A laminated board stacking apparatus with an automatic film covering structure

Abstract

The application discloses a laminated board stacking equipment with an automatic film covering structure, which comprises a stacking table, a film covering table, a moving table and a suction mechanism. The laminated board is moved to the stacking table by the moving table and the mechanical arm driving the suction mechanism, and the film in the film covering mechanism is automatically pulled out and covered on the surface of the board by the pulling mechanism installed on one side of the suction mechanism, so that an alternating structure of one layer of board and one layer of film is formed in the stacking process. The film covering mechanism can flexibly adjust the tension, conveying speed and clamping force of the film by the upper and lower distributed rollers and the feeding parts on the two sides, so that the film remains flat during the pulling and covering process. The suction mechanism adopts four suction discs cooperating with a vacuum pump to generate negative pressure, and silica gel discs are arranged at the bottom of the suction discs, so that the suction force is uniformly distributed and the board is stably grabbed. The precise movement of the board from the gluing station to the stacking station is realized by the stable movement of the moving table on the track.

Description

Technical Field

[0001] This invention belongs to the technical field of automated sheet metal processing equipment, and specifically relates to a pressing and stacking equipment for sheets with an automatic coating structure. Background Technology

[0002] In the production of engineered wood products such as plywood and multi-layer solid wood composite boards, multiple thin boards are typically bonded together under pressure using adhesives to form a single board. After bonding, residual, not fully cured adhesive often remains around the edges and surfaces of the board. In actual production, multiple bonded boards need to be temporarily stacked for subsequent edge trimming, sanding, or packaging. However, during stacking, the weight of the upper boards compresses the lower boards, causing the residual adhesive at their edges to be squeezed outwards. When adjacent layers come into direct contact, the overflowing adhesive can easily stick the upper and lower boards together. Once the adhesive has cured, this not only increases the difficulty of separating the boards later but may also damage the board surface during forced separation, affecting finished product quality and production efficiency.

[0003] To address the aforementioned issues, the industry practice typically involves manually laying release paper or plastic film between each layer of boards before stacking to prevent direct contact of the adhesive. However, this method is still a manual operation, resulting in low efficiency, poor consistency, and failing to fundamentally change the traditional stacking method of "direct stacking of boards." Currently, there is no stacking mode that can automatically achieve alternating stacking of "one layer of board and one layer of film" during the board stacking process. Therefore, we need to provide a pressing board stacking equipment with an automatic film coating structure. Summary of the Invention

[0004] The purpose of this invention is to provide a pressing board stacking device with an automatic coating structure. By setting up a moving stage and a robotic arm to drive the adsorption mechanism, the glued boards are transferred to the stacking stage. At the same time, a pulling mechanism installed on one side of the adsorption mechanism automatically pulls out the film in the coating mechanism and covers the surface of the board. Thus, during the stacking process, an alternating structure of one layer of board and one layer of film is formed, which effectively blocks the path of the edge glue flowing out due to the pressure of the upper board and directly contacting the lower board, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pressing plate stacking device with an automatic coating structure, comprising: Stacking table, laminating table, moving table, and adsorption mechanism; The top of the stacking platform is used to stack the glued boards, and the laminating platform is equipped with a laminating mechanism for conveying the film. The surface of the moving platform is connected to the adsorption mechanism via a robotic arm. The robotic arm is used to move the adsorption mechanism so that the adsorption mechanism can move the glued board to the stacking platform. A pulling mechanism is installed on one side of the adsorption mechanism. The pulling mechanism is used to pull out the film in the coating mechanism and cover it on the board to achieve the stacking of one layer of board and one layer of film, so as to avoid the glue in the board from flowing out and causing the adjacent boards to stick together.

[0006] Preferably, a plurality of rollers are rotatably installed inside the stacking platform, and the plurality of rollers are evenly distributed along the length direction of the stacking platform, and a fixing frame is slidably installed on the surface of the stacking platform.

[0007] Preferably, the bottom of the inner wall of the fixed frame is provided with four hydraulic rods, which are synchronous rods used to drive the height adjustment of the stacking platform so that the stacked plates on the top of the stacking platform are at a moderate height and at the same height, so that the robotic arm drives the adsorption mechanism at the correct working height.

[0008] Preferably, it also includes a cutting mechanism for cutting the film, the cutting mechanism including a base plate fixed to one side of the fixing frame, two hydraulic rods are installed on one side of the base plate, a lifting frame is fixedly installed on the top of the two hydraulic rods, and a hot melt wire is provided inside the lifting frame.

[0009] Preferably, it also includes a track fixed on the ground, the mobile platform is slidably mounted on the track, and the track is provided with a drive unit to drive the mobile platform so that the mobile platform and the robotic arm can move along the length of the track.

[0010] Preferably, the adsorption mechanism includes a frame installed at the movable end of the robotic arm, four adsorption disks are embedded in the surface of the frame, a vacuum pump is fixedly installed on the top of the frame, the vacuum pump is used to generate negative pressure in the four adsorption disks so that the bottom of the four adsorption disks can adsorb the plate, and a silicone disk is installed at the bottom of each of the four adsorption disks.

[0011] Preferably, the pulling mechanism includes two seats fixed to one side of the frame, a rod rotatably mounted between the two seats, and two movable claws fixedly mounted on the surface of the rod. The bottom of each of the two movable claws is provided with a fixed claw, and the two fixed claws are fixed to the surface of the frame. A driver for rotating the rod is provided on one side of the seats.

[0012] Preferably, the film coating mechanism includes a film coating frame located on one side of the stacking table, with three rollers rotatably mounted on the upper and lower sides of the film coating frame, and feeding parts for film coating movement installed on both sides of the film coating frame.

[0013] Preferably, the feeding part includes a fixed frame fixed on both sides of the film coating frame, a floating frame installed in the fixed frame by two hydraulic rods, a driven roller installed in the floating frame, a drive roller rotatably installed in the fixed frame, and a motor for rotating the drive roller is provided on one side of the fixed frame. Hydraulic rods are fixedly installed on both sides of the film coating frame, and one end of each of the two hydraulic rods is fixed to the surface of one of the fixed frames.

[0014] Preferably, a material rack is fixedly installed on one side of the film-coating frame, and a film roll is rotatably installed in the groove of the material rack.

[0015] Technical effects and advantages of the present invention: The pressing plate stacking device with an automatic coating structure proposed in this invention has the following advantages compared with the prior art: This invention uses a moving platform and a robotic arm to drive an adsorption mechanism to transfer the glued boards to a stacking platform. At the same time, a pulling mechanism installed on one side of the adsorption mechanism automatically pulls out the film from the coating mechanism and covers the surface of the boards. This creates an alternating structure of one board and one film during the stacking process, effectively blocking the path of the upper board pressing down on the edge adhesive and causing it to flow out and directly contact the lower board.

[0016] Through the coordinated operation of the pulling mechanism and the coating mechanism, the film is automatically pulled and covered after each board is moved into place, realizing the integrated continuous operation of stacking and coating, improving production efficiency and the consistency of stacking quality. Several rollers are rotatably installed in the stacking table, and together with the slidingly installed fixed frame and the four synchronous hydraulic rods at the bottom, the height of the stacking table can be automatically adjusted according to the thickness of the stacked boards, so that the top layer of boards is always at the same height suitable for the adsorption mechanism to work.

[0017] The laminating mechanism, with its upper and lower rollers and feeding sections on both sides, can flexibly adjust the film tension, conveying speed, and clamping force to ensure that the film remains flat and wrinkle-free during the stretching and covering process. The adsorption mechanism uses four adsorption plates in conjunction with a vacuum pump to generate negative pressure, and a silicone plate is placed at the bottom of the adsorption plates to ensure uniform distribution of adsorption force and stable gripping of the board. Through the smooth movement of the moving table on the track, the board is transferred from the gluing station to the stacking station without damage and with precision.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a perspective view of the robotic arm and adsorption mechanism of the present invention; Figure 3 This is a perspective view of the adsorption mechanism of the present invention; Figure 4 This is a perspective view of the tensioning mechanism of the present invention; Figure 5 This is a perspective view of the coating platform and stacking platform of the present invention; Figure 6 This is a perspective view of the cutting mechanism of the present invention; Figure 7 This is a perspective view of the coating mechanism of the present invention; Figure 8 This is a partial three-dimensional view of the structure of the present invention; Figure 9 This is a perspective view of the feeding section of the present invention.

[0020] In the diagram: 1. Stacking table; 2. Coating table; 3. Moving table; 4. Adsorption mechanism; 41. Frame; 42. Adsorption plate; 43. Vacuum pump; 5. Coating mechanism; 51. Coating frame; 52. Roller; 53. Feeding section; 531. Fixed frame; 532. Hydraulic rod three; 533. Floating frame; 534. Driven roller; 535. Drive roller; 6. Pulling mechanism; 61. Seat; 62. Rod; 63. Movable claw; 64. Fixed claw; 7. Roller; 8. Fixed frame; 9. Hydraulic rod one; 10. Cutting mechanism; 101. Base plate; 102. Hydraulic rod two; 103. Lifting frame; 104. Hot melt wire; 11. Track; 12. Hydraulic rod four; 13. Material rack; 14. Film roll; 15. Robotic arm. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely used to explain the present invention and are not intended to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides, for example Figure 1-9 The illustrated laminating plate stacking equipment with an automated coating structure includes: Stacking platform 1, film covering platform 2, moving platform 3, and adsorption mechanism 4; The top of the stacking platform 1 is used to stack the glued boards, and the film coating platform 2 is equipped with a film coating mechanism 5 for conveying the film. The surface of the moving platform 3 is connected to the adsorption mechanism 4 via a robotic arm 15. The robotic arm 15 is used to move the adsorption mechanism 4 so that the adsorption mechanism 4 can move the glued board onto the stacking platform 1. A pulling mechanism 6 is installed on one side of the adsorption mechanism 4. The pulling mechanism 6 is used to pull out the film in the coating mechanism 5 and cover it on the board to achieve the stacking of one layer of board and one layer of film. This avoids the glue in the board from flowing out and causing the adjacent boards to stick together. The adsorption mechanism 4 is driven by the moving stage 3 and the robotic arm 15 to transfer the glued board to the stacking stage 1. At the same time, the pulling mechanism 6 installed on one side of the adsorption mechanism 4 automatically pulls out the film in the coating mechanism 5 and covers the surface of the board. Thus, during the stacking process, an alternating structure of one layer of board and one layer of film is formed, which effectively blocks the path of the glue flowing out from the edge due to the pressure of the upper board and directly contacting the lower board.

[0023] like Figure 5 As shown, a plurality of rollers 7 are rotatably installed inside the stacking platform 1, and the plurality of rollers 7 are evenly distributed along the length direction of the stacking platform 1. A fixing frame 8 is slidably installed on the surface of the stacking platform 1. The rollers 7 are rotatably connected to the inner walls of both sides of the stacking platform 1 via bearings at both ends. The upper surface of the rollers 7 is slightly higher than the inner bottom surface of the stacking platform 1, forming a rolling support surface. When the board is placed or its position needs to be finely adjusted, the rollers 7 convert the sliding friction between the board and the stacking platform 1 into rolling friction, greatly reducing frictional resistance and preventing scratches or wear on the bottom surface of the board due to sliding. The fixing frame 8 is U-shaped, and its bottom is slidably installed on the surface of the stacking platform 1 through a slide rail and a slider. Its position can be steplessly adjusted along the height direction of the stacking platform 1. The vertical sidewalls of the fixing frame 8 are used to limit the side of the board in the stack, preventing the board from horizontally shifting, twisting or slipping due to external force or its own weight during the stacking process.

[0024] like Figure 5 As shown, the bottom of the inner wall of the fixed frame 8 is provided with four hydraulic rods 9. The four hydraulic rods are synchronous rods used to drive the height adjustment of the stacking platform 1 so that the stacked plates on the top of the stacking platform 1 are at a moderate height and at the same height, so that the robotic arm 15 drives the adsorption mechanism 4 at the correct working height.

[0025] like Figure 6 As shown, it also includes a cutting mechanism 10 for cutting the film. The cutting mechanism 10 includes a base plate 101 fixed to one side of the fixing frame 8. Two hydraulic rods 102 are installed on one side of the base plate 101. A lifting frame 103 is fixedly installed on the top of the two hydraulic rods, and a hot melt wire 104 is provided inside the lifting frame 103. The base plate 101 is vertically fixed to one side of the outer wall of the fixing frame 8 by welding. Two hydraulic rods 102 are symmetrically arranged at both ends of the base plate 101. The cylinder of the hydraulic rod 102 is fixedly connected to the base plate 101, and its telescopic rod extends vertically upward and is fixedly connected to the bottom ends of the lifting frame 103. The lifting frame 103 has an inverted U-shaped or rectangular frame 41 structure, and a hot melt wire 104 is arranged transversely inside it. The two ends of the hot melt wire 104 are fixed to the two side walls of the lifting frame 103 through insulating terminals and are heated by an external power supply. When a thin film completely covers the surface of the plate... After the film is cut, the two hydraulic rods 102 extend synchronously, driving the lifting frame 103 to rise, so that the hot melt wire 104 contacts the part of the film to be cut, and the film is instantly melted by high temperature. The advantage of the hot melt wire 104 in cutting is that during the melting process, a small amount of fusion sealing can be generated at the cut edge of the film, preventing the film from rolling back or tearing due to its own elastic shrinkage after cutting. At the same time, the fusion edge avoids the fibers from spreading or burrs from being generated. After the cutting is completed, the two hydraulic rods 102 retract synchronously, driving the lifting frame 103 to return to the initial low position to avoid the next film coating action.

[0026] like Figure 2 As shown, it also includes a track 11 fixed on the ground, the mobile platform 3 is slidably mounted on the track 11, and the track 11 is provided with a drive unit to drive the mobile platform 3 so that the mobile platform 3 and the robotic arm 15 can move along the length direction of the track 11. The track 11 is fixedly laid on the ground along the straight line between the board feeding station and the stacking station. The cross-section of the track 11 is I-shaped or V-shaped to ensure smooth sliding. The bottom of the moving table 3 is equipped with a sliding block or slider that matches the track 11. The moving table 3 slides with the track 11 through the sliding block. The drive unit is installed inside the track 11 or on one side of the track 11. The drive unit adopts a screw and nut mechanism or a gear and rack mechanism driven by a motor. The motor is fixed at the end of the track 11 or the bottom of the moving table 3. The screw and nut cooperate or the gear and rack mesh to convert the rotational motion of the motor into the linear reciprocating motion of the moving table 3 along the track 11. Driven by the drive unit, the moving table 3 can accurately stop and grab the board at the board feeding station, and then move smoothly to the top of the stacking station to release the board.

[0027] like Figure 3 As shown, the adsorption mechanism 4 includes a frame 41 installed at the movable end of the robotic arm 15. Four adsorption disks 42 are embedded in the surface of the frame 41. A vacuum pump 43 is fixedly installed on the top of the frame 41. The vacuum pump 43 is used to generate negative pressure in the four adsorption disks so that the bottom of the four adsorption disks 42 can adsorb the board. A silicone disk is installed at the bottom of each of the four adsorption disks 42. The frame 41 has a rectangular plate structure, and its center is fixedly connected to the movable end of the robotic arm 15 via a flange or connecting seat, enabling the robotic arm 15 to move the frame 41 in space with multiple degrees of freedom and adjust its posture. Four adsorption plates 42 are respectively embedded at the four corners of the bottom of the frame 41, arranged symmetrically in a rectangle to ensure uniform distribution of adsorption force on the plate and prevent the plate from tilting or falling due to uneven force during adsorption. A vacuum pump 43 is fixedly installed on the top of the frame 41, and its air inlet is connected to the four adsorption plates 42 via four independent or parallel vacuum lines. The internal cavities of 2 are interconnected; after the vacuum pump 43 is started, negative pressure is generated in each adsorption plate 42, so that the bottom of the adsorption plate 42 forms a suction force; the silicone disc is a ring or disc structure, which is attached and fixed to the end face of the bottom of the adsorption plate 42 that contacts the plate. The silicone material has good flexibility and self-adaptability, and can undergo elastic deformation under adsorption pressure, closely adhering to the micro-uneven areas on the surface of the plate, thereby enhancing the sealing effect and improving the adsorption reliability; at the same time, the elastic buffering effect of the silicone disc can prevent the hard adsorption plate 42 from directly impacting the surface of the plate, causing indentations, scratches or paint damage.

[0028] like Figure 4 As shown, the pulling mechanism 6 includes two seats 61 fixed to one side of the frame 41, a rod 62 rotatably mounted between the two seats 61, and two movable claws 63 fixedly mounted on the surface of the rod 62. The bottom of each of the two movable claws 63 is provided with a fixed claw 64, and the two fixed claws 64 are fixed to the surface of the frame 41. A driver for rotating the rod 62 is provided on one side of the seat 61. Two seats 61 are fixedly connected to the two ends of the same side wall of the frame 41. Each seat 61 is equipped with a bearing or bushing. The two ends of the rod 62 pass through the two seats 61 and cooperate with the inner ring of the bearing, so that the rod 62 can rotate freely between the seats 61. The rod 62 is a cylindrical rod, and two movable claws 63 are fixedly installed on its surface by key connection, welding or set screws. The positions of the two movable claws 63 correspond one-to-one with the positions of the two fixed claws 64 below. The fixed claws 64 are fixed to the side wall of the frame 41 by connecting plates or direct welding, located directly below the movable claws 63, and the clamping surfaces of the fixed claws 64 are opposite to the clamping surfaces of the movable claws 63. The driver is installed on it. On the outer side of the base 61, the output shaft of the driver is connected to one end of the rod 62. The driver can be a rotary cylinder, a stepper motor, or a servo motor, which can precisely control the rotation angle and rotation speed of the rod 62. When the film needs to be clamped, the driver drives the rod 62 to rotate forward, causing the movable claw 63 to rotate downward around the axis of the rod 62, so that the clamping surface of the movable claw 63 gradually approaches the clamping surface of the fixed claw 64 and clamps the end of the film. When the film needs to be released, the driver drives the rod 62 to rotate in the opposite direction, and the movable claw 63 is lifted upward to release the film. The pulling mechanism 6 and the adsorption mechanism 4 share the same robotic arm 15, realizing the coordinated execution of the two actions of plate transfer and film traction.

[0029] like Figure 9 As shown, the film coating mechanism 5 includes a film coating frame 51 located on one side of the stacking table 1. Three rollers 52 are rotatably installed inside the film coating frame 51, both above and below. Feeding parts 53 for film coating movement are installed on both sides of the film coating frame 51. The laminating frame 51 is a rectangular frame 41 structure, fixedly installed on the ground or base on one side of the stacking platform 1, forming a vertical channel for the film to pass through. Three upper rollers 52 are mounted side by side and rotated horizontally at the top inside the laminating frame 51, and three lower rollers 52 are mounted side by side and rotated at the corresponding positions at the bottom inside the frame. A gap is formed between the upper rollers 52 and the lower rollers 52 for the film to pass through. The surface of each roller 52 may be covered with a rubber or silicone layer to increase the friction between it and the film and prevent slippage. The six rollers 52 work together to guide and flatten the film in multiple stages. At the same time, through the rotational inertia of the rollers 52 and appropriate damping settings, a constant tension force is applied to the film to prevent the film from loosening, wrinkling or folding during the transport process. The feeding part 53 is symmetrically installed on both sides of the laminating frame 51, located at the front or rear end of the roller group 52. The feeding part 53 works in coordination with the rollers 52: the feeding part 53 is responsible for providing the active driving force for the film to be transported forward, while the roller group 52 is responsible for guiding and tensioning.

[0030] like Figure 9As shown, the feeding unit 53 includes a fixed frame 531 fixed on both sides of the film coating frame 51. A floating frame 533 is installed inside the fixed frame 531 via two hydraulic rods 532. A driven roller 534 is installed inside the floating frame 533. A drive roller 535 is rotatably installed inside the fixed frame 531. A motor for rotating the drive roller 535 is provided on one side of the fixed frame 531. Hydraulic rods 12 are fixedly installed on both sides of the film coating frame 51. One end of each of the two hydraulic rods 12 is fixed to the surface of one of the fixed frames 531. The fixed frame 531 is a rectangular shell structure, with its back side fixedly connected to the side wall of the laminating frame 51. The fixed frame 531 has a vertical guide groove or guide post inside. The floating frame 533 is installed inside the fixed frame 531 via two hydraulic rods 532. The cylinders of the hydraulic rods 532 are fixed to the top or bottom of the fixed frame 531, and their telescopic rods are connected to the floating frame 533. The two hydraulic rods 532 move synchronously to drive the floating frame 533 to move up and down along the guide groove. The driven roller 534 is rotatably installed inside the floating frame 533, and its surface can be covered with rubber to increase friction. The drive roller 535 is rotatably installed in the lower part of the fixed frame 531, vertically opposite to the driven roller 534. One end of the drive roller 535 passes through the side wall of the fixed frame 531 and is connected to the output shaft of the motor. The motor is fixed to the outside of the fixed frame 531. The cylinder of hydraulic rod 4 12 is fixed to the side wall of the laminating frame 51, and the end of its telescopic rod is fixedly connected to the outer side wall of the fixed frame 531. Two hydraulic rods 4 12 are symmetrically arranged on both sides of the laminating frame 51, and can independently or synchronously adjust the horizontal position of the corresponding side fixed frame 531. By extending and retracting hydraulic rod 3 532, the clamping gap between the driven roller 534 and the driving roller 535 can be adjusted, thereby adapting to films of different thicknesses and adjusting the clamping force. By extending and retracting hydraulic rod 4 12, the relative distance between the two fixed frames 531 can be adjusted, thereby adapting to film rolls 14 of different widths. When the motor drives the driving roller 535 to rotate, the driven roller 534 is pressed against the upper surface of the film under the pressure of hydraulic rod 3 532, and together with the driving roller 535, forms a clamping and conveying pair for the film, pushing the film forward smoothly.

[0031] like Figure 8 As shown, a material rack 13 is fixedly installed on one side of the film-coating frame 51, and a film roll 14 is rotatably installed in the groove of the material rack 13; The material rack 13 is either a box structure with an opening on one side or two independent support arms. The material rack 13 is fixedly connected to one side of the laminating frame 51 by bolts or welding and is located at the front end of the feeding section 53, i.e., the starting end of the film conveying direction. A U-shaped groove is provided on the upper end or inner side of the material rack 13. The width of the groove matches the diameter of the rotating shafts at both ends of the film roll 14. The bottom of the groove is arc-shaped to reduce rotational friction. A rotating shaft is inserted through the center of the film roll 14. The two ends of the rotating shaft are respectively placed in the groove of the material rack 13, and the film roll 14 can rotate freely around the rotating shaft. When the drive roller 535 of the feeding section 53 rotates and pulls the film forward, the film drives the film roll 14 to be passively unwound in the groove. The unwinding speed of the film roll 14 is automatically matched with the conveying speed of the feeding section 53. The open design of the groove of the material rack 13 makes the installation and replacement of the film roll 14 extremely convenient. It is only necessary to lift the rotating shafts at both ends of the film roll 14 and put them into the groove.

[0032] Working principle: The moving stage 3, driven by the drive unit, moves along the length of track 11 to the station where the plywood to be stacked is located. The robotic arm 15 drives the adsorption mechanism 4 to move directly above the plywood, so that the four adsorption plates 42 at the bottom of the frame 41 contact the upper surface of the plywood. The vacuum pump 43 is activated, generating negative pressure in the four adsorption plates, causing the silicone discs at the bottom of the adsorption plates 42 to adhere tightly to the surface of the plywood, firmly adsorbing the plywood. Subsequently, the robotic arm 15 is raised, the moving stage 3 returns to the station where the stacking table 1 is located, and the robotic arm 15 transfers the adsorbed plywood to the top of the stacking table 1 and releases it, completing the stacking of one plywood.

[0033] When a sheet is placed on the stacking table 1, the pulling mechanism 6 is activated: the driver drives the rod 62 to rotate, causing the two movable claws 63 to open or close relative to the fixed claws 64, clamping the end of the film that has been fed to the clamping position in the coating mechanism 5. The two hydraulic rods 532 are used to push the movable end of the film to the clamping position. Then the robotic arm 15 moves again, driving the pulling mechanism 6 to pull the film out of the coating mechanism 5 and cover the surface of the sheet that was just placed, realizing the structure of covering one layer of sheet with one layer of film. The roller 52 and the feeding part 53 in the coating mechanism 5 cooperate with the film pulling action to continuously release the film and maintain appropriate tension.

[0034] When the laminating mechanism 5 is working, the feeding sections 53 on both sides of the laminating frame 51 work together: the hydraulic rod 532 drives the floating frame 533 to move, so that a suitable clamping gap is formed between the driven roller 534 and the driving roller 535, clamping the film. The motor drives the driving roller 535 to rotate, which works with the driven roller 534 to convey the film forward. Inside the laminating frame 51, there are six rollers 52 in two rows to guide and flatten the direction of the film, ensuring that the film arrives at the stretching position flat and wrinkle-free. When a layer of film completely covers the surface of the board, the cutting mechanism 10 is started: the two hydraulic rods 102 on the base plate 101 rise synchronously, driving the lifting frame 103 to move upward. The hot melt wire 104 set inside the lifting frame 103 contacts the film that has been covered and melts the film with high temperature. The hot melt wire 104 cutting allows the film edges to be slightly fused together, preventing the film from rolling back or unraveling after cutting. After cutting, the hydraulic rod 102 drives the lifting frame 103 to reset, ready for the next film coating.

[0035] As the boards and films are stacked alternately on the stacking platform 1, the total stacking height gradually increases. The four synchronous hydraulic rods 9 at the bottom of the inner wall of the fixing frame 8 automatically drive the stacking platform 1 to move downward according to the change in stacking height, so that the upper surface of the topmost board on the stacking platform 1 is always kept at the same preset height position. This height matches the working height of the robotic arm 15 driving the adsorption mechanism 4 to transfer boards and perform film covering operations, ensuring that the adsorption mechanism 4 places boards each time and the pulling mechanism 6 covers films each time, with precise and consistent movement positions.

[0036] The multiple hydraulic rods 9, 102, 532, and 12 mentioned in this application are all synchronous rod structures. Their specific control principles and synchronous driving methods are conventional prior art in this field and will not be described in detail here.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pressing plate stacking device with an automatic coating structure, characterized in that, include: Stacking platform (1), film covering platform (2), moving platform (3) and adsorption mechanism (4); The top of the stacking platform (1) is used to stack the glued boards, and the film coating platform (2) is provided with a film coating mechanism (5) for film conveying. The surface of the moving platform (3) is connected to the adsorption mechanism (4) via a robotic arm (15). The robotic arm (15) is used to move the adsorption mechanism (4) so ​​that the adsorption mechanism (4) can move the glued board onto the stacking platform (1). The pulling mechanism (6) is installed on one side of the adsorption mechanism (4). The pulling mechanism (6) is used to pull out the film in the coating mechanism (5) and cover the board to achieve the stacking of one layer of board and one layer of film, so as to avoid the glue in the board from flowing out and causing the adjacent boards to stick together.

2. The pressing plate stacking equipment with an automatic coating structure according to claim 1, characterized in that: Several rollers (7) are rotatably installed inside the stacking platform (1). The rollers (7) are evenly distributed along the length of the stacking platform (1). A fixing frame (8) is slidably installed on the surface of the stacking platform (1).

3. The pressing plate stacking equipment with an automatic coating structure according to claim 2, characterized in that: The bottom of the inner wall of the fixed frame (8) is provided with four hydraulic rods (9). The four hydraulic rods are synchronous rods used to drive the height adjustment of the stacking platform (1) so that the stacked plates on the top of the stacking platform (1) are at the same height so that the robotic arm (15) drives the adsorption mechanism (4) at the correct working height.

4. The pressing plate stacking equipment with an automatic coating structure according to claim 1, characterized in that: It also includes a cutting mechanism (10) for cutting the film, the cutting mechanism (10) includes a base plate (101) fixed to one side of the fixing frame (8), two hydraulic rods (102) are installed on one side of the base plate (101), and a lifting frame (103) is fixedly installed on the top of the two hydraulic rods, and a hot melt wire (104) is provided inside the lifting frame (103).

5. The pressing plate stacking equipment with an automatic coating structure according to claim 1, characterized in that: It also includes a track (11) fixed on the ground, the mobile platform (3) is slidably mounted on the track (11), and the track (11) is provided with a drive unit to drive the mobile platform (3) so that the mobile platform (3) and the robotic arm (15) move along the length direction of the track (11).

6. The pressing plate stacking equipment with an automatic coating structure according to claim 1, characterized in that: The adsorption mechanism (4) includes a frame (41) installed at the movable end of the robotic arm (15). Four adsorption plates (42) are embedded in the surface of the frame (41). A vacuum pump (43) is fixedly installed on the top of the frame (41). The vacuum pump (43) is used to generate negative pressure in the four adsorption plates so that the bottom of the four adsorption plates (42) can adsorb the plate. A silicone plate is installed at the bottom of each of the four adsorption plates (42).

7. A pressing plate stacking device with an automatic coating structure according to claim 6, characterized in that: The pulling mechanism (6) includes two seats (61) fixed on one side of the frame (41), a rod (62) is rotatably mounted between the two seats (61), and two movable claws (63) are fixedly mounted on the surface of the rod (62). The bottom of each of the two movable claws (63) is provided with a fixed claw (64), and the two fixed claws (64) are fixed to the surface of the frame (41). A driver for rotating the rod (62) is provided on one side of the seat (61).

8. A pressing plate stacking device with an automatic coating structure according to claim 1, characterized in that: The film coating mechanism (5) includes a film coating frame (51) located on one side of the stacking table (1). Three rollers (52) are rotatably installed on the upper and lower sides of the film coating frame (51). Feeding parts (53) for film coating movement are installed on both sides of the film coating frame (51).

9. A pressing plate stacking device with an automatic coating structure according to claim 8, characterized in that: The feeding unit (53) includes a fixed frame (531) fixed on both sides of the film coating frame (51). A floating frame (533) is installed in the fixed frame (531) through two hydraulic rods (532). A driven roller (534) is installed in the floating frame (533). A drive roller (535) is rotatably installed in the fixed frame (531). A motor for rotating the drive roller (535) is provided on one side of the fixed frame (531). Hydraulic rods (12) are fixedly installed on both sides of the film coating frame (51). One end of each of the two hydraulic rods (12) is fixed to the surface of one of the fixed frames (531).

10. A pressing plate stacking device with an automatic coating structure according to claim 9, characterized in that: A material rack (13) is fixedly installed on one side of the film-coating frame (51), and a film roll (14) is rotatably installed in the groove of the material rack (13).

Images