CN115744319A - Unit goods stacking method, operation system and operation method thereof - Google Patents

Abstract

The invention discloses a unit goods stacking method, an operation system and an operation method thereof, wherein the unit goods stacking method comprises the following steps: conveying the first pallet container unit to a unit cargo stacking station, and clamping the first unit cargo on the unit cargo stacking station; transferring the first unit goods from the unit goods stacking station to a reciprocating temporary storage station for temporary storage; conveying the second pallet container unit to a unit cargo stacking station, and clamping the second unit cargo on the unit cargo stacking station; transferring the first unit goods from the reciprocating temporary storage station to return to the unit goods stacking station; and on the unit goods stacking station, the second unit goods are located on the top plane of the first unit goods to form stacked unit goods. The stacked unit goods can meet the height requirement of loading design and the height requirement of other operation links.

Description

Unit goods stacking method, operation system and operation method thereof

Technical Field

The invention belongs to the integrated loading and unloading technology of a whole integrated unit cargo in the technical field of unit cargo unitized logistics operation, and particularly relates to a unit cargo stacking method, an operation system and an operation method thereof.

Background

According to the national standard, the definition of unit goods is: a group of goods or packages are assembled together by one or more means to form an integral unit for handling, transportation, stacking and storage. The definition of the pallet container unit is: the unit goods and the pallet form a whole. The package assemblies are stacked on pallets, with appropriate fixings for mechanical handling and transport. The unit load is, as defined above, an integral unit of a stack of pallets on pallets without pallets.

In the whole logistics process, the height size of unit goods is in different operation links, so that the problem that the unit goods are not in the optimal operation size generally exists. In the product logistics operation link in a factory, the height of the pallet container unit is generally less than 1.6 meters, and the height of unit goods, particularly unit goods with high specific gravity, is smaller. In the transportation link, in order to improve the actual load rate of the goods, the height of the unit goods is often required to be matched with the height in a carriage and a container, and is generally 2.3 meters or more; whereas in railway wagons the optimum height dimension of the unit load is larger.

In order to obtain high efficiency and low consumption of the logistics full-flow operation, the high efficiency and low consumption of the operation must be adhered to in each operation link, and no link is lost. Therefore, it is necessary to adjust the height of the unit goods in different operation links in the whole process to the optimal height according to the operation requirement for logistics operation.

Disclosure of Invention

The invention aims to provide a unit cargo stacking method, an operating system and an operating method thereof for processing a tray container unit into stacked unit cargos.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a method of stacking unit loads, comprising the steps of:

s1, conveying a first tray container unit to a unit cargo stacking station, carrying out clamping on a first unit cargo on the unit cargo stacking station, lifting to a first designated position, and then moving out a first tray;

s2, on the unit goods stacking station, the first unit goods are lowered to remove lifting and clamping, and then the first unit goods are transferred from the unit goods stacking station to a reciprocating temporary storage station for temporary storage;

s3, conveying a second pallet container unit to the unit cargo stacking station, carrying out clamping on the second unit cargo on the unit cargo stacking station, lifting the second unit cargo to a second appointed position height, and then moving out of the second pallet;

s4, transferring the first unit goods from the temporary storage station to and fro and returning the first unit goods to the unit goods stacking station; on the unit goods stacking station, the second unit goods are descended from the height of a second appointed position and correspondingly located on the top plane of the first unit goods to form stacked unit goods, and the clamp of the second unit goods is removed;

s5, transferring the stacked unit goods from the unit goods stacking station to the to-and-fro temporary storage station;

s6, conveying the stacked unit goods to the next process on the reciprocating temporary storage station; or temporarily storing the goods again on the reciprocating temporary storage station, and repeating the operation S1-S5 to stack the rest unit goods.

Further, the method also comprises the following steps: and automatically recycling the tray.

A unit cargo stacking operation system comprising:

the stacking unit is used for removing the trays of the tray container units to obtain unit goods and stacking one unit goods to the top surface of the other unit goods to form stacked unit goods;

the unit goods stacking station is arranged at the stacking unit;

the front conveyor unit comprises a tray bidirectional conveyor line for conveying the tray container units to the unit cargo stacking station, and one end of the front conveyor unit is connected with the stacking unit;

the reciprocating temporary storage station is arranged at the temporary storage transfer unit;

the temporary storage transfer unit comprises a conveying transfer cart which is used for conveying the unit goods or the stacked unit goods back and forth between the unit goods stacking station and the back and forth temporary storage station.

Further, the front conveyor unit further comprises an empty tray recovery line used for moving empty trays out of the unit goods stacking station, and one end of the empty tray recovery line is connected with the stacking unit through the tray bidirectional conveying line.

Further, the tray bidirectional conveying line comprises a roller conveying line and a chain conveying line; the outer section of the tray bidirectional conveying line is a roller conveying line, and the outer end of the roller conveying line is connected with the input end of the tray packaging unit; the inner section of the tray bidirectional conveying line is a chain conveying line, 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 with the inner end of the roller conveying line.

Further, the empty tray recovery line comprises a jacking steering transfer conveyor and an empty tray roller line; the jacking steering transfer conveyor is provided with two connected conveying machines, one conveying machine is arranged at the roller conveying line, and the other conveying machine is arranged at the empty tray roller line on one side of the roller conveying line.

Further, the stacking unit comprises a main stand and a stacking machine, wherein the main stand is arranged at the unit goods stacking station; the stacker crane is arranged on the main vertical frame in a lifting manner and is used for clamping and lifting the unit goods.

Further, the stacker crane comprises a holding and clamping frame, at least two-way holding clamps or four-way holding clamps for holding and clamping the unit cargos and a lifting transmission device; the lifting transmission device is fixedly arranged on the main vertical frame, the output end of the lifting transmission device is fixedly connected with the clamping frame, and the two-direction or four-direction clamping devices are oppositely arranged on the clamping frame in pairs.

Further, the holding and clamping frame comprises an integral frame structure and a lifting connecting part, wherein the lifting connecting part is fixedly arranged on the integral frame structure and is fixedly connected with the lifting transmission device.

Further, the clamping frame further comprises a roller, and the roller is arranged on the outer side of the integral frame structure and is abutted to the main vertical frame.

Furthermore, the integral frame structure comprises two horizontal frames, four corner vertical rods and clamping plate vertical rods; the two horizontal frames are fixedly connected together through the four corner vertical rods, a pair of clamping plate vertical rods is arranged between every two adjacent four corner vertical rods, and each pair of clamping plate vertical rods and the other pair of clamping plate vertical rods are arranged oppositely.

Further, the four-way clasping clamp comprises a four-way clasping clamp plate and a clasping clamp power, wherein the fixed end of the clasping clamp power is arranged on the clasping clamp frame, and the telescopic end of the clasping clamp power acts on the four-way clasping clamp plate.

Furthermore, the four-way clamp further comprises a clamping fork frame which is telescopically arranged between the four-way clamping plate and the corresponding clamping plate vertical rod.

Furthermore, the double upper fork ends of the clamping scissor fork frame are fixedly hinged with the upper parts of the four-way clamping plate and the clamping plate vertical rod respectively, and the double lower fork ends of the clamping scissor fork frame are slidably hinged with the lower parts of the four-way clamping plate and the clamping plate vertical rod respectively; the telescopic end of the holding clamp power is arranged on the holding clamp fork frame.

Furthermore, the four-way clasping clamp further comprises an elastic panel, and the elastic panel is laid on the operation surface of the four-way clasping clamp plate.

Furthermore, the lifting transmission device comprises lifting power, a transmission shaft, a lifting chain wheel and a lifting chain, wherein the lifting power is fixedly arranged on the main vertical frame; the lifting chain wheels are correspondingly and fixedly arranged at the upper parts and the lower parts of the four main vertical frames; one end of the transmission shaft is connected with the output shaft of the lifting power, and the other end of the transmission shaft is connected with the lifting chain wheel; the lifting chain is wound on the lifting chain wheel, and two ends of the lifting chain are fixedly connected with the clamping frame.

Furthermore, the temporary storage and transfer unit also comprises a conveying transfer vehicle slide rail, the reciprocating temporary storage station is arranged at the inner section of the conveying transfer vehicle slide rail, and the outer section of the conveying transfer vehicle slide rail is arranged at the unit cargo stacking station; the conveying transfer trolley is slidably arranged on the conveying transfer trolley slide rail and moves back and forth between the reciprocating temporary storage station and the unit cargo stacking station.

Further, the conveying transfer cart comprises a transfer cart 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 is paved on the upper surface of the transfer cart body, and the conveying direction of the flat-top chain conveying device is the same as the moving direction of the conveying transfer cart.

Further, the temporary storage and transfer unit further comprises an integrated rack, and the conveying transfer trolley slide rail and the chain conveying line of the front conveyor unit are laid on the integrated rack.

An operation method of a unit cargo stacking operation system, the unit cargo stacking operation system comprising:

the stacking unit is used for removing the trays of the tray container units to obtain unit goods and stacking one unit goods to the top surface of the other unit goods to form stacked unit goods;

the unit goods stacking station is arranged at the stacking unit;

the front conveyor unit comprises a tray bidirectional conveyor line for conveying the tray container units to the unit cargo stacking station, and one end of the front conveyor line is connected with the stacking unit;

the reciprocating temporary storage station is arranged at the temporary storage transfer unit;

the temporary storage and transfer unit comprises a conveying transfer cart for conveying the unit goods or the stacked unit goods back and forth between the unit goods stacking station and the back and forth temporary storage station;

the operation method comprises the following steps:

p1, conveying a first tray assembly unit to the unit cargo stacking station through the front conveyor set, clamping first unit cargos of the first tray assembly unit on the unit cargo stacking station by using the stacking machine set, lifting the unit cargos to a first designated position, moving the first tray out, and simultaneously moving the conveying transfer cart to the unit cargo stacking station;

p2, on the unit goods stacking station, the stacking unit is used for lowering, lifting and releasing the first unit goods, so that the first unit goods are placed on the conveying transfer cart and then the clasping is released, and then the conveying transfer cart transfers the first unit goods from the unit goods stacking station to the reciprocating temporary storage station for temporary storage;

p3, conveying a second pallet assembly unit to the unit cargo stacking station through the front conveyor unit, clamping second unit cargos of the second pallet assembly unit on the unit cargo stacking station by using the stacking machine set, lifting the second unit cargos to a second designated position, and then moving the second pallet out; transferring the conveying transfer cart carrying the first unit goods from the reciprocating temporary storage station to return to the unit goods stacking station;

p4, on the unit goods stacking station, lowering the second unit goods from the second appointed position height, correspondingly sitting on the top plane of the first unit goods on the conveying transfer vehicle to form stacked unit goods, and removing the clasping clamp of the second unit goods;

p5, transferring a conveying transfer vehicle carrying the stacked unit goods from the unit goods stacking station to the reciprocating temporary storage station;

p6, conveying stacked unit goods to the next process on the reciprocating temporary storage station; or temporarily storing the goods again on the reciprocating temporary storage station, and repeating the steps P1-P5 to stack the rest unit goods.

The invention has the beneficial effects that:

the unit goods stacking operation system enables the stacked unit goods after being processed to be suitable for the height requirement of loading design and the height requirement of other operation links, and finally can obtain the logistics operation effect with high efficiency, low consumption and environmental protection through the collection of stacked unit goods in the subsequent process and the whole loading operation of the integrated unit goods.

Drawings

FIG. 1 is a schematic perspective view of a unit goods stacking operation system according to the present invention in a preferred embodiment;

FIG. 2 is a perspective view of the bi-directional conveyor line for pallets and the staging conveyor assembly of the present invention in a preferred embodiment;

figure 3 is a schematic perspective view of the palletizing assembly according to the present invention in a preferred embodiment;

FIG. 3.1 is a schematic perspective view of a four-way clamp of the present invention in a preferred embodiment;

FIG. 3.2 is a side view of the four-way clamp of the present invention in a preferred embodiment;

fig. 4 is a perspective view of a buffer transfer set according to a preferred embodiment of the invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of 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 merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be 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 be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

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

The invention discloses a unit goods stacking method, which comprises the following steps:

s1, conveying a first tray container unit to a unit cargo stacking station, carrying out clamping on a first unit cargo on the unit cargo stacking station, lifting to a first designated position, and then moving out a first tray;

s2, on the unit goods stacking station, the first unit goods are lowered to remove lifting and clamping, and then the first unit goods are transferred from the unit goods stacking station to a reciprocating temporary storage station for temporary storage;

s3, conveying a second pallet container unit to the unit cargo stacking station, carrying out clamping on the second unit cargo on the unit cargo stacking station, lifting the second unit cargo to a second appointed position height, and then moving out of the second pallet;

s4, transferring the first unit goods from the temporary storage station to return to the unit goods stacking station; on the unit goods stacking station, the second unit goods are descended from the height of a second appointed position and correspondingly located on the top plane of the first unit goods to form stacked unit goods, and the clamp of the second unit goods is removed;

s5, transferring the stacked unit goods from the unit goods stacking station to the to-and-fro temporary storage station;

s6, conveying the stacked unit goods to the next process on the reciprocating temporary storage station; or temporarily storing the goods again on the reciprocating temporary storage station, and repeating the operation S1-S5 to stack the rest unit goods.

The invention also provides a unit goods stacking operation system capable of realizing the unit goods stacking method. Referring to fig. 1-4, a preferred embodiment of the present invention provides a unit goods stacking operation system, which includes:

the stacking unit 2 is used for removing the trays of the tray container units to obtain unit goods and stacking one unit goods to the top surface of the other unit goods to form stacked unit goods;

the unit goods stacking station is arranged at the stacking unit 2;

the front conveyor set 1 comprises a bidirectional pallet conveying line 10 for conveying pallet container units to the unit cargo stacking station, and one end of the bidirectional pallet conveying line is connected with the stacking set 2;

the reciprocating temporary storage station is arranged at the temporary storage transfer unit;

the temporary storage and transfer unit 3 comprises a conveying transfer cart 30 for conveying the unit goods or the stacked unit goods to and fro between the unit goods stacking station and the reciprocating temporary storage station.

The above components are described in further detail below.

From fig. 1 and fig. 2, the front conveyor unit 1 comprises a bidirectional pallet conveying line 10 and an empty pallet recycling line 11 which are arranged vertically to each other, and both the bidirectional pallet conveying line 10 and the empty pallet recycling line 11 can be in conveying connection with the palletizing unit 2; the two-way tray conveying line 10 and the temporary storage and transfer unit 3 are arranged on the same straight line.

As seen in fig. 2, the bidirectional pallet conveying line 10 includes a roller conveying line 100 and a chain conveying line 101. Specifically, the outer section of the tray bidirectional conveying line 10 is a roller conveying line 100, and the outer end of the roller conveying line 100 is connected with the input end of the tray packaging unit; the inner section of the tray bidirectional conveying line 10 is a chain conveying line 101, the inner end of the chain conveying line 101 is located at the unit goods stacking station, and the outer end of the chain conveying line is connected with the inner end of the roller conveying line 100. Wherein, the unit goods stacking station is arranged in the stacking unit 2 on the chain conveying line 101. The chain conveyor line 101 is disposed on the upper plane of the outer section of the below-described integrated frame 32.

As can also be seen from fig. 2, the empty pallet retrieval line 11 includes a lift-up steering transfer conveyor 110 and an empty pallet roller line 111. The jacking, steering and transferring conveyor 110 is provided with two connected conveyors, one on the right side is arranged at the roller conveying line 100, and the other on the left side is arranged at the empty pallet roller line 111. The empty tray recovery line 11 can be connected with the bidirectional conveying line 10 for conveying empty trays in a reversing 90-degree mode and recovering the empty trays.

The main function of the front conveyor set 1 is that during operation, the pallet container units are input from the roller conveyor line 100 of the pallet bidirectional conveyor line 10 and are relayed and conveyed to the unit goods stacking station in the stacking set 2 through the chain conveyor line 101. At unit goods pile station department, the unit goods of tray collection dress unit is embraced the clamp and is promoted by pile up neatly unit 2 after, and the tray of tray collection dress unit can export the return through the chain transfer chain 101 and the roller transfer chain 100 of the two-way transfer chain 10 of tray to through empty tray recovery line 11 trade 90 degrees to exporting and retrieve.

Fig. 1, 3, 3.1, 3.2 are schematic views of an embodiment of a palletizing unit 2, the palletizing unit 2 mainly comprises a main stand 20 and a palletizer 21.

As shown in fig. 3, the main vertical frame 20 is fixedly disposed at the unit goods stacking station, spanning over the chain conveyor line 101 and the below-described conveyor transfer cart slide rail 31, respectively. Specifically, the main stand 20 includes four uprights 200, a horizontal pull rod 201, and an upright base 202. The four upright posts 200 are connected into an integrated structure by using a plurality of groups of horizontal pull rods 201, an upright post base 202 is arranged at the bottom of the four upright posts 200, and the main upright frame 20 is installed on the ground through the upright post base 202.

As shown in fig. 3, 3.1 and 3.2, the stacker crane 21 includes a holding frame 210, a four-way holding clamp 211 and a lifting transmission device 212. As shown in fig. 3, the stacker crane 21 is arranged in the four columns 200 in a liftable manner, and a lifting transmission device 212 of the stacker crane 21 is arranged on the flat pull rod 201 at the top of the main stand 20 and the four columns 200.

In a preferred embodiment of the present application, as shown in fig. 3.1 and 3.2, the clamping frame 210 includes an integral frame structure, and a lifting connection 2103 and a roller 2104.

The overall frame structure specifically comprises a horizontal frame 2100, four corner vertical bars 2101 and clamping plate vertical bars 2102 which are arranged up and down. The horizontal frame 2100 has an upper structure and a lower structure, and four corners of the upper horizontal frame 2100 and four corners of the lower horizontal frame 2100 are connected by a four-corner vertical bar 2101. A pair of clamping plate vertical rods 2102 are arranged between the four corner vertical rods 2101, and an upper horizontal frame 2100, a lower horizontal frame 2100, the four corner vertical rods 2101 and the clamping plate vertical rods 2102 are connected to form an integral frame structure of the clamping frame 210.

The upper and lower four corners of the holding frame 210 are respectively provided with a lifting connection part 2103, and the lifting connection part 2103 is fixedly connected with a lifting chain 2123 of the lifting transmission device 212. During operation, the clamping frame 210 is lifted by the lifting chain 2123.

The rollers 2104 are respectively arranged at the outer sides of the upper end and the lower end of the four-corner vertical bar 2101, and the rollers 2104 can restrain and position the horizontal position and the lifting motion of the holding and clamping frame 210 in the main vertical frame 20.

The four-way clasps 211 are symmetrically arranged in the clasping frame 210 along the vertical center line of the clasping frame 210 in opposite directions. Specifically, as shown in fig. 3.1 and 3.2, the four-way clasping device 211 comprises a four-way clasping plate 2110, a clasping scissor fork 2111, a clasping power 2112 and an elastic panel (not shown), wherein the four-way clasping plate 2110 is connected with the clasping plate vertical bar 2102 through the clasping scissor fork 2111.

Specifically, the double upper fork ends of the clamping scissor fork 2111 are fixedly hinged to the upper portions of the four-way clamping plate 2110 and the clamping plate vertical bar 2102 through hinge round holes 2113, and the double lower fork ends of the clamping scissor fork 2111 are slidably hinged to the lower portions of the four-way clamping plate 2110 and the clamping plate vertical bar 2102 through long sliding grooves 2114.

The fixed end of the clasping power 2112 is arranged on the clasping frame 210, and the telescopic end of the clasping power 2112 is arranged on the clasping fork frame 2111. In operation, the four-way clamping plate 2110 performs inward clamping or outward releasing action through the push-pull movement of the clamping power 2112 and under the action of the clamping fork 2111. Preferably, the clasping power 2112 is a cylinder, although it will be appreciated that the clasping power 2112 could be a cylinder or a motor.

An elastic panel made of an elastic material is laid on the working surface of the four-way clamp plate 2110 to increase friction force during working.

It will be appreciated that the four-way clamping structure (the four-way clamping plate 2110) of the palletizer 21 may be simplified to a two-way clamping structure, as the unit goods of the pallet loading unit can be effectively clamped by the front and rear or left and right clamping.

As shown in fig. 3, 3.1 and 3.2, the two sets of elevation transmission devices 212 provided at opposite positions include elevation power 2120, a transmission shaft 2121, an elevation sprocket 2122 and an elevation chain 2123. Wherein, the lifting power 2120 is arranged on the top flat pull rod 201 of the main vertical frame 20. The lifting sprockets 2122 are correspondingly fixed on the upper and lower parts of the four columns 200, and the lifting sprockets 2122 on the upper part of the four columns 200 are connected to the lifting power 2120 through the transmission shaft 2121. The lifting chains 2123 respectively go around the upper and lower lifting sprockets 2122 disposed on the four upright posts 200, and two ends of the lifting chains 2123 are respectively and fixedly connected to the lifting connection portions 2103 disposed at the upper and lower corners of the clamping frame 210.

With this arrangement, the stacker crane 21 can be lifted and lowered within the main stand 20 by the lifting transmission device 212 according to the work requirement. During the lifting process, the rollers 2104 arranged at the four corners of the upper and lower horizontal frames 2100 can enable the stacker crane 21 to perform four-way horizontal positioning through the constraint of the four upright posts 200.

The stacking unit 2 has the main functions that during operation, unit goods of a pallet container unit entering the unit goods stacking station through the front conveyor unit 1 are clamped in a four-way or two-way mode, and the unit goods are lifted upwards to a first designated height position and then are suspended; the empty pallets separated from the unit cargos are recovered through the front conveyor unit 1, meanwhile, the conveying transfer car 30 is moved to a unit cargo stacking station in the stacking unit 2, the unit cargos at a first appointed height position are lifted, the unit cargos are placed on the conveying transfer car 30 and then the clasping is removed, and then the conveying transfer car 30 loaded with the unit cargos is moved from the unit cargo stacking station to a to-and-fro temporary storage station for temporary storage; and repeating the operation process, and according to the operation process, lifting the unit goods to the second or third designated height position respectively after being clamped, and completing the continuous operation process, thereby realizing the unit goods stacking operation.

Fig. 1 and 4, and fig. 2 show a temporary storage and transfer unit 3 according to an embodiment. The temporary storage and transfer unit 3 includes a transport vehicle 30, a transport vehicle slide rail 31, and an integrated frame 32.

As can be seen from fig. 4, a pair of conveying vehicle slide rails 31 are symmetrically arranged in parallel in the integrated frame 32. Wherein, the inner section of the slide rail 31 of the conveying and transferring vehicle is provided with a to-and-fro temporary storage station, and the outer section of the slide rail 31 of the conveying and transferring vehicle is arranged at the unit goods stacking station in the stacking unit 2. The conveying transfer cart 30 is slidably disposed on the conveying transfer cart slide rail 31, and reciprocates between the temporary storage station and the unit goods stacking station through the conveying transfer cart slide rail 31.

As can be seen from fig. 4, the conveying cart 30 includes a cart body 300, a flat-top chain conveying device 301, a flat-top chain transmission device 302, and a transfer transmission device 303. The transfer cart body 300 is a main structure for conveying the transfer cart 30, and the flat top chain conveying device 301 and the flat top chain transmission device 302 are provided on the transfer cart body 300. The flat top chain transfer device 301 and the flat top chain transmission device 302 constitute a flat top chain transfer line on the transfer cart body 300.

The transfer transmission device 303 includes a driving power (not shown) and a moving rack 3030, wherein the driving power (not shown) is disposed at a lower portion of the transfer vehicle body 300, and an output end thereof is engaged with the moving rack 3030. The movable rack 3030 is correspondingly laid on the integrated frame 32.

Further, a moving slider (not shown) is provided on the lower portion of the transfer cart body 300. The transfer cart body 300 is slidably disposed on the conveying transfer cart slide rail 31 through a moving slider, and the conveying transfer cart 30 reciprocates on the conveying transfer cart slide rail 31 by a driving power (not shown) and a driving and transmission action of the moving rack 3030.

The plane size of the conveying transfer cart 30 is related to the plane size of the tray; the moving direction of the conveying transfer cart 30 is the same as the conveying direction of the flat-top chain conveying device 301; the dynamic output end of the conveying carrier 30 is connected to the next unit cargo gathering operation process.

As shown in fig. 4, the integral frame 32 is composed of four vertical posts (not shown) disposed at four corners, a middle composite vertical post disposed at the middle, and a longitudinal pull rod and a transverse pull rod. A conveying transfer vehicle slide rail 31 and a chain conveyor line 101 are provided in the vertical direction on the upper portion of the integrated frame 32. Wherein, at the unit goods stacking station in the stacking unit 2, the conveying transfer vehicle slide rails 31 and the chain conveying line 101 are provided with overlapped sections, and in the overlapped sections, the conveying transfer vehicle slide rails 31 are symmetrically arranged in the chain conveying line 101.

The main function of the temporary storage and transfer unit 3 is that during operation, the conveying and transfer vehicle 30 reciprocates between the unit goods stacking station and the reciprocating temporary storage station through the conveying and transfer vehicle slide rail 31. On the unit goods pile up neatly station, carry and move carrier 30 and bear the weight of the first unit goods after going to the tray and removing the embrace clamp through pile up neatly unit 2 at first to with the first unit goods by unit goods pile up neatly worker displacement send to and come to and go to keep in the station and keep in, let out the unit goods pile up neatly station simultaneously. After the second unit goods are subjected to tray removal and holding and lifting on the unit goods stacking station, the conveying transfer cart 30 carries the first unit goods and transfers the first unit goods to and fro the temporary storage station to return to the unit goods stacking station, and then the stacking unit 2 removes lifting and holding of the second unit goods, so that the second unit goods are correspondingly positioned on the top plane of the first unit goods, and the operation of forming a stacked unit goods by the first unit goods and the second unit goods is finished. The conveying transfer cart 30 carries stacked unit goods and moves to a reciprocating temporary storage station through movement, and then the stacked unit goods are output from the conveying transfer cart 30 to enter a next gathering operation procedure according to operation requirements or on the reciprocating temporary storage station, or the conveying transfer cart 30 and stacked unit goods stacked by two stacked unit goods are transferred again and returned to the unit goods stacking station to perform stacking operation of third unit goods.

The invention also provides an operation method of the unit cargo stacking operation system of the unit cargo stacking method, which comprises the following steps:

p1, conveying a first tray container unit to a unit cargo stacking station through a tray bidirectional conveying line 10, clamping a first unit cargo of the first tray container unit by using a stacking unit 2 on the unit cargo stacking station, lifting the first unit cargo to a first designated position height, then moving the first tray out, recovering the first tray through the tray bidirectional conveying line 10 and an empty tray recovery line 11, and simultaneously moving a conveying transfer cart 30 to the unit cargo stacking station;

p2, on the unit goods stacking station, the stacking unit 2 is used for lowering, lifting and releasing the first unit goods, so that the first unit goods are placed on the conveying transfer cart 30 and then the clasping is released, and the conveying transfer cart 30 is used for transferring the first unit goods from the unit goods stacking station to the reciprocating temporary storage station for temporary storage;

p3, conveying the second pallet container unit to a unit cargo stacking station through a pallet bidirectional conveying line 10, clamping second unit cargos of the second pallet container unit by using the stacking unit 2 on the unit cargo stacking station, lifting the second unit cargos to a second designated position, and then moving the second unit cargos out of a second pallet, wherein the second pallet is recovered through the pallet bidirectional conveying line 10 and an empty pallet recovery line 11; transferring the conveying transfer cart 30 carrying the first unit goods from the temporary storage station to return to the unit goods stacking station;

p4, on the unit goods stacking station, lowering the second unit goods from the height of the second appointed position and correspondingly sitting on the top plane of the first unit goods on the conveying transfer cart 30 to form stacked unit goods, and removing the clasping of the second unit goods;

p5, transferring the conveying transfer cart 30 carrying the stacked unit goods from the unit goods stacking station to a reciprocating temporary storage station;

p6, conveying the stacked unit goods to the next process on the reciprocating temporary storage station; or the temporary storage is carried out again on the reciprocating temporary storage station, and the P1-P5 operation is repeated to carry out the stacking operation of the third unit goods or more units of goods.

The unit goods stacking operation system enables the stacked unit goods after being processed to be suitable for the height requirement of loading design and the height requirement of other operation links, and finally obtains the logistics operation effect of high efficiency, low consumption, environmental protection through the collection of stacked unit goods in the subsequent process and the whole loading operation of the integrated unit goods.

The foregoing is only a preferred embodiment of the present invention, and many variations in the detailed description and the application range can be made by those skilled in the art without departing from the spirit of the present invention, and all changes that fall within the protective scope of the invention are therefore considered to be within the scope of the invention.

Claims (20)

1. A method of stacking unit loads, comprising the steps of:

s1, conveying a first tray container unit to a unit cargo stacking station, carrying out clamping on a first unit cargo on the unit cargo stacking station, lifting to a first designated position, and then moving out a first tray;

s2, on the unit goods stacking station, the first unit goods are lowered to remove lifting and clamping, and then the first unit goods are transferred from the unit goods stacking station to a reciprocating temporary storage station for temporary storage;

s3, conveying a second pallet container unit to the unit cargo stacking station, carrying out clamping on the second unit cargo on the unit cargo stacking station, lifting the second unit cargo to a second appointed position height, and then moving out of the second pallet;

s4, transferring the first unit goods from the temporary storage station to return to the unit goods stacking station; on the unit goods stacking station, the second unit goods are descended from the height of a second appointed position and correspondingly located on the top plane of the first unit goods to form stacked unit goods, and the clamp of the second unit goods is removed;

s5, transferring the stacked unit goods from the unit goods stacking station to the to-and-fro temporary storage station;

s6, conveying the stacked unit goods to the next process on the reciprocating temporary storage station; or temporarily storing the goods again on the reciprocating temporary storage station, and repeating the operation S1-S5 to stack the rest unit goods.

2. A unit cargo palletizing method as defined in claim 1, further comprising the steps of: and automatically recycling the tray.

3. A unit cargo palletizing operation system, comprising:

the stacking unit (2) is used for removing trays of the tray container units to obtain unit goods and stacking one unit goods to the top surface of the other unit goods to form stacked unit goods;

the unit goods stacking station is arranged at the stacking unit (2);

the front conveyor set (1) comprises a tray bidirectional conveying line (10) used for conveying the tray container units to the unit goods stacking station, and one end of the front conveyor set is connected with the stacking set (2);

a reciprocating temporary storage station arranged at a temporary storage transfer unit (3);

the temporary storage and transfer unit (3) comprises a conveying transfer vehicle (30) used for conveying the unit goods or the stacked unit goods to and fro between the unit goods stacking station and the temporary storage station to and fro.

4. A unit goods stacking work system according to claim 3, wherein said front conveyor set (1) further comprises an empty pallet retrieval line (11) for removing empty pallets from said unit goods stacking station, one end of said empty pallet retrieval line (11) being engaged with said stacking set (2) by said pallet bidirectional conveyor line (10).

5. The unit goods stacking work system according to claim 4, wherein the pallet bidirectional conveyor line (10) includes a roller conveyor line (100) and a chain conveyor line (101); the outer section of the tray bidirectional conveying line (10) is a roller conveying line (100), and the outer end of the roller conveying line (100) is connected with the input end of a tray packaging unit; the inner section of the tray bidirectional conveying line (10) is a chain conveying line (101), the inner end of the chain conveying line (101) is located at the unit goods stacking station, and the outer end of the chain conveying line is connected with the inner end of the roller conveying line (100).

6. The unit goods stacking work system according to claim 5, wherein said empty pallet retrieval line (11) comprises a lift-up steering transfer conveyor (110) and an empty pallet roller line (111); the jacking steering transfer conveyor (110) is provided with two connected devices, one device is arranged at the roller conveying line (100), and the other device is arranged at the empty tray roller line (111).

7. A unit load palletizing operation system according to any one of claims 3 to 6, wherein the palletizing unit (2) comprises a main stand (20) and a palletizer (21), wherein the main stand (20) is arranged at the unit load palletizing station; the stacker crane (21) is arranged on the main vertical frame (20) in a liftable manner and is used for clamping and lifting the unit goods.

8. A unit load stacking operation system according to claim 7, wherein the stacker crane (21) comprises a clamping frame (210), two-way or four-way clamps (211) for clamping the unit loads, and a lifting transmission device (212); the lifting transmission device (212) is fixedly installed on the main vertical frame (20), the output end of the lifting transmission device is fixedly connected with the clamping frame (210), and the two-direction or four-direction clamping devices (211) are installed on the clamping frame (210) in pairs in opposite directions.

9. The unit cargo stacking operation system according to claim 8, wherein the clamping frame (210) comprises an integral frame structure, a lifting connection portion (2103), wherein the lifting connection portion (2103) is fixedly mounted on the integral frame structure and is fixedly connected with the lifting transmission device (212).

10. A unit cargo palletizing operation system as in claim 9, wherein said clamping frame (210) further comprises a roller (2104), said roller (2104) being disposed outside of said integral frame structure, abutting against said main stand (20).

11. A unit load palletizing operation system as in claim 9 or 10, wherein said unitary frame structure comprises two horizontal frames (2100), a four-corner vertical bar (2101), a clamp vertical bar (2102); the two horizontal frames (2100) are fixedly connected together through the four corner vertical rods (2101), a pair of clamping plate vertical rods (2102) is arranged between every two adjacent four corner vertical rods (2101), and each pair of clamping plate vertical rods (2102) is arranged opposite to the other pair of clamping plate vertical rods (2102).

12. The unit cargo stacking operation system according to claim 8, wherein the four-way clasping device (211) comprises a four-way clasping plate (2110) and a clasping power device (2112), wherein a fixed end of the clasping power device (2112) is arranged on the clasping frame (210), and a telescopic end of the clasping power device (2112) acts on the four-way clasping plate (2110).

13. The unit load stacking operation system as claimed in claim 12, wherein said four-way clamp (211) further comprises a clamp fork (2111), said clamp fork (2111) being telescopically arranged between said four-way clamp plate (2110) and said corresponding clamp plate stem (2102).

14. The unit goods stacking operation system according to claim 13, wherein the double upper fork ends of the clamping fork (2111) are fixedly hinged to the upper portions of the four-way clamping plate (2110) and the clamping plate vertical bar (2102), respectively, and the double lower fork ends of the clamping fork (2111) are slidably hinged to the lower portions of the four-way clamping plate (2110) and the clamping plate vertical bar (2102), respectively; the telescopic end of the holding power (2112) is arranged on the holding fork frame (2111).

15. The unit cargo palletizing operation system as claimed in claim 14, wherein the four-way clasps (211) further comprise elastic panels, and the elastic panels are laid on the operation surface of the four-way clasps (2110).

16. The unit cargo palletizing operation system according to claim 8, wherein the lifting transmission device (212) comprises a lifting power (2120), a transmission shaft (2121), a lifting chain wheel (2122) and a lifting chain (2123), wherein the lifting power (2120) is fixedly installed on the main vertical frame (20); the lifting chain wheels (2122) are correspondingly and fixedly arranged at the upper part and the lower part of the four main vertical frames (20); one end of the transmission shaft (2121) is connected with an output shaft of the lifting power (2120), and the other end of the transmission shaft is connected with the lifting chain wheel (2122); the lifting chain (2123) is wound on the lifting chain wheel (2122), and two ends of the lifting chain are fixedly connected with the holding frame (210).

17. The unit goods palletizing operation system according to claim 3, wherein the temporary storage and transfer unit (3) further comprises a conveying and transfer vehicle slide rail (31), the reciprocating temporary storage station is arranged at an inner section of the conveying and transfer vehicle slide rail (31), and an outer section of the conveying and transfer vehicle slide rail (31) is arranged at the unit goods palletizing station; the conveying transfer cart (30) is slidably arranged on the conveying transfer cart sliding rail (31) and moves back and forth between the back and forth temporary storage station and the unit goods stacking station.

18. The unit load stacking operation system according to claim 3 or 17, wherein the conveying transfer cart (30) comprises a transfer cart body (300), a flat-top chain conveying device (301) and a flat-top chain transmission device (302), wherein the flat-top chain conveying device (301) is sleeved on the flat-top chain transmission device (302) and is laid on the upper surface of the transfer cart body (300), and the conveying direction of the flat-top chain conveying device (301) is the same as the moving direction of the conveying transfer cart (30).

19. The unit cargo stacking work system according to claim 17, wherein the temporary storage and transfer unit (3) further comprises an integrated frame (32), and the transport transfer cart slide rail (31) and the front conveyor unit (1) are laid on the integrated frame (32).

20. An operation method of a unit cargo stacking operation system is characterized in that the unit cargo stacking operation system comprises the following steps:

the stacking unit (2) is used for removing trays of the tray container units to obtain unit goods and stacking one unit goods to the top surface of the other unit goods to form stacked unit goods;

the unit goods stacking station is arranged at the stacking unit (2);

the front conveyor set (1) comprises a bidirectional pallet conveying line (10) for conveying pallet container units to the unit goods stacking station, and one end of the bidirectional pallet conveying line is connected with the stacking set (2);

the reciprocating temporary storage station is arranged at the temporary storage transfer unit (3);

the temporary storage and transfer unit (3) comprises a conveying and transfer vehicle (30) which is used for conveying the unit goods or the stacked unit goods to and fro between the unit goods stacking station and the reciprocating temporary storage station;

the operation method comprises the following steps:

p1, conveying a first pallet container unit to the unit cargo stacking station through the front conveyor unit (1), clamping first unit cargo of the first pallet container unit on the unit cargo stacking station by using the stacking unit (2), lifting the first unit cargo to a first designated position, then moving the first pallet out, and simultaneously moving the conveying and moving vehicle (30) to the unit cargo stacking station;

p2, on the unit goods stacking station, the stacking unit (2) is used for lowering and lifting the first unit goods, so that the first unit goods are placed on the conveying transfer cart (30) and then the clasping is removed, and then the conveying transfer cart (30) is used for transferring the first unit goods from the unit goods stacking station to the reciprocating temporary storage station for temporary storage;

p3, conveying a second pallet assembly unit to the unit cargo stacking station through the front conveyor unit (1), utilizing the stacking unit (2) to clamp the second unit cargo of the second pallet assembly unit on the unit cargo stacking station, lifting to a second designated position height, and then moving out a second pallet; transferring the conveying transfer cart (30) carrying the first unit goods from the reciprocating temporary storage station to return to the unit goods stacking station;

p4, on the unit goods stacking station, the second unit goods are descended from the second appointed position in height and correspondingly located on the top plane of the first unit goods on the conveying transfer vehicle (30) to form stacked unit goods, and the second unit goods are unclamped;

p5, transferring a conveying transfer vehicle (30) carrying the stacked unit goods from the unit goods stacking station to the to-and-fro temporary storage station;

p6, conveying stacked unit goods to the next process on the reciprocating temporary storage station; or temporarily storing the goods again on the reciprocating temporary storage station, and repeating the steps P1-P5 to stack the rest unit goods.

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