Sucker device with anti-falling structure

Abstract

This utility model discloses a suction cup device with an anti-fall structure, including a suction cup mounting plate, a suction cup disposed at the bottom of the suction cup mounting plate, a lifting drive assembly for driving the suction cup mounting plate to rise and fall, and a top plate for mounting and fixing the lifting drive assembly. The lifting drive assembly is connected to a connecting shaft, and the suction cup mounting plate is fixed on the connecting shaft. An anti-fall component for preventing items from falling after detaching from the suction cup is rotatably disposed on the connecting shaft. The anti-fall component includes a rotating plate rotatably connected to the connecting shaft and a bottom plate located below the suction cup. The rotating plate is connected to a connecting plate located beside the suction cup, and the bottom plate is movably connected to the connecting plate. A rotation drive assembly for driving the rotating plate to rotate is disposed on the top plate, and a lateral drive assembly for driving the bottom plate to block or move away from below the suction cup is disposed on the rotating plate. The anti-fall component can change the position relative to the suction cup, enabling the suction cup device to pick up and place goods from multiple angles, thereby realizing the first-in-first-out handling of goods.

Description

Technical Field

[0001] This utility model relates to the field of suction cup devices, and in particular to a suction cup device with an anti-drop structure. Background Technology

[0002] The suction cup device uses a negative pressure source such as a vacuum pump or vacuum generator to form a sealed chamber between the suction cup and the surface of the goods and remove the air from the chamber. It uses the pressure difference between the inside and outside of the chamber to generate an adsorption force, thereby achieving non-damaging gripping and handling of goods. With its advantages such as "non-contact clamping", "adaptability to various surface morphologies" and "stable handling process", the suction cup device has been widely used in scenarios such as glass handling, steel plate transfer, carton stacking, and electronic component assembly.

[0003] In existing technologies, when a suction cup device handles goods, fluctuations in transport speed can cause the goods to shake, disrupting the low-pressure environment inside the suction cup and causing the goods to fall, thus affecting their safety. To address this, an anti-fall structure is installed on the suction cup device. This anti-fall structure includes a base plate and a drive base plate that shields or moves away from the drive cylinder below the suction cup. However, in this structure, because the anti-fall structure is always located on one side of the suction cup, the suction cup device can only pick up and place goods from one direction. When used in a warehousing system, it is impossible to perform first-in-first-out handling of goods, which can easily lead to goods accumulating for too long.

[0004] Therefore, it is necessary to design a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a suction cup device with an anti-fall structure. The anti-fall component includes a rotating plate rotatably connected to a connecting shaft and a base plate located below the suction cup. The entire anti-fall component is rotated by a rotation drive assembly, which allows the anti-fall component to change its position relative to the suction cup. This enables the suction cup device to pick up and put down goods from multiple angles, thereby achieving first-in-first-out handling of goods and avoiding the accumulation of advanced goods for too long. At the same time, the lateral drive assembly can drive the base plate to block or move away from under the suction cup, preventing goods from falling from the suction cup during transportation and causing safety hazards.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A suction cup device with an anti-fall structure includes a suction cup mounting plate, a suction cup disposed at the bottom of the suction cup mounting plate, a lifting drive assembly for driving the suction cup mounting plate to rise and fall, and a top plate for mounting and fixing the lifting drive assembly. The lifting drive assembly is connected to a connecting shaft, the suction cup mounting plate is fixed on the connecting shaft, and an anti-fall device is rotatably provided on the connecting shaft to prevent items from falling after detaching from the suction cup. The anti-fall device includes a rotating plate rotatably connected to the connecting shaft and a bottom plate located below the suction cup. The rotating plate is connected to a connecting plate located beside the suction cup, and the bottom plate is movably connected to the connecting plate. The top plate is provided with a rotation drive assembly for driving the rotating plate to rotate, and the rotating plate is provided with a lateral drive assembly for driving the bottom plate to block or move away from below the suction cup.

[0007] As a preferred embodiment, the rotary drive assembly includes a rack movably disposed at the bottom of the top plate, a gear fixed to the rotating plate and meshing with the rack, and a first lateral movement cylinder that drives the rack to move, thereby driving the gear to rotate.

[0008] As a preferred embodiment, a first bushing is fixed on the top plate and sleeved outside the connecting shaft, a bearing seat is fixed on the rotating plate, a bearing is provided in the bearing seat and rotatably connected to the outer periphery of the first bushing, and the gear is fixed on the bearing seat.

[0009] As a preferred embodiment, the top plate is equipped with a power-off protection device corresponding to the gear. The power-off protection device includes a locking member for locking the gear, an elastic member for driving the locking member to move toward the gear, and a second lateral movement cylinder for driving the locking member to overcome the elastic force of the elastic member. The locking member has a locked state and an unlocked state. In the locked state, the driving force of the second lateral movement cylinder is disconnected, and the elastic force of the elastic member drives the locking member to move toward the gear until the gear is locked, and the gear is fixed at the current rotation angle. In the unlocked state, the second lateral movement cylinder drives the locking member to overcome the elastic force of the elastic member and disengage from the gear, and keeps the locking member in the disengaged state, and the gear can rotate.

[0010] As a preferred embodiment, the suction cup mounting plate is provided with a second bushing, and the suction cup mounting plate is movably fitted onto the connecting shaft via the second bushing. The bottom of the suction cup mounting plate corresponding to the connecting shaft is provided with a first fiber optic sensor for anti-collision protection of the suction cup.

[0011] As a preferred embodiment, the bottom end of the connecting shaft is provided with a first trigger switch for anti-collision protection of the suction cup, and the trigger head of the first trigger switch abuts against the bottom of the second bushing.

[0012] As a preferred embodiment, the lifting drive assembly includes a cylinder mounting plate disposed on the top of the top plate and a lifting and moving cylinder fixed to the cylinder mounting plate, wherein the bottom of the cylinder mounting plate is supported and fixed to the top of the top plate by a support rod.

[0013] As a preferred embodiment, the bottom of the connecting plate is provided with a plurality of guide rods arranged at intervals, and end blocks are fixed at both ends of the guide rods. The bottom plate is connected to the bottom of two end blocks. The lateral drive assembly includes a third lateral movement cylinder and a linkage rod connected to the third lateral movement cylinder. The linkage rod is connected to an end block located on the side of the connecting plate away from the suction cup. The third lateral movement cylinder drives the bottom plate to move relative to the connecting plate through the linkage rod.

[0014] As a preferred embodiment, the base plate is movably connected to the bottom of the two end blocks. The end blocks are provided with a second fiber optic sensor for anti-collision protection of the base plate. Correspondingly, a shielding member is provided on the top of the base plate corresponding to the second fiber optic sensor.

[0015] As a preferred embodiment, anti-collision bars are movably connected to the outer sides of both end blocks. A second trigger switch and a third fiber optic sensor are provided on the outer side of the end blocks for anti-collision protection of the anti-collision bars. Correspondingly, the anti-collision bars are provided with abutment members together with the second trigger switch and the third fiber optic sensor.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution: The main features include a rotating plate rotatably connected to the connecting shaft and a base plate located below the suction cup. The entire anti-fall device is rotated by a rotation drive assembly, which allows the anti-fall device to change its position relative to the suction cup. This enables the suction cup device to pick up and put down goods from multiple angles, thus achieving first-in-first-out handling of goods and avoiding the accumulation of advanced goods for too long. At the same time, the lateral drive assembly can drive the base plate to block or move away from under the suction cup, preventing goods from falling from the suction cup during transportation and causing safety hazards.

[0017] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0018] Figure 1 This is a perspective view of a preferred embodiment of the present utility model; Figure 2 This is a perspective view of a preferred embodiment of the present invention. Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a three-dimensional schematic diagram from another perspective of a preferred embodiment of the present utility model; Figure 5 This is a cross-sectional schematic diagram of a preferred embodiment of the present invention; Figure 6 This is a schematic diagram of the installation of the power failure protection device according to a preferred embodiment of the present invention.

[0019] Explanation of reference numerals in the attached diagram: 10. Suction cup mounting plate; 11. Second bushing; 20. Suction cup; 30. Lifting drive assembly; 31. Connecting shaft; 311. Lower limit component; 32. Cylinder mounting plate; 33. Lifting and moving cylinder; 34. Support rod; 40. Top plate; 41. Fixing block; 42. Left limiting component; 43. Right limiting component; 44. First bushing; 45. Power failure protection device; 451. Locking component; 452. Elastic element; 453. Second lateral movement cylinder; 454. Mounting base; 50. Anti-drop components; 51. Rotating plate; 52. Base plate; 53. Connecting plate; 531. Guide rod; 532. End block; 533. Anti-collision bar; 60. Rotary drive assembly; 61. Rack; 62. Gear; 63. First transverse movement cylinder; 64. Moving block; 65. Connecting block; 70. Bearing housing; 80. Bearing; 91. First fiber optic sensor; 92. First trigger switch; 93. Second fiber optic sensor; 94. Obstruction; 95. Second trigger switch; 96. Third fiber optic sensor; 97. Abutment component; 98. Fourth fiber optic sensor; 99. Fifth fiber optic sensor; 100. Lateral drive assembly; 1001, Third lateral movement cylinder; 1002, Linkage rod. Detailed Implementation

[0020] First, it should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Please refer to Figures 1 to 6As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a suction cup mounting plate 10, a suction cup 20 disposed at the bottom of the suction cup mounting plate 10, a lifting drive assembly 30 for driving the suction cup mounting plate 10 to rise and fall, and a top plate 40 for mounting and fixing the lifting drive assembly 30.

[0022] See Figure 1 As shown, the suction cup 20 is elongated, and the front and rear ends of the suction cup 20 extend beyond the front and rear ends of the suction cup mounting plate 10. In this embodiment, the suction cup 20 is provided with two suction cups arranged at a left-right distance.

[0023] The lifting drive assembly 30 is connected to a connecting shaft 31, and the suction cup mounting plate 10 is fixed on the connecting shaft 31; specifically, see [link to relevant documentation]. Figure 1 and Figure 2 As shown, the lifting drive assembly 30 includes a cylinder mounting plate 32 disposed on the top of the top plate 40 and a lifting and moving cylinder 33 fixed to the cylinder mounting plate 32. The bottom of the cylinder mounting plate 32 is supported and fixed to the top of the top plate 40 by a support rod 34. Preferably, the connecting shaft 31 is a spline shaft, which enables the components slidably disposed on it to move up and down precisely.

[0024] The connecting shaft 31 is rotatably provided with an anti-fall component 50 to prevent items from falling after detaching from the suction cup 20. The anti-fall component 50 includes a rotating plate 51 rotatably connected to the connecting shaft 31 and a bottom plate 52 located below the suction cup 20. The rotating plate 51 is connected to a connecting plate 53 located on the side of the suction cup 20. The bottom plate 52 is movably connected to the connecting plate 53. The top plate 40 is provided with a rotation drive assembly 60 for driving the rotating plate 51 to rotate. Specifically, see Figure 1 and Figure 6As shown, the rotary drive assembly 60 includes a rack 61 movably disposed at the bottom of the top plate 40, a gear 62 fixed to the rotating plate 51 and meshing with the rack 61, and a first transverse movement cylinder 63 that drives the rack 61 to move. The first transverse movement cylinder 63 drives the rack 61 to move, thereby driving the gear 62 to rotate. A fixing block 41 is disposed at the bottom of the top plate 40, and the rack 61 is slidably connected to the rear side of the fixing block 41. The first transverse movement cylinder 63 is disposed at the top of the top plate 40 and connected to a moving block 64. The moving block 64 is connected to the rack 61 through the top plate 40 via the connecting block 65, so that the first transverse moving cylinder 63 drives the rack 61 to move through the connecting block 65. Preferably, the top plate 40 is provided with a left limiting member 42 and a right limiting member 43 corresponding to the connecting block 65 to prevent the first transverse moving cylinder 63 from moving excessively. The top plate 40 is provided with a fourth fiber optic sensor 98 corresponding to the moving block 64. When the first transverse moving cylinder 63 drives the moving block 64 to move to trigger the fourth fiber optic sensor 98, it indicates that the connecting plate 53 is located behind the suction cup 20.

[0025] See Figure 5 As shown, a first bushing 44 is fixed on the top plate 40 and sleeved on the connecting shaft 31. A bearing seat 70 is fixed on the rotating plate 51. A bearing 80 is rotatably connected to the outer periphery of the first bushing 44 in the bearing seat 70. The gear 62 is fixed on the bearing seat 70. The inner wall of the first bushing 44 is provided with a guide groove that matches the spline shaft. The bearing 80 ensures that the gear 62 rotates smoothly. The suction cup mounting plate 10 is provided with a second bushing 11. The suction cup mounting plate 10 is movably sleeved on the connecting shaft 31 through the second bushing 11. The bottom end of the connecting shaft 31 is provided with a lower limit member 311. The lower limit member 311 can prevent the suction cup mounting plate 10 from falling off the connecting shaft 31. The suction cup mounting plate 10 is equipped with a first fiber optic sensor 91 at the bottom of the connecting shaft 31 for anti-collision protection of the suction cup 20. Initially, the first fiber optic sensor 91 is blocked by the bottom of the connecting shaft 31. When the suction cup mounting plate 10 moves excessively upwards, the bottom of the connecting shaft 31 moves away from the blockage of the first fiber optic sensor 91, thus sending a feedback signal to the lifting cylinder 33, causing the lifting cylinder 33 to stop operating. A first trigger switch 92 for anti-collision protection of the suction cup 20 is provided at the bottom of the connecting shaft 31. The first trigger switch 92 is located on the lower limit member 311. The trigger head of the first trigger switch 92 abuts against the bottom of the second bushing 11. In the initial state, the bottom of the second bushing 11 is abutted against the trigger head of the first trigger switch 92 due to the influence of the weight of the suction cup mounting plate 10 and the suction cup 20. When the suction cup mounting plate 10 moves upward excessively, the bottom of the second bushing 11 will disengage from the trigger head of the first trigger switch 92, thereby stopping the lifting and moving cylinder 33. The joint setting of the first trigger switch 92 and the first fiber optic sensor 91 provides double protection for the connecting shaft 31.

[0026] Preferred options, please refer to Figure 6 As shown, the top plate 40 is equipped with a power failure protection device 45 corresponding to the gear 62. The power failure protection device 45 includes a locking member 451 for locking the gear 62, an elastic member 452 for driving the locking member 451 to move toward the gear 62, and a second lateral movement cylinder 453 for driving the locking member 451 to overcome the elastic force of the elastic member 452. The locking member 451 has a locked state and an unlocked state. In the locked state, the driving force of the second lateral movement cylinder 453 is disconnected, and the elastic force of the elastic member 452 drives the locking member 451 to move toward the gear 62 until the gear 62 is locked, and the gear 62 is fixed at the current rotation angle. In the unlocked state, the second lateral movement cylinder 453... The cylinder 453 drives the locking member 451 to overcome the elastic force of the elastic member 452 and disengage from the gear 62, keeping the locking member 451 in the disengaged state. The gear 62 can rotate. During the use of the suction cup 20 device, the power failure protection device 45 is always in the unlocked state. In the event of a sudden power failure, the cylinder will not be driven by air, and the power failure protection device 45 will always be in the locked state under the action of the elastic member 452. The power failure protection device 45 also includes a mounting base 454 set at the bottom of the top plate 40. The locking member 451 and the second transverse moving cylinder 453 are both set on the mounting base 454, and the elastic member 452 is set between the locking member 451 and the mounting base 454.

[0027] The rotating plate 51 is provided with a drive base plate 52 that blocks or moves away from the lateral drive assembly 100 below the suction cup 20; specifically, see [reference needed]. Figures 1 to 3As shown, the bottom of the connecting plate 53 is provided with a plurality of guide rods 531 arranged at intervals. Both ends of the guide rods 531 are fixed with end blocks 532. The bottom plate 52 is connected to the bottom of the two end blocks 532. The lateral drive assembly 100 includes a third lateral movement cylinder 1001 and a linkage rod 1002 connected to the third lateral movement cylinder 1001. The linkage rod 1002 is connected to the end block 532 located on the side of the connecting plate 53 away from the suction cup 20. The third lateral movement cylinder 1001 drives the bottom plate 52 to move relative to the connecting plate 53 through the linkage rod 1002. A fifth fiber optic sensor 99 is provided at the connecting plate 53 corresponding to the linkage rod 1002. When the third lateral movement cylinder 1001 drives the linkage rod 1002 to move to trigger the fifth fiber optic sensor 99, it indicates that the bottom plate 52 is blocking the suction cup 20. Preferably, the base plate 52 is movably connected vertically to the bottom of the two end blocks 532. Each end block 532 is equipped with a second fiber optic sensor 93 for anti-collision protection of the base plate 52. Correspondingly, a shielding member 94 is provided on the top of the base plate 52 corresponding to the second fiber optic sensor 93. Anti-collision bars 533 are movably connected to the outer sides of both end blocks 532. A second trigger switch 95 and a third fiber optic sensor 96 are provided on the outer side of each end block 532 for anti-collision protection of the anti-collision bars 533. The anti-collision bar 533 is provided with abutment 97 together with the second trigger switch 95 and the third fiber optic sensor 96. Springs are provided between the end block 532 and the base plate 52, and between the end block 532 and the anti-collision bar 533. The springs provide elastic buffering function for both the base plate 52 and the anti-collision bar 533. The principle of the second fiber optic sensor 93 and the third fiber optic sensor 96 is the same as that of the first fiber optic sensor 91. The principle of the second trigger switch 95 is the same as that of the first trigger switch 92, and will not be described in detail here.

[0028] The key design feature of this utility model is: The main features include a rotating plate rotatably connected to the connecting shaft and a base plate located below the suction cup. The entire anti-fall device is rotated by a rotation drive assembly, which allows the anti-fall device to change its position relative to the suction cup. This enables the suction cup device to pick up and put down goods from multiple angles, thus achieving first-in-first-out handling of goods and avoiding the accumulation of advanced goods for too long. At the same time, the lateral drive assembly can drive the base plate to block or move away from under the suction cup, preventing goods from falling from the suction cup during transportation and causing safety hazards.

[0029] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A suction cup device with an anti-fall structure, comprising a suction cup mounting plate, a suction cup disposed at the bottom of the suction cup mounting plate, a lifting drive assembly for driving the suction cup mounting plate to rise and fall, and a top plate for mounting and fixing the lifting drive assembly; characterized in that: The lifting drive assembly is connected to a connecting shaft, the suction cup mounting plate is fixed on the connecting shaft, and an anti-fall device is rotatably provided on the connecting shaft to prevent items from falling after detaching from the suction cup. The anti-fall device includes a rotating plate rotatably connected to the connecting shaft and a bottom plate located below the suction cup. The rotating plate is connected to a connecting plate located beside the suction cup, and the bottom plate is movably connected to the connecting plate. The top plate is provided with a rotation drive assembly for driving the rotating plate to rotate, and the rotating plate is provided with a lateral drive assembly for driving the bottom plate to block or move away from below the suction cup.

2. The suction cup device having a fall-preventing structure according to claim 1, characterized in that: The rotary drive assembly includes a rack movably disposed at the bottom of the top plate, a gear fixed to the rotating plate and meshing with the rack, and a first lateral movement cylinder that drives the rack to move, thereby driving the gear to rotate.

3. The suction cup device having an anti-falling structure according to claim 2, characterized in that: The top plate is fixed with a first bushing sleeved outside the connecting shaft, the rotating plate is fixed with a bearing seat, the bearing seat is provided with a bearing rotatably connected to the outer periphery of the first bushing, and the gear is fixed on the bearing seat.

4. The suction cup device having an anti-falling structure according to claim 2, characterized in that: The top plate is equipped with a power-off protection device corresponding to the gear. The power-off protection device includes a locking member for locking the gear, an elastic member for driving the locking member to move toward the gear, and a second lateral movement cylinder for driving the locking member to overcome the elastic force of the elastic member. The locking member has a locked state and an unlocked state. In the locked state, the driving force of the second lateral movement cylinder is disconnected, and the elastic force of the elastic member drives the locking member to move toward the gear until the gear is locked, and the gear is fixed at the current rotation angle. In the unlocked state, the second lateral movement cylinder drives the locking member to overcome the elastic force of the elastic member and disengage from the gear, and keeps the locking member in the disengaged state, and the gear can rotate.

5. The suction cup device having an anti-falling structure according to claim 1, characterized in that: The suction cup mounting plate is provided with a second bushing, and the suction cup mounting plate is movably fitted onto the connecting shaft through the second bushing. The bottom of the suction cup mounting plate corresponding to the connecting shaft is provided with a first fiber optic sensor for anti-collision protection of the suction cup.

6. A suction cup device with an anti-drop structure according to claim 5, characterized in that: The bottom end of the connecting shaft is provided with a first trigger switch for anti-collision protection of the suction cup, and the trigger head of the first trigger switch abuts against the bottom of the second bushing.

7. The suction cup device having an anti-falling structure according to claim 1, characterized in that: The lifting drive assembly includes a cylinder mounting plate disposed on the top of the top plate and a lifting and moving cylinder fixed to the cylinder mounting plate. The bottom of the cylinder mounting plate is fixed to the top of the top plate by a support rod.

8. The suction cup device having an anti-falling structure according to claim 1, characterized in that: The bottom of the connecting plate is provided with a plurality of guide rods arranged at intervals. Both ends of the guide rods are fixed with end blocks. The bottom plate is connected to the bottom of two end blocks. The lateral drive assembly includes a third lateral movement cylinder and a linkage rod connected to the third lateral movement cylinder. The linkage rod is connected to an end block located on the side of the connecting plate away from the suction cup. The third lateral movement cylinder drives the bottom plate to move relative to the connecting plate through the linkage rod.

9. The suction cup device having an anti-falling structure according to claim 1, characterized in that: The base plate is movably connected to the bottom of the two end blocks. The end blocks are equipped with a second fiber optic sensor for anti-collision protection of the base plate. Correspondingly, the top of the base plate is equipped with a shielding component corresponding to the second fiber optic sensor.

10. A suction cup device with an anti-drop structure according to claim 1, characterized in that: Both end blocks are movably connected to anti-collision bars on their outer sides. The outer side of each end block is provided with a second trigger switch and a third fiber optic sensor for anti-collision protection of the anti-collision bars. Correspondingly, the anti-collision bars are provided with abutment members together with the second trigger switch and the third fiber optic sensor.

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