Feeding and discharging device for plate production and using method of feeding and discharging device

Abstract

The invention relates to the technical field of plate production, and provides a feeding and discharging device for plate production and a using method thereof.The feeding and discharging device comprises a top frame, a feeding frame and a discharging frame, the feeding frame and the discharging frame can horizontally slide on the top frame, and the bottom of the feeding frame and the bottom of the discharging frame are each provided with a picking mechanism; a driving mechanism used for driving the feeding frame and the discharging frame to slide relatively is arranged on the outer side of the top frame. Two guide rails are fixed in the top frame, wherein the guide rails force plates picked up at the bottom of the discharging frame to be lifted upwards so as to cross the bottom of the feeding frame to pick up the plates when the discharging frame slides to the feeding frame. According to the automatic feeding and discharging device, the driving mechanism drives the discharging frame to repeat the procedures of sucking and discharging of the plates, the discharging frame lifts the picked plates upwards to cross the plates picked by the feeding frame under sliding limiting of the limiting groove of the guide rail in the discharging process, and then alternate feeding and discharging are achieved; compared with the prior art, the plate machining continuity can be achieved through the alternate feeding and discharging mode, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plate production, and in particular to a loading and unloading device for plate production and a method of using the device. Background Art

[0002] During the production of plates, precise processing is required by machine tools. However, the loading and unloading automation of plate processing is low, which seriously affects the processing efficiency of plates. For plates with large format and heavy weight, loading and unloading is quite difficult, and other engineering machinery is usually required to assist loading and unloading, which is prone to safety accidents.

[0003] After searching, the existing patent technology with announcement number CN111302049B discloses a plate loading and unloading system and its control method, which includes a controller, a frame device, a loading device and a unloading device, and the unloading device and the loading device are both arranged on the frame device. The frame device is provided with a first and a second overlapping track mechanism, and the plane where the first track mechanism is located and the plane where the second track mechanism is located are parallel to each other. The unloading device is arranged on the first track mechanism, and the loading device is arranged on the second track mechanism. The plate loading and unloading system is automatic loading and unloading of plate processing machinery, which reduces the danger of manual operation and improves the working efficiency of plate processing machinery. The loading device can be stacked on top of the unloading device, and the loading and unloading device occupies a small area, has flexible workstations, and is easy to operate.

[0004] However, the existing patented technology still has the following problems: the above-mentioned loading and unloading system requires two independent transmission systems to realize automatic loading and unloading of the plate processing machinery, which has high control requirements for the continuous production of plate processing, thereby increasing the equipment cost. In addition, it is difficult to ensure the constant force during suction by only using conventional suction cups, and it is easy to cause loose suction due to shaking during the process of sucking up and down materials. Summary of the invention

[0005] The present invention provides a loading and unloading device for plate production and a use method thereof, which solves the problems of insufficient production continuity and insufficient suction stability of a suction cup in the prior art.

[0006] The technical solution of the present invention is as follows: a loading and unloading device for plate production, comprising a top frame, and a loading frame and a lower material frame that can slide horizontally on the top frame, the bottom of the loading frame and the lower material frame are both provided with a picking mechanism, the outer side of the top frame is provided with a driving mechanism for driving the loading frame and the lower material frame to slide relative to each other, two guide rails are fixed in the top frame for forcing the plate picked up by the bottom of the lower material frame to be lifted upward when the lower material frame slides to the upper material frame so as to cross the bottom of the loading frame to pick up the plate, the picking mechanism comprises a fixed platform, a movable platform and a movable plate horizontally arranged from top to bottom, a cylinder for driving the movable platform to perform lifting and lowering movements is fixed to the top surface of the fixed platform, a suction nozzle assembly for sucking the plate is embedded on the movable plate, a supporting assembly is provided between the movable platform and the cylinder, and a transmission assembly that can drive the supporting assembly to support the plate when the suction nozzle assembly lifts the plate is provided.

[0007] Preferably, the driving mechanism includes a motor and a reduction gearbox matched with the motor, the two ends of the top frame are rotatably connected to a shaft rod, the two ends of the two shaft rods are fixed with synchronous wheels, the synchronous wheels on the two shaft rods are connected through a synchronous belt transmission, the output end of the reduction gearbox is fixedly connected to one of the shaft rods, the loading rack is fixed to the upper half of the synchronous belt, and the unloading rack is fixed to the lower half of the synchronous belt.

[0008] Preferably, a limiting groove is provided on the guide rail, and the two ends of the limiting groove are straight and the middle is convex upward.

[0009] Preferably, a fixing rod is slidably connected in the unloading rack, a top side of the fixing rod is fixed with a limiting rod limitedly positioned in a limiting groove, and a bottom end of the fixing rod is fixed on a fixed platform.

[0010] Preferably, the movable platform is fixed to the output end of the cylinder, and a guide rod vertically slidably connected to the fixed platform is fixed to the top surface of the movable platform.

[0011] Preferably, a through hole is opened at the center of the movable plate, a fixing ring is fixed in the through hole, and pressure rods are fixed on both sides of the top surface of the fixing ring.

[0012] Preferably, the transmission assembly includes a rotating shaft, which is rotatably connected to the movable platform, and a torsion spring is clamped at the rotating connection. A turntable is fixed to the bottom of the rotating shaft, and a steering column capable of passing through a fixing ring is fixed to the bottom of the turntable. Two spiral ears in contact with the pressure rod are fixed on the column surface of the steering column, and the two spiral ears are rotationally symmetrical about the axis of the steering column.

[0013] Preferably, the supporting assembly includes a first curved arm and a second curved arm, the first curved arm and the second curved arm are hinged through a first positioning axis, the first positioning axis is rotatably connected to the movable platform, a bracket is fixed to the bottom of the first curved arm and the second curved arm away from the hinge, the first curved arm and the second curved arm are hinged to the first thrust rod at one end away from the hinge, the bottom of the movable platform is rotatably connected to the second positioning axis, a swing arm is hinged on the outer side of the second positioning axis, the swing arm is Y-shaped, two ends of the swing arm are respectively hinged to the first thrust rods of the first curved arm and the second curved arm, the remaining end of the swing arm is hinged to the second thrust rod, and the end of the second thrust rod away from the swing arm is hinged to the turntable.

[0014] Preferably, the suction nozzle assembly includes an electric telescopic rod, which is fixed to the top surface of the movable platform, and an air cylinder is fixedly passed through the movable plate, the output end of the electric telescopic rod passes through the movable platform and is fixed with a first piston slidably arranged in the air cylinder, a second piston is slidably arranged on the inner side of the bottom of the air cylinder, a stop ring for limiting the sliding position of the second piston is fixed in the air cylinder, a suction cup is fixed to the bottom of the air cylinder, a folding hose is sleeved on the outer side of the air cylinder, two ends of the folding hose are respectively sealed and fixed to the movable platform and the movable plate, an air guide hole is opened at the position of the air cylinder located in the folding hose, and an electromagnetic lock core for locking the second piston upward is fixed in the air cylinder.

[0015] Based on the above-mentioned loading and unloading device for plate production, the present invention also proposes a method for using the loading and unloading device, comprising the following steps: Step 1: Plate suction. The plate to be processed is placed under the loading rack. The movable platform and movable plate are driven downward to the plate by the cylinder. The plate is sucked by the negative pressure of the suction nozzle assembly. The movable platform and movable plate are driven upward by the cylinder to lift the plate. Step 2: Supporting the plate. The suction nozzle assembly increases the suction force. After the distance between the movable platform and the movable plate is reduced, the plate is placed at the supporting height position of the supporting assembly. During this process, the supporting assembly begins to shrink toward the plate under the drive of the transmission assembly until the plate is supported. Step 3: Loading of the plate. The driving mechanism drives the loading rack to move in the direction of the lower rack until it reaches the predetermined processing position of the machine tool. The cylinder drives the movable platform and the movable plate to move downward. The suction nozzle assembly releases the plate. At the same time, the supporting assembly expands outward under the drive of the transmission assembly until the plate is smoothly put down and the loading is completed. Step 4: Unloading of the sheet material. The driving mechanism drives the loading rack and the unloading rack to reciprocate one round trip to the original position. After the processing is completed, the picking mechanism at the bottom of the unloading rack repeats the sheet material suction process in step 1, and then the driving mechanism reverses the work to drive the unloading rack to move to the position of the upper rack. The cylinder drives the movable platform and the movable plate to move downward, and the suction nozzle assembly releases the sheet material. At the same time, the supporting assembly expands outward under the drive of the transmission assembly until the sheet material is smoothly put down to complete the unloading. Step five, during step four, the unloading rack is driven by the driving mechanism to repeat the processes of step one, step two and step three, and during the unloading process, the unloading rack cooperates with the guide rail to lift the picked-up plate upward to pass over the plate picked up by the loading rack, thereby realizing alternating loading and unloading.

[0016] The beneficial effects of the present invention are: In the present invention, the unloading rack is driven by a driving mechanism to repeat the process of absorbing and unloading the plate, and the unloading rack lifts the picked-up plate upward under the sliding limit of the limit groove of the guide rail during the unloading process to pass over the plate picked up by the loading rack, thereby realizing alternating loading and unloading. Compared with the prior art, the sampling alternating loading and unloading method of the present invention can realize the continuity of plate processing and improve production efficiency. The suction nozzle assembly of the present invention increases the suction force. After the distance between the movable platform and the movable plate is reduced, the plate is placed at the supporting height position of the supporting assembly. During this process, the supporting assembly starts to shrink towards the plate under the drive of the transmission assembly until the plate is supported. The upper material rack is driven by the driving mechanism to move in the direction of the lower material rack until it reaches the predetermined processing position of the machine tool. The cylinder drives the movable platform and the movable plate to move downward, and the plate is released by the suction nozzle assembly. At the same time, the supporting assembly expands outward under the drive of the transmission assembly until the plate is smoothly put down. Compared with the prior art, the present invention can ensure the stability of loading and unloading of plates by sampling stable air pressure suction and auxiliary supporting. During the lifting process of the present invention, the electric telescopic rod continues to work to increase the suction force. During this process, the second piston is blocked by the stop ring to maintain a fixed position, and the electromagnetic lock core works to lock the second piston, so that the suction force in the suction cup can be kept constant, thereby achieving stable suction of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of a loading and unloading device for plate production proposed by the present invention; Figure 2 This is a schematic structural diagram of a loading and unloading device for plate production proposed by the present invention from another perspective; Figure 3This is a schematic diagram of the structure of the top frame, the loading frame and the unloading frame proposed in the present invention; Figure 4 This is a schematic diagram of the structure of the fixed platform, movable platform and movable plate proposed by the present invention; Figure 5 This is a schematic diagram of the structure of the supporting assembly proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the movable plate and the transmission assembly proposed by the present invention; Figure 7 This is a schematic diagram of the transmission assembly structure proposed by the present invention; Figure 8 A schematic diagram of a half-section structure of a nozzle assembly proposed by the present invention; In the figure: 1, top frame; 2, loading rack; 3, unloading rack; 31, fixed rod; 32, limit rod; 4, picking mechanism; 41, fixed platform; 42, movable platform; 421, guide rod; 43, cylinder; 44, movable plate; 441, through hole; 442, fixed ring; 443, pressure rod; 45, nozzle assembly; 451, electric telescopic rod; 452, air cylinder; 453, first piston; 454, second piston; 455, stop ring; 456, suction cup; 457, folding hose; 458, air guide hole; 45 9. Electromagnetic lock core; 46. Supporting assembly; 461. First curved arm; 462. Second curved arm; 463. First positioning shaft; 464. Support seat; 465. First thrust rod; 466. Swing arm; 467. Second positioning shaft; 468. Second thrust rod; 47. Transmission assembly; 471. Rotating shaft; 472. Turntable; 473. Steering column; 474. Spiral ear; 5. Driving mechanism; 51. Motor; 52. Reducer; 53. Shaft; 54. Synchronous wheel; 55. Synchronous belt; 6. Guide rail; 61. Limiting groove. DETAILED DESCRIPTION

[0019] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1 and Figure 2The present invention provides a technical solution: a loading and unloading device for plate production, comprising a top frame 1, and a loading frame 2 and a unloading frame 3 that can slide horizontally on the top frame 1, a picking mechanism 4 is arranged at the bottom of the loading frame 2 and the unloading frame 3, a driving mechanism 5 for driving the loading frame 2 and the unloading frame 3 to slide relative to each other is arranged on the outer side of the top frame 1, two guide rails 6 are fixed in the top frame 1, which force the plate picked up by the bottom of the unloading frame 3 to be lifted upward when the unloading frame 3 slides toward the upper material frame 2 so as to pass over the bottom of the loading frame 2 to pick up the plate, the picking mechanism 4 comprises a fixed platform 41, a movable platform 42 and a movable plate 44 arranged horizontally from top to bottom, a cylinder 43 for driving the movable platform 42 to perform lifting and lowering movements is fixed on the top surface of the fixed platform 41, a suction nozzle assembly 45 for sucking the plate is embedded on the movable plate 44, a supporting assembly 46 and a transmission assembly 47 that can drive the supporting assembly 46 to support the plate when the suction nozzle assembly 45 lifts the plate are arranged between the movable platform 42 and the cylinder 43.

[0021] See also Figure 3 The driving mechanism 5 includes a motor 51 and a reduction box 52 matched with the motor 51. The two ends of the top frame 1 are rotatably connected with shafts 53. Both ends of the two shafts 53 are fixed with synchronous wheels 54. The synchronous wheels 54 on the two shafts 53 are connected through a synchronous belt 55. The output end of the reduction box 52 is fixedly connected to one of the shafts 53. The loading rack 2 is fixed to the upper half of the synchronous belt 55, and the unloading rack 3 is fixed to the lower half of the synchronous belt 55. The motor 51 and the reduction box 52 drive the synchronous wheel 54. The transmission action of the synchronous wheel 54 and the synchronous belt 55 drives the two shafts 53 to rotate synchronously. Since the loading rack 2 and the lower rack 3 are respectively fixed to the upper and lower parts of the synchronous belt 55, the loading rack 2 and the unloading rack 3 can be driven to move relative to each other.

[0022] See also Figure 2 and Figure 3 A limiting groove 61 is provided on the guide rail 6, the two ends of the limiting groove 61 are straight and the middle part is convex upward, a fixing rod 31 is slidably connected in the unloading rack 3, and a limiting rod 32 limitedly positioned in the limiting groove 61 is fixed on one side of the top of the fixing rod 31, and the bottom end of the fixing rod 31 is fixed on the fixed platform 41, and the unloading rack 3 is driven by the driving mechanism 5 to repeat the process of sucking and unloading the plate, and the unloading rack 3 lifts the picked-up plate upward to pass over the plate picked up by the loading rack 2 under the sliding limit of the limiting groove 61 of the guide rail 6 during the unloading process, thereby realizing alternating loading and unloading.

[0023] See also Figure 4 and Figure 5 The movable platform 42 is fixed to the output end of the cylinder 43. A guide rod 421 vertically slidably connected to the fixed platform 41 is fixed to the top surface of the movable platform 42 to guide the movement of the movable platform 42 and increase stability.

[0024] See also Figure 6 and Figure 7 The movable plate 44 has a through hole 441 at its center, a fixing ring 442 is fixed in the through hole 441, and pressure rods 443 are fixed on both sides of the top surface of the fixing ring 442. The transmission assembly 47 includes a rotating shaft 471, which is rotatably connected to the movable platform 42, and a torsion spring (not shown in the figure) is clamped at the rotating connection. A rotating disk 472 is fixed at the bottom of the rotating shaft 471, and a steering column 473 that can pass through the fixing ring 442 is fixed at the bottom of the rotating disk 472. The steering column 47 3, two spiral ears 474 in contact with the pressure rod 443 are fixed on the cylindrical surface of the steering column 473, and the two spiral ears 474 are rotationally symmetrical about the axis of the steering column 473. The reduced distance between the movable platform 42 and the movable plate 44 can make the plate be at the supporting height position of the supporting assembly 46. In this process, the through holes 441 on both sides of the fixing ring 442 can squeeze the spiral ears 474, so that the steering column 473 drives the turntable 472 to rotate around the rotating shaft 471.

[0025] See also Figure 5 The supporting assembly 46 includes a first curved arm 461 and a second curved arm 462, the first curved arm 461 and the second curved arm 462 are hinged by a first positioning shaft 463, the first positioning shaft 463 is rotatably connected to the movable platform 42, the bottom of the first curved arm 461 and the second curved arm 462 away from the hinge are fixed with a bracket 464, the first curved arm 461 and the second curved arm 462 away from the hinge are hinged with a first thrust rod 465, the bottom of the movable platform 42 is rotatably connected with a second positioning shaft 467, the outer side of the second positioning shaft 467 is hinged with a swing arm 466, the swing arm 466 is Y-shaped, and the two ends of the swing arm 466 are respectively It is hinged with the first thrust rod 465 of the first curved arm 461 and the second curved arm 462, and the remaining end of the swing arm 466 is hinged with the second thrust rod 468. The end of the second thrust rod 468 away from the swing arm 466 is hinged on the turntable 472. In the process of the steering column 473 driving the turntable 472 to rotate around the rotating shaft 471, the swing arm 466 is pushed by the action of the second thrust rod 468, and the two first thrust rods 465 are pulled by the swing arm 466 respectively, thereby driving the first curved arm 461 and the second curved arm 462 to shrink toward the plate synchronously until the support base 464 on the first curved arm 461 and the second curved arm 462 supports the plate.

[0026] See also Figure 5 and Figure 8The nozzle assembly 45 includes an electric telescopic rod 451, which is fixed to the top surface of the movable platform 42, and a gas cylinder 452 is fixedly passed through the movable plate 44. The output end of the electric telescopic rod 451 passes through the movable platform 42 and is fixed with a first piston 453 slidably arranged in the gas cylinder 452, and a second piston 454 is slidably arranged on the inner side of the bottom of the gas cylinder 452. A stop ring 455 for limiting the sliding position of the second piston 454 is fixed in the gas cylinder 452, and a suction cup 456 is fixed at the bottom of the gas cylinder 452. A folding hose 457 is sleeved on the outer side of the gas cylinder 452, and the two ends of the folding hose 457 are respectively sealed and fixed to the movable platform 42 and the movable plate 44. An air guide hole 458 is opened at the position of the gas cylinder 452 located in the folding hose 457, and an electromagnetic lock core 459 for locking the second piston 454 upward is fixed in the gas cylinder 452. In the initial state, the electromagnetic valve on the second piston 454 contracts, and the gas cylinder 452 is opened. The electric telescopic rod 451 drives the first piston 453 to move upward, thereby forming a negative pressure between the first piston 453 and the second piston 454, and the second piston 454 moves upward under the action of the negative pressure, and then the plate is sucked by the negative pressure environment in the suction cup 456, and the movable platform 42 and the movable plate 44 are driven by the cylinder 43 to lift the plate upward. During the lifting process, the electric telescopic rod 451 continues to work to increase the suction force. During this process, the second piston 454 is blocked by the stop ring 455 and remains in a fixed position, and the electromagnetic lock core 459 works to lock the second piston 454, so that the suction force in the suction cup 456 can be kept constant, and the continued upward movement of the first piston 453 will exceed the height position of the air guide hole 458, and then as the height of the first piston 453 increases, the air in the folding hose 457 can be sucked into the air cylinder 452, so that the folding hose 457 gradually shrinks.

[0027] Based on the above embodiments, the present invention provides a method for using a loading and unloading device, comprising the following steps: Step 1: Suction of the plate. The plate to be processed is placed under the loading rack 2. The cylinder 43 drives the movable platform 42 and the movable plate 44 downward to approach the plate. The plate is sucked by the negative pressure of the suction nozzle assembly 45. The plate is lifted upward by the cylinder 43. Step 2: Supporting the plate. The suction nozzle assembly 45 increases the suction force. After the distance between the movable platform 42 and the movable plate 44 is reduced, the plate is placed at the supporting height position of the supporting assembly 46. During this process, the supporting assembly 46 starts to shrink towards the plate under the drive of the transmission assembly 47 until the plate is supported. Step 3: Loading of the plate. The driving mechanism 5 drives the loading rack 2 to move in the direction of the lower rack 3 until it reaches the predetermined processing position of the machine tool. The cylinder 43 drives the movable platform 42 and the movable plate 44 to move downward. The suction nozzle assembly 45 releases the plate. At the same time, the supporting assembly 46 expands outward under the drive of the transmission assembly 47 until the plate is smoothly put down, completing the loading. Step 4: Unloading of the sheet material. The driving mechanism 5 drives the loading rack 2 and the unloading rack 3 to reciprocate one round trip to the original position. After the processing is completed, the picking mechanism 4 at the bottom of the unloading rack 3 repeats the sheet material suction process in step 1, and then the driving mechanism 5 reverses the work to drive the unloading rack 3 to move to the position of the upper rack 2. The cylinder 43 drives the movable platform 42 and the movable plate 44 to move downward, and the suction nozzle assembly 45 releases the sheet material. At the same time, the supporting assembly 46 expands outward under the drive of the transmission assembly 47 until the sheet material is smoothly put down, and unloading is completed; In step five, during step four, the driving mechanism 5 drives the unloading rack 3 to repeat the processes of step one, step two and step three, and during the unloading process, the unloading rack 3 cooperates with the guide rail 6 to lift the picked-up plate upward to pass over the plate picked up by the loading rack 2, thereby realizing alternating loading and unloading.

[0028] The working principle and use process of the present invention are as follows: the plate to be processed is placed under the loading rack 2, and the movable platform 42 and the movable plate 44 are driven downward to approach the plate by the cylinder 43 until the suction cup 456 at the end of the cylinder 452 is pressed against the surface of the plate. In the initial state, the solenoid valve on the second piston 454 contracts, and the electric telescopic rod 451 drives the first piston 453 to be lifted upward, thereby forming a negative pressure between the first piston 453 and the second piston 454, and the second piston 454 moves upward under the action of the negative pressure, and then the plate is sucked by the negative pressure environment in the suction cup 456, and the movable platform 42 and the movable plate 44 are driven upward by the cylinder 43 to lift the plate; During the lifting process, the electric telescopic rod 451 continues to work to increase the suction force, and in this process, the second piston 454 is blocked by the stop ring 455 to maintain a fixed position, and the electromagnetic lock core 459 works to lock the second piston 454, so that the suction force in the suction cup 456 can be kept constant, and the first piston 453 continues to move upward to exceed the height position of the air guide hole 458, and then as the height of the first piston 453 increases, the air in the folding hose 457 can be sucked into the air cylinder 452, so that the folding hose 457 gradually shrinks, that is, the movable platform 42 and the movable platform 42 are connected. The spacing between the movable plates 44 is also reduced, so that the plate can be placed at the supporting height position of the supporting assembly 46. In this process, the through holes 441 on both sides of the fixing ring 442 can squeeze the spiral ear pieces 474, so that the steering column 473 drives the turntable 472 to rotate around the rotating shaft 471, and then the swing arm 466 is pushed by the second thrust rod 468, and the two first thrust rods 465 are pulled by the swing arm 466, thereby driving the first curved arm 461 and the second curved arm 462 to shrink toward the plate synchronously, until the brackets 464 on the first curved arm 461 and the second curved arm 462 hold the plate; Then the motor 51 and the reduction box 52 drive the synchronous wheel 54, and the transmission action of the synchronous wheel 54 and the synchronous belt 55 drives the two shafts 53 to rotate synchronously. Since the loading rack 2 and the lower loading rack 3 are respectively fixed to the upper and lower parts of the synchronous belt 55, the loading rack 2 and the lower loading rack 3 can be driven to move relative to each other until the plate picked up from the lower loading rack 2 reaches the predetermined processing position of the machine tool, and the cylinder 43 drives the movable platform 42 and the movable plate 44 to move downward, and the electric telescopic rod 451 drives the first piston 453 to move downward, so that the air in the air cylinder 452 is replenished into the folding hose 457, so that the folding hose 457 gradually expands, that is, the distance between the movable platform 42 and the movable plate 44 is also reduced, and at the same time, the supporting component 46 expands outward under the drive of the transmission component 47 until it is completely separated from the plate, and the electromagnetic lock core 459 begins to shrink, thereby destroying the negative pressure environment in the suction cup 456, and the plate can be put down to complete the loading; The driving mechanism 5 drives the upper material rack 2 and the lower material rack 3 to reciprocate one round trip to the original position. After the processing is completed, the picking mechanism 4 at the bottom of the lower material rack 3 repeats the above-mentioned plate suction process, and then the driving mechanism 5 reverses the work to drive the lower material rack 3 to move to the position of the upper material rack 2. The cylinder 43 drives the movable platform 42 and the movable plate 44 to move downward, and the suction nozzle assembly 45 releases the plate. At the same time, the supporting assembly 46 expands outward under the drive of the transmission assembly 47 until the plate is smoothly put down, and the unloading is completed; In the above-mentioned unloading process, the unloading rack 3 is driven by the driving mechanism 5 to repeat the process of sucking and unloading the plates, and the unloading rack 3 lifts the picked-up plates upwards to pass over the plates picked up by the loading rack 2 under the sliding limit of the limit groove 61 of the guide rail 6 during the unloading process, thereby realizing alternating loading and unloading, and can ensure stable suction of the plates during loading and unloading, preventing the plates from falling off due to loose suction.

[0029] The above are only preferred embodiments of the present invention and are 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 protection scope of the present invention.

Claims

1. A loading and unloading device for plate production, comprising a top frame (1), and a loading frame (2) and a unloading frame (3) capable of horizontally sliding on the top frame (1), characterized in that: The bottom of the upper material rack (2) and the lower material rack (3) are both provided with a picking mechanism (4); the outer side of the upper frame (1) is provided with a driving mechanism (5) for driving the upper material rack (2) and the lower material rack (3) to slide relative to each other; two guide rails (6) are fixed inside the upper frame (1) for forcing the plate picked up by the bottom of the lower material rack (3) to be lifted upwards to pass over the plate picked up by the bottom of the upper material rack (2) when the lower material rack (3) slides toward the upper material rack (2); the picking mechanism (4) comprises a fixed plane horizontally arranged from top to bottom. A fixed platform (41), a movable platform (42) and a movable plate (44); a cylinder (43) for driving the movable platform (42) to perform lifting movements is fixed on the top surface of the fixed platform (41); a suction nozzle assembly (45) for sucking a plate is embedded on the movable plate (44); a supporting assembly (46) and a transmission assembly (47) capable of driving the supporting assembly (46) to support the plate when the suction nozzle assembly (45) lifts the plate are arranged between the movable platform (42) and the cylinder (43).

2. A loading and unloading device for plate production according to claim 1, characterized in that: The driving mechanism (5) comprises a motor (51) and a reduction box (52) matched with the motor (51); two ends of the top frame (1) are rotatably connected to shafts (53); two ends of the two shafts (53) are fixed with synchronous wheels (54); the synchronous wheels (54) on the two shafts (53) are connected by a synchronous belt (55); the output end of the reduction box (52) is fixedly connected to one of the shafts (53); the loading frame (2) is fixed to the upper half of the synchronous belt (55); and the unloading frame (3) is fixed to the lower half of the synchronous belt (55).

3. A loading and unloading device for plate production according to claim 1, characterized in that: The guide rail (6) is provided with a limiting groove (61), wherein both ends of the limiting groove (61) are straight and the middle thereof is convex upwards.

4. A loading and unloading device for plate production according to claim 3, characterized in that: A fixing rod (31) is slidably connected inside the unloading rack (3), a limiting rod (32) limitedly positioned in a limiting groove (61) is fixed on one side of the top of the fixing rod (31), and the bottom end of the fixing rod (31) is fixed on a fixing platform (41).

5. The loading and unloading device for plate production according to claim 1, characterized in that: The movable platform (42) is fixed to the output end of the cylinder (43), and a guide rod (421) vertically slidably connected to the fixed platform (41) is fixed to the top surface of the movable platform (42).

6. A loading and unloading device for plate production according to claim 1, characterized in that: A through hole (441) is provided at the center of the movable plate (44), a fixing ring (442) is fixed in the through hole (441), and pressure rods (443) are fixed on both sides of the top surface of the fixing ring (442).

7. A loading and unloading device for plate production according to claim 6, characterized in that: The transmission assembly (47) comprises a rotating shaft (471), the rotating shaft (471) being rotationally connected to the movable platform (42), and a torsion spring being clamped at the rotational connection; a rotating disk (472) being fixed at the bottom of the rotating shaft (471); a steering column (473) capable of passing through a fixing ring (442) being fixed at the bottom of the rotating disk (472); two spiral ears (474) in contact with the pressure rod (443) being fixed on the column surface of the steering column (473); the two spiral ears (474) being rotationally symmetrical about the axis of the steering column (473).

8. A loading and unloading device for plate production according to claim 7, characterized in that: The supporting assembly (46) comprises a first curved arm (461) and a second curved arm (462), wherein the first curved arm (461) and the second curved arm (462) are hingedly connected via a first positioning shaft (463), wherein the first positioning shaft (463) is rotatably connected to the movable platform (42), wherein a supporting seat (464) is fixed to the bottom of the end of the first curved arm (461) and the second curved arm (462) away from the hinge, and a first thrust rod (465) is hingedly connected to the end of the first curved arm (461) and the second curved arm (462) away from the hinge. The bottom of the movable platform (42) is rotatably connected to a second positioning shaft (467), and a swing arm (466) is hinged on the outer side of the second positioning shaft (467). The swing arm (466) is Y-shaped, and two ends of the swing arm (466) are respectively hinged to the first thrust rods (465) of the first curved arm (461) and the second curved arm (462), and the remaining end of the swing arm (466) is hinged to a second thrust rod (468), and the end of the second thrust rod (468) away from the swing arm (466) is hinged on the turntable (472).

9. A loading and unloading device for plate production according to claim 7, characterized in that: The suction nozzle assembly (45) comprises an electric telescopic rod (451), the electric telescopic rod (451) being fixed to the top surface of the movable platform (42), an air cylinder (452) being fixedly passed through the movable plate (44), an output end of the electric telescopic rod (451) passing through the movable platform (42) and being fixed with a first piston (453) slidably arranged in the air cylinder (452), a second piston (454) being slidably arranged on the inner side of the bottom of the air cylinder (452), and a pair of second pistons (454) being fixed in the air cylinder (452). ) a stop ring (455) for sliding limit, a suction cup (456) is fixed to the bottom of the air cylinder (452), a folding hose (457) is sleeved on the outside of the air cylinder (452), two ends of the folding hose (457) are respectively sealed and fixed to the movable platform (42) and the movable plate (44), an air guide hole (458) is opened at the position of the air cylinder (452) located in the folding hose (457), and an electromagnetic lock core (459) for locking the second piston (454) upward is fixed in the air cylinder (452).

10. A method for using a loading and unloading device, according to the loading and unloading device for plate production according to claim 1, characterized in that: The following steps are involved: Step 1: sucking the plate. The plate to be processed is placed under the loading rack (2). The movable platform (42) and the movable plate (44) are driven downward to approach the plate by the cylinder (43). The plate is sucked by the negative pressure of the suction nozzle assembly (45). The movable platform (42) and the movable plate (44) are driven upward to lift the plate by the cylinder (43). Step 2: supporting the plate. The suction nozzle assembly (45) increases the suction force. After the distance between the movable platform (42) and the movable plate (44) is reduced, the plate is placed at the supporting height position of the supporting assembly (46). During this process, the supporting assembly (46) starts to shrink towards the plate under the drive of the transmission assembly (47) until the plate is supported. Step 3, loading of the plate, the driving mechanism (5) drives the loading rack (2) to move in the direction of the lower rack (3) until it reaches the predetermined processing position of the machine tool, the cylinder (43) drives the movable platform (42) and the movable plate (44) to move downward, the suction nozzle assembly (45) releases the plate, and at the same time the supporting assembly (46) expands outward under the drive of the transmission assembly (47) until the plate is stably lowered, and the loading is completed; Step 4, unloading of the plate, the driving mechanism (5) drives the upper material rack (2) and the lower material rack (3) to reciprocate one round trip to move back and forth to the original position. After the processing is completed, the picking mechanism (4) at the bottom of the lower material rack (3) repeats the plate suction process in step 1, and then the driving mechanism (5) reverses the work to drive the lower material rack (3) to move to the position of the upper material rack (2), the cylinder (43) drives the movable platform (42) and the movable plate (44) to move downward, and the suction nozzle assembly (45) releases the plate. At the same time, the supporting assembly (46) expands outward under the drive of the transmission assembly (47) until the plate is smoothly put down, and unloading is completed; In step five, during step four, the unloading rack (3) is driven by the driving mechanism (5) to repeat the processes of step one, step two and step three, and during the unloading process, the unloading rack (3) cooperates with the guide rail (6) to lift the picked-up plate upward to pass over the plate picked up by the loading rack (2), thereby realizing alternating loading and unloading.

Images