Adhesive layer coating device

Abstract

The application discloses a kind of adhesive layer coating devices, the output shaft of second motor is fixedly connected with one end of coating roller, the other end of this coating roller is connected with the driving device of stirring mechanism by a transmission device, a doctor knife is arranged between first guide roller and drying oven, and its both ends are fixedly connected with a horizontal rack with first tooth slot respectively through horizontal through hole, the both ends of glue pressure roller are rotatably connected with a vertical rack with second tooth slot respectively through vertical through hole, a first gear and a second gear are respectively fixedly sleeved on the opposite side of two vertical plates and the both ends of rotating shaft, the first gear is engagedly connected with horizontal rack, the second gear is engagedly connected with vertical rack, and one end of rotating shaft is fixedly connected with the output shaft of a third motor.The adhesive layer coating device of the application can meet the coating requirements of adhesive layers with different thicknesses, improve the applicability of the device, greatly improve the convenience of operation, and improve the consistency of adhesive layer thickness.

Description

Technical Field

[0001] This invention relates to the field of coating apparatus technology, and more particularly to an adhesive coating apparatus. Background Technology

[0002] Protective film is a thin, soft, transparent sheet made of plastic, adhesives, rubber, or other materials. It offers dustproof, scratch-resistant, and flexible protection, and is widely used in the electronics, machinery, and printing industries. During production, a coating device is used to apply an adhesive layer to the surface of the protective film for easy application. A coating machine is a machine used to quantitatively coat liquid materials such as adhesives, coatings, or slurries onto the surface of materials. It is suitable for coating operations in fields such as footwear, electronics, sponges, EVA, PE, and fabrics.

[0003] However, existing coating devices for protective film adhesive layers cannot adapt to different thicknesses of adhesive layers when the coating components of the coating device are fixed. Instead, other models of coating devices must be replaced, resulting in poor applicability of such devices. Summary of the Invention

[0004] The purpose of this invention is to provide an adhesive layer coating apparatus that can meet the coating requirements of adhesive layers of different thicknesses, improve the applicability of the apparatus, greatly improve the convenience of operation, and improve the consistency of adhesive layer thickness.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an adhesive coating device, comprising: a housing, wherein a feed port is provided on one side of the housing and a discharge port is provided on the upper part of the other side of the housing, and a feeding roller and a receiving roller are respectively provided for the feed port and the discharge port, and one end of the receiving roller is fixedly connected to the output shaft of a first motor; A glue storage tank with a stirring mechanism is set at the bottom of the shell. On each side of the glue storage tank, there is a vertical plate with a vertical through hole and a horizontal through hole. A glue pressing roller is set between the two opposing vertical plates and near the feed inlet. A coating roller that is rotatably connected to the vertical plate is set between the glue pressing roller and the glue storage tank. A first guide roller and a second guide roller are set above the glue storage tank and near the discharge outlet. A drying box with a feed inlet is set between the upper and lower distributed first guide roller and second guide roller. The feed inlet is opened on the top wall and bottom wall of the drying box, respectively. A second motor is mounted on the outer wall of the housing. The output shaft of the second motor is fixedly connected to one end of the coating roller. The other end of the coating roller is connected to the drive device of the stirring mechanism through a transmission device. A scraper is positioned between the first guide roller and the drying chamber, with its two ends passing through transverse through holes and fixedly connected to a transverse rack with a first toothed groove. The two ends of the rubber pressure roller each pass through a vertical through hole and are rotatably connected to a vertical rack with a second toothed groove. A rotating shaft parallel to the rubber pressure roller is rotatably connected to two vertical plates. A first gear and a second gear are fixedly mounted on each end of the rotating shaft on opposite sides of the two vertical plates. The first gear meshes with a horizontal rack, and the second gear meshes with a vertical rack. One end of the rotating shaft is fixedly connected to the output shaft of a third motor.

[0006] The following are further improvements to the above technical solution: 1. In the above scheme, the stirring mechanism further includes a drive shaft, a driven shaft, and stirring blades. The drive shaft and the driven shaft are distributed in parallel at intervals inside the glue storage tank, and both of them are provided with a number of stirring blades on their circumferential outer walls.

[0007] 2. In the above scheme, the driving device of the stirring mechanism further includes a driving gear and a driven gear. The driving gear is located outside the glue storage tank and is sleeved and connected to one end of the driving shaft. The other end of the driving shaft is rotatably connected to the inner wall of the glue storage tank. The driven gear, which meshes with the driving gear, is fixedly sleeved on one end of the driven shaft.

[0008] 3. In the above scheme, the transmission device further includes a first transmission wheel, a second transmission wheel, and a transmission belt. The first transmission wheel is installed at the end of the coating roller, the second transmission wheel is disposed at the end of the drive shaft, and the first transmission wheel and the second transmission wheel are connected by a transmission belt.

[0009] 4. In the above scheme, several heating tubes are provided on each of the two opposite inner walls of the drying oven.

[0010] 5. In the above scheme, the heating tubes are arranged at parallel intervals at the top and bottom.

[0011] 6. In the above scheme, the feeding roller and the receiving roller are each connected to the outer wall of the housing through a mounting bracket.

[0012] 7. In the above scheme, each end of the scraper is connected to the transverse rack via a connecting rod, and the connecting rod is slidably connected to the transverse through hole.

[0013] 8. In the above scheme, a guide plate is provided at the bottom of the scraper.

[0014] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The adhesive coating device of the present invention comprises an adhesive pressure roller located above an adhesive storage tank, both ends of which pass through vertical through holes and are rotatably connected to a vertical rack with a second toothed groove. A scraper located between a first guide roller and a drying chamber has both ends passing through horizontal through holes and fixedly connected to a horizontal rack with a first toothed groove. A first gear and a second gear are fixedly mounted on opposite sides of two vertical plates at both ends of a rotating shaft. The first gear meshes with the horizontal rack, and the second gear meshes with the vertical rack. One end of the rotating shaft is fixedly connected to the output shaft of a third motor. Starting the third motor drives the rotating shaft to rotate. With the cooperation of the second gear, the doctor blade can be moved horizontally, thereby adjusting the distance between the doctor blade and the protective film. The adhesive roller can be moved vertically, thereby adjusting the distance between the adhesive roller and the coating roller. This allows for simultaneous adjustment of the positions of the doctor blade and the adhesive roller, meeting the coating requirements of different adhesive layer thicknesses, improving the applicability of the device, achieving synchronous adjustment of the positions of the doctor blade and the coating roller, greatly improving the convenience of operation, and improving the consistency of adhesive layer thickness. It effectively avoids the situation where adjusting the doctor blade and the adhesive roller separately causes different adjustment distances, resulting in variations in adhesive layer thickness.

[0015] 2. The adhesive coating device of the present invention has a second motor whose output shaft is fixedly connected to one end of a coating roller mounted on the outer wall of the housing. The other end of the coating roller is connected to the drive device of the stirring mechanism through a transmission device. A number of stirring blades are arranged on the circumferential outer wall, and the drive shaft and driven shaft are distributed parallel and spaced inside the glue storage tank. The drive gear is located outside the glue storage tank and is fitted to one end of the drive shaft. The other end of the drive shaft is rotatably connected to the inner wall of the glue storage tank. The driven gear meshing with the drive gear is fixedly fitted to one end of the driven shaft. The first transmission wheel is installed at the end of the coating roller, and the second transmission wheel is located at the end of the drive shaft. The first transmission wheel and the second transmission wheel are connected by a transmission belt, so that the stirring blades can more fully stir and mix the adhesive in the glue storage tank, avoiding the drying and clumping caused by being in a static state for a long time, which facilitates the subsequent coating process. Moreover, the second motor drives the stirring mechanism by using the power of the coating roller rotation, which saves resources and reduces costs. Attached Figure Description

[0016] Appendix Figure 1 This is a schematic diagram of the overall structure of the coating apparatus of the present invention from a first-view perspective. Appendix Figure 2 This is a schematic diagram of the overall structure of the coating device of the present invention from a second perspective; Appendix Figure 3 This is a cross-sectional front view of the adhesive coating apparatus of the present invention; Appendix Figure 4 This is a schematic diagram of the internal structure of the adhesive coating device of the present invention; Appendix Figure 5 Appendix to this invention Figure 4 Enlarged view of point A; Appendix Figure 6 This is a partial three-dimensional view of the adhesive coating device of the present invention; Appendix Figure 7 This is a schematic diagram of the internal structure of the glue storage tank of the coating device of the present invention.

[0017] In the above attached diagrams: 1. Shell; 2. Inlet; 3. Outlet; 4. Feeding roller; 5. Receiving roller; 6. First motor; 7. Glue storage tank; 8. Mixing mechanism; 9. Vertical plate; 91. Vertical through hole; 92. Horizontal through hole; 10. Glue pressing roller; 11. Coating roller; 12. First guide roller; 13. Second guide roller; 14. Inlet; 15. Drying oven; 16. Second motor; 17. Transmission device; 18. Scraper; 19. Horizontal rack; 191. First toothed groove; 20. 201. Vertical rack; 202. Second tooth groove; 21. Rotating shaft; 22. First gear; 23. Second gear; 24. Guide plate; 25. Third motor; 26. Drive shaft; 27. Driven shaft; 28. Stirring blade; 29. ​​Drive gear; 30. Driven gear; 31. First transmission wheel; 32. Second transmission wheel; 33. Transmission belt; 34. Heating tube; 35. Mounting bracket; 36. Connecting rod; 37. First support shaft; 38. Second support shaft; 39. Door panel. Detailed Implementation

[0018] In the description of this patent, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, 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 limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this patent based on the specific circumstances.

[0019] The present invention will be further described below with reference to embodiments: Example 1: An adhesive coating device includes: a housing 1, a feed port 2 is provided on one side of the housing 1, and a discharge port 3 is provided on the upper part of the other side of the housing 1. A feed roller 4 and a take-up roller 5 are respectively provided on the feed port 2 and the discharge port 3. One end of the take-up roller 5 is fixedly connected to the output shaft of a first motor 6. The feeding roller 4 provides a protective film to the inside of the outer shell 1 through the feed port 2. The protective film completes the coating of the adhesive layer between the coating roller 11 and the adhesive roller 10. A glue storage tank 7 with a stirring mechanism 8 is set at the bottom of the housing 1. On each side of the glue storage tank 7, there is a vertical plate 9 with a vertical through hole 91 and a horizontal through hole 92. A glue pressing roller 10 is set between the two opposing vertical plates 9 and on the side near the feed inlet 2. A coating roller 11 that is rotatably connected to the vertical plate 9 is set between the glue pressing roller 10 and the glue storage tank 7. A first guide roller 12 and a second guide roller 13 are provided above the glue storage tank 7 and on the side near the discharge port 3. A drying box 15 with a material passage 14 is provided between the first guide roller 12 and the second guide roller 13 distributed above and below. The material passage 14 is respectively opened on the top wall and the bottom wall of the drying box 15. A second motor 16 is mounted on the outer wall of the housing 1. The output shaft of the second motor 16 is fixedly connected to one end of the coating roller 11. The other end of the coating roller 11 is connected to the drive device of the stirring mechanism 8 through a transmission device 17. A scraper 18 is disposed between the first guide roller 12 and the drying box 15. Its two ends pass through the transverse through hole 92 and are fixedly connected to a transverse rack 19 with a first toothed groove 191. The two ends of the rubber pressure roller 10 pass through the vertical through hole 91 and are rotatably connected to a vertical rack 20 with a second toothed groove 201. A rotating shaft 21, parallel to the rubber pressure roller 10, is rotatably connected to two upright plates 9. A first gear 22 and a second gear 23 are fixedly mounted on each end of the rotating shaft 21, located on opposite sides of the two upright plates 9. The first gear 22 is meshed with a horizontal rack 19, and the second gear 23 is meshed with a vertical rack 20. One end of the rotating shaft 21 is fixedly connected to the output shaft of a third motor 25.

[0020] In use, first determine the thickness of the adhesive layer to be coated, and then start the third motor 25 according to the thickness to drive the rotating shaft 21 to rotate. The rotating shaft 21 drives the first gear 22 and the second gear 23 to rotate. The rotation of the first gear 22 drives the horizontal rack 19 to move towards the coating roller 11, which in turn drives the scraper 18 to move towards the first guide roller 12 through the connecting rod 36. The second gear 23 drives the vertical rack 20 to move downward, which in turn drives the glue pressure roller 10 to move downward through the first support shaft 37. Thus, the positions of the scraper 18 and the glue pressure roller 10 can be adjusted at the same time, making the adjustment more convenient and quick. When the first gear 22 and the second gear 18 are exactly the same, and the tooth pitch on the horizontal rack 19 and the vertical rack 20 is exactly the same, it can be ensured that the distance the scraper 18 and the glue roller 10 move is exactly the same. This ensures that the distance between the glue roller 10 and the coating roller 11, which are adjusted to the correct position, is just enough to complete the coating of the adhesive layer of the required thickness. The distance between the scraper 18 and the first guide roller 12, which are adjusted to the correct position, is just enough to scrape off the excess adhesive and make the adhesive evenly distributed on the surface of the protective film. Thus, adhesive layers of different appropriate thicknesses can be evenly coated on the surface of the protective film.

[0021] The aforementioned stirring mechanism 8 further includes a drive shaft 26, a driven shaft 27, and stirring blades 28. The drive shaft 26 and the driven shaft 27 are distributed in parallel at intervals inside the glue storage tank 7, and both of them are provided with a number of stirring blades 28 on their circumferential outer walls.

[0022] The driving device of the above-mentioned stirring mechanism 8 further includes a driving gear 29 and a driven gear 30. The driving gear 29 is located outside the glue storage tank 7 and is fitted to one end of the driving shaft 26. The other end of the driving shaft 26 is rotatably connected to the inner wall of the glue storage tank 7. The driven gear 30, which meshes with the driving gear 29, is fixedly fitted to one end of the driven shaft 27.

[0023] During the coating process, when the second motor 16 drives the coating roller 11 to rotate, the second support shaft 38 drives the drive shaft 26 to rotate through the transmission belt 33. The drive shaft 26 drives the driven shaft 27 to rotate in the opposite direction through the drive gear 29 and the driven gear 30, which in turn drives the stirring blades 28 on the drive shaft 26 and the driven shaft 27 to rotate clockwise and counterclockwise respectively. This allows the stirring blades 28 to more thoroughly mix the adhesive in the storage tank 7, preventing it from drying and clumping due to prolonged static conditions, thus facilitating subsequent coating. Furthermore, the second motor 16, powered by the rotation of the coating roller 11, drives the stirring mechanism, saving resources and costs, and enhancing equipment connectivity.

[0024] The aforementioned transmission device 17 further includes a first transmission wheel 31, a second transmission wheel 32, and a transmission belt 33. The first transmission wheel 31 is installed at the end of the coating roller 11, and the second transmission wheel 32 is disposed at the end of the drive shaft 26. The first transmission wheel 31 and the second transmission wheel 32 are connected by the transmission belt 33.

[0025] Several heating tubes 34 are provided on each of the two opposing inner walls of the drying oven 15; the heating tubes 34 are arranged parallel to each other at intervals.

[0026] The scraper 18 is connected to the transverse rack 19 at both ends by a connecting rod 36, and the connecting rod 36 is slidably connected to the transverse through hole 92.

[0027] A first support shaft 37 is provided between each end of the aforementioned rubber pressure roller 10 and the vertical rack 20. The first support shaft 37 can slide up and down along the vertical through hole 91.

[0028] Each end of the coating roller 11 is provided with a second support shaft 38, which is rotatably connected to the vertical plate 9.

[0029] Example 2: An adhesive coating device includes: a housing 1, a feed port 2 is provided on one side of the housing 1, and a discharge port 3 is provided on the upper part of the other side of the housing 1. A feed roller 4 and a take-up roller 5 are respectively provided on the feed port 2 and the discharge port 3. One end of the take-up roller 5 is fixedly connected to the output shaft of a first motor 6. A glue storage tank 7 with a stirring mechanism 8 is set at the bottom of the shell 1. On each side of the glue storage tank 7, there is a vertical plate 9 with a vertical through hole 91 and a horizontal through hole 92. A glue pressing roller 10 is set between the two opposing vertical plates 9 and near the feed inlet 2. A coating roller 11 that is rotatably connected to the vertical plate 9 is set between the glue pressing roller 10 and the glue storage tank 7. A first guide roller 12 and a second guide roller 13 are set above the glue storage tank 7 and near the discharge outlet 3. A drying box 15 with a feed inlet 14 is set between the upper and lower distributed first guide roller 12 and second guide roller 13. The feed inlet 14 is respectively opened on the top wall and bottom wall of the drying box 15. After the adhesive is applied and spread evenly, the protective film passes vertically through the drying box 15 from the two feed ports 14. The adhesive is slightly dried and cured by multiple heating tubes 34, so that it is set on the surface of the protective film and prevented from dripping everywhere due to being too thin. Finally, it is discharged from the discharge port 3, and then the first motor 6 drives the take-up roller 5 to rotate and roll it onto the take-up roller 5. A second motor 16 is mounted on the outer wall of the housing 1. The output shaft of the second motor 16 is fixedly connected to one end of the coating roller 11. The other end of the coating roller 11 is connected to the drive device of the stirring mechanism 8 through a transmission device 17. A scraper 18 is disposed between the first guide roller 12 and the drying box 15. Its two ends pass through the transverse through hole 92 and are fixedly connected to a transverse rack 19 with a first toothed groove 191. The two ends of the rubber pressure roller 10 pass through the vertical through hole 91 and are rotatably connected to a vertical rack 20 with a second toothed groove 201. A rotating shaft 21, parallel to the rubber pressure roller 10, is rotatably connected to two upright plates 9. A first gear 22 and a second gear 23 are fixedly mounted on each end of the rotating shaft 21, located on opposite sides of the two upright plates 9. The first gear 22 is meshed with a horizontal rack 19, and the second gear 23 is meshed with a vertical rack 20. One end of the rotating shaft 21 is fixedly connected to the output shaft of a third motor 25.

[0030] The feeding roller 4 provides a protective film to the inside of the outer shell 1 through the feed port 2. The protective film completes the coating of the adhesive layer between the coating roller 11 and the adhesive pressing roller 10. After the adhesive layer is coated on the coating roller 11, the protective film passes through the right side of the first guide roller 12 and the left side of the second guide roller 13 so that it is in a vertical state between the first guide roller 12 and the second guide roller 13. The scraper 18 is provided with a guide plate 24 at its bottom. The scraper 18 scrapes off excess adhesive and makes the adhesive evenly distributed on the protective film. The scraped excess adhesive slides down the surface of the guide plate 24 into the adhesive storage tank 7 due to gravity. This allows the excess adhesive to be reused, avoids waste, and prevents the scraped adhesive from splashing and accumulating everywhere and polluting the working environment.

[0031] The aforementioned stirring mechanism 8 further includes a drive shaft 26, a driven shaft 27, and stirring blades 28. The drive shaft 26 and the driven shaft 27 are distributed in parallel at intervals inside the glue storage tank 7, and both of them are provided with a number of stirring blades 28 on their circumferential outer walls.

[0032] The driving device of the above-mentioned stirring mechanism 8 further includes a driving gear 29 and a driven gear 30. The driving gear 29 is located outside the glue storage tank 7 and is fitted to one end of the driving shaft 26. The other end of the driving shaft 26 is rotatably connected to the inner wall of the glue storage tank 7. The driven gear 30, which meshes with the driving gear 29, is fixedly fitted to one end of the driven shaft 27.

[0033] The aforementioned transmission device 17 further includes a first transmission wheel 31, a second transmission wheel 32, and a transmission belt 33. The first transmission wheel 31 is installed at the end of the coating roller 11, and the second transmission wheel 32 is disposed at the end of the drive shaft 26. The first transmission wheel 31 and the second transmission wheel 32 are connected by the transmission belt 33.

[0034] The stirring blades can more thoroughly mix the adhesive in the storage tank 7, preventing it from drying and clumping due to prolonged static state, thus facilitating subsequent coating. Furthermore, the second motor, powered by the rotation of the coating roller, drives the stirring mechanism, saving resources and reducing costs.

[0035] Several heating tubes 34 are provided on each of the two opposing inner walls of the drying oven 15.

[0036] The aforementioned feed roller 4 and take-up roller 5 are each connected to the outer wall of the housing 1 via a mounting bracket 35.

[0037] The scraper 18 is connected to the transverse rack 19 at both ends by a connecting rod 36, and the connecting rod 36 is slidably connected to the transverse through hole 92.

[0038] A door panel 39 is provided on the housing 1 and below the aforementioned discharge port 3.

[0039] Working principle: When in use, first determine the thickness of the adhesive layer to be coated, and then start the third motor 25 according to the thickness to drive the rotating shaft 21 to rotate. The rotating shaft 21 drives the first gear 22 and the second gear 23 to rotate. The rotation of the first gear 22 drives the horizontal rack 19 to move towards the coating roller 11, which in turn drives the scraper 18 to move towards the first guide roller 12 through the connecting rod 36. The second gear 23 drives the vertical rack 20 to move downward, which in turn drives the glue pressure roller 10 to move downward through the first support shaft 37. Thus, the positions of the scraper 18 and the glue pressure roller 10 can be adjusted at the same time, making the adjustment more convenient and quick. When the first gear 22 and the second gear 18 are exactly the same, and the tooth pitch on the horizontal rack 19 and the vertical rack 20 is exactly the same, it can be ensured that the distances of the scraper 18 and the glue roller 10 are exactly the same, so that the distance between the glue roller 10 and the coating roller 11 after adjusting the position is just enough to complete the coating of the adhesive layer of the required thickness. The distance between the scraper 18 and the first guide roller 12 after adjusting the position is just enough to scrape off the excess adhesive and make the adhesive evenly distributed on the surface of the protective film, so that adhesive layers of different suitable thicknesses can be evenly coated on the surface of the protective film. The feeding roller 4 provides a protective film to the inside of the outer shell 1 through the feed port 2. The protective film completes the coating of the adhesive layer between the coating roller 11 and the glue pressing roller 10. After the adhesive layer is coated on the coating roller 11, the protective film passes through the right side of the first guide roller 12 and the left side of the second guide roller 13 so that it is in a vertical state between the first guide roller 12 and the second guide roller 13. The excess adhesive is scraped off by the scraper 18 and the adhesive is evenly distributed on the protective film. The scraped excess adhesive slides down the surface of the guide plate 24 into the glue storage tank 7 due to gravity, so that the excess adhesive can be reused, avoiding waste, and preventing the scraped adhesive from splashing and accumulating everywhere and polluting the working environment. After the adhesive is applied and spread evenly, the protective film passes vertically through the drying box 15 from the two feed ports 14. The adhesive is slightly dried and cured by multiple heating tubes 34, so that it is set on the surface of the protective film and prevented from dripping everywhere due to being too thin. Finally, it is discharged from the discharge port 3, and then the first motor 6 drives the take-up roller 5 to rotate and roll it onto the take-up roller 5. During the coating process, as the second motor 16 drives the coating roller 11 to rotate, the second support shaft 38 drives the drive shaft 26 to rotate via the transmission belt 33. The drive shaft 26 drives the driven shaft 27 to rotate in opposite directions via the drive gear 29 and the driven gear 30. This causes the stirring blades 28 on the drive shaft 26 and the driven shaft 27 to rotate clockwise and counterclockwise, respectively. This allows the stirring blades 28 to more thoroughly mix the adhesive in the glue storage tank 7, preventing it from drying and clumping due to prolonged static conditions. This facilitates subsequent coating. Furthermore, the second motor 16, powered by the rotation of the coating roller 11, drives the stirring mechanism, saving resources and costs, and enhancing the equipment's interconnectivity.

[0040] When using the above-mentioned adhesive coating device, the scraper located between the first guide roller and the drying chamber has its two ends passing through transverse through holes and fixedly connected to a horizontal rack with a first toothed groove. The two ends of the adhesive pressure roller each pass through vertical through holes and are rotatably connected to a vertical rack with a second toothed groove. A first gear and a second gear are fixedly mounted on opposite sides of the two vertical plates at both ends of the rotating shaft. The first gear meshes with the horizontal rack, and the second gear meshes with the vertical rack. One end of the rotating shaft is fixedly connected to the output shaft of a third motor. Starting the third motor drives the rotating shaft to rotate. With the cooperation of the first and second gears, the doctor blade can be moved horizontally to adjust the distance between the doctor blade and the protective film, and the adhesive roller can be moved vertically to adjust the distance between the adhesive roller and the coating roller. This allows for simultaneous adjustment of the positions of the doctor blade and the adhesive roller, thus meeting the coating requirements of different thicknesses, improving the applicability of the device, greatly improving the convenience of operation, and improving the consistency of the adhesive layer thickness. It also effectively avoids the situation where the adhesive layer thickness changes due to different adjustment distances of the doctor blade and the adhesive roller when they are adjusted separately. Furthermore, the second motor is mounted on the outer wall of the housing. The output shaft of the second motor is fixedly connected to one end of the coating roller. The other end of the coating roller is connected to the drive device of the stirring mechanism through a transmission device. Several driving shafts and driven shafts with stirring blades are arranged parallel and spaced inside the glue storage tank. The driving gear is located outside the glue storage tank and is fitted to one end of the driving shaft. The other end of the driving shaft is rotatably connected to the inner wall of the glue storage tank. The driven gear, which meshes with the driving gear, is fixedly fitted to one end of the driven shaft. The first transmission wheel is installed at the end of the coating roller, and the second transmission wheel is located at the end of the driving shaft. The first transmission wheel and the second transmission wheel are connected by a transmission belt, which allows the stirring blades to more fully stir and mix the adhesive in the glue storage tank 7, avoiding the drying and clumping caused by prolonged static state. This facilitates subsequent coating. Moreover, the second motor drives the stirring mechanism using the power of the coating roller's rotation, saving resources and reducing costs.

[0041] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An adhesive coating apparatus, comprising: The housing (1) is characterized in that: a feed inlet (2) is provided on one side of the housing (1), and a discharge outlet (3) is provided on the upper part of the other side of the housing (1). A feed roller (4) and a take-up roller (5) are respectively provided for the feed inlet (2) and the discharge outlet (3). One end of the take-up roller (5) is fixedly connected to the output shaft of a first motor (6). A glue storage tank (7) with a stirring mechanism (8) is set at the bottom of the shell (1). On each side of the glue storage tank (7) there is a vertical plate (9) with a vertical through hole (91) and a horizontal through hole (92). A glue pressing roller (10) is set between the two opposing vertical plates (9) and on the side near the feed inlet (2). A coating roller (11) rotatably connected to the vertical plate (9) is set between the glue pressing roller (10) and the glue storage tank (7). A first guide roller (12) and a second guide roller (13) are set above the glue storage tank (7) and on the side near the discharge outlet (3). A drying box (15) with a feed inlet (14) is set between the upper and lower distributed first guide roller (12) and second guide roller (13). The feed inlet (14) is opened on the top wall and bottom wall of the drying box (15). A second motor (16) is mounted on the outer wall of the housing (1). The output shaft of the second motor (16) is fixedly connected to one end of the coating roller (11). The other end of the coating roller (11) is connected to the drive device of the stirring mechanism (8) through a transmission device (17). A scraper (18) is set between the first guide roller (12) and the drying box (15), and its two ends pass through the transverse through hole (92) and are fixedly connected to a horizontal toothed rack (19) with a first toothed groove (191). The two ends of the rubber pressure roller (10) pass through the vertical through hole (91) and are rotatably connected to a vertical toothed rack (20) with a second toothed groove (201). A rotating shaft (21) parallel to the rubber pressure roller (10) is rotatably connected to two vertical plates (9). A first gear (22) and a second gear (23) are fixedly mounted on opposite sides of the two vertical plates (9) at each end of the rotating shaft (21). The first gear (22) meshes with a horizontal rack (19), and the second gear (23) meshes with a vertical rack (20). One end of the rotating shaft (21) is fixedly connected to the output shaft of a third motor (25).

2. The adhesive coating apparatus according to claim 1, characterized in that: The stirring mechanism (8) further includes a drive shaft (26), a driven shaft (27) and stirring blades (28). The drive shaft (26) and the driven shaft (27) are distributed in parallel at intervals inside the glue storage tank (7), and both of them are provided with a number of stirring blades (28) on their circumferential outer walls.

3. The adhesive coating apparatus according to claim 2, characterized in that: The driving device of the stirring mechanism (8) further includes a driving gear (29) and a driven gear (30). The driving gear (29) is located outside the glue storage tank (7) and is fitted to one end of the driving shaft (26). The other end of the driving shaft (26) is rotatably connected to the inner wall of the glue storage tank (7). The driven gear (30) meshing with the driving gear (29) is fixedly fitted to one end of the driven shaft (27).

4. The adhesive coating apparatus according to claim 3, characterized in that: The transmission device (17) further includes a first transmission wheel (31), a second transmission wheel (32) and a transmission belt (33). The first transmission wheel (31) is installed at the end of the coating roller (11), and the second transmission wheel (32) is located at the end of the drive shaft (26). The first transmission wheel (31) and the second transmission wheel (32) are connected by the transmission belt (33).

5. The adhesive coating apparatus according to claim 1, characterized in that: The drying oven (15) has several heating tubes (34) on each of its two opposing inner walls.

6. The adhesive coating apparatus according to claim 5, characterized in that: The heating tubes (34) are arranged at parallel intervals on the upper and lower sides.

7. The adhesive coating apparatus according to claim 1, characterized in that: The feeding roller (4) and receiving roller (5) are each connected to the outer wall of the housing (1) through a mounting bracket (35).

8. The adhesive coating apparatus according to claim 1, characterized in that: The scraper (18) is connected to the transverse rack (19) at both ends by a connecting rod (36), and the connecting rod (36) is slidably connected to the transverse through hole (92).

9. The adhesive coating apparatus according to claim 1, characterized in that: A guide plate (24) is provided at the bottom of the scraper (18).

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