall operation more precise. In addition, since the directions of the lead screw shaft and the suction cup lead screw are approximately perpendicular to each other, in order to achieve the transmission commutation, it can be achieved through the meshing transmission mode of two bevel gears with perpendicular axial directions, such as Figure 14 81 in is two encapsulated bevel gears that are perpendicular to each other in axial direction and meshing and rotating in cooperation. Of course, it is also possible to use a worm and worm gear transmission commutation structure, and other mechanical structures that can achieve transmission commutation are also possible.

[0150] Such as Figure 11 、 13 As shown, on one side ( Figure 12 right side) of the moving seat 73, a slider is screwed or embedded at the lower end, and the slider is slidably connected to a longitudinal slide rail 80 screwed to the lower end of the same side plate. The other side of the moving seat is screwed through the suction cup lead screw 79. A guide post 76 is arranged above the suction cup lead screw. One end of the guide post is as Figure 11 shown and is connected to the rear end ( Figure 11 direction) of a swing arm 75. The front end ( Figure 11 direction) of the swing arm is clamped and sleeved on one end of a hinge shaft. The hinge shaft is transversely installed on the inner walls of both sides of a groove (not labeled in the figure) made at this position of the moving seat 73. The outer surface of the hinge shaft between the grooves is fixed with the front end ( Figure 11 direction) of a swing plate through a clamping member or a bolt. The rear end ( Figure 11 direction) of the swing plate is fixedly installed with a transverse mounting plate 71 by welding or screwing. On both sides of the mounting plate, a suction cup 70 is respectively screwed or embedded. A plurality of longitudinally spaced long through grooves 84 are made on the swing plate below the mounting plate. Long bolts can be inserted into the plurality of long through grooves, and can be fixed by the long bolts after adjusting the position of the mounting plate. The other end of the guide post is slidably embedded in a longitudinal guide groove 86 arranged on the same side plate. The rear end of the guide groove ( Figure 13Set the inclined end 85 with a downward bend in the (direction) (the inclined direction is a gradually downward inclination from the lower right to the upper left direction in Figure 13 , which is equivalent to the front end of the side plate towards the rear end of the side plate).

[0151] In addition to the above-mentioned cooperation structure of the slider, slide rail, guide post and suction cup screw rod, a structure without using a slider and a slide rail can also be adopted, that is, the suction cup screw rod and the guide post are respectively arranged on both sides of the moving seat. The suction cup screw rod supports one side of the moving seat, while the guide post and the guide groove support the other side of the moving seat. The specific structure is as follows: the suction cup screw rod is screwed through one side of the moving seat, and a longitudinal guide groove is arranged on the side plate on the other side of the moving seat. The rear end of the guide groove is provided with an inclined end with a downward bend. The upper end of the swing plate hinged in the moving seat is provided with the suction cup. The swing plate is connected to one end of a guide post, and the other end of the guide post is slidably embedded in the guide groove.

[0152] When the guide post slides forward from the lower end to the upper end of the inclined end as shown in Figure 13 , it can make the swing plate gradually swing upward. When the guide post slides from the inclined end into the longitudinal guide groove, it can make the suction cup align with the outer surface of the side wall of the basket with the goods placed as shown in Figure 14 .

[0153] A barcode scanner 60 for scanning the basket is provided beside any one or both of the upper conveying roller group or the lower conveying roller group. The scanner can be a commercially available packaged modular product with a camera, or a camera can be used alone, and the computer decodes the code in the picture according to the coding rule to judge which basket moves through.

[0154] The usage process of the automatic basket changing unit is as follows:

[0155] As shown in Figure 8 , the upper conveying roller group is used to convey the basket with the goods placed to the packaging line body, and the lower conveying roller group is used to convey the empty basket to the rear end of the basket changing support. The basket rack is moved to the front end of the basket changing support and positioned and docked. At this time, there are nine baskets with the goods placed on the basket rack.

[0156] Taking out the basket with the goods placed:

[0157] First, take out the basket at the bottom layer of the basket rack. The lifting belt rotates, causing the chassis to descend and align the basket pushing and pulling assembly with the three baskets at the bottom layer of the basket rack.

[0158] As shown in Figure 14As shown, the sucker lead screw rotates, causing the moving seat to move towards the basket rack. The swing plate gradually swings upward under the sliding fit of the guide post, inclined end, and guide groove, and finally swings upward in place as shown in the figure. At this time, the sucker is aligned with the outer surface of the basket side wall. After the sucker lead screw (or lead screw motor) rotates for a certain period of time or a certain number of turns, the soft disk surface of the sucker contacts the outer surface of the basket side wall, and the vacuum pump works, sucking the basket.

[0159] The sucker lead screw rotates in the reverse direction, causing the moving seat to move away from the basket rack. The sucker pulls the basket with the goods 87 placed in it to gradually leave the basket rack. When the bottom surface of the basket contacts the surface of the basket belt (after the sucker lead screw (or lead screw motor) rotates for a certain period of time or a certain number of turns), friction is generated between the bottom surface of the basket and the basket belt. When the guide post approaches the inclined end of the guide groove (after the sucker lead screw (or lead screw motor) rotates for a certain period of time or a certain number of turns), the vacuum pump stops, and the soft disk surface of the sucker loosens from the outer surface of the basket side wall. At this time, the basket continues to move with the basket belt relying on the above-mentioned friction. Once the guide post enters the inclined end, it will cause the sucker to swing towards the two side plates with the swing plate and avoid the movement of the basket. The basket continues to move with the basket belt. As Figure 15 shown, when the basket with the goods placed in it completely enters the upper conveying roller group under the conveying of the basket belt, the upper conveying roller group drives the basket to move horizontally and convey it to the packaging line body under the drive of its own motor.

[0160] The chassis moves vertically, repeating the above process to convey all the baskets on the three-layer basket rack to the upper conveying roller group.

[0161] Putting in empty baskets:

[0162] As Figure 16 shown, the chassis moves vertically and aligns with the lower conveying roller group. A whole or split push rod 91 or push plate is arranged beside the lower conveying roller group to push three empty baskets onto the basket belt (whether to use a single whole push rod or push plate, or three split push rods or push plates, and whether each structure uses pneumatic or electric is prior art and will not be described in detail here).

[0163] The chassis rises or falls and aligns with a certain layer of the basket rack. The basket belt rotates. As Figure 17 shown, the empty basket is driven to move towards the basket rack by using friction (at this time, the sucker lead screw can also be rotated to move the moving seat, and at the same time, the swing plate swings upward to make the sucker touch the side wall surface of the empty basket, so that the cooperation of the sucker and the basket belt jointly pushes the empty basket to move). After the belt motor rotates for a certain period of time or a certain number of turns, it is considered that the empty basket has been pushed into the basket rack.

[0164] The chassis moves vertically, repeating the above process to place all the empty baskets on the three-layer basket rack.

[0165] When an empty basket passes through the barcode scanner, the barcode scanner scans and sends the position of each empty basket to the control system, and each basket on the basket rack is clearly identified by the control system, so that the seeding wall can convey the goods corresponding to the order of the basket into the basket.

[0166] In the automatic basket-changing unit, the basket rack is transported into the positioning mechanism at the front end of the basket-changing bracket. The basket pushing and pulling assembly in the vertically liftable basket conveying mechanism arranged in the basket-changing bracket uses a suction cup and a basket belt to pull out the basket filled with goods onto the upper conveying roller group or the lower conveying roller group and convey it to the packaging line body, and then push the empty basket conveyed by the upper conveying roller group or the lower conveying roller group into the empty position of the basket rack. Thus, the taking out and putting in of the basket are automatically realized without arranging manual labor. The barcode scanner arranged beside any one or both of the upper conveying roller group and the lower conveying roller group can identify the code of the passing basket, and the code can be transmitted to the control system for further processing.

[0167] A detection and placement unit capable of measuring the volume of the article and placing it is arranged at any one or both of the positions between the bagging unit and the upper conveying roller group or between the boxing unit and the upper conveying roller group. For example Figure 1 、 2 In, a first detection and placement unit 6 is arranged between the bagging unit 8 and the upper conveying roller group 4, and a second detection and placement unit 12 is arranged between the packaging box conveyor belt 15 (boxing unit) and the upper conveying roller group.

[0168] As Figure 18 、 19 shown, the detection and placement unit includes a placement platform 105, an intermediate goods placement rack 95 and a manipulator 94. The manipulator is arranged on the placement platform, and the intermediate goods placement rack is arranged beside the placement platform.

[0169] The manipulator can take out each article from the basket 61 conveyed from the front end of the placement platform ( Figure 18 the left side) and place it in one of the multiple cells arranged in the intermediate goods placement rack; after the manipulator places all the articles of a basket in the cells, it can take out all the articles from the cells one by one and place them in the tray 98 placed on the tray conveying mechanism beside the rear end of the placement platform according to the placement rules.

[0170] The above-mentioned placement platform refers to a structural member with the function of supporting or installing other equipment, which may be various solid or hollow table-shaped structures, or may also be a frame-shaped platform as Figure 18 、 19 shown.

[0171] ​​A conveyor roller 92 or a conveyor belt is provided beside the front end of the placement platform. One end of the conveyor roller or the conveyor belt is aligned with the point 5 for reverse conveying in the upper conveyor roller group, and the other end of the conveyor roller or the conveyor belt is used to convey the basket to the side beside the front end of the placement platform ( Figure 1 with the left side being the front direction). Multiple cells are provided on the upper end surface of the intermediate rack for placing goods. The multiple cells include multiple cells with different sizes and multiple cells with the same size. As Figure 19 shown, the bottom row on the upper end surface of the intermediate rack for placing goods is large cells 97 with larger sizes, and the top row is small cells 96 with smaller sizes. The sizes in one row of large cells can be all the same, or all different, or partially the same. Similarly, the sizes in one row of small cells can be all the same, or all different, or partially the same.

[0172] A frame 18 can be provided on the ground beside the placement platform, or a frame can be directly bolted and fixed on the placement platform. At the part of the frame above the basket, a code scanner 93 for identifying the product code in the basket is installed by means of bolting or the like. After the product code obtained by the code scanner is identified, the manipulator can place the product into a cell with a size larger than the size of the product.

[0173] The execution component of the manipulator is a gripper or a suction cup 70, preferably a vacuum negative pressure suction cup. The connection of the suction cup to the valve, pipeline, vacuum pump, etc. is prior art and will not be described in detail here.

[0174] The pallet conveying mechanism includes a floor stand 103, a belt pulley motor 99, and a pallet belt 102. Belt pulleys 100 are provided at both the front end and the rear end of the floor stand. The belt pulleys at the front end and the rear end wind the pallet belt. Protrusions 101 are evenly distributed on the surface of the pallet belt. The pallet belt between two protrusions is used to support the pallet.

[0175] A pallet 98 is placed on the pallet belt between two protrusions close to the placement platform. A frame 18 can be provided on the ground beside the pallet, or a frame can be directly bolted and fixed on the placement platform, or a frame can be directly bolted and fixed on the floor stand. At the part of the frame above the pallet, a three-dimensional scanner 21 for identifying the overall three-dimensional size of the pallet and the goods placed thereon is installed by means of bolting or the like.

[0176] The working process of the detection placement unit is as follows:

[0177] 1. The conveying roller transports the basket 61 with the goods placed in it and stops below the barcode scanner. All the goods in the basket are in the direction with the codes facing up. The barcode scanner scans the code (barcode, QR code or other computer-readable code) of the topmost good and sends the code to the control system. The control system takes the CPU or the integrated Android module as the core, automatically identifies the code and searches in the server for the pre-stored three-dimensional dimensions corresponding to this good in this order.

[0178] 2. The control system selects a suitable cell according to the length and width dimensions of the good. It is required that the cell be larger than the length and width dimensions of the good in terms of length and width. Then it drives the manipulator to move over. The suction cup sucks the good and places it into the selected cell. The control system remembers which cell is occupied.

[0179] 3. Keep repeating. The manipulator places all the goods in different cells (this "different" refers to the cells at different positions on the intermediate rack for goods placement. It is possible that the sizes of some cells are the same).

[0180] The manipulator moves to the side of the rear end of the placement platform ( Figure 18 the right side), removes the topmost tray 98 placed beside the placement platform (using the suction cup to remove it. The tray is supported by a light material with a smooth surface such as paper and can be stably sucked by the suction cup), and then places it between the two bumps of the tray belt on the floor rack close to the placement platform.

[0181] 4. The manipulator returns above the intermediate rack for goods placement. According to the placement rule of larger at the bottom and smaller at the top in terms of size, it first takes out the largest good from the cell and places it on the tray, and then successively places the goods with gradually smaller sizes upwards one by one. After all the goods are placed, the tray is conveyed backward by the tray belt, and the manipulator resets to process the next basket.

[0182] The above manipulator uses a multi-axis robotic arm, such as a six-axis structure, etc., so that the suction cup can maintain high-precision movement. The recognition of the operating position of the manipulator in the three-dimensional space and the precision control are all prior arts. The suction cup itself can also realize the action of rotating along its own axis through one of the axes of the multi-axis robotic arm.

[0183] The barcode scanner can be a commercially available modular product with a built-in camera, or a separate camera can be used to obtain a picture of the code, and then the computer automatically identifies it according to the code rule. The 3D scanner can be a commercially available modular product with a built-in camera (such as a 3D scanner), or multiple cameras with different placement positions. It obtains pictures of the goods from different angles, and then the computer processes them to obtain the three-dimensional dimensions of the goods.

[0184] In the detection and placement unit, the scanner scans the code of the uppermost item in the conveyed basket. The code is received by the control system, which then finds the three-dimensional dimensions of the item. The control system drives the manipulator to move, sucks up the item with a suction cup, and then places the item in a cell whose length and width are both larger than those of the item and records it. This process is repeated continuously. The manipulator places all the items in the cells, and the control system drives the manipulator to take out the items according to the placement rule of larger at the bottom and smaller at the top and stack them one by one on the tray. The tray is conveyed by the tray belt to the subsequent processing link. The whole process is automatically completed, with high work efficiency, and the approximate three-dimensional dimensions of the tray and the stacked items can be obtained after stacking for use in other links.

[0185] As Figure 1 , 2 shown, a pre-packaging unit for items is provided at any one or both of the locations between the bagging unit and the detection and placement unit or between the boxing unit and the detection and placement unit. For example Figure 1 , 2 in, a pre-packaging unit for items is provided between the bagging unit 8 and the first detection and placement unit 6, and a pre-packaging unit for items is provided between the packaging box conveyor belt 15 (boxing unit) and the second detection and placement unit 12.

[0186] The pre-packaging unit for items, as Figure 20-30 shown, includes a platform 123, a rotary lifting rod mechanism, a lifting and translation rod mechanism, a rotating mechanism, and a clamping and cutting mechanism. The rotary lifting rod mechanism, the lifting and translation rod mechanism, and the rotating mechanism are arranged at intervals on the platform from front to back ( Figure 20 , 21 from the left to the right of), and the clamping and cutting mechanism is arranged beside the rotating mechanism.

[0187] The rotary lifting rod mechanism is used to place the conveyed tray 98 on the lifting and translation rod mechanism. The lifting and translation rod mechanism can cooperate with the rotating mechanism and lift the tray beside the film roll 130 arranged in the rotating mechanism. The film roll rotates with the rotatable part in the rotating mechanism and winds the tray and the items placed thereon together.

[0188] The clamping and cutting mechanism is used to clamp the film belt and cut the film belt between the film roll and the tray after the film is wound well; the lifting and translation rod mechanism can push the tray towards the rear end of the rotating mechanism for conveying after the film belt is cut.

[0189] The rotary lifting rod mechanism includes a long rod base 9. On the surface of the front end 108 of the long rod base, a plurality of forward long rods 106 are arranged at intervals. These plurality of long rods are used to receive the conveyed pallets. At least one long rod is provided with an upward convex rod 107 on its outer surface close to the long rod base (in the figure, there are six long rods, and each long rod is provided with a convex rod); the long rod base is connected to the upward cylinder rod of a long rod lifting cylinder 110 (pneumatic lifting cylinder or electric lifting cylinder, preferably pneumatic lifting cylinder) (the orientation in the figure cannot see it). The cylinder body of the long rod lifting cylinder (the cylinder body refers to the outer shell that encloses the cylinder rod and its accessory components) is connected to the upward cylinder rod of a rotary cylinder 111 (pneumatic rotary cylinder or electric rotary cylinder, preferably pneumatic rotary cylinder) (the orientation in the figure cannot see it). The cylinder body of the rotary cylinder (the cylinder body refers to the outer shell that encloses the cylinder rod and its accessory components) is installed at the front end of the platform.

[0190] The above-mentioned platform refers to a structural member that supports or installs other devices. It may be various solid or hollow platform-shaped structures, or a frame-shaped platform as shown in Figures 20 and 21. A floor stand 103 is placed on the ground beside the front end of the platform. A plurality of belt pulleys 100 are respectively arranged at the front and rear ends of the upper end of the floor stand. The plurality of belt pulleys at the front end are driven by a belt pulley motor 99 on the side of the floor stand. A pallet belt 102 with bumps 101 is wound around two belt pulleys in front and rear alignment. Exactly one pallet can be placed between the two front and rear bumps, or the space between the two bumps is slightly larger than the pallet. One long rod can be accommodated between two adjacent pallet belts. Therefore, when the pallets are conveyed, the plurality of long rods are respectively below two adjacent pallet belts. When the bumps rotate the pallet belt backward, they can assist in pushing the pallet backward and finally stop at the pallet belt above the long rod due to being blocked by the convex rods on the long rod. When the plurality of long rods rise, they will lift the pallet upward and make it leave the surface of the pallet belt.

[0191] The lifting and translation rod mechanism includes a moving component, a short rod 112, and a short rod lifting cylinder 113. At the front end and the rear end of the moving component ( Figure 20 、 21 the left and right sides), a lifting cylinder (pneumatic lifting cylinder or electric lifting cylinder, preferably pneumatic lifting cylinder) is respectively provided. The upward cylinder rod of each lifting cylinder (the orientation in the figure cannot see it) is provided with a short rod base 147. A plurality of short rods are respectively arranged at intervals on both short rod bases. Each short rod among the plurality of short rods arranged on the short rod base at the front end is arranged in alignment with each short rod among the plurality of short rods arranged on the short rod base at the rear end. Figure 20 、 21Among them, a short rod seat located at the front end (below the labels 107 and 112 on the left side in the figure) is clamped and installed or fixed with nuts to five protruding rods 107 spaced apart from each other. A short rod is welded or integrally formed at the back of each protruding rod. The outer surface of the short rod is pressed into a groove formed in the upwardly welded or integrally formed bent end 149 at the rear end of the short rod seat. Grooves 150 are also formed in the bent ends on the side of the short rod; another short rod seat located at the rear end (above the label 126 on the right side in the figure) is clamped and installed or fixed with nuts to five protruding rods spaced apart from each other. A short rod is welded or integrally formed at the upper end of each protruding rod. The outer surface of the short rod is pressed into a groove formed in the upwardly welded or integrally formed bent end at the rear end of the short rod seat. Grooves are also formed in the bent ends on the side of the short rod. A push rod 117 facing upward is welded or screwed to the outer surface of the rear end of at least one short rod close to the rotating mechanism. In the figure, all five short rods have push rods.

[0192] The preferred solution is that each short rod among the multiple short rods provided on the short rod seat at the front end is arranged in alignment with each short rod among the multiple short rods provided on the short rod seat at the rear end. Of course, it is also possible that the multiple short rods on the two short rod seats are slightly offset in the axial position relative to each other.

[0193] From Figure 20 、 21 In the length direction from the front end to the rear end, the long rods and short rods are arranged in a staggered manner, that is, the two front and rear short rods that are aligned with each other on the two short rod seats are exactly located between the two more forward long rods. That is to say, the gap between two adjacent short rods can accommodate a long rod, and the gap between two adjacent long rods can accommodate a short rod. The above two short rod seats can be lifted synchronously or separately, and the moving assembly can drive the two short rod seats to reciprocate between the rotary lifting rod mechanism and the rotating mechanism.

[0194] The moving assembly includes a slide rail 127, a moving beam 115, a rod seat frame 114, and a driving component (not shown in the figure). Slide rails are arranged from front to back on the platform between the rotary lifting rod mechanism and the rotating mechanism. A driving component for pushing and pulling the moving beam to move along the slide rail is arranged on the platform. The rod seat frame is arranged on the moving beam, and the two short rod seats are respectively arranged at the front end and the rear end of the rod seat frame.

[0195] The driving component can adopt conventional driving structures such as lead screws, pneumatic cylinders, electric cylinders, rodless cylinders, etc. For example: The slide rails can be two groups ( Figure 20 、 21The longitudinal direction intervals. In the figure, only the one at the label 127 can be seen, and the other one is blocked at the other end of the moving beam and cannot be seen). Inside each group of slide rails are two as shown in Figure 22. A slider 128 is slidably installed on each slide rail, and the slider is fixed to the end of the moving beam by screwing. The moving beam is connected to the piston rod of the pneumatic cylinder, the piston rod of the electric cylinder, or the moving part of the rodless cylinder, so as to realize the sliding translation of the moving beam in the front-back direction on the slide rails. If a lead screw is used, the lead screw can be installed in the middle of the two slide rails, and the motor is used to drive the lead screw to rotate. The nut sleeved outside the lead screw is welded or screwed to the moving beam and fixed together, so that the sliding translation of the moving beam in the front-back direction on the slide rails can also be realized. A rod seat frame is welded or screwed to the moving beam, and the front end and the rear end of the rod seat frame are bent mounting plates 126, and two short rod seats are respectively welded or screwed.

[0196] The rotating mechanism includes a base plate 118, a rotating ring 136, and a film roll 130. The base plate is welded or screwed and fixed on the platform behind the slide rail. An opening 152 is provided on the base plate. The rotating ring is rotatably arranged on the surface of the base plate beside the opening facing the lifting and translation rod mechanism. A concave ring for sleeving the rotating belt 139 is provided on the outer surface of the rotating ring. The other end of the rotating belt is connected to the rotating belt pulley 140 sleeved on the output shaft of the rotating ring motor. The rotating belt pulley rotates and drives the rotating ring to rotate through the rotating belt. A film roll is arranged on one side of the rotating ring. The film roll rotates with the rotation of the rotating ring and can wind the tray and the goods placed thereon together.

[0197] The preferred solution is: A sleeve 137 is arranged on the surface of the base plate beside the opening facing the lifting and translation rod mechanism. The rotating ring is rotatably arranged on the sleeve. At least one adjusting rod seat 133 is arranged on the surface of the base plate outside the sleeve along the radial direction of the opening. An adjusting rod 134 that can move towards the rotating ring is fixed on each adjusting rod seat by a nut. A pressing wheel 135 is installed at the end of the adjusting rod close to the rotating ring. The pressing wheel rolls on the outer surface of the rotating ring when the rotating ring rotates. There are four pressing wheels evenly distributed radially in the figure.

[0198] At the lower end inside the opening, a plurality of support rods 121 (six support rods in the figure) are welded or integrally made by a plurality of convex rods at intervals. The support rods and the short rods on the short rod seats close to them face the same direction (both in the front-back direction). The gap between two adjacent support rods can accommodate a short rod. The gap between two adjacent support rods can accommodate a short rod. From Figure 20 、 21 In the length direction from the front end to the rear end, the support rods and the short rods are also staggeredly arranged, that is, each short rod among the short rods close to the support rods is exactly located between two adjacent support rods at the back. The preferred solution is: Each support rod is exactly aligned with a more forward long rod one by one (in the axial direction, each long rod is aligned with a support rod).

[0199] The mutually approaching ends of the short rod and the support rod can respectively support the front end and the rear end of the tray when the film roll winds the tray and the goods placed thereon together. The support rod can support the tray when the pushing rod pushes the conveying tray towards the rear end of the rotating mechanism.

[0200] A pressing cylinder 120 is screwed and fixed on the substrate beside the opening. The lower end of the downward cylinder rod of the pressing cylinder is welded or screwed and fixed with an extension plate 119 that passes forward through the opening. A pressing plate 138 is adhesively or screwed and fixed on the bottom surface of the extension plate that is aligned with the end of the front end of the support rod.

[0201] The clamping and cutting mechanism includes two clamping jaws 131 and a hot knife 141. As Figure 23 shown, the rotating shaft of the film roll is connected to the rotating ring through the mounting and fixing member 132. The axial direction of the rotating shaft of the film roll is generally the direction from the front end to the rear end of the platform. The end of the film strip of the film roll is located in the space between the short rod and the support rod. At the front end ( Figure 23 left side) of the film strip, there is a fixing frame 122, which is directly fixed to the platform or fixed to the platform through other fixing structures. The cylinder block 129 of the driving cylinder for the clamping jaws is fixed on one fixing frame. At the rear end ( Figure 23 right side) of the film strip, another fixing frame extends out of the opening. This fixing frame is also directly fixed to the platform or fixed to the platform through other fixing structures. The cylinder block of the driving cylinder for the clamping jaws is fixed on the other fixing frame.

[0202] Since the film roll rotates in a circular motion with the rotating ring, in order not to affect the rotation of the film roll, a hot knife lifting cylinder 142 (pneumatic cylinder or electric cylinder, preferably pneumatic cylinder) is welded or screwed and fixed in the platform below the clamping jaws. The upward cylinder rod of the hot knife lifting cylinder is welded or screwed and fixed with a hot knife seat 143. The hot knife is installed on the hot knife seat and is connected to the power supply. The clamping jaws clamp the end of the film strip before the film roll rotates. The clamping jaws release the film strip after the film strip rotates at least one circle and can re-clamp the film strip after winding. The hot knife can rise and cut off the film strip after the clamping jaws re-clamp the film strip.

[0203] In addition to installing the hot knife in a position low enough to avoid collision with the rotating film roll as described above, a translation structure can also be adopted for the entire hot knife. Specifically: A translation cylinder 144 is welded or screwed on the translation cylinder mounting plate 145 of the platform (due to the occlusion of other components, the specific mounting position of the translation cylinder mounting plate on the platform cannot be seen, but this will not affect the understanding and reproduction by those skilled in the art of this installation structure of ordinary mechanical structures connected to each other without affecting the work of other components). The translation cylinder rod 116 of the translation cylinder extends towards the rear. A hot knife lifting cylinder mounting plate (not labeled in the figure) is screwed and installed at the end of the translation cylinder rod. The hot knife lifting cylinder is screwed and fixed on the hot knife lifting cylinder mounting plate.

[0204] A pre-packaging conveyor roller or a pre-packaging conveyor belt 24 is arranged on the right end 25 of the platform at the rear end of the rotating mechanism, and the pre-packaging conveyor roller or the pre-packaging conveyor belt is arranged in alignment with the point of the box-changing conveyor of the packing box conveyor belt.

[0205] The working process of the goods pre-packaging unit is as follows:

[0206] 1. As shown in Figure 20 , the pallet is conveyed to the right side in the figure by the pallet belt and is blocked by the convex rod of the long rod. First, the long rod rises, lifting the pallet together with the book-like goods 148 thereon, so that the long rod is higher than the height of the convex block, and then the long rod rotates backward by 180 degrees.

[0207] 2. After the rotation is completed, the convex rods on the two short rod seats and the upper ends of the push rods are all located below the long rod. The two short rod seats drive a plurality of short rods to gradually rise as shown in Figure 24 . Since there is a gap between the two long rods and this gap allows the short rods on the two short rod seats to pass through, the plurality of short rods on the two short rod seats continue to lift the pallet upward after passing through the gap. The groove 150 made in alignment with the long rod on the bent end just fits into the long rod, which also limits the rising height of the short rod. At this time, the pallet is lifted upward away from the plurality of long rods.

[0208] 3. The two short rod seats translate towards the base plate, and the convex rod, the push rod and the short rod jointly drive the pallet to translate. As shown in Figure 26 , at this time, the plurality of long rods can rotate and return to the position of the pallet belt, and after descending, they wait for the next pallet.

[0209] 4. The two short rod seats continue to translate towards the base plate. When in the position as shown in Figure 27 , one end of the pallet has been supported by the support rod 121. At this time, as shown in the figure, the short rod seat close to the support rod first descends, so that the push rod is located below the pallet, and then the pressing plate 138 descends to press the end of the pallet and the book-like goods thereon located on the support rod.

[0210] 5. The short rod seat close to the long rod descends as shown in Figure 28 , and then the two short rod seats translate as a whole to the left. When the end 146 of the short rod on the right side of the push rod translates to the position approximately vertical in the figure as shown in Figure 29 , the two short rod seats rise, so that the end of the short rod on the right side of the push rod supports the end of the pallet close to it. Finally, it is in the state as shown in Figure 30 .

[0211] At this time, the gripper is clamping the end of the film strip. Then, the film roll rotates along with the rotating ring (the gripper only clamps the edges on both sides of the film strip, and the distance between the gripper and the film roll is very close, so the end of the film bag clamped does not affect the winding of the film strip). The film strip is wound around the tray and the book-like goods. After at least one full turn (preferably two full turns), the film strip has wound the end of the film bag held by the gripper together. The gripper releases, and the film roll continues to rotate. For example, after winding one or two more turns, the film roll stops. The gripper operates and re-clamps the edges on both sides of the film strip (since the film roll is located diagonally above the support rod, after the film roll stops, the edge of the film strip is exactly at the gap after the gripper opens). The hot knife rises and burns through the film strip by the heat generated from being powered on.

[0212] 6. After the film strip is burned through, the two short rod seats Figure 30 translate to the right as shown, and the push rod pushes the pre-packaged combination of the tray and the book-like goods 151 after the film strip is wound, to the right until it passes through the opening and drops onto the conveyor roller or conveyor belt on the platform at the rear end of the substrate. This combination is transported by the conveyor roller or conveyor belt to the packing area to complete packing and other processes.

[0213] During the above working process, encoders or sensors are used at various cylinders or electric cylinders to detect the running distance of the cylinder rod and the running distance of various belts. The connection of these sensors and how to transmit data to the controller are all prior arts and will not be described in detail here.

[0214] In the goods pre-packaging unit, the rotary lifting mechanism receives the tray conveyed by the conveyor roller or conveyor belt. Multiple goods are placed on the tray. The rotary lifting mechanism rises and rotates 180 degrees. Then, the lifting and translating rod mechanism that rises further lifts the tray upward, and then translates the whole towards the rotating mechanism. When the end of the tray touches the support rod, the pressing plate presses the end of this side of the tray and the goods. The lifting and translating rod mechanism descends and the end of the short rod beside the push rod supports the end of the tray on this side. The film roll rotates and winds the tray and the goods together. After the hot knife cuts the film, the lifting and translating rod mechanism translates towards the support rod and pushes the whole tray through the opening onto the conveyor roller or conveyor belt on the platform at the rear end of the substrate. The whole process is smoothly transported and stably supported, ensuring that the film winding is tight. It not only has a high degree of automation but also has a good winding effect, facilitating subsequent packing processing.

[0215] The seeding wall unit, automatic basket-changing unit, detection and placement unit, goods pre-packaging unit, bagging unit, case-opening unit, and case-packing unit are all equipped with their respective control systems. In order to cooperate with the efficient operation of the detection and placement unit, goods pre-packaging unit, and case-opening unit, a bin selection subroutine, a placement control subroutine, and a stacking control subroutine are built into the control system. Their specific functions are as follows: The placement control subroutine is used to control the manipulator to take out all the goods in the basket and place them in the appropriate cells set on the upper surface of the goods placement intermediate rack; the stacking control subroutine is used to control the manipulator to take out the goods from the cells and stack all the goods in the tray according to the rule of larger at the bottom and smaller at the top in terms of size; the bin selection subroutine is used to control the case-opening mechanism in the case-packing unit to select a box of appropriate size and convey it to the case-packing mechanism of the case-packing unit after opening the case.

[0216] In the system composed of the above-mentioned units, various goods can be sorted and packaged, such as common commodity goods with plastic-sealed bags, daily necessities with packaging boxes, electronic products with packaging boxes, books and magazines with plastic-sealed packaging, etc., that is, goods with packaging boxes or plastic-sealed bags.

[0217] 1. The placement control subroutine includes the following steps:

[0218] ⑴ Obtain the length and width dimensions of the topmost good in the current basket, and query the length and width dimensions of the cell.

[0219] ⑵ Compare the numerical values of the length and width of all goods:

[0220] When the length is less than the width, swap the numerical values of the length and width, mark that the good needs to be rotated and adjusted, and proceed to the next step;

[0221] When the length is greater than or equal to the width, do not mark and proceed to the next step;

[0222] ⑶ Select the cell with a length value larger than that of the good and closest to it, and check whether there is already a good placed in the cell;

[0223] ⑷ If there is no good in the cell, control the manipulator to directly place the unmarked good into the found cell, or control the manipulator to rotate and adjust the marked good and then place it into the found cell, and proceed to the next step;

[0224] If there is a good in the cell, mark that the cell cannot be used and return to step ⑶;

[0225] ⑸ Repeat steps ⑴-⑷ until all the goods in the basket are placed in the cells.

[0226] 2. The bin selection subroutine includes the following steps:

[0227] ⑴ Obtain the information of an order;

[0228] ⑵ Find the maximum length of the goods in the order, and search for the box in the containers whose length value is greater than and closest to the maximum length of the goods according to the maximum length.

[0229] ⑶ Find the maximum width of the goods in the order.

[0230] ⑷ Determine whether the goods with the maximum length and the goods with the maximum width are the same:

[0231] If they are the same goods, search for the box in the containers whose two values are both greater than and closest to the goods according to the maximum length and the maximum width of the goods, and go to step ⑹;

[0232] If they are not the same goods, go to the next step;

[0233] ⑸ Compare whether the width value of the box in step ⑵ is greater than the maximum width of the goods.

[0234] If the comparison result is greater, go to step ⑹;

[0235] If the comparison result is smaller, search for the box in the containers whose two values are both greater than and closest to the goods according to the maximum length and the maximum width, and go to step ⑹;

[0236] ⑹ Calculate the total height after stacking all the goods, and compare whether the height value of the currently selected box is greater than the value of the total height after stacking:

[0237] If the comparison result is greater, go to step ⑺;

[0238] If the comparison result is smaller, search for the box in the containers whose three values are both greater than and closest to the goods according to the maximum length, the maximum width and the value of the total height, and go to step ⑺;

[0239] ⑺ Send the box information to the control process of the packing unit, and the control process of the packing unit drives the box-opening mechanism in the packing unit to extract the appropriate box and convey it to the packing mechanism in the packing unit after the box is opened.

[0240] 3. The stacking control subroutine includes the following steps:

[0241] ⑴ Sort the goods according to their lengths, and place the goods with the maximum length along the long direction of the pallet in the pallet.

[0242] ⑵ Select the goods with a slightly smaller length and place them on top of the previous goods.

[0243] ⑶ Repeat step ⑵ until all the goods are stacked on the pallet according to the rule of larger at the bottom and smaller at the top.

[0244] The present invention combines a sowing wall unit, an automatic basket changing unit, a detection and placement unit, a pre-packaging unit, a bagging unit and a boxing unit and interconnects them through conveying rollers or conveyor belts. The whole process is automatically completed, and a packaging box with a suitable size can be selected and the box can be opened in advance, improving work efficiency.

Claims

1. A sorting and packaging system for multiple goods in a single order, comprising a sowing wall unit, a bagging unit, and a boxing unit. Characterized in that: The sowing wall unit includes a rotatable circular bracket, and a plurality of lifting and conveying mechanisms are arranged on the outer surface of the circular bracket. Each lifting and conveying mechanism can catch goods and rotate with the rotation of the circular bracket. The lifting and conveying mechanism can lift the goods to a suitable vertical position and convey them into the corresponding cargo basket. The lifting and conveying mechanism includes a support frame, a conveying component, and a lifting drive motor. The support frame is arranged on the outer surface of the circular bracket. The lifting drive motor arranged on the support frame drives the conveying component to move vertically along the support frame through a belt or a chain. The conveying component is used to catch goods and convey them into the cargo basket. The conveying component includes a bracket, a conveying belt, and a conveying drive motor. The bracket is connected to the belt or the chain. The conveying drive motor arranged on the bracket can drive the conveying belt arranged on the bracket to rotate outward and convey the goods thereon into a plurality of cargo baskets in a cargo basket rack outside the lifting and conveying mechanism. The cargo basket rack is manually pushed or automatically pushed by an intelligent transport vehicle to an automatic basket-changing unit. The automatic basket-changing unit includes a basket-changing bracket, a basket-changing mechanism, and a cargo basket conveying mechanism. The front end of the basket-changing bracket is used to dock the cargo basket rack. A cargo basket conveying mechanism is arranged beside the basket-changing bracket. The basket-changing mechanism arranged in the basket-changing bracket can take out the cargo basket with goods placed therein from the cargo basket rack and convey it away through the cargo basket conveying mechanism. The basket-changing mechanism can convey the empty cargo basket conveyed by the cargo basket conveying mechanism to the empty position in the cargo basket rack. The cargo basket conveying mechanism is arranged outside the rear end of the basket-changing bracket. The cargo basket conveying mechanism includes a roller rack, an upper conveying roller group, and a lower conveying roller group. The upper conveying roller group and the lower conveying roller group are horizontally arranged at intervals at the upper end and the lower end of the roller rack respectively. The two conveying roller groups are respectively used to convey the cargo basket with goods placed therein away and convey the empty cargo basket. An elevating motor is arranged on the basket-changing bracket. The elevating motor drives the basket-changing mechanism to move vertically up and down in the basket-changing bracket through a belt or a chain. The basket-changing mechanism includes a bottom frame and a cargo basket pushing and pulling component. Both sides of the bottom frame are respectively connected to an elevating belt. The two elevating belts are driven by the elevating motor. At least one cargo basket pushing and pulling component for pulling out the cargo basket with goods placed therein and pushing in the empty cargo basket is arranged on the bottom frame. The cargo basket pushing and pulling component includes side plates, a moving seat, and suction cups. The two side plates are horizontally arranged at intervals on the bottom frame. A cargo basket belt extending from the front end to the rear end of the basket-changing bracket is arranged beside each side plate above. A longitudinal suction cup lead screw is arranged between the two side plates. The suction cup lead screw can drive the moving seat to move longitudinally between the two side plates. At least one suction cup is arranged on the moving seat. When the suction cup moves close to the cargo basket rack along with the moving seat, it sucks the outer surface of the side wall of the cargo basket with goods placed therein through vacuum negative pressure and pulls the cargo basket with goods placed therein out of the cargo basket rack to the cargo basket belt as it moves rearward along the side plate. The suction cup can swing between the two side plates when the cargo basket with goods placed therein moves rearward along the cargo basket belt and allow the cargo basket to pass through. The basket belt can push the empty baskets conveyed from any one of the upper conveying roller group or the lower conveying roller group to the position where the baskets are overhead.

2. A sorting and packaging system for single order and multiple goods according to claim 1, characterized in that: the basket belt is driven by a belt motor arranged between two side plates or on the chassis; the suction cup lead screw is driven by a lead screw motor arranged between two side plates or on the chassis; the basket pushing and pulling assemblies are at least two; all the basket belts rotate driven by a belt through shaft or multiple belt shafts connected by couplings, and the belt motor drives the belt through shaft or multiple belt shafts to rotate; all the lead screws rotate driven by a lead screw through shaft or multiple lead screw shafts connected by couplings, and the lead screw motor drives the lead screw through shaft or multiple lead screw shafts to rotate; one side of the moving seat is slidably arranged on the longitudinal slide rail arranged on the same side side plate, the other side of the moving seat is screwed through the suction cup lead screw, a guide post is arranged above the suction cup lead screw, one end of the guide post is connected to the swing plate hinged on the moving seat, the suction cup is arranged at the upper end of the swing plate, the other end of the guide post is slidably embedded in the longitudinal guide groove arranged on the same side side plate, and the rear end of the guide groove is provided with an inclined end bent downward; or, one side of the moving seat is screwed through the suction cup lead screw, a longitudinal guide groove is arranged on the side plate on the other side of the moving seat, the rear end of the guide groove is provided with an inclined end bent downward, the suction cup is arranged at the upper end of the swing plate hinged in the moving seat, the swing plate is connected to one end of a guide post, and the other end of the guide post is slidably embedded in the guide groove; A barcode scanner for scanning the basket is arranged beside any one or both of the upper conveying roller group or the lower conveying roller group.

3. A sorting and packaging system for single order and multiple goods according to claim 2, characterized in that: the upper conveying roller group is respectively connected to the bagging unit and the boxing unit; A detection and placement unit capable of measuring the volume of the goods and placing them is arranged at any one or both of the positions between the bagging unit and the upper conveying roller group or between the boxing unit and the upper conveying roller group. The detection and placement unit includes a placement platform, an intermediate goods placement rack and a manipulator. The manipulator is arranged on the placement platform, and the intermediate goods placement rack is arranged beside the placement platform; the manipulator can take out each good from the basket conveyed from one side of the placement platform and place it in one of the multiple cells arranged on the intermediate goods placement rack; after the manipulator places all the goods of a basket in the cells, it can take out all the goods from the cells one by one and place them in the tray placed on the tray conveying mechanism on the other side of the placement platform according to the placement rules; The upper end surface of the intermediate goods placement rack is provided with multiple cells, and the multiple cells include multiple cells with different sizes and multiple cells with the same size; The tray conveying mechanism includes a floor stand, a pulley motor and a tray belt. Belt pulleys are arranged at the front end and the rear end of the floor stand, the belt pulleys at the front end and the rear end wind the tray belt, bumps are evenly distributed on the surface of the tray belt, and the tray belt between two bumps is used to support the tray; A barcode scanner for identifying the product code in the basket is provided beside the placement platform. After the product code obtained by the barcode scanner is recognized, the manipulator can place the product in a cell with a size larger than that of the product. A tray is placed on the tray belt between two bumps close to the placement platform, and a 3D scanner is provided above the tray.

4. A sorting and packaging system for multiple products in a single order according to claim 3, characterized in that: A product pre-packaging unit is provided at any one or both of the bagging unit and the detection and placement unit or the boxing unit and the detection and placement unit. The product pre-packaging unit includes a platform, a rotary lifting rod mechanism, a lifting and translation rod mechanism, a rotating mechanism, and a clamping and cutting mechanism. The rotary lifting rod mechanism, the lifting and translation rod mechanism, and the rotating mechanism are arranged at intervals from front to back on the platform, and the clamping and cutting mechanism is arranged beside the rotating mechanism; The rotary lifting rod mechanism is used to place the conveyed tray on the lifting and translation rod mechanism. The lifting and translation rod mechanism can cooperate with the rotating mechanism and lift the tray beside the film roll arranged by the rotating mechanism. The film roll rotates with the rotatable part of the rotating mechanism and winds the tray and the products placed thereon together; The clamping and cutting mechanism is used to clamp the film belt and cut the film belt between the film roll and the tray after the film is wound well; The lifting and translation rod mechanism can push the tray backward to the rear end of the rotating mechanism for conveying after the film belt is cut; The rotary lifting rod mechanism includes a long rod seat. A plurality of long rods facing forward are arranged at intervals on the front surface of the front end of the long rod seat. The plurality of long rods are used to receive the tray conveyed by the tray conveying mechanism; At least one long rod is provided with an upward convex rod on the outer surface close to the long rod seat; the long rod seat is connected to the upward cylinder rod of a long rod lifting cylinder, and the cylinder body of the long rod lifting cylinder is connected to the upward cylinder rod of a rotary cylinder, and the rotary cylinder is installed at the front end of the platform; The lifting and translation rod mechanism includes a moving component, short rods, and a short rod lifting cylinder. Lifting cylinders are respectively arranged at the front end and the rear end of the moving component. The upward cylinder rod of each lifting cylinder is provided with a short rod seat, and a plurality of short rods are respectively arranged at intervals on the two short rod seats; The long rods and the short rods are arranged in a staggered manner. The gap between two adjacent short rods can accommodate one long rod, and the gap between two adjacent long rods can accommodate one short rod; the two short rod seats can be lifted synchronously or separately, and at least one short rod close to the rotating mechanism is provided with an upward pushing rod on the outer surface of the rear end; The moving component can drive the two short rod seats to reciprocate between the rotary lifting rod mechanism and the rotating mechanism; The moving component includes a slide rail, a moving beam, a rod seat frame, and a driving component. The slide rail is arranged from front to back on the platform between the rotary lifting rod mechanism and the rotating mechanism. A driving component for pushing and pulling the moving beam to move along the slide rail is arranged on the platform. The rod seat frame is arranged on the moving beam, and the two short rod seats are respectively arranged at the front end and the rear end of the rod seat frame; The rotating mechanism includes a base plate, a rotating ring, and a film roll. The base plate is disposed on the platform behind the slide rail. An opening is provided on the base plate. The rotating ring is rotatably disposed on the surface of the base plate beside the opening facing the lifting and translating rod mechanism. The rotating ring is driven by a rotating ring motor to rotate, and the film roll is disposed on one side of the rotating ring. The film roll rotates as the rotating ring rotates and can wind the tray and the goods placed thereon together. A plurality of support rods are spaced at the lower end within the opening. The support rods and the short rods on the short rod seats adjacent to them face the same direction. The support rods and the short rods are arranged in a staggered manner. The gap between two adjacent support rods can accommodate one short rod. When the film roll winds the tray and the goods placed thereon together, the ends of the short rod and the support rod close to each other can respectively support the front end and the rear end of the tray. The support rods can support the tray when the push rod pushes the conveying tray towards the rear end of the rotating mechanism. A pressing plate is disposed beside the support rods. A sleeve is disposed on the surface of the base plate beside the opening facing the lifting and translating rod mechanism. The rotating ring is rotatably disposed on the sleeve. At least one pressing wheel is disposed on the surface of the base plate outside the sleeve along the radial direction of the opening. The pressing wheel can roll on the outer surface of the rotating ring when the rotating ring rotates.

5. A sorting and packaging system for single-order multiple goods according to claim 4, characterized in that: The clamping and cutting mechanism includes two clamping jaws and a hot knife. A clamping jaw is respectively disposed on both sides of the end of the film belt of the film roll. A liftable hot knife is disposed below the clamping jaws. Before the film roll rotates, the clamping jaws clamp the end of the film belt. After the film belt rotates at least one circle, the clamping jaws release the film belt and can clamp the film belt again after winding. The hot knife can rise and cut off the film belt after the clamping jaws clamp the film belt again.

6. A method for using a sorting and packaging system for single-order multiple goods according to claim 5, characterized in that: It includes the following steps: It includes a cargo box selection subroutine, a placement control subroutine, and a stacking control subroutine. The placement control subroutine is used to control the manipulator to take out all the goods in the cargo basket and place them in the appropriate cells provided on the upper end surface of the goods placement middle shelf. The stacking control subroutine is used to control the manipulator to take out the goods from the cells and stack all the goods in the tray according to the rule of larger size at the bottom and smaller size at the top. The cargo box selection subroutine is used to control the box-opening mechanism in the packing unit to select a box with an appropriate size and convey it to the packing mechanism in the packing unit after opening the box.

7. A method for using a sorting and packaging system for single-order multiple goods according to claim 6, characterized in that: The placement control subroutine includes the following steps: ⑴ Obtain the length and width dimensions of the topmost good in the current cargo basket and query the length and width dimensions of the cell. ⑵ Compare the numerical values of the length and width of all goods: When the length is less than the width, swap the numerical values of the length and width, mark that the good needs to be rotated and adjusted, and proceed to the next step. When the length is greater than or equal to the width, do not mark and proceed to the next step. ⑶ Select the cell with a value greater than and closest to the length of the goods, and check if the goods have been placed in this cell; ⑷ If there are no goods in this cell, control the manipulator to directly place the unmarked goods into the found cell, or rotate and adjust the marked goods before placing them into the found cell, and proceed to the next step; If there are goods in this cell, mark this cell as unusable and return to step ⑶; ⑸ Repeat steps ⑴ - ⑷ until all goods in the basket have been placed into the cells.

8. The method for using a sorting and packaging system for multiple goods in a single order according to claim 6, characterized in that: The subroutine for selecting the shipping container includes the following steps: ⑴ Obtain the information of an order; ⑵ Find the maximum value of the lengths of the goods in the order, and search for the shipping container in the shipping containers with a length value greater than and closest to the maximum length of the goods; ⑶ Find the maximum value of the widths of the goods in the order; ⑷ Determine whether the maximum length and the maximum width are of the same good: If they are of the same good, search for the shipping container in the shipping containers with both values greater than and closest to the goods according to the maximum length and the maximum width of this good, and proceed to step ⑹; If they are not of the same good, proceed to the next step; ⑸ Compare whether the width value of the shipping container in step ⑵ is greater than the maximum width of the goods; If the comparison result is greater, proceed to step ⑹; If the comparison result is smaller, search for the shipping container in the shipping containers with both values greater than and closest to the goods according to the maximum length and the maximum width, and proceed to step ⑹; ⑹ Calculate the total height after stacking all the goods, and compare whether the height value of the currently selected shipping container is greater than the value of the total height after stacking: If the comparison result is greater, proceed to step ⑺; If the comparison result is smaller, search for the shipping container in the shipping containers with all three values greater than and closest to the goods according to the maximum length, the maximum width, and the total height value, and proceed to step ⑺; ⑺ Send the shipping container information to the control process of the packing unit, and the control process of the packing unit drives the box-opening mechanism in the packing unit to extract a suitable shipping container and convey it to the packing mechanism in the packing unit after opening the box.

9. The method for using a sorting and packaging system for multiple goods in a single order according to claim 8, characterized in that: The subroutine for stacking control includes the following steps: ⑴ Sort according to the lengths of the goods, and place the goods with the maximum length along the length direction of the pallet in the pallet; ⑵ Select the goods with a slightly smaller length and place them on top of the previous good; ⑶ Repeat step ⑵ until all goods are stacked on the pallet according to the rule of larger at the bottom and smaller at the top.

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