Automatic paper glue brushing and stacking machine

Abstract

The application discloses paper automatic glue brushing stacking machine and relates to the technical field of paper glue brushing, which solves the problem that the edge part of the paper brushed with glue is prone to wrinkle or wavy edge and more easily causes paper tearing. The paper automatic glue brushing stacking machine comprises a conveying frame, a stacked paper storage support installed on one side of the conveying frame, a paper suction feeding device installed on the top of the stacked paper storage support and extending to one side of the top of the conveying frame, a side support body installed on the side of the conveying frame and extending to the top, a lead screw lifting device installed on the side of the side support body and above the conveying frame, and a paper automatic glue brushing device installed on the bottom of the lead screw lifting device through screws. In the application, the paper glue brushing operation can be adjusted in multiple ways, the flatness during the glue brushing of the paper is improved, and the paper glue brushing operation is faster. Meanwhile, the edge of the paper is not prone to warping due to the too fast drying of the glue, and the bubbles generated during the glue brushing are smaller.

Description

Technical Field

[0001] This invention relates to the field of paper gluing technology, specifically to an automatic paper gluing and stacking machine. Background Technology

[0002] Paper sizing (i.e., surface sizing) is an important step in the papermaking process. Its main purpose is to improve the performance of paper by coating the paper surface with sizing agents. Commonly used sizing agents include starch, polyvinyl alcohol (PVA), and carboxymethyl cellulose (CMC). The most common sizing method is roller sizing, which involves filling the surface of a roller with the sizing agent and then applying the sizing agent to the paper by rotating the roller.

[0003] However, this paper gluing equipment has the following drawbacks in practical use:

[0004] The main reasons for paper curling and bending when applying glue to paper using existing paper gluing equipment are uneven fiber expansion after the paper absorbs water and paper deformation caused by the tension during glue application. The uneven fiber expansion after water absorption can be addressed by adjusting the glue mixture and heating it during application. Paper deformation caused by tension during glue application is generally addressed by pressing down on the paper (edges or corners). However, in practice, pressing down on the paper can easily cause deformation of the pressed portion. Furthermore, as the glue first fully contacts the paper's edge and expands inwards, the edge rapidly absorbs water and expands, but is then "held back" by the fully glued, dry center, resulting in wrinkles or wavy edges. This increases the likelihood of tearing at the paper's edges, hindering the normal glue application process.

[0005] In traditional methods, when applying glue to paper, the edges tend to absorb too much glue, forming glue clumps. The rolling glue brush then pushes the excess glue from the edges outwards, causing glue overflow or adhesion to the conveyor belt. When the conveyor belt carrying subsequent sheets of paper has this glue residue, the paper may bulge or curl at the edges, affecting the evenness of the glue application. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic paper gluing and stacking machine to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This invention provides an automatic paper gluing and stacking machine, comprising: a conveyor frame; a stacked paper storage bracket installed on one side of the conveyor frame; paper adsorption and feeding devices installed on both sides of the top of the stacked paper storage bracket and extending to one side of the top of the conveyor frame; a side support body installed on the side of the conveyor frame and extending to the top; a screw lifting device installed on the side of the side support body and located above the conveyor frame; and an automatic paper gluing device installed at the bottom of the screw lifting device by screws.

[0009] The automatic paper gluing device includes: a semi-circular heating structure mounted on the bottom of the lead screw lifting device by screws; a rotating gluing structure mounted on the side of the semi-circular heating structure and extending into the interior of the semi-circular heating structure; a central inner liner mounted on the inner side of the rotating gluing structure; an outward expansion and telescopic structure mounted inside the central inner liner and extending outward; a central gluing component snapped and fixed to the outside of the outward expansion and telescopic structure; and an edge gluing component snapped and fixed to the outside of the rotating gluing structure.

[0010] The intermediate glue-applying component and the edge glue-applying component are provided in multiples, and the outward expansion and telescopic structure is driven by a micro drive source installed inside the rotating glue-applying structure.

[0011] As a preferred embodiment of the present invention, a belt conveyor is installed on the top of the conveyor frame, paper is conveyed on the top of the belt conveyor, and an arc-shaped unloading belt is installed on one side of the discharge port of the conveyor frame.

[0012] As a preferred embodiment of the present invention, the paper adsorption feeding device includes:

[0013] A horizontal slide rail system is installed at the top edge of the stacked paper storage rack. A horizontal feeding slide is installed on the top of the horizontal slide rail system, and a bent metal arm is installed on the top of the horizontal feeding slide by screws.

[0014] A linear electric cylinder is installed at the center of the top of the bent metal arm. The output end of the linear electric cylinder is connected to a lifting slide, and vertical guide rods are installed on both sides of the top of the lifting slide.

[0015] The vertical guide rod is slidably connected to the bent metal arm.

[0016] As a preferred embodiment of the present invention, a recessed metal plate is installed at the bottom of the lifting slide by screws, and a plurality of vacuum suction nozzles are installed in the included angle portion inside the recessed metal plate. Paper is adsorbed and fixed at the bottom of the vacuum suction nozzles, and the paper located inside the stacked paper storage bracket is transported and moved to the top of the belt conveyor.

[0017] As a preferred embodiment of the present invention, the lead screw lifting device includes:

[0018] A lead screw system is installed inside the side support body, and a lifting metal block is connected to the outside of the lead screw system via ball bearings. The lifting metal block is slidably connected inside the side support body.

[0019] A hydraulic drive source is installed on top of the lifting metal block. The output end of the hydraulic drive source is connected to a lower metal plate, and linear guide rods are installed on both sides of the top of the lower metal plate.

[0020] The linear guide rod is slidably connected inside the guide plate, which is installed at the bottom of the lifting metal block. A semi-circular heating structure is installed at the center of the bottom of the lower metal plate by screws.

[0021] As a preferred embodiment of the present invention, the semi-circular heating structure includes:

[0022] A semi-circular frame is installed on the bottom of the lower metal plate by screws. Guide bearings are installed on the front and rear sides of the semi-circular frame. A rotating adhesive brushing structure installed on one side of the semi-circular frame is installed through the guide bearing.

[0023] A heating aluminum tube is installed inside the top of the semi-circular frame. The heating aluminum tube is bent and connected to an external power source via a power interface.

[0024] The heating aluminum tube is located on the outside of the rotating adhesive brushing structure.

[0025] As a preferred embodiment of the present invention, the rotating adhesive brushing structure includes:

[0026] A rotary drive source is installed on one side of the semi-circular frame. The output end of the rotary drive source is connected to a synchronous belt via a synchronous pulley. The synchronous belt is movably disposed on the outside of the semi-circular frame.

[0027] A linear shaft is connected to the inner side of the synchronous belt via a synchronous pulley. The linear shaft is movably mounted inside a guide bearing via ball bearings mounted on its outer side.

[0028] The linear shaft has an inner liner installed on its inner side. Edge rollers are installed on the outer sides of the linear shaft on the left and right sides of the inner liner. An edge gluing component is snapped and fixed on the outer side of the edge rollers. An outward expansion and telescopic structure extending to the outer side is installed inside the edge rollers. A micro drive source is installed at the eccentric part inside the edge rollers.

[0029] As a preferred embodiment of the present invention, the outward expansion and telescopic structure includes:

[0030] The first gear is connected to the output end of the micro drive source, and the bottom of the first gear is meshed with a second gear. Both the first gear and the second gear are movably disposed inside the edge roller.

[0031] A central rotating rod is connected to the second gear. The central rotating rod is rotatably connected to the center inside the central inner liner. A movable metal block is installed on the outside of the central rotating rod, and multiple conical protrusions are installed on the outside of the movable metal block.

[0032] A telescopic rod abuts against the side of the conical protrusion, the telescopic rod being slidably connected inside the intermediate inner liner and extending to the outside of the intermediate inner liner.

[0033] The telescopic rod and the conical protrusion are provided in multiple ways;

[0034] A return spring is connected to the inner wall of the middle inner liner and is sleeved on the outside of the telescopic rod.

[0035] In a preferred embodiment of the present invention, an outer connecting block is sleeved on the shaft of the telescopic rod located outside the intermediate inner liner, and the width of the reserved groove opened inside the outer connecting block is greater than the width of the outer shaft of the telescopic rod.

[0036] The outer connecting block is equipped with an arc-shaped plate on its top, which is positioned between the two edge rollers. A middle adhesive brushing component is snapped and fixed to the outer side of the arc-shaped plate.

[0037] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0038] 1. In an automatic paper gluing and stacking machine, a central gluing component structure with outward expansion and contraction is incorporated. This allows the central gluing component to move to the top, parallel, or bottom side of the edge gluing component, depending on the gluing operation. This ensures that the center of the paper is glued first, followed by the edges. This process allows the center of the paper to be moistened and naturally expanded, while the expansion of the edges is buffered by the fixed center, reducing the probability of edge curling or wrinkling. Furthermore, the glue spreads naturally from the center to the edges, requiring only a thin layer at the edges, resulting in more even glue application and less overflow. Simultaneously, the central and edge gluing components, operating on the same horizontal plane, can perform a single gluing process, achieving higher efficiency in paper gluing.

[0039] It should be noted that after applying glue to the center of the paper, the middle area of ​​the paper contacts and fixes itself to the substrate first, forming an "anchor point". When the paper edges are then applied and bonded, the paper edges are less likely to lift due to the glue drying too quickly, resulting in a smoother overall bond, fewer air bubbles, and higher paper flatness.

[0040] 2. In the automatic paper gluing and stacking machine, vacuum adsorption is used to automatically adsorb and feed stacked papers one by one, conveying them to the top of the belt conveyor. This achieves sequential paper feeding and ensures a tight fit with the vacuum adsorption nozzle, preventing paper slippage, shifting, or overlapping. Furthermore, it allows the paper to lie flat on the belt conveyor, reducing floating and curling caused by airflow or static electricity, facilitating positioning in subsequent gluing processes. The machine provides stable and reliable paper gripping and is suitable for flattened paper transport.

[0041] 3. In the automatic paper gluing and stacking machine, when the paper is glued using the middle and edge gluing components, a bent heating aluminum tube generates heat upon energization to immediately heat the paper after gluing. This rapidly evaporates the moisture in the glue, allowing the paper to instantly set its shape while flat, avoiding uneven shrinkage and wrinkles caused by natural drying. Simultaneously, the glue flows better when heated, penetrating more evenly into the paper fibers, creating a tighter bond between paper layers and effectively improving the paper's flatness and stiffness.

[0042] 4. In an automatic paper gluing and stacking machine, during the gluing process, elastically set rubber pressure blocks can press down and position the corners of the paper edges one by one. This ensures that the gluing process is not prone to deviation or bending, guaranteeing the smooth progress of the gluing operation. Furthermore, it provides variable elastic pressure, with gentle clamping force that gradually increases with compression, unlike rigid pressure blocks that can generate excessive impact or hard squeezing instantly. This protects the paper surface from pressure marks, indentations, or damage, preventing injury to the paper to be glued. Attached Figure Description

[0043] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0044] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0045] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0046] Figure 2 This is a top view of the overall structure of the invention;

[0047] Figure 3 This is a schematic diagram of the overall main view of the present invention;

[0048] Figure 4 This is a schematic diagram of the connection between the paper adsorption feeding device and the conveyor frame of the present invention;

[0049] Figure 5 This is a schematic diagram of the conveyor frame of the present invention;

[0050] Figure 6 This is a schematic diagram of the connection between the stacked paper storage rack and the paper adsorption and feeding device of the present invention.

[0051] Figure 7 This is a schematic diagram of the connection between the side support body and the automatic paper gluing device of the present invention;

[0052] Figure 8 This is a schematic diagram of the connection between the screw lifting device and the rubber pressure block of the present invention;

[0053] Figure 9 This is a bottom view of the automatic paper gluing device of the present invention;

[0054] Figure 10 This is the present invention. Figure 9 Schematic diagram of the structure viewed from the middle II-II' section;

[0055] Figure 11 This is a schematic diagram of the connection between the rotary adhesive brushing structure and the outward expansion and telescopic structure of the present invention;

[0056] Figure 12 This is the present invention. Figure 11 A schematic diagram of the structure viewed in section ii-ii'.

[0057] Figure 13 This is the present invention. Figure 12 Enlarged structural diagram of region A in the middle;

[0058] Figure 14 This is an exploded view of the connection between the linear shaft and the intermediate adhesive application component of the present invention;

[0059] Figure 15 This is a cross-sectional structural diagram showing the connection between the rotary adhesive brushing structure and the outward expansion and telescopic structure of the present invention;

[0060] In the picture:

[0061] 10. Conveyor frame; 101. Belt conveyor; 102. Arc-shaped unloading belt; 20. Stacking paper storage rack;

[0062] 30. Paper adsorption and feeding device; 301. Horizontal slide rail system; 302. Horizontal feeding slide; 303. Bending metal arm; 304. Linear electric cylinder; 305. Lifting slide; 3051. Recessed metal plate; 3052. Vacuum adsorption nozzle; 306. Vertical guide rod;

[0063] 40. Side support structure;

[0064] 50. Screw jacking device; 501. Screw system; 502. Lifting metal block; 503. Hydraulic drive source; 504. Lower metal plate; 505. Linear guide rod; 506. Guide plate;

[0065] 60. Automatic paper gluing device; 601. Semi-circular heating structure; 602. Rotary gluing structure; 603. Middle inner liner; 604. Outward expansion and telescopic structure; 6040. Miniature drive source; 605. Middle gluing component; 606. Edge gluing component;

[0066] 6011, Semi-circular frame; 6012, Guide bearing; 6013, Heating aluminum tube; 6014, Power interface;

[0067] 6021. Rotary drive source; 6022. Synchronous belt; 6023. Linear shaft; 6024. Ball bearing; 6025. Edge roller;

[0068] 6041, First gear; 6042, Second gear; 6043, Intermediate rotating rod; 6044, Movable metal block; 6045, Conical protrusion; 6046, Telescopic rod; 60461, External connecting block; 60462, Arc-shaped plate; 6047, Return spring;

[0069] 70. Side mounting plate; 701. Longitudinal mounting rod; 702. Lower base; 703. Vibration slide plate; 704. Rubber pressure block; 705. Buffer spring. Detailed Implementation

[0070] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0071] Example 1

[0072] Please see Figures 1-15 The automatic paper gluing and stacking machine includes a conveyor frame 10; a stacked paper storage rack 20 installed on one side of the conveyor frame 10; paper adsorption and feeding devices 30 installed on both sides of the top of the stacked paper storage rack 20 and extending to one side of the top of the conveyor frame 10; a side support body 40 installed on the side of the conveyor frame 10 and extending to the top; a screw lifting device 50 installed on the side of the side support body 40 and located above the conveyor frame 10; and an automatic paper gluing device 60 installed at the bottom of the screw lifting device 50 by screws, the automatic paper gluing device 60 including: a semi-circular heating structure 601 installed at the bottom of the screw lifting device 50 by screws; and a paper automatic gluing device 60 installed at the bottom of the screw lifting device 50 by screws. A rotating adhesive application structure 602 is mounted on the side of the semi-circular heating structure 601 and extends into the interior of the semi-circular heating structure 601; a middle inner liner 603 is mounted inside the rotating adhesive application structure 602; an outward expansion and telescopic structure 604 is mounted inside the middle inner liner 603 and extends outward; a middle adhesive application component 605 is snapped and fixed to the outside of the outward expansion and telescopic structure 604; and an edge adhesive application component 606 is snapped and fixed to the outside of the rotating adhesive application structure 602. Multiple middle adhesive application components 605 and edge adhesive application components 606 are provided. The outward expansion and telescopic structure 604 is driven by a miniature drive source 6040 mounted inside the rotating adhesive application structure 602.

[0073] It should be noted that a belt conveyor 101 is installed on the top of the conveyor frame 10, and paper is conveyed on the top of the belt conveyor 101. An arc-shaped unloading belt 102 is installed on one side of the discharge port of the conveyor frame 10.

[0074] The working principle is as follows: When applying glue to the cardboard, the paper stored inside the stacked paper storage rack 20 is first adsorbed one by one by the paper adsorption feeding device 30 and placed on the belt conveyor 101. The belt conveyor 101 then transports the paper to the side of the side support body 40. Next, by activating the screw lifting device 50, the automatic paper glue application device 60 is driven to move vertically up and down, adhering to the surface of the paper to apply glue. During the paper glue application, the outward expansion and telescopic structure 604 is activated, causing multiple intermediate glue application components 605 located in the middle section to expand outward (synchronously), so that the intermediate glue application components 605 move to the outside of the edge glue application components 606. At this time, by activating the rotating glue application structure 602, the intermediate glue application components 605 can be rotated to apply glue to the middle part of the paper first. After the glue application to the middle part of the paper is completed, the middle glue application component 605 can be stored on the outer surface of the middle inner tube 603 by activating the outward expansion and telescopic structure 604. At this time, the edge glue application component 606 can be rotated by activating the rotating glue application structure 602 to apply glue to the edge part of the paper.

[0075] It's important to note that by applying glue to the center of the paper first, followed by the edges, the expansion of the paper edges is buffered by the already fixed center, reducing the probability of the edges lifting or wrinkling. Simultaneously, the glue spreads naturally from the center to the edges, requiring only a thin layer at the edges, resulting in more even application and less overflow. Applying glue to the center first ensures the central area of ​​the paper contacts and fixes itself to the substrate, forming an "anchor point." When the edges are then glued and bonded, they are less likely to lift due to the glue drying too quickly, resulting in a smoother overall bond with fewer air bubbles.

[0076] For details, please refer to the following: Figure 4 and Figure 6 The paper adsorption and feeding device 30 includes a horizontal slide rail system 301, which is installed at the top edge of the stacked paper storage rack 20. A horizontal feeding slide 302 is installed on the top of the horizontal slide rail system 301, and a bent metal arm 303 is installed on the top of the horizontal feeding slide 302 by screws. A linear electric cylinder 304 is installed at the center of the top of the bent metal arm 303. The output end of the linear electric cylinder 304 is connected to a lifting slide 305. Vertical guide rods 306 are installed on both sides of the top of the lifting slide 305, and the vertical guide rods 306 are slidably connected to the bent metal arm 303.

[0077] In this solution, a recessed metal plate 3051 is installed at the bottom of the lifting slide 305 by screws. Multiple vacuum suction nozzles 3052 are installed in the included angle portion inside the recessed metal plate 3051. Paper is adsorbed and fixed at the bottom of the vacuum suction nozzles 3052, and the paper located inside the stacked paper storage bracket 20 is transported and moved to the top of the belt conveyor 101.

[0078] In the automatic paper gluing and stacking machine of the present invention, when the paper is fed to the top of the belt conveyor 101, the horizontal slide rail system 301 is activated to drive the concave metal plate 3051 and the vacuum suction nozzle 3052 to move horizontally to the top of the paper or the belt conveyor 101, thereby realizing the transfer of the paper. When the paper is adsorbed and fixed, the linear electric cylinder 304 is activated to drive the concave metal plate 3051 and the vacuum suction nozzle 3052 connected to the output end of the linear electric cylinder 304 to move up and down, close to the paper or the belt conveyor 101, to adsorb or release the paper.

[0079] For details, please refer to the following: Figure 7 and Figure 8The screw lifting device 50 includes a screw system 501, which is installed inside the side support body 40. A lifting metal block 502 is connected to the outside of the screw system 501 via ball bearings. The lifting metal block 502 is slidably connected inside the side support body 40. A hydraulic drive source 503 is installed on the top of the lifting metal block 502. The output end of the hydraulic drive source 503 is connected to a lower metal plate 504. Linear guide rods 505 are installed on both sides of the top of the lower metal plate 504. The linear guide rods 505 are slidably connected inside a guide plate 506. The guide plate 506 is installed at the bottom of the lifting metal block 502. A semi-circular heating structure 601 is installed at the center of the bottom of the lower metal plate 504 via screws.

[0080] In the automatic paper gluing and stacking machine of the present invention, when the paper is being glued, the lead screw system 501 is activated, driving the lifting metal block 502 connected to the outside of the lead screw system 501 via ball bearings to move up and down, thus determining the position and height of the semi-circular heating structure 601. Simultaneously, the semi-circular heating structure 601 can be moved up and down by activating the hydraulic drive source 503, further determining and adjusting its position and height.

[0081] For details, please refer to the following: Figure 9 and Figure 10 The semi-circular heating structure 601 includes a semi-circular frame 6011, which is installed on the bottom of the lower metal plate 504 by screws. Guide bearings 6012 are installed on the front and rear sides of the semi-circular frame 6011. A rotating adhesive brushing structure 602 installed on one side of the semi-circular frame 6011 is installed through the guide bearings 6012. A heating aluminum tube 6013 is installed on the inner top of the semi-circular frame 6011. The heating aluminum tube 6013 is bent and connected to an external power source through a power interface 6014. The heating aluminum tube 6013 is located on the outside of the rotating adhesive brushing structure 602.

[0082] In the automatic paper gluing and stacking machine of the present invention, the design of the heating aluminum tube 6013 can heat the glued part of the paper in time, which can quickly evaporate the excess water in the glue, allowing the paper to be instantly shaped in a flat state, avoiding uneven shrinkage and wrinkles caused by natural drying.

[0083] For details, please refer to the following: Figure 11 , Figure 12 and Figure 14The rotary adhesive application structure 602 includes a rotary drive source 6021, which is mounted on one side of a semi-circular frame 6011. The output end of the rotary drive source 6021 is connected to a synchronous belt 6022 via a synchronous pulley. The synchronous belt 6022 is movably positioned on the outside of the semi-circular frame 6011. A linear shaft 6023 is connected to the inside of the synchronous belt 6022 via a synchronous pulley. The linear shaft 6023 is connected to the outside of a ball bearing 6024. The movable part is located inside the guide bearing 6012. A middle inner liner 603 is installed on the inner side of the linear shaft 6023. Edge rollers 6025 are installed on the left and right sides of the middle inner liner 603 and installed on the outer side of the linear shaft 6023. An edge glue brushing component 606 is snapped and fixed on the outer side of the edge rollers 6025. An outward expansion telescopic structure 604 extending to the outside is installed inside the edge rollers 6025. A micro drive source 6040 is installed at the eccentric part inside the edge rollers 6025.

[0084] In the automatic paper gluing and stacking machine of the present invention, when the middle gluing component 605 and the edge gluing component 606 are driven to apply glue to the paper, the rotary drive source 6021 is activated, driving the synchronous belt 6022 connected to the outer side of the output end of the rotary drive source 6021 via a synchronous pulley to operate, causing the linear shaft 6023 connected to the inner side of the synchronous belt 6022 via the synchronous pulley to rotate. When the linear shaft 6023 rotates, it can drive the edge roller 6025 and the middle inner tube 603 mounted on its outer side to rotate, driving the edge gluing component 606 and the middle gluing component 605 mounted on their outer sides to rotate, thus performing glue application on the paper.

[0085] For details, please refer to the following: Figure 12 , Figure 13 and Figure 15The outwardly expanding and retractable structure 604 includes a first gear 6041, which is connected to the output end of a micro drive source 6040. A second gear 6042 is meshed with the bottom of the first gear 6041. Both the first gear 6041 and the second gear 6042 are movably disposed inside the edge roller 6025. A middle rotating rod 6043 is connected to the second gear 6042 and is rotatably connected to the center inside the middle inner liner 603. A movable metal block is installed on the outer side of the middle rotating rod 6043. 6044, multiple conical protrusions 6045 are installed on the outer side of the movable metal block 6044; telescopic rod 6046, the telescopic rod 6046 abuts against the side of the conical protrusions 6045, the telescopic rod 6046 is slidably connected to the inside of the middle inner liner 603 and extends to the outside of the middle inner liner 603, wherein multiple telescopic rods 6046 and conical protrusions 6045 are provided; return spring 6047, the return spring 6047 is connected to the inner wall of the middle inner liner 603, and the return spring 6047 is sleeved on the outside of the telescopic rod 6046.

[0086] In this design, the telescopic rod 6046 is fitted with an outer connecting block 60461 on the shaft outside the middle inner liner 603. The width of the reserved groove inside the outer connecting block 60461 is greater than the width of the outer shaft of the telescopic rod 6046. An arc-shaped plate 60462 is installed on the top of the outer connecting block 60461. The arc-shaped plate 60462 is positioned between two edge rollers 6025. The outer side of the arc-shaped plate 60462 is snapped and fixed with a middle adhesive brushing component 605.

[0087] In the automatic paper gluing and stacking machine of the present invention, when adjusting the position of the intermediate gluing component 605 to perform gluing operations on the middle or edge of the paper, the micro drive source 6040 can be activated to drive the first gear 6041 connected to the output end of the micro drive source 6040 to rotate, causing the second gear 6042 meshing with the outer side of the first gear 6041 to rotate. Simultaneously, when the second gear 6042 rotates, the intermediate rotating rod 6043 connected to its side rotates, driving the movable metal block 6044 and the conical protrusion 6045 mounted on the outer side of the intermediate rotating rod 6043 to rotate. At this time, through the inclined portion of the surface of the conical protrusion 6045, the telescopic rod 6046, which abuts against the conical protrusion 6045, can move telescopically within the intermediate inner liner 603. Adjusting the telescopic rod 6046's outer side, connected to the arc plate 60462 via the outer connecting block 60461, and the intermediate gluing component 605 mounted on its outer side, allows for telescopic movement, thus adjusting the position of the intermediate gluing component 605.

[0088] It should be noted that the design of the return spring 6047 ensures that the conical protrusion 6045 and the telescopic rod 6046 are always in contact; the arc plate 60462 is slidably connected to the inner side of the edge roller 6025; the design of the reserved groove inside the outer connecting block 60461 ensures that the arc plate 60462 can rotate at a certain angle and extend and retract at a certain position, ensuring that the multiple intermediate glue-applying parts 605 and the paper are more closely attached.

[0089] Example 2

[0090] For details, please refer to the following: Figure 8 Side mounting plates 70 are installed on the front and rear sides of the bottom of the lower metal plate 504. A longitudinal mounting rod 701 is fixed to the side of the side mounting plate 70 by nuts. A lower base 702 is fixed to the outside of the longitudinal mounting rod 701 by a positioning block connected by threads. A vibrating slide plate 703 is slidably connected to the bottom of the lower base 702. A rubber pressure block 704 is clamped and fixed to the bottom of the vibrating slide plate 703. A buffer spring 705 is sleeved on the shaft part at the top angle of the vibrating slide plate 703. The buffer spring 705 is connected to the bottom angle of the lower base 702.

[0091] In the automatic paper gluing and stacking machine of the present invention, when applying glue to the paper, the edge portion of the paper located at the bottom of the rubber pressure block 704 is pressed down by moving the rubber pressure block 704 up and down. Simultaneously, the rubber pressure block 704, through the design of the buffer spring 705, has a certain degree of flexibility, providing variable elastic pressure to protect the paper surface from pressure marks, indentations, or damage. At the same time, the buffer spring 705 allows the rubber pressure block 704 to float and adhere to the paper surface, achieving uniform localized pressing and avoiding problems such as inaccurate positioning or shifting of the paper due to localized suspension.

[0092] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0093] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0094] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. An automatic paper gluing and stacking machine, characterized in that, include: Conveyor frame (10); stacked paper storage rack (20) installed on one side of the conveyor frame (10); Paper adsorption and feeding devices (30) are installed on both sides of the top of the stacked paper storage rack (20) and extend to one side of the top of the conveyor frame (10); side support bodies (40) are installed on the side of the conveyor frame (10) and extend to the top; screw lifting devices (50) are installed on the side of the side support bodies (40) and located above the conveyor frame (10); and automatic paper gluing devices (60) are installed at the bottom of the screw lifting devices (50) by screws. The automatic paper gluing device (60) includes: a semi-circular heating structure (601) installed at the bottom of the screw lifting device (50) by screws; a rotating gluing structure (602) installed on the side of the semi-circular heating structure (601) and extending into the interior of the semi-circular heating structure (601); a middle inner liner (603) installed inside the rotating gluing structure (602); an outward expansion and telescopic structure (604) installed inside the middle inner liner (603) and extending outward; a middle gluing component (605) snapped and fixed to the outside of the outward expansion and telescopic structure (604); and an edge gluing component (606) snapped and fixed to the outside of the rotating gluing structure (602). The middle glue-applying component (605) and the edge glue-applying component (606) are provided in multiples, and the outward expansion telescopic structure (604) is driven by a micro drive source (6040) installed inside the rotating glue-applying structure (602).

2. The automatic paper gluing and stacking machine according to claim 1, characterized in that: A belt conveyor (101) is installed on the top of the conveyor frame (10), and paper is conveyed on the top of the belt conveyor (101). An arc-shaped unloading belt (102) is installed on one side of the discharge port of the conveyor frame (10).

3. The automatic paper gluing and stacking machine according to claim 2, characterized in that: The paper adsorption feeding device (30) includes: A horizontal slide rail system (301) is installed at the top edge of the stacked paper storage rack (20). A horizontal feeding slide (302) is installed on the top of the horizontal slide rail system (301). A bent metal arm (303) is installed on the top of the horizontal feeding slide (302) by screws. A linear electric cylinder (304) is installed at the center of the top of the bent metal arm (303). The output end of the linear electric cylinder (304) is connected to a lifting slide (305). Vertical guide rods (306) are installed on both sides of the top of the lifting slide (305). The vertical guide rod (306) is slidably connected to the bent metal arm (303).

4. The automatic paper gluing and stacking machine according to claim 3, characterized in that: The bottom of the lifting slide (305) is fitted with a recessed metal plate (3051) by screws. Multiple vacuum suction nozzles (3052) are installed in the included angle portion inside the recessed metal plate (3051). Paper is adsorbed and fixed at the bottom of the vacuum suction nozzles (3052), and the paper located inside the stacked paper storage bracket (20) is transported and moved to the top of the belt conveyor (101).

5. The automatic paper gluing and stacking machine according to claim 1, characterized in that: The screw jack (50) includes: A lead screw system (501) is installed inside the side support body (40). A lifting metal block (502) is connected to the outside of the lead screw system (501) by ball bearings. The lifting metal block (502) is slidably connected inside the side support body (40). A hydraulic drive source (503) is installed on the top of the lifting metal block (502). The output end of the hydraulic drive source (503) is connected to a lower metal plate (504). Linear guide rods (505) are installed on both sides of the top of the lower metal plate (504). The linear guide rod (505) is slidably connected inside the guide plate (506), the guide plate (506) is installed at the bottom of the lifting metal block (502), and a semi-circular heating structure (601) is installed at the center of the bottom of the lower metal plate (504) by screws.

6. The automatic paper gluing and stacking machine according to claim 5, characterized in that: The semi-circular heating structure (601) includes: A semi-circular frame (6011) is installed on the bottom of the lower metal plate (504) by screws. Guide bearings (6012) are installed on the front and rear sides of the semi-circular frame (6011). A rotating adhesive brushing structure (602) installed on one side of the semi-circular frame (6011) is provided inside the guide bearing (6012). A heating aluminum tube (6013) is installed on the inner top of the semi-circular frame (6011). The heating aluminum tube (6013) is bent and connected to an external power source via a power interface (6014). The heating aluminum tube (6013) is located on the outside of the rotating adhesive brushing structure (602).

7. The automatic paper gluing and stacking machine according to claim 6, characterized in that: The rotary adhesive brushing structure (602) includes: A rotary drive source (6021) is installed on one side of the semi-circular frame (6011). The output end of the rotary drive source (6021) is connected to a synchronous belt (6022) via a synchronous pulley. The synchronous belt (6022) is movably disposed on the outside of the semi-circular frame (6011). A linear shaft (6023) is connected to the inner side of the synchronous belt (6022) via a synchronous pulley. The linear shaft (6023) is movably disposed inside the guide bearing (6012) via an outerly mounted ball bearing (6024). The linear shaft (6023) has an inner liner (603) installed on its inner side. The inner liner (603) has edge rollers (6025) installed on the outer side of the linear shaft (6023) on its left and right sides. An edge glue brushing component (606) is snapped and fixed on the outer side of the edge rollers (6025). An outward expansion telescopic structure (604) extending to the outer side is installed inside the edge rollers (6025). A micro drive source (6040) is installed at the eccentric part inside the edge rollers (6025).

8. The automatic paper gluing and stacking machine according to claim 7, characterized in that: The outward expansion and telescopic structure (604) includes: The first gear (6041) is connected to the output end of the micro drive source (6040), and the bottom of the first gear (6041) is meshed with the second gear (6042). The first gear (6041) and the second gear (6042) are both movably disposed inside the edge roller (6025). An intermediate rotating rod (6043) is connected to the second gear (6042). The intermediate rotating rod (6043) is rotatably connected to the center inside the intermediate inner liner (603). A movable metal block (6044) is installed on the outside of the intermediate rotating rod (6043). A plurality of conical protrusions (6045) are installed on the outside of the movable metal block (6044). A telescopic rod (6046) abuts against the side of the conical protrusion (6045), the telescopic rod (6046) is slidably connected to the inside of the intermediate inner liner (603) and extends to the outside of the intermediate inner liner (603). The telescopic rod (6046) and the conical protrusion (6045) are provided in multiple forms; A return spring (6047) is connected to the inner wall of the intermediate inner liner (603) and is sleeved on the outside of the telescopic rod (6046).

9. The automatic paper gluing and stacking machine according to claim 8, characterized in that: The telescopic rod (6046) is fitted with an outer connecting block (60461) on the shaft outside the intermediate inner liner (603). The width of the reserved groove inside the outer connecting block (60461) is greater than the width of the outer shaft of the telescopic rod (6046). The outer connecting block (60461) is equipped with an arc-shaped plate (60462) on its top. The arc-shaped plate (60462) is located between the two edge rollers (6025). The outer side of the arc-shaped plate (60462) is snapped and fixed with an intermediate glue-brushing component (605).

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