Multi-channel drying air duct structure for water-soluble film production

Abstract

The utility model relates to water -soluble film drying technical field, concretely relates to a kind of multichannel drying air duct structure for water -soluble film production, including support base, the top of support base is fixedly connected with support frame, the middle part of support frame is fixedly connected with drying cabinet, the both sides of drying cabinet are provided with the through port for water -soluble film to pass through, three guide rollers are rotatably connected in the inside of drying cabinet, three guide rollers are distributed in L shape, the outer wall of support base is fixedly connected with three drying air pipes, three drying air pipes are respectively distributed on the top and bottom and side wall of drying cabinet, the one end of three drying air pipes all penetrates the inside of drying cabinet.Compared with prior art, the present application effectively avoids the problem of excessive drying of narrow water-soluble film or insufficient drying of wide edge, enhances the adaptability and drying effect of the equipment, and ensures the drying quality and consistency of the finished product.

Description

Technical Field

[0001] This utility model relates to the field of water-soluble film drying technology, and in particular to a multi-channel drying air duct structure for water-soluble film production. Background Technology

[0002] Water-soluble films are biodegradable films that dissolve rapidly in water and are widely used in laundry detergent pods, pesticide packaging, and food additive encapsulation. The drying process is particularly crucial in the production of water-soluble films, as the drying effect directly affects the film's appearance, smoothness, mechanical strength, and film quality. Existing water-soluble film drying equipment introduces hot air into a drying chamber to dry the film; however, existing equipment struggles to adjust the airflow range or angle according to the different widths of the water-soluble film, failing to effectively cover the entire width of the film.

[0003] A Chinese patent has been published: a water-soluble film drying device, patent publication number: CN216827041U. The patent "includes a drying box, and further includes: a partition fixedly connected inside the drying box; a rotating shaft symmetrically rotatably connected to the partition, with guide wheels symmetrically fixedly connected to the rotating shaft; a conveyor steel belt passing through the four guide wheels; a fan fixedly connected to the inner wall of the drying box, with an air outlet pipe connected to the fan's output end, the air outlet pipe facing into the drying box; this utility model can use infrared heating tubes and fans in conjunction with each other."

[0004] While this device avoids the problem of cracking caused by rapid moisture evaporation during the drying process, the output of the hot air blower directly onto the water-soluble film, and the blowing direction is not adjustable. This makes it difficult to flexibly adjust the air supply range or angle according to the different widths of the water-soluble film during the actual drying process. Since the hot air cannot effectively cover the entire wide area of ​​the film material, narrow water-soluble films are prone to over-drying, even causing deformation, while the edges of wide water-soluble films are not thoroughly dried due to insufficient air coverage. This affects the overall drying quality and product consistency of the film material, and limits the equipment's adaptability to water-soluble films of different specifications. Utility Model Content

[0005] In view of this, the purpose of this utility model is to propose a multi-channel drying air duct structure for the production of water-soluble films, so as to solve the problem that the existing blowing direction is not adjustable, which makes it difficult to flexibly adjust the air supply range or air supply angle according to the different widths of water-soluble films during the actual drying process.

[0006] Based on the above objectives, this utility model provides a multi-channel drying duct structure for water-soluble film production, including a support base, a support frame fixedly connected to the top of the support base, a drying chamber fixedly connected to the middle part of the support frame, and through openings on both sides of the drying chamber for the water-soluble film to pass through. Three guide rollers are rotatably connected inside the drying chamber, and the three guide rollers are distributed in an L-shape. Three drying ducts are fixedly connected to the outer wall of the support base, and the three drying ducts are respectively distributed on the top, bottom, and side walls of the drying chamber. One end of each of the three drying ducts extends into the interior of the drying chamber. A blower head is fixedly connected to the end of the drying duct closest to the interior of the drying chamber, and a hot air blower for drying the water-soluble film is fixedly connected to the end of the drying duct furthest from the drying chamber. An adjustment mechanism for adjusting the angle of the airflow from the drying duct towards the water-soluble film is provided inside the blower head located inside the drying duct.

[0007] Preferably, the adjusting mechanism includes a first guide plate fixedly connected to the middle part of the inner wall of the blower head, and multiple second guide plates rotatably distributed at equal intervals on both sides of the inner wall of the blower head near the first guide plate. A support plate is fixedly connected to the side wall of the first guide plate, and an adjusting plate is slidably connected to both sides of the support plate. A first through groove is opened on the side wall of the adjusting plate, and a synchronization plate is fixedly connected to the side wall of the multiple equal-distance second guide plates. One end of the synchronization plate is located inside the first through groove, and a second through groove is opened at the top of one end of the synchronization plate. A sliding rod is slidably connected inside the second through groove, and the sliding rod is fixedly connected between the inner walls of the first through groove.

[0008] Preferably, a box is fixedly connected to the side wall of the blower head, and a push block is rotatably connected to the inner wall of the box. The push block is elliptical in shape. Toothed plates are slidably connected to both sides of the inner wall of the box near the push block. The toothed plates are U-shaped. A spring is fixedly connected to one end of each toothed plate away from the other. The end of the spring away from the toothed plate is fixedly connected to the inner wall of the box. The shaft of the second guide plate near the two sides of the first guide plate passes through the inner wall of the box and is fixedly connected to a gear. The gear meshes with the toothed plate. The shaft of the push block passes through the outer wall of the box and is fixedly connected to a rotating handle.

[0009] Preferably, both of the toothed plates are rotatably connected to rollers near the outer wall of the push block, and the outer walls of the rollers are in contact with the outer wall of the push block.

[0010] Preferably, the outer wall of the rotating handle is threaded with a threaded rod, the bottom end of which penetrates the bottom of the rotating handle, and when the threaded rod rotates, the bottom end of the threaded rod abuts against the top of the box.

[0011] Preferably, the top of the drying chamber is connected to a dehumidification channel, and a dehumidification fan for discharging moisture from the drying chamber is fixedly installed on the top of the dehumidification channel.

[0012] Preferably, the side wall of the drying oven is provided with a switch door that can be opened and rotated with a handle.

[0013] The beneficial effects of this utility model are:

[0014] This water-soluble film production utilizes a multi-channel drying duct structure. The aforementioned adjustment mechanism is ingeniously designed. By rotating the handle, an elliptical push block rotates. During rotation, the outer wall of the push block sequentially pushes rollers located on both sides, causing the rollers to push a toothed plate along the inner wall of the box. The toothed plate meshes with a gear, causing the gear to drive a second guide plate connected to its shaft to rotate synchronously, thereby adjusting the hot air blowing angle. Simultaneously, each second guide plate moves together with the adjustment plate via a synchronization plate, allowing multiple second guide plates on both sides of the first guide plate to move one end further away from or closer to each other. This allows them to be adjusted according to the width of the water-soluble film, expanding or concentrating the hot air outlet area. This structure enables flexible adjustment of the hot air angle and range, improving the uniformity of hot air coverage on water-soluble films of different widths. It effectively avoids the problems of over-drying narrow water-soluble films or insufficient drying at the edges of wide films, enhancing the adaptability and drying effect of the equipment, and ensuring the overall drying quality and consistency of the finished product. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the drying oven of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the drying duct of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the adjustment mechanism of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the push block and toothed plate of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the first and second guide plates of this utility model.

[0021] The diagram is marked as follows:

[0022] 1. Support base; 2. Support frame; 3. Drying box; 4. Drying duct; 5. Air blower; 6. Hot air blower; 7. First guide plate; 8. Second guide plate; 9. Support plate; 10. Adjusting plate; 11. First through slot; 12. Synchronizing plate; 13. Second through slot; 14. Slide rod; 15. Box body; 16. Push block; 17. Toothed plate; 18. Spring; 19. Gear; 20. Rotating handle; 21. Roller; 22. Threaded rod; 23. Dehumidification channel; 24. Exhaust fan; 25. Opening and closing door; 26. Pass-through port; 27. Guide roller. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] like Figures 1 to 6 As shown, a multi-channel drying duct structure for water-soluble film production includes a support base 1, a support frame 2 fixedly connected to the top of the support base 1, a drying chamber 3 fixedly connected to the middle part of the support frame 2, and through openings 26 on both sides of the drying chamber 3 for the water-soluble film to pass through. Three guide rollers 27 are rotatably connected inside the drying chamber 3, and the three guide rollers 27 are distributed in an L-shape. The three guide rollers 27 increase the residence time of the water-soluble film in the first guide plate 7, thereby improving the drying efficiency. Three drying air ducts 4 are fixedly connected to the outer wall of the support base 1. The three drying air ducts 4 are respectively distributed on the top, bottom and side wall of the drying chamber 3. One end of each of the three drying air ducts 4 passes into the interior of the drying chamber 3. A blower head 5 is fixedly connected to the end of the drying air duct 4 closest to the interior of the drying chamber 3, and a hot air blower 6 for drying the water-soluble film is fixedly connected to the end of the drying air duct 4 furthest from the drying chamber 3. An adjustment mechanism for adjusting the angle of the airflow from the drying air duct 4 to the water-soluble film is provided in the blower head 5 inside the drying air duct 4.

[0025] Further, see attached document. Figures 1 to 6As shown, the adjustment mechanism includes a first guide plate 7 fixedly connected to the middle part of the inner wall of the blower head 5. Multiple second guide plates 8 are rotatably distributed at equal intervals on both sides of the inner wall of the blower head 5 near the first guide plate 7. A support plate 9 is fixedly connected to the side wall of the first guide plate 7. Adjustment plates 10 are slidably connected to both sides of the support plate 9. A first through groove 11 is formed on the side wall of the adjustment plate 10. A synchronization plate 12 is fixedly connected to the side wall of each of the multiple equidistant second guide plates 8. One end of the synchronization plate 12 is inside the first through groove 11, and a second through groove 13 is formed at the top of one end of the synchronization plate 12. A slide rod 14 is slidably connected inside the second through groove 13, and the slide rod 14 is fixedly connected to the first through groove 11. Between the inner walls, the side wall of the blower head 5 is fixedly connected to the box body 15, the inner wall of the box body 15 is rotatably connected to the push block 16, the push block 16 is elliptical in shape, the inner wall of the box body 15 is slidably connected to both sides of the push block 16, the toothed plate 17 is shaped like a concave, the opposite ends of the two toothed plates 17 are fixedly connected to the spring 18, the end of the spring 18 away from the toothed plate 17 is fixedly connected to the inner wall of the box body 15, the shaft of the second guide plate 8 near the two sides of the first guide plate 7 passes through the inner wall of the box body 15 and is fixedly connected to the gear 19, the gear 19 meshes with the toothed plate 17, the shaft of the push block 16 passes through the outer wall of the box body 15 and is fixedly connected to the rotating handle 20;

[0026] First, the water-soluble film initially formed in the external production equipment passes through the through-holes 26 on both sides of the drying chamber 3 in sequence, and bypasses the three guide rollers 27 arranged in an L-shape inside the drying chamber 3, ensuring that the water-soluble film forms a certain path inside the drying chamber 3, extending its residence time, thereby improving drying efficiency.

[0027] Subsequently, depending on the required width of the water-soluble film to be dried, the operator can manually adjust the angle of the second guide plate 8 inside the blower head 5. By rotating the handle 20, the shaft and the fixedly connected push block 16 will rotate together. Since the push block 16 is elliptical, its outer wall will push the rollers 21 located on both sides during the rotation. The rollers 21 will further drive the toothed plate 17 to slide towards each other along the inner wall of the box 15 and gradually move away from the compression spring 18. The toothed plate 17 and the gear 19 mesh with each other, so the sliding of the toothed plate 17 drives the gear 19 to rotate.

[0028] Gear 19 is fixedly connected to the shaft of the second guide plate 8, so that the second guide plate 8 rotates synchronously. Each side wall of the second guide plate 8 is connected to a synchronous plate 12. During the rotation, the slide rod 14 in the first through groove 11 is moved through the second through groove 13, and then the slide rod 14 drives the adjusting plate 10 fixedly connected to it to move.

[0029] After the adjusting plate 10 is rotated, the multiple second guide plates 8 move away from the first guide plate 7, thereby expanding the hot air blowing area to accommodate a wider water-soluble film and improve the coverage and drying uniformity of the hot air. Conversely, if the operator rotates the rotating handle 20 in the opposite direction, the toothed plate 17 is pushed by the spring 18, and the toothed plate 17 slides inward, so that the second guide plates 8 gradually approach the first guide plate 7, forming a blowing effect with a more concentrated hot air stream and a smaller wind direction angle, which is suitable for drying a narrower water-soluble film.

[0030] After adjustment, start the hot air blower 6 and send hot air into the blower head 5 through the drying air duct 4. Then, blow the hot air onto the surface of the water-soluble film through the adjusted guide structure. Since this equipment is equipped with three hot air blowers 6, which are distributed at the top, bottom and side walls of the drying chamber 3 respectively, they can simultaneously and evenly send air to the upper, lower and side of the water-soluble film, which significantly improves the drying efficiency and the uniformity of hot air distribution.

[0031] This adjustment mechanism can flexibly adjust the air guide angle according to actual drying needs, so that hot air is concentrated or diffused, significantly improving the adaptability and practical effect of drying, and is especially suitable for water-soluble film drying processes with a large range of width variations.

[0032] Further, see attached document. Figure 5 As shown, two toothed plates 17 are rotatably connected to rollers 21 near the outer wall of the push block 16. The outer wall of the rollers 21 is in contact with the outer wall of the push block 16, which effectively reduces the friction between the push block 16 and the toothed plates 17 when the push block 16 rotates, thus extending the service life of the device.

[0033] Further, see attached document. Figure 5 As shown, the outer wall of the rotary handle 20 is threaded with a threaded rod 22. The bottom end of the threaded rod 22 passes through the bottom of the rotary handle 20. When the threaded rod 22 rotates, the bottom end of the threaded rod 22 abuts against the top of the box 15. This ensures that after the adjustment mechanism is adjusted, the rotary handle 20 generates a stable axial thrust through the threaded rod 22, preventing the structure inside the adjustment mechanism from loosening when the rotary handle 20 shakes or rotates.

[0034] Further, see attached document. Figure 1 As shown, the top of the drying chamber 3 is connected to a dehumidification channel 23. A dehumidification fan 24 is fixedly installed on the top of the dehumidification channel 23 to remove moisture from the drying chamber 3. This effectively removes the moisture generated during the drying process, prevents moisture from circulating and stagnating inside the drying chamber 3, improves the dryness of the drying environment, facilitates the rapid dehydration and formation of the water-soluble film, improves drying efficiency and finished product quality, and prevents moisture from affecting product performance.

[0035] Further, see attached document. Figure 1As shown, the side wall of the drying oven 3 is equipped with a switch door 25 with a rotating handle 20 that can be opened, which makes it convenient for the operator to adjust the angle of the second guide plate 8. At the same time, it allows the operator to directly open the door to inspect and maintain the operation status of the water-soluble film, the guide roller 27 and the structure of the guide plate inside the drying oven 3 without disassembling the equipment, thus improving the operability and maintenance convenience of the equipment.

[0036] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0037] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-channel drying duct structure for water-soluble film production, comprising a support base (1), characterized in that: A support frame (2) is fixedly connected to the top of the support base (1). A drying box (3) is fixedly connected to the middle part of the support frame (2). The drying box (3) has openings (26) on both sides for the water-soluble film to pass through. Three guide rollers (27) are rotatably connected inside the drying box (3). The three guide rollers (27) are distributed in an L-shape. Three drying air ducts (4) are fixedly connected to the outer wall of the support base (1). The three drying air ducts (4) are distributed on the top, bottom and side wall of the drying box (3). One end of each of the three drying air ducts (4) is inserted into the interior of the drying box (3). A blower head (5) is fixedly connected to the end of the drying air duct (4) near the interior of the drying box (3). A hot air blower (6) for drying the water-soluble film is fixedly connected to the end of the drying air duct (4) away from the drying box (3). An adjustment mechanism for adjusting the angle of the airflow from the drying air duct (4) to the water-soluble film is provided in the blower head (5) inside the drying air duct (4).

2. The multi-channel drying duct structure for water-soluble film production according to claim 1, characterized in that, The adjustment mechanism includes a first guide plate (7) fixedly connected to the middle part of the inner wall of the blower head (5). Multiple second guide plates (8) are rotatably distributed at equal intervals on both sides of the inner wall of the blower head (5) near the first guide plate (7). A support plate (9) is fixedly connected to the side wall of the first guide plate (7). An adjustment plate (10) is slidably connected to both sides of the support plate (9). A first through groove (11) is opened on the side wall of the adjustment plate (10). A synchronization plate (12) is fixedly connected to the side wall of the multiple equal-distance and uniform second guide plates (8). One end of the synchronization plate (12) is inside the first through groove (11). A second through groove (13) is opened at the top of one end of the synchronization plate (12). A slide rod (14) is slidably connected inside the second through groove (13). The slide rod (14) is fixedly connected between the inner walls of the first through groove (11).

3. The multi-channel drying duct structure for water-soluble film production according to claim 2, characterized in that, The blower head (5) is fixedly connected to a box body (15) on its side wall. The inner wall of the box body (15) is rotatably connected to a push block (16). The push block (16) is elliptical in shape. The inner wall of the box body (15) is slidably connected to toothed plates (17) on both sides near the push block (16). The toothed plates (17) are U-shaped. The opposite ends of the two toothed plates (17) are fixedly connected to springs (18). The end of the spring (18) away from the toothed plates (17) is fixedly connected to the inner wall of the box body (15). The shaft of the second guide plate (8) near the first guide plate (7) passes through the inner wall of the box body (15) and is fixedly connected to a gear (19). The gear (19) meshes with the toothed plates (17). The shaft of the push block (16) passes through the outer wall of the box body (15) and is fixedly connected to a rotating handle (20).

4. The multi-channel drying duct structure for water-soluble film production according to claim 3, characterized in that, Both of the toothed plates (17) are rotatably connected to rollers (21) near the outer wall of the push block (16), and the outer wall of the rollers (21) is in contact with the outer wall of the push block (16).

5. The multi-channel drying duct structure for water-soluble film production according to claim 3, characterized in that, The outer wall of the rotating handle (20) is threaded with a threaded rod (22). The bottom end of the threaded rod (22) passes through the bottom of the rotating handle (20). When the threaded rod (22) rotates, the bottom end of the threaded rod (22) abuts against the top of the box body (15).

6. The multi-channel drying duct structure for water-soluble film production according to claim 1, characterized in that, The top of the drying box (3) is connected to a dehumidification channel (23), and a dehumidification fan (24) for discharging moisture from the drying box (3) is fixedly installed on the top of the dehumidification channel (23).

7. The multi-channel drying duct structure for water-soluble film production according to claim 5, characterized in that, The drying oven (3) is provided with a switch door (25) on its side wall, which can be opened and rotated by a rotating handle (20).

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