Unit cargo return type collection into a whole vehicle overall cargo stacking operation system and method

Abstract

The present invention discloses a system and method for collecting unit cargo into a whole vehicle cargo stack, wherein the method comprises the following steps: P1, placing the first longitudinal unit cargo and the first transverse unit cargo on the left column collection conveyor line of the return platform and the right column collection conveyor line of the return platform respectively, and a gap is provided between the left column collection conveyor line of the return platform and the right column collection conveyor line of the return platform to form a first row of unit cargo to be collected; P2, then placing the second transverse unit cargo and the second longitudinal unit cargo on the left column collection conveyor line of the return platform and the right column collection conveyor line of the return platform to form a second row of unit cargo to be collected; P3, bringing the left column collection conveyor line of the return platform and the right column collection conveyor line of the return platform closer to each other, so that the same row of cargo stacks of the left and right columns of unit cargo are close together, and then conveying the second row of unit cargo to be collected forward at the same time, so that the second row of unit cargo to be collected is close to the first row of unit cargo to be collected.

Description

Technical Field

[0001] The present invention belongs to the technical field of unit cargo unitized logistics technology and the overall loading of unit cargo into a vehicle, and specifically relates to an operation system and method for stacking unit cargo into a vehicle. Background Art

[0002] A unit load is defined as a group of goods or packages assembled together through one or more means to form a complete unit for easy loading, unloading, transportation, stacking, and storage. A palletized unit is defined as a unit load combined with a pallet. Packaged items are stacked together on a pallet and properly secured to facilitate mechanical loading, unloading, and transportation. Based on this definition, a unit load is a complete stack of goods on a pallet, without the pallet.

[0003] At present, unitized logistics technology based on palletized containers has been widely used in logistics operations at home and abroad. For example, in factory automated production and logistics warehousing systems, unitized logistics automation operations based on standard pallets have covered the entire internal logistics process.

[0004] However, in the loading and unloading and transportation stages of product distribution, particularly in long-distance and export transport, and in logistics and transportation operations that require high vehicle and container load rates, low freight costs, low energy consumption, and low pollution, the use of unitized logistics technology, using palletized units for loading and unloading operations, will lead to problems such as reduced vehicle load rates, increased pallet costs, or difficulty in recycling. This will lead to significant increases in transportation and pallet costs, as well as additional energy consumption and pollution. Therefore, to date, in order to save logistics costs, the vast majority of companies have abruptly abandoned palletized unitization operations when shipping products or goods, and instead resort to manual loading and unloading of goods piece by piece, transporting goods without pallets.

[0005] However, there are also many disadvantages in manually loading goods one by one or using conveyors with manual cooperation to load goods one by one, including: high labor consumption, low efficiency of the logistics system, poor operation quality, high rate of damage to goods or packaging, affecting the image of products and enterprises, and being unable to adapt to the business needs of continuous growth in production and sales.

[0006] Even though pallets are widely used in logistics operations today, the vast majority of ordinary products or goods still use manual loading and unloading operations. This is a helpless choice for companies because manual loading and unloading operations of individual pieces at the expense of work efficiency and quality can greatly increase the actual load rate of vehicles or containers, save pallet costs or pallet recycling problems, and save companies a lot of logistics costs.

[0007] Today, the widespread pain points and defects of using palletized transportation, or the bottlenecks and disadvantages of using non-palletized transportation and manual loading and unloading of individual pieces, have long been and will continue to be a problem for the logistics industry, affecting and restricting the reduction of energy consumption and increase of efficiency in social logistics activities. Summary of the Invention

[0008] The technical problem to be solved by the present invention is to provide a unit cargo unitized logistics technology that can unitize unit cargo without pallets and collect unitized loading and unloading and transportation operation modes, that is, according to the loading design, the unit cargo without pallets can be collected into a whole vehicle stack to realize the unit cargo collection and loading operation of the whole vehicle. The unit cargo return and collection into a whole vehicle stack operation system and method can avoid the unit cargo stacks from colliding and interfering with each other during the transportation and collection process.

[0009] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0010] A method for stacking unit cargo into a complete vehicle includes the following steps:

[0011] P1. Place the first longitudinal unit load and the first transverse unit load on the left and right collection conveyor lines of the return platform, respectively, with a gap between them, to form the first row of unit loads to be collected;

[0012] P2. Place the second transverse unit load and the second longitudinal unit load on the left and right collection conveyor lines of the return platform, respectively, to form a second row of unit loads to be collected; a gap is provided between the second row of unit loads to be collected and the first row of unit loads to be collected;

[0013] P3. Move the left column collection conveyor line of the circular platform and the right column collection conveyor line of the circular platform closer together, so that the same row of unit cargo stacks in the left and right columns are close together, and then convey the second row of unit cargo to be collected forward at the same time, so that the second row of unit cargo to be collected is close to the first row of unit cargo to be collected, forming a circular collection cargo stack unit with aligned outer sides, and aligning the circular collection cargo stack unit. After aligning, the circular collection cargo stack unit is conveyed as a whole to assemble the whole cargo stack of the whole vehicle.

[0014] P4. Repeat steps P1-P3 until the circular cargo stack units are assembled into a complete cargo stack for the entire vehicle according to the loading design.

[0015] A unit cargo return collection system for a whole vehicle cargo stacking operation system, comprising a unit cargo transfer and conveying vehicle, a return conveying and collecting platform, a collection cargo stack unit sorting device, and a whole vehicle cargo stacking collection loading platform; wherein the unit cargo transfer and conveying vehicle is arranged between a de-palletizing station and the return conveying and collecting platform, and is used to dynamically connect the de-palletizing station and the input end of the return conveying and collecting platform; the collection cargo stack unit sorting device is installed on the return conveying and collecting platform, and is used to level and sort multiple columns of unit cargo on the return conveying and collecting platform; the output end of the return conveying and collecting platform is dynamically connected with the input end of the whole vehicle cargo stacking collection loading platform.

[0016] Furthermore, the unit cargo transfer and conveying vehicle includes a transfer vehicle body and a flat-top chain conveying device, the transfer vehicle body can move back and forth between the pallet removal station and the input end of the circular conveying and collecting platform, the flat-top chain conveying device is 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 conveying direction of the circular conveying and collecting platform.

[0017] Furthermore, it also includes a transfer vehicle slide rail, the pallet removal station and the circular conveying collection platform are respectively fixedly installed on both sides of the length direction of the transfer vehicle slide rail, and the length direction of the transfer vehicle slide rail is perpendicular to the conveying direction of the flat top chain conveyor device.

[0018] Furthermore, there are multiple transfer vehicle bodies, and the multiple transfer vehicle bodies can move back and forth between the corresponding pallet removal stations and the input end of the circular conveying and collecting platform.

[0019] Furthermore, the circular conveying and collecting platform includes a left-column collecting conveying line and a right-column collecting conveying line of the circular platform, which are separated from each other and respectively convey two columns of unit cargo. After the left-column collecting conveying line of the circular platform and the right-column collecting conveying line of the circular platform are merged together, they can jointly convey the two columns of unit cargo forward.

[0020] Furthermore, the circular conveying collection platform includes a circular platform integral frame, two longitudinal short belt conveyor lines, and two longitudinal belt conveyor lines; wherein the longitudinal short belt conveyor line and the longitudinal belt conveyor line can be installed on the circular platform integral frame in a transversely slidable manner; the two longitudinal short belt conveyor lines and the two longitudinal belt conveyor lines are respectively arranged diagonally.

[0021] Furthermore, the integral frame of the circular platform includes a conveyor line slide rail extending in the transverse direction; the longitudinal short belt conveyor line includes a longitudinal short belt conveyor line frame, a longitudinal short conveyor belt, a conveyor line slider and a longitudinal short transverse moving screw rod and a dynamic transmission device, wherein the longitudinal short conveyor belt is laid on the upper surface of the longitudinal short belt conveyor line frame, and the conveyor line slider is fixedly installed on the longitudinal short belt conveyor line frame and matches the conveyor line slide rail; the longitudinal short transverse moving screw rod and the dynamic transmission device can drive the longitudinal short belt conveyor line frame to slide along the conveyor line slide rail through the conveyor line slider.

[0022] Furthermore, the longitudinal short belt conveyor line also includes a longitudinal short conveyor line dynamic transmission device, the output end of the longitudinal short conveyor line dynamic transmission device is connected to the longitudinal short conveyor belt, driving the longitudinal short conveyor belt to convey unit cargo along the longitudinal direction.

[0023] Furthermore, the integral frame of the circular platform includes a conveyor line slide rail extending in the transverse direction, and the longitudinal belt conveyor line includes a longitudinal belt conveyor line frame, a longitudinal conveyor belt, a conveyor line slider and a longitudinal and transverse moving screw rod and a dynamic transmission device, wherein the longitudinal conveyor belt is laid on the upper surface of the longitudinal belt conveyor line frame, and the conveyor line slider is fixedly installed on the longitudinal belt conveyor line frame and matches the conveyor line slide rail; the longitudinal and transverse moving screw rod and the dynamic transmission device can drive the longitudinal belt conveyor line frame to slide along the conveyor line slide rail through the conveyor line slider.

[0024] Furthermore, the longitudinal belt conveyor line also includes a longitudinal conveyor line dynamic transmission device, the output end of the longitudinal conveyor line dynamic transmission device is connected to the longitudinal conveyor belt, driving the longitudinal conveyor belt to transport unit cargo along the longitudinal direction.

[0025] Furthermore, the circular conveying collection platform also includes a central lifting roller line, which can be lifted and lowered between the longitudinal short belt conveyor line and the longitudinal belt conveyor line, corresponding to the two longitudinal belt conveyor lines in the transverse direction, and staggered with the two longitudinal short belt conveyor lines.

[0026] Furthermore, the central lifting roller line is configured so that when it is lifted to a certain lift, its upper plane is on the same plane as the upper planes of the longitudinal short belt conveyor line and the longitudinal belt conveyor line; when the central lifting roller line is lifted to another lift, its upper plane is lower than the lower plane of the longitudinal short belt conveyor line and the longitudinal belt conveyor line.

[0027] Furthermore, the central lifting roller line includes a conveying roller line, a vertical push rod, and a lifting cylinder, wherein the conveying roller line can convey unit cargo longitudinally, and is fixedly installed on the vertical push rod, and the vertical push rod is fixedly connected to the telescopic end of the lifting cylinder, and the fixed end of the lifting cylinder is fixedly set on the integral frame of the circular platform.

[0028] Furthermore, the central lifting roller line also includes a vertical slider and a vertical guide rail that cooperate with each other, wherein the vertical slider is fixedly arranged on the vertical push rod, and the vertical guide rail is fixedly arranged on the integral frame of the circular platform.

[0029] Furthermore, the said collecting cargo stack unit sorting device comprises two sorting clamping plates, which are arranged vertically and symmetrically opposite to each other along the longitudinal center line of the said circular conveying and collecting platform and can move relative to each other.

[0030] Furthermore, the collection cargo stack unit sorting device also includes the device gate-shaped bracket and the clamping cylinder, wherein the device gate-shaped bracket is arranged across both sides and above the circular conveying collection platform, and the sorting clamping plate and the clamping cylinder are both installed on the device gate-shaped bracket, and the sorting clamping plate is fixedly connected to the output end of the clamping cylinder.

[0031] Furthermore, the arranging clamping plate includes a clamping plate, a clamping plate rear frame and an intermediate shear frame. The outer side surface of the clamping plate is fixedly connected to the clamping plate rear frame, and the clamping plate rear frame is connected to the intermediate shear frame.

[0032] Furthermore, the two shear frame ends at the upper part of the intermediate shear frame are respectively hinged to the upper part of the device gate bracket and the clamping plate rear frame, and the two shear frame ends at the lower part of the intermediate shear frame are respectively slidably arranged in the sliding grooves of the device gate bracket and the clamping plate rear frame.

[0033] Furthermore, the whole vehicle cargo stack collection loading platform includes a collection conveying movement and transposition device and a platform lifting chassis. The collection conveying movement and transposition device is arranged on the platform lifting chassis, and its input end is dynamically connected with the output end of the circular conveying collection platform, and can perform longitudinal reciprocating movement on the platform lifting chassis and on the floor of the car body.

[0034] Furthermore, the collective conveying, moving and transposing device includes a whole vehicle cargo stack collective conveying line and an output transposing and loading front tongue, and the output transposing and loading front tongue is arranged at the front end of the whole vehicle cargo stack collective conveying line.

[0035] Furthermore, the whole vehicle cargo stack collection conveyor line includes a whole vehicle conveyor line structure, a multi-row flat top chain conveyor line and a flat top chain conveyor line dynamic transmission device. The multi-row flat top chain conveyor line is arranged on the whole vehicle conveyor line structure and is connected to the output end of the flat top chain conveyor line dynamic transmission device.

[0036] Furthermore, the upper plane of the output transposition loading front tongue can be switched between a horizontal plane and a forward inclined plane, and a plurality of free rollers are longitudinally arranged on the upper part of the output transposition loading front tongue.

[0037] Furthermore, the platform lifting chassis includes a base frame structure, lifting legs, and a gantry pushing and blocking device. The gantry pushing and blocking device is vertically fixed to the tail end of the base frame structure, and multiple lifting legs are liftably installed at the lower part of the base frame structure.

[0038] A method for using the above-mentioned unit cargo stacking system to form a complete vehicle cargo stack comprises the following steps:

[0039] S1. At the start of the operation, the two unit cargo transfer and conveying vehicles are respectively connected to the output ends of the pallet removal stations of the dual units, and the first longitudinal unit cargo and the first transverse unit cargo that have been depalletized are respectively conveyed to the unit cargo transfer and conveying vehicles;

[0040] S2. Move the diagonally distributed short longitudinal belt conveyor lines and / or the longitudinal belt conveyor lines of the circular conveyor collection platform outwards, respectively, so that the circular conveyor collection platform forms two independent left and right columns of the circular conveyor collection platform with a gap therebetween.

[0041] S3, move the unit cargo transfer and transport vehicle carrying the first longitudinal unit cargo to the input end of the left column collection conveyor line of the return platform, so that the first longitudinal unit cargo is transported to the left column collection conveyor line of the return platform; move another unit cargo transfer and transport vehicle carrying the first transverse unit cargo to the input end of the right column collection conveyor line of the return platform, so that the first transverse unit cargo is transported to the right column collection conveyor line of the return platform; make the first longitudinal unit cargo and the first transverse unit cargo become the first row of unit cargo to be collected on the return conveying and collecting platform;

[0042] S4, make the two unit cargo transfer and conveying vehicles return empty and move to the output ends of their respective corresponding unit cargo de-palletizing stations, and repeat the above-mentioned operation process of S1, that is, respectively transport the second longitudinal unit cargo and the second transverse unit cargo that have been de-palletized to their respective corresponding unit cargo transfer and conveying vehicles; the two unit cargo transfer and conveying vehicles are staggered and moved to the input ends of the left column collection conveyor line and the right column collection conveyor line of the return platform respectively, even if the unit cargo transfer and conveying vehicle carrying the second transverse unit cargo moves to the input end of the left column collection conveyor line of the return platform, and after transporting the second transverse unit cargo to the left column collection conveyor line of the return platform, it returns empty to avoid, so that the unit cargo transfer and conveying vehicle carrying the second longitudinal unit cargo moves to the input end of the right column collection conveyor line of the return platform, and transports the second longitudinal unit cargo to the right column collection conveyor line of the return platform, forming a second row of unit cargo to be collected on the left column collection conveyor line and the right column collection conveyor line of the return platform, and keeping a certain gap between the second row of unit cargo to be collected and the first row;

[0043] S5, bringing the left row collection conveyor line of the circular platform and the right row collection conveyor line of the circular platform closer together, so that the same row of unit cargo stacks of the left and right rows are close together, and then simultaneously conveying the second row of unit cargo to be collected forward so that the second row of unit cargo to be collected is close to the first row of unit cargo to be collected, thus forming a circular collection cargo stack unit on the circular conveyor collection platform;

[0044] S6, operating the collecting stack unit arranging device to arrange the circular collecting stack units formed on the circular conveying and collecting platform, so that the lateral gaps between the pieces of goods in the circular collecting stack units are eliminated and the two outer side surfaces are flush;

[0045] S7, after the circular aggregate cargo stack units are sorted, the circular conveying and collecting platform is started to transport the circular aggregate cargo stack units as a whole to the vehicle integral cargo stack collecting loading platform for vehicle integral cargo stack collection.

[0046] Furthermore, the method further comprises the following steps:

[0047] S8. Repeat the operations of P1-S7 until the whole vehicle cargo stack is assembled on the whole vehicle cargo stack assembly loading platform according to the loading design, so that the whole vehicle cargo stack assembly loading platform can enter the whole vehicle cargo stack assembly loading process.

[0048] Beneficial effects of the present invention:

[0049] The system and method for assembling unit cargo into a complete vehicle stack provided by the present invention can realize the transportation and assembly of depalletized unit cargo into a stack unit according to the loading design, and then further assemble the stack units into a complete vehicle stack of unit cargo, thereby realizing the complete loading operation of the complete vehicle. Compared with the existing technology, the technical solution of the present invention can achieve the unitization and unitization of unit cargo loading and unloading operations, and can realize the automation and intelligence of the unitization operation mode, ultimately achieving the beneficial effects of high efficiency, low consumption, and green emission reduction in logistics operations.

[0050] In addition, by implementing the unit cargo return-type assembly into a whole vehicle cargo stacking operation system and method of this embodiment, four unit cargo stacks with rectangular cross-sections can be assembled into a return-type aggregate cargo stack unit with a square cross-section, and during the assembly and transportation process, the collision and interference between adjacent unit cargo stacks can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 Schematic top view of a preferred embodiment of the unit cargo return assembly system of the present invention for a whole vehicle cargo stacking operation;

[0052] Figure 2 This is a schematic diagram of the three-dimensional structure of a unit cargo transfer and delivery vehicle in a preferred embodiment of the present invention;

[0053] Figure 2.1 A rear view of a unit cargo transfer and delivery vehicle according to a preferred embodiment of the present invention;

[0054] Figure 3 This is a schematic diagram of the three-dimensional structure of the circular conveying and collecting platform of the present invention in a preferred embodiment;

[0055] Figure 3.1 This is a schematic diagram of the left and right column conveyor lines that can be formed by the circular conveyor collection platform of the present invention during operation;

[0056] Figure 3.2 This is a schematic diagram of the three-dimensional structure of the circular conveying and collecting platform of the present invention after hiding a longitudinal belt conveyor line;

[0057] Figure 3.3 It is a side elevational schematic diagram of a preferred embodiment of the longitudinal short belt conveyor line of the present invention;

[0058] Figure 3.4 It is a side elevational schematic diagram of a preferred embodiment of the longitudinal belt conveyor line of the present invention;

[0059] Figure 3.5 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the central lifting roller line of the present invention;

[0060] Figure 4 Schematic diagram of the three-dimensional structure of the device for arranging the stacking units of the present invention in a preferred embodiment;

[0061] Figure 5 It is a schematic diagram of the three-dimensional structure of the integrated cargo stack assembly loading platform for a whole vehicle according to a preferred embodiment of the present invention. DETAILED DESCRIPTION

[0062] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0063] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may 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 may be directly connected to the other element or indirectly connected to the other element.

[0064] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0066] Example 1

[0067] The unit load has a planar dimension of 1200×1000, meaning its cross-section is rectangular, including both length and width. In this embodiment, a unit load transported along the length of the unit load is referred to as a longitudinal unit load, and a unit load transported along the width of the unit load is referred to as a transverse unit load.

[0068] A method for stacking unit cargo into a complete vehicle includes the following steps:

[0069] P1. Place the first longitudinal unit cargo and the first transverse unit cargo on the left row collection conveyor line 020 of the circular platform and the right row collection conveyor line 021 of the circular platform respectively, and a gap is provided between the left row collection conveyor line 020 of the circular platform and the right row collection conveyor line 021 of the circular platform to form the first row of unit cargo to be collected.

[0070] Since there is a gap between the first longitudinal unit cargo and the first transverse unit cargo, the two columns of unit cargo stacks will not collide or interfere with each other during the independent conveying and collecting process of the left column collection conveyor line 020 of the circular platform and the right column collection conveyor line 021 of the circular platform.

[0071] P2. Place the second transverse unit cargo and the second longitudinal unit cargo on the left row collection conveyor line 020 and the right row collection conveyor line 021 of the return platform respectively to form a second row of unit cargo to be aggregated; a gap is set between the second row of unit cargo to be aggregated and the first row of unit cargo to be aggregated.

[0072] Since there is a gap between the second longitudinal unit cargo and the second transverse unit cargo, the two columns of unit cargo stacks will not collide or interfere with each other during the independent conveying and collection process of the left column collection conveyor line 020 and the right column collection conveyor line 021 of the circular platform.

[0073] At this time, the first longitudinal unit cargo and the second transverse unit cargo are placed on the left row collection conveyor line 020 of the circular platform, and the first transverse unit cargo and the second longitudinal unit cargo are placed on the right row collection conveyor line 021 of the circular platform. After step P3, the unit cargo with a rectangular cross-section can form a circular collection cargo stack unit with a square cross-section.

[0074] P3. Move the left-row collection conveyor line 020 and the right-row collection conveyor line 021 of the circular platform closer together, so that the same row of unit cargoes in the left and right rows are close together. Then, the second row of the unit cargoes that have been brought together and are to be collected are simultaneously conveyed forward, so that the second row of the unit cargoes that have been brought together and are to be collected and are close together with the first row of the unit cargoes that have been brought together, forming a circular collection cargo stack unit with aligned outer sides. The circular collection cargo stack unit is leveled and arranged, and the leveled and arranged circular collection cargo stack unit is conveyed as a whole to be assembled as a whole cargo stack of the entire vehicle.

[0075] P4. Repeat steps P1-P3 until the circular cargo stacking unit completes the entire cargo stacking of the vehicle according to the loading design.

[0076] By implementing the method of unit cargo return assembly into a whole vehicle cargo stacking operation method of this embodiment, four unit cargo stacks with rectangular cross-sections can be assembled into a return-shaped assembled cargo stack unit with a square cross-section, and during the assembly and transportation process, the collision and interference between adjacent unit cargo stacks can be avoided.

[0077] Example 2

[0078] like Figure 1 As shown, the unit cargo return collection system for a complete vehicle cargo stacking operation includes a unit cargo transfer and conveying vehicle 1, a return conveying and collecting platform 2, a unit collection device for the collection stack 3, and a complete vehicle cargo stacking collection loading platform 4. The unit cargo transfer and conveying vehicle 1 is generally slender and linear, and is located between the depalletizing station 01 and the return conveying and collecting platform 2. It is used to dynamically connect the depalletizing station 01 with the input end of the return conveying and collecting platform 2. The unit collection stack unit collection devices 3 are located on both sides of the return conveying and collecting platform 2. The output end of the return conveying and collecting platform 2 is connected to the complete vehicle cargo stacking collection loading platform 4. The following is a further detailed introduction to each of the above components.

[0079] like Figure 2 and Figure 2.1 As shown, the unit cargo transfer vehicle 1 comprises a transfer vehicle body 10, a flat top chain conveyor device 11, a transfer motion transmission device 12 and a transfer vehicle slide rail 13. The plane size of the unit cargo transfer vehicle 1 is related to the plane size of the unit cargo pallet.

[0080] The transfer vehicle rails 13 are elongated and linear, with pallet removal stations 01 located at each end, away from the circular conveyor assembly platform 2. In this embodiment, there are two transfer vehicle bodies 10, each of which reciprocates between a corresponding pallet removal station 01 and the input end of the circular conveyor assembly platform 2.

[0081] The transfer vehicle body 10 is the main structure of the unit load transfer vehicle 1. The flat-top chain conveyor 11 and the transfer transmission 12 are both mounted on the transfer vehicle body 10. The transfer vehicle body 10 is slidably mounted on the transfer vehicle rails 13 via a lower movable slider 120. Driven by the transfer transmission 12, the transfer vehicle body 10 can reciprocate along the length of the transfer vehicle rails 13.

[0082] like Figure 2.1 As shown, the flat-top chain conveyor device 11 includes a flat-top conveyor chain 110, a conveyor assembly 111, and a conveying power 112. The flat-top conveyor chains 110 are mounted on the upper portion of the transfer vehicle body 10, and there are multiple of them. The conveying power 112 is mounted on the lower portion of the transfer vehicle body 10. The conveying power 112 drives the flat-top conveyor chains 110 through the conveyor assembly 111 to perform bidirectional conveying in a direction perpendicular to the length of the transfer vehicle slide rail 13.

[0083] The transfer transmission device 12 includes a moving slider 120, a moving power 121 and a moving kit 122. The moving slider 120 is arranged at the lower part of the transfer vehicle body 10 and is slidably connected to the transfer vehicle slide rail 13. Specifically, the moving kit 122 includes a driving gear 1221 and a moving rack 1222, wherein the driving gear 1221 is fixedly connected to the output shaft of the moving power 121, the moving rack 1222 is fixedly connected to the transfer vehicle slide rail 13, and the driving gear 1221 and the moving rack 1222 are meshed with each other. The mobile power 121 drives the driving gear 1221 of the moving kit 122 to mesh with the moving rack 1222 provided on the transfer vehicle slide rail 13, so that the transfer vehicle body 10 moves back and forth on the transfer vehicle slide rail 13.

[0084] The transfer vehicle slide 13 comprises a slide frame 131 and two movable slides 132. The two movable slides 132 are arranged parallel to each other on either side of the slide frame 131. The movable rack 1222 of the transfer motion transmission device 12 is located below one of the movable slides 132. The movement direction of the unit cargo transfer vehicle 1 is perpendicular to the conveying direction of the flat-top conveyor chain 110.

[0085] The unit load transfer vehicle 1 operates by dynamically connecting the output of the depalletizing station 01 and the input of the circular conveying and collecting platform 2 via the transfer vehicle's slide rails 13. The unit load transfer vehicle 1 reciprocates on the transfer vehicle's slide rails 13, transferring depalletized unit loads from the output of the depalletizing station 01 to the unit load transfer vehicle 1. The unit loads are then transferred and transported to the circular conveying and collecting platform 2, where they are assembled into a stacked unit.

[0086] Figure 3 、 Figure 3.1-Figure 3.5 Schematic diagram of an embodiment of a return conveying and collecting platform 2. Figure 3 、 Figure 3.1 、 Figure 3.2 As can be seen, in this embodiment, the circular conveying and collecting platform 2 is a collection platform equipped with two rows and two columns of four independent unit cargo stack conveyor lines that are capable of longitudinal conveying and transverse sliding movement. In this embodiment, the longitudinal direction refers to the direction perpendicular to the transfer vehicle slide rails 13, and the transverse direction refers to the direction parallel to the transfer vehicle slide rails 13.

[0087] As shown in the figure, the return conveying and collecting platform 2 can be arranged as follows by sliding horizontally according to the needs of the operation. Figure 3 as well as Figure 3.1 The job status of Figure 3.1The diagram shows the circular conveyor collection platform 2 during operation, forming the left column collection conveyor line 020 and the right column collection conveyor line 021. The left column collection conveyor line 020 and the right column collection conveyor line 021 of the circular platform are related to the planar dimensions of the unit cargo stack.

[0088] Specifically, if Figure 3 As shown, the circular conveyor assembly platform 2 comprises a circular platform frame 210, two short longitudinal belt conveyor lines 211, two longitudinal belt conveyor lines 212, and a central lifting roller line 213. The short longitudinal belt conveyor lines 211 and the longitudinal belt conveyor lines 212 are slidably mounted on the circular platform frame 210. The two short longitudinal belt conveyor lines 211 are arranged diagonally, and the two longitudinal belt conveyor lines 212 are also arranged diagonally. The central lifting roller line 213 is arranged to be raised and lowered between the short longitudinal belt conveyor lines 211 and the longitudinal belt conveyor lines 212.

[0089] like Figure 3.2 As shown, the circular platform frame 210 comprises vertical legs, horizontal rods (not shown), and conveyor rails 2101. The vertical legs and horizontal rods are assembled into a stable unit, with the conveyor rails 2101 positioned horizontally on the horizontal rods. The short longitudinal belt conveyor 211 and the square longitudinal belt conveyor 212 slide laterally on the conveyor rails 2101.

[0090] Depend on Figure 3 、 Figure 3.2 、 Figure 3.3 It can be seen that the short longitudinal belt conveyor line 211 includes a short longitudinal belt conveyor line frame 2110, a short longitudinal conveyor belt 2111, a short longitudinal conveyor line dynamic transmission device 2112, a short longitudinal transverse movable lead screw and dynamic transmission device 2113, a short longitudinal lead screw nut and seat 2114, and a conveyor line slider 2115. The short longitudinal conveyor belt 2111, the short longitudinal conveyor line dynamic transmission device 2112, the short longitudinal lead screw nut and seat 2114, and the conveyor line slider 2115 are all arranged on the short longitudinal belt conveyor line frame 2110.

[0091] The output end of the longitudinal short conveyor line dynamic transmission device 2112 is connected to the longitudinal short conveyor belt 2111, driving the longitudinal short conveyor belt 2111 to convey the unit cargo along the longitudinal direction.

[0092] The short and long lateral moving screws and their transmission mechanism 2113, along with the short and long lateral moving screw nuts and their seats 2114, form a kinematic pair that enables the short and long lateral conveyor belt 211 to move laterally. Specifically, the short and long lateral moving screws and their transmission mechanism 2113 are fixedly mounted on the integral frame 210 of the circular platform, while the short and long lateral moving screw nuts and their seats 2114 are fixedly connected to the short and long lateral conveyor belt frame 2110.

[0093] The longitudinal short conveyor line slider seat 2116 is installed at the lower part of the longitudinal short belt conveyor line frame 2110, and the conveyor line slider 2115 is fixedly connected to the longitudinal short conveyor line slider seat 2116, and the conveyor line slider 2115 matches the conveyor line slide rail 2101.

[0094] During operation, the conveyor line slider 2115 cooperates with the conveyor line slide rail 2101, and the push-pull effect generated by the longitudinal and transverse moving screw rod and the dynamic transmission device 2113 and the longitudinal and transverse screw rod nut and the seat 2114 drives the longitudinal and short belt conveyor line 211 to slide horizontally on the circular platform integral frame 210.

[0095] Depend on Figure 3 、 Figure 3.2 、 Figure 3.4 As can be seen, the longitudinal belt conveyor line 212 includes a longitudinal belt conveyor line frame 2120, a longitudinal conveyor belt 2121, a longitudinal conveyor line drive device 2122, a longitudinal transverse moving screw and drive device (not labeled in the figure), a longitudinal screw nut and seat 2124, and a conveyor line slider 2115. The longitudinal conveyor belt 2121, the longitudinal conveyor line drive device 2122, the longitudinal screw nut and seat 2124, and the conveyor line slider 2115 are all mounted on the longitudinal belt conveyor line frame 2120.

[0096] The output end of the longitudinal conveyor line dynamic transmission device 2122 is connected to the longitudinal conveyor belt 2121, driving the longitudinal conveyor belt 2121 to convey the unit cargo along the longitudinal direction.

[0097] The longitudinal and transverse moving screws and the dynamic transmission device, along with the longitudinal screw nut and the seat 2124, form a kinematic pair that enables the longitudinal belt conveyor line 212 to move laterally. Specifically, the longitudinal and transverse moving screws and the dynamic transmission device are fixedly mounted on the integral frame 210 of the circular platform, while the longitudinal screw nut and the seat 2124 are fixedly connected to the longitudinal belt conveyor line frame 2120.

[0098] The longitudinal conveyor line slider seat 2126 is installed at the lower part of the longitudinal belt conveyor line frame 2120, and the conveyor line slider 2115 is fixedly connected to the longitudinal conveyor line slider seat 2126, and the conveyor line slider 2115 matches the conveyor line slide rail 2101.

[0099] During operation, the longitudinal belt conveyor line 212 is driven to slide laterally on the circular platform integral frame 210 through the cooperation between the conveyor line slider 2115 and the conveyor line slide rail 2101, and through the push-pull effect generated by the longitudinal and transverse moving screw rods and the dynamic transmission device and the longitudinal screw rod nut and seat 2124.

[0100] Depend on Figure 3 、 Figure 3.2 、 Figure 3.5As can be seen, the central lifting roller line 213 is located at the center of the circular conveyor assembly platform 2. It corresponds horizontally to the two longitudinal belt conveyor lines 212 and is staggered with the two longitudinal short belt conveyor lines 211. The central lifting roller line 213 is used to coordinate with the longitudinal short belt conveyor lines 211 and the longitudinal belt conveyor lines 212 to convey unit loads longitudinally. Specifically, the central lifting roller line 213 includes a conveyor roller line 2130, a vertical push rod 2131, a lifting cylinder 2132, a vertical slider 2133, and a vertical guide rail 2134.

[0101] The conveyor roller line 2130, which transports unit loads longitudinally, is fixedly mounted on a vertical push rod 2131. This push rod 2131 is fixedly connected to the telescopic end of a lift cylinder 2132, the fixed end of which is fixedly mounted in the lower center of the circular platform frame 210. A vertical slider 2133 is fixed to one side of the vertical push rod 2131. A vertical guide rail 2134, secured to a vertical support rod in the center of the circular platform frame 210, cooperates with the slider 2133.

[0102] During operation, the conveyor roller line 2130, driven by the lifting cylinder 2132 and coordinated with the vertical slider 2133 and vertical guide rail 2134, moves up and down along the vertical support rods of the integral frame 210 of the circular platform. The stroke of the lifting cylinder 2132 is greater than the vertical height of the short longitudinal belt conveyor line 211 and the vertical belt conveyor line 212. That is, when the lifting cylinder 2132 is at its maximum lift, the upper plane of the conveyor roller line 2130 is flush with the upper planes of the short longitudinal belt conveyor line 211 and the vertical belt conveyor line 212. When the lifting cylinder 2132 is at its zero lift, the upper plane of the conveyor roller line 2130 is lower than the lower planes of the short longitudinal belt conveyor line 211 and the vertical belt conveyor line 212.

[0103] Depend on Figure 3.1 See also Figure 3 During operation, the short longitudinal belt conveyor lines 211 arranged diagonally to each other on the circular conveying and collecting platform 2 are pushed outward on both sides by the short longitudinal transverse moving screw rods and dynamic transmission devices 2113 and the short longitudinal screw rod nuts and seats 2114, and the longitudinal belt conveyor lines 212 arranged diagonally to each other are pushed outward on both sides by the longitudinal transverse moving screw rods and dynamic transmission devices and the longitudinal screw rod nuts and seats 2124. The circular conveying and collecting platform 2 forms two left and right columns of left and right columns of collection conveyor lines 020 and right columns of collection conveyor lines 021, so as to independently convey and collect the two stacks of staggered unit cargo input from the front and rear of this column. Since there is a gap between the left column collection conveyor line 020 and the right column collection conveyor line 021, the two columns of unit cargo stacks will not collide or interfere with each other during the independent conveying and collecting process.

[0104] The operation process of the return conveying and collecting platform 2 is that the return conveying and collecting platform 2 is first controlled to form the following Figure 3.1 The left column collection conveyor line 020 and the right column collection conveyor line 021 with gaps on the left and right columns can simultaneously or independently receive the first row of unit cargo to be collected, which is a stack of the left column in the vertical direction and a stack of the right column in the horizontal direction, delivered by two unit cargo transfer and conveying vehicles 1; the second row of unit cargo to be collected can be independently received by the two unit cargo transfer and conveying vehicles 1, which is a stack of the second row of unit cargo to be collected and is crisscrossed with the first row of unit cargo to be collected, while leaving a gap between the two rows of unit cargo to be collected; and then the left column collection conveyor line 020 and the right column collection conveyor line 021 can be independently received by the two unit cargo transfer and conveying vehicles 1. After the longitudinal short belt conveyor line 211 and the longitudinal belt conveyor line 212 on the right column collection conveyor line 021 move laterally toward each other, and then the second row of unit goods to be collected is conveyed longitudinally forward to abut against the first row of unit goods to be collected, the gap left between the two columns and the two rows of unit goods to be collected can be eliminated, so that the unit goods to be collected are assembled on the circular conveying and collecting platform 2 into a whole of two rows and two columns staggered and abutting against each other, with the two outer sides aligned and a vertical square hole formed in the center, with a total of 4 stacks of unit goods (in the shape of a circle when viewed from above). The circular collection stack units are sorted on the circular conveying and collecting platform 2 by the circular collection stack unit sorting device 3, and then transported to the whole vehicle whole cargo stack collection loading platform 4. According to the loading design, they are sequentially assembled into circular collection stack units and whole vehicle whole cargo stacks to meet the technical state of entering the whole vehicle whole loading of the collection unit goods.

[0105] In addition, before the circular collection stack unit is transported forward, the center lifting roller line 213 is first raised to the highest position to fill the central space of the circular conveying and collecting platform 2, so that the circular collection stack unit can smoothly pass through the central space of the circular conveying and collecting platform 2 to be transported to the whole vehicle stack collection loading platform 4 in the front.

[0106] like Figure 4 As shown, the stacking unit arranging device 3 includes a device gate-shaped bracket 30, an arranging clamping plate 31 and a clamping cylinder 32, and the arranging clamping plate 31 and the clamping cylinder 32 are both mounted on the device gate-shaped bracket 30. It can be understood that in this embodiment, the cylinder can also be replaced by a power device such as a motor.

[0107] The device's gate-shaped support 30 spans both sides and above the circular conveyor and collection platform 2 and includes gate posts 301, transverse tie rods 302, and longitudinal tie rods 303. Two or more sets of gate posts 301 are positioned along the outer sides of the circular conveyor and collection platform 2, with their lower ends fixed to the ground. The two sets of gate posts 301 are connected by transverse tie rods 302 and longitudinal tie rods 303.

[0108] The arranging clamping plates 31 are arranged vertically and symmetrically on the two inner sides of the device door-shaped bracket 30 along the longitudinal center line of the circular conveying and collecting platform 2. After installation, the inner opposite distance between the arranging clamping plates 31 on both sides is greater than the width of the overall cargo stack of the unit cargo collection stack.

[0109] Specifically, the finishing clamp 31 includes a clamp 311, a clamp panel 312, a clamp rear frame 313, and an intermediate shear frame 314. The inner side of the clamp 311 is covered with the clamp panel 312, which is preferably made of an elastic material. The outer side of the clamp 311 is fixedly connected to the clamp rear frame 313, which is in turn connected to the intermediate shear frame 314. The upper two shear frame ends of the intermediate shear frame 314 are hinged to the upper portion of the door post 301 and the upper portion of the clamp rear frame 313, respectively. The lower two shear frame ends of the intermediate shear frame 314 are slidably disposed in slide slots 315 on the lower portion of the door post 301 and the lower portion of the clamp rear frame 313, respectively.

[0110] The clamping cylinder 32 is installed between the intermediate shear frame 314 and the device gate-shaped bracket 30 , the fixed end of the clamping cylinder 32 is fixedly set on the device gate-shaped bracket 30 , and the output end of the clamping cylinder 32 is connected to the intermediate shear frame 314 .

[0111] The main function of the collective cargo stack unit sorting device 3 is to use the collective cargo stack unit sorting device 3 to clamp and sort the two side surfaces of the collective cargo stack unit after the unit cargo is assembled into the collective cargo stack unit on the collective cargo stack unit circular conveying and gathering platform 2, so as to eliminate the gaps between the piece cargo and the piece cargo protruding on both sides of the overall cargo stack of the collective cargo stack unit, so as to make the two sides of the overall cargo stack of the collective cargo stack unit flat and consistent, so as to further assemble the entire vehicle cargo stack of the collective cargo stack unit on the entire vehicle overall cargo stack gathering loading platform 4 to meet the requirements of entering the entire vehicle overall loading operation state.

[0112] Depend on Figure 5 As can be seen, the whole-cargo stack assembly loading platform 4 includes a collection, transport, and transposition device 40 and a platform elevating chassis 41. The collection, transport, and transposition device 40 is mounted on the platform elevating chassis 41. Its input end is dynamically connected to the output end of the circular transport assembly platform 2 and can move longitudinally back and forth on the platform elevating chassis 41 and onto the vehicle floor. The top surface dimensions of the collection, transport, and transposition device 40 are related to the bottom surface dimensions of the whole-cargo stack of the unit cargo.

[0113] exist Figure 5In the figure, the collective conveying and moving transposition device 40 is generally "I"-shaped and includes a whole-vehicle cargo stack collective conveyor line 401, an output transposition loading front tongue 402, a movable roller (not labeled in the figure), and a movable dynamic transmission device (not labeled in the figure). The whole-vehicle cargo stack collective conveyor line 401 is generally slender and linear. The output transposition loading front tongue 402 is arranged at the front end of the whole-vehicle cargo stack collective conveyor line 401 along the length of the whole-vehicle cargo stack collective conveyor line 401. The movable roller is arranged at the bottom of the collective conveying and moving transposition device 40. The movable dynamic transmission device is a dynamic transmission device that enables the collective conveying and moving transposition device 40 to reciprocate on the platform elevating chassis 41. The movable dynamic transmission device is arranged at the bottom of the platform elevating chassis 41 and is connected to the bottom of the collective conveying and moving transposition device 40 by a transmission chain.

[0114] Specifically, the whole vehicle stack collection conveyor line 401 includes a whole vehicle conveyor line structure 4010, a multi-row flat top chain conveyor line 4011, and a flat top chain conveyor line dynamic transmission device 4012. The multi-row flat top chain conveyor line 4011 is arranged on the whole vehicle conveyor line structure 4010 and connected to the flat top chain conveyor line dynamic transmission device 4012.

[0115] The output-transfer loading front tongue 402 is located at the front end of the complete vehicle stack assembly conveyor line 401. The output-transfer loading front tongue 402 has a wedge-shaped longitudinal cross-section with a thin front end. The top surface of the output-transfer loading front tongue 402 can be switched between a horizontal plane and a forward-inclined plane. When the top surface of the output-transfer loading front tongue 402 is horizontal, it is flush with the top surface of the complete vehicle stack assembly conveyor line 401. Multiple free rollers (not labeled in the figure) are longitudinally arranged on the top of the output-transfer loading front tongue 402.

[0116] exist Figure 5 In the figure, the platform lifting chassis 41 is generally L-shaped, specifically including a base frame structure 410, lifting legs 411, and a mast pushing device 412. Among them, the base frame structure 410 is generally slender and straight, and the mast pushing device 412 is vertically fixed to the tail end of the base frame structure 410.

[0117] A plurality of lifting legs 411 are installed at the lower portion of the chassis structure 410 , and the chassis structure 410 is fixedly mounted on the ground through the lifting legs 411 . The lifting legs 411 can adjust the height of the entire vehicle's cargo stack assembly loading platform 4 .

[0118] The operation process of the whole vehicle cargo stack collection loading platform 4 is to input the circular collection cargo stack units sorted by the collection cargo stack unit sorting device 3 from the circular conveying collection platform 2 to the whole vehicle cargo stack collection loading platform 4 for whole vehicle cargo stack collection, and through sequential conveying and collection operations, the circular collection cargo stack units are assembled into whole vehicle cargo stacks that meet the loading design requirements to meet the requirements of entering the whole vehicle loading operation state.

[0119] Example 3

[0120] The method for operating the unit cargo stacking system described in Example 2 as a whole vehicle cargo stacking system includes the following steps:

[0121] S1. At the start of the operation, two unit load transfer vehicles 1 are connected to the output ends of the dual-unit depalletizing station 01, and the depalletized first longitudinal unit load and the first transverse unit load are respectively transferred to the unit load transfer vehicles 1. Since the unit loads output from the output ends of the unit load depalletizing station 01 are always in the same direction, for the sake of convenience, the unit loads output from the output ends of the unit load depalletizing station 01 along the length of the unit load's planar dimensions are referred to as longitudinal unit loads, and the unit loads output along the width of the unit load's planar dimensions are referred to as transverse unit loads.

[0122] S2. At the same time, by laterally moving the screw rod and the dynamic transmission device and the screw rod nut and the seat to the outside, the diagonally distributed longitudinal short belt conveyor lines 211 of the circular conveying and collecting platform 2 are moved to the outside on both sides respectively, so that the circular conveying and collecting platform 2 forms two independent circular platform left column collecting conveyor lines 020 and circular platform right column collecting conveyor lines 021 with gaps in the left and right columns.

[0123] It is understandable that the present application does not limit the order of step S1 and step S2.

[0124] S3. Move the unit cargo transfer and transport vehicle 1 carrying the first longitudinal unit cargo to the input end of the left column collection conveyor line 020 of the circular platform through the transfer vehicle slide rail 13, so that the first longitudinal unit cargo is transported to the left column collection conveyor line 020 of the circular platform; move another unit cargo transfer and transport vehicle 1 carrying the first transverse unit cargo to the input end of the right column collection conveyor line 021 of the circular platform through the transfer vehicle slide rail 13, so that the first transverse unit cargo is transported to the right column collection conveyor line 021 of the circular platform; make the first longitudinal unit cargo and the first transverse unit cargo become the first row of unit cargo to be collected on the circular conveying collection platform 2.

[0125] S4. Move the two unit cargo transfer and conveying vehicles 1 back to their respective output ends of the corresponding unit cargo de-palletizing stations 01, repeat the operation process of S1 above, and respectively transport the second longitudinal unit cargo and the second transverse unit cargo in the same direction as the operation of S1 above to the two unit cargo transfer and conveying vehicles 1.

[0126] Since the output ends of the two unit cargo de-palletizing stations 01 always output unit cargo longitudinally or transversely respectively, the unit cargo transfer and conveying vehicles 1 need to be moved separately and separately, and the two unit cargo transfer and conveying vehicles 1 are moved alternately to the input ends of the left column collection conveyor line 020 of the return platform and the right column collection conveyor line 021 of the return platform respectively. Even if the second transverse unit cargo is moved to the input end of the left column collection conveyor line 020 of the return platform, and the second transverse unit cargo is transported to the left column collection conveyor line 020 of the return platform, the unit cargo transfer and conveying vehicle 1 returns to empty space to avoid it, and then the second longitudinal unit cargo is moved to the input end of the right column collection conveyor line 021 of the return platform, and the second longitudinal unit cargo is transported to the right column collection conveyor line 021 of the return platform, forming a second row of unit cargo to be aggregated, and keeping a certain distance from the first row of unit cargo to be aggregated.

[0127] S5. Move the left and right columns of the short longitudinal belt conveyor lines 211 closer to the longitudinal belt conveyor line 212, so that the same row of unit cargo stacks in the left and right columns are close together, and the outer side surfaces of the two rows of cargo stacks are aligned. Then, the second row of unit cargo to be assembled is conveyed forward at the same time, so that the second row of unit cargo to be assembled is close to the first row of unit cargo to be assembled, that is, a circular collection cargo stack unit is formed on the circular conveying and assembly platform 2 (it looks like a circular shape when viewed from above).

[0128] S6. The lifting cylinder 2132 of the central lifting roller line 213 is pushed upward to raise the central lifting roller line 213 to the highest position, filling the central hole formed in the circular conveying and collecting platform 2 in this state; the collecting stacking unit sorting device 3 is operated so that the sorting clamping plates 31 are pushed from the two outer sides of the circular collecting stacking unit toward the longitudinal center line under the action of the clamping cylinder 32. Under the push and clamping of the sorting clamping plates 31, the lateral gaps between the pieces of goods in the circular collecting stacking unit are eliminated and the two outer side surfaces are flush;

[0129] S7. After the circular collection stack unit is sorted, the longitudinal short belt conveyor line 211 and the longitudinal belt conveyor line 212 of the circular conveying and collection platform 2 are started at the same time to transport the circular collection stack unit as a whole to the whole vehicle whole cargo stack collection loading platform 4 for whole vehicle whole cargo stack collection.

[0130] S8. Repeat the operations of P1-S7 until the whole vehicle cargo stack is assembled on the whole vehicle cargo stack assembly loading platform 4 in accordance with the loading design, so that the whole vehicle cargo stack assembly loading platform 4 can enter the whole vehicle cargo stack assembly loading process.

[0131] The system and method for assembling unit cargo into a complete vehicle stack provided by the present invention can realize the transportation and assembly of depalletized unit cargo into a stack unit according to the loading design, and then further assemble the stack units into a complete vehicle stack of unit cargo, thereby realizing the complete loading operation of the complete vehicle. Compared with the existing technology, the technical solution of the present invention can achieve the unitization and unitization of unit cargo loading and unloading operations, and can realize the automation and intelligence of the unitization operation mode, ultimately achieving the beneficial effects of high efficiency, low consumption, and green emission reduction in logistics operations.

[0132] The above content is only a preferred embodiment of the present invention. For ordinary technicians in this field, according to the concept of the present invention, many changes can be made in the specific implementation method and application scope. As long as these changes do not deviate from the concept of the present invention, they all fall within the scope of protection of the present invention.

Claims

1. A unit cargo return system is a system for stacking unit cargo in a vehicle. The unit cargo is of uniform specifications and has a rectangular cross-section, including length and width. Unit cargo transported along the length of the unit cargo plane is called a longitudinal unit cargo, and unit cargo transported along the width of the unit cargo plane is called a transverse unit cargo. It is characterized by: The invention comprises a unit cargo transfer and transport vehicle (1), a return conveying and collecting platform (2), a unit arranging device for collecting cargo stacks (3), and a vehicle-wide cargo stack collecting and loading platform (4); wherein the unit cargo transfer and transport vehicle (1) is arranged between a pallet removal station (01) and the return conveying and collecting platform (2), and is used to dynamically connect the pallet removal station (01) and the input end of the return conveying and collecting platform (2); the unit arranging device for collecting cargo stacks (3) is installed on the return conveying and collecting platform (2), and is used to align multiple rows of unit cargo on the return conveying and collecting platform (2); the return conveying and collecting platform (2) ... The output end of the circular conveying and collecting platform (2) is dynamically connected with the input end of the whole vehicle integral cargo stack collecting and loading platform (4); the circular conveying and collecting platform (2) includes a circular platform left column collecting conveying line (020) and a circular platform right column collecting conveying line (021) which can be separated from each other and respectively convey two columns of unit cargo, and the circular platform left column collecting conveying line (020) and the circular platform right column collecting conveying line (021) can jointly convey the two columns of unit cargo forward after being combined; the circular conveying and collecting platform (2) also includes a circular platform integral frame (210), two longitudinal short belt conveyors The short longitudinal belt conveyor line (211) and the longitudinal belt conveyor line (212) are installed on the integral frame (210) of the circular platform in a lateral sliding manner; the two short longitudinal belt conveyor lines (211) and the two longitudinal belt conveyor lines (212) are respectively arranged diagonally; the integral frame (210) of the circular platform includes a conveyor line slide rail (2101) extending in a lateral direction; the short longitudinal belt conveyor line (211) and the longitudinal belt conveyor line (212) are lateral slidingly moved on the conveyor line slide rail (2101); the The circular conveying and collecting platform (2) further comprises a central lifting roller line (213), which is arranged between the longitudinal short belt conveyor line (211) and the longitudinal belt conveyor line (212) in a lifting manner, corresponds to the two longitudinal belt conveyor lines (212) in the transverse direction, and is staggered with the two longitudinal short belt conveyor lines (211); the collecting cargo stack unit sorting device (3) comprises two sorting clamping plates (31), which are arranged vertically symmetrically along the longitudinal center line of the circular conveying and collecting platform (2) and are capable of relative movement.

2. The unit cargo return assembly as claimed in claim 1 is a whole vehicle cargo stacking operation system, characterized in that: The unit cargo transfer and transport vehicle (1) comprises a transfer vehicle body (10) and a flat-top chain conveyor device (11), wherein the transfer vehicle body (10) is capable of reciprocating between the pallet removal station (01) and the input end of the circular conveying and collecting platform (2), and the flat-top chain conveyor device (11) is laid on the upper surface of the transfer vehicle body (10), and the conveying direction of the flat-top chain conveyor device (11) is the same as the conveying direction of the circular conveying and collecting platform (2).

3. The unit cargo return assembly as claimed in claim 2 is a whole vehicle cargo stacking operation system, characterized in that: It also includes a transfer vehicle slide rail (13), the pallet removal station (01) and the return conveying collection platform (2) are respectively fixedly mounted on both sides of the length direction of the transfer vehicle slide rail (13), and the length direction of the transfer vehicle slide rail (13) is perpendicular to the conveying direction of the flat top chain conveying device (11).

4. The unit cargo return assembly as claimed in claim 2 or 3 is a whole vehicle cargo stacking operation system, characterized in that: There are multiple transfer vehicle bodies (10), and the multiple transfer vehicle bodies (10) can respectively move back and forth between the corresponding pallet removal stations (01) and the input ends of the return conveying and collecting platforms (2).

5. The unit cargo return assembly as claimed in claim 4 is a whole vehicle cargo stacking operation system, characterized in that: The longitudinal short belt conveyor line (211) comprises a longitudinal short belt conveyor line frame (2110), a longitudinal short conveyor belt (2111), a conveyor line slider (2115) and a longitudinal short transverse moving screw rod and a dynamic transmission device (2113), wherein the longitudinal short conveyor belt (2111) is laid on the upper surface of the longitudinal short belt conveyor line frame (2110), and the conveyor line slider (2115) is fixedly mounted on the longitudinal short belt conveyor line frame (2110) and matched with the conveyor line slide rail (2101); the longitudinal short transverse moving screw rod and the dynamic transmission device (2113) can drive the longitudinal short belt conveyor line frame (2110) to slide along the conveyor line slide rail (2101) through the conveyor line slider (2115).

6. The unit cargo return assembly as claimed in claim 5 is a whole vehicle cargo stacking operation system, characterized in that: The longitudinal short belt conveyor line (211) further comprises a longitudinal short conveyor line dynamic transmission device (2112), the output end of which is connected to the longitudinal short conveyor belt (2111) to drive the longitudinal short conveyor belt (2111) to convey unit cargo in the longitudinal direction.

7. The unit cargo return assembly as claimed in claim 6 is a whole vehicle cargo stacking operation system, characterized in that: The longitudinal belt conveyor line (212) comprises a longitudinal belt conveyor line frame (2120), a longitudinal conveying belt (2121), a conveyor line slider (2115) and a longitudinal and transverse moving screw and a dynamic transmission device, wherein the longitudinal conveying belt (2121) is laid on the upper surface of the longitudinal belt conveyor line frame (2120), and the conveyor line slider (2115) is fixedly mounted on the longitudinal belt conveyor line frame (2120) and matched with the conveyor line slide rail (2101); the longitudinal and transverse moving screw and the dynamic transmission device can drive the longitudinal belt conveyor line frame (2120) to slide along the conveyor line slide rail (2101) through the conveyor line slider (2115).

8. The unit cargo return assembly as claimed in claim 7 is a whole vehicle cargo stacking operation system, characterized in that: The longitudinal belt conveyor line (212) further comprises a longitudinal conveyor line dynamic transmission device (2122), the output end of which is connected to the longitudinal conveyor belt (2121) to drive the longitudinal conveyor belt (2121) to convey unit cargo in the longitudinal direction.

9. The unit cargo return assembly as claimed in claim 1 is a whole vehicle cargo stacking operation system, characterized in that: The central lifting roller line (213) is configured such that when it is lifted to a certain lift, its upper plane is on the same plane as the upper planes of the longitudinal short belt conveyor line (211) and the longitudinal belt conveyor line (212); and when it is lifted to another lift, its upper plane is lower than the lower planes of the longitudinal short belt conveyor line (211) and the longitudinal belt conveyor line (212).

10. The unit cargo return assembly as claimed in claim 9 is a whole vehicle cargo stacking operation system, characterized in that: The central lifting roller line (213) includes a conveying roller line (2130), a vertical push rod (2131), and a lifting cylinder (2132), wherein the conveying roller line (2130) is capable of conveying unit cargo longitudinally and is fixedly installed on the upper part of the vertical push rod (2131). The vertical push rod (2131) is fixedly connected to the telescopic end of the lifting cylinder (2132), and the fixed end of the lifting cylinder (2132) is fixedly set on the integral frame (210) of the circular platform.

11. The unit cargo return assembly as claimed in claim 10 is a whole vehicle cargo stacking operation system, characterized in that: The central lifting roller line (213) further comprises a vertical slider (2133) and a vertical guide rail (2134) that cooperate with each other, wherein the vertical slider (2133) is fixedly arranged on the vertical push rod (2131), and the vertical guide rail (2134) is fixedly arranged on the circular platform integral frame (210).

12. The unit cargo return assembly as claimed in claim 1 is characterized in that: The stacking unit sorting device (3) further comprises a device gate-shaped bracket (30) and a clamping oil cylinder (32), wherein the device gate-shaped bracket (30) is arranged across both sides and above the circular conveying and collecting platform (2), the sorting clamping plate (31) and the clamping oil cylinder (32) are both mounted on the device gate-shaped bracket (30), and the sorting clamping plate (31) is fixedly connected to the output end of the clamping oil cylinder (32).

13. The unit cargo return assembly as claimed in claim 12 is a whole vehicle cargo stacking operation system, characterized in that: The arranging clamping plate (31) comprises a clamping plate (311), a clamping plate rear frame (313) and an intermediate shear frame (314); the outer side surface of the clamping plate (311) is fixedly connected to the clamping plate rear frame (313); and the clamping plate rear frame (313) and the intermediate shear frame (314) are connected together.

14. The unit cargo return assembly as claimed in claim 13 is a whole vehicle cargo stacking operation system, characterized in that: The two shear frame ends at the upper portion of the intermediate shear frame (314) are respectively hinged to the upper portion of the device gate-shaped bracket (30) and the clamping plate rear frame (313), and the two shear frame ends at the lower portion of the intermediate shear frame (314) are respectively slidably arranged in the slide grooves (315) at the lower portion of the device gate-shaped bracket (30) and the clamping plate rear frame (313).

15. The unit cargo return assembly as a whole vehicle cargo stacking operation system according to claim 1 is characterized in that: The whole vehicle cargo stack collection loading platform (4) comprises a collection conveying movement transposition device (40) and a platform lifting chassis (41). The collection conveying movement transposition device (40) is arranged on the platform lifting chassis (41), and its input end is dynamically connected with the output end of the circular conveying collection platform (2), and can perform longitudinal reciprocating movement on the platform lifting chassis (41) and on the bottom plate of the vehicle compartment.

16. The unit cargo return assembly into a whole vehicle cargo stacking operation system according to claim 15, characterized in that: The collective conveying, moving and transposing device (40) comprises a whole vehicle cargo stack collective conveying line (401) and an output transposing and loading front tongue (402), wherein the output transposing and loading front tongue (402) is arranged at the front end of the whole vehicle cargo stack collective conveying line (401).

17. The unit cargo return assembly as claimed in claim 16 is a whole vehicle cargo stacking operation system, characterized in that: The whole vehicle integral cargo stack collection conveyor line (401) comprises a whole vehicle integral conveyor line structure (4010), a multi-row flat-top chain conveyor line (4011) and a flat-top chain conveyor line dynamic transmission device (4012); the multi-row flat-top chain conveyor line (4011) is arranged on the whole vehicle integral conveyor line structure (4010) and is connected to the output end of the flat-top chain conveyor line dynamic transmission device (4012).

18. The unit cargo return assembly as claimed in claim 16 or 17 is a whole vehicle cargo stacking operation system, characterized in that: The upper plane of the output transposition loading front tongue (402) can be switched between a horizontal plane and a forward-inclined plane, and a plurality of free rollers are longitudinally arranged on the upper part of the output transposition loading front tongue (402).

19. The unit cargo return assembly as claimed in claim 18 is a whole vehicle cargo stacking operation system, characterized in that: The platform lifting chassis (41) comprises a base frame structure (410), lifting legs (411), and a door frame pushing and blocking device (412). The door frame pushing and blocking device (412) is vertically fixed to the rear end of the base frame structure (410), and a plurality of lifting legs (411) are installed at the lower part of the base frame structure (410) in a lifting manner.

20. A method for using the unit cargo stacking system as claimed in claims 1 to 19, characterized in that: The following steps are involved: S1. At the beginning of the operation, the two unit cargo transfer and transport vehicles (1) are connected to the output ends of the pallet removal station (01) of the dual unit, and the first longitudinal unit cargo and the first transverse unit cargo that have been removed from the pallet are respectively transported to the unit cargo transfer and transport vehicles (1); S2, moving the diagonally distributed longitudinal short belt conveyor lines (211) and / or the longitudinal belt conveyor lines (212) of the circular conveying and collecting platform (2) to the outside sides respectively, so that the circular conveying and collecting platform (2) forms two independent circular platform left column collecting conveyor lines (020) and circular platform right column collecting conveyor lines (021) with a gap therebetween; S3, moving the unit cargo transfer and transport vehicle (1) carrying the first longitudinal unit cargo to the input end of the left column collection conveyor line (020) of the return platform, so that the first longitudinal unit cargo is transported to the left column collection conveyor line (020) of the return platform; moving another unit cargo transfer and transport vehicle (1) carrying the first transverse unit cargo to the input end of the right column collection conveyor line (021) of the return platform, so that the first transverse unit cargo is transported to the right column collection conveyor line (021) of the return platform; making the first longitudinal unit cargo and the first transverse unit cargo become the first row of unit cargo to be collected on the return transport collection platform (2); S4, the two unit cargo transfer and conveying vehicles (1) are respectively moved to the output ends of the corresponding unit cargo pallet removal stations (01), and the operation process of the above S1 is repeated, and the second transverse unit cargo carried is respectively conveyed to the left column collection conveyor line (020) of the return platform, and the second longitudinal unit cargo carried is conveyed to the right column collection conveyor line (021) of the return platform, and a second row of unit cargo to be collected is formed on the left column collection conveyor line (020) and the right column collection conveyor line (021) of the return platform, and a gap is set between the second row of unit cargo to be collected and the first row of unit cargo to be collected; S5, relatively moving the left row collection conveyor line (020) of the circular platform and the right row collection conveyor line (021) of the circular platform together, so that the same row of unit cargo stacks of the left and right rows are close together and the outer side surfaces of the front and rear rows of unit cargo are aligned, and then simultaneously conveying the second row of unit cargo to be collected forward, so that the second row of unit cargo to be collected is close to the first row of unit cargo to be collected, that is, forming a circular collection cargo stack unit on the circular conveying and collecting platform (2); S6, operating the said collective cargo stack unit arranging device (3) to level and align the said circular collective cargo stack unit, so that the lateral gaps between the cargo pieces of the said circular collective cargo stack unit are eliminated and the two outer side surfaces are level; S7, after the circular collection stack unit is sorted, the central lifting roller line (213) is raised, and the circular conveying and collecting platform (2) is started to transport the circular collection stack unit as a whole to the whole vehicle whole stack collection loading platform (4) for whole vehicle whole stack collection.

21. The method for using the unit cargo stacking system according to claim 20, characterized in that: The following steps are also included: S8, repeat the operations of P1-S7 until the whole vehicle cargo stack is assembled on the whole vehicle cargo stack assembly loading platform (4) according to the loading design, so that the whole vehicle cargo stack assembly loading platform (4) can enter the whole vehicle cargo stack assembly loading process.

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