A base film unwinding device for water-soluble film production

Abstract

This utility model relates to the field of water-soluble film production technology and discloses a base film unwinding device for water-soluble film production. The device includes a support assembly, which comprises a support rod with extension rods movably connected to both ends. The extension rods can extend and retract within the support rod according to the length of the roller used for winding the water-soluble film, adapting to rollers of different lengths. An air jet assembly is provided at the front of the support assembly to assist in the winding and unwinding of the water-soluble film. The air jet assembly blows hot air onto the surface of the water-soluble film, removing impurities and drying the film simultaneously. Through a combination of tension spring and sliding block in the limiting mechanism, the rotating roller automatically adjusts its position according to changes in the film roll diameter during winding or unwinding, maintaining the film surface in contact with the auxiliary roller at all times. This design effectively avoids the problems of film wrinkling, misalignment, or breakage caused by sudden tension changes in traditional equipment, significantly improving roll quality and production continuity.

Description

Technical Field

[0001] This utility model relates to the field of water-soluble film production technology, specifically to a base film unwinding device for water-soluble film production. Background Technology

[0002] Water-soluble films, as an environmentally friendly functional material, are widely used in pharmaceuticals, textiles, agriculture, and food packaging. Their complete solubility in aqueous solutions gives them irreplaceable advantages in specific applications. In the production process of water-soluble films, the unwinding and rewinding of the base film are key steps affecting film quality and production efficiency. The stability, adjustability, and auxiliary functions of the unwinding device directly affect the smoothness, cleanliness, and subsequent processing effects of the film. Currently, traditional water-soluble film unwinding devices are prone to unstable film surface tension during the unwinding or rewinding process due to the dynamic changes in the film roll, which can lead to problems such as film wrinkling, displacement, or even breakage.

[0003] Furthermore, impurities or residual moisture may adhere to the surface of the water-soluble membrane during production. If not treated promptly, this can not only affect the membrane's appearance but also reduce its solubility and reliability. Although some existing equipment is equipped with simple cleaning or drying structures, the airflow distribution is often uneven, resulting in limited treatment effectiveness and failing to meet the needs of high-quality water-soluble membrane production. Utility Model Content

[0004] To achieve the above objectives, the present invention provides the following technical solution: a base film unwinding device for water-soluble film production, comprising a support assembly, the support assembly comprising a support rod, the two ends of which are movably sleeved with a first extension rod, the first extension rod being able to extend and retract within the support rod according to the length of the roller for winding the water-soluble film, so as to be compatible with rollers of different lengths for use.

[0005] The front side of the support assembly is equipped with an air jet assembly for assisting in the winding and unwinding of the water-soluble film. The air jet assembly blows hot air onto the surface of the water-soluble film, removing impurities from the surface of the water-soluble film while also drying the water-soluble film.

[0006] Both ends of the support assembly are provided with connecting components that provide support and angle adjustment. Each connecting component includes a control mechanism installed at the front end of the first extension rod for adjusting the support angle, an extension mechanism installed on the side of the control mechanism for adjusting the support length, and an adaptive displacement adjustment distance limiting mechanism installed at the front end of the extension mechanism.

[0007] Between the two sets of connecting components are roller assemblies for winding and unwinding the water-soluble film and limiting assemblies for assisting in winding and unwinding the water-soluble film.

[0008] As a further improvement to the above solution, both ends of the support rod are provided with limiting grooves, and the tail end of the first extension rod is fixed with a limiting button, which is slidably connected in the limiting groove.

[0009] Both ends of the support rod are threaded with retaining screws, and the bottom end of the retaining screws is attached to the corresponding position on the side of the first extension rod.

[0010] With the above technical solution, when adjusting the length of the first extension rod, the limiting button slides in the limiting groove, thereby improving the stability of the length adjustment of the first extension rod. After the adjustment is completed, the bottom end of the fixing screw is tightly attached to the corresponding position on the side of the first extension rod to fix the adjusted length of the first extension rod.

[0011] As a further improvement to the above solution, the jet assembly includes a mounting panel fixed to the front side of the support rod, an air outlet on the mounting panel, and an air inlet connector communicating with the air outlet.

[0012] With the above technical solution, the air outlet is elongated and is supplied with air through the pipe of the external air supply device connected to the air inlet connector. After the gas is pressurized inside the installation panel, it is sprayed out from the air outlet and blown onto the surface of the membrane.

[0013] As a further improvement to the above scheme, the control mechanism includes a collar that is movably sleeved on the front end of the first extension rod, and a positioning rod is threadedly connected to the side of the collar, with the front end of the positioning rod abutting against the corresponding position on the side of the first extension rod.

[0014] The above technical solution allows for the overall tilt adjustment of the connecting assembly by rotating the collar on the side of the first extension rod. After adjustment, the positioning rod is rotated so that its bottom end is tightly attached to the corresponding position on the side of the first extension rod, thereby fixing the tilted angle of the connecting assembly.

[0015] As a further improvement to the above solution, the limiting mechanism includes a side plate with a limiting groove.

[0016] The roller assembly includes a rotating roller, with rotating gears fixed at both ends of the rotating roller. A mounting button is rotatably connected to one end of the rotating gear, and a sliding block is fixed to one end of the mounting button.

[0017] The sliding block is slidably connected within the limiting groove. With the above technical solution, the diameter of the sliding block matches the width of the limiting groove, and the sliding block...

[0018] As a further improvement to the above solution, a stabilizing sleeve is fixed inside the limiting groove, and a tension spring is movably sleeved on the side of the stabilizing sleeve.

[0019] The sliding block is movably sleeved on the side of the stabilizing sleeve rod and fits against one end of the tension spring.

[0020] Through the above technical solution, the tension spring is used to push the sliding block, so that the rotating roller moves closer to the auxiliary roller in the limiting assembly, thereby making the water-soluble film on the side of the rotating roller adhere to the side of the auxiliary roller for stable opening and closing.

[0021] As a further improvement to the above solution, connection holes are provided on the side plate.

[0022] The limiting component includes an auxiliary roller, with connecting buttons fixed at both ends of the auxiliary roller. The connecting buttons are rotatably connected to the connecting holes.

[0023] Through the above technical solution, the auxiliary roller is attached to the outer surface of the water-soluble film wound on the side of the rotating roller, ensuring the stability of the water-soluble film during the winding and unwinding process and avoiding deviation and wrinkles.

[0024] As a further improvement to the above solution, the extension mechanism includes a sleeve, with second extension rods movably sleeved at both ends of the sleeve. The front end of one of the second extension rods is fixed to a collar, and the front end of the other second extension rod is fixed to a side plate.

[0025] Through the above technical solution, the second extension rod is used to adjust the distance between the collar and the side plate, so that the rotating roller and the auxiliary roller can perform the take-up and take-down operations on the water-soluble film at different positions.

[0026] As a further improvement to the above scheme, both ends of the sleeve are rotatably connected to adjusting rings, which are threaded to the side of the second extension rod.

[0027] The above technical solution allows for length adjustment of the second extension rod by rotating the adjusting ring in both clockwise and counterclockwise directions and utilizing the force of the threaded connection between the adjusting ring and the side of the second extension rod.

[0028] As a further improvement to the above solution, a right-angle plate is fixed to the side of the mounting button, a drive motor is fixed to the right-angle plate, a drive gear is fixed to the output end of the drive motor, and the drive gear and the rotating gear mesh with the transmission belt on the side.

[0029] Through the above technical solution, the right-angle plate is used to support the drive motor above, so that when the drive motor is operating, its output end drives the drive gear to rotate in the forward or reverse direction, and drives the rotating gear to rotate through the transmission belt, so that the rotating gear rotates.

[0030] Compared with the prior art, the present invention provides a base film unwinding device for water-soluble film production, which has the following beneficial effects: 1. The base film unwinding device for water-soluble film production uses an arc-shaped air outlet design for the jet assembly, which can blow hot air evenly to the surface of the water-soluble film in a fan shape. This not only effectively removes impurities attached to the surface, but also performs preliminary drying treatment on the film surface, preventing impurities from embedding or moisture residue from affecting the film's solubility and appearance quality.

[0031] 2. This base film unwinding device for water-soluble film production utilizes a combination of tension springs and sliding blocks in its limiting mechanism. This allows the rotating rollers to automatically adjust their position according to changes in the film roll diameter during winding or unwinding, maintaining constant contact between the film surface and the auxiliary rollers. This design effectively avoids the problems of film wrinkling, misalignment, or breakage caused by sudden tension changes in traditional equipment, significantly improving roll quality and production continuity.

[0032] 3. The base film unwinding device for water-soluble film production uses a drive motor to achieve bidirectional rotation control through gears and a transmission belt, making the switching between winding and unwinding actions more flexible; the components adopt a modular connection method, which is convenient for disassembly, maintenance or replacement; the overall device is compact in structure and occupies little space while ensuring complete functionality, and is suitable for various production layout environments. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the overall structure of the device of this utility model; Figure 2 This is a schematic diagram of the connection structure of the connecting component and auxiliary component of this utility model; Figure 3 This is a schematic diagram of the connection structure between the support component and the jet component of this utility model; Figure 4 This is a schematic diagram of the overall structure of the connecting component of this utility model; Figure 5 This is a schematic diagram of the overall structure of the roller assembly of this utility model.

[0034] The attached diagram lists the components represented by each number as follows: 1. Support assembly; 11. Support rod; 12. First extension rod; 13. Restricting groove; 14. Restricting button; 15. Fixing screw; 2. Jet assembly; 21. Mounting panel; 22. Air outlet; 23. Air inlet connector; 3. Connecting assembly; 31. Adjusting mechanism; 311. Collar; 312. Positioning rod; 32. Extension mechanism; 321. Sleeve; 322. Second extension rod; 323. Adjusting ring; 33. Limiting mechanism; 331. Side plate; 332. Limiting groove; 333. Stabilizing sleeve; 334. Tension spring; 335. Connecting hole; 4. Roller assembly; 41. Rotating roller; 42. Rotating gear; 43. Mounting button; 44. Sliding block; 45. Right-angle plate; 46. Drive motor; 47. Drive gear; 48. Transmission toothed belt; 5. Limiting component; 51. Auxiliary roller; 52. Connecting button. Detailed Implementation

[0035] 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. Example 1

[0036] Please see Figure 1 - Figure 5 As shown, the base film unwinding device for water-soluble film production proposed in this embodiment includes a support assembly 1. The support assembly 1 includes a support rod 11. The two ends of the support rod 11 are movably sleeved with a first extension rod 12. The first extension rod 12 can extend and retract within the support rod 11 according to the length of the roller for winding the water-soluble film, so as to be compatible with rollers of different lengths.

[0037] The front side of the support component 1 is provided with an air jet component 2 for assisting in the winding and unwinding of the water-soluble film. The air jet component 2 blows hot air onto the surface of the water-soluble film, which removes impurities from the surface of the water-soluble film and dries the water-soluble film at the same time.

[0038] Both ends of the support component 1 are provided with connecting components 3 for providing support and angle adjustment. Each connecting component 3 includes a control mechanism 31 installed at the front end of the first extension rod 12 for adjusting the support angle, an extension mechanism 32 installed on the side of the control mechanism 31 for adjusting the support length, and an adaptive displacement adjustment distance limiting mechanism 33 installed at the front end of the extension mechanism 32.

[0039] A roller assembly 4 for winding and unwinding the water-soluble film and a limiting assembly 5 for assisting in winding and unwinding the water-soluble film are provided between the two sets of connecting components 3.

[0040] Furthermore, both ends of the support rod 11 are provided with limiting grooves 13, and the tail end of the first extension rod 12 is fixed with a limiting button 14, which is slidably connected in the limiting groove 13.

[0041] Both ends of the support rod 11 are threaded with retaining screws 15, and the bottom end of the retaining screws 15 is attached to the corresponding position on the side of the first extension rod 12.

[0042] More specifically, when adjusting the length of the first extension rod 12, the limiting button 14 slides within the limiting groove 13, thereby improving the stability of the length adjustment of the first extension rod 12. After the adjustment is completed, the bottom end of the fixing screw 15 is pressed against the corresponding position on the side of the first extension rod 12 to fix the adjusted length of the first extension rod 12.

[0043] Furthermore, the jet assembly 2 includes a mounting panel 21 fixed to the front side of the support rod 11, an air outlet 22 is provided on the mounting panel 21, and an air inlet connector 23 communicating with the air outlet 22.

[0044] More specifically, the air outlet 22 is elongated and is connected to the air inlet connector 23 through the pipe of the external air supply device to supply air inward. After the gas is pressurized inside the mounting panel 21, it is sprayed out from the air outlet 22 and blown onto the surface of the membrane.

[0045] It should be further explained that the air outlet 22 has a slightly curved design, so that the gas is blown out in a fan shape, which can blow away water and debris from both sides of the membrane surface.

[0046] Furthermore, the control mechanism 31 includes a collar 311 that is movably sleeved on the front end of the first extension rod 12, and a positioning rod 312 is threadedly connected to the side of the collar 311, with the front end of the positioning rod 312 fitting against the corresponding position on the side of the first extension rod 12.

[0047] More specifically, by rotating the collar 311 on the side of the first extension rod 12, the overall angle of the connecting assembly 3 can be adjusted. After adjustment, by rotating the positioning rod 312, its bottom end is pressed against the corresponding position on the side of the first extension rod 12, thereby fixing the angle of the connecting assembly 3 after tilting.

[0048] Furthermore, the limiting mechanism 33 includes a side plate 331, on which a limiting groove 332 is formed.

[0049] The roller assembly 4 includes a rotating roller 41, with rotating gears 42 fixed at both ends of the rotating roller 41. A mounting button 43 is rotatably connected to one end of the rotating gear 42, and a sliding block 44 is fixed to one end of the mounting button 43.

[0050] Sliding block 44 is slidably connected within limiting groove 332 More specifically, the diameter of the sliding block 44 matches the width within the limiting groove 332, and the sliding block...

[0051] Furthermore, a stabilizing sleeve rod 333 is fixed inside the limiting slide groove 332, and a tension spring 334 is movably sleeved on the side of the stabilizing sleeve rod 333.

[0052] The sliding block 44 is movably sleeved on the side of the stabilizing sleeve 333 and fits against one end of the tension spring 334.

[0053] More specifically, the tension spring 334 is used to push the sliding block 44, causing the rotating roller 41 to move closer to the auxiliary roller 51 in the limiting assembly 5, so that the water-soluble film on the side of the rotating roller 41 adheres to the side of the auxiliary roller 51 for stable opening and closing.

[0054] Furthermore, a connection hole 335 is provided on the side plate 331.

[0055] The limiting component 5 includes an auxiliary roller 51, with connecting buttons 52 fixed at both ends of the auxiliary roller 51. The connecting buttons 52 are rotatably connected in the connecting hole 335.

[0056] More specifically, the auxiliary roller 51 is attached to the outer surface of the water-soluble film wound on the side of the rotating roller 41 to ensure the stability of the water-soluble film during the winding and unwinding process and to avoid deviation and wrinkles.

[0057] Furthermore, the extension mechanism 32 includes a sleeve 321, with second extension rods 322 movably sleeved at both ends of the sleeve 321. The front end of one second extension rod 322 is fixed to the collar 311, and the front end of the other second extension rod 322 is fixed to the side plate 331.

[0058] More specifically, the second extension rod 322 is used to adjust the distance between the collar 311 and the side plate 331, so that the rotating roller 41 and the auxiliary roller 51 can perform the take-up and take-down operations on the water-soluble film at different positions.

[0059] Furthermore, both ends of the sleeve 321 are rotatably connected to adjusting rings 323, which are threadedly connected to the side of the second extension rod 322.

[0060] More specifically, by rotating the adjusting ring 323 clockwise and counterclockwise, the length of the second extension rod 322 can be adjusted by utilizing the force of the threaded connection between the adjusting ring 323 and the side of the second extension rod 322.

[0061] Furthermore, a right-angle plate 45 is fixed to the side of the mounting button 43, and a drive motor 46 is fixed on the right-angle plate 45. A drive gear 47 is fixed to the output end of the drive motor 46, and the drive gear 47 and the rotating gear 42 mesh with the transmission belt 48 on the side.

[0062] More specifically, the right-angle plate 45 is used to support the drive motor 46 above, so that when the drive motor 46 is operating, its output end drives the drive gear 47 to rotate clockwise or counterclockwise, and drives the rotating gear 42 to rotate through the transmission belt 48, so that the rotating roller 41 rotates.

[0063] It should be further explained that the output end of the drive motor 46 has a bidirectional rotation function. During operation, the output end drives the rotating roller 41 to rotate in both directions. When rotating in the forward direction, it realizes the winding of the water-soluble film, while in the reverse direction, it releases the water-soluble film outward.

[0064] The working principle of the base film unwinding device for water-soluble film production proposed in this embodiment is as follows: During use, when the drive motor 46 operates, its output end drives the drive gear 47 to rotate clockwise or counterclockwise, and through the transmission belt 48, it drives the rotating gear 42 to rotate, causing the rotating roller 41 to rotate, thus performing the unwinding and winding operation of the water-soluble film. During winding, as the water-soluble film on the side of the rotating roller 41 gradually thickens, under the pushing force of the tension spring 334, the water-soluble film remains adhered to the side of the auxiliary roller 51 for winding, while the rotating roller 41... The sliding block 44 slides within the limiting groove 332 and gradually moves away from the auxiliary roller 51. During unwinding, under the push of the tension spring 334 and the gradual thinning of the water-soluble film on the side of the rotating roller 41, the water-soluble film is conveyed while maintaining its contact with the side of the auxiliary roller 51. At the same time, the rotating roller 41 gradually moves closer to the auxiliary roller 51, keeping the water-soluble film in a tight and stable state for conveying. During the winding and unwinding process, gas is blown in a fan shape onto the surface of the water-soluble film through the air outlet 22 to prevent wrinkles from forming during winding and unwinding.

[0065] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A base film unwinding device for water-soluble film production, characterized in that, It includes a support assembly (1), which includes a support rod (11), and the two ends of the support rod (11) are movably sleeved with a first extension rod (12). The front side of the support assembly (1) is provided with an air jet assembly (2) for assisting in the winding and unwinding of the water-soluble film. Both ends of the support component (1) are provided with connecting components (3) that provide support and angle adjustment. Each connecting component (3) includes a control mechanism (31) installed at the front end of the first extension rod (12) for adjusting the support angle, an extension mechanism (32) for adjusting the support length installed on the side of the control mechanism (31), and an adaptive displacement adjustment distance limiting mechanism (33) installed at the front end of the extension mechanism (32). A roller assembly (4) for winding and unwinding the water-soluble film and a limiting assembly (5) for assisting in winding and unwinding the water-soluble film are provided between the two sets of connecting components (3).

2. The base film unwinding device for water-soluble film production according to claim 1, characterized in that: Both ends of the support rod (11) are provided with limiting grooves (13), and the tail end of the first extension rod (12) is fixed with a limiting button (14), which is slidably connected in the limiting groove (13). Both ends of the support rod (11) are threaded with retaining screws (15), and the bottom end of the retaining screws (15) is attached to the corresponding position on the side of the first extension rod (12).

3. The base film unwinding device for water-soluble film production according to claim 1, characterized in that: The jet assembly (2) includes a mounting panel (21) fixed to the front side of the support rod (11), an air outlet (22) is provided on the mounting panel (21), and an air inlet connector (23) communicating with the air outlet (22).

4. The base film unwinding device for water-soluble film production according to claim 1, characterized in that: The control mechanism (31) includes a collar (311) that is movably sleeved on the front end of the first extension rod (12), and a positioning rod (312) is threadedly connected to the side of the collar (311). The front end of the positioning rod (312) is attached to the corresponding position on the side of the first extension rod (12).

5. The base film unwinding device for water-soluble film production according to claim 1, characterized in that: The limiting mechanism (33) includes a side plate (331) with a limiting groove (332) provided on the side plate (331). The roller assembly (4) includes a rotating roller (41), with rotating gears (42) fixed at both ends of the rotating roller (41), a mounting button (43) rotatably connected to one end of the rotating gear (42), and a sliding block (44) fixed to one end of the mounting button (43). The sliding block (44) is slidably connected in the limiting groove (332).

6. The base film unwinding device for water-soluble film production according to claim 5, characterized in that: A stabilizing sleeve rod (333) is fixed inside the limiting slide groove (332), and a tension spring (334) is movably sleeved on the side of the stabilizing sleeve rod (333). The sliding block (44) is movably sleeved on the side of the stabilizing sleeve (333) and attached to one end of the tension spring (334).

7. The base film unwinding device for water-soluble film production according to claim 5, characterized in that: A connection hole (335) is provided on the side plate (331); The limiting component (5) includes an auxiliary roller (51), and the two ends of the auxiliary roller (51) are fixed with connecting buttons (52), which are rotatably connected in the connecting hole (335).

8. The base film unwinding device for water-soluble film production according to claim 1, characterized in that: The extension mechanism (32) includes a sleeve (321), with second extension rods (322) movably sleeved at both ends of the sleeve (321). The front end of one of the second extension rods (322) is fixed on a collar (311), and the front end of the other second extension rod (322) is fixed on a side plate (331).

9. The base film unwinding device for water-soluble film production according to claim 8, characterized in that: Both ends of the sleeve (321) are rotatably connected to adjusting rings (323), and the adjusting rings (323) are threadedly connected to the side of the second extension rod (322).

10. The base film unwinding device for water-soluble film production according to claim 5, characterized in that: A right-angle plate (45) is fixed to the side of the mounting button (43), and a drive motor (46) is fixed on the right-angle plate (45). A drive gear (47) is fixed to the output end of the drive motor (46), and the drive gear (47) and the side of the rotating gear (42) mesh with the transmission belt (48).

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