Automatic coating equipment for double faced adhesive tape production

Abstract

The utility model discloses automatic coating equipment for double-faced adhesive tape production, which relates to the technical field of double-faced adhesive tape coating machines and comprises a support arranged at the top end of a support column, a tension roller arranged on the inner wall of the support and a double-faced adhesive tape coating machine arranged on the inner wall of the support. The interiors of the fixing plates on the two sides are connected with a connecting plate, and an unwinding roller and a winding roller are installed on the surface of the connecting plate. According to the utility model, the threaded pipe can rotate through the work of the motor, so that the screw rod in the threaded pipe drives the unwinding roller to move upwards, and the corresponding screw rod drives the winding roller to move downwards, and therefore, the pressure between the base material and the tensioning roller can be increased along with the reduction of the base material on the surface of the unwinding roller, and the influence on the conveying of the base material is avoided; meanwhile, the tension between the winding roller and the tensioning roller can be reduced along with the increase of the double-faced adhesive tape on the surface of the winding roller, and the double-faced adhesive tape is prevented from being deformed and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided adhesive coating machines, in particular to an automatic coating device for the production of double-sided adhesives. Background Technique

[0002] The automatic coating device for the production of double-sided adhesives is a highly efficient and precise automatic production device, mainly used for evenly coating glue on a substrate to produce double-sided adhesive products. The automatic coating device for the production of double-sided adhesives realizes the automatic coating, drying, winding and other technological processes of glue through a precise mechanical structure and control system. This device has the advantages of high automation degree, high production efficiency, and stable coating quality, and is widely used in the production fields of double-sided adhesives, tapes, protective films and other products.

[0003] At present, the automatic coating device for the production of double-sided adhesives usually releases the substrate by a release roller, passes through a tension roller, a coating system and a drying system, and then winds it by a winding roller. As the release roller releases the substrate and the winding roller winds it, the double-sided adhesive on the winding roller increases, and the pressure between it and the adjacent tension roller increases, which easily causes the double-sided adhesive to deform, etc., affecting its subsequent use. At the same time, as the substrate on the release roller decreases, the tension between the substrate and the adjacent tension roller easily decreases, affecting the conveyance of the substrate. Content of the Utility Model

[0004] The utility model provides an automatic coating device for the production of double-sided adhesives, which solves the problems in the background technique.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An automatic coating device for the production of double-sided adhesives includes a bracket arranged at the top end of a support column, a tension roller arranged on the inner wall of the bracket, and a double-sided adhesive coating machine arranged on the inner wall of the bracket. On both sides of the top end of the bracket, fixing plates with a "U" - shaped cross - section are symmetrically arranged respectively. A connecting plate is connected inside the two fixing plates, and a release roller and a winding roller are installed on the surface of the connecting plate;

[0007] On the lower side of the surface of the support column, an installation plate with an inverted "U" - shaped cross - section is arranged. On both sides of the top end of the installation plate, a threaded tube is rotatably connected respectively. A screw rod is threadedly connected inside the threaded tube, and a cushion plate in contact with the bottom end of the connecting plate is arranged at the top end of the screw rod. The threaded tube passes through the installation plate and is connected with a first bevel gear. A threaded rod is rotatably arranged on the inner wall of the installation plate, and a second bevel gear connected with the first bevel gear is connected to the surface of the threaded rod. A motor for driving the threaded rod is installed on one side of the installation plate.

[0008] As a further description of the above technical solution:

[0009] The threads inside the threaded tubes on both sides of the top of the mounting plate are arranged in opposite directions.

[0010] As a further description of the above technical solution:

[0011] The connecting plate is slidably connected to the inner wall of the fixing plate.

[0012] As a further description of the above technical solution:

[0013] The top end of the connecting plate where the pay-out roller is located is connected with a positioning plate in a snap-fit ​​manner, and the bottom end of the positioning plate is provided with an infrared sensor.

[0014] As a further description of the above technical solution:

[0015] An annular plate is movably sleeved on the surface of the screw, and the inner wall of the annular plate is connected to a rack, the surface of the rack is meshedly connected to a gear, and the center of the gear is connected to a fixing rod that is threadedly connected to the inside of the pad, and the bottom end of the connecting plate is annularly equidistantly provided with threaded holes that are threadedly connected to the surface of the fixing rod.

[0016] As a further description of the above technical solution:

[0017] A sliding groove is provided at the inner bottom end of the annular plate, and a sliding block is slidably connected inside the sliding groove and is rotatably connected to the bottom end of the fixing rod.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] In the utility model, the motor can rotate the threaded tube, so that the screw inside the threaded tube drives the pay-out roller to move upward, and the corresponding screw drives the take-up roller to move downward, so that as the substrate on the surface of the pay-out roller decreases, the pressure between the substrate and the tension roller can be increased, thereby avoiding affecting the conveyance of the substrate. At the same time, as the double-sided tape on the surface of the take-up roller increases, the tension between it and the tension roller can be reduced, thereby avoiding deformation and damage of the double-sided tape.

[0020] In the utility model, the annular plate is rotated so that the rack drives the gear and the fixed rod to rotate, so that the fixed rod can be removed from the inside of the connecting plate, so that the connecting plate, winding roller and pay-out roller can be disassembled, which is convenient for their maintenance or repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an automatic coating equipment for producing double-sided adhesive tape;

[0022] Figure 2 This is a schematic structural diagram of the bottom portion of the mounting plate in the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the annular plate in the present invention.

[0024] Legend:

[0025] Bracket; 2. Tensioning roller; 3. Double-sided tape applicator; 4. Fixed plate; 5. Connecting plate; 6. Pay-out roller; 7. Winding roller; 8. Mounting plate; 9. Threaded tube; 10. Screw; 11. Pad; 12. First bevel gear; 13. Threaded rod; 14. Second bevel gear; 15. Motor; 16. Positioning plate; 17. Ring plate; 18. Rack; 19. Gear; 20. Fixed rod; 21. Slide groove; 22. Slider. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Reference Figure 1-Figure 3, An automatic coating equipment for the production of double-sided adhesive, including a bracket 1 arranged at the top of a support column, a tension roller 2 arranged on the inner wall of the bracket 1, and a double-sided adhesive coater 3 arranged on the inner wall of the bracket 1. On both sides of the top of the bracket 1, there are symmetrically arranged fixing plates 4 with a "U" - shaped cross - section. Inside the two fixing plates 4, there is a connecting plate 5, and on the surface of the connecting plate 5, there are a releasing roller 6 and a winding roller 7 installed; on the lower side of the surface of the support column, there is an installation plate 8 with an inverted "U" - shaped cross - section. On both sides of the top of the installation plate 8, there are respectively rotationally connected threaded pipes 9. Inside the threaded pipes 9, there are threaded connections with screw rods 10, and at the top of the screw rods 10, there is a cushion plate 11 that contacts the bottom end of the connecting plate 5. The threaded pipes 9 pass through the installation plate 8 and are connected to a first bevel gear 12. Inside the inner wall of the installation plate 8, there is a rotationally arranged threaded rod 13, and on the surface of the threaded rod 13, there is a second bevel gear 14 connected to the first bevel gear 12. On one side of the installation plate 8, there is a motor 15 for driving the threaded rod 13. The coating method of the double - sided adhesive coater 3 usually uses two coating rollers or coating heads, corresponding to the upper and lower sides of the double - sided adhesive respectively. The coating rollers are two rotating rollers, and the coating head may be an even spraying device that evenly coats the adhesive liquid on the two surfaces of the double - sided adhesive in a spraying manner. The coating system controls the running speed and pressure of the coating rollers or coating heads through a high - precision servo motor and a numerical control system to precisely control the thickness and uniformity of the coated adhesive layer. This helps to ensure that the produced double - sided adhesive products have consistency and high viscosity. It also includes a drying system. After coating, the double - sided adhesive needs to go through a drying process to quickly cure the adhesive liquid and form a sticky adhesive layer. The drying system can use natural drying or hot - air drying and other methods, depending on production requirements and product characteristics. The hot - air drying system usually includes components such as a hot - air furnace, a blower, and heating pipes. They accelerate the curing process of the adhesive liquid by blowing hot air on the coated double - sided adhesive (for details, refer to existing double - sided adhesive coating equipment). Through the monitoring of an infrared sensor, when the distance between the outermost substrate of the releasing roller 6 and the infrared sensor is greater than the set threshold value, the controller makes the motor 15 work. The threaded rod 13 can be made to drive the second bevel gear 14, the first bevel gear 12, and the threaded pipe 9 to rotate on the surface of the screw rod 10. Thus, the screw rod 10 can be made to drive the connecting plate 5 and the releasing roller 6 on the connecting plate 5 to move upward, so that when the substrate on the surface of the releasing roller 6 decreases, the tension between the substrate and the tension roller 2 can be increased. At the same time, the screw rod 10 on the other side can be made to drive the corresponding connecting plate 5 and the winding roller 7 to move downward, reducing the tension between the outermost double - sided adhesive on the surface of the winding roller 7 and the tension roller 2, avoiding the increase in the double - sided adhesive on the winding roller 7, resulting in excessive tension between it and the tension roller 2, and causing deformation and damage to the double - sided adhesive.

[0028] Furthermore, the threads inside the threaded tubes 9 on both sides of the top of the mounting plate 8 are set in reverse, so that when the threaded tubes 9 on both sides rotate on the surface of the screw 10, the screw 10 on one side can move upward, while the screw 10 on the other side drives the connecting plate 5 to move downward.

[0029] Furthermore, the connecting plate 5 and the inner wall of the fixed plate 4 are slidably connected, so that when the threaded tube 9 rotates on the surface of the screw 10, the screw 10 can drive the connecting plate 5 to move within the fixed plate 4 in a limited manner, so as to adjust the height of the pay-out roller 6 and the winding roller 7.

[0030] Furthermore, the top end of the connecting plate 5 where the pay-out roller 6 is located is engaged with a positioning plate 16, and the bottom end of the positioning plate 16 is installed with an infrared sensor. The infrared sensor is used to monitor the amount of substrate on the surface of the pay-out roller 6. When the distance between the outermost substrate of the pay-out roller 6 and the infrared sensor is greater than the set threshold, the controller can control the power switch to supply power to the motor 15 to adjust the height of the pay-out roller 6 and the winding roller 7. The infrared sensor and the motor 15 are connected to the controller.

[0031] Furthermore, an annular plate 17 is movably sleeved on the surface of the screw 10, and a rack 18 is connected to the inner wall of the annular plate 17, and the surface of the rack 18 is meshedly connected to the gear 19, and the center of the gear 19 is connected to a fixing rod 20 that is threadedly connected to the inside of the backing plate 11. Threaded holes that are threadedly connected to the surface of the fixing rod 20 are equidistantly opened in an annular shape at the bottom end of the connecting plate 5. By rotating the annular plate 17, the rack 18 on its inner wall can be moved on the surface of the gear 19, so that the gear 19 drives the fixing rod 20 to rotate. Since the fixing rod 20 and the backing plate 11 are threadedly connected, they can be rotated and moved so that the fixing rod 20 passes through the backing plate 11 and is connected to the inside of the threaded hole at the bottom end of the connecting plate 5, thereby facilitating the installation or disassembly of the fixing rod 20 and the connecting plate 5.

[0032] Furthermore, a slide groove 21 is provided at the inner bottom end of the annular plate 17, and a slider 22 is slidably connected to the inner side of the slide groove 21 and is rotatably connected to the bottom end of the fixed rod 20. This is so that when the annular plate 17 rotates, it can move on the surface of the slider 22 through the slide groove 21, thereby allowing the rack 18 to move on the surface of the gear 19.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic coating device for producing double-sided adhesive tape, comprising a bracket (1) arranged at the top end of a support column, a tensioning roller (2) arranged on the inner wall of the bracket (1), and a double-sided adhesive coating machine (3) arranged on the inner wall of the bracket (1), characterized in that: On both sides of the top end of the bracket (1), fixing plates (4) with a "U" - shaped cross - section are symmetrically arranged respectively. Inside the two fixing plates (4), a connecting plate (5) is connected, and a pay - off roller (6) and a winding roller (7) are installed on the surface of the connecting plate (5). On the lower side of the surface of the support column, an installation plate (8) with an inverted "U" - shaped cross - section is arranged. On both sides of the top end of the installation plate (8), threaded pipes (9) are respectively rotatably connected. Inside the threaded pipes (9), threaded rods (10) are threadedly connected. And at the top end of the threaded rod (10), a cushion plate (11) which contacts the bottom end of the connecting plate (5) is arranged. The threaded pipe (9) passes through the installation plate (8) and is connected to a first bevel gear (12). Inside the inner wall of the installation plate (8), a threaded rod (13) is rotatably arranged, and on the surface of the threaded rod (13), a second bevel gear (14) which is connected to the first bevel gear (12) is arranged. On one side of the installation plate (8), a motor (15) for driving the threaded rod (13) is installed.

2. The automatic coating equipment for double-sided adhesive production according to claim 1, characterized in that: The threads inside the threaded pipes (9) on both sides of the top end of the installation plate (8) are arranged in the opposite direction.

3. The automatic coating equipment for double-sided adhesive production according to claim 1, characterized in that: The inner wall of the connecting plate (5) is slidably connected to the inner wall of the fixing plate (4).

4. The automatic coating equipment for double-sided adhesive production according to claim 1, characterized in that: On the top end of the connecting plate (5) where the pay - off roller (6) is located, a positioning plate (16) is snap - fitted, and an infrared sensor is installed at the bottom end of the positioning plate (16).

5. The automatic coating equipment for double-sided adhesive production according to claim 1, characterized in that: On the surface of the threaded rod (10), an annular plate (17) is movably sleeved. Inside the inner wall of the annular plate (17), a rack (18) is connected. On the surface of the rack (18), a gear (19) is meshed, and at the center of the gear (19), a fixing rod (20) which is threadedly connected to the inside of the cushion plate (11) is connected. On the bottom end of the connecting plate (5), threaded holes which are threadedly connected to the surface of the fixing rod (20) are annularly and equally spaced.

6. The automatic coating equipment for double-sided adhesive production according to claim 5, characterized in that: At the bottom end inside the annular plate (17), a chute (21) is opened, and inside the chute (21), a slider (22) which is rotatably connected to the bottom end of the fixing rod (20) is slidably connected.

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