A type of automatic destacking line for sheet metal in the same direction with two stations

Abstract

This invention relates to the field of sheet metal processing technology, specifically to a co-directional dual-station automatic destacking line for sheet metal, comprising a frame, a first feeding line, a second feeding line, a conveying device, a first pushing device, a second pushing device, and a control system. A clamping conveyor is mounted on the frame. Both the first and second feeding lines are located below the frame, and respectively, a first stacking rack and a second stacking rack capable of lifting and lowering are mounted on the first and second feeding lines. One end of the conveying device is hinged to the frame and erected above the first stacking rack, while the other end of the conveying device can descend and connect to the clamping conveyor line. The first pushing device can move downwards through the conveying device and push the top layer of sheet metal from the first stacking rack into the clamping conveyor line. The second pushing device can push the top layer of sheet metal from the second stacking rack into the conveying device. This co-directional dual-station destacking line for sheet metal can quickly destacking sheet metal at different stations, resulting in high work efficiency.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, specifically to an automatic destacking line for sheet metal in the same direction with two workstations. Background Technology

[0002] Destacking involves removing finished or semi-finished products from pallets and transferring them to warehouse storage / processing stations. In the board processing process, it is generally necessary to destacking the finished boards one by one and then conveying them piece by piece to a vision inspection system for defect detection via a conveyor belt. Only boards without defects can leave the factory.

[0003] Existing depalletizing and palletizing robots include robotic arms equipped with robotic hands for palletizing or depalletizing. For example, patent CN212531451U discloses a multi-layer frame depalletizing machine, which also uses a robotic arm design to depalletize boards between two workstations. Because the robotic arm has many joints, although it can achieve flexible movements, its efficiency is low and it is not suitable for the requirements of rapid depalletizing of boards. Summary of the Invention

[0004] In order to overcome one of the shortcomings of the prior art, the purpose of this invention is to provide a double-station automatic destacking line for sheet metal in the same direction. This double-station destacking equipment for sheet metal adopts a double-station destacking design, which can quickly realize the destacking of sheet metal and has high working efficiency.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] An automatic depalletizing line for sheet metal with two stations in the same direction includes a frame, a first feeding line, a second feeding line, a conveying device, a first pushing device, and a second pushing device. A clamping conveyor is mounted on the frame. The first feeding line is located below the frame, and its output end is equipped with a first stacking frame that can be raised and lowered. The second feeding line is located below the frame, and its output end is equipped with a second stacking frame that can be raised and lowered. The conveying device has a swing output end and a fixed input end. The fixed input end of the conveying device is hinged to the end of the frame near the second stacking frame, and the swing output end of the conveying device is mounted above the first stacking frame. The device's swing output end can descend and connect to the input end of the clamping conveyor line; the first pushing device is disposed on the area above the conveyor on the frame, and the pushing end of the first pushing device can move downward through the conveyor and push the uppermost plate of the first palletizing rack to the input end of the clamping conveyor line; the second pushing device is disposed on the area directly above the second palletizing rack on the frame, and the second pushing device can push the plate on the second palletizing rack into the fixed input end of the conveyor; the control system is electrically connected to the first feeding line, the second feeding line, the conveyor, the first pushing device, and the second pushing device.

[0007] Furthermore, the conveying device includes a take-up and release mechanism, a swing frame, rotating rollers rotatably mounted on both ends of the swing frame, and several conveyor belts with gaps wound around the two rotating rollers. Both ends of the rotating rollers near the second palletizing frame are rotatably mounted on the frame via bearings. The swing frame is provided with a drive mechanism, which drives the rotating rollers near the second palletizing frame to rotate. The take-up and release mechanism is mounted on the frame, and the take-up and release end of the take-up and release mechanism is hinged to the end of the swing frame near the clamping conveyor line. The take-up and release mechanism can drive the swing frame to swing relative to the frame around the rotating rollers near the second palletizing frame to connect or disconnect the clamping conveyor line. The pushing end of the first pushing device can move through the gaps between the conveyor belts and act on the uppermost plate of the first palletizing frame. The take-up and release mechanism and the drive mechanism are both electrically connected to the control system.

[0008] Furthermore, the take-up and release mechanism includes a traction frame, a movable frame with one end hinged to both ends of the traction frame, and a take-up and release telescopic electric cylinder. The two ends of the roller near one end of the clamping conveyor line are rotatably mounted on both ends of the traction frame via bearings. The other end of the movable frame is hinged to the machine frame. The mounting end of the take-up and release telescopic electric cylinder is hinged to the machine frame. The telescopic end of the take-up and release telescopic electric cylinder is hinged to the movable frame. The take-up and release telescopic electric cylinder is electrically connected to the control system.

[0009] Furthermore, the conveying device also includes clamping rollers, the two ends of which are mounted on the swing frame via elastic seats, and the clamping rollers can cooperate with the conveyor belt to clamp the plate.

[0010] Furthermore, the elastic seat includes a seat body, a slide rail disposed on the seat body, a sliding seat slidably disposed on the slide rail, and an adjusting bolt screwed onto the seat body. The seat body is mounted on a swing frame, and one end of the clamping rod is rotatably mounted on the sliding seat. A connecting rod is provided on one end of the adjusting bolt. The connecting rod is movably inserted into the sliding seat and can be rotatably connected to the sliding seat. An adjusting spring is movably fitted on the connecting rod. One end of the adjusting spring abuts against the sliding seat, and the other end abuts against the end face of the adjusting bolt.

[0011] Furthermore, the first pushing device includes a walking mechanism, a pressing mechanism hinged at one end to the walking mechanism, and a pushing telescopic electric cylinder. The walking mechanism is mounted on the frame and can reciprocate along the conveying direction of the clamping conveyor line. One end of the pushing telescopic electric cylinder is connected to the walking mechanism, and the other end is hinged to the pressing mechanism. The pushing telescopic electric cylinder can drive the pressing mechanism to swing downward to pass through the conveying device and hook the uppermost plate of the first stacking rack. The pushing telescopic electric cylinder is electrically connected to the control system.

[0012] Furthermore, the pressing mechanism includes a mounting frame, a drive rod, a movable rod, and a pressing seat. The mounting frame is mounted on the traveling mechanism. One end of the drive rod and the movable rod are both hinged to the mounting frame, and the other end of the drive rod and the movable rod are both hinged to the pressing seat. The mounting frame, the drive rod, the movable rod, and the pressing seat form a four-sided hinged linkage structure. The telescopic end of the pusher telescopic electric cylinder is hinged to the drive rod. The control system can control the pusher telescopic electric cylinder to drive the four-sided hinged linkage structure to deform through the conveying device and force the pressing seat to hook the uppermost plate of the first stacking rack.

[0013] Furthermore, the bottom of the lower pressure seat is provided with an installation groove, and a pressure plate is provided in the installation groove. The pressure plate passes through the installation groove via a guide post, and one end of the plate is locked with a nut. A shock-absorbing spring is fitted on the guide post in the area between the pressure plate and the bottom of the installation groove. The two ends of the shock-absorbing spring abut against the bottom of the pressure plate and the installation groove, respectively. A hook is provided on the end of the pressure plate away from the clamping conveyor line.

[0014] Furthermore, the traveling mechanism includes a track, a sliding platform, and a traveling motor mounted on the sliding platform. The track is mounted on a frame, and the sliding platform is slidably mounted on the track. A rack is mounted on the frame and is parallel to the track. The output end of the traveling motor meshes with the rack via a gear, and the traveling motor is electrically connected to the control system.

[0015] Furthermore, the clamping conveyor line includes a receiving belt and a clamping belt. The receiving belt is rotatably mounted on the frame, and the clamping belt is rotatably mounted on the frame in the area above the receiving belt. The receiving belt and the clamping belt can cooperate to clamp the plates. The end of the receiving belt near the first stacking frame extends out and forms a receiving part.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention discloses a dual-station automatic depalletizing line for sheet metal, employing a dual-station design. This allows for rapid replacement of sheets from either the first or second palletizing rack after they have been conveyed outwards. This effectively reduces the stacking time on conventional palletizers and significantly improves depalletizing efficiency. Specifically, the first and second pushing devices push the stacked sheets from the first and second palletizing racks layer by layer, guiding them into the conveyor line. Compared to traditional robotic arm-based handling, the entire depalletizing process is simpler and involves fewer movements, resulting in higher transfer efficiency, lower precision requirements for the equipment, and consequently reduced equipment costs. In addition, a conveying device is designed to span above the first stacking rack. Its swingable design allows the first pushing device to lift up and avoid the boards on the first stacking rack when pushing them upwards. When the second feeding line is conveying the boards, the conveying device can be lowered to connect with the clamping conveyor line. This design can effectively save space and allows for free switching between the first and second feeding lines, enabling rapid destacking of the boards.

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0019] Figure 1 This is a top view of an embodiment of the present invention;

[0020] Figure 2 This is a left view of an embodiment of the present invention;

[0021] Figure 3 This is a partial structural schematic diagram of an embodiment of the present invention;

[0022] Figure 4This is a schematic diagram of the structure of the conveying device and the first pushing device in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the conveying device and the first pushing device cooperating in another embodiment of the present invention;

[0024] Figure 6 This is a cross-sectional view of the elastic seat in an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the pressing mechanism in an embodiment of the present invention.

[0026] Explanation of icon numbers:

[0027] Frame 100, clamping conveyor line 110, receiving belt 111, clamping belt 112, receiving part 113, rack 120, first feeding line 200, first stacking frame 210, feeding conveyor line 220, frame body 221, rotating roller 222, feeding motor 223, second feeding line 300, second stacking frame 310, conveying device 400, swing output end 410, fixed input end 420, take-up and release mechanism 430, traction frame 431, movable frame 432, take-up and release telescopic electric cylinder 433, swing frame 440, rotating roller 450, conveyor belt 460, drive 470, clamping roller, elastic seat, seat body, slide rail, sliding seat, adjusting bolt, connecting rod, adjusting spring, first pushing device, walking mechanism, track, sliding platform, walking motor, pressing mechanism, mounting bracket, hook, driving rod, movable rod, pressing seat, mounting groove, pressing plate, guide post, shock absorber spring, pushing telescopic electric cylinder, second pushing device, 600 Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] See Figures 1 to 7This application provides a double-station automatic depalletizing line for sheet metal, including a frame 100, a first feeding line 200, a second feeding line 300, a conveying device 400, a first pushing device 500, and a second pushing device 600. A clamping conveyor line 110 is mounted on the frame 100. The first feeding line 200 is located below the frame 100, and its output end is equipped with a first stacking frame 210 capable of being raised and lowered. The second feeding line 300 is located below the frame 100, and its output end is also equipped with a second stacking frame 310 capable of being raised and lowered. The conveying device 400 has a swing output end 410 and a fixed input end 420. The fixed input end 420 of the conveying device 400 is hinged to the end of the frame 100 near the second stacking frame 310, and the swing output end 410 of the conveying device 400 is mounted on the first stacking frame 310. Above the frame 210, the swing output end 410 of the conveying device 400 can descend and connect with the input end of the clamping conveyor line 110; the first pushing device 500 is disposed on the area of ​​the frame 100 above the conveying device 400, and the pushing end of the first pushing device 500 can move downward through the conveying device 400 and push the uppermost plate of the first palletizing frame 210 to the input end of the clamping conveyor line 110; the second pushing device 600 is disposed on the area of ​​the frame 100 directly above the second palletizing frame 310, and the second pushing device 600 can push the plate on the second palletizing frame 310 into the fixed input end 420 of the conveying device 400; the control system is electrically connected to the first feeding line 200, the second feeding line 300, the conveying device 400, the first pushing device 500, and the second pushing device 600.

[0030] This dual-station depalletizing equipment for sheet metal adopts a dual-station design, allowing the other station to quickly replace the sheet metal after it has been conveyed outward from either the first or second palletizing rack 210. This effectively reduces the stacking time of sheet metal on conventional palletizers and significantly improves depalletizing efficiency. Specifically, the first pushing device 500 and the second pushing device 600 push the stacked sheet metal on the first and second palletizing racks 210 and 310 layer by layer, respectively, into the clamping conveyor line 110. Compared to the traditional method of handling using a robotic arm, the entire depalletizing process is simpler and involves fewer movements, resulting in higher transfer efficiency, lower precision requirements for the equipment, and thus reduced equipment costs. In addition, a conveying device 400 is designed, which spans above the first stacking rack 210. Its swingable design allows the first pushing device 500 to lift up and avoid the boards on the first stacking rack 210 when pushing the boards with the first pushing device 500. When the second feeding line 300 is conveying the boards, the conveying device 400 can be lowered to connect with the clamping conveyor line 110. This design can effectively save space and allows for free switching between the first feeding line 200 and the second feeding line 300 to achieve rapid destacking of the boards.

[0031] It should be noted that the first pushing device 500 and the second pushing device 600 in this application can adopt the same structural design, which simplifies the structure and facilitates later maintenance. Similarly, the first feeding line 200 and the second feeding line 300 can also adopt the same structural design, which can effectively reduce equipment costs and simplify the structure. In this application, for the sake of clarity in explaining the specific structure of the first feeding line 200 and the second feeding line 300, only the first feeding line 200 is described as an example. In this application, the first feeding line 200 includes a loading conveyor line 220, which is connected to external loading equipment. The output end of the loading conveyor line 220 is connected to the first stacking rack 210, enabling the stacked plates conveyed on the loading conveyor line 220 to be smoothly transferred to the first stacking rack 210. The loading conveyor line 220 is electrically connected to the control system. The control system in this application is a conventional PLC control system, which can be programmed using an existing control motherboard. In fact, the control system in this application can also be the control system provided in the remote control system for the conveying device of tunnel cable pipe in patent publication number CN108190617A, which is also mainly used to control the action of equipment such as cylinders and motors.

[0032] See Figure 1In this application, the feeding conveyor line 220 is specifically structured as follows: a frame 221, rotating rollers 222 mounted on the frame 221, and a feeding motor 223 that drives the rotating rollers 222 to rotate. The feeding motor 223 is electrically connected to the control system. Several sets of rotating rollers 222 are arranged side by side on the frame 221. To facilitate driving, one end of each rotating roller 222 is connected to the output end of the feeding motor 223 via a chain.

[0033] Furthermore, the first stacking frame 210 is actually a traditional lifting shear frame or a lifting structure driven by other methods, which will not be described in detail here. In order to facilitate the smooth transfer of the plate stacks on the feeding conveyor line 220 to the first stacking frame 210, in one embodiment of this application, a bearing platform is provided on the top of the first stacking frame 210. The bearing platform is provided with several rotatable bearing rollers, and a drive system for driving at least one bearing roller to rotate is designed on the bearing platform. This design enables the bearing platform to smoothly receive the plate stacks output from the feeding conveyor line 220.

[0034] See Figure 2 To better clamp the output sheet metal and prevent it from jumping when output from the conveyor 400 or the first stacking rack 210, in one embodiment of this application, the clamping conveyor line 110 includes a receiving belt 111 and a clamping belt 112. The receiving belt 111 is rotatably mounted on the frame 100, and the clamping belt 112 is rotatably mounted on the frame 100 in the area above the receiving belt 111. The receiving belt 111 and the clamping belt 112 can cooperate to clamp the sheet metal. One end of the receiving belt 111 extends near the first stacking rack 210 and forms a receiving portion 113. The receiving belt 111 and the clamping belt 112 can be driven by the same motor, which simplifies the structure. The rotating shafts of the receiving belt 111 and the clamping belt 112 can be connected to the output end of the motor via belts or gears. In addition, the main function of the receiving part 113 is to facilitate early contact with the end of the plate and bear its weight, so that the receiving belt 111 can drive the plate forward and finally be clamped by the clamping belt 112.

[0035] See further Figures 2 to 7To enable the conveying device 400 to freely switch between the first stacking frame 210 and the second stacking frame 310, and to ensure that the entire clamping conveyor line 110 can continuously output the plates, in one embodiment of this application, the conveying device 400 includes a take-up and release mechanism 430, a swing frame 440, rotating rollers 450 rotatably mounted on both ends of the swing frame 440, and several conveyor belts 460 with gaps wound around the two rotating rollers 450. Both ends of the rotating roller 450 near the second stacking frame 310 are rotatably mounted on the frame 100 via bearings. A drive mechanism 470 is provided on the swing frame 440, and the drive mechanism 470 drives the rollers near the second stacking frame 310... The roller 450 at one end of the stacking rack 310 rotates; the take-up and release mechanism 430 is mounted on the frame 100, and the take-up and release end of the take-up and release mechanism 430 is hinged to the end of the swing frame 440 near the clamping conveyor line 110. The take-up and release mechanism 430 can drive the swing frame 440 to swing relative to the frame 100 around the roller 450 near the end of the second stacking rack 310 to connect or disconnect the clamping conveyor line 110; the pushing end of the first pushing device 500 can move through the gap between the conveyor belts 460 and act on the uppermost plate of the first stacking rack 210, wherein the control system controls the operation of the take-up and release mechanism 430 and the drive mechanism 470.

[0036] It should be noted that the fixed input end 420 is actually the end of the swing frame 440 near the second stacking frame 310, while the swing output end 410 is the end of the swing frame 440 near the clamping conveyor line 110. In the above embodiment, the take-up and release mechanism 430 can actually be a conventional telescopic electric cylinder or pneumatic cylinder structure, the main purpose of which is to facilitate the control of the swing frame 440's swing. Specifically, when the take-up and release mechanism 430 controls the swing frame 440 to lower, the overlapping structure at the end of the swing frame 440 precisely matches the corresponding structure on the frame 100. This prevents the swing frame 440 from swinging excessively relative to the frame 100 during the conveyor belt 460's transport of the sheet metal, thus avoiding interference with normal transport. Furthermore, the conveyor belt 460 is formed by several belts wound around the rotating roller 450, and the pushing end of the first pushing device 500 moves through the gap between two belts, ensuring that the first pushing device 500 is not affected by the structure of the conveyor device 400 during normal operation. In the above embodiments, the drive mechanism 470 is actually a conventional motor structure, which is mainly used to drive the rotating roller 450 to rotate.

[0037] See Figures 3 to 5Furthermore, in order to better ensure that the swing frame 440 has sufficient room for movement and stable operation during the take-up and take-down process, in one embodiment, the take-up and take-down mechanism 430 includes a traction frame 431, a movable frame 432 with one end hinged to both ends of the traction frame 431, and a take-up and take-down telescopic electric cylinder 433. The two ends of the roller 450 near one end of the clamping conveyor line 110 are rotatably mounted on both ends of the traction frame 431 through bearings. The other end of the movable frame 432 is hinged to the frame 100. The mounting end of the take-up and take-down telescopic electric cylinder 433 is hinged to the frame 100. The telescopic end of the take-up and take-down telescopic electric cylinder 433 is hinged to the movable frame 432. The take-up and take-down telescopic electric cylinder 433 is electrically connected to the control system. The structure formed by the traction frame 431 and the movable frame 432 provides a certain degree of rigidity throughout the entire retraction and extension process, preventing excessive swaying of the swing frame 440. Simultaneously, the structure of both components limits the sway output end 410 of the swing frame 440, reducing vibration of the entire swing frame 440 during operation. In the actual design, the traction frame 431 is H-shaped, facilitating hinged connection with the swing frame 440 while maintaining overall rigidity.

[0038] See further Figure 5 and Figure 6 To ensure the relative stability of the sheet metal conveyed on the swing frame 440 while providing sufficient power for forward transport, in an improved embodiment, the conveying device 400 further includes clamping rollers 480. The two ends of the clamping rollers 480 are mounted on the swing frame 440 via elastic seats 490. The clamping rollers 480 cooperate with the conveyor belt 460 to clamp and transport the sheet metal. The main function of the elastic seats 490 in this embodiment is to better support the ends of the sheet metal on the conveyor belt 460, while also accommodating vibrations during transport and improving conveying stability.

[0039] See Figure 6In the above embodiments, the elastic seat 490 is a conventional elastic structure. However, in some embodiments, to improve adaptability and accommodate different sheet thicknesses, the elastic seat 490 includes a seat body 491, a slide rail 492 disposed on the seat body 491, a sliding seat 493 slidably disposed on the slide rail 492, and an adjusting bolt 494 screwed onto the seat body 491. The seat body 491 is mounted on the swing frame 440, and one end of the clamping rod 480 is rotatably mounted on the sliding seat 493. A connecting rod 495 is provided on one end of the adjusting bolt 494. The connecting rod 495 is movably inserted into the sliding seat 493 and can be rotatably connected to the sliding seat 493. An adjusting spring 496 is movably fitted on the connecting rod 495. One end of the adjusting spring 496 abuts against the sliding seat 493, and the other end abuts against the end face of the adjusting bolt 494. The end of the connecting rod 495 is locked to the sliding seat 493 by a pin or retaining ring, which prevents them from slipping off each other. It should be noted that in this embodiment, the operator can adjust the compression force of the adjusting spring 496 by adjusting the relative distance between the adjusting bolt 494 and the sliding seat 493, thereby adjusting the clamping distance between the clamping roller 480 and the conveyor belt 460. The entire adjustment process is simple and convenient.

[0040] See further Figure 1 , Figure 2 and Figure 7 In this application, the primary function of the first pushing device 500 is to push the uppermost layer of the first palletizing rack 210 into the clamping conveyor line 110, while simultaneously passing through the conveying device 400. To achieve this function, in one embodiment of this application, the first pushing device 500 includes a traveling mechanism 510, a pressing mechanism 520 hinged at one end to the traveling mechanism 510, and a pushing telescopic electric cylinder 530. The traveling mechanism 510 is mounted on the frame 100 and can reciprocate along the conveying direction of the clamping conveyor line 110. One end of the pushing telescopic electric cylinder 530 is connected to the traveling mechanism 510, and the other end is hinged to the pressing mechanism 520. The pushing telescopic electric cylinder 530 can drive the pressing mechanism 520 to swing downwards to pass through the conveying device 400 and hook the uppermost layer of the first palletizing rack 210. The traveling mechanism 510, the pressing mechanism 520, and the pushing telescopic electric cylinder 530 are all electrically connected to the control system.

[0041] In the above embodiments, the walking mechanism 510 can be a conventional sliding structure, such as a screw slide structure or a slide rail telescopic cylinder structure, as long as it can achieve the position shifting back and forth. In addition, in this embodiment, the pressing mechanism 520 can be a simple fixed structure, such as an L-shaped fixed block structure, which can also achieve the function of swinging and pushing the uppermost plate of the first stacking frame 210 as described in this application.

[0042] See further Figure 7 To achieve a small operating space and structural stability during the pushing process, in an improved embodiment of this application, the pressing mechanism 520 includes a mounting frame 521, a drive rod 523, a movable rod 524, and a pressing seat 525. The mounting frame 521 is mounted on the walking mechanism 510. One end of the drive rod 523 and the movable rod 524 are hinged to the mounting frame 521, and the other end of the drive rod 523 and the movable rod 524 are hinged to the pressing seat 525. The mounting frame 521, the drive rod 523, the movable rod 524, and the pressing seat 525 form a four-sided hinged linkage structure. The telescopic end of the pusher telescopic cylinder 530 is hinged to the drive rod 523. The control system can control the pusher telescopic cylinder 530 to drive the four-sided hinged linkage structure to deform through the conveying device 400 and force the pressing seat 525 to hook the uppermost plate of the first stacking rack 210. In this embodiment, the four-sided hinged linkage structure only requires limiting the spatial position of two sides to make the entire structure stable. Therefore, the mounting frame 521 is a fixed structure, while the drive rod 523 is controlled by the pusher telescopic electric cylinder 530 to control its spatial movement, thereby stably controlling the position of the entire lower pressure seat 525. As long as the dimensions of the four-sided hinged linkage structure are properly designed, the lower end face of the lower pressure seat 525 can remain parallel to the conveyed plate during operation, facilitating contact with the front of the plate.

[0043] See Figure 7 In some embodiments, to ensure stable contact between the lower pressure seat 525 and the sheet material during lowering while avoiding hard contact, the bottom of the lower pressure seat 525 is provided with a mounting groove 526. A pressure plate 527 is disposed within the mounting groove 526. The pressure plate 527 passes through the mounting groove 526 via a guide post 528, with one end secured by a nut. A shock-absorbing spring 529 is fitted onto the area between the guide post 528 and the bottom of the mounting groove 526, with both ends of the shock-absorbing spring 529 abutting against the bottom of the pressure plate 527 and the mounting groove 526, respectively. A hook 522 is provided on the end of the pressure plate 527 away from the clamping conveyor line 110. The design of the pressure plate 527 ensures constant contact with the surface of the sheet material, increasing contact stability and preventing excessive bouncing of the sheet material during movement. When the guide post 528 moves out of the lower pressure seat 525, the hole it passes through is slightly larger than the outer diameter of the guide post 528, which allows the entire pressure plate 527 to have a certain amount of room to swing along the axis of the guide post 528. In addition, the design of the hook 522 facilitates its contact with the end face of the plate, improving the stability of the push.

[0044] further Figures 1 to 3 In one embodiment of this application, to achieve the reciprocating motion of the pressing mechanism 520 to continuously push the sheet material forward, the traveling mechanism 510 includes a track 511, a sliding platform 512, and a traveling motor 513 mounted on the sliding platform 512. The track 511 is mounted on the frame 100, and the sliding platform 512 is slidably mounted on the track 511. A rack 120 is provided on the frame 100 and arranged parallel to the track 511. The output end of the traveling motor 513 meshes with the rack 120 through a gear, and the traveling motor 513 is electrically connected to the control system. Alternatively, the sliding platform 512 can also be driven by a motor lead screw to achieve conveying, which can be selected according to actual usage requirements. In this embodiment, the use of gears and rack 120 effectively improves the conveying force.

[0045] See you again Figure 2 It should be noted that in this application, since the first pushing device 500 needs to pass down through the conveying device 400 and hook the uppermost plate of the first stacking frame 210 during use, while the second pushing device 600 only needs to push the uppermost plate of the second stacking frame 310 back and forth, the second pushing device 600 in this application can be made to cooperate with the above-mentioned walking mechanism 510 and the lower pressure seat 525. That is, the lower pressure seat 525 is directly installed on the walking mechanism 510, which simplifies the overall structure and meets the needs of the work.

[0046] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A plate same-direction double-station automatic unstacking line, characterized in that, The utility model relates to a kind of automatic plate feeding device, including Frame, which is provided with pinch conveying line on it; First feeding line, which is arranged below the frame, and the output end of the first feeding line is provided with a first stacking frame capable of lifting; Second feeding line, which is arranged below the frame, and the output end of the second feeding line is provided with a second stacking frame capable of lifting; Conveying device with swinging output end and fixed input end, the fixed input end of the conveying device is hinged on one end of the frame close to the second stacking frame, and the swinging output end of the conveying device is erected above the first stacking frame, and the swinging output end of the conveying device can be lowered and communicated with the input end of the pinch conveying line; First pushing device, which is arranged on the area of the frame above the conveying device, and the pushing end of the first pushing device can move downward through the conveying device and push the uppermost layer of plates on the first stacking frame to the input end of the pinch conveying line; Second pushing device, which is arranged on the area of the frame directly above the second stacking frame, and the second pushing device can push the plates on the second stacking frame into the fixed input end of the conveying device; Control system, which is electrically connected with the first feeding line, the second feeding line, the conveying device, the first pushing device and the second pushing device.

2. The automatic same-direction double-station unstacking line for sheet materials according to claim 1, characterized in that: The conveying device includes a retractable mechanism, a swinging frame, rotating rollers arranged on both ends of the swinging frame, and a plurality of gap conveying belts wound around the two rotating rollers, both ends of the rotating roller close to the second stacking frame are rotatably mounted on the frame through bearings, a driving mechanism is arranged on the swinging frame, and the driving mechanism drives the rotating roller close to the second stacking frame to rotate;The retractable mechanism is mounted on the frame, the retracting end of the retractable mechanism is hinged to one end of the swinging frame close to the pinch conveying line, and the retractable mechanism can drive the swinging frame to swing around the rotating roller close to the second stacking frame relative to the frame to communicate or disconnect the pinch conveying line;The pushing end of the first pushing device can move through the gap between the conveying belts and act on the uppermost layer of plates on the first stacking frame, and the driving mechanism is electrically connected with the control system.

3. The automatic same-direction double-station unstacking line for sheet materials according to claim 2, characterized in that: The retractable mechanism includes a pulling frame, a movable frame hinged to one end of the pulling frame, and a retractable telescopic cylinder, both ends of the rotating roller close to the pinch conveying line are rotatably mounted on both ends of the pulling frame through bearings, the other end of the movable frame is hinged to the frame, the mounting end of the retractable telescopic cylinder is hinged to the frame, the telescopic end of the retractable telescopic cylinder is hinged to the movable frame, and the retractable telescopic cylinder is electrically connected with the control system.

4. The automatic same-direction double-station unstacking line for sheet materials according to claim 2, characterized in that: The conveying device further includes a clamping rod, both ends of the clamping rod are mounted on the swinging frame through elastic seats, and the clamping rod can clamp the plates in cooperation with the conveying belts.

5. The automatic same-direction double-station unstacking line for sheet materials according to claim 4, characterized in that: The elastic seat comprises a seat body, a slide rail arranged on the seat body, a sliding seat slidably arranged on the slide rail, and an adjusting bolt screwed on the seat body, the seat body is mounted on the swing frame, one end of the clamping rod is rotatably mounted on the sliding seat; the adjusting bolt is provided with a connecting rod at one end, the connecting rod is movably inserted into the sliding seat and can be rotatably connected with the sliding seat, the adjusting spring is movably sleeved on the connecting rod, one end of the adjusting spring abuts against the sliding seat, and the other end abuts against the end face of the adjusting bolt.

6. The automatic same-direction double-station unstacking line for sheet materials according to claim 1, characterized in that: The first pushing device comprises a walking mechanism, a pressing mechanism hingedly connected to one end of the walking mechanism, and a pushing telescopic electric cylinder, the walking mechanism is mounted on the rack and can reciprocate along the conveying direction of the clamping conveying line; one end of the pushing telescopic electric cylinder is connected to the walking mechanism, and the other end is hingedly connected to the pressing mechanism, the pushing telescopic electric cylinder can drive the pressing mechanism to swing downward to pass through the conveying device and hook the uppermost layer of the first stacking frame, and the walking mechanism, the pressing mechanism and the pushing telescopic electric cylinder are electrically connected with the control system.

7. The automatic same-direction double-station unstacking line for sheet materials according to claim 6, characterized in that: The pressing mechanism comprises a mounting frame, a driving rod, a movable rod and a pressing seat, the mounting frame is mounted on the walking mechanism, one end of the driving rod and the movable rod is hingedly connected to the mounting frame, and the other end of the driving rod and the movable rod is hingedly connected to the pressing seat, the mounting frame, the driving rod, the movable rod and the pressing seat form a four-edge hinged linkage structure, the telescopic end of the pushing telescopic electric cylinder is hingedly connected to the driving rod, and the control system can control the pushing telescopic electric cylinder to drive the four-edge hinged linkage structure to deform to pass through the conveying device and force the pressing seat to hook the uppermost layer of the first stacking frame.

8. The automatic same-direction double-station unstacking line for sheet materials according to claim 7, characterized in that: The bottom of the pressing seat is provided with a mounting groove, the mounting groove is provided with a pressing piece, the pressing piece passes through the mounting groove and is locked by a nut at one end, a damping spring is sleeved on the region between the pressing piece and the bottom of the mounting groove, and the two ends of the damping spring abut against the pressing piece and the bottom of the mounting groove respectively; the end of the pressing piece away from the clamping conveying line is provided with a hook portion.

9. The automatic board unstacking line with two same-direction double stations according to claim 6, characterized in that: The walking mechanism comprises a track, a sliding platform and a walking motor arranged on the sliding platform, the track is arranged on the rack, the sliding platform is slidably mounted on the track, a rack parallel to the track is arranged on the rack, the output end of the walking motor is engaged with the rack through a gear, and the walking motor is electrically connected with the control system.

10. The automatic single or double unstacking line for panels according to claim 1, characterized in that: The clamping conveying line comprises a receiving belt and a clamping belt, the receiving belt is rotatably mounted on the rack, the clamping belt is rotatably mounted on the rack above the receiving belt, and the receiving belt and the clamping belt can clamp the plate together; the end of the receiving belt close to the first stacking frame extends and forms a receiving portion.

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