A feeding device for the production of double-sided decorative panels

Abstract

This application relates to a feeding device for producing double-sided embossed decorative panels, belonging to the technical field of board processing. It includes: a laying platform suitable for laying backing paper, substrate, and facing paper; several guide rails arranged along the length of the laying platform, one end of each guide rail located below the platform and the other end extending towards a hot-pressing device; a movable frame corresponding to the guide rails and slidably mounted on them along their length, the movable frame having a support plate arranged along the length of the laying platform; a clearance groove on the laying platform for the support plate to pass through, the clearance groove communicating with the output end of the laying platform; and an upper electrostatic generator and a lower electrostatic generator at the output end of the laying platform, the upper electrostatic generator located on the upper side of the platform and the lower electrostatic generator located on the lower side. This application can reduce the possibility of relative positional shifts between the board and paper materials during transportation, thereby improving the pressing accuracy of manually operated double-sided synchronous embossed decorative panels.

Description

Technical Field

[0001] This application relates to the field of sheet metal processing, and in particular to a feeding device for the production of double-sided decorative panels. Background Technology

[0002] Double-sided decorative panels, a building material, have several names in the industry, the most common being melamine board and melamine-faced board. The original name for double-sided decorative panels was melamine board, its full name being melamine-impregnated paper-faced engineered wood panel. It is made by impregnating paper with different colors or textures in melamine resin adhesive, then drying it to a certain degree of curing, and finally laying it on the surface of a substrate such as particleboard, moisture-resistant board, medium-density fiberboard, plywood, blockboard, or other hard fiberboard, and then hot-pressing it into a decorative panel.

[0003] Before hot pressing, the substrate, its backing paper, and its facing paper need to be laid out on a laying table. The backing paper is laid on the bottom surface of the substrate, and the facing paper is laid on the top surface of the substrate, ensuring that the patterns on the backing paper and facing paper are consistent. After the laying is completed, it is transported to the hot pressing device for hot pressing. In the existing technology, the laid substrate is transported to the hot pressing device by a belt conveyor. During the transportation process, the relative positions of the substrate, backing paper, and facing paper will shift to a certain extent, affecting the pressing accuracy of the double-sided decorative panel after hot pressing. Summary of the Invention

[0004] In order to reduce the possibility of relative displacement between the substrate, backing paper, and face paper during transportation, and thereby improve the pressing accuracy of double-sided decorative panels, this application provides a feeding device for the production of double-sided decorative panels.

[0005] This application provides a feeding device for the production of double-sided decorative panels, which adopts the following technical solution:

[0006] A feeding device for producing double-sided decorative panels includes:

[0007] The laying platform is suitable for laying the base paper, substrate, and face paper;

[0008] Several guide rails are arranged along the length of the paving platform, with one end of the guide rail located below the paving platform and the other end extending toward the hot pressing device.

[0009] A movable frame is provided on the guide rail corresponding to the guide rail and slidingly mounted on the guide rail along the length direction of the guide rail. The movable frame is provided with a tray, which is arranged along the length direction of the paving platform.

[0010] The paving platform is provided with a clearance groove for the pallet to pass through, and the clearance groove is connected to the output end of the paving platform;

[0011] The output end of the paving platform is equipped with an upper electrostatic generator and a lower electrostatic generator, with the upper electrostatic generator located on the upper side of the paving platform and the lower electrostatic generator located on the lower side of the paving platform.

[0012] By adopting the above technical solution, after the laying of the base paper, substrate, and face paper is completed on the laying platform, the upper and lower electrostatic generators are started, simultaneously driving the moving frame to move along the guide rail toward the hot pressing device. The movement of the moving frame drives the pallet to move. Since the height of the pallet is slightly higher than the height of the laying platform, the movement of the pallet drives the base paper, substrate, and face paper on the laying platform to move toward the hot pressing device. During the movement, the two ends of the face paper pass through the nozzle of the upper electrostatic generator one after the other, and the two ends of the base paper pass through the nozzle of the lower electrostatic generator one after the other. After the face paper and base paper are charged with static electricity, they can be attracted to the substrate, reducing the possibility of the relative position of the substrate, base paper, and face paper shifting due to the airflow passing through the contact gap between the substrate and the face paper and base paper during transportation. This is beneficial to improving the production efficiency of double-sided decorative panels.

[0013] Optionally, the bottom nozzle of the upper electrostatic generator is inclined, and the inclined upper end of the upper electrostatic generator is located close to the hot pressing device.

[0014] By adopting the above technical solution, the face paper is more easily adsorbed onto the substrate due to its own gravity, while the back paper needs to overcome its own downward gravity when adsorbing onto the substrate. The back paper requires a greater electrostatic attraction than the face paper. When the upper electrostatic generator is activated, on the one hand, the face paper can be charged with static electricity when passing through the bottom nozzle of the upper electrostatic generator, and on the other hand, it can also take care of the edge of the back paper near the hot pressing device, so that the back paper in this part is charged with static electricity, thereby increasing the electrostatic adsorption effect of the edge of the back paper and further reducing the possibility of separation and displacement of the back paper from the substrate.

[0015] Optionally, an external air blowing pipe is provided on the side of the paving platform near the hot pressing device, and the air blowing pipe is provided with several air blowing nozzles, with the output end of the air blowing nozzles facing upwards.

[0016] By adopting the above technical solution, compressed air is introduced into the outward air blowing pipe during pallet transportation, causing the air nozzle to blow air upward, which can support the bottom paper on the pallet, making the bottom paper adhere tightly to the substrate, reducing the possibility of the bottom paper sagging on both sides of the pallet during transportation, which may cause the bottom paper to deform or break.

[0017] Optionally, the paving platform is provided with a plurality of internal air blowing pipes on its lower side, and the upper end of the internal air blowing pipes is provided with a plurality of air blowing ports, and the paving platform is provided with ventilation holes corresponding to the air blowing ports.

[0018] By adopting the above technical solution, after the laying of the base paper, substrate and face paper is completed on the laying platform, compressed air is introduced into the internal air blowing pipe. An upward airflow is generated at the air vent to support the base paper, reducing the possibility of the base paper coming into contact with the laying platform during the movement of the pallet, thereby reducing the possibility of wear and scratches on the relative surfaces of the base paper and the laying platform.

[0019] Optionally, the pallet is provided with a pressing mechanism for pressing the base paper, substrate and face paper at one end near the hot pressing device. The pressing mechanism includes a drive arm and a pressing wheel. The drive arm is rotatably connected to the end of the pallet near the hot pressing device. The pressing wheel is located on the drive arm. The pallet is provided with a drive component for driving the drive arm to rotate.

[0020] By adopting the above technical solution, the driving component drives the driving arm to rotate, and the rotation of the driving arm drives the pressure roller to rotate around the rotation center of the driving arm, thereby realizing the adjustment of the distance between the pressure roller and the top surface of the pallet, and thus realizing the purpose of the pressure roller pressing against or separating from the face paper. The pressure roller presses the bottom paper, substrate and face paper near the hot pressing device against the pallet, reducing the occurrence of edge curling of the face paper under the influence of airflow during transportation, and further ensuring the stability of the relative position of the bottom paper, substrate and face paper during transportation.

[0021] Optionally, it also includes a drive mechanism for driving the movable frame to move along the length of the guide rail. The drive mechanism includes a drive belt and a driving pulley and a driven pulley located at both ends of the drive belt. The movable frame is provided with a connecting block, which is connected to the drive belt. The drive belt is arranged along the length of the guide rail. The drive mechanism also includes a drive assembly for driving the driving pulley to rotate.

[0022] By adopting the above technical solution, when the drive component is started, it drives the active pulley to rotate. The rotation of the active pulley drives the drive belt to rotate. The rotation of the drive belt can drive the connecting block to move along the length of the guide rail, thereby achieving the purpose of driving the moving frame to move along the length of the guide rail. The transmission structure is simple and easy to operate.

[0023] Optionally, the paving platform is provided with a crossbeam frame spanning its width direction. The crossbeam frame is provided with a centering gear and two centering racks meshing with the centering gear. The centering gear is rotatably connected to the crossbeam frame and is located directly above the center of the paving platform width. The tooth surfaces of the two centering racks are arranged opposite each other. The two centering racks are slidably arranged on the crossbeam frame along its length direction. The opposite ends of the two centering racks are respectively connected to laser emitters. The emitting ends of the laser emitters are arranged facing the platform surface of the paving platform. The crossbeam frame is provided with an adjustment mechanism for driving the centering gear to rotate.

[0024] By adopting the above technical solution, the laser emitter can project laser onto the paved surface. When the adjustment mechanism drives the centering gear to rotate, it drives the two centering racks to slide synchronously along the length of the crossbeam. The movement of the centering racks drives the laser emitter to move, which can synchronously adjust the two laser emitters and thus adjust the distance between the lasers projected by the two laser emitters to adapt to the production needs of double-sided decorative panels of different sizes and specifications, thereby improving its adaptability.

[0025] Optionally, the crossbeam frame has support legs at both ends, and a gear box is provided on the support legs. The adjustment mechanism includes a first bevel gear and a second bevel gear rotatably disposed in the gear box. The first bevel gear meshes with the second bevel gear. A drive shaft is rotatably connected to the gear box. The drive shaft is arranged in a vertical direction. The bottom end of the drive shaft is coaxially fixed with the first bevel gear, and a drive gear is coaxially fixed at the top end. The drive gear is rotatably disposed on the crossbeam frame. The centering gear is connected to the drive gear through a synchronous belt. The synchronous belt is located on the upper side of the centering rack. An adjustment shaft is coaxially fixed to the second bevel gear. The adjustment shaft is rotatably connected to the gear box. An adjustment handwheel is provided at the end of the adjustment shaft away from the second bevel gear.

[0026] By adopting the above technical solution, when the size and specifications of the double-sided decorative panel need to be adjusted, the adjustment handwheel is turned, which drives the adjustment shaft to rotate. The rotation of the adjustment shaft drives the second bevel gear to rotate, which in turn drives the first bevel gear to rotate. The rotation of the first bevel gear drives the transmission shaft to rotate, which in turn drives the transmission gear to rotate. The rotation of the transmission gear drives the centering gear to rotate through the synchronous belt, thereby achieving the purpose of manually driving the centering gear to rotate.

[0027] Optionally, the adjusting handwheel has a sliding post at one end near the second bevel gear, and the adjusting shaft has a communicating hole at one end near the adjusting handwheel for inserting the sliding post. The sliding post has a limiting head at the end away from the adjusting handwheel to prevent it from disengaging from the communicating hole. The limiting head has a non-circular cross-section. The adjusting shaft has a sliding cavity adapted to the limiting head, allowing the limiting head to slide axially along the adjusting shaft within the sliding cavity. The limiting head has a trigger rod at the end away from the adjusting handwheel. The second bevel gear and the adjusting shaft have through holes for the trigger rod to pass through. The inner wall of the box is provided with a guide post, on which a third bevel gear for limiting the rotation of the second bevel gear is slidably mounted. A compression spring is sleeved on the guide post, with one end of the compression spring connected to the gear box and the other end connected to the third bevel gear. A guide sleeve is provided at the end of the third bevel gear away from the compression spring, and a closed guide slope is provided at the end of the guide sleeve away from the third bevel gear. The closed guide slope is positioned towards the trigger rod. When the trigger rod moves towards the guide sleeve, the trigger rod pushes the guide sleeve towards the compression spring through the closed guide slope, thereby separating the third bevel gear from the second bevel gear.

[0028] By adopting the above technical solution, when adjusting the distance between the two laser emitters, the second bevel gear is first unlocked. Pressing the adjusting handwheel causes the limiting head to slide within the sliding cavity, moving the trigger rod towards the guide sleeve until it contacts the closed guide ramp on the guide sleeve. Continuing to press the adjusting handwheel allows the trigger rod to push the guide sleeve towards the compression spring through the closed guide ramp, separating the third bevel gear from the second bevel gear. Simultaneously, the compression spring compresses and stores force. When the trigger rod completely passes the closed guide ramp, the second bevel gear is unlocked. Rotating the adjusting handwheel allows adjustment of the distance between the two laser emitters. After adjusting the distance between the two laser emitters, pulling the adjusting handwheel outward disengages the trigger rod from the guide sleeve. At this point, the compression spring resets, causing the third bevel gear to approach the second bevel gear until it engages, thus locking the second bevel gear.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. After the base paper, substrate, and face paper are laid on the laying platform by setting up the upper and lower electrostatic generators, the upper and lower electrostatic generators are started. At the same time, the moving frame is driven to move along the guide rail toward the hot pressing device. The movement of the moving frame drives the pallet to move. Since the height of the pallet is slightly higher than the height of the laying platform, the movement of the pallet drives the base paper, substrate, and face paper on the laying platform to move toward the hot pressing device. During the movement, the two ends of the face paper pass through the spray nozzle of the upper electrostatic generator in turn, and the two ends of the base paper pass through the spray nozzle of the lower electrostatic generator in turn. After the face paper and base paper are charged with static electricity, they can be attracted to the substrate. This reduces the possibility of the relative position of the substrate, base paper, and face paper shifting due to the airflow passing through the contact surface gap between the substrate and the face paper and the base paper during transportation. This is beneficial to improving the pressing accuracy of double-sided decorative panels.

[0031] 2. By using an external air pipe and air nozzle, compressed air is introduced into the external air pipe during pallet transportation, causing the air nozzle to blow air upwards. This supports the bottom paper on the pallet, ensuring that the bottom paper adheres tightly to the substrate and reducing the possibility of the bottom paper sagging at both edges during transportation, which could lead to deformation or breakage.

[0032] 3. By setting up internal air blowing pipes, air blowing ports and vent holes, after the laying of the base paper, substrate and face paper is completed on the laying platform, compressed air is introduced into the internal air blowing pipes, and an upward airflow is generated at the vent holes to support the base paper, reducing the possibility of the base paper contacting the laying platform during the movement of the pallet, thereby reducing the possibility of wear and scratches on the relative surfaces of the base paper and the laying platform. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0034] Figure 2 This is a schematic diagram illustrating the structure of the upper and lower electrostatic generators in Embodiment 1 of this application.

[0035] Figure 3 This is a schematic diagram illustrating the structure of the pressure-reducing mechanism in Embodiment 1 of this application.

[0036] Figure 4 This is a schematic diagram illustrating the structure of the driven pulley and drive belt in Embodiment 1 of this application.

[0037] Figure 5 This is a schematic diagram illustrating the structure of the active pulley and drive assembly in Embodiment 1 of this application.

[0038] Figure 6 This is a schematic diagram illustrating the structure of the internal air blowing pipe and the vent hole in Embodiment 1 of this application.

[0039] Figure 7 This is a structural schematic diagram illustrating the positional relationship between the support leg frame, the crossbeam frame, and the paving platform in Embodiment 2 of this application.

[0040] Figure 8 This is a structural schematic diagram illustrating the connection relationship between the centering gear and the transmission gear in Embodiment 2 of this application.

[0041] Figure 9 This is a schematic diagram illustrating the structure of the centering rack and laser emitter in Embodiment 2 of this application.

[0042] Figure 10 This is a schematic diagram illustrating the structure of the scale lines in Embodiment 2 of this application.

[0043] Figure 11 This is a cross-sectional view illustrating the internal structure of the gearbox in Embodiment 2 of this application.

[0044] Explanation of reference numerals in the attached drawings: 1. Paving platform; 11. Clearance groove; 12. Upper electrostatic generator; 13. Lower electrostatic generator; 14. Inner air blowing pipe; 141. Air blowing port; 15. Vent hole; 2. Guide rail; 21. Outer air blowing pipe; 211. Air blowing nozzle; 3. Moving frame; 31. Support plate; 311. Fixed base; 32. Pressing mechanism; 321. Drive arm; 322. Pressing wheel; 3221. Flexible ring; 323. Drive component; 33. Connecting block; 4. Drive mechanism; 41. Drive belt; 42. Drive pulley; 421. Rotating shaft; 4211. Second connecting wheel; 43. Driven pulley; 44. Drive assembly; 441. Drive Motor; 442, First connecting wheel; 5, Crossbeam frame; 51, Support leg frame; 52, Centering gear; 53, Centering rack; 54, Laser emitter; 6, Adjustment mechanism; 61, First bevel gear; 62, Second bevel gear; 621, Through hole; 63, Drive shaft; 64, Drive gear; 65, Synchronous belt; 7, Scale line; 8, Gear box; 81, Adjustment shaft; 811, Connecting hole; 812, Sliding cavity; 82, Adjustment handwheel; 821, Sliding column; 822, Limit head; 823, Trigger rod; 83, Guide column; 831, Compression spring; 84, Third bevel gear; 841, Guide sleeve; 8411, Closed guide slope. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1-11 This application will be described in further detail below.

[0046] Example 1:

[0047] Embodiment 1 of this application discloses a feeding device for the production of double-sided decorative panels. (Refer to...) Figure 1A feeding device for producing double-sided decorative panels includes a laying platform 1, guide rails 2, a moving frame 3, and a driving mechanism 4. The laying platform 1 is used for the layering and laying of base paper, substrate, and face paper. Several guide rails 2 are provided, all arranged along the length of the laying platform 1, with one end of each guide rail located below the laying platform 1 and the other end extending towards the hot pressing device. The moving frame 3 is correspondingly arranged with the guide rails and slides along the length of the guide rails 2. A pallet 31 is installed on the moving frame 3, and the pallet 31 is arranged along the length of the laying platform 1. An obstacle groove 11 is provided on the laying platform 1 for the pallet 31 to pass through, and the obstacle groove 11 is connected to the output end of the laying platform 1. The driving mechanism 4 is used to drive the moving frame 3 to move along the length of the guide rails 2.

[0048] Reference Figure 2 The output end of the paving platform 1 is equipped with an upper electrostatic generator 12 and a lower electrostatic generator 13. The upper electrostatic generator 12 is located on the upper side of the paving platform 1, and the lower electrostatic generator 13 is located on the lower side of the paving platform 1. In this embodiment, the upper electrostatic generator 12 and the lower electrostatic generator 13 are electrostatic generating rods.

[0049] After the manual installation of the base paper, substrate, and face paper on the laying platform 1 is completed, the upper electrostatic generator 12 and the lower electrostatic generator 13 are started. At the same time, the drive mechanism 4 drives the moving frame 3 to move along the guide rail 2 toward the hot pressing device. The movement of the moving frame 3 drives the pallet 31 to move. Since the height of the pallet 31 is slightly higher than the height of the laying platform 1, the movement of the pallet 31 drives the base paper, substrate, and face paper on the laying platform 1 to move toward the hot pressing device. During the movement, the two ends of the face paper pass through the spray nozzle of the upper electrostatic generator 12 one after another, and the two ends of the base paper pass through the spray nozzle of the lower electrostatic generator 13 one after another. After the face paper and base paper are charged with static electricity, they can be attracted to the substrate, reducing the possibility of the relative position of the substrate, base paper, and face paper shifting due to the airflow passing through the contact surface gap between the substrate and the face paper and the base paper during transportation.

[0050] Reference Figure 2Due to its own weight, the face paper adheres more easily to the substrate, while the back paper needs to overcome its own downward gravity when adhering to the substrate. The back paper requires a greater electrostatic attraction than the face paper. To further reduce the possibility of separation and displacement between the back paper and the substrate, the nozzles of both the upper electrostatic generator 12 and the lower electrostatic generator 13 are elongated. The bottom nozzle of the upper electrostatic generator 12 is angled, and its upper angled end is positioned close to the hot-pressing device. The nozzle of the lower electrostatic generator 13 is positioned directly opposite the surface of the laying platform 1. Thus, when the upper electrostatic generator 12 is activated, it can both cause the face paper to become electrostatically charged as it passes through the bottom nozzle and also take care of the edge of the back paper near the hot-pressing device, causing that part of the back paper to become electrostatically charged, thereby increasing the electrostatic adsorption effect at the edge of the back paper.

[0051] Reference Figure 3 The pallet 31 has a pressing mechanism 32 at one end near the hot pressing device for pressing the base paper, substrate, and face paper. The pressing mechanism 32 includes a drive arm 321 and a pressing wheel 322. A fixed base 311 is mounted on the end of the pallet 31 near the hot pressing device. The drive arm 321 is rotatably connected to the fixed base 311, and the pressing wheel 322 is rotatably connected to the upper end of the drive arm 321. A drive component 323 is mounted on the lower side of the pallet 31, and the output end of the drive component 323 is rotatably connected to the lower end of the drive arm 321. In this embodiment, the drive component 323 can be one of a pneumatic cylinder, a hydraulic cylinder, or an electric cylinder. When the drive component 323 is activated, it drives the drive arm 321 to rotate. The rotation of the drive arm 321 drives the pressing wheel 322 to rotate around the rotation center of the drive arm 321, thereby adjusting the distance between the pressing wheel 322 and the top surface of the pallet 31, and thus achieving the purpose of the pressing wheel 322 pressing against or detaching from the face paper. When the pressure roller 322 presses the bottom paper, substrate, and face paper against the pallet 31 at the end closest to the hot pressing device, it can reduce the occurrence of the face paper curling up under the influence of airflow during transportation, and further ensure the stability of the relative position of the bottom paper, substrate, and face paper during transportation.

[0052] Reference Figure 3 A flexible ring 3221 is sleeved on the outer side of the pressure roller 322. In this embodiment, the flexible ring 3221 is made of rubber, which has a certain degree of flexibility and a buffering function, which can reduce the possibility of the face paper being crushed or indented when the pressure roller 322 presses against the face paper.

[0053] Reference Figure 1 , Figure 4 and Figure 5The drive mechanism 4 includes a drive belt 41, drive pulleys 42 at both ends of the drive belt 41, driven pulleys 43, and a drive assembly 44 that drives the drive pulleys 42 to rotate. The driven pulleys 43 are rotatably mounted on the underside of the paving platform 1, and the drive pulleys 42 are rotatably mounted on the side of the paving platform 1 near the hot pressing device. The drive belt 41 is arranged along the length of the guide rail 2. A connecting block 33 is fixed on the movable frame 3, and the bottom end of the connecting block 33 is connected to the drive belt 41.

[0054] Reference Figure 5 The drive assembly 44 includes a drive motor 441 and a first connecting wheel 442 coaxially fixed to the output end of the drive motor 441. A rotating shaft 421 is coaxially fixed to the drive pulley 42, and a second connecting wheel 4211 is coaxially fixed to the rotating shaft 421. The first connecting wheel 442 and the second connecting wheel 4211 are connected by a chain or belt drive. When the drive motor 441 starts, it drives the first connecting wheel 442 to rotate. The rotation of the first connecting wheel 442 drives the second connecting wheel 4211 to rotate. The rotation of the second connecting wheel 4211 drives the rotating shaft 421 to rotate. The rotation of the rotating shaft 421 drives the drive pulley 42 to rotate. The rotation of the drive pulley 42 drives the drive belt 41 to rotate. The rotation of the drive belt 41 can drive the connecting block 33 to move along the length direction of the guide rail 2, thereby achieving the purpose of driving the moving frame 3 to move along the length direction of the guide rail 2.

[0055] Reference Figure 2 and Figure 6 Several internal air-blowing pipes 14 are installed on the lower side of the paving platform 1. The internal air-blowing pipes 14 are arranged along the length of the paving platform 1. Several air-blowing ports 141 are evenly opened at the upper end of the internal air-blowing pipes 14. Ventilation holes 15 are opened on the paving platform 1 corresponding to the air-blowing ports 141. After the laying of the base paper, substrate and face paper is completed on the paving platform 1, compressed air is introduced into the internal air-blowing pipes 14. An upward airflow is generated at the ventilation holes 15 to support the base paper and reduce the possibility of the base paper contacting the paving platform 1 during the movement of the pallet 31, thereby reducing the possibility of wear and scratches on the opposite surfaces of the base paper and the paving platform 1.

[0056] Reference Figure 1 External air pipes 21 are installed on both sides of a section of guide rail 2 located near the hot pressing device on the paving platform 1. Several air nozzles 211 are installed at equal intervals on the external air pipes 21, with the output ends of the air nozzles 211 facing upwards. When the pallet 31 is being transported, compressed air is introduced into the external air pipes 21, causing the air nozzles 211 to blow air upwards. This supports the bottom paper on the pallet 31, ensuring that the bottom paper adheres tightly to the substrate and reducing the possibility of deformation or breakage of the bottom paper due to sagging of the two sides of the bottom paper during transportation.

[0057] The implementation principle of Embodiment 1 of this application is as follows: After the laying of the base paper, substrate and face paper is completed on the laying platform 1, the pressing mechanism 32 is used to press the end of the base paper, substrate and face paper near the hot pressing device against the pallet 31 to reduce the occurrence of the face paper curling under the influence of airflow during transportation.

[0058] Then, the upper electrostatic generator 12 and the lower electrostatic generator 13 are started, and the moving frame 3 is driven to move along the guide rail 2 toward the hot pressing device. The movement of the moving frame 3 drives the pallet 31 to move. Since the height of the pallet 31 is slightly higher than the height of the laying platform 1, the movement of the pallet 31 drives the base paper, substrate and face paper on the laying platform 1 to move toward the hot pressing device. During the movement, the two ends of the face paper pass through the spray nozzle of the upper electrostatic generator 12 one after another, and the two ends of the base paper pass through the spray nozzle of the lower electrostatic generator 13 one after another. After the face paper and base paper are charged with static electricity, they can be attracted to the substrate. This reduces the possibility of the relative position of the substrate, base paper and face paper shifting due to the airflow passing through the contact surface gap between the substrate and the face paper and the base paper during transportation. This is beneficial to improving the production efficiency of double-sided decorative panels.

[0059] During transport, compressed air is introduced into the inner air pipe 14 and the outer air pipe 21 respectively. The high-pressure airflow generated at the air vent 15 can support the bottom paper, reducing the possibility of the bottom paper contacting the paving platform 1 during the movement of the pallet 31, thereby reducing the possibility of wear and scratches on the opposite surfaces of the bottom paper and the paving platform 1. The high-pressure airflow ejected from the air nozzle 211 can support the bottom paper on the pallet 31, making the bottom paper adhere tightly to the substrate, reducing the possibility of the bottom paper sagging on both sides during transport, causing deformation or breakage of the bottom paper.

[0060] Example 2:

[0061] Embodiment 2 of this application discloses a feeding device for the production of double-sided decorative panels. (Refer to...) Figure 7 , Figure 8 and Figure 9The difference between Embodiment 2 and Embodiment 1 is that a crossbeam 5 is provided across the paving platform 1 along its width, and both ends of the crossbeam 5 are fixed to the ground by support legs 51. A centering gear 52 and two centering racks 53 meshing with the centering gear 52 are installed on the top of the crossbeam 5. The centering gear 52 is rotatably connected to the crossbeam 5 and is located directly above the center of the width of the paving platform 1. The tooth surfaces of the two centering racks 53 are arranged opposite each other, and the two centering racks 53 are slidably arranged on the crossbeam 5 along its length. Laser emitters 54 are fixed to the opposite ends of the two centering racks 53, and the emitting ends of the laser emitters 54 are positioned facing the surface of the paving platform 1, for projecting light onto the surface of the paving platform 1. The laser emitter 54 projects a crosshair onto the laying platform 1 to facilitate the laying of the substrate, backing paper, and face paper. The crosshair can be used to determine the laying position of the substrate, backing paper, and face paper, ensuring that they remain in the center of the width of the laying platform 1. This avoids the possibility of the substrate, backing paper, and face paper tilting, shifting, or even falling off due to uneven force on both sides when the pallet 31 carries the substrate, backing paper, and face paper for transportation. The crossbeam 5 is equipped with an adjustment mechanism 6 that drives the centering gear to rotate.

[0062] When the adjusting mechanism 6 drives the centering gear 52 to rotate, it causes the two centering racks 53 to slide synchronously along the length of the crossbeam frame 5. The movement of the centering racks 53 causes the laser emitters 54 to move, thereby causing the two laser emitters 54 to move closer to each other or further away from each other. The two laser emitters 54 can be adjusted synchronously, thereby adjusting the distance between the crosshairs projected by the two laser emitters 54. The midpoint of the line connecting the two crosshairs is located in the center of the width of the paving platform 1 to adapt to the production needs of double-sided decorative panels of different sizes and specifications.

[0063] Reference Figure 10 To facilitate operators in measuring the distance between the two laser emitters 54, several scale lines 7 are evenly spaced along the width direction on the surface of the paving platform 1, and the "0 scale line" is located in the center of the width of the paving platform 1.

[0064] Reference Figure 8 , Figure 9 and Figure 11A gearbox 8 is fixed to the side wall of the support leg frame 51. The adjustment mechanism 6 includes a first bevel gear 61 and a second bevel gear 62 rotatably disposed within the gearbox 8. The first bevel gear 61 meshes with the second bevel gear 62. A drive shaft 63 is rotatably connected to the side wall of the gearbox 8. The drive shaft 63 is arranged vertically. The bottom end of the drive shaft 63 is coaxially fixed with the first bevel gear 61, and the top end is coaxially fixed with a drive gear 64. The drive gear 64 is rotatably disposed on the crossbeam frame 5. The thickness of the centering gear 52 is greater than the thickness of the centering rack 53. The centering gear 52 and the drive gear 64 are connected by a synchronous belt 65, which is located above the centering rack 53. An adjustment shaft 81 is coaxially fixed to the second bevel gear 62. The adjustment shaft 81 is rotatably connected to the side wall of the gearbox 8. An adjustment handwheel 82 is installed at the end of the adjustment shaft 81 away from the second bevel gear 62.

[0065] When the dimensions of the double-sided decorative panel need to be adjusted, rotating the adjusting handwheel 82 causes the adjusting shaft 81 to rotate, which in turn drives the second bevel gear 62, which in turn drives the first bevel gear 61, which in turn drives the transmission shaft 63, which in turn drives the transmission gear 64, which in turn drives the centering gear 52 via the synchronous belt 65. Thus, through this series of transmission mechanisms, the operator can easily and quickly adjust the distance between the two laser emitters 54 simply by rotating the adjusting handwheel 82.

[0066] Reference Figure 11A sliding post 821 is coaxially fixed to one end of the adjusting handwheel 82 near the second bevel gear 62. A connecting hole 811 for inserting the sliding post 821 is provided at one end of the adjusting shaft 81 near the adjusting handwheel 82. A limiting head 822 is coaxially fixed to the end of the sliding post 821 away from the adjusting handwheel 82 to prevent the sliding post 821 from disengaging from the connecting hole 811. The limiting head 822 has a non-circular cross-section. A sliding cavity 812 adapted to the limiting head 822 is provided inside the adjusting shaft 81, and the sliding cavity 812 communicates with the connecting hole 811, allowing the limiting head 822 to slide axially within the sliding cavity 812 along the adjusting shaft 81. A trigger rod 823 is coaxially fixed to the end of the limiting head 822 away from the adjusting handwheel 82. A through hole 621 for the trigger rod 823 to pass through is provided on the second bevel gear 62 and the adjusting shaft 81. A guide post 83 is fixed on the inner wall of the gear box 8. A third bevel gear 84, which restricts the rotation of the second bevel gear 62, is slidably mounted on the guide post 83. A compression spring 831 is sleeved on the outer side of the guide post 83. One end of the compression spring 831 is fixed to the inner wall of the gear box 8, and the other end is fixed to the large end of the third bevel gear 84. A guide sleeve 841 is fixed to the end of the third bevel gear 84 away from the compression spring 831. A closed guide slope 8411 is provided at the end of the guide sleeve 841 away from the third bevel gear 84. The closed guide slope 8411 is positioned towards the trigger rod 823. When the trigger rod 823 moves towards the guide sleeve 841, the trigger rod 823 pushes the guide sleeve 841 towards the compression spring 831 through the closed guide slope 8411, thereby separating the third bevel gear 84 from the second bevel gear 62. The end of the guide sleeve 841 away from the closed guide ramp 8411 is hollow so that the guide post 83 can be avoided when the third bevel gear 84 and the first bevel gear 61 disengage.

[0067] After the distance between the two laser emitters 54 is adjusted, the second bevel gear 62 can be locked to restrict its rotation and prevent accidental changes in the distance between the two laser emitters 54. When adjusting the distance between the two laser emitters 54, first unlock the second bevel gear 62, then press the adjusting handwheel 82 to allow the limiting head 822 to slide within the sliding cavity 812. As the limiting head 822 moves towards the bottom wall of the sliding cavity 812, it drives the trigger rod 823 towards the guide sleeve 841 until the trigger rod 823 contacts the closed guide ramp 8411 on the guide sleeve 841. Continuing to press the adjusting handwheel 82 allows the trigger rod 823 to push the guide sleeve 841 towards the compression spring 831 via the closed guide ramp 8411, thus allowing the third bevel gear... 84 separates from the second bevel gear 62, and at the same time, the spring 831 is compressed and stores force. When the trigger rod 823 completely passes the closed guide slope 8411, the second bevel gear 62 is unlocked. Rotating the adjusting handwheel 82 can adjust the distance between the two laser emitters 54. After the distance between the two laser emitters 54 is adjusted, pull the adjusting handwheel 82 outward to disengage the trigger rod 823 from the guide sleeve 841. At this time, the spring 831 resets, driving the third bevel gear 84 to move closer to the second bevel gear 62 until it meshes, thus locking the second bevel gear 62.

[0068] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A feeding device for producing double-sided decorative panels, characterized in that, include: The paving platform (1) is suitable for paving the base paper, substrate and face paper; Several guide rails (2) are arranged along the length of the paving platform (1), with one end of the guide rail (2) located below the paving platform (1) and the other end extending toward the hot pressing device; A movable frame (3) is provided corresponding to the guide rail (2) and is slidably mounted on the guide rail (2) along the length direction of the guide rail (2). The movable frame (3) is provided with a tray (31), which is arranged along the length direction of the paving platform (1). The top surface of the tray (31) is higher than the platform surface of the paving platform (1). The paving platform (1) is provided with a clearance groove (11) through which the pallet (31) passes, and the clearance groove (11) is connected to the output end of the paving platform (1); The output end of the paving platform (1) is provided with an upper electrostatic generator (12) and a lower electrostatic generator (13), and the upper electrostatic generator (12) is located on the upper side of the paving platform (1), and the lower electrostatic generator (13) is located on the lower side of the paving platform (1). An external air pipe (21) is provided on the side of the paving platform (1) near the hot pressing device. The air pipe is provided with several air nozzles (211), and the output end of the air nozzles (211) is set upward. The paving platform (1) has several internal air blowing pipes (14) arranged horizontally on its lower side. The upper end of the internal air blowing pipes (14) is provided with several air blowing ports (141). The paving platform (1) is provided with ventilation holes (15) corresponding to the air blowing ports (141).

2. The feeding equipment for producing double-sided decorative panels according to claim 1, characterized in that: The bottom nozzle of the upper electrostatic generator (12) is inclined, and the inclined upper end of the upper electrostatic generator (12) is located close to the hot pressing device.

3. The feeding equipment for producing double-sided decorative panels according to claim 1, characterized in that: The pallet (31) is provided with a pressing mechanism (32) for pressing the bottom paper, substrate and face paper at one end near the hot pressing device. The pressing mechanism (32) includes a driving arm (321) and a pressing wheel (322). The driving arm (321) is rotatably connected to the end of the pallet (31) near the hot pressing device. The pressing wheel (322) is provided on the driving arm (321). The pallet (31) is provided with a driving component (323) for driving the driving arm (321) to rotate.

4. The feeding equipment for producing double-sided decorative panels according to claim 1, characterized in that: It also includes a drive mechanism (4) for driving the movable frame (3) to move along the length direction of the guide rail (2). The drive mechanism (4) includes a drive belt (41), a drive pulley (42) and a driven pulley (43) located at both ends of the drive belt (41). The movable frame (3) is provided with a connecting block (33), which is connected to the drive belt (41). The drive belt (41) is arranged along the length direction of the guide rail (2). The drive mechanism (4) also includes a drive assembly (44) for driving the drive pulley (42) to rotate.

5. The feeding equipment for producing double-sided decorative panels according to claim 1, characterized in that: The paving platform (1) is provided with a crossbeam frame (5) spanning its own width direction. The crossbeam frame (5) is provided with a centering gear (52) and two centering racks (53) meshing with the centering gear (52). The centering gear (52) is rotatably connected to the crossbeam frame (5) and is located directly above the center of the width of the paving platform (1). The tooth surfaces of the two centering racks (53) are arranged opposite each other. The two centering racks (53) are slidably arranged on the crossbeam frame (5) along the length direction of the crossbeam frame (5). The opposite ends of the two centering racks (53) are respectively connected to laser emitters (54). The emitting end of the laser emitter (54) is arranged facing the platform surface of the paving platform (1). The crossbeam frame (5) is provided with an adjustment mechanism (6) for driving the centering gear to rotate.

6. The feeding equipment for producing double-sided decorative panels according to claim 5, characterized in that: The crossbeam frame (5) has support legs (51) at both ends, and a gear box (8) is provided on the support legs (51). The adjustment mechanism (6) includes a first bevel gear (61) and a second bevel gear (62) rotatably disposed in the gear box (8). The first bevel gear (61) meshes with the second bevel gear (62). A drive shaft (63) is rotatably connected to the gear box (8). The drive shaft (63) is arranged in a vertical direction, and the bottom end of the drive shaft (63) is coaxially fixed with the first bevel gear (61). A transmission gear (64) is coaxially fixed at the top end. The transmission gear (64) is rotatably mounted on the crossbeam frame (5). The centering gear (52) is connected to the transmission gear (64) via a synchronous belt (65). The synchronous belt (65) is located on the upper side of the centering rack (53). An adjusting shaft (81) is coaxially fixed to the second bevel gear (62). The adjusting shaft (81) is rotatably connected to the gear box (8). An adjusting handwheel (82) is provided at the end of the adjusting shaft (81) away from the second bevel gear (62).

7. The feeding equipment for producing double-sided decorative panels according to claim 6, characterized in that: The adjusting handwheel (82) has a sliding post (821) at one end near the second bevel gear (62), and the adjusting shaft (81) has a connecting hole (811) at one end near the adjusting handwheel (82) for inserting the sliding post (821). The sliding post (821) has a limiting head (822) at one end away from the adjusting handwheel (82) to prevent the sliding post (821) from disengaging from the connecting hole (811). The limiting head (822) has a non-circular cross-section. The adjusting shaft (81) has a sliding cavity (812) inside that matches the limiting head (822), allowing the limiting head (822) to slide axially along the adjusting shaft (81) within the sliding cavity (812). A trigger rod (823) is provided at the end of the limiting head (822) away from the adjusting handwheel (82). The second bevel gear (62) and the adjusting shaft (81) have through holes (621) through which the trigger rod (823) passes. The gearbox (… 8) A guide post (83) is provided on the inner wall. A third bevel gear (84) for limiting the rotation of the second bevel gear (62) is slidably arranged on the guide post (83). A compression spring (831) is sleeved on the guide post (83). One end of the compression spring (831) is connected to the gear box (8), and the other end is connected to the third bevel gear (84). A guide sleeve (841) is provided at the end of the third bevel gear (84) away from the compression spring (831). 841) A closed guide slope (8411) is provided at the end away from the third bevel gear (84). The closed guide slope (8411) is set towards the trigger rod (823). When the trigger rod (823) moves towards the guide sleeve (841), the trigger rod (823) pushes the guide sleeve (841) towards the compression spring (831) through the closed guide slope (8411) so that the third bevel gear (84) is separated from the second bevel gear (62).

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