High-barrier PVA nylon film coating equipment

Abstract

The utility model relates to the technical field of coating equipment, and discloses high-barrier PVA (polyvinyl alcohol) nylon film coating equipment which comprises a supporting table, one side of the supporting table is fixedly connected with a motor I, the output end of the motor I is fixedly connected with a conveying roller, the conveying roller is rotatably connected inside the supporting table, the top of the supporting table is fixedly connected with a coating frame, and the coating frame is fixedly connected with a motor II. A threaded column is rotationally connected to the interior of the coating frame, connecting blocks which are symmetrical up and down are in threaded connection to the outer wall of the threaded column, coating rollers are rotationally connected to one sides of the two connecting blocks, and a second motor is fixedly connected to one side of the coating frame. The first motor drives the conveying roller to rotate to achieve film conveying, when the film penetrates through the positions below the multiple rollers, the rollers make contact with the film to drive the connecting rods to move, the connecting rods drive the lantern rings to move and compress the first springs, the connecting rods are reset through the elasticity of the first springs, and the rollers are tightly attached to the film for limiting; and the effect of effectively limiting the films with different thicknesses is achieved.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a high-barrier PVA nylon film coating equipment. Background Technology

[0002] In today's diverse industrial and daily life applications, high-barrier PVA nylon films occupy an important position due to their superior performance, such as excellent gas barrier properties, good mechanical strength, and chemical corrosion resistance. From food packaging, which effectively extends the shelf life of food and prevents the intrusion of oxygen and moisture that cause food spoilage; to electronic device protection, which protects precision electronic components from external environmental corrosion and ensures their stable operation; and to pharmaceutical packaging, which ensures the quality and safety of medicines, the coating process of the film is a key link in improving its performance. By uniformly coating the film surface with specific materials, its barrier properties, abrasion resistance, and other characteristics can be further enhanced.

[0003] Traditional high-barrier PVA nylon film coating equipment is structurally basic. Its film conveying section usually relies on a simple motor to drive a roller of fixed diameter to rotate, pulling the film from one end to the other. In terms of film positioning, mechanical baffles with fixed height or spacing are often used. The technical principle is based on simple physical obstruction, which ensures the stability of the film's position during the coating process by restricting the lateral movement of the film.

[0004] However, traditional high-barrier PVA nylon film coating equipment has the problem of effectively limiting films of different thicknesses. In actual production, high-barrier PVA nylon films have a wide variety of thicknesses due to different application scenarios. Traditional coating equipment, due to its fixed limiting structure, cannot automatically adjust the fit between the limiting device and the film when faced with films of different thicknesses. When the film is thin, the fixed-height limiting rollers or baffles may not fit the film tightly, causing the film to shake and shift during transportation, resulting in uneven coating and affecting the barrier performance of the film. When the film is thick, the limiting device may apply excessive pressure to the film, causing damage to the film surface and reducing the mechanical strength of the film. Therefore, a high-barrier PVA nylon film coating equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-barrier PVA nylon film coating equipment, which aims to improve the problem in the prior art that it is difficult to effectively limit films of different thicknesses and cannot automatically adjust the degree of adhesion between the limiting device and the film when facing films of different thicknesses.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-barrier PVA nylon film coating device includes a support platform, a motor fixedly connected to one side of the support platform, a conveyor roller fixedly connected to the output end of the motor, the conveyor roller being rotatably connected inside the support platform, a coating frame fixedly connected to the top of the support platform, a threaded column rotatably connected inside the coating frame, and symmetrical connecting blocks threaded to the outer wall of the threaded column, with a coating roller rotatably connected to one side of each of the two connecting blocks, a second motor fixedly connected to one side of the coating frame, the output end of the second motor being connected to one of the coating rollers, a support frame fixedly connected to the top of the support platform, a limit component being provided inside the support frame, and a support component being provided on the top of the support platform;

[0008] The limiting assembly includes a connecting rod and a roller. The connecting rod is slidably connected inside the support frame, and the roller is rotatably connected to one end of the connecting rod. A collar is fixedly connected to the outer wall of the connecting rod, and a spring is sleeved on the outer wall of the connecting rod. The two ends of the spring are fixedly connected to the support frame and the collar, respectively.

[0009] As a further description of the above technical solution:

[0010] The support assembly includes a fixed frame and a connecting frame 2. The bottom of the fixed frame is fixedly connected to the top of the support platform, and one side of the connecting frame 2 is fixedly connected to one side of the fixed frame.

[0011] As a further description of the above technical solution:

[0012] The connecting frame 2 is rotatably connected to a pressure roller, and the fixed frame is slidably connected to a sliding column.

[0013] As a further description of the above technical solution:

[0014] A cutter is fixedly connected to the bottom end of the sliding column, and the cutter is slidably connected to one side of the connecting frame.

[0015] As a further description of the above technical solution:

[0016] A second spring is fitted on the outer wall of the sliding column, and both ends of the second spring are fixedly connected inside the fixed frame.

[0017] As a further description of the above technical solution:

[0018] A motor is fixedly connected inside the fixed frame, and a turntable is fixedly connected to the output end of the motor.

[0019] As a further description of the above technical solution:

[0020] One end of the turntable is rotatably connected to an eccentric column, and a transmission rod is rotatably connected to the outer wall of the eccentric column.

[0021] As a further description of the above technical solution:

[0022] A connecting frame is fixedly connected to the top of the sliding column, and one end of the transmission rod is rotatably connected to the bottom of the connecting frame.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the film is conveyed by a motor driving the conveying roller to rotate. When the film passes under multiple rollers on the top of the support platform, the rollers contact the film and drive the connecting rod to move. The connecting rod drives the collar to move and compress the spring. The elasticity of the spring causes the connecting rod to return to its original position, allowing the rollers to fit tightly against the film for limiting. This achieves the effect of effectively limiting films of different thicknesses, solving the problem of difficulty in effectively limiting films of different thicknesses and the inability to automatically adjust the degree of fit between the limiting device and the film when facing films of different thicknesses. This improves the applicability of the coating equipment.

[0025] 2. In this utility model, the coated film passes through the bottom of the cutter and pressure roller inside the fixed frame. The output end of the motor drives the turntable to rotate, the turntable drives the eccentric column to move, the eccentric column drives the transmission rod, the transmission rod drives the connecting frame to move up and down, the connecting frame drives the sliding column to slide inside the fixed frame, and the sliding column drives the bottom cutter to slide to cut the film. This achieves the effect of effectively cutting the coated film, solving the problem that traditional coating equipment is difficult to cut the film quickly after coating, thereby improving the flexibility of the coating equipment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a high-barrier PVA nylon film coating equipment proposed in this utility model;

[0027] Figure 2 This is a schematic diagram of the roller structure of a high-barrier PVA nylon film coating equipment proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the internal structure of the coating rack of a high-barrier PVA nylon film coating equipment proposed in this utility model.

[0029] Figure 4 This is a schematic diagram of the cutter structure of a high-barrier PVA nylon film coating equipment proposed in this utility model.

[0030] Legend:

[0031] 1. Support platform; 2. Motor 1; 3. Conveyor roller; 4. Support frame; 5. Connecting rod; 6. Roller; 7. Collar; 8. Spring 1; 9. Coating rack; 10. Threaded column; 11. Connecting block; 12. Motor 2; 13. Coating roller; 14. Fixing frame; 15. Motor 3; 16. Turntable; 17. Eccentric column; 18. Transmission rod; 19. Sliding column; 20. Connecting frame 1; 21. Cutter; 22. Spring 2; 23. Connecting frame 2; 24. Pressure roller. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a high-barrier PVA nylon film coating device, comprising a support platform 1, a motor 2 fixedly connected to one side of the support platform 1, and a conveyor roller 3 fixedly connected to the output end of the motor 2. The motor 2 serves as a drive source, and its output end is connected to the conveyor roller 3 to ensure stable rotation of the conveyor roller 3, thus smoothly conveying the PVA nylon film inside the device. The conveyor roller 3 is rotatably connected inside the support platform 1. A coating frame 9 is fixedly connected to the top of the support platform 1, and a threaded post 10 is rotatably connected inside the coating frame 9. The outer wall of the threaded post 10 is threaded with an upper... The lower symmetrical connecting blocks 11 are rotatably connected to one side of each of the two connecting blocks 11. The connecting blocks 11 move up and down under the drive of the threaded column 10, thereby adjusting the distance between the coating rollers 13. A motor 2 12 is fixedly connected to one side of the coating frame 9. The output end of the motor 2 12 is connected to one of the coating rollers 13. The main function of the motor 2 12 is to drive the coating roller 13 to rotate, ensuring uniform coating on the film surface during the coating process. A support frame 4 is fixedly connected to the top of the support platform 1. A limit component is set inside the support frame 4. A support component is set on the top of the support platform 1.

[0034] The limiting assembly includes a connecting rod 5 and a roller 6. The connecting rod 5 is slidably connected inside the support frame 4, and the roller 6 is rotatably connected to one end of the connecting rod 5 to help reduce friction and movement resistance. A collar 7 is fixedly connected to the outer wall of the connecting rod 5, and a spring 8 is sleeved on the outer wall of the connecting rod 5. The two ends of the spring 8 are fixedly connected to the support frame 4 and the collar 7, respectively. The spring 8 provides the necessary rebound force to ensure that the equipment has good responsiveness during operation.

[0035] Reference Figures 1-3The support assembly includes a fixed frame 14 and a connecting frame 23. The bottom of the fixed frame 14 is fixedly connected to the top of the support platform 1, and one side of the connecting frame 23 is fixedly connected to one side of the fixed frame 14. A pressure roller 24 is rotatably connected inside the connecting frame 23. The pressure roller 24 is mainly used to compact the film as it passes through, ensuring stability during cutting. A sliding column 19 is slidably connected inside the fixed frame 14. A cutter 21 is fixedly connected to the bottom of the sliding column 19. The cutter 21 is used to precisely cut the film after coating, ensuring the length accuracy of the film. The cutter 21 is slidably connected to one side of the connecting frame 23. A spring 22 is sleeved on the outer wall of the sliding column 19. Both ends are fixedly connected inside the fixed frame 14. Spring 22 ensures the rebound of the cutter 21 during operation to avoid unnecessary damage. Motor 3 15 is fixedly connected inside the fixed frame 14. Turntable 16 is fixedly connected to the output end of motor 3 15. Eccentric column 17 is rotatably connected to one end of turntable 16. The output end of motor 3 15 drives turntable 16 to rotate. Turntable 16 causes eccentric column 17 to move through the transmission mechanism connected to eccentric column 17. Transmission rod 18 is rotatably connected to the outer wall of eccentric column 17. Connecting frame 1 20 is fixedly connected to the top of sliding column 19. One end of transmission rod 18 is rotatably connected to the bottom of connecting frame 1 20.

[0036] Working principle: When using this coating equipment, the nylon film is first passed through the bottom of the conveyor roller 3 inside the support platform 1. Then, the output end of the motor 2 drives the conveyor roller 3 to rotate, thereby conveying the film. At the same time, the film passes under the multiple rollers 6 on the top of the support platform 1. When the rollers 6 contact the film, they will drive the connecting rod 5 on the outer wall to move. The connecting rod 5 drives the collar 7 on the outer wall to move. The collar 7 is compressed by the force, and the elasticity of the spring 8 will drive the connecting rod 5 to return to its original position, so that the rollers 6 are tightly attached to the film and limit its position. Then, the film is passed through the two coating rollers 13 inside the coating frame 9 for coating, thereby achieving the effect of effectively limiting the film of different thicknesses.

[0037] After coating, the film passes through the cutter 21 and the bottom of the pressure roller 24 inside the fixed frame 14. At this time, the output end of the motor 15 drives the turntable 16 to rotate. The turntable 16 is driven by force to move the eccentric column 17 at one end, which in turn drives the transmission rod 18 on the outer wall to move. The transmission rod 18 drives the connecting frame 20 on the outer wall to move up and down. The connecting frame 20 drives the sliding column 19 at the bottom to slide inside the fixed frame 14. The sliding column 19 drives the cutter 21 at the bottom to slide, thereby cutting the film, thus achieving the effect of effectively cutting the coated film.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high barrier PVA nylon film coating apparatus comprising a support table (1), characterized in that: The support table (1) one side fixed connection has motor one (2), motor one (2) output fixed connection has conveying roller (3), conveying roller (3) rotation is connected in support table (1) inside, support table (1) top fixed connection has coating frame (9), coating frame (9) inside rotation is connected with screw column (10), screw column (10) outer wall thread connection has up and down symmetry connection block (11), two connection block (11) one side rotation is connected with coating roller (13), coating frame (9) one side fixed connection has motor two (12), motor two (12) output and one of coating roller (13) are connected, support table (1) top fixed connection has support frame (4), support frame (4) inside is provided with limiting component, support table (1) top is provided with support component; The limiting component includes a connecting rod (5) and a roller (6), the connecting rod (5) is slidably connected in the support frame (4), the roller (6) is rotatably connected to one end of the connecting rod (5), the connecting rod (5) is fixedly connected with a sleeve ring (7) on the outer wall, the connecting rod (5) is provided with a spring (8) on the outer wall, and the two ends of the spring (8) are fixedly connected in the support frame (4) and the sleeve ring (7).

2. A high barrier PVA nylon film coating apparatus as claimed in claim 1, wherein: The support component includes a fixed frame (14) and a connecting frame two (23), the fixed frame (14) is fixedly connected to the top of the support table (1), and the connecting frame two (23) is fixedly connected to one side of the fixed frame (14).

3. A high barrier PVA nylon film coating apparatus as claimed in claim 2, wherein: The connecting frame two (23) is rotatably connected with a compression roller (24) in the inside, and the fixed frame (14) is slidably connected with a slide column (19) in the inside.

4. The high-barrier PVA nylon film coating equipment according to claim 3, characterized in that: The slide column (19) is fixedly connected with a cutter (21) at the bottom end, and the cutter (21) is slidably connected to one side of the connecting frame two (23).

5. A high barrier PVA nylon film coating apparatus as claimed in claim 4, wherein: The slide column (19) is provided with a spring two (22) on the outer wall, and the two ends of the spring two (22) are fixedly connected in the fixed frame (14).

6. A high barrier PVA nylon film coating apparatus as claimed in claim 5, wherein: The fixed frame (14) is fixedly connected with a motor three (15) in the inside, and the output end of the motor three (15) is fixedly connected with a rotating disc (16).

7. A high barrier PVA nylon film coating apparatus as claimed in claim 6, wherein: One end of the rotating disc (16) is rotatably connected with an eccentric column (17), and the eccentric column (17) is rotatably connected with a transmission rod (18) on the outer wall.

8. A high barrier PVA nylon film coating apparatus as claimed in claim 7, wherein: The slide column (19) is fixedly connected with a connecting frame one (20) at the top end, and one end of the transmission rod (18) is rotatably connected to the bottom of the connecting frame one (20).

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