Automatic tray stacking device

Abstract

The invention relates to the technical field of automation equipment, and discloses an automatic tray stacking device which comprises a rack, a conveying mechanism, a pre-stacking mechanism, a tray pushing mechanism and a grabbing mechanism, the conveying mechanism comprises a first conveying unit and a second conveying unit, and the input end of the second conveying unit is in butt joint with the output end of the first conveying unit; the conveying surface of the second conveying unit is lower than that of the first conveying unit; the pre-stacking mechanism is arranged below the second conveying unit and can ascend and descend in the third direction to penetrate through the second conveying unit, and a plate stacking area is formed between the pre-stacking mechanism and the input end of the second conveying unit. The tray pushing mechanism is used for pushing the single trays located on the first conveying unit in the second direction. The grabbing mechanism is located on the outer side of the output end of the second conveying unit and can move back and forth in the second direction. According to the automatic tray stacking device, automatic tray stacking can be achieved, manual operation is not needed, the labor intensity and the labor cost can be effectively reduced, and then the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic disc stacking devices, in particular to an automatic disc stacking device. Background Art

[0002] A pallet is a tool used for loading, stacking, handling and transporting goods and products as a horizontal platform device for unit loads, so that the goods can be moved on the production line. In the actual production process, multiple pallets are usually stacked together and then transported to the processing station. However, the stacking and separation of multiple pallets is a heavy physical labor. At present, the stacking of such pallets is done manually. On the one hand, manual operation is inefficient and wastes a lot of time. At the same time, the labor cost is high, which increases the production cost. On the other hand, the accuracy of manual operation is difficult to guarantee, and the problem of inconsistent stacking height of pallets is prone to occur. Summary of the invention

[0003] The present invention provides an automatic tray stacking device, which can realize automatic tray stacking, reduce labor intensity, and effectively improve production efficiency.

[0004] The present application provides an automatic stacking device, comprising:

[0005] A rack having a first direction, a second direction and a third direction which are perpendicular to each other;

[0006] A conveying mechanism, comprising a first conveying unit and a second conveying unit, wherein the first conveying unit is arranged on the frame along the first direction, and the second conveying unit is arranged on the frame along the second direction, an input end of the second conveying unit is connected to an output end of the first conveying unit, and a conveying surface of the second conveying unit is lower than a conveying surface of the first conveying unit;

[0007] a pre-stacking mechanism, which is disposed below the second conveying unit and can be lifted and lowered along the third direction to pass through the second conveying unit, and a stacking area is formed between the pre-stacking mechanism and an input end of the second conveying unit;

[0008] a tray pushing mechanism, used for pushing a single tray located on the first conveying unit along the second direction, so that the single tray is pushed into the tray stacking area for tray stacking;

[0009] The grabbing mechanism is located outside the output end of the second conveying unit and can move back and forth along the second direction, and is used for grabbing the trays stacked on the second conveying unit.

[0010] In one embodiment, the gripping mechanism comprises:

[0011] A clamping assembly, comprising a mounting beam and two moving frames, wherein the two moving frames are axially symmetrically connected to the mounting beam, and each of the moving frames is rotatably connected to a clamping plate at one end away from the mounting beam, and a clamping space for clamping a pallet is formed between the two clamping plates, and the moving frame can move along a first direction to adjust the size of the clamping space;

[0012] a turning assembly connected to the clamping plate to drive the clamping plate to turn over; and

[0013] A lifting component can move back and forth along the second direction, the lifting component has a lifting end that can perform lifting movement along the third direction, and the lifting end of the lifting component is connected to the mounting beam.

[0014] In one embodiment, the flip assembly includes a first driving member, a first rotating wheel, a second rotating wheel and a first transmission belt, the first driving member is mounted on the mounting beam, and the output shaft of the first driving member is connected to the first rotating wheel, the second rotating wheel is mounted on the surface of the clamping plate connected to the moving frame, and the first transmission belt is wound between the first rotating wheel and the second rotating wheel;

[0015] When the first driving member drives the first rotating wheel to rotate, the first transmission belt pulls the second rotating wheel to rotate, so as to drive the clamping plate to flip.

[0016] In one embodiment, the gripping mechanism further comprises:

[0017] A second driving member, which is mounted on the mounting beam, wherein an output shaft of the second driving member is connected to an end of the moving frame close to the mounting beam, and is used to push the moving frame to move along a first direction;

[0018] A first slide rail is fixed on the surface of the mounting beam along the first direction. A first slider is slidably connected to the first slide rail, and the first slider is connected to the moving frame.

[0019] In one embodiment, the lifting assembly comprises:

[0020] A support plate, which is disposed above the mounting beam and can move back and forth along the second direction, and a second guide wheel is rotatably provided on the support plate;

[0021] A third driving member, which is mounted on the support plate, wherein an output shaft of the third driving member is connected to a first guide wheel, and a synchronous belt is wound between the first guide wheel and the second guide wheel;

[0022] A connecting beam, which penetrates the supporting plate along the third direction, the connecting beam is provided with a lifting end connected to the mounting beam, and one end of the connecting beam close to the mounting beam is provided with a clamping member, the clamping member is used for clamping and connecting with the synchronous belt;

[0023] When the third driving member drives the first guide wheel to rotate, the synchronous belt operates to pull the connecting beam to be lifted and lowered along the third direction, so as to drive the mounting beam to be lifted and lowered.

[0024] In one embodiment, a traverse mechanism is further included, and the traverse mechanism includes:

[0025] a bracket, which is arranged at one side of the output end of the second conveying unit, the bracket is provided with a second slide rail along the second direction, the second slide rail is slidably connected with a second slider, and the second slider is connected to the support plate;

[0026] A fourth driving member is mounted on the bracket, the output shaft of the fourth driving member is connected to a driving wheel, a driven wheel is mounted on one end of the bracket away from the fourth driving member, a second transmission belt is connected between the driven wheel and the driving wheel, and the support plate is fixedly connected to the second transmission belt.

[0027] In one embodiment, the pre-folding mechanism comprises:

[0028] a fixed plate, which is arranged below the second conveying unit;

[0029] a baffle plate, which is located above the fixed plate and can pass through the second conveying unit along the third direction, and the stacking area is formed between the baffle plate and the input end of the second conveying unit;

[0030] A lifting power member is fixed on the fixing plate, and an output shaft of the lifting power member passes through the fixing plate along the third direction and is connected to the baffle plate, so as to provide a driving force for driving the baffle plate.

[0031] In one embodiment, the tray pushing mechanism comprises:

[0032] a pushing power member, which is fixed on the mounting beam and is located on a side of the first conveying unit away from the second conveying unit, and the output shaft of the pushing power member extends along the second direction;

[0033] A push plate is connected to the output shaft of the pushing power member and is used to push a single tray located on the first conveying unit into the tray stacking area.

[0034] In one embodiment, the automatic stacking device further includes a deviation correction mechanism, and the deviation correction mechanism includes:

[0035] A first deflection-correcting plate, which is fixed on the outside of the stacking area;

[0036] A second deflection correcting plate, which is arranged on a side opposite to the first deflection correcting plate;

[0037] A deflection correcting power member is connected to the second deflection correcting plate and is used to drive the second deflection correcting plate to approach or move away from the first deflection correcting plate along the first direction.

[0038] In one embodiment, the self-stacking device further comprises an air blowing mechanism, and the air blowing mechanism comprises:

[0039] A mounting frame, which is mounted above the first conveying unit;

[0040] An air blowing pipe, which is adjustably mounted in the mounting frame, and the air blowing pipe is provided with a plurality of air blowing holes, and the air blowing holes are used to blow air toward the conveying surface of the first conveying unit;

[0041] An air supply pipe, one end of which passes through the mounting frame and is connected to the air blowing pipe, and the other end of which is used to connect to an external air source.

[0042] In one embodiment, the automatic tray stacking device further comprises a tray blocking member, which is disposed below the first conveying unit and can be lifted and lowered along the third direction to pass through the first conveying unit for alternately blocking a single tray on the first conveying unit.

[0043] Compared with the prior art, the above technical solution provided by the embodiment of the present application has the following beneficial effects:

[0044] A single pallet is transported by the first conveying unit, and then the single pallet on the first conveying unit is pushed in turn along the second direction under the action of the tray pushing mechanism, so that the single pallet enters the stacking area, and under the action of the pre-stacking mechanism, the single pallet is stacked in turn, until the pallets are stacked to a certain number, the pre-stacking mechanism is lifted and lowered along the third direction, so that the pre-stacking mechanism is free from the obstruction of the pallet, so that the stacked pallet is transported under the action of the second conveying unit, and after being transported to the set position, the grabbing mechanism grabs the stacked pallet staying at the set position, and moves along the second direction, and finally transfers the grabbed pallet to the designated position for stacking. In other words, the automatic stacking device can realize the automatic stacking of pallets without manual operation, which can effectively reduce labor intensity and labor costs, thereby improving production efficiency, and at the same time can improve the accuracy of stacking and avoid the situation where the pallets are stacked at different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of an embodiment of an automatic stacking device of the present application;

[0046] Figure 2 It is a structural schematic diagram of another embodiment of an automatic stacking device of the present application;

[0047] Figure 3 It is a schematic structural diagram of an embodiment of a clamping assembly and a flipping assembly in an automatic stacking device of the present application;

[0048] Figure 4 It is a schematic structural diagram of an embodiment of a lifting component in an automatic stacking device of the present application;

[0049] Figure 5 It is a structural schematic diagram of an embodiment of a conveying mechanism in an automatic stacking device of the present application; Figure 6 It is a structural schematic diagram of an embodiment of a pre-stacking mechanism in an automatic stacking device of the present application.

[0050] Numbers in the figure:

[0051] 10, frame; 20, conveying mechanism; 21, first conveying unit; 22, second conveying unit; 30, pre-stacking mechanism; 31, fixed plate; 32, lifting power member; 33, baffle; 34, guide rod; 40, push plate mechanism; 41, push power member; 42, push plate; 50, grabbing mechanism; 51, clamping assembly; 511, mounting beam; 512, moving frame; 513, clamping plate; 514, second driving member; 515, first slide rail; 516, first slider; 517, limit block; 52, flip assembly; 521, first driving member; 522, second rotating wheel; 523, first transmission belt; 53, lifting assembly; 531, support plate; 532 , third driving member; 533, first guide wheel; 534, second guide wheel; 535, synchronous belt; 536, clamping member; 537, connecting beam; 60, transverse movement mechanism; 61, bracket; 62, fourth driving member; 63, driving wheel; 64, driven wheel; 65, second transmission belt; 66, second slide rail; 67, second slide block; 70, blowing mechanism; 71, mounting frame; 72, blowing pipe; 73, air supply pipe; 80, baffle member; 90, correction mechanism; 91, first correction plate; 92, second correction plate; 93, correction power member; 100, plate body; 110, transfer trolley; 130, pallet; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0052] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "longitudinal", "horizontal", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc. are based on the directions or positional relationships shown in the accompanying drawings, are constructed and operated in a specific direction, and are only for the convenience of describing the present technical solution, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0053] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0054] Please refer to Figure 1 An embodiment of the present application provides an automatic tray stacking device, which includes a frame 10, a conveying mechanism 20, a pre-stacking mechanism 30, a tray pushing mechanism 40 and a grabbing mechanism 50.

[0055] Specifically, the frame 10 has a first direction X, a second direction Y and a third direction Z which are perpendicular to each other. The conveying mechanism 20 includes a first conveying unit 21 and a second conveying unit 22. The first conveying unit 21 is arranged on the frame 10 along the first direction X, and the second conveying unit 22 is arranged on the frame 10 along the second direction Y. The input end of the second conveying unit 22 is connected to the output end of the first conveying unit 21, and the conveying surface of the second conveying unit 22 is lower than the conveying surface of the first conveying unit 21, so that the tray 130 entering from the first conveying unit 21 to the second conveying unit 22 is in a free fall manner, thereby realizing the stacking of the trays 130. The pre-stacking mechanism 30 is arranged below the second conveying unit 22, and can be lifted and lowered along the third direction Z to pass through the second conveying unit 22, and a stacking area is formed between the pre-stacking mechanism 30 and the input end of the second conveying unit 22. The tray pushing mechanism 40 is used to push a single tray 130 located on the first conveying unit 21 along the second direction Y, so that the single tray 130 is pushed into the stacking area for stacking. The grabbing mechanism 50 is located outside the output end of the second conveying unit 22 and can move back and forth along the second direction Y to grab the trays stacked on the second conveying unit 22 .

[0056] For the convenience of description, the first direction X refers to the conveying direction of a single tray on the first conveying unit 21. Figure 1 The second direction Y refers to the transport direction of the stacking tray 130 transported on the second conveying unit 22, which can be specifically referred to Figure 1The third direction Z refers to the direction perpendicular to the conveying surface of the second conveying unit 22, which can be specifically referred to Figure 1 The Z direction in .

[0057] The present application uses the first conveying unit 21 to transport a single tray 130, and then the single tray 130 on the first conveying unit 21 is pushed in turn along the second direction Y under the action of the tray pushing mechanism 40, so that the single tray 130 enters the stacking area, and under the action of the pre-stacking mechanism 30, the single tray 130 is stacked in turn, until the tray 130 is stacked to a certain number, the pre-stacking mechanism 30 descends along the third direction Z, so that the pre-stacking mechanism 30 is free from the obstruction of the tray, and then the stacked tray 130 is transported under the action of the second conveying unit 22, and after being transported to the set position, the grabbing mechanism 50 grabs the stacked tray 130 that stays at the set position, and moves along the second direction Y, and finally transfers the grabbed tray 130 to the designated position for storage. In other words, the automatic stacking device can realize the automatic stacking of the tray 130, without manual operation, which can effectively reduce labor intensity and labor costs, thereby improving production efficiency, and at the same time, it can also improve the accuracy of stacking and avoid the situation where the trays are stacked at different heights.

[0058] Exemplarily, the first conveying unit 21 and the second conveying unit 22 are both used to convey the pallet 130 in a straight line, and play a role of conveying. To this end, the first conveying unit 21 and the second conveying unit 22 can both adopt the mechanism commonly used in the prior art for conveying goods, for example: the first conveying unit 21 and the second conveying unit 22 can both adopt a combination of a motor, a conveying roller and a conveying frame, a plurality of conveying rollers are spaced across the conveying frame, and the conveying rollers are driven by a motor to rotate, so that the pallet placed on the conveying rollers can be conveyed in a straight line. The above is only an example and is not limited to this.

[0059] Exemplarily, since the output end of the first conveying unit 21 is connected to the input end of the second conveying unit 22, and the conveying surface of the first conveying unit 21 is higher than the conveying surface of the second conveying unit 22, the tray 130 on the first conveying unit 21 falls onto the second conveying unit 22 in a free fall manner under the push of the tray pushing mechanism 40. To this end, the pre-stacking mechanism 30 in this embodiment is used to alternately block the trays of the second conveying unit 22, that is: before the tray 130 on the first conveying unit 21 is pushed into the second conveying unit 22, the pre-stacking mechanism 30 rises along the third direction Z and passes through the second conveying unit 22, so that the pre-stacking mechanism 30 extends from the bottom of the second conveying unit 22, and then the trays 130 on the first conveying unit 21 fall to the stacking area in turn in a free fall manner under the action of the tray pushing mechanism 40. Since the pre-stacking mechanism 30 blocks the trays 130, the trays 130 stay in the stacking area and are continuously stacked until the trays 130 are stacked to a certain number (for example, 10 are stacked), and the pre-stacking mechanism 30 descends along the third direction Z to be retracted to the bottom of the second conveying unit 22. At this time, the stacked trays 130 are transported under the action of the second conveying unit 22, thereby realizing the orderly and automatic stacking of the trays 130.

[0060] Exemplarily, the tray pushing mechanism 40 plays a role in pushing the tray, that is, pushing the single tray 130 on the first conveying unit 21 into the second conveying unit 22 in an orderly manner. To this end, the tray pushing mechanism 40 can adopt the specific structure in the following embodiments, or can adopt other mechanisms in the prior art that can realize automatic pushing of the tray 130, which is not limited.

[0061] In addition, in order to ensure that the grasping mechanism 50 grasps the stacked trays 130 on the second conveying unit 22 accurately, it is necessary to ensure that the stacked trays 130 are in a relatively static state. That is, when the grasping mechanism 50 grasps the stacked push trays 200, the stacked trays 130 on the second conveying unit 22 need to be blocked by a blocking member. To this end, in this embodiment, a raised plate body 100 is provided at the output end of the second conveying unit 22, so that the stacked trays stay on the second conveying unit 22 under the blocking of the plate body 100, so that the subsequent grasping mechanism 50 can grasp them accurately.

[0062] The grabbing mechanism 50 is used to grab the tray 130 stacked on the second conveying unit 22. To this end, the grabbing mechanism 50 can adopt a mechanism (such as a robot) in the prior art that can realize grabbing the tray 130, or can adopt a specific structure in the following embodiment, which is not limited.

[0063] Please refer to Figure 2 and Figure 3In one embodiment, the gripping mechanism 50 includes a clamping assembly 51, a flip assembly 52 and a lifting assembly 53. The clamping assembly 51 includes a mounting beam 511 and two mobile frames 512. The two mobile frames 512 are axially symmetrically connected to the mounting beam 511. One end of each mobile frame 512 away from the mounting beam 511 is rotatably connected to a clamping plate 513. A clamping space for clamping a tray is formed between the two clamping plates 513. The mobile frame 512 can move along a first direction X to adjust the size of the clamping space. The flip assembly 52 includes a first driving member 521, a first rotating wheel, a second rotating wheel 522 and a first transmission belt 523. The first driving member 521 is installed on the mounting beam 511, and the output shaft of the first driving member 521 is connected to the first rotating wheel. The second rotating wheel 522 is installed on the surface where the clamping plate 513 is connected to the mobile frame 512. The first transmission belt 523 is wound between the first rotating wheel and the second rotating wheel 522. When the first driving member 521 drives the first rotating wheel to rotate, the first transmission belt 523 pulls the second rotating wheel 522 to rotate, so as to drive the clamping plate 513 to flip. The lifting assembly 53 can move back and forth along the second direction Y. The lifting assembly 53 has a lifting end that can perform lifting movement along the third direction Z. The lifting end of the lifting assembly 53 is connected to the mounting beam 511.

[0064] In actual application, when it is necessary to grab the stacked tray 130 on the second conveying unit 22, the lifting assembly 53 is driven to move along the second direction Y so that the clamping plate 513 is located above the stacked tray 130, and then the lifting assembly 53 drives the mounting beam 511 to move downward so that the stacked tray 130 is located in the clamping space, and then the moving frame 512 is driven to move along the first direction X so that the two moving frames 512 are close to each other, thereby driving their respective clamping plates 513 to move toward each other until the two clamping plates 513 respectively clamp the tray 130. After the two ends are abutted, the moving frame 512 stops moving, and the pallet 130 is clamped at this time. Then the lifting component 53 drives the mounting beam 511 to move upward to grab the pallet 130 upward, and finally drives the lifting component 53 to move along the second direction Y, so that the grabbed pallet 130 moves toward the stacking position. After moving to the specified position, the two moving frames 512 are driven away from each other, so that the clamping plate 513 disengages from the pallet 130, thereby completing the placement of the grabbed pallet 130 on the transfer cart 110 located at the specified position.

[0065] In addition, when the placement surface of the tray 130 needs to be adjusted, the first driving member 521 can be used to drive the first rotating wheel to rotate. Since a first transmission belt 523 is arranged between the first rotating wheel and the second rotating wheel 522, and the second rotating wheel 522 is installed on the surface of the clamping plate 513 for connecting with the movable frame 512, and the clamping plate 513 can rotate relative to the movable frame 512, the first transmission belt 523 can pull the second rotating wheel 522 to rotate, so as to drive the clamping plate 513 to flip, thereby driving the tray to flip, thereby realizing the adjustment of the placement surface of the tray 130. The structure is simple and the adjustment is convenient, and no subsequent manual adjustment is required.

[0066] That is to say, the grasping mechanism 50 in this embodiment can not only realize automatic grasping of the pallet 130 without manual grasping, which can reduce labor intensity and labor costs, but also automatically adjust the placement surface of the pallet 130 as needed, greatly shortening the cycle of turning over and stacking pallets, thereby meeting the needs of large-scale production and rapid logistics flow.

[0067] Please refer to Figure 4 Specifically, the lifting assembly 53 includes a support plate 531, a third driving member 532 and a connecting beam 537. The support plate 531 is arranged above the mounting beam 511 and can move back and forth along the second direction Y. The support plate 531 is rotatably provided with a second guide wheel 534. The third driving member 532 is installed on the support plate 531. The output shaft of the third driving member 532 is connected with a first guide wheel 533. A synchronous belt 535 is wound between the first guide wheel 533 and the second guide wheel 534. The connecting beam 537 penetrates the support plate 531 along the third direction Z. The connecting beam 537 is provided with a lifting end connected to the mounting beam 511, and a clamping member 536 is provided at one end of the connecting beam 537 close to the mounting beam 511. The clamping member 536 is used to clamp and connect with the synchronous belt 535, so that the connecting beam 537 is fixedly connected with the synchronous belt 535. When the third driving member 532 drives the first guide wheel 533 to rotate, the synchronous belt 535 operates to pull the connecting beam 537 to move up and down along the third direction Z, so as to drive the mounting beam 511 to move up and down.

[0068] That is, when it is necessary to grab the pallet on the second conveying unit 22 or place the grabbed pallet 130 on the transfer cart 110, the first guide wheel 533 is driven to rotate by the third driving member 532 to drive the synchronous belt 535 to operate. Since the connecting beam 537 can be lifted and lowered along the third direction Z relative to the support plate 531, and the connecting beam 537 is clamped and connected to the synchronous belt 535 by the clamping member 536, when the synchronous belt 535 is driven to operate, the connecting beam 537 is driven to be lifted and lowered along the third direction Z, thereby pulling the mounting beam 511 and the moving frame 512 connected to the connecting beam 537 to be lifted and lowered, so as to achieve the grabbing or placing of the pallet. In addition, it should be noted that the third driving member 532 in this embodiment adopts a servo motor, but is not limited to this.

[0069] Please refer to Figure 3 In one embodiment, the gripping mechanism 50 further includes a second driving member 514 and a first slide rail 515. The second driving member 514 is mounted on the mounting beam 511. The output shaft of the second driving member 514 is connected to one end of the mobile frame 512 close to the mounting beam 511, and is used to push the mobile frame 512 to move along the first direction X. The first slide rail 515 is fixed to the surface of the mounting beam 511 along the first direction X. The first slide rail 515 is slidably connected to a first slider 516, and the first slider 516 is connected to the mobile frame 512. That is, when the tray 130 is clamped, the second driving member 514 is used to drive the mobile frame 512 to move along the first direction X, thereby driving the clamping plate 513 connected to the mobile frame 512 to move, so that the two clamping plates 513 are close to each other, thereby clamping the tray 130. In addition, by arranging a first slide rail 515 on the surface of the mounting beam 511, and slidingly connecting a first slider 516 on the first slide rail 515, the first slider 516 is connected to the moving frame 512, thereby ensuring that the moving frame 512 moves in a predetermined direction, avoiding deviation during the movement, and ensuring stable clamping of the pallet. It should be noted that the second driving member 514 in this embodiment adopts a servo motor, but is not limited thereto.

[0070] Please refer to Figure 2 In one embodiment, the lateral movement mechanism 60 is further included. The lateral movement mechanism 60 includes a bracket 61 and a fourth driving member 62. The bracket 61 is disposed at one side of the output end of the second conveying unit 22. A second slide rail 66 is arranged on the bracket 61 along the second direction Y. A second slider 67 is slidably connected to the second slide rail 66. The second slider 67 is connected to the support plate 531. The fourth driving member 62 is mounted on the bracket 61. The output shaft of the fourth driving member 62 is connected to a driving wheel 63. A driven wheel 64 is mounted on one end of the bracket 61 away from the fourth driving member 62. A second transmission belt 65 is connected between the driven wheel 64 and the driving wheel 63. The support plate 531 is fixedly connected to the second transmission belt 65.

[0071] In this embodiment, the transverse movement mechanism 60 is used to drive the grasping mechanism 50 to move along the second direction Y, so that the grasped pallet can be transferred to the transfer vehicle 110 at the designated position for placement. The specific process is as follows:

[0072] After the grabbing mechanism 50 grabs the tray 130, the fourth driving member 62 drives the driving wheel 63 to rotate, so as to drive the second transmission belt 65 to operate. Since the second transmission belt 65 is fixedly connected to the support plate 531, the support plate 531 is driven to move along the second direction Y, thereby driving the connecting beam 537 connected to the support plate 531 and the clamping assembly 51 and the flip assembly 52 connected to the connecting beam 537 to move, so as to realize the transfer of the grabbed tray 130, with a simple structure and convenient operation. The fourth driving member 62 can be a servo motor, but is not limited thereto.

[0073] Please refer to Figure 5 In one embodiment, the pre-stacking mechanism 30 includes a fixed plate 31, a baffle 33 and a lifting power member 32. The fixed plate 31 is arranged below the second conveying unit 22; the baffle 33 is located above the fixed plate 31 and can pass through the second conveying unit 22 along the third direction Z, and a stacking area is formed between the baffle 33 and the input end of the second conveying unit 22; the lifting power member 32 is fixed on the fixed plate 31, and the output shaft of the lifting power member 32 passes through the fixed plate 31 along the third direction Z and is connected to the baffle 33, so as to provide a driving force for driving the baffle 33. That is, before pushing a single pallet on the first conveying unit 21 into the second conveying unit 22, the lifting power member 32 is used to drive the baffle 33 to be lifted and lowered along the third direction Z, so that the baffle 33 extends from the bottom of the second conveying unit 22 to block the pallet 130 entering the second conveying unit 22. At this time, the area between the baffle 33 and the input end of the second conveying unit 22 is the stacking area, so that the single pallet 130 on the first conveying unit 21 falls into the stacking area in a free fall manner for stacking. After stacking to a certain number, the lifting power member 32 drives the baffle 33 to be lifted and lowered, so that the baffle 33 is retracted to the bottom of the second conveying unit 22. At this time, the stacked pallets 130 are driven to be transported, thereby completing the pre-stacking of the pallets 130, so that the pre-stacking pallets 130 can be stacked again under the gripping of the gripping mechanism 50. In addition, the lifting power member 32 in this embodiment can be a cylinder, but is not limited to this.

[0074] In addition, in order to ensure the accuracy of the baffle 33 during the lifting and lowering process along the third direction Z, two guide rods 34 are axially symmetrically provided on the fixed plate 31, and the telescopic ends of the guide rods 34 are connected to the baffle 33, so that when the baffle 33 is driven to lift and lower, it can be ensured that the baffle 33 moves in a predetermined direction without position deviation.

[0075] Please refer to Figure 2 In one embodiment, the tray pushing mechanism 40 includes a pushing power member 41 and a pushing plate 42. The pushing power member 41 is fixed on the mounting beam 511 and is located on the side of the first conveying unit 21 away from the second conveying unit 22. The output shaft of the pushing power member 41 extends along the second direction Y. The pushing plate 42 is connected to the output shaft of the pushing power member 41, and is used to push a single tray located on the first conveying unit 21 into the tray stacking area. In actual application, the pushing power member 41 adopts a cylinder, and the extension and contraction of the cylinder piston rod is used to drive the pushing plate 42 to move along the second direction Y, thereby pushing the tray 130 on the first conveying unit 21 along the second direction Y. Since the output end of the first conveying unit 21 is connected to the input end of the second conveying unit 22, the single tray 130 can be automatically pushed onto the second conveying unit 22. The structure is simple, and the tray 130 can be automatically pushed.

[0076] Since the trays 130 on the first conveying unit 21 fall onto the second conveying unit 22 in a free-fall manner, the trays 130 are stacked. However, during this process, the trays 130 may be deviated, causing the stacked trays 130 to be loose or not properly stacked. Figure 4 In one embodiment, the automatic stacking device further includes a deflection correction mechanism 90, which includes a first deflection correction plate 91, a second deflection correction plate 92 and a deflection correction power member 93. The first deflection correction plate 91 is fixed on the outside of the stacking area; the second deflection correction plate 92 is arranged on the side opposite to the first deflection correction plate 91; the deflection correction power member 93 is connected to the second deflection correction plate 92, and is used to drive the second deflection correction plate 92 to move closer to or away from the first deflection correction plate 91 along the first direction X. In other words, the second deflection correction plate 92 is driven by the deflection correction power member 93 to move toward the direction of the first deflection correction plate 91, so that under the cooperation of the first deflection correction plate 91 and the second deflection correction plate 92, the pallets 130 stacked in the stacking area are corrected to ensure that the stacked pallets 130 are neatly stacked. In addition, the deflection correction power member 93 can be a cylinder, but is not limited to this.

[0077] Please refer to Figure 4In one embodiment, the self-stacking device further includes an air blowing mechanism 70, which includes a mounting frame 71, an air blowing pipe 72 and an air supply pipe 73. The mounting frame 71 is mounted above the first conveying unit 21; the air blowing pipe 72 is adjustably mounted in the mounting frame 71, and a plurality of air blowing holes are provided on the air blowing pipe 72, which are used to blow air toward the conveying surface of the first conveying unit 21. One end of the air supply pipe 73 passes through the mounting frame 71 and is connected to the air blowing pipe 72, and the other end is used to connect to an external air source. That is to say, since water stains or dust will remain on the surface of the tray 130 after cleaning, if it is not blown dry, the cleanliness of the tray will be affected. For this reason, this embodiment installs a mounting frame 71 on the first conveying unit 21, and sets an air blowing pipe 72 on the mounting frame 71. The air supply pipe 73 is used to supply air to the air blowing pipe 72, so that the gas entering the air blowing pipe 72 is blown out from the air hole and acts on the surface of the tray 130 passing under the blowing pipe, thereby achieving the purpose of cleaning the water stains or dust on the surface of the tray 130.

[0078] In one embodiment, the automatic tray stacking device further includes a baffle 80, which is disposed below the first conveying unit 21 and can be lifted and lowered along the third direction Z to pass through the first conveying unit 21, and is used to alternately block a single tray on the first conveying unit 21. In this way, the baffle 80 lifted and lowered along the third direction Z can be used to block the tray 130, so that the tray 130 can stay below the air blowing pipe 72 for a preset time, and then the gas blown from the air blowing hole acts on the surface of the tray 130, so as to achieve the purpose of quickly drying the tray 130. If the baffle 80 is not used to block the tray, the time for the gas blown from the air blowing hole to act on the surface of the tray 130 is short, and the effect of blowing the tray 130 clean is poor.

[0079] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. An automatic stacking device, characterized in that: include: A rack having a first direction, a second direction and a third direction which are perpendicular to each other; A conveying mechanism, comprising a first conveying unit and a second conveying unit, wherein the first conveying unit is arranged on the frame along the first direction, and the second conveying unit is arranged on the frame along the second direction, an input end of the second conveying unit is connected to an output end of the first conveying unit, and a conveying surface of the second conveying unit is lower than a conveying surface of the first conveying unit; a pre-stacking mechanism, which is disposed below the second conveying unit and can be lifted and lowered along the third direction to pass through the second conveying unit, and a stacking area is formed between the pre-stacking mechanism and an input end of the second conveying unit; a tray pushing mechanism, used for pushing a single tray located on the first conveying unit along the second direction, so that the single tray is pushed into the tray stacking area for tray stacking; The grabbing mechanism is located outside the output end of the second conveying unit and can move back and forth along the second direction, and is used for grabbing the trays stacked on the second conveying unit.

2. The automatic stacking device according to claim 1, characterized in that: The grabbing mechanism comprises: A clamping assembly, comprising a mounting beam and two moving frames, wherein the two moving frames are axially symmetrically connected to the mounting beam, and each of the moving frames is rotatably connected to a clamping plate at one end away from the mounting beam, and a clamping space for clamping a pallet is formed between the two clamping plates, and the moving frame can move along a first direction to adjust the size of the clamping space; a turning assembly connected to the clamping plate to drive the clamping plate to turn over; and A lifting component can move back and forth along the second direction, the lifting component has a lifting end that can perform lifting movement along the third direction, and the lifting end of the lifting component is connected to the mounting beam.

3. The automatic stacking device according to claim 2, characterized in that: The flip assembly includes a first driving member, a first rotating wheel, a second rotating wheel and a first transmission belt, wherein the first driving member is mounted on the mounting beam, and the output shaft of the first driving member is connected to the first rotating wheel, the second rotating wheel is mounted on the surface where the clamping plate is connected to the moving frame, and the first transmission belt is wound between the first rotating wheel and the second rotating wheel; When the first driving member drives the first rotating wheel to rotate, the first transmission belt pulls the second rotating wheel to rotate, so as to drive the clamping plate to flip.

4. The automatic stacking device according to claim 2, characterized in that: The grabbing mechanism also includes: A second driving member, which is mounted on the mounting beam, wherein an output shaft of the second driving member is connected to an end of the moving frame close to the mounting beam, and is used to push the moving frame to move along a first direction; A first slide rail is fixed on the surface of the mounting beam along the first direction. A first slider is slidably connected to the first slide rail, and the first slider is connected to the moving frame.

5. The automatic stacking device according to claim 2, characterized in that: The lifting assembly comprises: A support plate, which is disposed above the mounting beam and can move back and forth along the second direction, and a second guide wheel is rotatably provided on the support plate; A third driving member, which is mounted on the support plate, wherein an output shaft of the third driving member is connected to a first guide wheel, and a synchronous belt is wound between the first guide wheel and the second guide wheel; A connecting beam, which penetrates the supporting plate along the third direction, the connecting beam is provided with a lifting end connected to the mounting beam, and one end of the connecting beam close to the mounting beam is provided with a clamping member, the clamping member is used for clamping and connecting with the synchronous belt; When the third driving member drives the first guide wheel to rotate, the synchronous belt operates to pull the connecting beam to be lifted and lowered along the third direction, so as to drive the mounting beam to be lifted and lowered.

6. The automatic stacking device according to claim 5, characterized in that: It also includes a traverse mechanism, the traverse mechanism comprising: a bracket, which is arranged at one side of the output end of the second conveying unit, the bracket is provided with a second slide rail along the second direction, the second slide rail is slidably connected with a second slider, and the second slider is connected to the support plate; A fourth driving member is mounted on the bracket, the output shaft of the fourth driving member is connected to a driving wheel, a driven wheel is mounted on one end of the bracket away from the fourth driving member, a second transmission belt is connected between the driven wheel and the driving wheel, and the support plate is fixedly connected to the second transmission belt.

7. The automatic stacking device according to claim 1, characterized in that: The pre-stack mechanism comprises: a fixed plate, which is arranged below the second conveying unit; a baffle plate, which is located above the fixed plate and can pass through the second conveying unit along the third direction, and the stacking area is formed between the baffle plate and the input end of the second conveying unit; A lifting power member is fixed on the fixing plate, and an output shaft of the lifting power member passes through the fixing plate along the third direction and is connected to the baffle plate, so as to provide a driving force for driving the baffle plate.

8. The automatic stacking device according to claim 1, characterized in that: The push plate mechanism comprises: a pushing power member, which is fixed on the mounting beam and is located on a side of the first conveying unit away from the second conveying unit, and the output shaft of the pushing power member extends along the second direction; A push plate is connected to the output shaft of the pushing power member and is used to push a single tray located on the first conveying unit into the tray stacking area.

9. The automatic stacking device according to claim 1, characterized in that: The automatic stacking device further comprises a deviation correction mechanism, which comprises: A first deflection-correcting plate, which is fixed on the outside of the stacking area; A second deflection correcting plate, which is arranged on a side opposite to the first deflection correcting plate; A deflection correcting power member is connected to the second deflection correcting plate and is used to drive the second deflection correcting plate to approach or move away from the first deflection correcting plate along the first direction.

10. The automatic stacking device according to any one of claims 1 to 9, characterized in that: The self-stacking device further comprises an air blowing mechanism, wherein the air blowing mechanism comprises: A mounting frame, which is mounted above the first conveying unit; An air blowing pipe, which is adjustably mounted in the mounting frame, and the air blowing pipe is provided with a plurality of air blowing holes, and the air blowing holes are used to blow air toward the conveying surface of the first conveying unit; An air supply pipe, one end of which passes through the mounting frame and is connected to the air blowing pipe, and the other end of which is used to connect to an external air source.

11. The automatic stacking device according to claim 10, characterized in that: The automatic tray stacking device further comprises a tray blocking member, which is disposed below the first conveying unit and can be lifted and lowered along the third direction to pass through the first conveying unit, and is used for alternately blocking a single tray on the first conveying unit.

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