Automatic cargo unloading device and automatic cargo unloading machine

Abstract

The present invention discloses an automatic cargo unloading device and an automatic unloading machine, which comprises a horizontal conveying platform, an automatic flipping unloading component and an auxiliary adsorption translation mechanism; the automatic flipping unloading component comprises a fixed seat connected to the front end of the unloading platform, a driving roller and a front roller, a front unloading roller is installed on the front roller, an auxiliary unloading roller is fixedly installed on the driving roller, and the corresponding ends of the driving roller and the front roller are fixedly connected through a swing arm; a swinging driving wheel is installed on the core shaft of the driving roller, and the front unloading roller and the auxiliary unloading roller are arranged to rotate synchronously through a winding member; the surfaces of the front unloading roller and the auxiliary unloading roller are both provided with friction protrusions; the auxiliary adsorption translation mechanism adsorbs the cargo to be unloaded, and the continuous upward rotation and flipping of the front unloading roller of the automatic flipping unloading component pries the cargo and transports it to the horizontal conveying platform. The automatic cargo unloading device has a simple structure and is convenient to use. It can effectively adjust the center of gravity of the cargo during unloading, and the unloading is stable and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of container loading and unloading equipment, and in particular to an automatic cargo unloading device and an automatic unloading machine. Background Art

[0002] At present, with the rapid development of science and technology, the degree of automation in various industries is gradually increasing, especially in the logistics industry. Under the multi-faceted demands of improving transportation efficiency, reducing logistics costs and improving logistics safety, container cargo loading and unloading has rapidly developed towards automated operations, reducing manual participation, and a variety of automatic container cargo loading and unloading devices have appeared on the market. In addition, the cold chain logistics and transportation industry has higher requirements and more urgent needs for automated cargo loading and unloading.

[0003] However, the automatic container unloading machines currently on the market mainly use a retractable mechanical arm equipped with a suction cup to absorb the adsorbed goods onto the conveyor belt, thereby unloading the goods in batches. However, due to the limited adsorption force of the suction cup, the goods are easy to fall off the suction cup during the unloading process, resulting in low unloading efficiency, and it is not suitable for heavier goods. In addition, the applicant disclosed an automatic unloading roller for container loading and unloading machines in the patent with publication number CN216807341U, which drives the front roller to rotate by a motor, thereby driving the shovel hook on the front roller to rotate clockwise and successively move the contacted goods upward, thereby prying up the goods and gradually lifting the bottom of the goods off the ground. However, during the use of the unloading roller, there is a problem that the center of gravity of the goods is unstable during the prying process, and it is easy to tip over, affecting the unloading efficiency.

[0004] Therefore, the prior art needs to be further developed. Summary of the invention

[0005] In view of the problems of low working efficiency, unstable center of gravity of cargo and easy tipping over of the above-mentioned existing automatic unloading machines, the present invention provides an automatic cargo unloading device. The automatic cargo unloading device has a simple structure and is easy to use. A row of automatic flipping unloading components is arranged at the front end of the horizontal conveying platform to effectively adjust the center of gravity of the cargo during unloading, thereby greatly improving the unloading efficiency and performing efficient batch unloading of cargo in the container.

[0006] The present invention provides the following technical solutions:

[0007] An automatic cargo unloading device comprises a horizontal conveying platform, a row of automatic flipping unloading components fixedly arranged at the front end of the horizontal conveying platform, and an auxiliary adsorption translation mechanism connected to the front side of the cargo with a suction cup arranged at the front end of the horizontal conveying platform in a forward and backward sliding manner; the length of the swing arm of the automatic flipping unloading components arranged side by side gradually increases along the direction from one end of the horizontal conveying platform to the other end;

[0008] The automatic flipping unloading assembly includes a fixed seat for connecting to the front end of the unloading platform, a driving roller connected to the fixed seat, and a front roller connected in parallel in front of the driving roller, a front unloading roller is fixedly installed on the front roller, an auxiliary unloading roller is fixedly installed on the driving roller, and the corresponding ends of the driving roller and the front roller are fixedly connected by a swing arm; a swinging active wheel for transmission connection with the first driving mechanism is installed on the core shaft of the driving roller, and the front unloading roller and the auxiliary unloading roller are arranged to rotate synchronously through a winding member; friction protrusions are arranged on the surfaces of the front unloading roller and the auxiliary unloading roller; the auxiliary adsorption and translation mechanism adsorbs the goods to be unloaded, and the continuous upward rotation and flipping of the front unloading roller of the automatic flipping unloading assembly pries the goods up and transports them to the horizontal conveying platform.

[0009] Preferably, in the automatic cargo unloading device, the horizontal conveying platform includes a first conveying area and a second conveying area connected to the discharge side of the first conveying area; the rear end of the second conveying area is set as the discharge end; the cargo transportation direction of the first conveying area is perpendicular to the unloading direction of the automatic flip unloading component, and the cargo transportation direction of the second conveying area is consistent with the unloading direction of the automatic flip unloading component.

[0010] During unloading, the first conveying area transports the goods from the front that are automatically turned over and unloaded to the left to the second conveying area, and the second conveying area transports the goods from the front that are automatically turned over and unloaded directly to the discharge end at the rear, and then also transports the goods from the first conveying area to the discharge end.

[0011] Preferably, the length of the swing arm of the automatic overturning and unloading assembly gradually increases in the direction from the first conveying area to the second conveying area.

[0012] Preferably, in the automatic cargo unloading device, the first conveying area is provided with a first conveying roller group composed of a plurality of first rollers arranged in parallel and moving in the same direction and synchronously; the second conveying area is provided with a second conveying roller group composed of a plurality of second rollers arranged in parallel and moving in the same direction and synchronously.

[0013] Preferably, in the automatic cargo unloading device, a limiting roller is arranged along the outer side of the second conveying area away from the first conveying area, the limiting roller is arranged parallel to the first roller, and the rotation direction of the limiting roller is opposite to that of the first roller.

[0014] Preferably, the limiting roller is a roller whose two ends extend to the two ends of the first conveying area respectively, or a row of rollers arranged front to back; the limiting rollers are arranged in at least one row.

[0015] Preferably, in the automatic cargo unloading device, the auxiliary adsorption translation mechanism includes a horizontal guide rail arranged along the unloading direction, a base slidably arranged on the horizontal guide rail, a suction cup fixing frame arranged on the base, and a plurality of suction cups horizontally distributed along the suction cup fixing frame; a third driving mechanism drives the base to move along the horizontal guide rail until the suction cup is adsorbed to the cargo surface under the action of the front unloading roller.

[0016] Preferably, the automatic cargo unloading device further comprises a sliding fixed-point cargo unloading mechanism fixed above the auxiliary adsorption translation mechanism, the sliding fixed-point cargo unloading mechanism comprising a horizontal fixed frame, a cargo unloading assembly connected to the horizontal fixed frame by sliding left and right, and a sliding drive assembly driving the cargo unloading assembly to slide left and right, a horizontal drive shaft with a non-circular cross-section for driving connection with a transmission mechanism is fixedly arranged on the horizontal fixed frame, and the horizontal drive shaft is parallel to the sliding track of the sliding drive assembly; the cargo unloading assembly comprises a sliding sleeve and at least one group of forearm plates fixed in front of the sliding sleeve and perpendicular to the horizontal drive shaft, the horizontal drive shaft penetrates and connects the base of the proximal sliding sleeve of the forearm plate through a bearing, and a driving sprocket is fixedly installed on the horizontal drive shaft; an upper roller is installed between the distal ends of the two forearm plates away from the sliding sleeve, an upper unloading roller is fixed on the upper roller, a passive sprocket connected to the driving sprocket for transmission is arranged on the upper roller, and friction protrusions are arranged on the surface of the upper unloading roller; the horizontal drive shaft rotates under the driving action of the transmission mechanism and drives the upper unloading roller on the upper roller to rotate through the connected active sprocket and passive sprocket.

[0017] In an optional embodiment, the sliding drive assembly is a rodless cylinder fixedly mounted on a horizontal fixed frame, the sliding sleeve of the cargo unloading assembly is slidably connected to the cylinder tube of the rodless cylinder, and the horizontal drive shaft is located in front of the cylinder tube of the rodless cylinder and parallel to it.

[0018] Optionally in another embodiment, the sliding drive assembly includes: a slideway parallel to the horizontal drive shaft and slidably connected to the bottom of the sleeve, a chain fixedly connected to the cargo unloading assembly, a sprocket group meshing with the chain, and a third drive motor driving the sprocket group to move, and the slideway is fixed on a horizontal fixed frame; the third drive motor drives the chain to drive the cargo unloading assembly to slide left and right along the slideway.

[0019] Preferably, a driving sprocket is fixedly mounted on the horizontal drive shaft, and a passive sprocket is provided on the upper roller shaft which is transmission-connected to the driving sprocket. The horizontal drive shaft rotates under the driving action of the transmission mechanism and drives the upper unloading roller on the upper roller shaft to rotate through the connected driving sprocket and passive sprocket.

[0020] The present invention also provides an automatic unloading machine equipped with the aforementioned automatic cargo unloading device, wherein the horizontal conveying platform is connected to a traveling trolley through a lifting mechanism; the upper end of a middle belt transmission mechanism is connected to the horizontal conveying platform, and the lower end of the middle belt transmission mechanism extends to the lower part of the traveling trolley.

[0021] Preferably, in the automatic unloading machine, the lifting mechanism includes: a lifting arm base arranged on the walking trolley, a lifting swing arm connected to the lifting arm base, and a first power mechanism for driving the lifting swing arm to swing and lift; the lower end of the lifting swing arm is hinged on the lifting arm base, and the upper end of the lifting swing arm is connected to the horizontal conveying platform; the swinging of the lifting swing arm will drive the horizontal conveying platform to lift and lower.

[0022] Optionally, the power mechanism is a hydraulic cylinder, the bottom of which is fixed on a hydraulic cylinder fixing seat, and the outer end of the telescopic rod of the hydraulic cylinder is hinged to the middle or lower middle part of the lifting swing arm. The lifting swing arm is controlled to swing within a certain range by telescoping the telescopic rod of the hydraulic cylinder.

[0023] Preferably, in the automatic unloading machine, the bottom bracket of the middle belt transmission mechanism is also hinged to the lifting arm base, the top bracket of the middle belt transmission mechanism is hinged to the horizontal conveying platform, and the middle belt transmission mechanism swings synchronously with the swinging action of the lifting swing arm.

[0024] Preferably, in the automatic unloading machine, the bottom of the lifting mechanism is slidably connected to the frame of the traveling trolley through a second horizontal sliding mechanism; the second horizontal sliding mechanism includes a second slide rail fixed on the frame of the traveling trolley, a sliding base with a pulley group at the bottom and a second power mechanism driving the sliding base to slide along the second slide rail, and the sliding wheel group is slidably matched with the second slide rail.

[0025] Optionally, the second power mechanism is a horizontal hydraulic cylinder or a pneumatic cylinder.

[0026] Preferably, in the automatic unloader, a bottom belt transmission mechanism for receiving goods from a middle belt transmission mechanism is fixedly provided at the lower part of the walking vehicle, and the lower end of the middle belt transmission mechanism extends to the top of the bottom belt transmission mechanism.

[0027] Preferably, in the automatic unloading machine, the middle part of the rear end of the horizontal conveying platform is hinged to the front end of the lifting swing arm, and a horizontal conveying platform rotating mechanism is arranged on the lifting mechanism. The horizontal conveying platform rotating mechanism includes a tilting cylinder whose bottom is hinged to the base of the lifting arm and a connecting rod assembly connected to the telescopic rod of the tilting cylinder; the front end of the connecting rod assembly is directly or indirectly connected to the upper side or the lower side of the rear end of the horizontal conveying platform; the tilting cylinder drives the horizontal conveying platform to rotate through the connecting rod assembly, thereby adjusting the posture of the horizontal conveying platform.

[0028] Optionally, the connecting rod assembly is composed of one or more connected connecting rods or connecting plates.

[0029] Preferably, in the automatic unloading machine, the upper end of the long rod is connected to the horizontal conveying platform through an ear plate, the middle part of the ear plate is pivotally connected to the horizontal conveying platform through a connecting shaft, the upper and lower ends of the front side of the ear plate away from the connecting shaft are connected to the horizontal conveying platform, and the rear end of the ear plate away from the connecting shaft is connected to the connecting rod assembly.

[0030] The automatic cargo unloading device and automatic cargo unloading machine provided by the present invention have the following beneficial effects:

[0031] 1. The automatic flip unloading component has a simple structure and is easy to use. Through the dual effects of the continuous upward friction force of the front unloading roller and the upward swing force of the front roller, the goods are smoothly pried up and gradually transferred to the unloading platform to achieve unloading of the goods. This component effectively adjusts the center of gravity of the goods during unloading and greatly improves the unloading efficiency.

[0032] The auxiliary adsorption translation mechanism, when the front unloading roller contacts and gradually pries up the goods, the suction cup arranged on it exerts a certain adsorption force on the goods, so that the center of gravity of the goods is kept at the front end during the transfer to the front unloading roller, thereby further improving the stability of the goods unloading, avoiding the accidental tipping over or overturning of the goods, and improving the unloading efficiency.

[0033] 2. The sliding fixed-point cargo unloading mechanism has a simple structure and high flexibility. Through the ingenious cooperation of the rodless cylinder and the cargo unloading assembly, the cargo unloading assembly can slide to the front of the improperly placed cargo as needed, and the upper unloading roller of the upper roller is driven by the active drive shaft, thereby realizing the unloading of the fixed-point cargo.

[0034] 3. The automatic cargo unloading device has an ingenious structure and diverse functions. It can not only deal with improperly placed cargo in a targeted manner, but also efficiently unload the remaining neatly placed cargo in batches through the automatic flipping unloading assembly; it takes into account both work flexibility and high efficiency, has a wide range of applications, and high work efficiency.

[0035] 4. The automatic unloader has various functions and a high degree of automation. The lifting mechanism is used to control the lifting of the horizontal conveying platform. The second horizontal sliding mechanism at the bottom of the lifting mechanism is provided to achieve more precise front and rear displacement control of the horizontal conveying platform. The horizontal conveying platform rotating mechanism is provided to achieve angle adjustment of the horizontal conveying platform so that its posture meets working requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the automatic cargo unloading device of Example 1;

[0037] Figure 2 It is a schematic diagram of the three-dimensional structure of the automatic flipping and unloading assembly in Example 1;

[0038] Figure 3 It is a schematic diagram of the side structure of the automatic flipping and unloading assembly in Example 1;

[0039] Figure 4 It is a schematic diagram of the exploded structure of the driving roller;

[0040] Figure 5 It is a schematic diagram of the side structure of the automatic cargo unloading device of Example 1;

[0041] Figure 6 This is a schematic diagram of the workflow of batch unloading of the automatic cargo unloading device in Example 1;

[0042] Figure 7 Schematic diagram of cargo placement in containers. The cargo in A is placed very neatly, while the cargo in B is rather messy.

[0043] Figure 8 It is a schematic diagram of the three-dimensional structure of the automatic cargo unloading device of Example 2;

[0044] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sliding fixed-point cargo unloading mechanism in Example 2;

[0045] Fig.10 It is a schematic diagram of the upward-looking three-dimensional structure of the sliding fixed-point cargo unloading mechanism (the auxiliary adsorption translation mechanism is omitted);

[0046] Fig.11 It is a schematic diagram of the side structure of the automatic cargo unloading device of Example 2;

[0047] Fig.12 This is a schematic diagram of the working process of the sliding fixed-point cargo unloading mechanism in the automatic cargo unloading device of Example 2;

[0048] Fig.13 It is a schematic diagram of the three-dimensional structure of the automatic unloading machine of Example 3;

[0049] Fig.14 It is a schematic diagram of the left side structure of the automatic unloader of Example 3;

[0050] Fig.15 It is a schematic diagram of the right side structure of the automatic unloader of Example 3;

[0051] Fig.16 It is a three-dimensional structural schematic diagram of a sliding fixed-point cargo unloading mechanism in another embodiment;

[0052] The reference numerals are described as follows:

[0053] Automatic flip unloading assembly F, fixed seat 1, driving roller 2, auxiliary unloading roller 21, rotating driving wheel 22, core shaft 2a, roller 2b, front roller 3, front unloading roller 31, rotating driven wheel 32, swing arm 4, swing driving wheel 5, gear part 51, connecting part 52, clamping hole 521, spiral belt protrusion 61, friction belt 62;

[0054] Horizontal conveying platform 7, first conveying area 71, second conveying area 72, discharging end 72a, first roller 711, second roller 721, limiting roller 722; auxiliary adsorption translation mechanism 8, horizontal guide rail 81, base 82, suction cup fixing frame 83, lower suction cup fixing frame 831, upper suction cup fixing frame 832, suction cup 84;

[0055] Sliding fixed-point cargo unloading mechanism D, horizontal fixed frame D1, cylinder tube D2, sliding sleeve D3, front arm plate D41, driving sprocket D42, horizontal driving shaft D5, upper roller D53, upper unloading roller D52, driven sprocket D51, friction protrusion; first driving motor D6, first transmission wheel D61, second transmission wheel D62; first sliding mechanism D7, first slide rail D71, first slider D72, second driving motor D9; fourth gear D91, rack D92;

[0056] Lifting mechanism J, lifting arm base J1, lifting swing arm J2, first power mechanism J3; walking trolley C, middle belt transmission mechanism P1, bottom belt transmission mechanism P2, second horizontal sliding mechanism E, second slide rail E1, sliding base E2, second power mechanism E3; horizontal conveying platform rotation mechanism X, tilting cylinder X1, connecting rod assembly X2, long rod X21, triangular connecting plate X22, ear plate X3. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements between them. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements between them. The terms used in this specification to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present invention. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0058] Example 1

[0059] like Figures 1 to 5 As shown, this embodiment provides an automatic cargo unloading device, which includes a horizontal conveying platform 7, a row of automatic flip unloading components F fixedly arranged at the front end of the horizontal conveying platform, and an auxiliary adsorption translation mechanism 8. The auxiliary adsorption translation mechanism is connected to the horizontal conveying platform by sliding forward and backward, and is used to adsorb the front side of the cargo acted by the automatic flip unloading mechanism, so as to assist the automatic flip unloading mechanism to complete cargo unloading more smoothly.

[0060] In order to realize the unloading of goods, the automatic flipping unloading component is configured as follows: it includes a fixed seat 1 for connecting to the front end of the unloading platform, a driving roller 2 connected to the fixed seat, and a front roller 3 connected in parallel in front of the driving roller, a front unloading roller 31 is fixedly installed on the front roller, an auxiliary unloading roller 21 is fixedly installed on the driving roller, the corresponding ends of the driving roller and the front roller are fixedly connected by a swing arm 4, and the rotation of the driving roller will drive the front roller to swing.

[0061] In this embodiment, Figure 4 As shown, the driving roller 2 includes a core shaft 2a located in the center and a roller 2b rotatably connected to the core shaft 2a, and both ends of the core shaft extend outside the roller to form a connecting section for fixing the driving roller to other structures.

[0062] In order to realize the transmission of the driving roller, a swing driving wheel 5 for transmission connection with the first driving mechanism is fixedly installed on the core shaft of the driving roller 2, and the first driving mechanism drives the driving roller to rotate through the swing driving wheel; in order to realize the synchronous rolling of the front unloading roller and the auxiliary unloading roller, the front unloading roller and the auxiliary unloading roller are arranged to rotate synchronously through a winding member (synchronous belt or chain); the surfaces of the front unloading roller and the auxiliary unloading roller are provided with friction protrusions. The second driving mechanism drives the front unloading roller and the auxiliary unloading roller to rotate through the connected winding member.

[0063] The working principle is:

[0064] When the front unloading roller contacts and gradually pries up the cargo, the suction cup of the auxiliary adsorption translation mechanism adsorbs the front side of the cargo, which not only assists the transportation of the cargo, but also keeps the center of gravity of the cargo at the front end, further improving the stability of cargo unloading, avoiding accidents of cargo tipping over or overturning, and improving unloading efficiency.

[0065] After the goods are loaded and unloaded onto the horizontal conveying platform 7, the auxiliary adsorption translation mechanism 8 quickly moves back to the initial position away from the working position, so that the goods are transported to other areas on the horizontal conveying platform, completing the unloading of the goods once; then, the auxiliary adsorption translation mechanism repeats the previous process again, and cooperates with the automatic flipping unloading mechanism to complete the unloading of another batch of goods.

[0066] Since the height and angle of the cargo vary within a certain range during the unloading process, preferably, the suction cup is a swing-type vacuum suction cup with a certain degree of swing freedom, which can better meet the dynamic coordination with the cargo.

[0067] The auxiliary adsorption translation mechanism adsorbs the goods to be unloaded, and the rotation of the swing driving wheel of the automatic flip unloading assembly drives the front roller at the outer end of the swing arm to swing upward. At the same time, the front unloading roller and the auxiliary unloading roller continue to roll under the transmission of the winding part driven to rotate by external force, and the goods are pried up and unloaded by applying upward friction force to the surface of the goods, and the goods are moved to the horizontal conveying platform.

[0068] In this embodiment, the automatic flip unloading assembly F is arranged in parallel at the front end of the horizontal conveying platform, and the length of the swing arm 4 of the automatic flip unloading assembly from one end to the other end of the horizontal conveying platform gradually increases. As the shorter the swing arm, the earliest the automatic flip unloading assembly contacts and unloads the goods. Therefore, a row of automatic flip unloading assemblies with successively longer swing arms successively unload a row of goods to the horizontal conveying platform in order, and these goods are automatically transported away in order, with high transportation efficiency, and there will be no problem of goods being concentrated and piled up somewhere on the horizontal conveying platform due to untimely transportation of goods.

[0069] The following is a detailed description of the further optimization solutions for each mechanism or component:

[0070] Automatic flip unloading components

[0071] In this embodiment, specifically, a rotating driving wheel 22 for transmission connection with the second driving mechanism is fixedly provided on the roller portion of the driving roller 2, and a rotating driven wheel 32 is correspondingly fixedly provided on the front roller 3. Both the rotating driven wheel and the rotating driving wheel are gears, and the two are transmission connected by a chain. In other embodiments, both the rotating driven wheel and the rotating driving wheel are synchronous pulleys, and the transmission connection is performed by a synchronous belt.

[0072] The second driving mechanism acts directly or indirectly on the rotating driving wheel 22 and the rotating driven wheel 32 through a winding chain or a transmission belt, thereby driving the front unloading roller 31 and the auxiliary unloading roller 21 to rotate synchronously, and the friction force between the surfaces of these two rollers and the surface of the goods is used to pry up the goods and transmit them to the rear.

[0073] Preferably, the front unloading roller is one or more coaxially arranged, and the auxiliary unloading roller is correspondingly one or more coaxially arranged. To reduce costs, the number of the rotating driving wheel 22 is one, which is arranged in the middle of the driving roller; or, to ensure transmission efficiency, the number of the rotating driving wheel 22 is multiple, which are evenly arranged on the driving roller; the position setting of the rotating driven wheel 32 is consistent with the rotating driving wheel, and no further description is given.

[0074] In this embodiment, the swing driving wheel 5 includes a gear portion 51 and a connecting portion 52 extending from the side of the gear portion, a clamping hole 521 is provided on the connecting portion 52, and a clamping portion 23 for plugging and matching with the clamping hole is provided at the end of the core shaft of the driving roller. Through the plug-in matching between the swing driving wheel 5 and the driving roller 2, the rotation of the swing driving wheel can smoothly drive the driving roller to rotate, thereby driving the swing arm to swing.

[0075] In this embodiment, the cross section of the clamping hole is hexagonal, and the clamping portion is hexagonal. In other embodiments, the cross section of the clamping hole can also be any other shape except circular. On this basis, the swing driving wheel can be configured to be connected to one driving roller on each of the left and right sides at the same time, thereby reducing the number of swing driving wheels.

[0076] In other embodiments, the swing driving wheel 5 may also be fixedly connected to the driving roller in other ways, such as by pin connection or key connection.

[0077] In order to enhance the stability of the structure, preferably, a reinforcing rod 9 is fixedly connected between the two swing arms 4 , and the reinforcing rod is located between the front unloading roller 31 and the auxiliary unloading roller 21 .

[0078] Preferably, the friction protrusions on the surface of the front unloading roller and the auxiliary unloading roller are spiral belt protrusions 61 distributed in a spiral shape along the outer circumference of the roller; or, the friction protrusions are friction belts 62 extending outwardly along the outer circumference and parallel to the central axis. In other embodiments, the friction protrusions are nail-shaped protrusions, figure-eight strip protrusions, etc.

[0079] Preferably, the friction protrusions of the front discharge roller 31 and the auxiliary discharge roller are made of rubber, or the entirety of the front discharge roller 31 and the auxiliary discharge roller is made of rubber. The front discharge roller is integrated with the front roller shaft, and the auxiliary discharge roller is integrated with the driving roller shaft, such as adding a layer of rubber material to the surface of the two rollers (such as the front discharge roller or the auxiliary discharge roller) through a rubber vulcanization process. In other embodiments, the front discharge roller and the front roller shaft, and the auxiliary discharge roller and the driving roller shaft can also be fixedly connected by other methods (such as bonding, etc.).

[0080] The specific working process of the above automatic flipping unloading component is as follows:

[0081] Before work, the automatic flip unloading assembly is installed at the front end of the unloading platform, and the first drive mechanism and the second drive mechanism are respectively connected to the assembly by transmission. During work, the first drive mechanism drives the swing driving wheel 2 to rotate, thereby driving the front roller 3 at the outer end of the swing arm to swing upward. At the same time, the second drive mechanism drives the front unloading roller 31 and the auxiliary unloading roller 21 to roll through the winding member; at the same time, the unloading platform continues to move in the direction of the cargo in the container. In this process, the friction protrusions on the surface of the front unloading roller continuously apply an upward force to the surface of the cargo in contact during the rotation process, so that the bottom of the cargo gradually leaves the ground and moves to the front unloading roller and moves to the auxiliary unloading roller. Subsequently, under the action of the auxiliary unloading roller, the cargo moves to the unloading platform more quickly. In the above process, the upward swing of the front unloading roller adjusts the center of gravity of the cargo to the conveying direction more quickly, greatly reducing the probability of the cargo flipping backward. After completing one unloading, the front roller swings back to the starting position to start the next work.

[0082] It can be seen that under the dual effects of the continuous upward friction force between the roller surface of the front unloading roller and the surface of the cargo and the upward swinging force of the front roller, the cargo is smoothly pried up and gradually transferred to the conveying structure (such as a conveyor belt) of the unloading platform, completing an unloading process.

[0083] Horizontal conveying platform

[0084] In the automatic cargo unloading device of this embodiment, Figure 1 and Figure 8As shown, the horizontal conveying platform 7 includes a first conveying area 71 and a second conveying area 72 arranged side by side, and the second conveying area is connected to the discharge side of the first conveying area. The rear end of the second conveying area is set as a discharge end 72a; the cargo transportation direction of the first conveying area 71 is perpendicular to the discharge direction of the automatic flip unloading component, and the cargo transportation direction of the second conveying area is consistent with the discharge direction of the automatic flip unloading component.

[0085] During unloading, the first conveying area 71 transports the goods from the front that are automatically turned over and unloaded to the left to the second conveying area 72, and the second conveying area transports the goods from the front that are automatically turned over and unloaded directly to the discharge end 72a at the rear, and then also transports the goods from the first conveying area 71 to the discharge end.

[0086] Preferably, the length of the swing arm 4 of the automatic overturning unloading assembly gradually increases in the direction from the first conveying area to the second conveying area.

[0087] By gradually lengthening the swing arm of the automatic flip unloading assembly and coordinating with the transfer zone, a row of cargo to be unloaded in the container can be unloaded and transported to the discharge end 72a in an orderly manner for subsequent cargo transportation.

[0088] In this embodiment, the first conveying area is provided with a first conveying roller group consisting of multiple parallel first rollers 711 that move in the same direction and synchronously; the second conveying area is provided with a second conveying roller group consisting of multiple parallel second rollers 721 that move in the same direction and synchronously.

[0089] In other embodiments, the first conveying area and the second conveying area adopt a conveyor belt structure.

[0090] In order to prevent the goods from moving out of the edge of the second conveying area due to inertia when moving from the first conveying area to the second conveying area, the following settings are made: a limiting roller 722 is set along the outer side of the second conveying area away from the first conveying area, the limiting roller is set parallel to the first roller 711, and the rotation direction of the limiting roller is opposite to the direction of the first roller 711.

[0091] To simplify the structure, in this embodiment, the limiting roller 722 is a roller with two ends extending to the two ends of the first conveying area. In other embodiments, a row of rollers are arranged front to back. In some embodiments, the limiting rollers are arranged in multiple rows.

[0092] Auxiliary adsorption translation mechanism

[0093] In this embodiment, Figure 1 and Figure 5As shown, the auxiliary adsorption translation mechanism 8 includes a horizontal guide rail 81 arranged along the unloading direction, a base 82 slidably arranged on the horizontal guide rail, a suction cup fixing frame 83 arranged on the base, and a plurality of suction cups 84 horizontally distributed along the suction cup fixing frame; a third driving mechanism drives the base to move along the horizontal guide rail until the suction cup is adsorbed to the surface of the goods acted on by the front unloading roller 31. The third driving mechanism is a motor.

[0094] On the basis of the above, in order to expand the application scope of the suction cup fixing frame without increasing its structural volume, the following configuration is performed: the suction cup fixing frame 83 includes a lower suction cup fixing frame 831 directly fixed on the base, an upper suction cup fixing frame 832 overlapped and slidably arranged on the lower suction cup fixing frame, and a fourth driving mechanism for driving the upper suction cup fixing frame to extend. The upper suction cup fixing frame slides along the axial direction of the lower suction cup fixing frame under the action of the fourth driving mechanism to expand or retract. The fourth driving mechanism is a cylinder or a hydraulic cylinder.

[0095] Preferably, the unfolded upper suction cup fixing frame and the lower suction cup fixing frame cover the entire width of the horizontal conveying platform. In this embodiment, the horizontal guide rail 81 is arranged in the first conveying area, and the unfolded upper suction cup fixing frame 832 can cover the entire second conveying area, so that the auxiliary adsorption translation mechanism acts on the entire horizontal conveying platform. In other embodiments, the width of the upper suction cup fixing frame and the lower suction cup fixing frame can be reasonably set according to the use requirements.

[0096] Example 2

[0097] Since the automatic cargo unloading device of embodiment 1 is suitable for handling neatly arranged cargo H1 (such as Figure 7 A), the bottom of each row of cargo is on the same reference plane, so that it is easy to be unloaded synchronously by the front unloading roller of the automatic flip unloading assembly. Therefore, the automatic cargo unloading device of Example 1 has high requirements for the neatness of cargo discharge in the container. However, in actual situations, there are always a small amount of cargo H2 in the container that changes position due to improper placement or bumps during transportation, and its bottom is not on the same reference plane as other cargo in the same row (such as Figure 7 B), and the automatic flipping unloading assembly in Example 1 is difficult to handle such improperly placed goods. Therefore, this embodiment provides the following further improved automatic unloading device for goods.

[0098] On the basis of Example 1, the automatic cargo unloading device provided in this embodiment is additionally provided with a sliding fixed-point cargo unloading mechanism D, which is fixed on the auxiliary adsorption translation mechanism 8 and slides back and forth on the horizontal conveying platform along with the suction cup fixing frame.

[0099] In this embodiment, the attached Figure 8-12Take the structure as an example, the sliding fixed-point cargo unloading mechanism includes a horizontal fixed frame D1, a cargo unloading component slidably connected to the horizontal fixed frame, and a sliding drive component driving the cargo unloading component to slide left and right, and a horizontal drive shaft D5 with a non-circular cross-section is fixedly arranged on the horizontal fixed frame for driving connection with the transmission mechanism, and the horizontal drive shaft is parallel to the sliding track of the sliding drive component.

[0100] The cargo unloading assembly includes a sleeve D3 slidably connected to a horizontal fixed frame and at least one group of front arm plates D41 fixed in front of the sleeve and perpendicular to the horizontal drive shaft. The base of the front arm plate near the sleeve is installed on the horizontal drive shaft through a bearing, and a driving sprocket D42 is fixedly installed on the horizontal drive shaft; an upper roller D53 is installed between the far ends of the two front arm plates away from the sleeve, and an upper unloading roller D52 is fixed on the upper roller. A passive sprocket D51 is provided on the upper roller for transmission connection with the driving sprocket, and friction protrusions are provided on the surface of the upper unloading roller. The horizontal drive shaft rotates under the driving action of the transmission mechanism and drives the upper unloading roller on the upper roller to rotate through the connected driving sprocket and the passive sprocket.

[0101] The above arrangement enables the horizontal drive shaft D5 to be connected to the upper roller and the upper unloading roller. The outer diameter of the upper unloading roller D52 is larger than the outer diameter of the passive sprocket D51, so that the rotation of the passive wheel will not affect the work of the upper unloading roller. The sliding drive assembly drives the cargo unloading assembly to slide left and right on the horizontal fixed frame.

[0102] In the present invention, the sliding drive assembly can adopt various transmission mechanisms for realizing linear motion, such as using a cylinder, a hydraulic cylinder, a rodless cylinder for transmission, and can also adopt a gear rack linear transmission mechanism, a chain transmission mechanism, a transmission belt transmission mechanism, etc. This embodiment is described by taking a rodless cylinder as an example, but the protection scope of the present invention is not limited to the embodiment.

[0103] Specifically, in this embodiment, the sliding drive assembly is a rodless cylinder fixedly mounted on a horizontal fixed frame D1, the sleeve D3 of the cargo unloading assembly is slidably connected to the cylinder tube D2 of the rodless cylinder, and the horizontal drive shaft D5 is located in front of the cylinder tube of the rodless cylinder and parallel to it.

[0104] The position of the cargo unloading assembly on the sliding sleeve can be adjusted by controlling the working state of the rodless cylinder, so that the cargo unloading assembly can move in front of the fixed point of the cargo to be processed H2 by sliding on the cylinder tube D2, so that the cargo unloading assembly can unload the cargo.

[0105] like Fig.12As shown, when working, the sliding fixed-point cargo unloading mechanism slides the front end of the horizontal conveying platform together with the auxiliary adsorption translation mechanism close to the cargo, and at the same time, the rodless cylinder is adjusted to make the cargo unloading assembly on the sliding sleeve slide along the cylinder tube to the front of the cargo H2 to be processed and contact it. Through the above two actions, the upper unloading roller D52 moves and contacts the front side of the cargo H2 to be processed (the above two actions are not limited in order, and the order can be adjusted).

[0106] Afterwards, the horizontal driving shaft rotates under the driving action of a transmission mechanism and transmits the power to the passive sprocket through the connected active sprocket, thereby driving the upper roller connected to the passive sprocket and the unloading roller thereon to rotate continuously. The unloading roller continuously applies an upward friction force to the surface of the container during rotation through the numerous friction protrusions distributed on the surface. The cargo gradually moves out from the original position and is partially transferred to the upper unloading roller. The sliding fixed-point cargo unloading mechanism slides backward along with the auxiliary adsorption translation mechanism. The cargo falls to the horizontal conveying platform 7 below under the action of inertia and is transferred to the next destination by the cargo conveying mechanism thereon.

[0107] In other embodiments, Fig.16 As shown, the sliding drive assembly includes: a slideway A1 parallel to the horizontal drive shaft and slidably connected to the bottom of the slide sleeve D3, a chain A2 fixedly connected to the cargo unloading assembly, a sprocket group meshed with the chain, and a third drive motor A3 driving the sprocket group to move, and the slideway is fixed on the horizontal fixed frame D1. The third drive motor drives the chain to drive the cargo unloading assembly to slide left and right along the slideway. The chain A2 is set to be parallel to the slideway, and a first sprocket A4 and a second sprocket A5 are respectively set at both ends of the slideway A1. The first sprocket A4 and the second sprocket A5 are respectively fixed on the horizontal fixed frame, and the first sprocket A4 is connected to the third drive motor A3 in a transmission connection (directly or indirectly). The slide sleeve in the cargo unloading assembly is fixedly connected to the chain A2 through a connecting plate A6, and the third drive mechanism drives the chain to move through the sprocket group, so that the chain drives the cargo unloading assembly to slide left and right along the slideway, so that it slides in front of the cargo to be processed, which is convenient for the subsequent unloading of the fixed-point cargo.

[0108] In this embodiment, preferably, the driving sprocket D42 includes a gear portion and a connecting portion extending from the side of the gear portion, and the connecting portion is provided with a non-circular cross-section plug hole for the horizontal drive shaft to plug and match. Optionally, the cross section of the plug hole is a polygon, and the horizontal drive shaft is a matching polygonal column.

[0109] Through the plug-in cooperation of the horizontal drive shaft and the driving sprocket, the rotation of the horizontal drive shaft can smoothly drive the driving sprocket to rotate, thereby driving the passive sprocket and the upper unloading roller to rotate. In this way, no matter where the cargo unloading assembly slides to the cylinder tube, the horizontal drive shaft rotating under the drive of external force can drive the driving sprocket to work through the tube part plug-in cooperation with the driving sprocket.

[0110] In this embodiment, the cross section of the plug hole is hexagonal, and the cross section of the horizontal drive shaft is hexagonal. In other embodiments, the cross section of the plug hole can also be any other shape except circular.

[0111] In this embodiment, the horizontal fixing frame includes a horizontal fixing bottom plate D11 and side plates D12 connected to both ends of the horizontal fixing bottom plate. In other embodiments, the horizontal fixing frame may also adopt other structures.

[0112] Preferably, a first drive motor D6 is also installed on the horizontal fixed frame D1, a first transmission wheel D61 is installed on the output shaft of the first drive motor, and a second transmission wheel D62 is correspondingly arranged at the end of the horizontal drive shaft D5, and the first transmission wheel and the second transmission wheel are connected by a chain or a synchronous belt. The first drive motor, the first transmission wheel, the second transmission wheel and other structures constitute the aforementioned transmission mechanism for driving the horizontal drive shaft to rotate.

[0113] In this embodiment, the first transmission wheel D61 and the second transmission wheel D62 are arranged at the outer end of the front arm plate D41. The positions of the first transmission wheel and the second transmission wheel arranged in this way are reasonably designed and do not affect the operation of the cargo unloading assembly in normal operation.

[0114] In this embodiment, in order to simplify the structure, the upper unloading roller D52 fixedly arranged on the upper roller shaft is provided as one, and the driving sprocket D42 is symmetrically arranged on one side or both sides of the upper unloading roller D52. In other embodiments, as a variation, multiple coaxially arranged upper unloading rollers are fixedly arranged on the upper roller shaft, and the driving sprocket is arranged between or at the outer ends of two adjacent upper unloading rollers.

[0115] In this embodiment, the friction protrusions on the upper unloading roller D52 are spiral belt protrusions distributed in a spiral shape along the outer circumference of the roller; or, the friction protrusions are friction belts parallel to the central axis formed by the outer circumference of the roller; or, the friction protrusions are nail-shaped protrusions or figure-eight strip protrusions. The structure of the friction protrusions is not limited to the structure of the attached figure.

[0116] Preferably, in this embodiment, the upper unloading roller D52 is a rubber roller. The upper unloading roller and the upper roller are integrally arranged, such as adding a layer of corresponding structure of rubber material (such as the upper unloading roller structure) on the surface of the upper roller through a rubber vulcanization process. In other embodiments, the upper unloading roller and the upper roller can also be fixedly connected by other methods (such as bonding, etc.).

[0117] In this embodiment, the above-mentioned sliding fixed-point cargo unloading mechanism is first used to unload the improperly placed cargo H2 in the container separately, and then the automatic flip unloading assembly is used to unload the remaining neatly placed cargo H1 in batches, thereby completing the unloading of all cargo in the container. In this embodiment, through the clever cooperation of the above-mentioned two mechanisms, the automatic cargo unloading device reduces the requirements for the neatness of the container cargo, greatly improving its practicality.

[0118] Example 3

[0119] This embodiment provides an automatic unloading machine equipped with the automatic cargo unloading device of Embodiment 1 or Embodiment 2. Figure 13-15 The structure shown is used as an example for explanation.

[0120] In the automatic unloader, the horizontal conveying platform 7 is connected to a traveling trolley C through a lifting mechanism J; the upper end of a middle belt transmission mechanism P1 is connected to the horizontal conveying platform, and the lower end of the middle belt transmission mechanism extends to the lower part of the traveling trolley. The middle belt transmission mechanism P1 is fixed on the lifting mechanism J.

[0121] Specifically, the lifting mechanism J includes: a lifting arm base J1 arranged on the walking trolley C, a lifting swing arm J2 connected to the lifting arm base, and a first power mechanism J3 for driving the lifting swing arm to swing and lift; the lower end of the lifting swing arm is hinged on the lifting arm base, and the upper end of the lifting swing arm is connected to the horizontal conveying platform 7; the swinging of the lifting swing arm will drive the horizontal conveying platform 7 to lift and lower.

[0122] In this embodiment, the first power mechanism J3 is a hydraulic cylinder, the bottom of which is fixed on a hydraulic cylinder fixing seat, and the outer end of the telescopic rod of the hydraulic cylinder is hinged to the middle or lower middle part of the lifting swing arm J2. The lifting swing arm is controlled to swing within a certain range by telescoping the telescopic rod of the hydraulic cylinder.

[0123] In this embodiment, the lifting swing arm is composed of two groups of side wall plates arranged symmetrically on the left and right and a connecting plate located in the middle connecting the side wall plates. In other embodiments, the lifting swing arm can adopt other conventional structures and is not limited to the specific structure in the drawings.

[0124] In this embodiment, the bottom bracket of the middle belt transmission mechanism P1 is also hinged to the lifting arm base, and the top bracket of the middle belt transmission mechanism P1 is hinged to the horizontal conveying platform 7. After this arrangement, the middle belt transmission mechanism is synchronously adjusted with the swinging movement of the lifting swing arm to ensure that it can always perform normal transmission work.

[0125] Furthermore, in order to endow the lifting mechanism and the connected horizontal conveying platform with a more precise forward and backward displacement adjustment function, the bottom of the lifting mechanism J is slidably connected to the frame of the traveling trolley through a second horizontal sliding mechanism E; the second horizontal sliding mechanism includes a second slide rail E1 fixed to the frame of the traveling trolley, a sliding base E2 with a pulley group at the bottom, and a second power mechanism E3 that drives the sliding base to slide along the second slide rail, and the sliding wheel group is slidably matched with the second slide rail. In this embodiment, the second power mechanism E3 is a horizontal hydraulic cylinder, and a cylinder may also be used in other embodiments.

[0126] In this embodiment, in order to better automatically unload the goods to the ground, a bottom belt transmission mechanism P2 is fixedly provided at the lower part of the walking vehicle for receiving the goods from the middle belt transmission mechanism. The lower end of the middle belt transmission mechanism extends to the top of the bottom belt transmission mechanism, so that the two can connect the transportation routes.

[0127] Furthermore, in order to better adjust the angle of the horizontal conveying platform to meet the working requirements, a horizontal conveying platform rotating mechanism X is provided on the lifting mechanism J. Specifically, the middle of the rear end of the horizontal conveying platform is hinged to the front end of the lifting swing arm J2, and the horizontal conveying platform rotating mechanism X includes a tilting cylinder X1 whose bottom is hinged to the base of the lifting arm and a connecting rod assembly X2 connected to the telescopic rod of the tilting cylinder. The front end of the connecting rod assembly is directly or indirectly connected to the upper side or lower side of the rear end of the horizontal conveying platform; the tilting cylinder drives the horizontal conveying platform to rotate around the hinged part through the connecting rod assembly, thereby accurately adjusting the angle of the horizontal conveying platform.

[0128] Specifically, the connecting rod assembly is composed of one or more connected connecting rods or connecting plates.

[0129] like Fig.15 As shown, in this embodiment, there are two groups of connecting rod assemblies, which are symmetrically arranged on both sides of the lifting mechanism J. The connecting rod assembly consists of a long rod X21 and a triangular connecting plate X22. One end of the lower part of the triangular connecting plate is fixed on the lifting arm base J1, and the other end of the lower part of the triangular connecting plate is connected to the tilt cylinder X1. The upper end of the triangular connecting plate is connected to the lower end of the long rod, and the upper end of the long rod is directly or indirectly connected to the horizontal conveying platform.

[0130] Preferably, the upper end of the long rod is connected to the horizontal conveying platform through the ear plate X3, the middle part of the ear plate is pivotally connected to the horizontal conveying platform through a connecting shaft, the upper and lower ends of the front side of the ear plate away from the connecting shaft are connected to the horizontal conveying platform, and the rear end of the ear plate away from the connecting shaft is connected to the connecting rod assembly. The upper end of the lifting swing arm J2 is hinged to the front part of the ear plate through a rotating shaft.

[0131] In this embodiment, the upper end of the long rod is connected to the horizontal conveying platform through the ear plate X3. The tilting cylinder drives the ear plate to rotate along the connecting axis at a certain angle through the triangular connecting plate and the long rod, thereby adjusting the horizontal conveying platform connected to the ear plate to rotate synchronously, thereby adjusting the posture of the horizontal conveying platform.

[0132] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. It is understandable that for those of ordinary skill in the art, equivalent replacements or changes may be made according to the technical solutions and concepts of the present invention, and all these changes or replacements shall fall within the scope of protection of the claims attached to the present invention.

Claims

1. A cargo automatic unloading device, characterized in that: The invention comprises a horizontal conveying platform (7), a row of automatic flipping unloading components (F) fixedly mounted at the front end of the horizontal conveying platform, and an auxiliary adsorption translation mechanism (8) slidably connected to the front end of the horizontal conveying platform and provided with a suction cup; the automatic flipping unloading component comprises a fixed seat (1) for connecting to the front end of the horizontal conveying platform, a driving roller (2) connected to the fixed seat, and a front roller (3) connected in parallel to the front of the driving roller, a front unloading roller (31) fixedly mounted on the front roller, an auxiliary unloading roller (21) fixedly mounted on the driving roller, and corresponding ends of the driving roller and the front roller The two components are fixedly connected by a swing arm (4); a swing driving wheel (5) for transmission connection with the first driving mechanism is installed on the core shaft of the driving roller, and a transmission connection is made between the front unloading roller and the auxiliary unloading roller; friction protrusions are arranged on the surfaces of the front unloading roller and the auxiliary unloading roller; the auxiliary adsorption translation mechanism adsorbs the goods to be unloaded, and the continuous upward rotation of the front unloading roller of the automatic flipping unloading assembly and the flipping of the front roller pry up the goods and transport them to the horizontal conveying platform; the length of the swing arms (4) of the automatic flipping unloading assemblies arranged side by side gradually increases in the direction from one end of the horizontal conveying platform to the other end.

2. The automatic cargo unloading device according to claim 1, characterized in that: The horizontal conveying platform (7) comprises a first conveying area (71) and a second conveying area (72) connected to the discharge side of the first conveying area; the rear end of the second conveying area is arranged as a discharge end (72a); the cargo transport direction of the first conveying area (71) is perpendicular to the discharge direction of the automatic flipping unloading component, and the cargo transport direction of the second conveying area is consistent with the discharge direction of the automatic flipping unloading component.

3. The automatic cargo unloading device according to claim 2, characterized in that: The first conveying area is provided with a first conveying roller group consisting of a plurality of parallel first rollers (711) moving in the same direction and synchronously; the second conveying area is provided with a second conveying roller group consisting of a plurality of parallel second rollers (721) moving in the same direction and synchronously.

4. The automatic cargo unloading device according to claim 3, characterized in that: A limiting roller (722) is arranged along the outer side of the second conveying area away from the first conveying area. The limiting roller is arranged parallel to the first roller (711), and the rotation direction of the limiting roller is opposite to that of the first roller (711).

5. The automatic cargo unloading device according to claim 1, characterized in that: The auxiliary adsorption translation mechanism (8) comprises a horizontal guide rail (81) arranged along the unloading direction, a base (82) slidably arranged on the horizontal guide rail, a suction cup fixing frame (83) arranged on the base, and a plurality of suction cups (84) horizontally distributed along the suction cup fixing frame; a third driving mechanism drives the base to move along the horizontal guide rail until the suction cup is adsorbed onto the surface of the goods where the front unloading roller (31) acts.

6. The automatic cargo unloading device according to claim 5, characterized in that: It also includes a sliding fixed-point cargo unloading mechanism (D) fixed above the auxiliary adsorption translation mechanism (8), the sliding fixed-point cargo unloading mechanism including a horizontal fixed frame (D1), a cargo unloading assembly connected to the horizontal fixed frame by sliding left and right, and a sliding drive assembly driving the cargo unloading assembly to slide left and right, a horizontal drive shaft (D5) with a non-circular cross-section for driving connection with the transmission mechanism is fixedly arranged on the horizontal fixed frame, and the horizontal drive shaft is parallel to the sliding track of the sliding drive assembly; the cargo unloading assembly includes a sliding sleeve (D3) and at least one group of front arm plates (D41) fixed in front of the sliding sleeve and perpendicular to the horizontal drive shaft, the horizontal drive shaft passes through and is connected to the base of the front arm plate near the sliding sleeve through a bearing, and a driving sprocket (D42) is fixedly installed on the horizontal drive shaft; an upper roller (D53) is installed between the distal ends of the two front arm plates away from the sliding sleeve, an upper unloading roller (D52) is fixed on the upper roller, a passive sprocket (D51) connected to the driving sprocket for transmission is arranged on the upper roller, and a friction protrusion is arranged on the surface of the upper unloading roller; The horizontal driving shaft rotates under the driving action of the transmission mechanism and drives the upper unloading roller on the upper roller shaft to rotate through the connected driving sprocket and the driven sprocket.

7. An automatic unloading machine, characterized in that: An automatic cargo unloading device as described in any one of claims 1 to 6 is installed, and a horizontal conveying platform (7) is connected to a traveling trolley (C) through a lifting mechanism (J); the upper end of a middle belt transmission mechanism (P1) is connected to the horizontal conveying platform, and the lower end of the middle belt transmission mechanism extends to the lower part of the traveling trolley.

8. The automatic unloading machine according to claim 7, characterized in that: The lifting mechanism (J) comprises: a lifting arm base (J1) arranged on a walking trolley (C), a lifting swing arm (J2) connected to the lifting arm base, and a first power mechanism (J3) for driving the lifting swing arm to swing and lift; the lower end of the lifting swing arm is hinged on the lifting arm base, and the upper end of the lifting swing arm is connected to a horizontal conveying platform (7); the swinging of the lifting swing arm drives the horizontal conveying platform (7) to lift and lower.

9. The automatic unloading machine according to claim 8, characterized in that: The bottom bracket of the middle belt transmission mechanism (P1) is hinged to the lifting arm base, the top bracket of the middle belt transmission mechanism (P1) is hinged to the horizontal conveying platform (7), and the middle belt transmission mechanism swings synchronously with the swinging action of the lifting swing arm.

10. The automatic unloading machine according to claim 9, characterized in that: The bottom of the lifting mechanism (J) is slidably connected to the frame of the traveling trolley via a second horizontal sliding mechanism (E); the second horizontal sliding mechanism comprises a second slide rail (E1) fixed to the frame of the traveling trolley, a sliding base (E2) with a pulley group at the bottom, and a second power mechanism (E3) driving the sliding base to slide along the second slide rail, and the sliding wheel group is slidably matched with the second slide rail.

11. The automatic unloading machine according to claim 9, characterized in that: A bottom belt transmission mechanism (P2) for receiving goods from a middle belt transmission mechanism is fixedly arranged at the lower part of the walking vehicle, and the lower end of the middle belt transmission mechanism extends to the upper part of the bottom belt transmission mechanism.

12. The automatic unloading machine according to claim 9 or 11, characterized in that: The middle part of the rear end of the horizontal conveying platform is hinged to the front end of the lifting arm (J2); a horizontal conveying platform rotating mechanism (X) is arranged on the lifting mechanism (J); the horizontal conveying platform rotating mechanism (X) comprises a tilting cylinder (X1) whose bottom is hinged to the lifting arm base and a connecting rod assembly (X2) connected to the telescopic rod of the tilting cylinder; the front end of the connecting rod assembly is directly or indirectly connected to the upper side or the lower side of the rear end of the horizontal conveying platform; the tilting cylinder drives the horizontal conveying platform to rotate through the connecting rod assembly, thereby adjusting the posture of the horizontal conveying platform.

13. The automatic unloading machine according to claim 12, characterized in that: The upper end of the long rod is connected to the horizontal conveying platform through an ear plate (X3), the middle part of the ear plate is pivotally connected to the horizontal conveying platform through a connecting shaft (X31), the upper and lower ends of the front side of the ear plate away from the connecting shaft are connected to the horizontal conveying platform, and the rear end of the ear plate away from the connecting shaft is connected to the connecting rod assembly; the tilting cylinder drives the ear plate to drive the horizontal conveying platform to rotate through the connecting rod assembly, thereby adjusting the posture of the horizontal conveying platform.

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