Unit cargo stacking method, operation system, and operation method thereof

Abstract

The application discloses a unit cargo stacking method, an operation system and an operation method thereof, and relates to the technical field of unit cargo stacking. The unit cargo stacking method comprises the following steps: conveying a first pallet unit to a unit cargo stacking station, and clamping a first unit cargo on the unit cargo stacking station; conveying the first unit cargo from the unit cargo stacking station to a to-and-fro temporary storage station for temporary storage; conveying a second pallet unit to the unit cargo stacking station, and clamping a second unit cargo on the unit cargo stacking station; conveying the first unit cargo from the to-and-fro temporary storage station back to the unit cargo stacking station; and placing the second unit cargo on a top plane of the first unit cargo on the unit cargo stacking station to form a stacked unit cargo. The unit cargo stacked by the application can meet the height requirement of loading design and the height requirement of other operation links.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of the whole vehicle whole body loading and unloading of the collection unit goods in the unit goods unitization logistics operation, and more particularly relates to a unit goods stacking method, an operation system and an operation method thereof. BACKGROUND

[0002] According to the national standard, the definition of unit goods is that a group of goods or packaging pieces are assembled together by one or more means to form a whole unit for loading and unloading, transportation, stacking and storage. The definition of pallet unit is that the whole unit of unit goods and pallet. The packaging pieces are combined and stacked on the pallet, and appropriate fixation is added to facilitate mechanical loading and unloading and transportation. According to the above definition, the unit goods is the whole goods stack unit on the pallet without the pallet.

[0003] In the whole logistics process, the height dimension of the unit goods is generally not in the optimal operation size in different operation links. For example, in the product logistics operation link in the factory, the height of the pallet unit is generally less than 1.6 meters, and the height of the unit goods, especially the high specific gravity unit goods, is smaller. In the transportation link, in order to improve the loading rate of goods, it is often desired that the height of the unit goods matches the height of the vehicle compartment and the container, which is generally 2.3 meters or more. In the train wagon, the optimal height dimension of the unit goods is larger.

[0004] In order to obtain high efficiency and low consumption in the whole logistics operation process, it is necessary to adhere to the high efficiency and low consumption of operation in each operation link, and there should be no omission in any link. Therefore, it is necessary to adjust the height dimension of the unit goods in different operation links in the whole process to the optimal height dimension according to the operation needs for logistics operation. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a unit goods stacking method, an operation system and an operation method thereof for processing the pallet unit into stacked unit goods.

[0006] To solve the above technical problems, the technical scheme provided by the present application is as follows:

[0007] A unit goods stacking method, comprising the following steps:

[0008] S1, conveying a first pallet unit to a unit goods stacking station, clamping the first unit goods on the unit goods stacking station, and lifting to a first specified position height and then moving out the first pallet;

[0009] S2, lowering the first unit goods on the unit goods stacking station to release the lifting and clamping, and then moving the first unit goods from the unit goods stacking station to a shuttle storage station for temporary storage.

[0010] S3, conveying the second palletized unit to the unit stacking station, clamping the second unit, and lifting the second unit to a second designated height and then moving the second unit out of the second pallet;

[0011] S4, moving the first unit from the shuttle station back to the unit stacking station, lowering the second unit from the second designated height on the unit stacking station, and placing the second unit on the top surface of the first unit to form a stacked unit, and releasing the clamp on the second unit;

[0012] S5, moving the stacked unit from the unit stacking station to the shuttle station;

[0013] S6, conveying the stacked unit to the next process on the shuttle station, or storing the stacked unit again on the shuttle station, and repeating S1-S5 to stack the remaining units.

[0014] Further, the system further comprises the step of automatically recycling the pallets.

[0015] A unit stacking system, comprising:

[0016] a stacking unit configured to remove the pallets from the palletized unit to obtain units, and to stack one unit on top of another unit to form a stacked unit;

[0017] a unit stacking station disposed at the stacking unit;

[0018] a front conveyor unit comprising a pallet bidirectional conveying line configured to convey the palletized unit to the unit stacking station, and one end of the pallet bidirectional conveying line being connected to the stacking unit;

[0019] a shuttle station disposed at the shuttle conveyor unit;

[0020] a shuttle conveyor unit comprising a conveying and carrying vehicle configured to convey the unit or the stacked unit between the unit stacking station and the shuttle station.

[0021] Further, the front conveyor unit further comprises an empty pallet recycling line configured to move the empty pallets out of the unit stacking station, and one end of the empty pallet recycling line being connected to the stacking unit through the pallet bidirectional conveying line.

[0022] Further, the tray bidirectional conveying line comprises a roller conveying line and a chain conveying line; wherein the outer section of the tray bidirectional conveying line is the roller conveying line, and the outer end of the roller conveying line is connected to the tray container unit input end; the inner section of the tray bidirectional conveying line is the chain conveying line, and the inner end of the chain conveying line is located at the unit goods stacking station, and the outer end of the chain conveying line is connected to the inner end of the roller conveying line.

[0023] Further, the empty tray recycling line comprises a jacking, turning and transferring conveyor and an empty tray roller line; wherein the jacking, turning and transferring conveyor is provided with two connected conveyors, one of which is arranged at the roller conveying line, and the other is arranged at the empty tray roller line on the side of the roller conveying line.

[0024] Further, the stacking machine group comprises a main stand and a stacking machine, wherein the main stand is arranged at the unit goods stacking station; the stacking machine is installed on the main stand in a liftable manner, and is used for clamping and lifting the unit goods.

[0025] Further, the stacking machine comprises a clamping frame, at least two-directional or four-directional clamps for clamping the unit goods, and a lifting transmission device; wherein the lifting transmission device is fixedly installed on the main stand, the output end of the lifting transmission device is fixedly connected to the clamping frame, and the two-directional or four-directional clamps are oppositely installed on the clamping frame in pairs.

[0026] Further, the clamping frame comprises an integral frame structure and a lifting connecting part, wherein the lifting connecting part is fixedly installed on the integral frame structure, and is fixedly connected to the lifting transmission device.

[0027] Further, the clamping frame further comprises a roller, which is arranged on the outer side of the integral frame structure and abuts against the main stand.

[0028] Further, the integral frame structure comprises two horizontal frames, four corner vertical rods, and clamping plate vertical rods; wherein the two horizontal frames are fixedly connected together through a plurality of the four corner vertical rods, a pair of the clamping plate vertical rods is arranged between adjacent two of the four corner vertical rods, and each pair of the clamping plate vertical rods is arranged opposite to another pair of the clamping plate vertical rods.

[0029] Further, the four-directional clamp comprises a four-directional clamping plate and a clamping power, wherein the fixed end of the clamping power is arranged on the clamping frame, and the telescopic end of the clamping power acts on the four-directional clamping plate.

[0030] Further, the four-directional clamp further comprises a clamping scissor frame, which is telescopically arranged between the four-directional clamping plate and the corresponding clamping plate vertical rod.

[0031] Further, the double upper fork ends of the clamping scissor frame are fixedly connected with the upper parts of the four-way clamping plate and the clamping plate vertical rod, and the double lower fork ends of the clamping scissor frame are slidably connected with the lower parts of the four-way clamping plate and the clamping plate vertical rod; the telescopic end of the clamping power is arranged on the clamping scissor frame.

[0032] Further, the four-way clamping further comprises an elastic panel, which is laid on the working surface of the four-way clamping plate.

[0033] Further, the lifting transmission device comprises a lifting power, a transmission shaft, a lifting sprocket and a lifting chain, wherein the lifting power is fixedly installed on the main stand; the lifting sprocket is correspondingly fixedly arranged on the upper and lower parts of the main stand; one end of the transmission shaft is connected with the output shaft of the lifting power, and the other end is connected with the lifting sprocket; the lifting chain is wound on the lifting sprocket, and both ends are fixedly connected with the clamping frame.

[0034] Further, the temporary storage and transfer unit further comprises a conveying transfer vehicle sliding rail, the inner section of the conveying transfer vehicle sliding rail is provided with the back-and-forth temporary storage station, and the outer section of the conveying transfer vehicle sliding rail is arranged at the unit goods stacking station; the conveying transfer vehicle is slidably arranged on the conveying transfer vehicle sliding rail and reciprocally moves between the back-and-forth temporary storage station and the unit goods stacking station.

[0035] Further, the conveying transfer vehicle comprises a transfer vehicle body, a flat-top chain conveying device and a flat-top chain transmission device, wherein the flat-top chain conveying device is sleeved on the flat-top chain transmission device and laid on the upper surface of the transfer vehicle body, and the conveying direction of the flat-top chain conveying device is the same as the moving direction of the conveying transfer vehicle.

[0036] Further, the temporary storage and transfer unit further comprises an integrated frame, and the conveying transfer vehicle sliding rail and the chain conveying line of the front conveying unit are laid on the integrated frame.

[0037] A unit goods stacking operation method of a unit goods stacking operation system, wherein the unit goods stacking operation system comprises:

[0038] A stacking unit for removing the pallets of the palletized unit to obtain unit goods and stacking one unit goods on the top surface of another unit goods to form stacked unit goods;

[0039] A unit goods stacking station arranged at the stacking unit;

[0040] A front conveying unit comprising a pallet bidirectional conveying line for conveying the palletized unit to the unit goods stacking station, one end of which is connected with the stacking unit.

[0041] A return temporary storage station is arranged at the temporary transfer machine group;

[0042] The temporary transfer machine group comprises a transfer carriage for transferring the unit goods or the stacked unit goods between the unit goods stacking station and the return temporary storage station;

[0043] The operation method comprises the following steps:

[0044] P1, a first tray unit is transferred to the unit goods stacking station by the front transfer machine group, the first unit goods of the first tray unit are gripped by the stacking machine group at the unit goods stacking station, and the first tray is removed after being lifted to a first designated position height, while the transfer carriage is moved to the unit goods stacking station;

[0045] P2, the first unit goods are lowered to be released from the lifting by the stacking machine group at the unit goods stacking station, the first unit goods are seated on the transfer carriage after being gripped, and the first unit goods are transferred from the unit goods stacking station to the return temporary storage station by the transfer carriage for temporary storage;

[0046] P3, a second tray unit is transferred to the unit goods stacking station by the front transfer machine group, the second unit goods of the second tray unit are gripped by the stacking machine group at the unit goods stacking station, and the second tray is removed after being lifted to a second designated position height, while the transfer carriage carrying the first unit goods is transferred from the return temporary storage station back to the unit goods stacking station;

[0047] P4, the second unit goods are lowered from the second designated position height at the unit goods stacking station, and are seated on the top plane of the first unit goods on the transfer carriage to form a stacked unit goods, and the second unit goods are released from the gripping;

[0048] P5, the transfer carriage carrying the stacked unit goods is transferred from the unit goods stacking station to the return temporary storage station;

[0049] P6, the stacked unit goods are transferred to the next process at the return temporary storage station, or are temporarily stored again at the return temporary storage station, and the stacking operation of the remaining unit goods is repeated by P1-P5.

[0050] The beneficial effects of the present application are as follows:

[0051] The unit goods stacking operation system of the present application makes the processed stacking unit goods meet the height requirements of the loading design and other operation links, and through the collection of the stacking unit goods in the subsequent process and the whole vehicle loading operation of the collected unit goods, the high-efficiency, low-consumption and green environmental protection logistics operation effect can be finally obtained. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 is a perspective structural schematic view of the unit goods stacking operation system of the present application in a preferred embodiment;

[0053] Figure 2 is a perspective structural schematic view of the tray bidirectional conveying line and temporary storage transfer machine group of the present application in a preferred embodiment;

[0054] Figure 3 is a perspective structural schematic view of the stacking machine group of the present application in a preferred embodiment;

[0055] Figure 3.1 is a perspective structural schematic view of the four-way clamping in a preferred embodiment of the present application;

[0056] Figure 3.2 is a side view of the four-way clamping in a preferred embodiment of the present application;

[0057] Figure 4 is a perspective structural schematic view of the temporary storage transfer machine group of the present application in a preferred embodiment. DETAILED DESCRIPTION

[0058] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0061] Furthermore, the terms "first", "second", "third", etc. are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" or "third" can include, explicitly or implicitly, one or more of such features. In the description of the application, the meaning of "a plurality" is two or more, unless explicitly specified otherwise.

[0062] The present application discloses a unit cargo stacking method, comprising the following steps:

[0063] S1, conveying a first pallet unit to a unit cargo stacking station, clamping the first unit cargo on the unit cargo stacking station, and lifting the first unit cargo to a first designated position height and then removing the first pallet;

[0064] S2, lowering the first unit cargo on the unit cargo stacking station to release the lifting and clamping, and then conveying the first unit cargo from the unit cargo stacking station to a shuttle storage station for storage;

[0065] S3, conveying a second pallet unit to the unit cargo stacking station, clamping the second unit cargo on the unit cargo stacking station, and lifting the second unit cargo to a second designated position height and then removing the second pallet;

[0066] S4, conveying the first unit cargo from the shuttle storage station back to the unit cargo stacking station, lowering the second unit cargo from the second designated position height on the unit cargo stacking station, and corresponding to the top surface of the first unit cargo to form a stacked unit cargo, and releasing the clamping of the second unit cargo;

[0067] S5, conveying the stacked unit cargo from the unit cargo stacking station to the shuttle storage station;

[0068] S6, conveying the stacked unit cargo to the next process on the shuttle storage station, or storing again on the shuttle storage station, and repeating S1-S5 to stack the remaining unit cargo.

[0069] The present application also provides a unit cargo stacking operation system capable of realizing the above-mentioned unit cargo stacking method. Please refer to Figures 1-4 , a preferred embodiment of the present application, the unit cargo stacking operation system, comprising:

[0070] The stacking unit 2 is used to remove the pallets of the pallet unit to obtain unit cargos, and to stack one unit cargo on the top surface of another unit cargo to form a stacked unit cargo.

[0071] Unit goods stacking station, arranged at the stacking group 2;

[0072] Front conveyor group 1, comprising a tray bidirectional conveying line 10 for conveying tray container units to the unit goods stacking station, one end of which is connected with the stacking group 2;

[0073] Round-trip temporary storage station, arranged at the temporary storage transfer group;

[0074] Temporary storage transfer group 3, comprising a conveying transfer vehicle 30 for conveying the unit goods or the stacked unit goods between the unit goods stacking station and the round-trip temporary storage station.

[0075] The following will be further described in detail respectively.

[0076] By Figure 1 And referring to Figure 2 , the front conveyor group 1 comprises a tray bidirectional conveying line 10 and an empty tray recycling line 11 arranged perpendicularly to each other, both of which can be connected in conveying with the stacking group 2; wherein the tray bidirectional conveying line 10 and the temporary storage transfer group 3 are arranged on the same straight line.

[0077] By Figure 2 It can be seen that the tray bidirectional conveying line 10 comprises a roller conveying line 100 and a chain conveying line 101. Specifically, the outer section of the tray bidirectional conveying line 10 is the roller conveying line 100, and the outer end of the roller conveying line 100 is connected with the tray container unit input end; the inner section of the tray bidirectional conveying line 10 is the chain conveying line 101, and the inner end of the chain conveying line 101 is at the unit goods stacking station, and the outer end thereof is connected with the inner end of the roller conveying line 100. Wherein, the unit goods stacking station is arranged in the stacking group 2 on the chain conveying line 101. The chain conveying line 101 is arranged on the upper plane of the outer section of the following integrated frame 32.

[0078] By Figure 2 It can also be seen that the empty tray recycling line 11 comprises a jacking and turning transfer conveying machine 110 and an empty tray roller line 111. Wherein, the jacking and turning transfer conveying machine 110 is provided with two machines connected in series, one on the right side is arranged at the roller conveying line 100, and one on the left side is arranged at the empty tray roller line 111. The empty tray recycling line 11 can force the tray bidirectional conveying line 10 to change direction by 90 degrees to output and recycle.

[0079] The main function of the front conveyor group 1 is that when working, the tray container unit is input from the roller conveyor line 100 of the tray bidirectional conveying line 10, and is relayed to the unit goods stacking station in the stacking group 2 through the chain conveyor line 101. At the unit goods stacking station, the unit goods of the tray container unit are clamped and lifted by the stacking group 2, and then the tray of the tray container unit is output back through the chain conveyor line 101 and the roller conveyor line 100 of the tray bidirectional conveying line 10, and is output back through the empty tray recycling line 11.

[0080] Figure 1 Figure 3 Figure 3.1 Figure 3.2 The stacking group 2 mainly includes a main stand 20 and a stacking machine 21.

[0081] The main stand 20 is fixedly arranged at the unit goods stacking station and corresponds to the above-mentioned chain conveyor line 101 and the below-mentioned conveying and transferring vehicle sliding rail 31. Figure 3 The main stand 20 includes four columns 200, a flat pull rod 201 and a column base 202. The four columns 200 are connected into an integrated structure by the array of flat pull rods 201, the column base 202 is arranged at the bottom of the four columns 200, and the main stand 20 is installed on the ground through the column base 202.

[0082] The stacking machine 21 includes a clamping frame 210, a four-way clamp 211 and a lifting transmission device 212. Figure 3 Figure 3.1 3.2 The stacking machine 21 is arranged in the four columns 200 in a lifting manner, and the lifting transmission device 212 of the stacking machine 21 is arranged on the flat pull rod 201 and the four columns 200 at the top of the main stand 20. Figure 3 In a preferred embodiment of the present application, the clamping frame 210 includes an overall frame structure, a lifting connecting part 2103 and a roller 2104.

[0083] Figure 3.1 The overall frame structure includes upper and lower horizontal frames 2100, four-corner vertical rods 2101 and clamping plate vertical rods 2102. The upper and lower horizontal frames 2100 are arranged in an upper and lower structure, and the four corners of the upper and lower horizontal frames 2100 are connected by the four-corner vertical rods 2101. A pair of clamping plate vertical rods 2102 are arranged between the four-corner vertical rods 2101, and the upper and lower horizontal frames 2100, the four-corner vertical rods 2101 and the clamping plate vertical rods 2102 are connected into the overall frame structure of the clamping frame 210. 3.2

[0084] ​​​​​​​​

[0085] Lifting connecting parts 2103 are arranged on the upper and lower four corners of the holding frame 210, and are fixedly connected with lifting chains 2123 of the lifting transmission device 212. During operation, the holding frame 210 is lifted and lowered by the lifting chains 2123.

[0086] A plurality of rollers 2104 are arranged on the outer sides of the upper and lower ends of the four-corner vertical rods 2101, and the rollers 2104 can constrain and position the horizontal position and lifting movement of the holding frame 210 in the main stand 20.

[0087] The four-way holding clamps 211 are symmetrically arranged in the holding frame 210 along the vertical center line of the holding frame 210. Specifically, as shown in Figure 3.1 、 3.2 The four-way holding clamps 211 include a four-way holding clamp plate 2110, a holding clamp scissor frame 2111, a holding clamp power 2112, and an elastic panel (not shown in the figure), wherein the four-way holding clamp plate 2110 is connected with the holding clamp plate vertical rod 2102 through the holding clamp scissor frame 2111.

[0088] Specifically, the double upper fork ends of the holding clamp scissor frame 2111 are fixedly hinged with the upper parts of the four-way holding clamp plate 2110 and the holding clamp plate vertical rod 2102 through hinged round holes 2113, and the double lower fork ends of the holding clamp scissor frame 2111 are slidably hinged with the lower parts of the four-way holding clamp plate 2110 and the holding clamp plate vertical rod 2102 through long sliding grooves 2114.

[0089] The fixed end of the holding clamp power 2112 is arranged on the holding frame 210, and the telescopic end of the holding clamp power 2112 is arranged on the holding clamp scissor frame 2111. During operation, the four-way holding clamp plate 2110 is clamped inward or loosened outward by the pushing and pulling movement of the holding clamp power 2112 and the action of the holding clamp scissor frame 2111. Preferably, the holding clamp power 2112 is an oil cylinder, and it can be understood that the holding clamp power 2112 can also be a gas cylinder or a motor.

[0090] An elastic panel made of elastic material is laid on the operation surface of the four-way holding clamp plate 2110 to increase the friction during operation.

[0091] It can be understood that when the unit goods of the tray container unit can be effectively clamped by the front and rear or left and right holding clamps, the four-way holding clamp structure (four-way holding clamp plate 2110) of the stacking machine 21 can also be simplified to a two-way holding clamp structure.

[0092] As shown in Figure 3 、 Figure 3.1 、 3.2As shown, two sets of lifting transmission devices 212, arranged in opposite positions, include a lifting power source 2120, a drive shaft 2121, a lifting sprocket 2122, and a lifting chain 2123. The lifting power source 2120 is mounted on the top flat tie rod 201 of the main frame 20. The lifting sprockets 2122 are correspondingly fixedly mounted on the upper and lower parts of the four columns 200, and the lifting sprockets 2122 mounted on the upper part of the four columns 200 are connected to the lifting power source 2120 via the drive shaft 2121. The lifting chain 2123 passes over the upper and lower lifting sprockets 2122 mounted on the four columns 200, and both ends of the lifting chain 2123 are respectively fixedly connected to the lifting connection parts 2103 located at the upper and lower four corners of the clamp frame 210.

[0093] With this configuration, the stacker 21 can be raised and lowered within the main frame 20 under the action of the lifting transmission device 212 according to operational needs. During the lifting process, the rollers 2104 located at the four corners of the upper and lower horizontal frames 2100 allow the stacker 21 to be positioned horizontally in four directions by means of the constraints of the four columns 200.

[0094] The main function of the stacking unit 2 is to clamp the palletized goods of the unit cargo that enters the unit cargo stacking station through the front conveyor unit 1 in four directions or two directions, and then lift the unit cargo to a first specified height position and pause. The empty pallet after being separated from the unit cargo is retrieved through the front conveyor unit 1. At the same time, the conveyor transfer vehicle 30 is moved to the unit cargo stacking station in the stacking unit 2, the unit cargo at the first specified height position is released from lifting, and the unit cargo is placed on the conveyor transfer vehicle 30 and then the clamping is released. The conveyor transfer vehicle 30 carrying the unit cargo is then moved from the unit cargo stacking station to the reciprocating temporary storage station for temporary storage. The above operation process is repeated, and according to the operation flow, the unit cargo is clamped and lifted to a second or third specified height position and the follow-up operation flow is completed, thus realizing the unit cargo stacking operation.

[0095] Depend on Figure 1 , Figure 4 See also Figure 2 This is a schematic diagram of an embodiment of the temporary storage and transfer unit 3. The temporary storage and transfer unit 3 includes a transport vehicle 30, a transport vehicle slide rail 31, and an integrated frame 32.

[0096] Depend on Figure 4 As can be seen, a pair of parallel and symmetrical conveyor rails 31 are arranged within the integrated frame 32. The inner section of the conveyor rail 31 is equipped with a reciprocating temporary storage station, while the outer section is positioned at the unit goods stacking station within the stacking unit 2. The conveyor trolley 30 is slidably mounted on the conveyor rail 31 and reciprocates between the reciprocating temporary storage station and the unit goods stacking station via the conveyor rail 31.

[0097] Depend on Figure 4 As can be seen, the transfer vehicle 30 includes a transfer vehicle body 300, a flat-top chain conveyor 301, a flat-top chain drive device 302, and a transfer drive device 303. The transfer vehicle body 300 is the main structure of the transfer vehicle 30, and the flat-top chain conveyor 301 and the flat-top chain drive device 302 are mounted on the transfer vehicle body 300. The flat-top chain conveyor 301 and the flat-top chain drive device 302 form a flat-top chain conveyor line on the transfer vehicle body 300.

[0098] The transfer transmission device 303 includes a drive power source (not shown in the figure) and a moving rack 3030. The drive power source (not shown in the figure) is located at the lower part of the transfer vehicle body 300, and its output end meshes with the moving rack 3030. The moving rack 3030 is correspondingly laid on the integrated frame 32.

[0099] Furthermore, the lower part of the transfer vehicle body 300 is provided with a movable slider (not shown in the figure). The transfer vehicle body 300 is slidably mounted on the transfer vehicle slide rail 31 via the movable slider, and the transfer vehicle 300 is reciprocated on the transfer vehicle slide rail 31 by the driving power (not shown in the figure) and the driving and transmission action of the movable rack 3030.

[0100] The planar dimensions of the transfer vehicle 30 are related to the planar dimensions of the pallet; the moving direction of the transfer vehicle 30 is the same as the conveying direction of the flat-top chain conveyor 301; the dynamic output end of the transfer vehicle 30 connects to the next unit of cargo collection operation.

[0101] Depend on Figure 4 As can be seen, the integrated frame 32 consists of four uprights (not shown in the figure) at the four corners, a central composite vertical rod in the middle, and longitudinal and transverse tie rods. At the top of the integrated frame 32, longitudinal conveyor rails 31 and chain conveyor lines 101 are respectively arranged. Specifically, at the unit goods stacking station within the stacking unit 2, the conveyor rails 31 and chain conveyor lines 101 have an overlapping section. Within this overlapping section, the conveyor rails 31 are symmetrically arranged within the chain conveyor lines 101.

[0102] The main function of the temporary storage transfer machine group 3 is to move the transfer vehicle 30 through the transfer vehicle track 31 between the unit goods stacking station and the temporary storage station for reciprocating movement during operation. At the unit goods stacking station, the transfer vehicle 30 first carries the first unit goods after the tray is removed and the clamping is released by the stacking machine group 2, and moves the first unit goods from the unit goods stacking station to the temporary storage station for temporary storage, and vacates the unit goods stacking station. When the second unit goods complete the tray removal and clamping lifting at the unit goods stacking station, the transfer vehicle 30 carries the first unit goods from the temporary storage station back to the unit goods stacking station, and then the stacking machine group 2 releases the lifting and clamping of the second unit goods, so that the second unit goods are placed on the top surface of the first unit goods, completing the operation of forming a stacked unit goods from the first unit goods and the second unit goods. The transfer vehicle 30 carries the stacked unit goods to the temporary storage station by moving, and according to the operation requirements, the stacked unit goods are output from the transfer vehicle 30 to the next assembly operation process at the temporary storage station, or the transfer vehicle 30 and the stacked unit goods are moved back to the unit goods stacking station for the third unit goods stacking operation.

[0103] The present application also provides a unit goods stacking operation system for the unit goods stacking method described above, which comprises the following steps:

[0104] P1, the first tray assembly unit is transported to the unit goods stacking station by the tray bidirectional conveying line 10, and the first unit goods of the first tray assembly unit is clamped and lifted to the first specified position height by the stacking machine group 2 at the unit goods stacking station, and then the first tray is removed, and the first tray is recycled by the tray bidirectional conveying line 10 and the empty tray recycling line 11, and the transfer vehicle 30 is moved to the unit goods stacking station;

[0105] P2, at the unit goods stacking station, the first unit goods is lowered and released from the lifting by the stacking machine group 2, and then the first unit goods is placed on the transfer vehicle 30 and released from the clamping, and then the first unit goods is moved from the unit goods stacking station to the temporary storage station by the transfer vehicle 30 for temporary storage;

[0106] P3, the second tray assembly unit is transported to the unit goods stacking station by the tray bidirectional conveying line 10, and the second unit goods of the second tray assembly unit is clamped and lifted to the second specified position height by the stacking machine group 2 at the unit goods stacking station, and then the second tray is removed, and the second tray is recycled by the tray bidirectional conveying line 10 and the empty tray recycling line 11, and the transfer vehicle 30 carrying the first unit goods is moved from the temporary storage station back to the unit goods stacking station;

[0107] P4, lowering the second unit goods from the second designated position height and corresponding to the top plane of the first unit goods on the conveying transfer vehicle 30 to form a stacked unit goods, and releasing the second unit goods from the clamp;

[0108] P5, moving the conveying transfer vehicle 30 carrying the stacked unit goods from the unit goods stacking station to the return temporary storage station;

[0109] P6, conveying the stacked unit goods to the next process at the return temporary storage station; or temporarily storing again at the return temporary storage station, repeating P1-P5 operations to stack the third unit goods or more unit goods.

[0110] The unit goods stacking operation system of the present application makes the processed stacked unit goods meet the height requirements of the truck design and other operation links, and through the collection of the stacked unit goods in the subsequent process and the whole truck whole body loading operation of the collected unit goods, finally obtains the logistics operation effect of high efficiency, low consumption and green environmental protection.

[0111] The above is only the preferred embodiment of the present application. For those skilled in the art, according to the idea of the present application, many changes can be made in the specific implementation and application range, as long as these changes do not deviate from the concept of the present application, they all belong to the protection scope of the present application.

Claims

1. A unit cargo stacking operation system, characterized in that, include: A stacking unit (2) is used to remove the pallets from a palletized container unit to obtain unit goods, and to stack one unit goods onto the top surface of another unit goods to form stacked unit goods; the stacking unit (2) includes a main frame (20) and a stacking machine (21), wherein the main frame (20) is located at the unit goods stacking station; the stacking machine (21) is vertically mounted on the main frame (20) and is used to clamp and lift the unit goods; The unit cargo stacking station is located at the stacking unit (2); The front conveyor unit (1) includes a bidirectional pallet conveyor line (10) for conveying palletized units to the unit goods stacking station, one end of which is connected to the stacking unit (2); the front conveyor unit (1) also includes an empty pallet recovery line (11) for removing empty pallets from the unit goods stacking station, one end of which is connected to the stacking unit (2) via the bidirectional pallet conveyor line (10); the bidirectional pallet conveyor line (10) and the empty pallet recovery line (11) are perpendicular to each other; The bidirectional pallet conveyor line (10) includes a roller conveyor line (100) and a chain conveyor line (101); wherein, the outer section of the bidirectional pallet conveyor line (10) is the roller conveyor line (100), and the outer end of the roller conveyor line (100) is connected to the input end of the pallet container unit; the inner section of the bidirectional pallet conveyor line (10) is the chain conveyor line (101), and the inner end of the chain conveyor line (101) is located at the unit goods stacking station, and its outer end is connected to the inner end of the roller conveyor line (100); The empty pallet recycling line (11) includes a lifting, turning, and transferring conveyor (110) and an empty pallet roller line (111); wherein, the lifting, turning, and transferring conveyor (110) is provided with two connected units, one of which is located at the roller conveyor line (100) and the other is located at the empty pallet roller line (111); Traveling to and from the temporary storage station; The temporary storage and transfer unit (3) includes a transport vehicle (30) for transporting the unit goods or the stacked unit goods back and forth between the unit goods stacking station and the reciprocating temporary storage station; the pallet bidirectional conveyor line (10) is arranged on the same straight line as the temporary storage and transfer unit (3); The temporary storage and transfer unit (3) also includes a conveyor rail (31), with the reciprocating temporary storage station provided in the inner section of the conveyor rail (31) and the outer section of the conveyor rail (31) provided at the unit goods stacking station; the conveyor rail (30) is slidably mounted on the conveyor rail (31) and moves back and forth between the reciprocating temporary storage station and the unit goods stacking station; The temporary storage and transfer unit (3) also includes an integrated frame (32), on which the conveyor rail (31) and the chain conveyor line (101) of the front conveyor unit (1) are laid.

2. The unit cargo stacking system according to claim 1, characterized in that, The stacker (21) includes a clamping frame (210), two-way or four-way clamps (211) for clamping the unit goods, and a lifting transmission device (212); wherein, the lifting transmission device (212) is fixedly installed on the main frame (20), and its output end is fixedly connected to the clamping frame (210), and the two-way or four-way clamps (211) are installed in pairs facing each other on the clamping frame (210).

3. The unit cargo stacking system according to claim 2, characterized in that, The clamping frame (210) includes an overall frame structure and a lifting connection part (2103), wherein the lifting connection part (2103) is fixedly installed on the overall frame structure and is fixedly connected to the lifting transmission device (212).

4. The unit cargo stacking system according to claim 3, characterized in that, The clamping frame (210) also includes rollers (2104), which are located on the outside of the overall frame structure and abut against the main support frame (20).

5. The unit cargo stacking system according to claim 3 or 4, characterized in that, The overall frame structure includes two horizontal frames (2100), four corner vertical bars (2101), and clamping plate vertical bars (2102); wherein, the two horizontal frames (2100) are fixedly connected together by a plurality of four corner vertical bars (2101), and a pair of clamping plate vertical bars (2102) are provided between two adjacent four corner vertical bars (2101), and each pair of clamping plate vertical bars (2102) is arranged opposite to another pair of clamping plate vertical bars (2102).

6. The unit cargo stacking system according to claim 5, characterized in that, The four-way clamp (211) includes a four-way clamp plate (2110) and a clamping power (2112), wherein the fixed end of the clamping power (2112) is disposed on the clamp frame (210).

7. The unit cargo stacking system according to claim 6, characterized in that, The four-way clamp (211) also includes a clamp scissor lift (2111), which is telescopically disposed between the four-way clamp plate (2110) and the corresponding clamp plate vertical bar (2102).

8. The unit cargo stacking system according to claim 7, characterized in that, The double upper fork ends of the clamp scissor lift (2111) are fixedly hinged to the upper parts of the four-way clamp plate (2110) and the clamp plate vertical rod (2102), respectively. The double lower fork ends of the clamp scissor lift (2111) are slidably hinged to the lower parts of the four-way clamp plate (2110) and the clamp plate vertical rod (2102), respectively. The telescopic end of the clamp power (2112) is provided on the clamp scissor lift (2111).

9. The unit cargo stacking system according to claim 8, characterized in that, The four-way clamp (211) also includes an elastic panel, which is laid on the working surface of the four-way clamp plate (2110).

10. The unit cargo stacking system according to claim 2, characterized in that, The lifting transmission device (212) includes a lifting power source (2120), a drive shaft (2121), a lifting sprocket (2122), and a lifting chain (2123). The lifting power source (2120) is fixedly installed on the main frame (20). The lifting sprocket (2122) is correspondingly fixedly installed on the upper and lower parts of the main frame (20). One end of the drive shaft (2121) is connected to the output shaft of the lifting power source (2120), and the other end is connected to the lifting sprocket (2122). The lifting chain (2123) is wound around the lifting sprocket (2122), and both ends of the lifting chain (2123) are fixedly connected to the clamp frame (210).

11. The unit cargo stacking system according to claim 1, characterized in that, The transport vehicle (30) includes a vehicle body (300), a flat-top chain conveyor (301), and a flat-top chain transmission device (302). The flat-top chain conveyor (301) is mounted on the flat-top chain transmission device (302) and laid on the upper surface of the vehicle body (300). The conveying direction of the flat-top chain conveyor (301) is the same as the moving direction of the transport vehicle (30).

12. A method for operating a unit cargo stacking system as described in any one of claims 1-11, characterized in that, The operation method includes the following steps: P1. The first pallet container unit is transported to the unit goods stacking station via the pallet bidirectional conveyor line (10). At the unit goods stacking station, the stacking machine (2) clamps the first unit goods of the first pallet container unit and lifts them to the first designated position height before removing the first pallet. At the same time, the conveying transfer vehicle (30) is moved to the unit goods stacking station. P2. At the unit goods stacking station, the stacking machine (2) is used to lower and release the first unit goods, so that the first unit goods are placed on the conveying transfer vehicle (30) and the clamp is released. Then, the first unit goods are transferred from the unit goods stacking station to the reciprocating temporary storage station for temporary storage by the conveying transfer vehicle (30). P3. The second pallet container unit is transported to the unit goods stacking station via the bidirectional pallet conveyor line (10). At the unit goods stacking station, the stacking machine (2) clamps the second unit goods of the second pallet container unit and lifts it to the second designated position height before removing the second pallet. The transport transfer vehicle (30) carrying the first unit goods is transferred back from the reciprocating temporary storage station to the unit goods stacking station. P4. At the unit cargo stacking station, the second unit cargo is lowered from the second designated position height and placed on the top plane of the first unit cargo on the conveying transfer vehicle (30) to form a stacked unit cargo, and the clamping of the second unit cargo is released. P5. The transport vehicle (30) carrying the stacked unit goods is transferred from the stacking station to the reciprocating temporary storage station. P6. Transport the stacked unit goods to the next process at the reciprocating temporary storage station; or temporarily store them again at the reciprocating temporary storage station and repeat P1-P5 to stack the remaining unit goods.

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