A paper surface sizing device

Abstract

The present application relates to paper manufacturing technical field, specifically to a kind of paper surface sizing device, including gluing support, first gluing guide roller is rotatably arranged on the gluing support, second gluing guide roller is rotatably arranged below the first gluing guide roller, third gluing guide roller is rotatably arranged in the right side of the first gluing guide roller, fourth gluing guide roller is rotatably arranged below the third gluing guide roller;First L-shaped support plate, second L-shaped support plate are symmetrically arranged on the gluing support, glue outlet module is fixed on the top of the first L-shaped support plate, the top of second L-shaped support plate, first glue conveying pipe, second glue conveying pipe are connected first gluing module, second gluing module respectively in the glue outlet module, and the first gluing module, second gluing module are all located below glue outlet device.The paper surface sizing device of the present application can evenly apply glue to the surface of paper.

Description

Technical Field

[0001] This invention relates to the field of paper manufacturing technology, and more specifically to a paper surface sizing device. Background Technology

[0002] Sizing is an important step in the paper manufacturing process. It improves the properties of paper by coating the paper surface with a layer of sizing agent, such as increasing the paper's water resistance and surface strength. This technology is widely used in the production of cultural paper, packaging paper, and special-purpose paper.

[0003] The existing paper surface sizing device has the following problems: 1. During the roller coating process, after the coating roller comes into contact with the glue, it is then coated onto the paper surface by rotating. This not only wastes glue, but also results in poor uniformity of glue coating on the paper surface; 2. During roller coating, parameters such as the paper sheet tension and the distance between the coating roller and the paper cannot be adjusted specifically. Summary of the Invention

[0004] In view of this, the present invention provides a paper surface sizing device that can uniformly apply glue to the surface of paper.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: The present invention provides a paper surface sizing device, including a sizing support, a first sizing guide roller rotatably mounted on the sizing support, a second sizing guide roller rotatably mounted below the first sizing guide roller, a third sizing guide roller rotatably mounted to the right of the first sizing guide roller, and a fourth sizing guide roller rotatably mounted below the third sizing guide roller. The adhesive application bracket is provided with a first L-shaped support plate and a second L-shaped support plate symmetrically arranged. An adhesive dispensing module is fixed on the top of the first L-shaped support plate and the top of the second L-shaped support plate. The adhesive dispensing module is connected to the first adhesive application module and the second adhesive application module through the first adhesive supply pipe and the second adhesive supply pipe, respectively. The first adhesive application module and the second adhesive application module are both located below the adhesive dispensing device. The first glue application module includes a first glue application box, which is movably disposed between a first L-shaped support plate and a second L-shaped support plate. A first portal frame is provided on the top of the first glue application box, and a plurality of first rotating shafts are rotatably disposed on the first portal frame. The bottom end of the first rotating shaft extends downward into the interior of the first glue application box, and a first transmission gear is fixed on the first rotating shaft. The first transmission gears mesh with each other. A first glue applicator is fixed at the bottom end of the first rotating shaft. A plurality of first glue inlet holes are provided at one end of the first glue applicator, and the other end extends downward to the outside of the first glue applicator box. A first glue applicator plate is fixed at that end. The first glue applicator plate has a hollow structure. A first glue applicator pad is fixed below the first glue applicator plate. A plurality of first glue applicator holes are provided on the first glue applicator pad. The first glue applicator holes extend upward into the hollow structure of the first glue applicator plate. The second glue application module includes a second glue application box, which is movably disposed between the first L-shaped support plate and the second L-shaped support plate. A second portal-shaped support frame is provided on the top of the second glue application box, and a plurality of second rotating shafts are rotatably disposed on the second portal-shaped support frame. The bottom end of the second rotating shaft extends downward into the interior of the second glue application box, and a second transmission gear is fixed on the second rotating shaft. The second transmission gears mesh with each other. A second glue applicator is fixed at the bottom of the second rotating shaft. A plurality of second glue inlet holes are provided at one end of the second glue applicator, and the other end extends downward to the outside of the second glue applicator box. A second glue applicator disc is fixed at that end. The second glue applicator disc has a hollow structure. A second glue applicator pad is fixed below the second glue applicator disc. A plurality of second glue applicator holes are provided on the second glue applicator pad. The second glue applicator holes extend upward into the hollow structure of the second glue applicator disc.

[0006] As an improvement: a first connecting rod is fixed on the rear side of the first glue application box, and a second connecting rod is fixed on its front side; A first sliding groove is provided on the first L-shaped support plate at a position opposite to the first connecting rod, and the first connecting rod is slidably disposed inside the first sliding groove. A second sliding groove is provided on the second L-shaped support plate at a position opposite to the second connecting rod, and the second connecting rod is slidably disposed inside the second sliding groove. A first support plate is provided at the top of the first sliding groove. The first support plate is fixed to the first L-shaped support plate. A first telescopic cylinder is fixed vertically downward on the first support plate. A first limiting frame is fixed on the piston rod of the first telescopic cylinder. The first connecting rod is slidably locked inside the first limiting frame. A second support plate is provided at the top of the second sliding groove. The second support plate is fixed to the second L-shaped support plate. A second telescopic cylinder is fixed vertically downward on the second support plate. A first support plate is fixed on the piston rod of the second telescopic cylinder. A first adjusting cylinder is provided horizontally on the first support plate. The piston rod of the first adjusting cylinder is fixedly connected to the second connecting rod.

[0007] As an improvement: a third connecting rod is fixed on the rear side of the second glue application box, and a fourth connecting rod is fixed on its front side; A third sliding groove is provided on the first L-shaped support plate at a position opposite to the third connecting rod, and the third connecting rod is slidably disposed inside the third sliding groove. A fourth sliding groove is provided on the second L-shaped support plate at a position opposite to the fourth connecting rod, and the fourth connecting rod is slidably disposed inside the fourth sliding groove. A third support plate is provided at the top of the third sliding groove. The third support plate is fixed to the first L-shaped support plate. A third telescopic cylinder is fixed vertically downward on the third support plate. A second support plate is fixed on the piston rod of the third telescopic cylinder. A second adjusting cylinder is fixed horizontally on the second support plate. The piston rod of the second adjusting cylinder is fixedly connected to the third connecting rod. A fourth support plate is provided at the top of the fourth sliding groove. The fourth support plate is fixed to the second L-shaped support plate. A fourth telescopic cylinder is fixed vertically downward on the fourth support plate. A second limiting frame is fixed on the piston rod of the fourth telescopic cylinder. The fourth connecting rod is slidably locked inside the second limiting frame.

[0008] As an improvement, a first limiting module and a second limiting module are respectively provided above the first glue application guide roller and above the third glue application guide roller.

[0009] As an improvement: the first limiting module includes a first limiting cylinder and a second limiting cylinder. The first limiting cylinder is horizontally disposed on the rear side of the adhesive application bracket, and a first adjusting limiting plate is fixed on the piston rod of the first limiting cylinder. The second limiting cylinder is horizontally disposed on the front side of the adhesive application bracket, and a second adjusting limiting plate is fixed on the piston rod of the second limiting cylinder.

[0010] As an improvement: the second limiting module includes a third limiting cylinder and a fourth limiting cylinder. The third limiting cylinder is horizontally disposed on the rear side of the adhesive application bracket, and a third adjusting limiting plate is fixed on the piston rod of the third limiting cylinder. The fourth limiting cylinder is horizontally disposed on the front side of the adhesive application bracket, and a fourth adjusting limiting plate is fixed on the piston rod of the fourth limiting cylinder.

[0011] As an improvement, the fourth adhesive application guide roller is movably mounted on an adjustment module.

[0012] As an improvement: the adjustment module includes a fifth sliding groove and a sixth sliding groove; The fifth sliding groove is opened on the rear side of the adhesive application bracket. A fifth support plate is provided at the top of the fifth sliding groove. A fifth telescopic cylinder is provided vertically downward on the fifth support plate. A third support plate is fixed on the piston rod of the fifth telescopic cylinder. The sixth sliding groove is opened on the front side of the adhesive application bracket. A sixth support plate is provided at the top of the sixth sliding groove. A sixth telescopic cylinder is provided vertically downward on the sixth support plate. A fourth support plate is fixed on the piston rod of the sixth telescopic cylinder. The fourth adhesive application guide roller is rotatably positioned between the third support plate and the fourth support plate.

[0013] As an improvement: the dispensing module includes a dispensing box, which is fixed between a first L-shaped support plate and a second L-shaped support plate; A dispensing cylinder is vertically downward installed at the top of the dispensing box. A dispensing plate is fixed on the piston rod of the dispensing cylinder. A booster pump is fixed on the side of the dispensing box. The booster pump is connected to the bottom of the dispensing box through a booster pipe. The bottom of the discharge box is connected to the first glue application box and the second glue application box through the first glue delivery pipe and the second glue delivery pipe, respectively, and the first electric valve and the second electric valve are respectively provided on the first glue delivery pipe and the second glue delivery pipe; A glue filling pipe is also provided at the bottom of the discharge box, and a third electric valve is provided on the glue filling pipe.

[0014] As an improvement: a third portal support frame is provided above the first portal support frame, and a first drive motor is provided vertically downward on the third portal support frame, with the rotor of the first drive motor fixedly connected to the first rotating shaft; A fourth portal support frame is provided above the second portal support frame, and a second drive motor is provided vertically downward on the fourth portal support frame. The rotor of the second drive motor is fixedly connected to the second rotating shaft.

[0015] As an improvement: a fifth portal frame is fixed to the right side of the adhesive application bracket, and an exhaust funnel is horizontally fixed on the fifth portal frame. The exhaust funnel is connected to an external air-cooled dryer through an air supply pipe.

[0016] In summary, the present invention has the following technical effects: 1. By rotating and moving the first and second glue applicator discs back and forth, glue can be evenly applied to the surface of the paper. 2. By adjusting the height of the fourth glue application guide roller, the paper tension can be adjusted, so that the paper is always kept in a certain tension state, preventing wrinkles from forming on the paper during the coating process, thereby ensuring the uniformity of glue application. 3. The external air cooling dryer blows cooled and dried air through the exhaust funnel to the surface of the glued paper, thereby quickly cooling the glue on the paper surface, allowing the glue to adhere to the paper surface quickly and evenly, and reducing the influence of external environmental factors. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0018] Figure 1 A schematic diagram of the overall structure of a paper surface sizing device. Figure 1 ; Figure 2 for Figure 1 Schematic diagram of part A in the middle; Figure 3 A schematic diagram of the overall structure of a paper surface sizing device. Figure 2 ; Figure 4 for Figure 3 Schematic diagram of Part B in the middle section; Figure 5 A cross-sectional view of a paper surface sizing apparatus; Figure 6 This is a schematic diagram of the overall structure of the first adhesive application module; Figure 7 A cross-sectional view of the first adhesive application module; Figure 8 This is a schematic diagram of the overall structure of the second adhesive application module; Figure 9 A cross-sectional view of the second adhesive application module; The components include: 1. Glue application bracket; 2. First glue application guide roller; 3. Second glue application guide roller; 4. Third glue application guide roller; 5. Fourth glue application guide roller; 6. First L-shaped support plate; 7. Second L-shaped support plate; 8. First glue delivery pipe; 9. Second glue delivery pipe; 10. First glue application box; 11. First portal frame support; 12. First rotating shaft; 13. First transmission gear; 14. First glue application pipe; 15. First glue inlet hole; 16. First glue application disc; 17. First glue application gasket; 18. First glue application hole; 19. Second glue application box; 20. Second portal frame support; 21. ... 22. Second drive gear; 23. Second adhesive tube; 24. Second adhesive inlet; 25. Second adhesive disc; 26. Second adhesive pad; 27. First connecting rod; 28. Second connecting rod; 29. ​​First sliding groove; 30. Second sliding groove; 31. First support plate; 32. First telescopic cylinder; 33. First limiting frame; 34. Second support plate; 35. Second telescopic cylinder; 36. First support upright plate; 37. First adjusting cylinder; 38. Third connecting rod; 39. Fourth connecting rod; 40. Third sliding groove; 41. Fourth sliding groove; 42. 43. Third support plate; 44. Third telescopic cylinder; 45. Second support upright plate; 46. Second adjusting cylinder; 47. Fourth support plate; 48. Fourth telescopic cylinder; 49. Second limiting frame; 50. First heating wire; 51. Second heating wire; 52. First limiting cylinder; 53. Second limiting cylinder; 54. First adjusting limiting plate; 55. Second adjusting limiting plate; 56. Third limiting cylinder; 57. Third adjusting limiting plate; 58. Fourth adjusting limiting plate; 59. Fifth sliding groove; 60. Sixth sliding groove; 61. 62. Fifth support plate; 63. Sixth support plate; 64. Fifth telescopic cylinder; 65. Third support upright plate; 66. Sixth telescopic cylinder; 67. Fourth support upright plate; 68. Discharge box; 69. Glue discharge cylinder; 70. Glue discharge plate; 71. Booster pump; 72. Booster pipe; 73. Glue replenishment pipe; 74. Third portal frame support; 75. First drive motor; 76. Fourth portal frame support; 77. Second drive motor; 78. Fifth portal frame support; 79. Exhaust funnel; 80. Pressure sensor; 81. Second glue application hole; 82. Paper; 83. Glue application liner. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, 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.

[0020] The following describes exemplary embodiments of the present invention in conjunction with specific circumstances: Please refer to Figures 1-9 The present invention provides a paper surface sizing device, including a sizing support 1, a first sizing guide roller 2 rotatably disposed on the sizing support 1, a second sizing guide roller 3 rotatably disposed below the first sizing guide roller 2, a third sizing guide roller 4 rotatably disposed to the right of the first sizing guide roller 2, and a fourth sizing guide roller 5 rotatably disposed below the third sizing guide roller 4. A first L-shaped support plate 6 and a second L-shaped support plate 7 are symmetrically arranged on the glue application bracket 1. A glue dispensing module is fixed on the top of the first L-shaped support plate 6 and the top of the second L-shaped support plate 7. The glue dispensing module is connected to the first glue application module and the second glue application module through the first glue supply pipe 8 and the second glue supply pipe 9, respectively. The first glue application module and the second glue application module are both located below the glue dispensing device. Please refer to Figure 6 , Figure 7 The first adhesive application module includes a first adhesive application box 10, which is movably disposed between a first L-shaped support plate 6 and a second L-shaped support plate 7. A first portal frame 11 is provided on the top of the first adhesive application box 10. Several first rotating shafts 12 are rotatably mounted on the first portal frame 11, with the bottom ends of the first rotating shafts 12 extending downwards into the interior of the first adhesive application box 10. First transmission gears 13 are fixed on the first rotating shafts 12, and the first transmission gears 13 mesh with each other. A first adhesive application tube 14 is fixed to the bottom end of the first rotating shaft 12. One end of the first glue application tube 14 is provided with a plurality of first glue inlet holes 15. The glue in the first glue application box 10 can be discharged into the interior of the first glue application tray 16 through the first glue inlet holes 15. The other end extends downward to the outside of the first glue application box 10, and the first glue application tray 16 is fixed at this end. The first glue application tray 16 has a hollow structure. The first glue application pad 17 is fixed below the first glue application tray 16. A plurality of first glue application holes 18 are provided on the first glue application pad 17. The first glue application holes 18 extend upward into the hollow structure of the first glue application tray 16. Please refer to Figure 8. Figure 9The second adhesive application module includes a second adhesive application box 19, which is movably disposed between the first L-shaped support plate 6 and the second L-shaped support plate 7. A second portal frame 20 is provided on the top of the second adhesive application box 19. Several second rotating shafts 21 are rotatably mounted on the second portal frame 20, with the bottom ends of the second rotating shafts 21 extending downwards into the interior of the second adhesive application box 19. Second transmission gears 22 are fixed on the second rotating shafts 21, and the second transmission gears 22 mesh with each other. A second adhesive application tube 23 is fixed to the bottom end of the second rotating shafts 21. One end of the second glue application tube 23 is provided with several second glue inlet holes 24. The glue in the second glue application box 19 can be discharged into the interior of the second glue application tray 25 through the second glue inlet holes 24. The other end extends downward to the outside of the second glue application box 19, and the second glue application tray 25 is fixed at this end. The second glue application tray 25 has a hollow structure. A second glue application pad 26 is fixed below the second glue application tray 25. Several second glue application holes 80 are provided on the second glue application pad 26. The second glue application holes 80 extend upward into the hollow structure of the second glue application tray 25.

[0021] A first connecting rod 27 is fixed to the rear side of the first glue application box 10, and a second connecting rod 28 is fixed to its front side. A first sliding groove 29 is formed on the first L-shaped support plate 6 at a position opposite to the first connecting rod 27, and the first connecting rod 27 is slidably disposed inside the first sliding groove 29. A second sliding groove 30 is formed on the second L-shaped support plate 7 at a position opposite to the second connecting rod 28, and the second connecting rod 28 is slidably disposed inside the second sliding groove 30. A first support plate 31 is provided at the top of the first sliding groove 29, and the first support plate 31 is fixed to the first L-shaped support plate 6. A first telescopic cylinder 32 is vertically fixed downward on the first support plate 31. A first limiting frame 33 is fixed on the piston rod of the first telescopic cylinder 32. The first connecting rod 27 is slidably locked inside the first limiting frame 33. A second supporting plate 34 is provided on the top of the second sliding groove 30. The second supporting plate 34 is fixed on the second L-shaped supporting plate 7. A second telescopic cylinder 35 is fixed vertically downward on the second supporting plate 34. A first supporting plate 36 is fixed on the piston rod of the second telescopic cylinder 35. A first adjusting cylinder 37 is horizontally provided on the first supporting plate 36. The piston rod of the first adjusting cylinder 37 is fixedly connected to the second connecting rod 28. During the operation of the first adjusting cylinder 37, the first connecting rod 27 can slide back and forth within the first limiting frame 33.

[0022] A third connecting rod 38 is fixed to the rear side of the second glue application box 19, and a fourth connecting rod 39 is fixed to its front side. A third sliding groove 40 is formed on the first L-shaped support plate 6 at a position opposite to the third connecting rod 38, and the third connecting rod 38 is slidably disposed inside the third sliding groove 40. A fourth sliding groove 41 is formed on the second L-shaped support plate 7 at a position opposite to the fourth connecting rod 39, and the fourth connecting rod 39 is slidably disposed inside the fourth sliding groove 41. A third support plate 42 is provided at the top of the third sliding groove 40, and the third support plate 42 is fixed to the first L-shaped support plate 6. A third telescopic cylinder 43 is vertically fixed downward on the third support plate 42. A second support plate 44 is fixed to the piston rod of the third telescopic cylinder 43. A second adjusting cylinder 45 is horizontally fixed to the second support plate 44. The piston rod of the second adjusting cylinder 45 is fixedly connected to the third connecting rod 38. A fourth support plate 46 is provided at the top of the fourth sliding groove 41. The fourth support plate 46 is fixed to the second L-shaped support plate 7. A fourth telescopic cylinder 47 is vertically fixed to the fourth support plate 46. A second limiting frame 48 is fixed to the piston rod of the fourth telescopic cylinder 47. The fourth connecting rod 39 is slidably locked inside the second limiting frame 48. During the operation of the second adjusting cylinder 45, the fourth connecting rod 39 can slide back and forth within the second limiting frame 48.

[0023] In this embodiment, by rotating the first glue applicator 16 and moving the second glue applicator 25 back and forth, glue can be evenly applied to the surface of the paper. A glue applicator liner 82 is provided below the first glue applicator box 10 and the second glue applicator box 19. During the paper conveying process, the paper is located between the first glue applicator box 10, the second glue applicator box 19 and the glue applicator liner 82. The glue applicator liner 82 can provide a certain support for the paper during glue application.

[0024] In this embodiment, the first adhesive pad 17 and the second adhesive pad 26 can be made of relatively soft materials such as sponge or silicone, so that they have a better fit with the paper surface and prevent damage to the paper during the coating process.

[0025] In this embodiment, a plurality of first heating wires 49 are provided inside the first glue application box 10, and a plurality of second heating wires 50 are provided inside the second glue application box 19. When the external temperature is low, the glue in the first glue application box 10 and the second glue application box 19 can be heated by the first heating wires 49 and the second heating wires 50 respectively, so as to prevent the glue properties (flowability, viscosity, etc.) from being affected by low temperature, thereby affecting the uniformity of glue application.

[0026] In this embodiment, the height of the first glue application box 10 can be adjusted by the first telescopic cylinder 32 and the second telescopic cylinder 35, and the height of the second glue application box 19 can be adjusted by the third telescopic cylinder 43 and the fourth telescopic cylinder 47. This allows the glue application device to adapt to the glue application requirements of paper of different thicknesses. When applying glue to paper of different thicknesses, the first glue application pad 17 and the second glue application pad 26 can be well attached to the paper surface, improving the uniformity of glue application.

[0027] Please refer to Figures 1-4 A first limiting module and a second limiting module are respectively provided above the first glue application guide roller 2 and the third glue application guide roller 4. The first limiting module includes a first limiting cylinder 51 and a second limiting cylinder 52. The first limiting cylinder 51 is horizontally arranged on the rear side of the glue application bracket 1, and a first adjusting limiting plate 53 is fixed on the piston rod of the first limiting cylinder 51. The second limiting cylinder 52 is horizontally arranged on the front side of the glue application bracket 1, and a second adjusting limiting plate 54 is fixed on the piston rod of the second limiting cylinder 52.

[0028] The second limiting module includes a third limiting cylinder 55 and a fourth limiting cylinder 56. The third limiting cylinder 55 is horizontally disposed on the rear side of the adhesive application bracket 1, and a third adjusting limiting plate 57 is fixed on the piston rod of the third limiting cylinder 55. The fourth limiting cylinder 56 is horizontally disposed on the front side of the adhesive application bracket 1, and a fourth adjusting limiting plate 58 is fixed on the piston rod of the fourth limiting cylinder 56.

[0029] In this embodiment, the first limiting module and the second limiting module can limit the paper during the paper conveying process. Specifically, the first limiting cylinder 51 and the second limiting cylinder 52 cause the first adjusting limiting plate 53 and the second adjusting limiting plate 54 to be attached to the front and rear sides of the paper inlet section. The third limiting cylinder 55 and the fourth limiting cylinder 56 cause the third adjusting limiting plate 57 and the fourth adjusting limiting plate 58 to be attached to the front and rear sides of the paper outlet section. This limits the paper and prevents it from shifting during the conveying and gluing process, thereby affecting the uniformity of the gluing.

[0030] Please refer to Figure 1 , Figure 3The adjustment module includes a fifth sliding groove 59 and a sixth sliding groove 60. The fifth sliding groove 59 is located on the rear side of the adhesive application bracket 1. A fifth support plate 61 is provided at the top of the fifth sliding groove 59. A fifth telescopic cylinder 63 is vertically downward provided on the fifth support plate 61. A third support plate 64 is fixed on the piston rod of the fifth telescopic cylinder 63. The sixth sliding groove 60 is located on the front side of the adhesive application bracket 1. A sixth support plate 62 is provided at the top of the sixth sliding groove 60. A sixth telescopic cylinder 65 is vertically downward provided on the sixth support plate 62. A fourth support plate 66 is fixed on the piston rod of the sixth telescopic cylinder 65. The fourth adhesive application guide roller 5 is rotatably disposed between the third support plate 64 and the fourth support plate 66.

[0031] In this embodiment, by adjusting the height of the fourth glue-applying guide roller 5, that is, by adjusting the height of the fifth support plate 61 and the sixth support plate 62 through the fifth telescopic cylinder 63 and the sixth telescopic cylinder 65 respectively, the height of the fourth glue-applying guide roller 5 can be adjusted. The tension of the paper during the paper feeding process can be adjusted by changing the height of the fourth glue-applying guide roller 5, so that the paper is always kept in a certain tension state, preventing wrinkles from forming on the paper during the coating process, thereby ensuring the uniformity of glue application.

[0032] Please refer to Figure 1 , Figure 3 as well as Figure 5 The dispensing module includes a dispensing box 67, which is fixed between a first L-shaped support plate 6 and a second L-shaped support plate 7. A dispensing cylinder 68 is vertically downwardly mounted on the top of the dispensing box, and a dispensing plate 69 is fixed on the piston rod of the dispensing cylinder 68. A booster pump 70 is fixed on the side of the dispensing box, and the booster pump 70 is connected to the bottom of the dispensing box through a booster pipe 71. The bottom of the dispensing box 67 is connected to a first glue delivery pipe 8 and a second glue delivery pipe 9, respectively, and a first electric valve and a second electric valve are respectively mounted on the first glue delivery pipe 8 and the second glue delivery pipe 9. A replenishing pipe 72 is also mounted at the bottom of the dispensing box 67, and a third electric valve is mounted on the replenishing pipe 72.

[0033] In this embodiment, a pressure sensor 79 is provided at the bottom of the glue dispensing box. The pressure sensor 79 can sense the internal pressure of the glue dispensing box. During the glue dispensing process, the glue dispensing plate 69 gradually moves downward. By cooperating with the booster pump 70, the pressure inside the glue dispensing box is regulated to ensure that the pressure inside the glue dispensing box is constant. This allows the glue in the dispensing box 67 to be squeezed out with a relatively stable pressure, thereby ensuring the uniformity of glue application. The glue dispensing plate 69 can scrape off the glue on the inner wall of the glue dispensing box to prevent it from sticking to the inner wall of the glue dispensing box.

[0034] Please refer to Figures 6-9 A third portal support frame 73 is provided above the first portal support frame 11. A first drive motor 74 is provided vertically downward on the third portal support frame 73, and the rotor of the first drive motor 74 is fixedly connected to the first rotating shaft 12. A fourth portal support frame 75 is provided above the second portal support frame 20. A second drive motor 76 is provided vertically downward on the fourth portal support frame 75, and the rotor of the second drive motor 76 is fixedly connected to the second rotating shaft 21.

[0035] In this embodiment, the rotor of the first drive motor 74 is fixedly connected to one of the first rotating shafts 12. The first drive motor 74 can drive the first rotating shaft 12 to rotate, thereby driving the first drive gear 13 corresponding to the first rotating shaft 12 to rotate. Since the first drive gears 13 are meshed with each other, the rotation of one of the first drive gears 13 can drive the other drive gears to rotate. The transmission method of the second drive gear 22 is the same as that of the first drive gear. That is, the rotor of the second drive motor 76 is fixedly connected to one of the second rotating shafts 21. The second drive motor 76 can drive the second rotating shaft 21 to rotate, thereby driving the second drive gear 22 corresponding to the second rotating shaft 21 to rotate. Since the second drive gears 22 are meshed with each other, the rotation of one of the second drive gears 22 can drive the other drive gears to rotate.

[0036] Please refer to Figure 3 A fifth portal frame 77 is fixed to the right side of the glue application bracket 1. An exhaust funnel 78 is horizontally fixed on the fifth portal frame 77. The exhaust funnel 78 is connected to an external air cooling dryer via an air supply pipe. In this embodiment, the external air cooling dryer blows cooled and dried air through the exhaust funnel 78 onto the surface of the glued paper, thereby rapidly cooling the glue on the paper surface. This allows the glue to adhere quickly and evenly to the paper surface, reducing the influence of external environmental factors.

[0037] Working principle: The distance between the first adjusting limit plate 53 and the second adjusting limit plate 54, and the distance between the third adjusting limit plate 57 and the fourth adjusting limit plate 58 are adjusted respectively to make the above distances match the width of the paper 81. The paper 82 to be glued is conveyed above the first glue guiding roller 2 and the third glue guiding roller 4, and after passing the fourth glue guiding roller 5, it is guided to the bottom of the second glue guiding roller 3. During the conveying process, the paper is limited between the first adjusting limit plate 53 and the second adjusting limit plate 54, and between the third adjusting limit plate 57 and the fourth adjusting limit plate 58.

[0038] When the paper 81 is guided to the bottom of the first glue box 10, the first glue-applying backing plate is attached to the paper surface by the first telescopic cylinder 32 and the second telescopic cylinder 35. The glue dispensing cylinder 68 is activated to move downward. With the cooperation of the booster pump 70, the glue in the glue dispensing box is discharged into the interior of the first glue box 10 through the first glue delivery pipe 8 at a constant pressure, and then discharged into the interior of the first glue dispensing plate 16 through the first glue inlet hole 15. Subsequently, it is discharged through the first glue dispensing hole 18. The first drive motor 74 is activated to drive the first glue dispensing plate 16 to rotate. At the same time, the first adjusting cylinder 37 drives the first glue box 10 to move back and forth on the paper surface, thereby evenly coating the glue onto the surface of the paper 81.

[0039] When the paper 81 is guided to the bottom of the second glue box 19, the second glue-applying backing plate is attached to the paper surface by the third telescopic cylinder 43 and the fourth telescopic cylinder 47. The glue dispensing cylinder 68 is activated to move downward. With the cooperation of the booster pump 70, the glue in the glue dispensing box is discharged into the interior of the second glue box 19 at a constant pressure through the second glue delivery pipe 9, and then discharged into the interior of the second glue dispensing disc 25 through the second glue inlet hole 24. Subsequently, it is discharged through the second glue dispensing hole 80. The second drive motor 76 is activated to drive the second glue dispensing disc 25 to rotate. At the same time, the second adjusting cylinder 45 drives the second glue box 19 to move back and forth on the paper surface, thereby evenly coating the glue onto the surface of the paper 81.

[0040] When the glued paper 81 is guided to the exhaust funnel 78, the dry cold air blown out by the exhaust funnel 78 will quickly cool and dry the glue on the surface of the paper 81, so that the glue can be quickly and firmly attached to the surface of the paper.

[0041] During the gluing process, the height of the fourth gluing guide roller 5 is adjusted by the fifth telescopic cylinder 63 and the sixth telescopic cylinder 65 to keep the paper 81 at a certain tension.

[0042] Finally, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0043] The specific embodiments provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A paper surface sizing device, characterized in that, It includes a glue application bracket, on which a first glue application guide roller is rotatably mounted, a second glue application guide roller is rotatably mounted below the first glue application guide roller, a third glue application guide roller is rotatably mounted to the right of the first glue application guide roller, and a fourth glue application guide roller is rotatably mounted below the third glue application guide roller. The adhesive application bracket is provided with a first L-shaped support plate and a second L-shaped support plate symmetrically arranged. An adhesive dispensing module is fixed on the top of the first L-shaped support plate and the top of the second L-shaped support plate. The adhesive dispensing module is connected to the first adhesive application module and the second adhesive application module through the first adhesive supply pipe and the second adhesive supply pipe, respectively. The first adhesive application module and the second adhesive application module are both located below the adhesive dispensing device. The first glue application module includes a first glue application box, which is movably disposed between a first L-shaped support plate and a second L-shaped support plate. A first portal frame is provided on the top of the first glue application box, and a plurality of first rotating shafts are rotatably disposed on the first portal frame. The bottom end of the first rotating shaft extends downward into the interior of the first glue application box, and a first transmission gear is fixed on the first rotating shaft. The first transmission gears mesh with each other. A first glue applicator is fixed at the bottom end of the first rotating shaft. A plurality of first glue inlet holes are provided at one end of the first glue applicator, and the other end extends downward to the outside of the first glue applicator box. A first glue applicator plate is fixed at that end. The first glue applicator plate has a hollow structure. A first glue applicator pad is fixed below the first glue applicator plate. A plurality of first glue applicator holes are provided on the first glue applicator pad. The first glue applicator holes extend upward into the hollow structure of the first glue applicator plate. The second glue application module includes a second glue application box, which is movably disposed between the first L-shaped support plate and the second L-shaped support plate. A second portal-shaped support frame is provided on the top of the second glue application box, and a plurality of second rotating shafts are rotatably disposed on the second portal-shaped support frame. The bottom end of the second rotating shaft extends downward into the interior of the second glue application box, and a second transmission gear is fixed on the second rotating shaft. The second transmission gears mesh with each other. A second glue applicator is fixed at the bottom of the second rotating shaft. A plurality of second glue inlet holes are provided at one end of the second glue applicator, and the other end extends downward to the outside of the second glue applicator box. A second glue applicator disc is fixed at that end. The second glue applicator disc has a hollow structure. A second glue applicator pad is fixed below the second glue applicator disc. A plurality of second glue applicator holes are provided on the second glue applicator pad. The second glue applicator holes extend upward into the hollow structure of the second glue applicator disc.

2. The paper surface sizing device as described in claim 1, characterized in that, A first connecting rod is fixed on the rear side of the first glue application box, and a second connecting rod is fixed on its front side; A first sliding groove is provided on the first L-shaped support plate at a position opposite to the first connecting rod, and the first connecting rod is slidably disposed inside the first sliding groove. A second sliding groove is provided on the second L-shaped support plate at a position opposite to the second connecting rod, and the second connecting rod is slidably disposed inside the second sliding groove. A first support plate is provided at the top of the first sliding groove. The first support plate is fixed to the first L-shaped support plate. A first telescopic cylinder is fixed vertically downward on the first support plate. A first limiting frame is fixed on the piston rod of the first telescopic cylinder. The first connecting rod is slidably locked inside the first limiting frame. A second support plate is provided at the top of the second sliding groove. The second support plate is fixed to the second L-shaped support plate. A second telescopic cylinder is fixed vertically downward on the second support plate. A first support plate is fixed on the piston rod of the second telescopic cylinder. A first adjusting cylinder is provided horizontally on the first support plate. The piston rod of the first adjusting cylinder is fixedly connected to the second connecting rod.

3. The paper surface sizing device as described in claim 1, characterized in that, A third connecting rod is fixed on the rear side of the second glue application box, and a fourth connecting rod is fixed on its front side. A third sliding groove is provided on the first L-shaped support plate at a position opposite to the third connecting rod, and the third connecting rod is slidably disposed inside the third sliding groove. A fourth sliding groove is provided on the second L-shaped support plate at a position opposite to the fourth connecting rod, and the fourth connecting rod is slidably disposed inside the fourth sliding groove. A third support plate is provided at the top of the third sliding groove. The third support plate is fixed to the first L-shaped support plate. A third telescopic cylinder is fixed vertically downward on the third support plate. A second support plate is fixed on the piston rod of the third telescopic cylinder. A second adjusting cylinder is fixed horizontally on the second support plate. The piston rod of the second adjusting cylinder is fixedly connected to the third connecting rod. A fourth support plate is provided at the top of the fourth sliding groove. The fourth support plate is fixed to the second L-shaped support plate. A fourth telescopic cylinder is fixed vertically downward on the fourth support plate. A second limiting frame is fixed on the piston rod of the fourth telescopic cylinder. The fourth connecting rod is slidably locked inside the second limiting frame.

4. The paper surface sizing device as described in claim 1, characterized in that, A first limiting module and a second limiting module are respectively provided above the first glue application guide roller and above the third glue application guide roller.

5. The paper surface sizing device as described in claim 4, characterized in that, The first limiting module includes a first limiting cylinder and a second limiting cylinder. The first limiting cylinder is horizontally disposed on the rear side of the adhesive application bracket, and a first adjusting limiting plate is fixed on the piston rod of the first limiting cylinder. The second limiting cylinder is horizontally disposed on the front side of the adhesive application bracket, and a second adjusting limiting plate is fixed on the piston rod of the second limiting cylinder.

6. The paper surface sizing device as described in claim 4, characterized in that, The second limiting module includes a third limiting cylinder and a fourth limiting cylinder. The third limiting cylinder is horizontally disposed on the rear side of the adhesive application bracket, and a third adjusting limiting plate is fixed on the piston rod of the third limiting cylinder. The fourth limiting cylinder is horizontally disposed on the front side of the adhesive application bracket, and a fourth adjusting limiting plate is fixed on the piston rod of the fourth limiting cylinder.

7. The paper surface sizing device as described in claim 1, characterized in that, The fourth adhesive application guide roller is movably mounted on an adjustment module.

8. The paper surface sizing apparatus as described in claim 7, characterized in that, The adjustment module includes a fifth sliding groove and a sixth sliding groove; The fifth sliding groove is opened on the rear side of the adhesive application bracket. A fifth support plate is provided at the top of the fifth sliding groove. A fifth telescopic cylinder is provided vertically downward on the fifth support plate. A third support plate is fixed on the piston rod of the fifth telescopic cylinder. The sixth sliding groove is opened on the front side of the adhesive application bracket. A sixth support plate is provided at the top of the sixth sliding groove. A sixth telescopic cylinder is provided vertically downward on the sixth support plate. A fourth support plate is fixed on the piston rod of the sixth telescopic cylinder. The fourth adhesive application guide roller is rotatably positioned between the third support plate and the fourth support plate.

9. The paper surface sizing device as described in claim 1, characterized in that, The dispensing module includes a dispensing box, which is fixed between a first L-shaped support plate and a second L-shaped support plate. A dispensing cylinder is vertically downward installed at the top of the dispensing box. A dispensing plate is fixed on the piston rod of the dispensing cylinder. A booster pump is fixed on the side of the dispensing box. The booster pump is connected to the bottom of the dispensing box through a booster pipe. The bottom of the discharge box is connected to the first glue application box and the second glue application box through the first glue delivery pipe and the second glue delivery pipe, respectively, and the first electric valve and the second electric valve are respectively provided on the first glue delivery pipe and the second glue delivery pipe; A glue filling pipe is also provided at the bottom of the discharge box, and a third electric valve is provided on the glue filling pipe.

10. The paper surface sizing apparatus as described in claim 1, characterized in that, A third portal support frame is provided above the first portal support frame, and a first drive motor is provided vertically downward on the third portal support frame. The rotor of the first drive motor is fixedly connected to the first rotating shaft. A fourth portal support frame is provided above the second portal support frame, and a second drive motor is provided vertically downward on the fourth portal support frame. The rotor of the second drive motor is fixedly connected to the second rotating shaft.

11. The paper surface sizing apparatus as described in claim 1, characterized in that, A fifth portal frame is fixed to the right side of the adhesive application bracket, and an exhaust funnel is horizontally fixed on the fifth portal frame. The exhaust funnel is connected to an external air-cooled dryer through an air supply pipe.

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