Dyeing device with transverse stirring mechanism
By setting up a transmission system of guide rollers and stirring rollers in the dyeing tank, the problem of uneven dyeing liquid concentration is solved, uniform dyeing of PVA film is achieved, and the consistency of optical performance is improved.
Patent Information
- Application Number
- CN202422664817.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-01
AI Technical Summary
During the PVA film dyeing process, uneven dyeing liquid concentration leads to uneven dyeing of the film, especially for wide width films where the middle part is less colored and the two sides are darker colored, affecting the consistency of optical properties.
Multiple guide rollers and transverse stirring components are set in the dyeing tank, including W-shaped distributed stirring rollers and a transmission system. The stirring rollers are driven by a driving motor to rotate and revolve, and the transmission gears are engaged to achieve stirring in different directions, thereby improving the uniformity of the dyeing liquid.
Through the rotation of the stirring roller, the dyeing liquid is effectively transported from both ends to the middle, ensuring the uniformity of the membrane dyeing, improving the uniformity of the dyeing liquid, and ensuring uniform coloring of the membrane.
Smart Images

Figure CN223367330U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of dyeing processing, in particular to a dyeing device with a horizontal stirring mechanism. Background Art
[0002] During the production of polarizer raw films, wide-width PVA films need to be dyed to achieve their light-blocking function. Combined with the next stretching process, the grating polarization characteristics can be achieved.
[0003] The dyeing process in the actual production process is to unwind a wide roll of film material in a single layer and pass it through a tank filled with dyeing liquid. After a certain period of soaking, the components of the dyeing liquid will adhere to the PVA film, achieving the purpose of dyeing.
[0004] The problems with the existing model are as follows:
[0005] During use, the dye solution's concentration gradually decreases due to adhesion to the PVA membrane. Therefore, it's necessary to continuously circulate high-concentration dye solution to maintain a stable concentration. However, due to the wide width of the membrane, especially when the width exceeds 2 meters, it's difficult for the dye solution to reach the center of the tank directly through the pipes originally installed on both sides of the tank. Furthermore, the wide width of the membrane significantly impedes the upward and downward movement of the solution within the tank. This obstruction is unavoidable and further exacerbates the problem of uneven dye solution concentration.
[0006] Uneven solution concentration results in uneven dyeing of the PVA film, with less color in the center and darker color on the sides, leading to inconsistent optical properties and having a significant impact on the final product. Utility Model Content
[0007] In order to overcome the above-mentioned shortcomings, the utility model provides a technical solution that can solve the above-mentioned problems.
[0008] A dyeing device with a transverse stirring mechanism comprises a dyeing tank;
[0009] The interior of the dyeing tank is provided with a plurality of guide rollers distributed in an M-shaped manner, and a horizontal stirring component is also provided inside the dyeing tank;
[0010] The horizontal stirring assembly includes a plurality of stirring rollers distributed in a W shape, which are interspersed between the guide rollers. A plurality of stirring blades are provided on the output direction of each stirring roller. A transmission wheel is provided at both ends of each stirring roller and rotates with the dyeing tank body. The two ends of the stirring roller are connected to one side of the transmission wheel.
[0011] It also includes a driving motor, which is installed on one side of the dyeing tank body. A driving pulley is provided on the rotating shaft of the driving motor. A driven pulley is provided on the side of the dyeing tank body away from the driving motor. The outer sides of the driving pulley, the driven pulley and the transmission wheel are respectively provided with transmission belt sleeves.
[0012] As a further solution of the utility model: a tensioning wheel is rotatably provided on one side of the upper end of the transmission belt sleeve close to the driving pulley and the driven pulley, and an electric telescopic rod is provided on the upper end of the tensioning wheel.
[0013] As a further solution of the present invention: a transmission gear is provided on the outer side of each transmission wheel, and every two adjacent transmission gears are meshed with each other. A driving gear is provided on the rotating shaft of the drive motor, and the driving gear and the transmission gear are meshed with each other.
[0014] As a further solution of the present invention, a stirring plate is obliquely provided on the outer end of each stirring blade close to the rotation direction.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. By arranging multiple stirring rollers between the guide rollers inside the dyeing tank, the driving motor drives the active pulley, the driven pulley and the transmission wheel to rotate through the transmission belt sleeve, thereby driving the stirring roller to rotate inside the dyeing tank. The stirring roller is arranged on one side of the transmission wheel, so that the stirring roller can rotate and revolve inside the dyeing tank, thereby transporting the concentrated solution at both ends of the dyeing tank to the middle, improving the uniformity of the dyeing solution, and thus ensuring the uniform dyeing of the film material;
[0017] 2. By arranging a transmission gear on the outside of the transmission wheel and utilizing the mutual engagement of two adjacent transmission gears, the stirring rollers on the upper and lower sides can rotate in different directions, thereby effectively improving the uniformity of the dyeing liquid and ensuring uniform dyeing of the membrane material.
[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the following briefly introduces the drawings required for use in the embodiment or the prior art description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0020] Figure 1 It is a structural diagram of the present utility model.
[0021] Figure 2 It is a top view of the present utility model.
[0022] Figure 3 It is a structural diagram of embodiment 2.
[0023] Figure 4 It is a structural diagram of the stirring roller.
[0024] As shown in the figure: 1. Dyeing tank; 2. Guide roller; 3. Stirring roller; 4. Stirring blade; 5. Transmission wheel; 6. Driving motor; 7. Driving pulley; 8. Driven pulley; 9. Transmission belt sleeve; 10. Tensioning pulley; 11. Electric telescopic rod; 12. Transmission gear; 13. Driving gear; 14. Stirring plate. DETAILED DESCRIPTION
[0025] The following will be combined with the 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.
[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.
[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.
[0029] See also Figure 1-4 , a dyeing device with a transverse stirring mechanism, comprising a dyeing tank body 1;
[0030] The interior of the dyeing tank body 1 is provided with a plurality of guide rollers 2 distributed in an M-shaped manner, and the interior of the dyeing tank body 1 is also provided with a horizontal stirring component;
[0031] The horizontal stirring assembly includes a plurality of stirring rollers 3 distributed in a W shape, and the stirring rollers 3 are interspersed between the guide rollers 2. A plurality of stirring blades 4 are respectively provided in the output direction of each stirring roller 3. A transmission wheel 5 is rotatably provided at both ends of each stirring roller 3 and rotates with the dyeing tank body 1. The two ends of the stirring roller 3 are respectively connected to one side of the transmission wheel 5.
[0032] It also includes a drive motor 6, which is installed on one side of the dyeing tank body 1. A driving pulley 7 is provided on the rotating shaft of the drive motor 6. A driven pulley 8 is provided on the side of the dyeing tank body 1 that rotates away from the drive motor 6. The outer sides of the driving pulley 7, the driven pulley 8 and the transmission wheel 5 are respectively provided with a transmission belt sleeve 9.
[0033] During use, the material is arranged around the guide roller 2 in the dyeing tank body 1, and the driving motor 6 drives the transmission wheel 5 to rotate through the active pulley 7, the driven pulley 8, and the transmission belt sleeve 9, thereby driving the stirring roller 3 to rotate in the dyeing tank body 1. The stirring roller 3 is arranged on one side of the transmission wheel 5, so that the stirring roller 3 can rotate and revolve in the dyeing tank body 1, so that the more concentrated solutions at both ends of the dyeing tank body 1 can be transported to the middle, thereby improving the uniformity of the dyeing liquid and ensuring the uniform dyeing of the film material.
[0034] As a further solution of the present invention, a tensioning wheel 10 is rotatably provided on one side of the upper end of the transmission belt sleeve 9 close to the driving pulley 7 and the driven pulley 8, and an electric telescopic rod 11 is provided on the upper end of the tensioning wheel 10.
[0035] The tensioning wheel 10 is driven by the electric telescopic rod 11 to move up and down, thereby adjusting the tightness of the driving pulley 9.
[0036] Embodiment 2: As a further solution of the present invention: a transmission gear 12 is provided on the outer side of each transmission wheel 5, and every two adjacent transmission gears 12 are meshed with each other. A driving gear 13 is provided on the rotating shaft of the drive motor 6, and the driving gear 13 and the transmission gear 12 are meshed with each other.
[0037] By arranging a transmission gear 12 on the outside of the transmission wheel 6 and utilizing the mutual meshing of two adjacent transmission gears 12, the stirring rollers 3 on the upper and lower sides can be rotated in different directions, thereby effectively improving the uniformity of the dyeing liquid and ensuring the uniform dyeing of the film material.
[0038] As a further solution of the present invention, a stirring plate 14 is provided obliquely on the outer end of each stirring blade 4 close to the rotation direction.
[0039] The solution in the dyeing tank 1 can be stirred better.
[0040] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.
[0041] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A dyeing device with a transverse stirring mechanism, characterized in that: Including dyeing tank body; The interior of the dyeing tank is provided with a plurality of guide rollers distributed in an M-shaped manner, and a horizontal stirring component is also provided inside the dyeing tank; The horizontal stirring assembly includes a plurality of stirring rollers distributed in a W shape, which are interspersed between the guide rollers. A plurality of stirring blades are provided on the output direction of each stirring roller. A transmission wheel is provided at both ends of each stirring roller and rotates with the dyeing tank body. The two ends of the stirring roller are connected to one side of the transmission wheel. It also includes a driving motor, which is installed on one side of the dyeing tank body. A driving pulley is provided on the rotating shaft of the driving motor. A driven pulley is provided on the side of the dyeing tank body away from the driving motor. The outer sides of the driving pulley, the driven pulley and the transmission wheel are respectively provided with transmission belt sleeves.
2. A dyeing device with a transverse stirring mechanism according to claim 1, characterized in that: Tension wheels are rotatably arranged on one side of the upper end of the transmission belt sleeve close to the driving pulley and the driven pulley, and an electric telescopic rod is arranged on the upper end of the tension wheel.
3. The dyeing device with a transverse stirring mechanism according to claim 1, characterized in that: A transmission gear is provided on the outer side of each transmission wheel, and every two adjacent transmission gears are meshed with each other. A driving gear is provided on the rotating shaft of the driving motor, and the driving gear and the transmission gear are meshed with each other.
4. The dyeing device with a transverse stirring mechanism according to claim 1, characterized in that: A stirring plate is obliquely arranged on the outer end of each stirring blade close to the rotation direction.