High-layer multi-board veneer press

Abstract

The application provides a high-layer multi-board veneer pressing machine, and belongs to the technical field of plywood veneer pressing machines. The machine comprises a rack, a hot pressing device and an automatic loading device are installed on the rack, a plurality of unit hot pressing plates are arranged in the height direction of the hot pressing device at intervals, the automatic loading device is provided with a horizontal moving frame and a driving device, a plurality of loading belt conveyors aligned with the gaps between adjacent unit hot pressing plates are arranged in the height direction of the horizontal moving frame at intervals. The driving device drives the horizontal moving frame to move laterally, so that the loading belt conveyor loaded with plywood is inserted into the gap between the corresponding two unit hot pressing plates. Subsequently, the driving device drives the horizontal moving frame to move reversely along the rack, and the loading belt conveyor moves the plywood to the discharging end at a speed equal to the above-mentioned reverse sliding speed, so that the plywood can fall on the unit hot pressing plate, and a device for moving the plywood is not needed to be arranged separately, the complexity of the equipment is greatly reduced, and the stability is high.

Description

Technical Field

[0001] This application belongs to the technical field of plywood veneer presses, and more specifically, relates to a high-rise multi-ply veneer press. Background Technology

[0002] In the plywood processing, a film is applied to both sides of the plywood through hot pressing to enhance its waterproof and moisture-proof properties. In the prior art, Chinese invention patent application CN116749288B disclosed by the applicant discloses an intelligent high-rise multi-ply automatic hot press. This solution includes a board feeding conveyor, a plywood conveying device, a board feeding and storage device, a rotary pusher robot, a hot pressing device, a board output and storage device, and a board output stacking conveyor. Both the board feeding and storage devices are equipped with automatic board clamping and moving devices. In practical use, the plywood transported by the board feeding conveyor is placed layer by layer into the board feeding and storage device via the plywood conveying device. Then, the automatic board clamping and moving device at the board feeding and storage device, in conjunction with the rotary pusher robot, moves the plywood into the hot pressing device for hot pressing. After hot pressing, the plywood is moved to the board output and storage device by the automatic board clamping and moving device at the board output and storage device, and finally, it is removed layer by layer by the board output stacking conveyor.

[0003] However, in the above process, the movement of plywood from the board feeding and storage device to the hot pressing device needs to be achieved by two separate devices: an automatic board clamping and moving device and a rotating pusher robot. This makes the entire device more complex, and the equipment cost and failure rate are both higher. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a high-rise multi-panel laminating press that integrates the device at the feeding end of the hot press for moving and carrying plywood into an automatic feeding device, significantly reducing the number of parts and the complexity of the equipment.

[0005] To achieve the above objectives, the technical solution of this application provides a high-rise multi-panel laminating press, including a frame and a control device. The frame is equipped with a hot pressing device, and several layers of unit hot pressing plates are arranged at intervals along the height direction of the hot pressing device. The hot pressing device is controlled by the control device. The frame is also equipped with an automatic loading device located on one side of the feed end of the hot pressing device. The automatic loading device has a horizontal moving frame and a drive device. The horizontal moving frame is slidably mounted on the frame through the drive device. Several layers of loading belt conveyors for carrying plywood are arranged at intervals along the height direction of the horizontal moving frame. The gaps between the discharge ends of the several layers of loading belt conveyors and the adjacent unit hot pressing plates are aligned layer by layer. The drive device and the several layers of loading belt conveyors are arranged at intervals along the height direction of the horizontal moving frame. All dry-layer loading belt conveyors are controlled by a control device. During operation, the drive unit drives the horizontal moving frame to slide along the frame, allowing the loading belt conveyor loaded with plywood to insert into the gap between the corresponding two-layer unit hot press plates. Subsequently, the drive unit drives the horizontal moving frame to slide in the opposite direction along the frame, causing the loading belt conveyor to move out of the gap between the unit hot press plates. At the same time as the loading belt conveyor moves out of the gap between the unit hot press plates, the loading belt conveyor moves the plywood towards its discharge end, and the speed at which the plywood is moved is the same as the speed at which the loading belt conveyor moves out of the gap between the corresponding two-layer unit hot press plates, so that the plywood falls onto the corresponding unit hot press plate in place.

[0006] Optionally, it also includes a feeding conveyor located on one side of the feeding end of the automatic feeding device. The automatic feeding device also includes a lifting frame and a vertical cylinder. The lifting frame is vertically slidably mounted on the frame via the vertical cylinder. The horizontal moving frame is horizontally slidably mounted on the lifting frame via a drive device. The lifting frame raises and lowers to align the feeding end of the feeding belt conveyor layer by layer to the discharging end of the feeding conveyor. Both the feeding conveyor and the vertical cylinder are controlled by a control device.

[0007] Optionally, the lifting frame is equipped with a slide rail at the bottom of the horizontal moving frame and racks on the front and rear sides of the horizontal moving frame. The slide rail and racks extend along the arrangement direction of the automatic feeding device and the hot pressing device. The bottom of the horizontal moving frame is provided with support rollers that roll and support the top of the slide rail. The driving device includes a drive motor fixedly installed on the top of the horizontal moving frame. The drive motor is controlled by a control device. A horizontal drive shaft is mounted on the top rotating frame of the horizontal moving frame. The horizontal drive shaft extends along the conveying direction perpendicular to the belt conveyor for feeding. Vertical drive shafts are installed on the front and rear sides of the horizontal moving frame through bearings. The drive motor is connected to the horizontal drive shaft. Both ends of the horizontal drive shaft are fixedly installed with bevel gears. The top ends of the two vertical drive shafts are fixedly installed with bevel gears, and the bottom ends of the two vertical drive shafts are fixedly installed with transmission gears. The bevel gears at the top ends of the two vertical drive shafts mesh with the two bevel gears, and the transmission gears at the bottom ends of the two vertical drive shafts mesh with the two racks.

[0008] Optionally, the horizontal moving frame, drive motor one, horizontal drive shaft and vertical drive shaft are all set on the feeding end side of the loading belt conveyor. The lifting frame one side facing the hot pressing device has several layers of support platforms arranged vertically. The several layers of support platforms correspond to several layers of loading belt conveyors one by one, and the several layers of support platforms are aligned with the feeding ends of several layers of unit hot pressing plates one by one. Each layer of loading belt conveyor is provided with a support wheel that rolls and supports the corresponding support platform at the bottom near the discharge end.

[0009] Optionally, the loading belt conveyor has a mounting frame, a drive axle, a driven axle, and a conveyor belt wound around the outside of the drive axle and the driven axle. Both the drive axle and the driven axle are rotatably mounted on the mounting frame. The drive axle is located on one side of the loading belt conveyor's feed end, and the driven axle is located on one side of the loading belt conveyor's discharge end. The mounting frame is fixedly connected to a horizontally moving frame on the side near the loading belt conveyor's feed end, and a support wheel is mounted on the mounting frame on the side near the loading belt conveyor's discharge end. The loading belt conveyor has an overrunning clutch. In each layer of the loading belt conveyor, the drive... One end of the axle is rotatably mounted with a drive sprocket via a bearing and an overrunning clutch. The output end of the drive motor has an output shaft, on which a drive sprocket is fixedly mounted. A driven sprocket is located at the bottom of all the loading belt conveyors on the horizontal moving frame. A drive chain is closedly sleeved on the outer side of the drive sprocket and the driven sprocket. The drive chain runs vertically through all the loading belt conveyors and meshes with the drive sprockets on all the loading belt conveyors. A second drive sprocket is also fixedly mounted on the output shaft. A second driven sprocket is fixedly mounted on the outer side of the horizontal drive shaft. A second drive chain is closedly sleeved on the outer side of the drive sprocket and the driven sprocket.

[0010] Optionally, the belt conveyor for loading also has an overrunning clutch II. In each layer of the belt conveyor for loading, the side of the drive wheel shaft I away from the drive sprocket is equipped with a drive gear via a bearing and the overrunning clutch II. The feed conveyor includes a wide belt conveyor and a swing engagement mechanism installed on the side of the wide belt conveyor. The swing engagement mechanism is arranged opposite to the drive gear. The wide belt conveyor has a mounting frame II, a drive motor II, a drive wheel shaft II, a driven wheel shaft II, and a conveyor belt II wound around the outside of the drive wheel shaft II and the driven wheel shaft II. The drive wheel shaft II is located at the discharge end of the wide belt conveyor and faces the automatic loading device. The drive motor II and the drive wheel shaft II are connected by a chain drive. The transmission connection is achieved by a swing engagement mechanism, which includes a swing cylinder, a swing frame, a swing gear, and a fixed gear. The swing frame is rotatably mounted on the outer side of the end of the drive shaft two via bearings. The base of the swing cylinder is hinged to the mounting frame two, and the output end of the swing cylinder is hinged to the swing frame two. A mounting shaft is fixedly connected to the swing frame two. The swing gear is rotatably mounted on the mounting shaft via bearings. The fixed gear is fixedly mounted on the outer side of the drive shaft two, and the swing gear meshes with the fixed gear. The swing cylinder drives the swing frame to rotate along the drive shaft two, causing the swing gear to mesh or disengage with the drive gear in the corresponding layer of the belt conveyor for loading materials. Both the drive motor two and the swing cylinder are controlled by a control device.

[0011] Optionally, a fall protection mechanism is provided on the top of the lifting frame. The fall protection mechanism includes a rotary cylinder and a rotary hook. The rotary hook is rotatably mounted on the top of the frame via a bearing. The base of the rotary cylinder is hinged to the frame, and the output end of the rotary cylinder is hinged to the rotary hook. A hook part is provided on the top of the lifting frame. The rotary cylinder is controlled by a control device. When the lifting frame rises to the gap between the corresponding unit hot press plates of the loading belt conveyor, the rotary cylinder drives the rotary hook to hook the bottom side of the hook part.

[0012] Optionally, the frame is also equipped with a plate storage device located on the discharge end side of the hot pressing device. The plate storage device has several layers of unit trays, and the feeding ends of the several layers of unit trays are aligned with the discharge ends of the several layers of unit hot pressing plates layer by layer. In each layer of the loading belt conveyor, a pushing component is fixedly connected to the end of the mounting frame facing the hot pressing device. After the plywood is hot-pressed in the hot pressing device, the drive device drives the horizontal moving frame to slide along the frame, so that the loading belt conveyor is inserted into the gap between the corresponding two layers of unit hot pressing plates. The pushing component pushes the plywood on the unit hot pressing plate and moves the plywood to the unit tray.

[0013] Optionally, the plate discharge and storage device further includes a second lifting frame and a second vertical cylinder. The second lifting frame is vertically slidably mounted on the frame via the second vertical cylinder, and the unit support plate is mounted on the second lifting frame. Each unit support plate includes a left support plate and a right support plate arranged on the front and rear sides of the second lifting frame, with the left support plate and the right support plate spaced apart from each other. A plate discharge conveyor is also provided at the bottom of the plate discharge and storage device. The plate discharge conveyor is located at the bottom of the gap between the left support plate and the right support plate. The discharge end of the plate discharge conveyor extends out of the plate discharge and storage device from the side of the plate discharge and storage device away from the hot pressing device. The second vertical cylinder and the plate discharge conveyor are both controlled by a control device.

[0014] Optionally, a fall protection mechanism 2 is provided on the top of the lifting frame 2. The fall protection mechanism 2 includes a rotating cylinder 2 and a rotating hook 2. The rotating hook 2 is rotatably mounted on the top of the frame via a bearing. The base of the rotating cylinder 2 is hinged to the frame, and the output end of the rotating cylinder 2 is hinged to the rotating hook 2. A hook part 2 is provided on the top of the lifting frame 2. The rotating cylinder 2 is controlled by a control device. When the lifting frame 2 rises to the point where the unit support plate is aligned with the corresponding unit hot press plate, the rotating cylinder 2 drives the rotating hook 2 to hook the bottom side of the hook part 2.

[0015] The advantages of the technical solution in this application compared to the prior art are as follows:

[0016] By driving the horizontal moving frame laterally via a drive unit, the loading belt conveyor can be inserted into the gap between the corresponding two layers of the unit hot press plates, moving the plywood on the loading belt conveyor into the hot press device. Subsequently, the drive unit drives the horizontal moving frame to slide in the opposite direction along the frame, and the loading belt conveyor moves the plywood towards the discharge end at a speed equal to the aforementioned reverse sliding speed, allowing the plywood to fall onto the unit hot press plate in place. In this way, the process of moving the plywood from the automatic loading device to the hot press device can be completed, eliminating the need for a separate automatic moving device for clamping the plywood and a rotating pusher robot, significantly reducing the complexity of the equipment, lowering costs, and increasing equipment stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a front view of the overall structure of a high-rise multi-panel laminating press;

[0019] Figure 2 This is a front view of the automatic feeding device.

[0020] Figure 3 Left view of the automatic feeding device structure;

[0021] Figure 4 A simplified schematic diagram illustrating the process of an automatic loading device transporting plywood to a hot pressing device.

[0022] Figure 5 for Figure 2 Enlarged view of a portion of point A in the middle;

[0023] Figure 6 for Figure 3 Enlarged view of a section at point B in the middle;

[0024] Figure 7 for Figure 6 Enlarged view of a section at point K;

[0025] Figure 8 for Figure 3 Enlarged view of a section at point C;

[0026] Figure 9 for Figure 3 Enlarged view of a section at point D;

[0027] Figure 10 A simplified diagram of the sensor control for the horizontal moving frame in an automatic loading device;

[0028] Figure 11 A simplified diagram of the lifting frame sensor control in an automatic loading device;

[0029] Figure 12 for Figure 1 Enlarged view of a section at point E in the middle;

[0030] Figure 13 for Figure 2 Enlarged view of a section at point F in the middle;

[0031] Figure 14 for Figure 3 Enlarged view of a section at point G in the middle;

[0032] Figure 15 This is a diagram showing the state of the oscillating meshing mechanism when the oscillating gear meshes with the drive gear.

[0033] Figure 16 This is a diagram showing the state of the oscillating meshing mechanism when the oscillating gear and the drive gear are separated.

[0034] Figure 17 for Figure 2 Enlarged view of a section at point H;

[0035] Figure 18 This is a front view of the plate unloading and storage device.

[0036] Figure 19 Right view of the plate feeding and storage device structure;

[0037] Figure 20 A simplified schematic diagram illustrating the process of an automatic loading device transporting plywood to a board discharge and storage device.

[0038] Figure 21 This is a simplified diagram of sensor control in a hot pressing device;

[0039] Figure 22 for Figure 19 Enlarged view of a section at point J;

[0040] Figure 23 A simplified diagram of sensor control in the board output and storage device;

[0041] Figure 24 for Figure 18 Enlarged view of section I in the middle.

[0042] Icons: 100. Plywood; 1. Frame; 2. Hot pressing device; 201. Unit hot pressing plate; 3. Automatic loading device; 301. Horizontal moving frame; 302. Loading belt conveyor; 303. Lifting frame one; 304. Vertical cylinder one; 305. Support frame one; 306. Longitudinal beam one; 307. Longitudinal beam two; 308. Top beam one; 309. Bottom beam one; 310. Longitudinal beam three; 311. Longitudinal beam four; 312. Top beam two; 313. Bottom beam two; 314. Lifting roller one; 315. Slide rail; 316. Rack; 317. Transmission gear; 318. Support roller; 319. Drive motor one; 320. Horizontal drive shaft; 321. Vertical drive shaft; 322. Bevel gear one; 323. Bevel gear two; 3 24. Top Beam 3; 325. Bottom Beam 3; 326. Longitudinal Beam 5; 327. Support Platform; 328. Support Wheel; 329. Mounting Frame 1; 330. Drive Shaft 1; 331. Driven Shaft 1; 332. Conveyor Belt 1; 333. Overrunning Clutch 1; 334. Drive Sprocket; 335. Output Shaft; 336. Drive Sprocket 1; 337. Driven Sprocket 1; 338. Drive Chain 1; 339. Drive Sprocket 2; 340. Driven Sprocket 2; 341. Drive Chain 2; 343. Overrunning Clutch 2; 344. Drive Gear; 345. Fall Protection Mechanism 1; 346. Rotating Cylinder 1; 347. Rotating Hook 1; 348. Hook Part 1; 349. Pushing Component; 350. Tensioner; 351. Bearing 1; 35 2. End cap one; 353. Step one; 354. End face one; 355. Bearing two; 356. End cap two; 357. Step two; 358. End face two; 4. Feeding conveyor; 401. Wide belt conveyor; 402. Swinging meshing mechanism; 403. Mounting frame two; 404. Drive motor two; 405. Drive wheel shaft two; 406. Driven wheel shaft two; 407. Conveyor belt two; 408. Swing cylinder; 409. Swing frame; 410. Swing gear; 411. Fixed gear; 412. Mounting shaft; 5. Plate discharge and storage device; 501. Unit support plate; 502. Lifting frame two; 503. Vertical cylinder two; 504. Left support plate; 505. Right support plate; 506. Anti-fall mechanism two; 507. Rotating cylinder two; 508. Rotating hook two; 509. Hook part two; 510. Longitudinal beam six; 511. Longitudinal beam seven; 512. Top beam four; 513. Bottom beam four; 514. Longitudinal beam eight; 515. Lifting roller two; 516. Top beam five; 517. Bottom beam five; 518. Top beam six; 6. Plate conveyor; 701. Front limit deceleration travel switch of moving frame; 702. Front limit travel switch of moving frame; 703. Rear limit deceleration travel switch of moving frame; 704. Rear limit travel switch of moving frame; 705. Upper limit deceleration travel switch of lifting frame one; 706. Upper limit travel switch of lifting frame one; 707. Lower limit deceleration travel switch of lifting frame one; 708. Lower limit travel switch of lifting frame one; 709. Deceleration proximity switch for each layer of lifting frame one;710. Lifting frame floor-to-floor proximity switch one; 711. Hot-pressing floor-to-floor photoelectric switch; 712. Retracting plate floor-to-floor photoelectric switch; 713. Lifting frame upper limit deceleration travel switch two; 714. Lifting frame upper limit deceleration travel switch two; 715. Lifting frame lower limit deceleration travel switch two; 716. Lifting frame lower limit travel switch two; 717. Lifting frame floor-to-floor deceleration proximity switch two; 718. Lifting frame floor-to-floor proximity switch two; 719. Trigger block one; 720. Trigger block two; 721. Trigger block three; 722. Trigger block four; 723. Trigger block five. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0044] Example 1:

[0045] This embodiment provides a high-rise multi-panel veneer press. In this embodiment, the horizontal transport direction of the plywood 100 is taken as the positive X-axis, and the horizontal direction perpendicular to the X-axis is taken as the Y-axis. Based on Figure 1 As shown, the high-rise multi-panel laminating press includes a frame 1 and a control device. The frame 1 is equipped with a hot pressing device 2. The control device uses a PLC controller. Several layers of unit hot pressing plates 201 are arranged at intervals along the height direction of the hot pressing device 2. The hot pressing device 2 and its unit hot pressing plates 201 are both based on the hot pressing device and unit hot pressing plates disclosed in the applicant's Chinese invention patent application with publication number CN116749288B, entitled "Intelligent High-Rise Multi-Panel Automatic Hot Press." Their structure and principle are prior art and will not be described further. The hot pressing device 2 is controlled by the control device.

[0046] Based on the above structure, Figures 1 to 4As shown, the frame 1 is also equipped with an automatic loading device 3 located on one side of the feed end of the hot pressing device 2. The automatic loading device 3 has a horizontal moving frame 301 and a driving device. The horizontal moving frame 301 is slidably mounted on the frame 1 via the driving device, specifically sliding along the X-axis direction. Several layers of loading belt conveyors 302 for supporting plywood 100 are arranged at intervals along the height direction of the horizontal moving frame 301. The gaps between the discharge ends of the several layers of loading belt conveyors 302 and the adjacent unit hot pressing plates 201 are aligned layer by layer. The driving device and the several layers of loading belt conveyors 302 are both controlled by a control device. The high-rise multi-panel laminating press of this embodiment is used to apply a film to the upper and lower surfaces of the plywood 100 by hot pressing to increase the waterproof and moisture-proof performance of the plywood 100. Melamine film can be used for lamination. The melamine film has been pre-laminated on the upper and lower sides of the plywood 100 by local heating in the previous process. Each layer of material is loaded onto a belt conveyor 302, which carries plywood 100 that has been pre-filmed.

[0047] In use, the drive unit drives the horizontal moving frame 301 to slide along the frame 1, causing the loading belt conveyor 302, loaded with plywood 100, to insert into the gap between the corresponding two-layer unit hot press plates 201. Subsequently, the drive unit drives the horizontal moving frame 301 to slide in the opposite direction along the frame 1, causing the loading belt conveyor 302 to move out of the gap between the unit hot press plates 201. Simultaneously with the loading belt conveyor 302 moving out of the gap between the unit hot press plates 201, the loading belt conveyor 302 moves the plywood 100 towards its discharge end, and the speed at which the plywood 100 is moved is the same as the speed at which the loading belt conveyor 302 moves out of the gap between the corresponding two-layer unit hot press plates 201. Figure 4 The backward speed of the loading belt conveyor 302 in the negative X-axis direction is equal to the speed at which the loading belt conveyor 302 transports the plywood 100 in the positive X-axis direction. This allows the plywood 100 to fall onto the corresponding unit hot press plate 201 in place, completing the transfer of the plywood 100 from the automatic loading device 3 to the hot press device 2. Compared to the prior art where the plywood 100 is transferred through an automatic moving device for holding the board and a rotating pusher robot, this application integrates the function of transferring the plywood 100 into the automatic loading device 3, significantly reducing the complexity of the equipment, lowering costs, and improving equipment stability.

[0048] Furthermore, based on Figures 1 to 3As shown, the automatic loading device 3 also includes a feeding conveyor 4 located on one side of the feeding end. The automatic loading device 3 further includes a lifting frame 303 and a vertical cylinder 304. The lifting frame 303 is vertically slidably mounted on the frame 1 via the vertical cylinder 304. The horizontal moving frame 301 is horizontally slidably mounted on the lifting frame 303 via a drive device. The lifting frame 303, through lifting and lowering, aligns the feeding end of the loading belt conveyor 302 layer by layer to the discharging end of the feeding conveyor 4. The feeding conveyor 4 is used to transport plywood 100 that has been pre-laminated with film in the previous process. After plywood 100 is transported to one of the layer loading belt conveyors 302 via the feeding conveyor 4, the vertical cylinder 304 drives the lifting frame 303 to rise, aligning the bottom layer loading belt conveyor 302 with the discharge end of the feeding conveyor 4. The next piece of plywood 100 on the feeding conveyor 4 can then be transported to the next layer loading belt conveyor 302, and so on, until all layers of loading belt conveyors 302 are loaded with plywood 100. Subsequently, the drive device drives the horizontal moving frame 301 to slide along the frame 1, conveying all the plywood 100 on the loading belt conveyors 302 to the hot pressing device 2. Both the feeding conveyor 4 and the vertical cylinder 304 are controlled by a control device.

[0049] In this embodiment, based on Figure 2 As shown, the frame 1 is symmetrically equipped with support frames 305 on both sides of the automatic loading device 3 along the Y-axis. Each support frame 305 has a rectangular longitudinal beam 306, a second longitudinal beam 307, a top beam 308, and a bottom beam 309. The lifting frame 303 is also located on both sides of the automatic loading device 3 along the Y-axis, and each rectangular frame has a third longitudinal beam 310, a fourth longitudinal beam 311, a second top beam 312, and a second bottom beam 313. Specifically, during installation, two vertical hydraulic cylinders 304 are located at the two rectangular frames respectively. The top of the vertical hydraulic cylinder 304 is hinged to the top beam 308, and the bottom is hinged to the bottom beam 313. The two vertical hydraulic cylinders 304 synchronously extend and retract, driving the lifting frame 303 to rise and fall along the support frames 305. Meanwhile, the lifting frame 303 is equipped with lifting rollers 314 mounted on the top beam 312 and the bottom beam 313. Each side of the rectangular frame of the lifting frame 303 has four lifting rollers 314, which are arranged in pairs, rolling and clamping the outer sides of the longitudinal beams 306 and 307, which are opposite to each other along the X-axis. Thus, during the lifting process, the lifting rollers 314 roll along the longitudinal beams 306 and 307, clamping the support frame 305, providing support while ensuring the stability of the lifting frame 303.

[0050] Furthermore, based on Figure 2 , Figure 3 ,as well as Figures 5 to 8As shown, a slide rail 315 located at the bottom of a horizontal moving frame 301 and racks 316 located on the front and rear sides of the horizontal moving frame 301 are installed on the lifting frame 303. Both the slide rail 315 and racks 316 extend along the arrangement direction of the automatic loading device 3 and the hot pressing device 2. Support rollers 318, which roll and support the top of the slide rail 315, are provided at the bottom of the horizontal moving frame 301. Meanwhile, the driving device includes a drive motor 319 fixedly installed on the top of the horizontal moving frame 301. The drive motor 319 is controlled by a control device. A horizontal drive shaft 320 is mounted on the top of the horizontal moving frame 301. The horizontal drive shaft 320 extends along the conveying direction perpendicular to the loading belt conveyor 302, i.e., along the Y-axis. Vertical drive shafts 321 are mounted on the front and rear sides of the horizontal moving frame 301 via bearings. The drive motor 319 is connected to the horizontal drive shaft 320. Bevel gears 322 are fixedly installed at both ends of the horizontal drive shaft 320. Both vertical drive shafts 321 have bevel gears 323 fixedly mounted at their top ends, and transmission gears 317 fixedly mounted at their bottom ends. The bevel gears 323 at the top ends of the two vertical drive shafts 321 mesh with two bevel gears 322, and the transmission gears 317 at the bottom ends of the two vertical drive shafts 321 mesh with two racks 316. With this configuration, the drive motor 319 drives the horizontal drive shaft 320 to rotate. The horizontal drive shaft 320, through the bevel gears 322 and 323 at both ends, drives the two vertical drive shafts 321 to rotate synchronously. The transmission gears 317 at the bottom ends of the vertical drive shafts 321 roll along the racks 316, thus achieving horizontal movement of the horizontal moving frame 301 along the X-axis. During horizontal movement, the support rollers 318 move along the slide rails 315, providing support for the entire horizontal moving frame 301.

[0051] In this embodiment, the horizontal moving frame 301 is rectangular, comprising a top beam 324, a bottom beam 325, and two longitudinal beams 326, which are symmetrically arranged on both sides along the Y-axis. A drive motor 319 is mounted on top of the top beam 324, and a loading belt conveyor 302 is mounted and arranged between the two longitudinal beams 326. The portions of the two vertical drive shafts 321 near the top are rotatably mounted on the top beam 324 near both ends via bearings, and a bevel gear 323 is located at the end of the vertical drive shaft 321 that extends out of the top of the top beam 324.

[0052] Meanwhile, in this embodiment, based on Figure 10As shown, a front limit deceleration travel switch 701, a front limit deceleration travel switch 702, a rear limit deceleration travel switch 703, and a rear limit deceleration travel switch 704, all connected to a control device, are installed at the bottom of the lifting frame 303. A trigger block 719 is located at the bottom of the horizontal moving frame 301. The front limit deceleration travel switches 701 and 702 are positioned near the feed end of the hot pressing device 2, with the front limit deceleration travel switch 701 located on the side of the front limit deceleration travel switch 702 away from the hot pressing device 2. The rear limit deceleration travel switches 703 and 704 are positioned away from the feed end of the hot pressing device 2, with the rear limit deceleration travel switch 704 located on the side of the rear limit deceleration travel switch 703 away from the hot pressing device 2. When the horizontal moving frame 301 moves towards the hot pressing device 2 along the positive X-axis, the trigger block 719 first contacts the contact of the front limit deceleration travel switch 701 of the moving frame and drives the contact to rotate. After the front limit deceleration travel switch 701 is triggered, it sends a signal to the control device. The control device controls the drive motor 319 to decelerate the movement of the horizontal moving frame 301. Subsequently, the trigger block 719 contacts the contact of the front limit travel switch 702 of the moving frame and drives the contact to rotate. After the front limit travel switch 702 is triggered, it sends a signal to the control device. The control device controls the drive motor 319 to stop driving the horizontal moving frame 301 to move. At this time, it indicates that all the material loading belt conveyors 302 have entered the gap of the unit hot pressing plate 201. Subsequently, the control device controls drive motor 319 to move horizontal moving frame 301 in the negative X-axis direction, and simultaneously controls the loading belt conveyor 302 to transport plywood 100 in the positive X-axis direction at a speed equal to that of horizontal moving frame 301 moving in the reverse direction. Plywood 100 then lands on the corresponding unit hot press plate 201. During the reverse movement of horizontal moving frame 301 in the negative X-axis direction, trigger block 719 first contacts the contact of the rear limit deceleration travel switch 703 of the moving frame and causes the contact to rotate. After being triggered, the rear limit deceleration travel switch 703 sends a signal to the control device, which then controls drive motor 319 to decelerate the movement of horizontal moving frame 301. Subsequently, trigger block 719 contacts the contact of the rear limit travel switch 704 of the moving frame and causes the contact to rotate. After being triggered, the rear limit travel switch 704 sends a signal to the control device, which then controls drive motor 319 to stop moving horizontal moving frame 301, and horizontal moving frame 301 moves in the reverse direction to its designated position.

[0053] Please refer to Figure 11 . Figure 11The left side of the dashed line shows the sensor triggering status diagram when the lifting frame 303 descends to the lower limit position, and the right side of the dashed line shows the sensor triggering status diagram when the lifting frame 303 rises to the upper limit position. Specifically, frame 1 has two upper limit deceleration travel switches, 705 and 706, located near the upper limit of the lifting frame 303, with switch 706 positioned above switch 705. Frame 1 also has two lower limit deceleration travel switches, 707 and 708, located near the lower limit of the lifting frame 303, with switch 708 positioned below switch 707. The top of the lifting frame 303 has a trigger block 720, and the bottom has a trigger block 721. Each layer of the belt conveyor 302 for loading is equipped with a lifting frame deceleration proximity switch 709 and a lifting frame end-of-line proximity switch 710 facing the discharge end of the infeed conveyor 4. The lifting frame deceleration proximity switch 709 is located above the lifting frame end-of-line proximity switch 710. The lifting frame upper limit deceleration travel switch 705, lifting frame upper limit travel switch 706, lifting frame lower limit deceleration travel switch 707, lifting frame lower limit travel switch 708, lifting frame deceleration proximity switch 709, and lifting frame end-of-line proximity switch 710 are all connected to the control device.

[0054] In the initial state, the lifting frame 303 is at its lower limit position, and the feed end of the top-level loading belt conveyor 302 is aligned with the discharge end of the board feeding conveyor 4. The board feeding conveyor 4 transports plywood 100 to the top-level loading belt conveyor 302. Both the top-level loading belt conveyor 302 and the discharge end of the board feeding conveyor 4 are equipped with photoelectric switches (not shown in the attached diagram). When the plywood 100 moves onto the loading belt conveyor 302, the photoelectric switch sends a signal indicating that the plywood 100 has moved into position to the control device. The control device controls the vertical cylinder 304 to drive the lifting frame 303 upward. The deceleration proximity switches 709 on the second-to-last loading belt conveyor 302 first align with the board feeding conveyor 4. After the signal is sent to the control device, the control device controls the vertical cylinder 304 to drive the lifting frame 303 to decelerate and rise. Subsequently, the lifting frame aligns with the feeding conveyor 4 at each layer's arrival proximity switch 710. The lifting frame then sends a signal to the control device, which controls the vertical cylinder 304 to stop driving the lifting frame 303 to rise. At this point, the second-layer loading belt conveyor 302 aligns with the feeding conveyor 4, and the feeding conveyor 4 can then transport plywood 100 to the second-layer loading belt conveyor 302. This process continues until all layers of loading belt conveyors 302 are loaded with plywood 100. Subsequently, the control device controls the vertical cylinder 304 to drive the lifting frame 303 to rise until the trigger block 720 contacts the contact of the upper limit deceleration limit switch 705 of the lifting frame, causing the contact to rotate. The upper limit deceleration limit switch 705 of the lifting frame sends a signal to the control device, and the control device controls the vertical cylinder 304 to drive the lifting frame 303 to decelerate and rise. Then, the trigger block 720 contacts the contact of the upper limit limit switch 706 of the lifting frame, causing the contact to rotate. The upper limit limit switch 706 of the lifting frame sends a signal to the control device, and the control device controls the vertical cylinder 304 to stop driving the lifting frame 303 to rise. The lifting frame 303 moves to the upper limit position. At this time, the belt conveyor 302 for each layer of material loading is aligned with the gap of the unit hot press plate 201, and the plywood 100 can be transported to the hot press device 2. When all the plywood 100 on the belt conveyor 302 is transported to the hot pressing device 2, and the horizontal moving frame 301 has moved in the negative X-axis direction to the trigger block 719 and the rear limit switch 704 of the moving frame, the control device controls the lifting frame 303 to descend.When the lifting frame 303 descends to the point where the trigger block 721 contacts the contact of the lower limit deceleration travel switch 707 and causes the contact to rotate, the lower limit deceleration travel switch 707 sends a signal to the control device. The control device controls the vertical cylinder 304 to drive the lifting frame 303 to decelerate and descend. Subsequently, when the lifting frame 303 descends to the point where the trigger block 721 contacts the contact of the lower limit travel switch 708 and causes the contact to rotate, the lower limit travel switch 708 sends a signal to the control device. The control device controls the vertical cylinder 304 to stop driving the lifting frame 303 to descend. The lifting frame 303 descends to the lower limit position and returns to the point where the feed end of the top layer loading belt conveyor 302 aligns with the discharge end of the feed plate conveyor 4, returning to the above initial state, and the next cycle begins.

[0055] Furthermore, based on Figure 1 , Figure 2 , Figure 12 and Figure 13 As shown, the horizontal moving frame 301, drive motor 319, horizontal drive shaft 320, and vertical drive shaft 321 are all located on the feeding end side of the loading belt conveyor 302. In this way, when the loading belt conveyor 302 extends into the unit hot press plate 201, the horizontal moving frame 301, drive motor 319, horizontal drive shaft 320, and vertical drive shaft 321 will never enter the range of the hot press device 2, thus avoiding interference with the hot press device 2. Because the feeding belt conveyor 302 extends a long distance along the X-axis, several layers of support platforms 327 are vertically arranged on the side of the lifting frame 303 facing the hot pressing device 2 to support it. Each layer of support platform 327 corresponds to a layer of feeding belt conveyors 302, and the layers of support platforms 327 are aligned with the feed ends of the unit hot pressing plates 201. Each layer of feeding belt conveyor 302 has a support wheel 328 rolling on the corresponding support platform 327 near its bottom end near the discharge end. Thus, each layer of feeding belt conveyor 302 is supported on the support platform 327 by the support wheel 328. When the feeding belt conveyor 302 moves into the gap of the unit hot pressing plate 201, the support wheel 328 rolls from the support platform 327 to the corresponding unit hot pressing plate 201, ensuring that the discharge end of the feeding belt conveyor 302 is always supported.

[0056] Furthermore, based on Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 12 and Figure 13As shown, the feeding belt conveyor 302 is a belt conveyor with a mounting frame 329, a drive wheel axle 330, a driven wheel axle 331, and a conveyor belt 332 wound around the outside of the drive wheel axle 330 and the driven wheel axle 331. The drive wheel axle 330 and the driven wheel axle 331 are both rotatably mounted on the mounting frame 329. The drive wheel axle 330 is located on one side of the feeding end of the feeding belt conveyor 302, and the driven wheel axle 331 is located on one side of the discharging end of the feeding belt conveyor 302. The side of the mounting frame 329 near the feeding end of the feeding belt conveyor 302 is fixedly connected to the horizontal moving frame 301. The support wheel 328 is mounted on the side of the mounting frame 329 near the discharging end of the feeding belt conveyor 302.

[0057] The loading belt conveyor 302 is driven by a drive motor 319. Specifically, the loading belt conveyor 302 has an overrunning clutch 333. In each layer of the loading belt conveyor 302, a drive sprocket 334 is rotatably mounted on one end of the drive shaft 330 via a bearing and the overrunning clutch 333. In this embodiment, an end cover 352 and a bearing 351 are also provided. The end of the drive shaft 330 has a step 353, and the end of the drive sprocket 334 has an end face 354. The overrunning clutch 333 is a CKA-type one-way wedge overrunning clutch, with keyways on both its inner and outer rings. The bearing 351 is sleeved on the end of the drive shaft 330, with its inner ring abutting against the step 353, and its outer ring abutting against the end face 354 and having an interference fit with the inner wall of the drive sprocket 334. An overrunning clutch 333 is fitted onto the end of the drive shaft 330, with its inner ring abutting against the inner ring end of the bearing 351 away from the step 353. The inner ring of the overrunning clutch 333 is keyed to the drive shaft 330, and the outer ring of the overrunning clutch 333 is keyed to the inner wall of the drive sprocket 334. An end cover 352 is bolted to the end of the drive sprocket 334 away from the end face 354, and the end cover 352 abuts against the outer ring of the overrunning clutch 333. The output end of the drive motor 319 has an output shaft 335, on which a drive sprocket 336 is fixedly mounted. The horizontal moving frame 301 is provided with a driven sprocket 337 located at the bottom of all the loading belt conveyors 302. A drive chain 338 is fitted in a closed loop around the outer sides of the drive sprocket 336 and the driven sprocket 337. Of course, to ensure the direction and tension of the drive chain 338, a tensioning pulley 350 is also installed on the horizontal moving frame 301, and the drive chain 338 synchronously winds around the tensioning pulley 350. The drive chain 338 vertically passes through all the loading belt conveyors 302 and meshes with the drive sprockets 334 on all the loading belt conveyors 302. The drive motor 319 drives the output shaft 335 to rotate, which in turn drives the drive chain 338 through the drive sprocket 336. The drive chain 338 drives the drive sprockets 334 on all the loading belt conveyors 302 to rotate, thereby driving all the loading belt conveyors 302 to move. The overrunning clutch 333 ensures that the drive sprocket 334 can only drive the drive shaft 330 to rotate in one direction, while the drive sprocket 334 idles on the drive shaft 330 when rotating in the opposite direction. Specifically, in this embodiment, the drive sprocket 334 can only drive the drive wheel shaft 330 to rotate clockwise. Figure 5 and Figure 13 (as shown in the direction), so that the belt conveyor 302 for loading can only transport plywood 100 in the direction of the hot pressing device 2.

[0058] With the above configuration, drive motor 319 can synchronously drive the horizontal movement of the horizontal moving frame 301 and the movement of the loading belt conveyor 302. Specifically, in use, when all layers of the loading belt conveyor 302 are carrying plywood 100, drive motor 319 drives the horizontal moving frame 301 towards the hot pressing device 2, causing the loading belt conveyor 302 to insert into the gap of the unit hot pressing plate 201. During this process, although drive motor 319 synchronously drives drive sprocket 334 to rotate via drive chain 338, drive sprocket 334 idles on drive shaft 330, preventing the conveyor belt 332 from moving and keeping the plywood 100 stationary on the loading belt conveyor 302. When the loading belt conveyor 302 is fully inserted into the gap of the unit hot pressing plate 201, drive motor 319 rotates in the opposite direction, causing the horizontal moving frame 301 to move in the negative X-axis direction. At the same time, the drive motor 319 synchronously drives the drive sprocket 334 to rotate in the opposite direction through the drive chain 338. The drive sprocket 334 drives the drive wheel shaft 330 to rotate, so that the conveyor belt 332 conveys the plywood 100 towards the discharge end, and the plywood 100 can fall on the corresponding unit hot press plate 201 in place.

[0059] The output shaft 335 is also fixedly mounted with a second drive sprocket 339. Figure 13 In the middle, the second drive sprocket 339 is shielded behind the first drive sprocket 336, and the second driven sprocket 340 is fixedly installed on the outer side of the horizontal drive shaft 320. The second drive chain 341 is sleeved in a closed loop on the outer side of the second drive sprocket 339 and the second driven sprocket 340 to realize the transmission connection between the first drive motor 319 and the horizontal drive shaft 320.

[0060] Furthermore, based on Figure 3 , Figure 14 , Figure 15 and Figure 16As shown, the loading belt conveyor 302 also has an overrunning clutch 343. In each layer of the loading belt conveyor 302, the side of the drive shaft 330 away from the drive sprocket 334 is equipped with a drive gear 344 via a bearing and the overrunning clutch 343. Specifically, in this embodiment, an end cover 356 and a bearing 355 are also provided. The end of the drive shaft 330 has a step 357, and the end of the drive gear 344 has an end face 358. The overrunning clutch 343 is a CKA-type one-way wedge overrunning clutch, with keyways on both its inner and outer rings. The bearing 355 is sleeved on the end of the drive shaft 330, with its inner ring abutting against the step 357, and its outer ring abutting against the end face 358 and having an interference fit with the inner wall of the drive gear 344. Overrunning clutch 343 is fitted onto the end of drive shaft 330, with its inner ring abutting against the inner ring end of bearing 355 away from step 357. The inner ring of overrunning clutch 343 is keyed to drive shaft 330, and its outer ring is keyed to the inner wall of drive gear 344. End cap 356 is bolted to the end of drive gear 344 away from end face 358, and abuts against the outer ring of overrunning clutch 343. The feed plate conveying device 4 includes a wide belt conveyor 401 and a swing engagement mechanism 402 mounted on the side of the wide belt conveyor 401, with the swing engagement mechanism 402 positioned opposite to drive gear 344. The wide belt conveyor 401 includes a mounting frame 403, a drive motor 404, a drive shaft 405, a driven shaft 406, and a conveyor belt 407 wound around the outside of the drive shaft 405 and the driven shaft 406. The drive shaft 405 is located at the discharge end of the wide belt conveyor 401 and faces the automatic loading device 3. The drive motor 404 and the drive shaft 405 are connected by chain drive. The drive motor 404 drives the drive shaft 405 to rotate, thereby moving the conveyor belt 407 to transport the plywood 100. The oscillating engagement mechanism 402 includes an oscillating cylinder 408, an oscillating frame 409, an oscillating gear 410, and a fixed gear 411. The oscillating frame 409 is rotatably sleeved on the outside of the end of the drive shaft 405 via bearings, specifically located at the end of the drive shaft 405 facing the negative Y-axis direction. The base of the swing cylinder 408 is hinged to the mounting bracket 403, and the output end of the swing cylinder 408 is hinged to the swing frame 409. A mounting shaft 412 is fixedly connected to the swing frame 409. The swing gear 410 is rotatably mounted on the mounting shaft 412 via bearings. A fixed gear 411 is fixedly sleeved on the outside of the drive shaft 405, and the swing gear 410 meshes with the fixed gear 411. The swing cylinder 408 drives the swing frame 409 to rotate along the drive shaft 405, causing the swing gear 410 to mesh with or disengage from the drive gear 344 in the corresponding layer of the belt conveyor 302. Both the drive motor 404 and the swing cylinder 408 are controlled by a control device.

[0061] The overrunning clutch 343 ensures that the drive gear 344 can only drive the drive shaft 330 to rotate in one direction, while it idles in the opposite direction. Specifically, in this embodiment, the drive gear 344 can only drive the drive shaft 330 to rotate clockwise, so that the conveyor belt 332 can transport the plywood 100 towards the hot pressing device 2. In actual use, when the feed end of a certain layer of the loading belt conveyor 302 is aligned with the discharge end of the wide belt conveyor 401, the control device extends the output end of the swing cylinder 408 to rotate the swing frame 409, and the swing gear 410 on the swing frame 409 meshes with the drive gear 344 in the corresponding layer of the loading belt conveyor 302. At this time, the power from the second drive motor 404 drives the first drive shaft 330 to rotate clockwise through the second drive shaft 405, the fixed gear 411, the swing gear 410 and the drive gear 344. At this time, the second conveyor belt 407 on the wide belt conveyor 401 moves synchronously and in the same direction with the first conveyor belt 332 on the corresponding loading belt conveyor 302, transporting the plywood 100 from the wide belt conveyor 401 to the loading belt conveyor 302. Meanwhile, due to the overrunning clutch 333, although the drive shaft 330 is rotating, the drive sprocket 334 can idle on the drive shaft 330, so that the drive sprocket 334 will not rotate during this process, and the power will not be transmitted to the drive chain 338. This means that the drive motor 404 can only drive the corresponding layer of the loading belt conveyor 302 to move through the swing engagement mechanism 402, and the other loading belt conveyors 302 will not move, so as not to affect the loading belt conveyor 302 that is already loaded with plywood 100 on top to bear the plywood 100.

[0062] Furthermore, based on Figure 2 and Figure 17As shown, a fall prevention mechanism 345 is provided on the top of the lifting frame 303 in the frame 1. The fall prevention mechanism 345 includes a rotating cylinder 346 and a rotating hook 347. The rotating hook 347 is rotatably mounted on the top of the frame 1 via a bearing. The base of the rotating cylinder 346 is hinged to the frame 1, and the output end of the rotating cylinder 346 is hinged to the rotating hook 347. A hook part 348 is provided on the top of the lifting frame 303. The rotating cylinder 346 is controlled by a control device. When the lifting frame 303 rises to the gap between the corresponding unit hot press plates 201 of the loading belt conveyor 302, that is, at the upper limit position, the rotating cylinder 346 drives the rotating hook 347 to hook the bottom side of the hook part 348 to prevent the lifting frame 303 from falling due to malfunction. Once all the plywood 100 has been transferred to the hot pressing device 2 via the horizontal moving frame 301 and the horizontal moving frame 301 has returned to its position, the rotating cylinder 346 drives the rotating hook 347 to disengage from the bottom side of the hook part 348, and the lifting frame 303 can then descend normally.

[0063] Furthermore, based on Figure 1 , Figure 18 , Figure 19 and Figure 20 As shown, the frame 1 is also equipped with a plate storage device 5 located on the discharge end side of the hot pressing device 2. The plate storage device 5 has several layers of unit trays 501, and the feeding ends of the several layers of unit trays 501 are aligned with the discharge ends of the several layers of unit hot pressing plates 201 layer by layer. In each layer of the loading belt conveyor 302, the end of the mounting frame 329 facing the hot pressing device 2 is fixedly connected with a pushing member 349. After the plywood 100 is hot-pressed in the hot pressing device 2, the driving device drives the horizontal moving frame 301 to slide along the frame 1, so that the loading belt conveyor 302 is inserted into the gap between the corresponding two layers of unit hot pressing plates 201. The pushing member 349 pushes the plywood 100 on the unit hot pressing plate 201 and moves the plywood 100 onto the unit tray 501. In this way, compared with the prior art, such as the technical solution disclosed in the background art, the transfer of plywood 100 from the hot pressing device 2 to the board discharge and storage device 5 can be realized without setting up an additional automatic moving device for board clamping, which further simplifies the structure of the device.

[0064] The board unloading and storage device 5 also includes a second lifting frame 502 and a second vertical cylinder 503. The second lifting frame 502 is vertically slidably mounted on the frame 1 via the second vertical cylinder 503, and the unit support plate 501 is mounted on the second lifting frame 502. Each unit support plate 501 includes a left support plate 504 and a right support plate 505 located on the front and rear sides of the second lifting frame 502, with the left support plate 504 and the right support plate 505 spaced apart from each other. In this way, when the plywood 100 after hot pressing enters the board unloading and storage device 5, its two sides along the Y-axis direction overlap the left support plate 504 and the right support plate 505 respectively, with no support at the bottom of the middle part. A board discharge conveyor 6 is also provided at the bottom of the board discharge and storage device 5. The board discharge conveyor 6 is located at the bottom of the gap between the left support plate 504 and the right support plate 505. The discharge end of the board discharge conveyor 6 extends out of the board discharge and storage device 5 from the side of the board discharge and storage device 5 away from the hot pressing device 2. Both the vertical cylinder 503 and the board discharge conveyor 6 are controlled by a control device. In this embodiment, the board discharge conveyor 6 is also a belt conveyor. When the vertical cylinder 503 drives the lifting frame 502 to descend, the middle part of the plywood 100 contacts the conveyor belt on the board discharge conveyor 6 and is transferred to the discharge end by the board discharge conveyor 6. During the continuous descent of the lifting frame 502, the plywood 100 on each layer of unit support plate 501 contacts and is transferred to the conveyor belt on the board discharge conveyor 6 layer by layer. Before the previous layer of plywood 100 contacts the conveyor belt, the next layer of plywood 100 has already been transferred away by the board discharge conveyor 6. In this way, all layers of plywood 100 on the board unloading and storage device 5 can be transferred from bottom to top to the next work station.

[0065] In this embodiment, based on Figure 18 and Figure 19 As shown, the lifting frame 2 502 is a cubic frame with rectangular frames on both sides along the Y-axis. Each rectangular frame has a longitudinal beam 6 510, a longitudinal beam 7 511, a top beam 4 512, and a bottom beam 4 513. The two rectangular frames are connected by the top beam 6 518 at the top and the bottom beam 517 at the bottom to form a cubic frame structure. The left support plate 504 and the right support plate 505 are respectively mounted on the two rectangular frames along the height direction. The frame 1 has two longitudinal beams 8 514 located on both sides of the lifting frame 2 502 along the Y-axis. The tops of the two longitudinal beams 8 514 are fixedly connected by the top beam 5 516. There are two vertical cylinders 2 503, located on both sides of the lifting frame 2 502 along the Y-axis. The top of the vertical cylinder 2 503 is hinged to the longitudinal beam 8 514, and the bottom is hinged to the bottom beam 4 513. Meanwhile, each side of the rectangular frame of the lifting frame 2 502 is also equipped with four lifting rollers 2 515. The four lifting rollers 2 515 are rolled and clamped on both sides of the corresponding longitudinal beam 8 514 in pairs, and move up and down with the lifting frame 2 502 to ensure the stability of the lifting frame 2 502.

[0066] Meanwhile, in this embodiment, based on Figure 21As shown, in the hot pressing device 2, two sets of hot pressing positioning photoelectric switches 711 are arranged opposite each other between any two adjacent unit hot pressing plates 201. The two sets of hot pressing positioning photoelectric switches 711 are located on both sides of the width direction of the unit hot pressing plate 201, that is, the Y-axis direction. When the plywood 100 is placed on the unit hot pressing plate 201, the two edges of the plywood 100 along the Y-axis direction respectively block the path of the two sets of hot pressing positioning photoelectric switches 711, which is used to detect whether the plywood 100 is in position. Moreover, the two sets of hot pressing positioning photoelectric switches 711 on each unit hot pressing plate 201 detect the edge position of the plywood 100 along the Y-axis direction. If the path is not blocked, the plywood 100 may be tilted. Similarly, based on Figure 19 and Figure 22 As shown, two sets of photoelectric switches 712 are also installed between any two adjacent unit trays 501 to detect whether the plywood 100 has moved into place. The two sets of photoelectric switches 712 are located on the left tray 504 and the right tray 505, respectively. After the plywood 100 is placed on the unit tray 501, the two sets of photoelectric switches 712 detect the edge position of the plywood 100 along the Y-axis. If there is no obstruction in the passage, the plywood 100 may be tilted.

[0067] In addition, in this embodiment, please refer to Figure 23 . Figure 23 The left side of the dashed line shows the sensor triggering status diagram when the lifting frame 2 502 descends to the lower limit position, and the right side of the dashed line shows the sensor triggering status diagram when the lifting frame 2 502 rises to the upper limit position. At the board storage device 5, the frame 1 has two upper limit deceleration travel switches, 713 and 714, located near the upper limit of the lifting frame 2 502. The upper limit deceleration travel switch 713 is located above the upper limit deceleration travel switch 713. The frame 1 also has two lower limit deceleration travel switches, 715 and 716, located near the lower limit of the lifting frame 2 502. The lower limit travel switch 716 is located below the lower limit deceleration travel switch 715. The top of the lifting frame 2 502 has a trigger block 722, and the bottom has a trigger block 723. Meanwhile, each unit tray 501 is equipped with a second deceleration proximity switch 717 and a second positioning proximity switch 718 for each layer of the lifting frame. Both the second deceleration proximity switch 717 and the second positioning proximity switch 718 are positioned towards the gap between the left tray 504 and the right tray 505 in the corresponding unit tray 501. The second deceleration proximity switch 717 and the second positioning proximity switch 718 can be installed on either the left tray 504 or the right tray 505.

[0068] In the initial state, the lifting frame 502 is at its upper limit position, and the feeding end of each unit pallet 501 is aligned with the discharging end of the corresponding unit hot press plate 201. At this time, plywood 100 can be conveyed from the hot press device 2 to the plate storage device 5. After all unit pallets 501 are loaded with plywood 100, the retraction photoelectric switch 712 sends a signal to the control device that the plywood 100 has arrived, and the control device controls the vertical cylinder 503 to drive the lifting frame 502 to descend. During the descent, the passage of the lifting frame deceleration proximity switch 717 on the bottom unit pallet 501 is first blocked by the plate delivery conveyor 6. At this time, the lifting frame deceleration proximity switch 717 sends a signal to the control device, which then controls the vertical cylinder 503 to drive the lifting frame 502 to decelerate and descend. Subsequently, the lifting frame positioning proximity switch 718 on the bottom unit pallet 501 aligns with the plate delivery conveyor 6, and sends a signal to the control device. The control device then controls the vertical cylinder 503 to stop driving the lifting frame 502 to descend. At this point, the upper surface of the bottom unit pallet 501 is slightly lower than the conveying surface of the plate delivery conveyor 6, and the plywood 100 is emptied by the vertical plate conveyor frame 1. The plate delivery conveyor 6 can then transport the plywood 100 of this layer to the next station. The plate delivery conveyor 6 is also equipped with a photoelectric switch (not shown in the attached diagram). After the plywood 100 moves away, the photoelectric switch sends a signal to the control device. The control device then uses the vertical cylinder 503 to lower the lifting frame 502, aligning the second-to-last unit tray 501 with the delivery conveyor 6. This process continues until all the plywood 100 on the unit trays 501 have been transferred by the delivery conveyor 6. Simultaneously, as the top unit tray 501 descends and aligns with the delivery conveyor 6, the lifting frame 502 descends until the trigger block 723 contacts the contact of the lower limit deceleration travel switch 715, causing the contact to rotate. The lower limit deceleration travel switch 715 sends a signal to the control device, which then controls the vertical cylinder 503 to decelerate and descend the lifting frame 502. Subsequently, trigger block 723 contacts the contact of the lower limit travel switch 716 of the lifting frame and causes the contact to rotate. The lower limit travel switch 716 of the lifting frame sends a signal to the control device, and the control device controls the vertical cylinder 503 to stop driving the lifting frame 502 to descend. The lifting frame 502 moves to the lower limit position, and the top unit tray 501 aligns with the discharge conveyor 6. After the plywood 100 on the top unit tray 501 is transferred by the discharge conveyor 6, the control device controls the lifting frame 502 to rise.When the lifting frame 2 502 rises to the point where the trigger block 4 722 contacts the contact of the lifting frame upper limit deceleration travel switch 2 713 and causes the contact to rotate, the lifting frame upper limit deceleration travel switch 2 713 sends a signal to the control device. The control device controls the vertical cylinder 2 503 to drive the lifting frame 2 502 to decelerate and rise. Then, when the lifting frame 2 502 rises to the point where the trigger block 4 722 contacts the contact of the lifting frame upper limit travel switch 2 714 and causes the contact to rotate, the lifting frame upper limit travel switch 2 714 sends a signal to the control device. The control device controls the vertical cylinder 2 503 to stop driving the lifting frame 2 502 to rise. The lifting frame 2 502 rises to the lower limit position and returns to the alignment of the feeding end of each layer unit tray 501 with the discharge end of the corresponding layer unit hot press plate 201, returning to the above initial state, and starting the next cycle.

[0069] Furthermore, based on Figure 18 and Figure 24 As shown, a fall prevention mechanism 506 is provided on the top of the lifting frame 502 in the frame 1. The fall prevention mechanism 506 includes a rotating cylinder 507 and a rotating hook 508. The rotating hook 508 is rotatably mounted on the top of the frame 1 via a bearing. The base of the rotating cylinder 507 is hinged to the frame 1, and the output end of the rotating cylinder 507 is hinged to the rotating hook 508. A hook part 509 is provided on the top of the lifting frame 502. The rotating cylinder 507 is controlled by a control device. When the lifting frame 502 rises to the upper limit position when the unit support plate 501 is aligned with the corresponding unit hot press plate 201, the rotating cylinder 507 drives the rotating hook 508 to hook the bottom side of the hook part 509, thus preventing the lifting frame 502 from falling. After all the plywood 100 is transferred from the hot pressing device 2 to the unit tray 501, the rotating cylinder 2 507 drives the rotating hook 2 508 to disengage from the bottom side of the hook part 2 509, and the lifting frame 2 502 can then descend normally.

Claims

1. A high-rise multi-panel laminating press, comprising a frame and a control device, wherein the frame is equipped with a hot pressing device, and a plurality of unit hot pressing plates are arranged at intervals along the height direction of the hot pressing device, and the hot pressing device is controlled by the control device, characterized in that: The frame is also equipped with an automatic feeding device located on the feeding end side of the hot pressing device; The automatic loading device has a horizontal moving frame and a driving device. The horizontal moving frame is slidably mounted on the frame through the driving device. Several layers of loading belt conveyors for carrying plywood are arranged at intervals along the height direction of the horizontal moving frame. The gaps between the discharge ends of the several layers of loading belt conveyors and the adjacent unit hot press plates are aligned layer by layer. The driving device and the several layers of loading belt conveyors are all controlled by the control device. In use, the drive unit drives the horizontal moving frame to slide along the frame, so that the loading belt conveyor loaded with plywood is inserted into the gap between the corresponding two layers of the unit hot press plates; then, the drive unit drives the horizontal moving frame to slide in the opposite direction along the frame, so that the loading belt conveyor moves out of the gap between the unit hot press plates; at the same time as the loading belt conveyor moves out of the gap between the unit hot press plates, the loading belt conveyor moves the plywood towards its discharge end, and the speed at which the plywood is moved is the same as the speed at which the loading belt conveyor moves out of the gap between the corresponding two layers of the unit hot press plates, so that the plywood falls on the corresponding unit hot press plate in place.

2. The high-rise multi-panel laminating press as described in claim 1, characterized in that: It also includes a feeding conveyor located on one side of the feeding end of the automatic feeding device. The automatic feeding device also includes a lifting frame and a vertical cylinder. The lifting frame is vertically slidably mounted on the frame via the vertical cylinder. The horizontal moving frame is horizontally slidably mounted on the lifting frame via the drive device. The lifting frame raises and lowers to align the feeding end of the feeding belt conveyor layer by layer to the discharging end of the feeding conveyor. Both the feeding conveyor and the vertical cylinder are controlled by the control device.

3. The high-rise multi-panel laminating press as described in claim 2, characterized in that: The lifting frame is equipped with a slide rail located at the bottom of the horizontal moving frame and racks located on the front and rear sides of the horizontal moving frame. The slide rail and the racks extend along the arrangement direction of the automatic loading device and the hot pressing device. The bottom of the horizontal moving frame is provided with a support roller that rolls and supports the top of the slide rail. The driving device includes a drive motor fixedly installed on the top of the horizontal moving frame, which is controlled by the control device. A horizontal drive shaft is rotatably mounted on the top of the horizontal moving frame, extending along the conveying direction perpendicular to the conveying direction of the loading belt conveyor. Vertical drive shafts are mounted on both the front and rear sides of the horizontal moving frame via bearings. The drive motor is connected to the horizontal drive shaft. Both ends of the horizontal drive shaft are fixedly mounted with bevel gears. The top ends of the two vertical drive shafts are fixedly mounted with bevel gears, and the bottom ends of the two vertical drive shafts are fixedly mounted with transmission gears. The bevel gears at the top ends of the two vertical drive shafts mesh with the two bevel gears, and the transmission gears at the bottom ends of the two vertical drive shafts mesh with the two racks.

4. The high-rise multi-panel laminating press as described in claim 3, characterized in that: The horizontal moving frame, the first drive motor, the horizontal drive shaft, and the vertical drive shaft are all located on the feeding end side of the feeding belt conveyor. The lifting frame has several layers of support platforms arranged vertically on the side facing the hot pressing device. The several layers of support platforms correspond to the several layers of the feeding belt conveyor layer by layer, and the several layers of support platforms are aligned with the feeding ends of the several layers of the unit hot pressing plates layer by layer. Each layer of the feeding belt conveyor has a support wheel that rolls and supports the corresponding support platform at its bottom near the discharge end.

5. The high-rise multi-panel laminating press as described in claim 4, characterized in that: The feeding belt conveyor has a mounting frame, a drive wheel axle, a driven wheel axle, and a conveyor belt wound around the outside of the drive wheel axle and the driven wheel axle. The drive wheel axle and the driven wheel axle are both rotatably mounted on the mounting frame. The drive wheel axle is located on one side of the feeding end of the feeding belt conveyor, and the driven wheel axle is located on one side of the discharging end of the feeding belt conveyor. The side of the mounting frame near the feeding end of the feeding belt conveyor is fixedly connected to the horizontal moving frame. The support wheel is mounted on the side of the mounting frame near the discharging end of the feeding belt conveyor. The loading belt conveyor has an overrunning clutch; in each layer of the loading belt conveyor, one end of the drive wheel shaft is rotatably mounted with a drive sprocket via a bearing and the overrunning clutch, the output end of the drive motor has an output shaft, the output shaft is fixedly mounted with the drive sprocket, the horizontal moving frame is provided with a driven sprocket located at the bottom of all the loading belt conveyors, the outer sides of the drive sprocket and the driven sprocket are fitted with a drive chain, the drive chain vertically passes through all the loading belt conveyors and meshes with the drive sprockets on all the loading belt conveyors; The output shaft is also fixedly mounted with a second drive sprocket, and a second driven sprocket is fixedly mounted on the outer side of the horizontal drive shaft. A second drive chain is sleeved in a closed loop on the outer sides of the second drive sprocket and the second driven sprocket.

6. The high-rise multi-panel laminating press as described in claim 5, characterized in that: The loading belt conveyor also has an overrunning clutch II. In each layer of the loading belt conveyor, the side of the drive wheel shaft away from the drive sprocket is equipped with a drive gear through the bearing and the overrunning clutch II. The feeding plate conveying device includes a wide belt conveyor and a swing engagement mechanism installed on the side of the wide belt conveyor. The swing engagement mechanism is arranged opposite to the drive gear. The wide belt conveyor has a second mounting frame, a second drive motor, a second drive wheel shaft, a second driven wheel shaft, and a second conveyor belt wound around the outside of the second drive wheel shaft and the second driven wheel shaft. The second drive wheel shaft is located at the discharge end of the wide belt conveyor and is arranged towards the automatic loading device. The second drive motor and the second drive wheel shaft are connected by chain drive. The oscillating engagement mechanism includes an oscillating cylinder, an oscillating frame, an oscillating gear, and a fixed gear. The oscillating frame is rotatably mounted on the outer side of the end of the second drive wheel shaft via bearings. The base of the oscillating cylinder is hinged to the second mounting frame, and the output end of the oscillating cylinder is hinged to the second oscillating frame. A mounting shaft is fixedly connected to the second oscillating frame. The oscillating gear is rotatably mounted on the mounting shaft via bearings. The fixed gear is fixedly mounted on the outer side of the second drive wheel shaft, and the oscillating gear meshes with the fixed gear. The oscillating cylinder drives the oscillating frame to rotate along the second drive wheel shaft, causing the oscillating gear to mesh with or disengage from the drive gear in the corresponding layer of the loading belt conveyor. Both the drive motor and the swing cylinder are controlled by the control device.

7. The high-rise multi-panel laminating press as described in claim 2, characterized in that: The frame is provided with a fall protection mechanism at the top of the lifting frame. The fall protection mechanism includes a rotating cylinder and a rotating hook. The rotating hook is rotatably mounted on the top of the frame via a bearing. The base of the rotating cylinder is hinged to the frame. The output end of the rotating cylinder is hinged to the rotating hook. The top of the lifting frame is provided with a hook section. The rotating cylinder is controlled by the control device. When the lifting frame rises to the point where the loading belt conveyor aligns with the gap between the corresponding unit hot press plates, the rotating cylinder drives the rotating hook to hook the bottom side of the hook part.

8. The high-rise multi-panel laminating press as described in claim 5 or 6, characterized in that: The frame is also provided with a plate storage device located on one side of the discharge end of the hot pressing device. The plate storage device has several layers of unit trays, and the feeding ends of the several layers of unit trays are aligned with the discharge ends of the several layers of unit hot pressing plates layer by layer. In each layer of the loading belt conveyor, a pushing member is fixedly connected to one end of the mounting frame facing the hot pressing device; after the plywood is hot-pressed in the hot pressing device, the driving device drives the horizontal moving frame to slide along the frame, so that the loading belt conveyor is inserted into the gap between the corresponding two layers of unit hot pressing plates, and the pushing member pushes the plywood on the unit hot pressing plate and moves the plywood to the unit support plate.

9. The high-rise multi-panel laminating press as described in claim 8, characterized in that: The plate feeding and storage device also includes a second lifting frame and a second vertical cylinder. The second lifting frame is vertically slidably mounted on the frame via the second vertical cylinder. The unit support plate is mounted on the second lifting frame. Each layer of the unit support plate includes a left support plate and a right support plate disposed on the front and rear sides of the second lifting frame. The left support plate and the right support plate are spaced apart from each other. The bottom of the plate discharge and storage device is also equipped with a plate discharge conveyor, which is located at the bottom of the gap between the left support plate and the right support plate. The discharge end of the plate discharge conveyor extends from the side of the plate discharge and storage device away from the hot pressing device. The vertical cylinder and the plate discharge conveyor are both controlled by the control device.

10. The high-rise multi-panel laminating press as described in claim 9, characterized in that: The frame is equipped with a fall protection mechanism 2 at the top of the lifting frame 2. The fall protection mechanism 2 includes a rotating cylinder 2 and a rotating hook 2. The rotating hook 2 is rotatably mounted on the top of the frame via a bearing. The base of the rotating cylinder 2 is hinged to the frame. The output end of the rotating cylinder 2 is hinged to the rotating hook 2. The top of the lifting frame 2 is equipped with a hook part 2. The rotating cylinder 2 is controlled by the control device. When the lifting frame 2 rises to the point where the unit support plate is aligned with the corresponding unit hot press plate, the rotating cylinder 2 drives the rotating hook 2 to hook the bottom side of the hook part 2.

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