A lifting suction cup device

Abstract

The present application relates to a lifting suction cup device, comprising a cylinder, the middle portion of which is connected to an air pump, two pistons disposed within the cylinder, the two pistons being distributed along the length of the cylinder, a push rod disposed on the side of each piston away from the other piston, a positioning rod extending downwardly from the push rod, and a plurality of suction cups disposed on the lower surface of the middle portion of the cylinder. This application facilitates alignment of the suction cup device with a plate.

Description

Technical Field

[0001] The present application relates to the technical field of lifting equipment, and in particular to a lifting suction cup device. Background Art

[0002] Vacuum suction cups, also known as vacuum lifters, are one type of vacuum equipment actuator. Generally speaking, using vacuum suction cups is the most cost-effective method for gripping products. Vacuum suction cups come in a variety of styles. Rubber cups can operate at high temperatures, while silicone rubber cups are ideal for gripping products with rough surfaces.

[0003] In the prior art, when a lifting suction cup device is used to lift a plate, in order to ensure the stability of the lifting, the suction cup device needs to be located in the middle of the plate, and then the suction cup is adsorbed on the surface of the plate. However, during lifting, the position of the suction cup device needs to be manually adjusted to align the suction cup device with the middle of the plate, and the alignment efficiency is slow. Summary of the Invention

[0004] In order to facilitate the suction cup device to align with the plate, the present application provides a lifting suction cup device.

[0005] The present application provides a lifting suction cup device that adopts the following technical solution:

[0006] A lifting suction cup device includes a cylinder body, the middle part of the cylinder body is connected to an air pump, two pistons are arranged in the cylinder body, the two pistons are distributed along the length direction of the cylinder body, a push rod is provided on the side of the piston away from the other piston, a positioning rod is extended downward from the push rod, and several suction cups are provided on the lower surface of the cylinder body in the middle.

[0007] By adopting the above technical solution, when the plate needs to be lifted, the entire device is first driven close to the plate so that the two positioning rods are located on both sides of the plate, and then the air in the cylinder is sucked out by the vacuum pump, so that the two pistons slide in the direction of approaching each other, thereby driving the two positioning rods to move in the direction of approaching each other until the pistons abut against the limit blocks. At this time, since the distance between the two positioning rods is equal to the width of the plate, the suction cup will be automatically centered, thereby automatically adjusting the position of the suction cup device, thereby improving the efficiency of the suction cup device to align with the plate.

[0008] Optionally, a first connecting pipe is provided in the middle of the suction cup, a first communicating hole is provided below the cylinder body, the first connecting pipe is connected to the first communicating hole, and the cylinder body is provided with a control component located at the first communicating hole for controlling the connecting state of the first communicating hole.

[0009] By adopting the above technical solution, after the suction cup is automatically centered, the first connecting hole can be opened through the control component. At this time, the vacuum fan can extract the air in the suction cup through the first connecting hole, so that the suction cup is adsorbed on the plate, thereby lifting the plate.

[0010] Optionally, the control component includes a first closing plate and a second closing plate, the first closing plate having a first sliding cavity, the second closing plate slidingly connected to the first sliding cavity along the length direction of the cylinder body, the upper surface of the first closing plate is provided with a second communicating hole connected to the first communicating hole, the second communicating hole is connected to the first sliding cavity, the second closing plate is provided with a first through hole, the side surface of the second closing plate abuts against the piston, when the second closing plate is fully inserted into the first sliding cavity, the first through hole and the second communicating hole are coaxially arranged, and the first closing plate is provided with a first elastic member that forces the second closing plate to slide in a direction away from the first closing plate.

[0011] By adopting the above technical solution, during the positioning process, the piston slides, and during the sliding process, the piston is forced to abut against the second closing plate, thereby forcing the second closing plate to slide. When the piston moves to abut against the limit block, the second closing plate is completely located in the first sliding cavity. At this time, the first through hole is connected to the second connecting hole, and the second connecting hole is connected to the first connecting hole, so that the vacuum pump can suck out the air in the suction cup to adsorb the plate, thereby lifting the plate, and the second closing plate can be forced to close the first connecting hole through the first elastic member.

[0012] Optionally, the piston and the lower inner wall of the cylinder body have a gap for the second closing plate to pass through, and a blocking plate is provided at one end of the push rod close to the piston, and the blocking plate is slidably connected to the piston in the vertical direction. Under normal circumstances, the blocking plate blocks the second closing plate, and the first connecting pipe is provided with an air leakage hole, and the first connecting pipe is provided with a third closing plate for closing the air leakage hole. A connecting piece is provided between the second closing plate and the third closing plate, and the second closing plate can drive the third closing plate to slide through the connecting piece to close the air leakage hole.

[0013] By adopting the above technical solution, after the plate is hoisted, the plate needs to be placed on the workbench. At this time, the suction cup device is first moved to the top of the workbench, and the lower end face of the positioning rod is in contact with the workbench surface. Then, the cylinder body is moved in the direction close to the workbench surface. During the movement, the push rod moves upward, thereby driving the blocking plate to move to avoid the second closing plate. The second closing plate slides in the direction away from the first closing plate under the action of the first elastic member. During the sliding process, the second closing plate drives the third closing plate to slide through the connecting member, thereby opening the air vent, allowing air to enter the suction cup. After the air enters the suction cup, the suction cup releases the plate, thereby placing the suction cup on the workbench surface.

[0014] Optionally, the first connecting pipe is provided with a second elastic member for forcing the third closing plate to open the air leakage hole.

[0015] By adopting the above technical solution, a second elastic member is provided, so that when the plate needs to be unloaded, the second closing plate slides away from the first sliding cavity, and the third closing plate can open the air vent under the action of the third elastic member, allowing air to enter the suction cup to unload the plate.

[0016] Optionally, a limit block is provided in the cylinder body for limiting the piston, and the limit block is located between the two pistons. When the piston abuts against the limit block, the gap between the two positioning rods is equal to the width of the iron plate to be hoisted.

[0017] Optionally, the piston is rotatably connected to a swing rod, the limit block is downwardly extended with a blocking block, and a hooking block for hooking on the blocking block is provided on a side of the swing rod close to the limit block.

[0018] By adopting the above technical solution, a hooking block is provided. When the two pistons slide in the direction of approaching each other, the suction cup is adsorbed on the plate to lift the plate. Then, the hooking block can be hooked on the blocking block by rotating the swing rod to further fix the position of the positioning rod, so that the positioning rod can auxiliary clamp the plate to improve the stability of the lifting.

[0019] Optionally, a wedge-shaped surface is provided on the side of the hook block close to the blocking block. When the piston moves toward the limit block, the wedge-shaped surface forces the swing rod to rotate so that the hook block avoids the blocking block. The piston is provided with a third elastic member that forces the swing rod to rotate in the direction close to the blocking block.

[0020] By adopting the above technical solution, when the two pistons slide in the direction of approaching each other, the hook block on the swing arm abuts against the blocking block, and the pistons continue to slide in the direction of approaching each other under the action of the vacuum pump. At this time, the swing arm slides in the direction away from the swing arm under the action of the wedge surface, thereby avoiding the blocking block. When the hook block moves to the other side of the blocking block, the third elastic member forces the swing arm to rotate, so that the hook block is hooked on the blocking block to fix the position of the piston.

[0021] Optionally, the piston is provided with a drive assembly, which includes a gear and a rack. The piston transmission is provided with a rotating rod, the gear is coaxially arranged on the side of the rotating rod close to the blocking plate, the lower end of the swing rod is fixedly connected to the other end of the rotating rod, the rack is arranged on the upper surface of the blocking plate, the gear is engaged with the rack, and the blocking block is provided with a fourth elastic member that forces the piston to slide in a direction away from the other piston.

[0022] By adopting the above technical solution, when the plate is placed on the workbench, the blocking plate slides upward in the vertical direction. At this time, the rack moves upward with the blocking plate. During the upward movement of the rack, the gear is driven to rotate, thereby causing the rotating rod to rotate, causing the hook block to rotate to a position to avoid the blocking block, thereby unlocking the piston.

[0023] Optionally, the positioning rod is provided with a plurality of clamping rods, and the clamping rod is provided with an abutment assembly for abutting against the side of the plate, and the abutment assembly includes two first rotating rollers and a belt body, the axial directions of the two first rotating rollers are set horizontally, and the two ends of the first rotating rollers are rotatably connected to the clamping rods, and the belt body is wound between the two first rotating rollers, and the clamping rod is provided with a second rotating roller for supporting the belt body.

[0024] By adopting the above technical solution, an abutment assembly is provided, and the clamping rod clamps the plate. Since the push rod needs to slide relative to the plate when unloading the plate, an abutment assembly is provided. On the one hand, during positioning and lifting, the belt body can abut against the plate to clamp the plate, and during unloading, the belt body can rotate relative to the plate, so that the clamping rod will not generate friction on the plate during the upward sliding process, thereby reducing the possibility of plate wear.

[0025] In summary, the present invention has the following beneficial effects:

[0026] 1. When it is necessary to lift the plate, first drive the entire device close to the plate so that the two positioning rods are located on both sides of the plate. Then, the air in the cylinder is sucked out by the vacuum pump, so that the two pistons slide towards each other, thereby driving the two positioning rods to move towards each other until the pistons abut against the limit blocks. At this time, since the distance between the two positioning rods is equal to the width of the plate, the suction cup will automatically align, thereby automatically adjusting the position of the suction cup device and improving the efficiency of the suction cup device aligning with the plate.

[0027] 2. An abutment assembly is provided, and the clamping rod clamps the plate. Since the push rod needs to slide relative to the plate when unloading the plate, an abutment assembly is provided. On the one hand, during positioning and lifting, the belt body can abut against the plate to clamp the plate, and during unloading, the belt body can rotate relative to the plate, so that the clamping rod will not generate friction on the plate during the upward sliding process, thereby reducing the possibility of plate wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of this embodiment;

[0029] Figure 2 Schematic diagram of the internal structure of the cylinder in this embodiment;

[0030] Figure 3 yes Figure 2 A magnified schematic diagram of point A in the middle;

[0031] Figure 4 This is a schematic diagram of the structure of the first closing plate in this embodiment.

[0032] Figure 5 This is a structural diagram of the hooking block hooked behind the blocking block in this embodiment;

[0033] Figure 6 yes Figure 5 A magnified schematic diagram of point B in the middle;

[0034] Figure 7 Schematic diagram of the structure of the piston in this embodiment;

[0035] Figure 8 yes Figure 5 Enlarged schematic diagram of point C in the middle;

[0036] Figure 9 yes Figure 1 Enlarged schematic diagram of point D in the middle.

[0037] In the figure, 1, cylinder; 11, piston; 111, rotating groove; 112, sinking groove; 113, rotating rod; 114, swinging rod; 1141, hooking block; 1142, wedge surface; 115, torsion spring; 116, retaining ring; 12, connecting frame; 13, limit block; 131, push rod; 132, positioning rod; 133, clamping rod; 134, blocking block; 135, fourth spring; 14, abutting assembly; 141, belt body; 142, first rotating roller; 143, second rotating roller; 15, gap; 16, blocking plate; 161, driving Dynamic component; 1611, gear; 1612, rack; 17, first connecting hole; 171, first connecting tube; 1711, second sliding cavity; 1712, third closing plate; 1713, bleed hole; 1714, driving block; 1715, inclined plane; 1716, second spring; 172, second connecting tube; 173, suction cup; 18, control component; 181, first closing plate; 1811, second connecting hole; 1812, first sliding cavity; 1813, first spring; 182, second closing plate; 1821, first through hole. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1-8 This application is described in further detail.

[0039] The present application discloses a lifting suction cup device, referring to Figure 1 and Figure 2 , including a cylinder body 1, and a connecting frame 12 connected to the lifting equipment is provided above the cylinder body 1.

[0040] Reference Figure 2 and Figure 3 Two pistons 11 are provided in the cylinder body 1. The two pistons 11 are distributed along the length direction of the cylinder body 1 and are slidably connected to the cylinder body 1. An air pump is connected to the middle part of the cylinder body 1, which can extract the air from the two pistons 11, thereby forcing the two pistons 11 to slide towards each other. Two limit blocks 13 are provided in the cylinder body 1. The two limit blocks 13 are located between the two pistons 11. The two limit blocks 13 are distributed along the length direction of the cylinder body 1 and are fixedly connected to the inner wall of the cylinder body 1. When the two pistons 11 slide towards each other and abut against the limit blocks 13, the limit blocks 13 limit the pistons 11.

[0041] Reference Figure 2 and Figure 3 A blocking plate 16 is provided on the side of the piston 11 away from the other piston 11, and the blocking plate 16 is connected to the piston 11 in a sliding manner in the vertical direction. A push rod 131 is provided on the side of the blocking plate 16 away from the piston 11. The length direction of the push rod 131 is parallel to the length direction of the cylinder body 1, one end of the push rod 131 is fixedly connected to the blocking plate 16, and the other end of the push rod 131 extends to the outside of the cylinder body 1.

[0042] Reference Figure 2 and Figure 3 A positioning rod 132 is provided at the end of the push rod 131 away from the blocking plate 16. The positioning rod 132 is arranged horizontally. A plurality of clamping rods 133 are fixedly connected to the lower surface of the positioning rod 132. The clamping rods 133 are distributed along the length of the positioning rod 132 and are arranged vertically. When the piston 11 abuts the stop block 13, the distance between the clamping rods 133 on both sides is equal to the width of the plate.

[0043] Reference Figure 2 and Figure 3 When it is necessary to lift the plate, first drive the entire suction cup 173 device close to the plate so that the two clamping rods 133 are located on both sides of the plate, and then use the vacuum pump to suck out the air in the cylinder 1, so that the two pistons 11 slide toward each other, thereby driving the clamping rods 133 on both sides to move toward each other until the pistons 11 abut against the limit blocks 13. At this time, the clamping rods 133 abut against both sides of the plate. Since the distance between the two clamping rods 133 is equal to the width of the plate, the suction cup 173 will be automatically centered, thereby automatically adjusting the position of the suction cup 173 device.

[0044] Reference Figure 2 and Figure 3 A first connecting hole 17 is formed through the lower peripheral wall of the cylinder body 1 at the middle portion. A first connecting pipe 171 is provided on the lower peripheral wall of the cylinder body 1. The length of the first connecting pipe 171 is vertically arranged. The upper end of the first connecting pipe 171 is fixedly connected to the lower peripheral wall of the cylinder body 1. The first connecting pipe 171 is connected to the inner wall of the cylinder body 1 through the first connecting hole 17. A second connecting pipe 172 is connected below the first connecting pipe 171. A plurality of suction cups 173 are provided below the second connecting pipe 172 and are distributed along the length of the second connecting pipe 172. A control assembly 18 for controlling the connection state of the first connecting hole 17 is provided at the position of the first connecting hole 17 of the cylinder body 1.

[0045] Reference Figure 3 and Figure 4The control assembly 18 includes a first closing plate 181, which is located at the first connecting hole 17. The length of the first closing plate 181 is parallel to the length of the cylinder body 1, and the first closing plate 181 covers the first connecting hole 17. A second connecting hole 1811 is vertically penetrated through the upper surface of the first closing plate 181, and the second connecting hole 1811 is coaxially arranged with the first connecting hole 17. A first sliding cavity 1812 is defined on one side of the first closing plate 181 near the piston 11 along the length of the first closing plate 181. The second connecting hole 1811 is connected to the first sliding cavity 1812.

[0046] Reference Figure 3 The control assembly 18 further includes a second closing plate 182. A gap 15 is defined between the piston 11 and the inner bottom wall of the cylinder 1. The thickness of the second closing plate 182 is less than the height of the gap 15, allowing the second closing plate 182 to pass through the gap 15 and abut against the blocking plate 16. The second closing plate 182 is slidably connected to the first sliding cavity 1812 along the length of the first closing plate 181. A first through-hole 1821 is defined through the middle of the second closing plate 182. When the second closing plate 182 is fully inserted into the first sliding cavity 1812, the first through-hole 1821 and the second connecting hole 1811 are coaxially arranged.

[0047] Reference Figure 3 and Figure 4 First closing plate 181 is provided with a first elastic member that forces second closing plate 182 to slide, causing first through-hole 1821 and second communicating hole 1811 to be offset from each other. This first elastic member is a first spring 1813, which is located within first sliding cavity 1812. One end of first spring 1813 is fixedly connected to a side surface of second closing plate 182, and the other end of first spring 1813 is fixedly connected to the inner wall of first sliding cavity 1812. Under normal conditions, second closing plate 182, under the action of first spring 1813, passes through gap 15 and abuts against blocking plate 16, causing first through-hole 1821 and second through-hole to be offset from each other.

[0048] Reference Figure 2 and Figure 3 When the two pistons 11 slide toward each other, the blocking plate 16 pushes the second closing plate 182 to slide toward the first closing plate 181. When the piston 11 moves to abut against the limit block 13, the second closing plate 182 is completely located in the first sliding cavity 1812. At this time, the first through hole 1821 is connected to the second connecting hole 1811, and the second connecting hole 1811 is connected to the first connecting hole 17, so that the vacuum pump can suck out the air in the suction cup 173 to adsorb the plate, thereby lifting the plate.

[0049] Reference Figure 5 、 Figure 6as well as Figure 7 The lower surface of the limit block 13 is fixedly connected to a stop block 134, which is arranged vertically. A rotation groove 111 is formed on the side of the piston 11 along the length direction of the cylinder body 1. The piston 11 is provided with a rotation rod 113, which is rotatably connected to the rotation groove 111. The axis direction of the rotation rod 113 is parallel to the length direction of the cylinder body 1. One end of the rotating rod 113 close to the limit block 13 is fixedly connected to the swing rod 114, and the side of the swing rod 114 close to the blocking block 134 is fixedly connected to a hooking block 1141 for hooking on the blocking block 134. The side of the hooking block 1141 away from the piston 11 is provided with a wedge surface 1142. When the piston 11 moves toward the limit block 13, the wedge surface 1142 abuts against the blocking block 134 and forces the swing rod 114 to rotate so that the hooking block 1141 avoids the blocking block 134, so that the hooking block 1141 can move to the side of the blocking block 134 away from the piston 11.

[0050] Reference Figure 5 、 Figure 6 as well as Figure 7 A recessed groove 112 is formed on the side of the rotating groove 111 near the swinging rod 114. The piston 11 is provided with a third elastic member that forces the rotating rod 113 to rotate, thereby forcing the hooking block 1141 to hook onto the blocking block 134. The third elastic member is a torsion spring 115. A retaining ring 116 is provided around the outer peripheral wall of the rotating rod 113. One end of the torsion spring 115 is fixedly connected to the groove wall of the recessed groove 112, and the other end of the torsion spring 115 is fixedly connected to the retaining ring 116. After the hooking block 1141 avoids the blocking block 134, the piston 11 continues to move. When the hooking block 1141 moves to the side of the blocking block 134 near the other piston 11, the rotating rod 113 rotates under the action of the torsion spring 115, causing the hooking block 1141 to hook onto the blocking block 134.

[0051] Reference Figure 2 and Figure 3A second sliding cavity 1711 is provided inside the first connecting tube 171, and an air leakage hole 1713 connected to the inside of the first connecting tube 171 is provided on one side of the first connecting tube 171. The middle part of the air leakage hole 1713 is connected to the second sliding cavity 1711. The first connecting tube 171 is provided with a third closing plate 1712 which is slidably connected to the second sliding cavity 1711. The air leakage hole 1713 can be closed by sliding the second closing plate 182. The upper wall of the second sliding cavity 1711 is provided with a sliding groove connected to the first sliding cavity 1812. There are two sliding grooves, which are distributed along the width direction of the first closing plate 181 and on both sides of the first spring 1813. The first connecting tube 171 is provided with a connecting piece, which is a driving block 1714. The driving block 1714 is slidingly connected to the sliding groove. The lower end face of the driving block 1714 abuts against the upper surface of the third closing plate 1712. The upper end of the driving block 1714 is provided with an inclined surface 1715. When the second closing plate 182 slides into the first sliding cavity 1812, the second closing plate 182 forces the driving block 1714 to slide downward through the inclined surface 1715 so that the third closing plate 1712 closes the air leakage hole 1713.

[0052] Reference Figure 2 and Figure 3 The first connecting tube 171 is provided with a second elastic member for forcing the third closing plate 1712 to slide to open the air leakage hole 1713. The second elastic member is a second spring 1716. The second spring 1716 is located below the third closing plate 1712. The length direction of the second spring 1716 is vertically arranged. One end of the second spring 1716 is fixedly connected to the inner wall of the second sliding cavity 1711, and the other end of the second spring 1716 is fixedly connected to the lower surface of the third closing plate 1712.

[0053] Reference Figure 2 and Figure 3 After the plate is hoisted, the suction cup 173 device is moved to the top of the workbench by the lifting equipment, and the lifting equipment gradually releases the lifting force on the suction cup 173 device, and the suction cup 173 device moves downward, and the lower surface of the clamping rod 133 abuts against the workbench surface. The suction cup 173 device forces the clamping rod 133 to move upward under the action of its own gravity, thereby driving the blocking plate 16 to slide upward. Then, when the blocking plate 16 slides upward, the second closing plate 182 can pass through the bottom of the blocking plate 16 under the action of the first spring 1813, so that the first through hole 1821 and the second connecting hole 1811 are staggered with each other to close the first connecting hole 17. When the second closing plate 182 slides in the direction away from the first sliding cavity 1812, the third closing plate 1712 slides upward under the action of the second spring 1716 to open the air vent 1713, so that the gas can enter the suction cup 173 to relieve the pressure of the suction cup 173, and then the suction cup 173 releases the plate to place the plate on the workbench.

[0054] Reference Figure 5 、 Figure 6 as well as Figure 8 The blocking plate 16 is provided with a driving assembly 161 for driving the rotating rod 113 to rotate. The driving assembly 161 includes a gear 1611 and a rack 1612. The gear 1611 is coaxially fixedly connected to the end of the rotating rod 113 away from the swinging rod 114. The length direction of the rack 1612 is vertically arranged. The lower end surface of the rack 1612 is fixedly connected to the upper surface of the blocking plate 16, and the rack 1612 is meshed with the gear 1611. After the push rod 131 slides, it can drive the blocking plate 16 to slide. The rack 1612 moves upward with the blocking plate 16. During the upward movement of the rack 1612, it drives the gear 1611 to rotate, thereby rotating the rotating rod 113, causing the hook block 1141 to rotate to a position where it avoids the blocking block 134, thereby unlocking the piston 11.

[0055] Reference Figure 5 and Figure 6 The blocking block 134 is provided with a fourth elastic member that forces the piston 11 to slide away from the other piston 11. The fourth elastic member is a fourth spring 135. The length of the fourth spring 135 is parallel to the length of the cylinder 1. One end of the fourth spring 135 is fixedly connected to the side of the blocking block 134 near the piston 11, and the other end of the fourth spring 135 abuts the piston 11. When the piston 11 is unlocked, the piston 11 can slide away from the other piston 11 under the action of the fourth spring 135, driving the clamping rods 133 on both sides to move away from each other, thereby releasing the plate.

[0056] Reference Figure 2 and Figure 9 The clamping rod 133 is provided with an abutment assembly 14, which includes two first rotating rollers 142 and a belt body 141. A cavity is formed through the side of the clamping rod 133. The two first rotating rollers 142 are located within the cavity. The two first rotating rollers 142 are distributed along the length of the clamping rod 133. The axis of the first rotating rollers 142 is parallel to the length of the positioning rod 132. The ends of the first rotating rollers 142 are rotatably connected to the side walls of the cavity. The belt body 141 is wound between the two first rotating rollers 142. The inner wall of the cavity is provided with a plurality of second rotating rollers 143 to support the belt body 141. The second rotating rollers 143 are located between the two first rotating rollers 142 and distributed along the length of the clamping rod 133. The ends of the second rotating rollers 143 are rotatably connected to the side walls of the cavity. The outer circumferential walls of the second rotating rollers 143 abut the inner wall of the belt body 141. The belt body 141 can rotate relative to the plate, so that the clamping rod 133 does not generate friction on the plate during the upward sliding process, thereby reducing the possibility of wear of the plate.

[0057] The implementation principle of the lifting suction cup 173 device of the embodiment of the present application is as follows: when it is necessary to lift the plate, the entire device is first driven to approach the plate so that the two positioning rods 132 are located on both sides of the plate, and then the air between the two pistons 11 is sucked out by the air pump, so that the two pistons 11 slide in the direction of approaching each other, thereby driving the two clamping rods 133 to move in the direction of approaching each other until the pistons 11 abut against the limit blocks 13. At this time, since the distance between the two positioning rods 132 is equal to the width of the plate, the suction cup 173 is automatically centered, thereby achieving the effect of automatically adjusting the position of the suction cup 173 device, thereby improving the efficiency of the suction cup 173 device in aligning with the plate;

[0058] As piston 11 slides, blocking plate 16 forces second closing plate 182 to slide closer to first closing plate 181. Second closing plate 182, via inclined surface 1715, forces third closing plate 1712 to slide downward, closing air vent 1713. When second closing plate 182 is fully engaged within first sliding cavity 1812, first connecting pipe 171 communicates with the interior of cylinder body 1. The vacuum pump draws air from suction cup 173 through first connecting pipe 171, allowing suction cup 173 to adhere to the sheet material, allowing the sheet material to be hoisted.

[0059] The plate is then lifted to the top of the workbench by a lifting device, and the lifting device gradually releases the lifting force on the suction cup 173 device. The suction cup 173 device moves downward under the action of its own neutral force, and the clamping rod 133 abuts against the workbench surface. Due to the weight of the suction cup 173 device, the main body of the suction cup 173 device moves downward, causing the clamping rod 133 to slide upward relative to the suction cup 173 device, thereby driving the blocking plate 16 to slide upward. After the blocking plate 16 slides upward, the second closing plate 182 can pass through the bottom of the blocking plate 16 under the action of the first spring 1813, so that the first through hole 1821 and the second connecting hole 1811 are staggered with each other to close the first connecting hole 17. When the second closing plate 182182 slides in the direction away from the first sliding cavity 1812, the third closing plate 1712 slides upward under the action of the second spring 1716 to open the air release hole 1713, allowing gas to enter the suction cup 173 to relieve the pressure of the suction cup 173. Then, the suction cup 173 releases the plate, so that the plate is placed on the workbench.

[0060] During the upward sliding of the blocking plate 16, the gear 1611 is driven to rotate by the rack 1612, thereby driving the rotating rod 113 to rotate, so that the limit block 13 is disengaged from the limit of the blocking block 134, and the piston 11 slides in the direction away from the other piston 11 under the action of the fourth spring 135.

[0061] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A lifting suction cup device, characterized in that: The invention comprises a cylinder body (1), wherein the middle portion of the cylinder body (1) is connected to an air pump, and two pistons (11) are arranged in the cylinder body (1), and the two pistons (11) are distributed along the length direction of the cylinder body (1), and a push rod (131) is arranged on the side of the piston (11) away from the other piston (11), and a positioning rod (132) is extended downward from the push rod (131), and a plurality of suction cups (173) are arranged on the lower surface of the middle portion of the cylinder body (1); a first connecting pipe (171) is arranged in the middle portion of the suction cup (173), and a first connecting hole (17) is arranged below the cylinder body (1), and the first connecting pipe (171) is connected to the first connecting hole (17). The cylinder body (1) is provided with a control component (18) for controlling the connection state of the first connecting hole (17) at the first connecting hole (17); the control component (18) includes a first closing plate (181) and a second closing plate (182), the first closing plate (181) has a first sliding cavity (1812), the second closing plate (182) is slidably connected to the first sliding cavity (1812) along the length direction of the cylinder body (1), the upper surface of the first closing plate (181) is provided with a second connecting hole (1811) connected to the first connecting hole (17), the second connecting hole (1811) is connected to the first sliding cavity (1812), and the The second closing plate (182) is provided with a first through hole (1821), and the side surface of the second closing plate (182) abuts against the piston (11). When the second closing plate (182) is fully inserted into the first sliding cavity (1812), the first through hole (1821) and the second connecting hole (1811) are coaxially arranged. The first closing plate (181) is provided with a first elastic member for forcing the second closing plate (182) to slide in a direction away from the first closing plate (181). The piston (11) and the lower inner wall of the cylinder (1) have a gap (15) for the second closing plate (182) to pass through. The push rod (131) is close to the piston ( 11) is provided with a blocking plate (16) at one end, the blocking plate (16) is connected to the piston (11) in a sliding manner in the vertical direction, and under normal conditions, the blocking plate (16) blocks the second closing plate (182), the first connecting tube (171) is provided with an air leakage hole (1713), the first connecting tube (171) is provided with a third closing plate (1712) for closing the air leakage hole (1713), a connecting piece is provided between the second closing plate (182) and the third closing plate (1712), and the second closing plate (182) can drive the third closing plate (1712) to slide through the connecting piece to close the air leakage hole (1713);A limit block (13) for limiting the position of the piston (11) is provided in the cylinder body (1), and the limit block (13) is located between the two pistons (11). When the piston (11) abuts against the limit block (13), the gap (15) between the two positioning rods (132) is equal to the width of the iron plate to be hoisted. The piston (11) is rotatably connected to a swing rod (114). The limit block (13) extends downwardly to form a blocking block (134). A hooking block (1141) for hooking onto the blocking block (134) is provided on one side of the swing rod (114) close to the limit block (13).

2. A lifting suction cup device according to claim 1, characterized in that: The first connecting pipe (171) is provided with a second elastic member for forcing the third closing plate (1712) to open the air leakage hole (1713).

3. The lifting suction cup device according to claim 1, characterized in that: A wedge-shaped surface (1142) is provided on one side of the hook block (1141) close to the blocking block (134). When the piston (11) moves toward the limit block (13), the wedge-shaped surface (1142) forces the swing rod (114) to rotate so that the hook block (1141) avoids the blocking block (134). The piston (11) is provided with a third elastic member forcing the swing rod (114) to rotate in a direction close to the blocking block (134).

4. A lifting suction cup device according to claim 3, characterized in that: The piston (11) is provided with a driving assembly (161), and the driving assembly (161) includes a gear (1611) and a rack (1612). The piston (11) is driven by a rotating rod (113). The gear (1611) is coaxially arranged on a side of the rotating rod (113) close to the blocking plate (16). The lower end of the swing rod (114) is fixedly connected to the other end of the rotating rod (113). The rack (1612) is provided on the upper surface of the blocking plate (16). The gear (1611) is engaged with the rack (1612). The blocking block (134) is provided with a fourth elastic member for forcing the piston (11) to slide in a direction away from the other piston (11).

5. The lifting suction cup device according to claim 1, characterized in that: The positioning rod (132) is provided with a plurality of clamping rods (133), and the clamping rod (133) is provided with an abutting assembly (14) for abutting against the side of the plate, and the abutting assembly (14) includes two first rotating rollers (142) and a belt body (141), and the axial directions of the two first rotating rollers (142) are arranged horizontally, and the two ends of the first rotating roller (142) are rotatably connected to the clamping rod (133), and the belt body (141) is wound between the two first rotating rollers (142), and the clamping rod (133) is provided with a second rotating roller (143) for supporting the belt body (141).

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