A composite suction cup fixture used in a whole-layer destacking system

Abstract

The present invention belongs to the technical field of suction cup clamps, and in particular relates to a composite suction cup clamp used in a whole-layer destacking system, comprising a buffer assembly, a frame assembly installed at the bottom end of the buffer assembly, four through holes opened at the top end of the frame assembly, and a lifting assembly installed together with the hole walls of the four through holes, an outer cover air duct assembly installed at the bottom end of the lifting assembly, and a suction cup assembly installed inside the outer cover air duct assembly. The composite suction cup clamp of the present invention ensures the stability of the product layer, and can safely and non-destructively grasp a whole layer of products of different specifications and styles, thereby improving the effect of the clamp. Moreover, when the stack type changes, there is no need to replace or set the suction cup, and the process speed is accelerated, thereby increasing productivity. It can even carry products that could only be transported manually before, and can be flexibly used in various applications such as warehousing and internal logistics. In addition, the composite suction cup clamp also has the function of product protection, thereby improving the reliability of the composite suction cup clamp.

Description

Technical Field

[0001] The invention belongs to the technical field of suction cup clamps, and in particular relates to a composite suction cup clamp used in a whole-layer destacking system. Background Art

[0002] Warehousing is a crucial component of modern logistics, playing a vital role in the logistics system and a key focus of manufacturers' research and planning. Efficient and effective warehousing can help manufacturers accelerate the flow of materials, reduce costs, ensure smooth production, and effectively control and manage resources. Warehousing often requires the destacking and stacking of goods.

[0003] The whole-layer destacking suction cup fixture currently on the domestic market is composed of large-area suction cups connected. The suction parts include flexible sponge sealing pads or corrugated suction cups that can perfectly fit the contour of each workpiece. The whole-layer handling suction cup system is equipped with a check valve to seal the idle area of ​​the suction parts. However, the whole-layer destacking suction cup fixture can generally only transport small and light product layers or product layers with gaps. For some large and heavy product layers or product layers with gaps, the suction cup fixture cannot be operated due to insufficient clamping force, and cannot be flexibly used for commodity transportation in warehousing and logistics. Manual handling of commodities is required, which affects the effectiveness of the whole-layer destacking suction cup fixture.

[0004] To this end, we propose a composite suction cup fixture used in the whole-layer destacking system to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a composite suction cup fixture for use in a whole-layer destacking system in order to solve the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a composite suction cup clamp used in a whole-layer destacking system, comprising a buffer assembly, a frame assembly installed at the bottom end of the buffer assembly, four through holes opened at the top of the frame assembly, and a lifting assembly installed on the walls of the four through holes, an outer cover air duct assembly installed at the bottom end of the lifting assembly, a suction cup assembly installed inside the outer cover air duct assembly, claw assemblies installed on the outer walls of the four side ends of the frame assembly, a top air duct assembly installed on the top of the outer cover air duct assembly, and grating assemblies installed on the surfaces of two symmetrically distributed claw assemblies.

[0007] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the buffer assembly includes a flange, a connecting frame, a proximity switch sensor, four guide rods and a buffer spring. The bottom ends of the four guide rods are fixedly connected to the top of the connecting frame, and the top ends of the four guide rods are movably connected to the holes on the flange. The top raised outer wall of the guide rod is fixedly connected to the upper surface of the flange by bolts. The buffer spring is sleeved on the outside of the guide rod. A threaded hole is opened on the upper surface of one of the guide rods, and the hole wall of the threaded hole is fixedly connected to a fixing frame by bolts. The inner wall of the fixing frame is fixedly connected to the outer wall of the proximity switch sensor.

[0008] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the frame assembly includes an aluminum bracket, a support plate is installed on the upper surface of the aluminum bracket, a through hole is opened on the upper surface of the support plate, and a guide sleeve is installed on the hole wall of the through hole, and the four inner walls of the aluminum bracket are installed with a first cylinder, and the outer end of the first cylinder is installed with a linear bearing, the outer wall of the linear bearing is fixedly installed with the top outer wall of the claw assembly, and a screw reduction elevator is installed on the outer wall at the middle position of the aluminum bracket. The inner walls of the four ends of the aluminum bracket are fixedly connected to two symmetrically distributed grating connecting plates, the upper surface of the aluminum bracket is fixedly connected to a junction box that cooperates with the adjacent first cylinder, and the upper surface of the support plate is fixedly connected to the regulating valve.

[0009] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the lifting assembly includes a connecting large plate, and guide supports are installed at the four corners of the upper surface of the connecting large plate. The upper surface of the guide support is fixedly connected to a guide shaft, and the outer wall of the guide shaft is in movably contact with the inner wall of the adjacent guide sleeve. The upper surface of the connecting large plate is connected to the bottom end flange of the screw reduction elevator, and the top end of the guide shaft is fixedly connected to a baffle, and the inner wall of the baffle is threadedly connected to a hexagonal screw.

[0010] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the suction cup assembly includes two connecting bars, the upper surface of one of the connecting bars is fixedly connected to the first pagoda joint by bolts, the lower surfaces of the two connecting bars are fixedly connected to the array suction cups, and the side walls of the array suction cups are fixedly connected to the digital pressure switches.

[0011] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the claw assembly includes a clamping main frame, the inner wall of the clamping main frame is fixedly connected to two connecting rods, the outer walls of the two connecting rods are commonly fixedly connected to a profile tube, the top outer wall of the clamping main frame is fixedly connected to a first drag chain module and a mounting bracket, the outer walls on both sides of the profile tube are fixedly connected to curtain clamps, the side ends of the mounting bracket are fixedly connected to a heightening seat, the outer wall of the heightening seat is fixedly connected to a nitrogen spring, the clamping main frame is connected to a first cylinder, and the connecting end of the nitrogen spring is connected to the outer wall of the frame assembly.

[0012] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the top air duct assembly includes a connecting seat, the upper surface of the connecting seat is fixedly connected to the air duct joint and the three-way joint, the outer wall of the air duct joint is fixedly connected to the first butterfly valve, and the three side ends of the three-way joint are fixedly connected to the second pagoda joint.

[0013] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the outer cover air duct assembly includes an outer cover, and the upper surface of the outer cover is provided with two rectangular through holes that cooperate with the connecting strips in the suction cup assembly. The four outer walls of the outer cover are connected with curtains, and the curtains and the side walls of the outer cover are commonly connected with spring rebound parts. The top end of the outer cover is fixedly connected with a ring joint and a fixed connecting pipe, and the side end of the fixed connecting pipe is fixedly connected with a second butterfly valve.

[0014] In the above-mentioned composite suction cup clamp used in the whole-layer destacking system, the grating assembly includes a safety grating, both ends of the safety grating are fixedly connected to the grating mounting seat, the outer wall of the safety grating is fixedly connected to two connecting vertical plates, the inner wall of the connecting vertical plates is fixedly connected to the linear guide rail, the outer wall of the safety grating is connected to the second cylinder through the connecting block, and the outer wall of the linear guide rail is connected to the second drag chain module.

[0015] Compared with existing technologies, the advantages of a composite suction cup fixture used in a whole-layer destacking system are:

[0016] 1. Through the set frame assembly, lifting assembly, outer cover air duct assembly and grating assembly, the composite suction cup fixture is first fixed on the robot and moved to the top of the stacking machine through the robot movement. Then the suction cup is driven downward by the screw speed reducer and the lifting assembly to make the suction cup fit the whole layer of products perfectly. Then the claw assembly around the outer cover air duct assembly drives the curtain to surround the whole layer of products to form a cavity. The top air duct assembly is connected to two blowers and started at the same time. The suction cup assembly works and forms a global vacuum suction cavity with the cavity, so that the composite suction cup fixture forms a large enough The clamping force sucks the entire layer of products tightly. When the vacuum degree reaches the target value, the robot lifts the clamp together with the entire layer of products. With the "air curtain concept", a global vacuum suction chamber is formed, thereby achieving extremely strong clamping force. The composite suction cup clamp ensures the stability of the product layer and can safely and non-destructively grasp the entire layer of products of different specifications and styles, thereby improving the effectiveness of the clamp. Moreover, when the stack type changes, there is no need to replace or set the suction cup, which speeds up the process and thus increases productivity. It can even carry products that could only be transported manually before, and can be flexibly used in various applications such as warehousing and internal logistics.

[0017] 2. Through the buffer assembly, when the composite suction cup fixture is working, the flange is connected to the robot flange, and the lower end is connected to the frame assembly. When the suction cup is pressed down and in contact with the product, the buffer spring acts as a buffer to prevent the product from being crushed. Until the buffer spring reaches a certain compression amount, the proximity switch sensor is triggered to start the suction cup and cavity working. This mechanism enables the composite suction cup fixture to have the function of product protection and improves the reliability of the composite suction cup fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a composite suction cup fixture provided by the present invention and applied to a whole-layer destacking system;

[0019] Figure 2 This is a structural schematic diagram of an exploded view of a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0020] Figure 3 This is a structural schematic diagram of a buffer assembly in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0021] Figure 4 This is a structural schematic diagram of a frame assembly in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0022] Figure 5 This is a structural schematic diagram of a lifting component in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0023] Figure 6This is a structural schematic diagram of an outer cover air duct assembly in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0024] Figure 7 This is a structural schematic diagram of a suction cup assembly in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0025] Figure 8 This is a structural schematic diagram of a claw assembly in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0026] Figure 9 This is a schematic structural diagram of a top air duct assembly in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention;

[0027] Figure 10 It is a structural schematic diagram of a grating component in a composite suction cup fixture used in a whole-layer destacking system provided by the present invention.

[0028] In the figure: 1. Buffer assembly; 11. Flange; 12. Connecting frame; 13. Proximity switch sensor; 14. Guide rod; 15. Buffer spring; 16. Fixing frame; 2. Frame assembly; 21. Aluminum bracket; 22. Support plate; 23. Guide sleeve; 24. First cylinder; 25. Linear bearing; 26. Screw reduction elevator; 27. Grating connecting plate; 28. Junction box; 29. ​​Control valve; 3. Lifting assembly; 31. Connecting plate; 32. Guide support; 33. Guide shaft; 34. Blocking piece; 35. Hexagon socket screw; 4. Outer cover air duct assembly; 41. Outer cover; 42. Rectangular through hole; 43. Curtain; 44. Spring rebound member; 45. Ring joint; 46. Fixing Fixed connecting pipe; 47, second butterfly valve; 5, suction cup assembly; 51, connecting strip; 52, first pagoda joint; 53, array suction cup; 54, digital pressure switch; 6, claw assembly; 61, clamping main frame; 62, connecting rod; 63, profile pipe; 64, first drag chain module; 65, mounting bracket; 66, curtain splint; 67, raising seat; 68, nitrogen spring; 7, top air duct assembly; 71, connecting seat; 72, air duct joint; 73, three-way joint; 74, first butterfly valve; 75, second pagoda joint; 8, grating assembly; 81, safety grating; 82, grating mounting seat; 83, connecting riser; 84, linear guide; 85, second cylinder; 86, second drag chain module. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figures 1-10 As shown, a composite suction cup clamp used in a whole-layer destacking system includes a buffer component 1, a frame component 2 is installed at the bottom end of the buffer component 1, four through holes are opened at the top of the frame component 2, and a lifting component 3 is installed on the hole walls of the four through holes, an outer cover air duct component 4 is installed at the bottom end of the lifting component 3, a suction cup component 5 is installed inside the outer cover air duct component 4, claw components 6 are installed on the outer walls of the four side ends of the frame component 2, and a top air duct component 7 is installed on the top of the outer cover air duct component 4, wherein the surfaces of two symmetrically distributed claw components 6 are installed with grating components 8.

[0031] The buffer assembly 1 includes a flange 11, a connecting frame 12, a proximity switch sensor 13, four guide rods 14 and a buffer spring 15. The bottom ends of the four guide rods 14 are fixedly connected to the top of the connecting frame 12, and the top ends of the four guide rods 14 are movably connected to the holes on the flange 11. The top raised outer wall of the guide rod 14 is fixedly connected to the upper surface of the flange 11 by bolts. The buffer spring 15 is sleeved on the outside of the guide rod 14. A threaded hole is opened on the upper surface of one of the guide rods 14, and the hole wall of the threaded hole is fixedly connected to a fixing frame 16 by bolts. The inner wall of the fixing frame 16 is fixedly connected to the outer wall of the proximity switch sensor 13. This mechanism enables the composite suction cup clamp to have the function of product protection and improves the reliability of the composite suction cup clamp.

[0032] The frame assembly 2 includes an aluminum bracket 21, and a support plate 22 is installed on the upper surface of the aluminum bracket 21. A through hole is opened on the upper surface of the support plate 22, and a guide sleeve 23 is installed on the wall of the through hole. The four inner walls of the aluminum bracket 21 are all installed with a first cylinder 24, and a linear bearing 25 is installed at the outer end of the first cylinder 24. The outer wall of the linear bearing 25 is fixedly installed with the top outer wall of the claw assembly 6. A screw reduction elevator 26 is installed on the outer wall at the middle position of the aluminum bracket 21. The inner walls of the four ends of the aluminum bracket 21 are fixedly connected to two symmetrically distributed grating connecting plates 27. The upper surface of the aluminum bracket 21 is fixedly connected to a junction box 28 that cooperates with the adjacent first cylinder 24. The upper surface of the support plate 22 is fixedly connected to the regulating valve 29. The first cylinder 24 can drive the claw assembly 6 to clamp and open with the cooperation of the junction box 28. The air pressure can be adjusted by the regulating valve 29 to control the movement speed of the claw assembly 6.

[0033] The lifting assembly 3 includes a connecting plate 31, and guide supports 32 are installed at the four corners of the upper surface of the connecting plate 31. The upper surface of the guide support 32 is fixedly connected to a guide shaft 33. The outer wall of the guide shaft 33 is in active contact with the inner wall of the adjacent guide sleeve 23. The upper surface of the connecting plate 31 is connected to the bottom end flange of the screw reduction elevator 26. The top end of the guide shaft 33 is fixedly connected to a baffle 34. The inner wall of the baffle 34 is threaded with a hexagon socket screw 35. The screw reduction elevator 26 is driven by a servo motor and a synchronous wheel to drive the lifting assembly 3 to move up and down.

[0034] The suction cup assembly 5 includes two connecting bars 51, the upper surface of one of the connecting bars 51 is fixedly connected to the first pagoda joint 52 by bolts, the lower surfaces of the two connecting bars 51 are fixedly connected to the array suction cups 53, and the side walls of the array suction cups 53 are fixedly connected to the digital pressure switches 54. The suction cup assembly 5 and the cavity form a global vacuum suction chamber, so that the composite suction cup fixture can form a sufficiently large clamping force to suck the entire layer of products tightly. When the vacuum degree reaches the target value, the robot lifts the fixture and the entire layer of products, and relies on the "air curtain concept" to form a global vacuum suction chamber, thereby achieving extremely strong clamping force. Using the vacuum whole-layer handling suction fixture system, various product layers or product layers with gaps can be easily transported.

[0035] The claw assembly 6 includes a clamping main frame 61, the inner wall of the clamping main frame 61 is fixedly connected to two connecting rods 62, the outer walls of the two connecting rods 62 are commonly fixedly connected to a profile tube 63, the top outer wall of the clamping main frame 61 is fixedly connected to a first drag chain module 64 and a mounting bracket 65, the outer walls on both sides of the profile tube 63 are fixedly connected to curtain clamps 66, the side ends of the mounting bracket 65 are fixedly connected to a heightening seat 67, the outer wall of the heightening seat 67 is fixedly connected to a nitrogen spring 68, the clamping main frame 61 is connected to the first cylinder 24, and the connecting end of the nitrogen spring 68 is connected to the outer wall of the frame assembly 2. This mechanism can clamp a whole layer of products of different specifications, and can even clamp a heavier whole layer of products.

[0036] The top air duct assembly 7 includes a connecting seat 71, the upper surface of the connecting seat 71 is fixedly connected to an air duct joint 72 and a three-way joint 73, the outer wall of the air duct joint 72 is fixedly connected to a first butterfly valve 74, and the three side ends of the three-way joint 73 are fixedly connected to a second pagoda joint 75. When it is necessary to form a global vacuum suction chamber, the first butterfly valve 74 is opened, and the external blower forms a suction state to form a global vacuum suction chamber. When it is necessary to close the global vacuum suction chamber, the first butterfly valve 74 is closed to block the external blower from communicating, which can reduce the frequent start and stop of the blower and reduce its service life.

[0037] The outer cover air duct assembly 4 includes an outer cover 41. The upper surface of the outer cover 41 is provided with two rectangular through holes 42 that cooperate with the connecting strips 51 in the suction cup assembly 5. The four outer walls of the outer cover 41 are connected with curtains 43. The curtains 43 and the side walls of the outer cover 41 are commonly connected with spring rebound parts 44. The top of the outer cover 41 is fixedly connected with an annular joint 45 and a fixed pipe 46. The side end of the fixed pipe 46 is fixedly connected with a second butterfly valve 47. The outer cover 41 is connected to the array suction cup 53 and moves up and down synchronously with the array suction cup 53. The curtain 43 has an automatic rebound function and can be freely retracted and extended following the movement of the first cylinder 24. When the product moves to the target position and needs to be put down, the second butterfly valve 47 is opened to communicate with the atmosphere to form a vacuum-breaking state, thereby putting the product down to the target position.

[0038] The grating assembly 8 includes a safety grating 81, both ends of which are fixedly connected to a grating mounting seat 82, the outer wall of the safety grating 81 is fixedly connected to two connecting vertical plates 83, the inner wall of the connecting vertical plates 83 is fixedly connected to a linear guide rail 84, the outer wall of the safety grating 81 is connected to a second cylinder 85 through a connecting block, and the outer wall of the linear guide rail 84 is connected to a second drag chain module 86. When the robot lifts the clamp and the entire layer of products to a certain height, the second cylinder 85 extends to drive the safety grating 81 to descend to detect material falling.

[0039] The operating principle of the present invention is described as follows: when the composite suction cup clamp is working, first the flange 11 is connected to the robot flange, and is moved to the top of the stacking required by the robot through the movement of the robot, and then the suction cup assembly 5 is driven downward by the screw reduction elevator 26 and the lifting assembly 3, so that the suction cup assembly 5 fits perfectly with the entire layer of products, and then the curtain 43 of the outer cover air duct assembly 4 is driven by the claw assemblies 6 on all sides to surround the entire layer of products to form a cavity, and the lower end of the connecting frame 12 in the buffer assembly 1 is connected to the frame assembly 2. When the suction cup assembly 5 is pressed down and in contact with the product, the buffer spring 15 acts as a buffer to prevent the product from being crushed. Until the buffer spring 15 reaches a certain amount of compression, the proximity switch sensor 13 is triggered to start the suction cup assembly 5 and the cavity to work, so that the composite suction cup clamp has the function of product protection, thereby improving the reliability of the composite suction cup clamp.

[0040] Two blowers connected to the top air duct assembly 7 are started at the same time. The suction cup assembly 5 works and forms a global vacuum suction chamber with the cavity, so that the composite suction cup fixture can form a sufficiently large clamping force to suck the entire layer of products tightly. When the vacuum degree reaches the target value, the robot lifts the fixture and the entire layer of products. Relying on the "air curtain concept", a global vacuum suction chamber is formed, thereby achieving extremely strong clamping force. The vacuum whole-layer handling gripper system can easily handle various product layers or product layers with gaps. At the same time, the grating assembly 8 descends to detect material drop. The robot moves the product to the target position where it needs to be stacked. The grating assembly 8 retracts, and the second butterfly valve 47 of the outer cover air duct assembly 4 opens to achieve a vacuum-breaking state, and the entire layer of products is placed at the target position. The composite suction cup fixture ensures the stability of the product layer and can safely and non-destructively grasp an entire layer of products of different specifications and styles, thereby improving the effectiveness of the fixture. Moreover, when the stack type changes, there is no need to replace or set the suction cup, which speeds up the process and thus increases productivity. It can even handle products that could only be transported manually before, and can be flexibly used in various applications such as warehousing and internal logistics.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A composite suction cup fixture used in a whole-layer destacking system, comprising a buffer component (1), characterized in that: The bottom end of the buffer assembly (1) is installed with a frame assembly (2), the top end of the frame assembly (2) is provided with four through holes, and the hole walls of the four through holes are jointly installed with a lifting assembly (3), the bottom end of the lifting assembly (3) is installed with an outer cover air duct assembly (4), the interior of the outer cover air duct assembly (4) is installed with a suction cup assembly (5), the outer walls of the four side ends of the frame assembly (2) are all installed with claw assemblies (6), the top end of the outer cover air duct assembly (4) is installed with a top air duct assembly (7), and the surfaces of two symmetrically distributed claw assemblies (6) are both installed with grating assemblies (8); The frame assembly (2) includes an aluminum bracket (21), a support plate (22) is installed on the upper surface of the aluminum bracket (21), a through hole is opened on the upper surface of the support plate (22), and a guide sleeve (23) is installed on the hole wall of the through hole, the four inner walls of the aluminum bracket (21) are all installed with a first cylinder (24), the outer end of the first cylinder (24) is installed with a linear bearing (25), the outer wall of the linear bearing (25) is fixedly installed with the outer wall of the top end of the claw assembly (6), a screw reduction elevator (26) is installed on the outer wall at the middle position of the aluminum bracket (21), the inner walls of the four ends of the aluminum bracket (21) are all fixedly connected with two symmetrically distributed grating connection plates (27), the upper surface of the aluminum bracket (21) is fixedly connected with a junction box (28) matched with the adjacent first cylinder (24), and the upper surface of the support plate (22) is fixedly connected to the regulating valve (29); The lifting assembly (3) includes a connecting plate (31), and guide supports (32) are installed at the four corners of the upper surface of the connecting plate (31). The upper surface of the guide support (32) is fixedly connected to a guide shaft (33), and the outer wall of the guide shaft (33) is in movable contact with the inner wall of the adjacent guide sleeve (23). The upper surface of the connecting plate (31) is connected to the bottom flange of the screw reduction elevator (26), and the top end of the guide shaft (33) is fixedly connected to a baffle (34), and the inner wall of the baffle (34) is threadedly connected to a hexagon socket screw (35); The claw assembly (6) includes a clamping main frame (61), the inner wall of the clamping main frame (61) is fixedly connected to two connecting rods (62), the outer walls of the two connecting rods (62) are fixedly connected to a profile tube (63), the top outer wall of the clamping main frame (61) is fixedly connected to a first drag chain module (64) and a mounting bracket (65), the outer walls of both sides of the profile tube (63) are fixedly connected to a curtain clamp (66), the side end of the mounting bracket (65) is fixedly connected to a heightening seat (67), the outer wall of the heightening seat (67) is fixedly connected to a nitrogen spring (68), the clamping main frame (61) is connected to the first cylinder (24), and the connecting end of the nitrogen spring (68) is connected to the outer wall of the frame assembly (2); The outer cover air duct assembly (4) comprises an outer cover (41), the upper surface of the outer cover (41) is provided with two rectangular through holes (42) which cooperate with the connecting strip (51) in the suction cup assembly (5), the four outer walls of the outer cover (41) are connected with curtains (43), the curtains (43) and the side walls of the outer cover (41) are commonly connected with a spring rebound member (44), the top end of the outer cover (41) is fixedly connected with an annular joint (45) and a fixed pipe (46), and the side end of the fixed pipe (46) is fixedly connected with a second butterfly valve (47).

2. The composite suction cup fixture used in the whole-layer destacking system according to claim 1, characterized in that: The buffer assembly (1) includes a flange (11), a connecting frame (12), a proximity switch sensor (13), four guide rods (14) and a buffer spring (15), wherein the bottom ends of the four guide rods (14) are fixedly connected to the top of the connecting frame (12), and the top ends of the four guide rods (14) are movably connected to the holes on the flange (11), and the top protruding outer wall of the guide rod (14) is fixedly connected to the upper surface of the flange (11) by bolts, and the buffer spring (15) is sleeved on the outside of the guide rod (14), and a threaded hole is opened on the upper surface of one of the guide rods (14), and the hole wall of the threaded hole is fixedly connected to a fixing frame (16) by bolts, and the inner wall of the fixing frame (16) is fixedly connected to the outer wall of the proximity switch sensor (13).

3. The composite suction cup fixture used in the whole-layer destacking system according to claim 1, characterized in that: The suction cup assembly (5) comprises two connecting bars (51), wherein the upper surface of one of the connecting bars (51) is fixedly connected to a first pagoda joint (52) via bolts, the lower surfaces of the two connecting bars (51) are fixedly connected to array suction cups (53), and the side walls of the array suction cups (53) are fixedly connected to digital pressure switches (54).

4. The composite suction cup fixture used in the whole-layer destacking system according to claim 1, characterized in that: The top air duct assembly (7) comprises a connecting seat (71), the upper surface of the connecting seat (71) being fixedly connected to an air duct joint (72) and a three-way joint (73), the outer wall of the air duct joint (72) being fixedly connected to a first butterfly valve (74), and the three side ends of the three-way joint (73) being fixedly connected to a second pagoda joint (75).

5. The composite suction cup fixture used in the whole-layer destacking system according to claim 1, characterized in that: The grating assembly (8) includes a safety grating (81), both ends of the safety grating (81) are fixedly connected to a grating mounting seat (82), the outer wall of the safety grating (81) is fixedly connected to two connecting vertical plates (83), the inner wall of the connecting vertical plates (83) is fixedly connected to a linear guide rail (84), the outer wall of the safety grating (81) is connected to a second cylinder (85) via a connecting block, and the outer wall of the linear guide rail (84) is connected to a second drag chain module (86).

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