A kind of jointing device for producing single board-plastic film composite board

Abstract

The application discloses a kind of single board-plastic film composite board production jointing device, it is related to composite board jointing technical field, including equipment base, mobile bearing frame is movably arranged on the equipment base, lifting type feeding table is arranged on one side of the equipment base, two groups of support columns are fixedly installed on the equipment base, film paper bearing seat is fixedly installed on the support column, central work mounting bracket is fixedly installed on one side of two groups of support columns;Single board transfer mechanism, the single board transfer mechanism includes single board negative pressure suction head and lifting rod, lifting rod is movably installed on the mobile bearing frame, single board negative pressure suction head is rotatably installed on the lifting rod.The single board transfer mechanism, film paper laminating mechanism, film paper hot-pressing shaping mechanism are cooperated in the application, realize the full automation of single board and plastic film material taking, alignment, laminating operation, replace traditional manual film coating operation, solve the problem of poor precision and low efficiency of manual film coating.

Description

Technical Field

[0001] This invention relates to the field of composite board joining technology, specifically to a joining device for the production of veneer-plastic film composite boards. Background Technology

[0002] In current film-paper lamination processes, film paper is typically used as a thin film material to cover the surface of a substrate, widely applied for surface decoration and protection of products such as wood panels, furniture, and building materials. Existing lamination processes include continuous lamination and film-paper hot pressing. Continuous lamination offers high automation but requires a supporting production and transportation line and specialized machinery, and film replacement costs are high. In film-paper hot pressing, the film paper exists as a single sheet, manually placed on both sides of the veneer before being fed into a hot press. This method is low-cost, with low film paper replacement costs, but it relies heavily on manual operation, especially in placing the film on both sides of the veneer. This requires not only manual handling and rotation of the veneer but also manual alignment of the film paper with the veneer. The film paper is removed from the stack and simply placed on both sides of the veneer for initial alignment. However, this method typically relies on human vision and experience, making it difficult to guarantee precise alignment of the film paper and thus achieving a tight bond between the film paper and the veneer. In existing technologies, the process of taking the membrane paper is mostly just placing the membrane paper on both sides of the single board without effective bonding. This method cannot effectively prevent the membrane paper from shifting during the subsequent hot pressing process, resulting in uneven bonding of the membrane paper.

[0003] In traditional processes, the lamination of the film and veneer is typically completed using a hot press. In this process, the film is heated and pressure is applied to bond it to the veneer. However, because the surfaces of the film and veneer are not pre-bonded, the film may shift when fed into the hot press, resulting in uneven contact between the film layer and the veneer, leading to bubbles, wrinkles, or even incomplete adhesion. This is especially problematic when the veneer surface has some irregularities, making it difficult for the film to perfectly conform to the surface shape, thus negatively impacting the hot pressing process. Summary of the Invention

[0004] The purpose of this invention is to provide a bonding device for the production of veneer-plastic film composite boards, so as to solve the problems mentioned in the background art, such as the low accuracy of manual lamination and the potential deformation of direct hot pressing of film paper.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a joining device for the production of single-layer plastic film composite boards, comprising an equipment base, a movable support frame movably disposed on the equipment base, a lifting feeding platform disposed on one side of the equipment base, two sets of support columns fixedly installed on the equipment base, each support column being fixedly installed with a film paper support seat, and a central working mounting frame fixedly installed on one side of the two sets of support columns; A single-board transfer mechanism, comprising a single-board negative pressure adsorption head and a lifting rod, wherein the lifting rod is movably mounted on the movable support frame, and the single-board negative pressure adsorption head is rotatably mounted on the lifting rod; A membrane paper bonding mechanism includes a counterweight mounting base, membrane paper adsorption clamping arms, and membrane paper suction cups. The counterweight mounting base is movably mounted on the central working mounting frame. Two sets of membrane paper adsorption clamping arms are rotatably mounted on the counterweight mounting base. Membrane paper suction cups are movably mounted in an array on the membrane paper adsorption clamping arms. The film paper hot pressing and shaping mechanism includes a hot pressing mechanism moving frame, a main pressure roller and an electric heating tube. The hot pressing mechanism moving frame is movably mounted on the central working mounting frame. The main pressure roller and the electric heating tube are movably mounted on the hot pressing mechanism moving frame. The main pressure roller and the electric heating tube are located on the lower side of the film paper adsorption clamping arm.

[0006] Preferably, the single-board transfer mechanism further includes a translation sliding seat, a translation guide groove, a first cylinder, and a finished single-board receiving bracket. Translation sliding seats are fixedly installed on both sides of the movable support frame, and rollers are arrayed on the translation sliding seats. Two sets of translation guide grooves are opened on the equipment base, and the translation sliding seats slide within the translation guide grooves. A first cylinder is fixedly installed on the equipment base, and the telescopic rod of the first cylinder is fixedly connected to the movable support frame. Two sets of finished single-board receiving brackets are fixedly installed on one side of the movable support frame, and the positions of the two sets of finished single-board receiving brackets are opposite to the positions of the gaps between the two sets of film paper support seats.

[0007] Preferably, the single-board transfer mechanism further includes a first dual-head motor, a first lead screw, a first sliding block, a first nut, and a first hinge rod. The first dual-head motor is fixedly installed at the center of the upper side of the movable support frame. The first lead screw is fixedly installed on the output shaft of the first dual-head motor. The first lead screw is rotatably installed on the upper side of the movable support frame. Two sets of first sliding blocks are slidably installed on the upper side of the movable support frame. A first nut is fixedly installed inside the first sliding block. The first nut is threaded onto the first lead screw. A first hinge rod is rotatably installed on the lower side of the first sliding block. The lower end of the first hinge rod is rotatably installed on a lifting rod. The lifting rod is slidably installed on the movable support frame.

[0008] Preferably, the single-board transfer mechanism further includes a mounting box, a rotary motor, a worm gear, a suction head rotating seat, and a hollow worm wheel. The mounting box is fixedly mounted on the lifting rod, the rotary motor is fixedly mounted on the mounting box, the worm gear is rotatably mounted inside the mounting box, and the worm gear is fixedly connected to the output shaft of the rotary motor. A suction head rotating seat is fixedly mounted on the single-board negative pressure suction head, and a hollow worm wheel is fixedly mounted on the suction head rotating seat. The suction head rotating seat and the hollow worm wheel are rotatably mounted at the center position of the lifting rod, and the worm gear meshes with the hollow worm wheel.

[0009] Preferably, the film-paper bonding mechanism further includes an electric winding wheel, a lifting rope, an installation wheel, hollow gears, transmission gears, and a clamping arm rotation drive motor. An electric winding wheel is fixedly installed at the upper end of the central working mounting frame. A lifting rope is fixedly installed on the winding roller of the electric winding wheel. The lifting rope is fixedly installed on a counterweight mounting base. Two sets of installation wheels are rotatably installed on the counterweight mounting base. The film-paper adsorption clamping arm is fixedly installed on the installation wheels. Hollow gears are fixedly installed on each installation wheel. Two sets of transmission gears are rotatably installed inside the counterweight mounting base. The two sets of transmission gears mesh with the two sets of hollow gears. A clamping arm rotation drive motor is fixedly installed on the counterweight mounting base. The output shaft of the clamping arm rotation drive motor is fixedly installed on one set of transmission gears.

[0010] Preferably, the membrane paper bonding mechanism further includes a hollow guide rod, a connecting rod, a negative pressure ventilation manifold, and a flexible tube. A hollow guide rod is fixedly installed on each membrane paper suction cup. The hollow guide rod is movably inserted into the membrane paper adsorption clamping arm. A connecting rod is fixedly installed at the upper end of the hollow guide rod. A negative pressure ventilation manifold is fixedly installed on the counterweight mounting base. Flexible tubes are installed at both ends of the negative pressure ventilation manifold. One end of the flexible tube is fixedly installed on the connecting rod.

[0011] Preferably, the membrane paper bonding mechanism further includes a second sliding block, a movable mandrel, a first movable groove, a second movable groove, a second hinge rod, a telescopic drive support, a telescopic drive connecting rod, a guide post, a guide groove, a telescopic drive motor, a second lead screw, and a second nut. The membrane paper adsorption clamping arm has an array of second sliding blocks arranged within it. The second sliding blocks are fixedly connected to each other via the movable mandrel. The movable mandrel is movably inserted into the membrane paper adsorption clamping arm and is movably inserted into the mounting wheel and hollow gear. The movable mandrel has an array of first movable grooves, and the hollow guide rod is inserted into the first movable groove. The membrane paper adsorption clamping arm has an array of second movable grooves, and a second hinge rod is rotatably mounted on the second sliding block. The second hinge rod is inserted into the second movable slot and is rotatably mounted on the lower side of the connecting rod. One end of the counterweight mounting base is provided with a telescopic drive support. Two sets of telescopic drive connecting rods are fixedly mounted on the lower side of the telescopic drive support. The telescopic drive connecting rods are rotatably mounted in the movable spindle. Two sets of guide columns are fixedly mounted on the upper end of the telescopic drive support. Two sets of guide slots are opened on the counterweight mounting base, and the guide columns are inserted into the guide slots. A second nut is fixedly mounted at the center position of the upper end of the telescopic drive support. A telescopic drive motor is fixedly mounted inside the counterweight mounting base. A second lead screw is fixedly mounted on the output shaft of the telescopic drive motor, and the second nut is threaded onto the second lead screw.

[0012] Preferably, the film paper hot pressing and shaping mechanism further includes a second double-headed motor, a third lead screw, a hot pressing moving guide seat, a hot pressing sliding guide rod, a third nut, and a shaping mounting arm. The second double-headed motor is fixedly mounted on the hot pressing mechanism moving frame, and the third lead screw is fixedly mounted on the output shaft of the second double-headed motor. The hot pressing moving guide seat is fixedly mounted on the hot pressing mechanism moving frame, and the hot pressing moving guide seat is movably mounted on the central working mounting frame. A pressure sensor is provided on the upper side of the hot pressing moving guide seat, and hot pressing sliding guide rods are movably inserted into both ends of the hot pressing moving guide seat. A third nut is fixedly mounted on the lower end of the hot pressing sliding guide rod, and the third nut is threaded onto the third lead screw. A shaping mounting arm is fixedly mounted on the hot pressing sliding guide rod, and a main pressure roller is rotatably mounted on the shaping mounting arm.

[0013] Preferably, the film paper hot pressing and shaping mechanism further includes a heat-gathering ring, an auxiliary shaping roller, a second cylinder, and an anti-slip limiting frame. The heat-gathering ring is fixedly installed on the lower side of the shaping mounting arm, and an electric heating tube is fixedly installed inside the heat-gathering ring. The auxiliary shaping rollers are rotatably installed at both ends of the heat-gathering ring. The outer side of the auxiliary shaping roller is flush with the outer side of the main roller. The second cylinder is fixedly installed on the central working mounting frame, and the output shaft of the second cylinder is fixedly installed on the lower side of the hot pressing mechanism moving frame. Anti-slip limiting frames are fixedly installed on the film paper support.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention achieves fully automated material handling, alignment and bonding of single board and plastic film through the coordinated operation of single board transfer mechanism, film paper bonding mechanism and film paper hot pressing and shaping mechanism, replacing the traditional manual lamination operation, solving the problems of poor alignment accuracy and low efficiency of manual lamination. At the same time, through vacuum adsorption and precise clamping, the film paper and single board are bonded evenly, effectively avoiding bonding defects such as bubbles and wrinkles, and greatly improving the processing quality and production efficiency of composite board semi-finished products.

[0015] 2. This invention adopts a pre-bonding and shaping method followed by hot pressing. By heating and pressing, the film paper is pre-stably attached to the surface of the veneer, forming a semi-finished product structure that is easy to transport. This effectively prevents the film paper from shifting during subsequent hot pressing and placement. At the same time, it is suitable for the production situation where the edges of the veneer are irregular. Precise film bonding can be completed without pre-correcting the edges of the veneer, simplifying the production process and reducing production costs and defect rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a bottom view diagram of the structure provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of structural separation provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structural separation at the single-board transfer mechanism provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structural separation at the central working mounting frame provided in an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the structure at the membrane paper adsorption clamping arm provided in an embodiment of the present invention; Figure 7 This is a schematic cross-sectional view of the counterweight mounting base provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the film paper hot pressing and shaping mechanism provided in an embodiment of the present invention; Figure 9 Provided for embodiments of the present invention Figure 6 A magnified view of part A in the diagram; Figure 10 Provided for embodiments of the present invention Figure 6 A magnified view of part B in the diagram.

[0017] In the diagram: 1. Equipment base; 2. Mobile support frame; 3. Lifting feeding platform; 4. Support column; 5. Film paper support seat; 6. Central working mounting frame; 7. Single board transfer mechanism; 701. Translation sliding seat; 702. Translation guide chute; 703. First cylinder; 704. Finished single board receiving bracket; 705. Single board negative pressure adsorption head; 706. Lifting rod; 707. First double-headed motor; 708. First lead screw; 709. First sliding... 710. Block; 711. First nut; 712. First hinge rod; 713. Mounting box; 714. Rotary motor; 715. Worm gear; 716. Adsorption head rotating seat; 717. Hollow worm gear; 8. Film paper bonding mechanism; 801. Electric winding wheel; 802. Lifting rope; 803. Counterweight mounting seat; 804. Film paper adsorption clamping arm; 805. Film paper suction cup; 806. Mounting wheel; 807. Hollow gear; 808. Transmission gear; 809. 810. Clamping arm rotation drive motor; 811. Hollow guide rod; 812. Connecting rod; 813. Negative pressure vent main pipe; 814. Flexible tube; 815. Second sliding block; 816. Movable spindle; 817. First movable groove; 818. Second movable groove; 819. Second hinge rod; 820. Telescopic drive support; 821. Telescopic drive connecting rod; 822. Guide post; 823. Guide groove; 824. Telescopic drive motor; 825. Second screw 825. Rod; 9. Second nut; 10. Film paper hot pressing and shaping mechanism; 11. Hot pressing mechanism moving frame; 12. Second double-headed motor; 13. Third lead screw; 14. Hot pressing moving guide seat; 15. Hot pressing sliding guide rod; 16. Third nut; 17. Shaping mounting arm; 18. Main pressure roller; 19. Heat-gathering ring; 10. Electric heating tube; 11. Auxiliary shaping pressure roller; 12. Second cylinder; 13. Anti-slip limit frame. Detailed Implementation

[0018] 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. 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.

[0019] Please see Figures 1-10 The present invention provides a technical solution: a joining device for the production of single-layer plastic film composite board, including a base 1, a movable support frame 2 movably arranged on the base 1, a lifting feeding platform 3 arranged on one side of the base 1, two sets of support columns 4 fixedly installed on the base 1, each of the support columns 4 fixedly installed with a film paper support seat 5, and a central working mounting frame 6 fixedly installed on one side of the two sets of support columns 4. The single-board transfer mechanism 7 includes a single-board negative pressure adsorption head 705 and a lifting rod 706. The lifting rod 706 is movably installed on the movable support frame 2, and the single-board negative pressure adsorption head 705 is rotatably installed on the lifting rod 706. The membrane paper bonding mechanism 8 includes a counterweight mounting base 803, a membrane paper adsorption clamping arm 804, and a membrane paper suction cup 805. The counterweight mounting base 803 is movably mounted on the central working mounting frame 6. Two sets of membrane paper adsorption clamping arms 804 are rotatably mounted on the counterweight mounting base 803. The membrane paper adsorption clamping arms 804 are movably mounted in an array on the membrane paper adsorption clamping arms 804. The film paper hot pressing and shaping mechanism 9 includes a hot pressing mechanism moving frame 901, a main pressure roller 908, and an electric heating tube 910. The hot pressing mechanism moving frame 901 is movably mounted on the central working mounting frame 6. The main pressure roller 908 and the electric heating tube 910 are movably mounted on the hot pressing mechanism moving frame 901. The main pressure roller 908 and the electric heating tube 910 are located on the lower side of the film paper adsorption clamping arm 804. During equipment operation, the single-board negative pressure adsorption head 705 lowers to adsorb the single board. The movable support frame 2 moves in coordination with the rotation of the single-board negative pressure adsorption head 705, aligning the single board vertically with the gap between the two sets of membrane paper support seats 5. The single-board negative pressure adsorption head 705 rises to insert the single board between the two sets of membrane paper adsorption clamping arms 804. The membrane paper suction cup 805 lowers to adsorb the membrane paper on the membrane paper support seat 5. The membrane paper adsorption clamping arm 804 rotates to align the membrane paper with the edge of the single board. The membrane paper suction cup 805 moves to adhere the membrane paper to the single board and clamp the single board. At this time, the single-board negative pressure adsorption head 705 resets. During the clamping process, the main pressure roller 9... 08 and the auxiliary shaping pressure roller 911 approach each other to heat and press the film paper. The film paper adsorption clamping arm 804 rises to clamp the single board upward, so that the film paper is tightly attached to the single board. Then the film paper adsorption clamping arm 804 returns to its original position, so that the joined single board is inserted between the finished single board receiving brackets 704 and the conveying is completed in the next cycle. This structure realizes the fully automated bonding of single board and film paper. After bonding, the film paper is stably attached to the single board, which is convenient for subsequent feeding into the hot press for conveying and hot pressing. The bonding method of pressing with the main pressure roller 908 can make the film paper bonding more uniform and effectively reduce the generation of air bubbles and wrinkles.

[0020] Furthermore, the single-board transfer mechanism 7 also includes a translation sliding seat 701, a translation guide groove 702, a first cylinder 703, and a finished single-board receiving bracket 704. The translation sliding seats 701 are fixedly installed on both sides of the movable support frame 2. Rollers are arranged in an array on the translation sliding seats 701. Two sets of translation guide grooves 702 are opened on the equipment base 1. The translation sliding seats 701 slide in the translation guide grooves 702. The first cylinder 703 is fixedly installed on the equipment base 1. The telescopic rod of the first cylinder 703 is fixedly connected to the movable support frame 2. Two sets of finished single-board receiving brackets 704 are fixedly installed on one side of the movable support frame 2. The positions of the two sets of finished single-board receiving brackets 704 are opposite to the positions of the gaps between the two sets of film paper support seats 5. The lifting feeding platform 3 is used to place the veneer to be coated, and the film is placed on the film paper carrier 5. This structure can enable the movable carrier 2 to slide directionally along the equipment base 1. On the one hand, it can help the uncoated veneer to be accurately transferred between the two sets of film paper carriers 5, and at the same time provide working space for the veneer to rotate. On the other hand, it can receive the coated veneer and realize directional transfer, thus completing the automated transfer operation of the veneer. Furthermore, the single-board transfer mechanism 7 also includes a first dual-head motor 707, a first lead screw 708, a first sliding block 709, a first nut 710, and a first hinge rod 711. The first dual-head motor 707 is fixedly installed at the center of the upper side of the movable support frame 2. The first lead screw 708 is fixedly installed on the output shaft of the first dual-head motor 707. The first lead screw 708 is rotatably installed on the upper side of the movable support frame 2. Two sets of first sliding blocks 709 are slidably installed on the upper side of the movable support frame 2. The first nut 710 is fixedly installed inside the first sliding block 709. The first nut 710 is threaded onto the first lead screw 708. The first hinge rod 711 is rotatably installed on the lower side of the first sliding block 709. The lower end of the first hinge rod 711 is rotatably installed on the lifting rod 706. The lifting rod 706 is slidably installed on the movable support frame 2. The function of this structure is to drive the single-board negative pressure adsorption head 705 to rise and fall, so that the single-board negative pressure adsorption head 705 has a stable pressure when it comes into contact with the single board, and in conjunction with the lifting feeding platform 3, it can realize the continuous adsorption of single boards on the lifting feeding platform 3. Furthermore, the single-board transfer mechanism 7 also includes a mounting box 712, a rotary motor 713, a worm gear 714, an adsorption head rotating seat 715, and a hollow worm wheel 716. The mounting box 712 is fixedly mounted on the lifting rod 706, the rotary motor 713 is fixedly mounted on the mounting box 712, the worm gear 714 is rotatably mounted inside the mounting box 712, and the worm gear 714 is fixedly connected to the output shaft of the rotary motor 713. The adsorption head rotating seat 715 is fixedly mounted on the single-board negative pressure adsorption head 705, and the hollow worm wheel 716 is fixedly mounted on the adsorption head rotating seat 715. The adsorption head rotating seat 715 and the hollow worm wheel 716 are rotatably mounted at the center position of the lifting rod 706, and the worm gear 714 meshes with the hollow worm wheel 716. This structure constitutes the rotary drive mechanism of the single-board negative pressure adsorption head 705. The rotation action has a self-locking characteristic. Combined with the translation and lifting structure, the single-board negative pressure adsorption head 705 can achieve multi-degree-of-freedom movement of translation, lifting, and rotation. It can adjust the horizontally placed single board to a vertical state and insert it between the two sets of film paper carrier seats 5. In actual production, the flatness of the front side of the single board before film coating is insufficient and cannot be used as a reference surface for vertical placement. This structure uses the horizontal stacking reference surface of the single board as the positioning basis, avoids the influence of uneven edges of the single board, keeps the single board in a stable state perpendicular to the ground, and greatly improves the film paper bonding accuracy. Furthermore, the film-paper bonding mechanism 8 also includes an electric winding wheel 801, a lifting rope 802, a mounting wheel 806, a hollow gear 807, a transmission gear 808, and a clamping arm rotation drive motor 809. The electric winding wheel 801 is fixedly mounted on the upper end of the central working mounting frame 6. The lifting rope 802 is fixedly mounted on the winding roller of the electric winding wheel 801. The lifting rope 802 is fixedly mounted on the counterweight mounting base 803. Two sets of mounting wheels 806 are rotatably mounted on the counterweight mounting base 803. The film-paper adsorption clamping arm 804 is fixedly mounted on the mounting wheel 806. Hollow gears 807 are fixedly mounted on each mounting wheel 806. Two sets of transmission gears 808 are rotatably mounted inside the counterweight mounting base 803. The two sets of transmission gears 808 mesh with the two sets of hollow gears 807. The clamping arm rotation drive motor 809 is fixedly mounted on the counterweight mounting base 803. The output shaft of the clamping arm rotation drive motor 809 is fixedly mounted on one set of transmission gears 808. This structure enables the lifting and rotation adjustment of the membrane paper adsorption clamping arm 804, completes the precise bonding of the membrane paper suction cup 805 and the membrane paper on the membrane paper carrier 5, and achieves the alignment of the membrane paper end with the single board side by rotating the membrane paper adsorption clamping arm 804, completing the synchronous bonding operation of the membrane paper on both sides. The lifting action of the counterweight mounting base 803 provides the necessary position adjustment basis for the subsequent clamping and lifting operation of the single board. Furthermore, the membrane paper bonding mechanism 8 also includes a hollow guide rod 810, a connecting rod 811, a negative pressure ventilation manifold 812, and a flexible tube 813. Hollow guide rods 810 are fixedly installed on the membrane paper suction cup 805, and are movably inserted into the membrane paper adsorption clamping arm 804. A connecting rod 811 is fixedly installed at the upper end of the hollow guide rod 810. A negative pressure ventilation manifold 812 is fixedly installed on the counterweight mounting base 803, and flexible tubes 813 are installed at both ends of the negative pressure ventilation manifold 812. One end of the flexible tube 813 is fixedly installed on the connecting rod 811. This structure is a negative pressure adsorption structure for the membrane paper. After the membrane paper is adsorbed, the rotation of the membrane paper adsorption clamping arm 804 allows one side of the membrane paper to face the other side of the single sheet, providing the positional conditions for subsequent bonding of the membrane paper and the single sheet. The flexible tube 813 adapts to the rotation of the membrane paper adsorption clamping arm 804, ensuring continuous airflow. Furthermore, the film-paper bonding mechanism 8 also includes a second sliding block 814, a movable spindle 815, a first movable groove 816, a second movable groove 817, a second hinge rod 818, a telescopic drive support 819, a telescopic drive connecting rod 820, a guide column 821, a guide groove 822, a telescopic drive motor 823, a second lead screw 824, and a second nut 825. The film-paper adsorption and clamping arm 804 has an array of second sliding blocks 814 arranged within it. The second sliding blocks 814 are fixedly connected to each other via the movable spindle 815. The movable spindle 815 is movably inserted into the film-paper adsorption and clamping arm 804 and is movably inserted into the mounting wheel 806 and the hollow gear 807. The movable spindle 815 has an array of first movable grooves 816, and the hollow guide rod 810 is inserted into the first movable groove 816. The film-paper adsorption and clamping arm 804 has an array of second movable grooves 817, and the second sliding block 814 rotates... A second hinge rod 818 is installed and inserted into a second movable slot 817. The second hinge rod 818 is rotatably mounted on the lower side of the connecting rod 811. A telescopic drive support 819 is provided at one end of the counterweight mounting base 803. Two sets of telescopic drive connecting rods 820 are fixedly installed on the lower side of the telescopic drive support 819. The telescopic drive connecting rods 820 are rotatably mounted in a movable spindle 815. Two sets of guide posts 821 are fixedly installed at the upper end of the telescopic drive support 819. Two sets of guide slots 822 are provided on the counterweight mounting base 803. The guide posts 821 are inserted into the guide slots 822. A second nut 825 is fixedly installed at the center of the upper end of the telescopic drive support 819. A telescopic drive motor 823 is fixedly installed in the counterweight mounting base 803. A second lead screw 824 is fixedly installed on the output shaft of the telescopic drive motor 823. The second nut 825 is threaded onto the second lead screw 824. This structure constitutes the telescopic drive mechanism of the film paper suction cup 805. Its main function is to achieve stable clamping of the single board, and its secondary function is to adapt to the dynamic changes in the placement height of the film paper. Through the linkage attitude adjustment of multiple sets of second hinge rods 818, the hollow guide rod 810 is synchronously telescopic, ensuring uniform clamping force on the single board and improving the stability of equipment operation. This telescopic structure can adapt to the rotation of the film paper adsorption clamping arm 804, ensuring the coordination of the mechanism's movement. Furthermore, the film paper hot pressing and shaping mechanism 9 also includes a second double-head motor 902, a third lead screw 903, a hot pressing moving guide seat 904, a hot pressing sliding guide rod 905, a third nut 906, and a shaping mounting arm 907. The second double-head motor 902 is fixedly mounted on the hot pressing mechanism moving frame 901, and the third lead screw 903 is fixedly mounted on the output shaft of the second double-head motor 902. The hot pressing moving guide seat 904 is fixedly mounted on the hot pressing mechanism moving frame 901. The hot-pressing moving guide seat 904 is movably installed on the central working mounting frame 6. A pressure sensor is set on the upper side of the hot-pressing moving guide seat 904. Hot-pressing sliding guide rods 905 are movably inserted at both ends of the hot-pressing moving guide seat 904. A third nut 906 is fixedly installed at the lower end of the hot-pressing sliding guide rod 905. The third nut 906 is threaded onto the third lead screw 903. A shaping mounting arm 907 is fixedly installed on the hot-pressing sliding guide rod 905. A main pressure roller 908 is rotatably installed on the shaping mounting arm 907. This structure constitutes a film paper flattening mechanism. After the film paper adsorption clamping arm 804 completes the clamping of the veneer and the film paper, the main pressure roller 908 simultaneously achieves clamping and positioning. The film paper adsorption clamping arm 804 moves upward while the hot pressing mechanism moving frame 901 remains stationary, thus achieving the directional flattening of the film paper. This flattening method can effectively eliminate air bubbles generated during the bonding process between the film paper and the veneer, making the laminated veneer more evenly stressed in the subsequent hot pressing process, and significantly reducing the defect rate of film paper wrinkles, misalignment, etc. Furthermore, the film paper hot pressing and shaping mechanism 9 also includes a heat-gathering ring 909, an auxiliary shaping roller 911, a second cylinder 912, and an anti-slip limit frame 913. The heat-gathering ring 909 is fixedly installed on the lower side of the shaping mounting arm 907. An electric heating tube 910 is fixedly installed inside the heat-gathering ring 909. The auxiliary shaping roller 911 is rotatably installed at both ends of the heat-gathering ring 909. The outer side of the auxiliary shaping roller 911 is flush with the outer side of the main roller 908. The second cylinder 912 is fixedly installed on the central working mounting frame 6. The output shaft of the second cylinder 912 is fixedly installed on the lower side of the hot pressing mechanism moving frame 901. Anti-slip limit frames 913 are fixedly installed on the film paper support seat 5. The anti-slip limiting frame 913 has grooves that are compatible with the film paper adsorption clamping arm 804 and the shaping and mounting arm 907. Its core function is to prevent the lower layer of film paper from slipping during the adsorption process. This structure can pre-attach the film paper to the surface of the veneer by heating before the main pressure roller 908 presses the film paper. With the pressing of the main pressure roller 908, the film paper and the veneer are stably bonded, making the laminated veneer a semi-finished product that is easy to transport. It is more convenient to place in the subsequent hot pressing process and completely avoids the problem of film paper deviation. The present invention and its device operate continuously in the following sequence, with each mechanism working together to complete the automated pre-bonding of the single board and the film paper. The specific workflow is as follows: Material supply and foundation positioning The lifting feeding platform 3 places the single board to be coated, the film paper carrier 5 places the plastic film to be laminated, and the anti-slip limit frame 913 limits the film paper to prevent the lower layer of film paper from sliding when picking up the material.

[0021] Single board gripping and translation positioning The single-board transfer mechanism 7 starts operation based on the mobile support frame 2. The first cylinder 703 drives the translation sliding seat 701 to slide along the translation guide slide 702, which drives the mobile support frame 2 to move accurately above the lifting feeding platform 3. The first double-head motor 707 drives the first lead screw 708 to rotate, which drives the first nut 710 and the first sliding block 709 to move. The first hinge rod 711 pushes the lifting rod 706 down, so that the single-board negative pressure adsorption head 705 contacts and adsorbs one side of the single board under negative pressure.

[0022] Single board posture adjustment The rotary motor 713 drives the worm gear 714 to rotate. The worm gear 714 meshes with the hollow worm wheel 716, which drives the adsorption head rotating seat 715 to rotate, adjusting the horizontal single board to a vertical position, thus completing the single board's posture conversion.

[0023] Single-board alignment and insertion The first cylinder 703 drives the movable support frame 2 to move horizontally again, and the first dual-head motor 707 rotates in the opposite direction to drive the lifting rod 706 to move upward, so that the vertical single board is inserted into the gap between the two sets of film paper support seats 5; and the single board is stably sent to the film paper adsorption clamping arm 804 of the film paper bonding mechanism 8.

[0024] Membrane paper adsorption and orientation alignment When the film paper bonding mechanism 8 starts working, the telescopic drive motor 823 drives the second lead screw 824 to rotate, causing the second nut 825 and the telescopic drive support 819 to move. Through the linkage of the telescopic drive connecting rod 820 and the second hinge rod 818, the hollow guide rod 810 and the film paper suction cup 805 are pushed to extend and retract synchronously, so that the film paper suction cup 805 contacts one side of the film paper. The negative pressure ventilation main pipe 812 provides negative pressure to the film paper suction cup 805 through the flexible pipe 813, adsorbing the film paper on the film paper carrier 5. Then the telescopic drive motor 823 reverses, so that the film paper suction cup 805 is reset. At this time, one end of a film paper is adsorbed. The clamping arm rotation drive motor 809 drives the transmission gear 808 to rotate. The transmission gear 808 meshes with the hollow gear 807, and through the mounting wheel 806, it drives the film paper adsorption clamping arm 804 to rotate, so that the film paper is aligned with the edge of the single board.

[0025] Film paper and single board bonding and clamping Based on the motion principle of the membrane paper suction cup 805 described above, the membrane paper is tightly adhered to the surface of the single board and clamped; the single board negative pressure suction head 705 releases the negative pressure and resets, completing the handover of the single board.

[0026] Film paper heat pressing and shaping The electric winding wheel 801 is activated, and the winding lifting rope 802 causes the counterweight mounting seat 803 to rise, thereby driving the single board to rise. The film paper hot pressing and shaping mechanism 9 is activated, and the second double-head motor 902 drives the third lead screw 903 to rotate, causing the third nut 906 and the hot pressing sliding guide rod 905 to move, so that the shaping mounting arm 907 moves closer to each other. The electric heating tube 910 heats the film paper, and the main pressure roller 908 and the auxiliary shaping pressure roller 911 contact the film paper to heat and press it, eliminating air bubbles and wrinkles. The hot pressing moving guide seat 904 limits the stroke to ensure that the pressing pressure is uniform and stable. During the descent of the counterweight mounting seat 803, the second cylinder 912 drives the hot pressing mechanism moving frame 901 to move through the pressure sensor, ensuring that the relative position of the main pressure roller 908 and the film paper adsorption clamping arm 804 is fixed and avoiding motion interference.

[0027] Finished product transfer and cyclical operation The electric winding wheel 801 releases the lifting rope 802, driving the counterweight mounting base 803 downwards. The film paper adsorption clamping arm 804 clamps the pre-joined single board and descends synchronously. After the film paper adsorption clamping arm 804 resets, the finished single board falls between the finished single board receiving brackets 704. The first cylinder 703 drives the moving support frame 2 to move horizontally, transferring the finished single board out of the machine. The equipment cycles according to the above process to achieve continuous automated joining production.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A joining device for the production of veneer-plastic film composite panels, comprising a base (1), characterized in that: A movable support frame (2) is movably installed on the equipment base (1). A lifting feeding platform (3) is provided on one side of the equipment base (1). Two sets of support columns (4) are fixedly installed on the equipment base (1). A film paper support seat (5) is fixedly installed on each of the support columns (4). A central working mounting frame (6) is fixedly installed on one side of the two sets of support columns (4). The single-board transfer mechanism (7) includes a single-board negative pressure adsorption head (705) and a lifting rod (706). The lifting rod (706) is movably installed on the movable support frame (2), and the single-board negative pressure adsorption head (705) is rotatably installed on the lifting rod (706). The membrane paper bonding mechanism (8) includes a counterweight mounting base (803), a membrane paper adsorption clamping arm (804), and a membrane paper suction cup (805). The counterweight mounting base (803) is movably mounted on the central working mounting frame (6). Two sets of membrane paper adsorption clamping arms (804) are rotatably mounted on the counterweight mounting base (803). Membrane paper suction cups (805) are movably mounted in an array on the membrane paper adsorption clamping arms (804). The film paper hot pressing and shaping mechanism (9) includes a hot pressing mechanism moving frame (901), a main pressure roller (908) and an electric heating tube (910). The hot pressing mechanism moving frame (901) is movably mounted on the central working mounting frame (6). The main pressure roller (908) and the electric heating tube (910) are movably mounted on the hot pressing mechanism moving frame (901). The main pressure roller (908) and the electric heating tube (910) are located on the lower side of the film paper adsorption clamping arm (804).

2. The joining device for producing a veneer-plastic film composite board according to claim 1, characterized in that: The single-board transfer mechanism (7) further includes a translation sliding seat (701), a translation guide groove (702), a first cylinder (703), and a finished single-board receiving bracket (704). The translation sliding seat (701) is fixedly installed on both sides of the mobile support frame (2). Rollers are arrayed on the translation sliding seat (701). Two sets of translation guide grooves (702) are opened on the equipment base (1). The translation sliding seat (701) slides in the translation guide groove (702). The first cylinder (703) is fixedly installed on the equipment base (1). The telescopic rod of the first cylinder (703) is fixedly connected to the mobile support frame (2). Two sets of finished single-board receiving brackets (704) are fixedly installed on one side of the mobile support frame (2). The positions of the two sets of finished single-board receiving brackets (704) and the gap between the two sets of film paper support seats (5) are opposite.

3. The joining device for producing a veneer-plastic film composite board according to claim 2, characterized in that: The single-board transfer mechanism (7) further includes a first double-head motor (707), a first lead screw (708), a first sliding block (709), a first nut (710), and a first hinge rod (711). The first double-head motor (707) is fixedly installed at the center of the upper side of the movable support frame (2). The first lead screw (708) is fixedly installed on the output shaft of the first double-head motor (707). The first lead screw (708) is rotatably installed on the upper side of the movable support frame (2). Two sets of first sliding blocks (709) are slidably installed on the upper side of the movable support frame (2). The first nut (710) is fixedly installed inside the first sliding block (709). The first nut (710) is threaded onto the first lead screw (708). The first hinge rod (711) is rotatably installed on the lower side of the first sliding block (709). The lower end of the first hinge rod (711) is rotatably installed on the lifting rod (706). The lifting rod (706) is slidably installed on the movable support frame (2).

4. The joining device for producing a veneer-plastic film composite board according to claim 3, characterized in that: The single-board transfer mechanism (7) further includes a mounting box (712), a rotary motor (713), a worm gear (714), an adsorption head rotating seat (715), and a hollow worm wheel (716). The mounting box (712) is fixedly installed on the lifting rod (706). The rotary motor (713) is fixedly installed on the mounting box (712). The worm gear (714) is rotatably installed inside the mounting box (712). The worm gear (714) is fixedly connected to the output shaft of the rotary motor (713). The adsorption head rotating seat (715) is fixedly installed on the single-board negative pressure adsorption head (705). The hollow worm wheel (716) is fixedly installed on the adsorption head rotating seat (715). The adsorption head rotating seat (715) and the hollow worm wheel (716) are rotatably installed at the center position of the lifting rod (706). The worm gear (714) meshes with the hollow worm wheel (716).

5. The joining device for producing a veneer-plastic film composite board according to claim 1, characterized in that: The film-paper bonding mechanism (8) further includes an electric winding wheel (801), a lifting rope (802), a mounting wheel (806), a hollow gear (807), a transmission gear (808), and a clamping arm rotation drive motor (809). The electric winding wheel (801) is fixedly mounted on the upper end of the central working mounting frame (6). The lifting rope (802) is fixedly mounted on the winding roller of the electric winding wheel (801). The lifting rope (802) is fixedly mounted on the counterweight mounting base (803). Two sets of mounting wheels are rotatably mounted on the counterweight mounting base (803). (806) The membrane paper adsorption clamping arm (804) is fixedly mounted on the mounting wheel (806). Hollow gears (807) are fixedly mounted on each of the mounting wheels (806). Two sets of transmission gears (808) are rotatably mounted inside the counterweight mounting base (803). The two sets of transmission gears (808) mesh with the two sets of hollow gears (807). A clamping arm rotation drive motor (809) is fixedly mounted on the counterweight mounting base (803). The output shaft of the clamping arm rotation drive motor (809) is fixedly mounted on a set of transmission gears (808).

6. The joining device for producing a veneer-plastic film composite board according to claim 5, characterized in that: The membrane paper bonding mechanism (8) further includes a hollow guide rod (810), a connecting rod (811), a negative pressure ventilation manifold (812), and a flexible tube (813). The hollow guide rod (810) is fixedly installed on the membrane paper suction cup (805). The hollow guide rod (810) is movably inserted into the membrane paper adsorption clamping arm (804). The connecting rod (811) is fixedly installed at the upper end of the hollow guide rod (810). The negative pressure ventilation manifold (812) is fixedly installed on the counterweight mounting base (803). Flexible tubes (813) are installed at both ends of the negative pressure ventilation manifold (812). One end of the flexible tube (813) is fixedly installed on the connecting rod (811).

7. The joining device for producing a veneer-plastic film composite board according to claim 6, characterized in that: The film-paper bonding mechanism (8) further includes a second sliding block (814), a movable spindle (815), a first movable groove (816), a second movable groove (817), a second hinge rod (818), a telescopic drive support (819), a telescopic drive connecting rod (820), a guide post (821), a guide groove (822), a telescopic drive motor (823), a second lead screw (824), and a second nut (825). The second sliding block (814) is arranged in an array inside the film-paper adsorption clamping arm (804). The components are fixedly connected by a movable spindle (815), which is movably inserted into the membrane paper adsorption clamping arm (804). The movable spindle (815) is movably inserted into the mounting wheel (806) and the hollow gear (807). The movable spindle (815) has a first movable groove (816) arranged in an array, and the hollow guide rod (810) is inserted into the first movable groove (816). The membrane paper adsorption clamping arm (804) has a second movable groove (817) arranged in an array, and the second sliding block (814) is rotatably mounted on it. A second hinge rod (818) is inserted into a second movable slot (817). The second hinge rod (818) is rotatably mounted on the lower side of the connecting rod (811). A telescopic drive support (819) is provided at one end of the counterweight mounting base (803). Two sets of telescopic drive connecting rods (820) are fixedly mounted on the lower side of the telescopic drive support (819). The telescopic drive connecting rods (820) are rotatably mounted in the movable spindle (815). Two sets of telescopic drive connecting rods (820) are fixedly mounted on the upper end of the telescopic drive support (819). The guide post (821) has two sets of guide grooves (822) on the counterweight mounting base (803). The guide post (821) is inserted into the guide groove (822). A second nut (825) is fixedly installed at the center of the upper end of the telescopic drive support (819). A telescopic drive motor (823) is fixedly installed in the counterweight mounting base (803). A second lead screw (824) is fixedly installed on the output shaft of the telescopic drive motor (823). The second nut (825) is threaded onto the second lead screw (824).

8. The joining device for producing a veneer-plastic film composite board according to claim 1, characterized in that: The film paper hot pressing and shaping mechanism (9) further includes a second double-head motor (902), a third lead screw (903), a hot pressing moving guide seat (904), a hot pressing sliding guide rod (905), a third nut (906), and a shaping mounting arm (907). The second double-head motor (902) is fixedly mounted on the hot pressing mechanism moving frame (901), and the third lead screw (903) is fixedly mounted on the output shaft of the second double-head motor (902). The hot pressing mechanism moving frame (901) is fixedly mounted on the hot pressing mechanism moving guide seat (904). The hot-press moving guide seat (904) is mounted on the central working mounting frame (6). A pressure sensor is provided on the upper side of the hot-press moving guide seat (904). Hot-press sliding guide rods (905) are movably inserted at both ends of the hot-press moving guide seat (904). A third nut (906) is fixedly installed at the lower end of the hot-press sliding guide rod (905). The third nut (906) is threaded onto the third lead screw (903). A shaping mounting arm (907) is fixedly installed on the hot-press sliding guide rod (905). A main pressure roller (908) is rotatably installed on the shaping mounting arm (907).

9. A joining device for producing a veneer-plastic film composite board according to claim 8, characterized in that: The film paper hot pressing and shaping mechanism (9) also includes a heat-gathering ring (909), an auxiliary shaping roller (911), a second cylinder (912), and an anti-slip limit frame (913). The heat-gathering ring (909) is fixedly installed on the lower side of the shaping mounting arm (907). An electric heating tube (910) is fixedly installed inside the heat-gathering ring (909). The auxiliary shaping roller (911) is rotatably installed at both ends of the heat-gathering ring (909). The outer side of the auxiliary shaping roller (911) is flush with the outer side of the main roller (908). The second cylinder (912) is fixedly installed on the central working mounting frame (6). The output shaft of the second cylinder (912) is fixedly installed on the lower side of the hot pressing mechanism moving frame (901). The anti-slip limit frame (913) is fixedly installed on the film paper carrier (5).

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