A decoloring device for polyester cloth
By introducing tension adjustment, rotation clamping, and fixing auxiliary mechanisms into the polyester fabric decolorization device, the problems of wrinkles in polyester fabric before dyeing and inconvenient tension roller position are solved, thereby improving the flatness of polyester fabric and the stability and efficiency of decolorization effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGYI DEYUAN TEXTILE CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-05-26
AI Technical Summary
Existing polyester fabric decolorization devices suffer from poorly designed tension control systems, which cause the polyester fabric to wrinkle easily before dyeing. Furthermore, the rotation position of the tension rollers is inconvenient, affecting product quality and production efficiency.
A decolorizing device for polyester fabric was designed, which adopts a tension adjustment mechanism, a rotary clamping mechanism and a fixing auxiliary mechanism. The tension roller is precisely controlled by a hydraulic cylinder and multiple sets of annular adjustment holes. Combined with the mechanical connection of the support tube, clamping rod and positioning spring rod, the stability and convenient adjustment of the tension roller are ensured.
It achieves precise control of polyester fabric tension, preventing wrinkles and deformation, improving the ease of operation and maintainability of the equipment, and ensuring the uniformity and efficiency of the decolorization process.
Smart Images

Figure CN224280768U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of decolorization technology, and more specifically, to a decolorization device for polyester fabric. Background Technology
[0002] In the polyester fabric processing of the textile industry, the decolorization process is a key step that directly affects the quality of the finished product and production efficiency. However, existing polyester fabric decolorization devices have several technical defects that urgently need to be addressed. Due to an unreasonable design of the tension control system, existing polyester fabric decolorization devices are prone to wrinkling before dyeing. Traditional devices use a fixed tension roller structure, which cannot dynamically adjust the tension distribution according to differences in fabric width and thickness, resulting in uneven stress on the edges and center of the fabric, forming localized wrinkles. During production, when the feed speed of the polyester fabric changes, existing devices lack a real-time response mechanism, resulting in significant instantaneous tension fluctuations and causing transverse wavy wrinkles on the fabric surface.
[0003] In traditional equipment, adjusting the position of the tension roller usually requires disassembling multiple fasteners, adjusting, and then reinstalling and fixing them. The whole process is time-consuming and requires professional tools. It lacks a precise angle positioning mechanism, and operators often rely on experience to judge, making it difficult to accurately reproduce the position of the tension roller. This leads to product quality fluctuations between batches. During the adjustment process, due to the lack of an effective temporary fixing device, the tension roller may move unexpectedly, which not only affects the adjustment accuracy but also poses a risk to personal safety. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] In view of the problems existing in the prior art, this utility model provides a decolorizing device for polyester fabric, so as to solve the technical problems mentioned in the background art, such as polyester fabric is prone to wrinkling before dyeing and the rotation position of the tension roller is inconvenient.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a decolorizing device for polyester fabric, comprising a main frame, a tension adjusting mechanism, a rotating clamping mechanism, and a fixing auxiliary mechanism. The tension adjusting mechanism includes a support base and a rotating frame. The support base is symmetrically installed at the top end of the main frame. The rotating frame is rotatably connected to the support base. A hydraulic cylinder is installed on the rotating frame. A push-pull frame is installed at one end of the hydraulic cylinder. A tension roller is installed on the push-pull frame. An adjusting disc is installed at one end of the rotating frame, and the adjusting disc has adjusting holes. Multiple sets of adjusting holes are arranged in a ring. The rotating clamping mechanism includes a support tube and a clamping rod. A clamping tube is rotatably installed at one end of the support tube. One end of the clamping rod can be directionally inserted into the support tube. A wall-adhering block is installed on the outer wall of the clamping rod. An inner rotating frame is installed at the top end of the inner wall of the clamping tube. A vertical frame is installed at the bottom end of the inner rotating frame. The vertical frame can be rotatably embedded into the wall-adhering block. A counter-compression spring is symmetrically installed on the wall-adhering block. A pre-solidification groove is provided on the vertical frame, and the counter-compression spring can extend into the pre-solidification groove.
[0008] The present invention is further configured such that the fixing auxiliary mechanism includes an outer sleeve and an outer fixing ring. The outer sleeve is installed at the bottom end of the side wall of the clamping tube, and the outer fixing ring is fixedly installed on the outer wall of the support tube. A positioning spring is installed horizontally on the outer fixing ring, and multiple sets of positioning spring rods are provided. A rotating plate is installed at the bottom end of the outer sleeve, and a positioning hole is opened on the rotating plate. The positioning spring rods can extend into the positioning holes on the rotating plate step by step.
[0009] The present invention is further configured such that an adjustment frame is installed on one side of the top end of the main frame, and an adjustment roller and a bottom roller are installed on the adjustment frame. The tension adjustment roller directly contacts the polyester fabric to evenly distribute the tension and prevent the fabric from wrinkling or deforming.
[0010] The present invention is further configured such that a fixed roller is installed at the top end of the main frame, and a decolorizing component is installed on one side of the top end of the main frame. The polyester fabric passes between the pressure adjusting roller and the bottom roller, and the fixed roller guides the polyester fabric smoothly into the processing flow to prevent deviation.
[0011] The present invention is further configured such that the bottom end face of the fixed roller contacts the top end face of the polyester fabric, and the bottom end face of the polyester fabric contacts the top end face of the tension roller, leading into the decolorizing assembly. The pressure regulating roller and the bottom roller control the pressure and flatness of the polyester fabric as it passes through, ensuring uniform decolorization effect.
[0012] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the support tube, the connecting plate is fixedly installed on the support base, and the snap-fit rod can pass through different adjustment holes and extend through the support base to engage with the support tube. The connecting plate connects the support tube and the support base, thereby enhancing the structural stability.
[0013] The present invention is further configured such that a limiting block is installed at one end of the locking rod, and one end of the limiting block is in contact with and pressed against one end face of the adjusting plate. The limiting block is installed at the end of the locking rod and is in contact with and pressed against the adjusting plate to prevent the locking rod from falling off or loosening.
[0014] The present invention is further configured such that an inner retaining ring is installed on the inner wall of the support tube, and a push-out spring is installed on the outer wall of the snap-fit rod, and one end of the push-out spring can contact the bottom end of the inner retaining ring. The push-out spring provides elastic return force to assist in the disassembly of the snap-fit rod.
[0015] (III) Beneficial Effects
[0016] Compared with the prior art, this utility model provides a decolorizing device for polyester fabric, which has the following features:
[0017] Beneficial effects:
[0018] This utility model is equipped with a tension adjustment mechanism. Through the coordinated work of the support base, rotating frame and hydraulic cylinder, the tension of polyester fabric is precisely controlled. The design of multiple sets of annular adjustment holes makes the angle adjustment more flexible and precise. The hydraulic cylinder provides stable thrust so that the tension roller can evenly distribute the pressure, effectively preventing the fabric from wrinkling and deforming, and ensuring that the fabric remains flat during the decolorization process.
[0019] This utility model is equipped with a rotating snap-fit mechanism. Through the combination of support tube, snap-fit tube and snap-fit rod, a stable and adjustable connection is achieved. The fitting and cooperation between the wall block and the vertical frame, as well as the locking design of the compression spring and the initial fixing groove, form a reliable mechanical connection, which not only ensures structural stability, but also facilitates adjustment and disassembly, thereby improving the ease of operation and maintenance of the equipment.
[0020] This utility model is equipped with a fixing auxiliary mechanism, which adopts the design of an outer sleeve, an outer fixing ring and multiple sets of positioning spring rods. This achieves precise positioning and stable rotation of the clamping pipe on the support pipe. The positioning holes on the rotating plate and the positioning spring rods cooperate step by step, making the angle adjustment more precise and controllable, preventing the equipment from accidentally loosening or shifting during operation, and further enhancing the stability and reliability of the entire device. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;
[0022] Figure 2 This is a schematic diagram of the tension adjustment mechanism in this utility model. Figure 1 ;
[0023] Figure 3 This is a schematic diagram of the tension adjustment mechanism in this utility model. Figure 2 ;
[0024] Figure 4 This is a schematic diagram of the rotating snap-fit mechanism and the fixing auxiliary mechanism in this utility model;
[0025] Figure 5 This is a schematic diagram of the internal structure of the rotating snap-fit mechanism and the fixing auxiliary mechanism in this utility model.
[0026] In the diagram: 1. Main frame; 2. Support base; 3. Rotating frame; 4. Hydraulic cylinder; 5. Push-pull frame; 6. Tension roller; 7. Adjusting disc; 8. Adjusting hole; 9. Support tube; 10. Clip rod; 11. Clip tube; 12. Wall-mounting block; 13. Inner rotating frame; 14. Vertical frame; 15. Counter-pressure spring; 16. Initial solidification groove; 17. Outer sleeve; 18. Outer retaining ring; 19. Positioning spring; 20. Rotating plate; 21. Positioning hole; 22. Adjusting frame; 23. Pressure adjusting roller; 24. Bottom roller; 25. Fixed roller; 26. Decolorizing assembly; 27. Connecting plate; 28. Limiting block; 29. Inner retaining ring; 30. Push-out spring. Detailed Implementation
[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0030] Please see Figures 1-5A decolorizing device for polyester fabric includes a main frame 1, a tension adjusting mechanism, a rotating locking mechanism, and a fixing auxiliary mechanism. The tension adjusting frame 22 includes a support base 2 and a rotating frame 3. The support base 2 is symmetrically installed at the top end of the main frame 1. The rotating frame 3 is rotatably connected to the support base 2. A hydraulic cylinder 4 is installed on the rotating frame 3. A push-pull frame 5 is installed at one end of the hydraulic cylinder 4. A tension roller 6 is installed on the push-pull frame 5. An adjusting plate 7 is installed at one end of the rotating frame 3. The adjusting plate 7 has adjusting holes 8, which are arranged in multiple sets in a ring. The rotating snap-fit mechanism includes a support tube 9 and a snap-fit rod 10. One end of the support tube 9 is rotatably mounted with a snap-fit tube 11. One end of the snap-fit rod 10 can be directionally inserted into the support tube 9. A wall-adhering block 12 is installed on the outer wall of the snap-fit rod 10. An inner rotating frame 13 is installed at the top end of the inner wall of the snap-fit tube 11. A vertical frame 14 is installed at the bottom end of the inner rotating frame 13. The vertical frame 14 can be rotatably embedded into the wall-adhering block 12. A counter-compression spring 15 is symmetrically installed on the wall-adhering block 12. A preliminary fixing groove 16 is provided on the vertical frame 14. The counter-compression spring 15 can be inserted into the preliminary fixing groove 16.
[0031] In this embodiment, the tension adjustment mechanism achieves precise adjustment of the polyester fabric tension through the combination of the support base 2 and the rotating frame 3. The rotating frame 3 can rotate on the support base 2 and is fixed at different angles through multiple sets of annular adjustment holes 8 on the adjustment disc 7. The hydraulic cylinder 4 is installed on the rotating frame 3 and drives the tension roller 6 to move through the push-pull frame 5, thereby adjusting the tension of the polyester fabric. The adjustment angle and the change of the position of the tension roller 6 can adapt to the tension requirements of polyester fabrics of different specifications, ensuring that the fabric maintains appropriate tension and flatness during the decolorization process. The rotating snap-fit mechanism lifts... It provides a stable and flexible connection method. The snap-fit rod 10 passes through the adjustment hole 8 and the support base 2 on the adjustment plate 7 and extends into the support tube 9. The wall-adhering block 12 on the outer wall of the snap-fit rod 10 cooperates with the inner rotating frame 13 and the vertical frame 14 in the snap-fit tube 11. Rotating the snap-fit tube 11 causes the vertical frame 14 to be embedded in the wall-adhering block 12. The pressure spring 15 on the wall-adhering block 12 extends into the initial fixing groove 16 on the vertical frame 14 to form a mechanical lock. The cooperation between the inner fixing ring 29 and the push-out spring 30 controls the snap-fit depth and provides disassembly assistance force, making the entire snap-fit process simple and firm.
[0032] The fixing auxiliary mechanism includes an outer sleeve 17 and an outer retaining ring 18. The outer sleeve 17 is installed at the bottom end of the side wall of the clamping tube 11, and the outer retaining ring 18 is fixedly installed on the outer wall of the support tube 9. A positioning spring 19 is installed horizontally on the outer retaining ring 18, and multiple sets of positioning spring 19 rods are provided. A rotating plate 20 is installed at the bottom end of the outer sleeve 17. A positioning hole 21 is opened on the rotating plate 20. The positioning spring 19 rods can extend into the positioning holes 21 on the rotating plate 20 step by step, so that the outer sleeve 17 stably drives the clamping tube 11 to rotate on the support tube 9.
[0033] In this embodiment, the fixing auxiliary mechanism enhances the stability of the snap-fit connection by working together with the outer sleeve 17 and the outer retaining ring 18. The outer sleeve 17 is installed on the side wall of the snap-fit tube 11, and the outer retaining ring 18 is fixed to the outer wall of the support tube 9. Multiple sets of positioning springs 19 are installed on the outer retaining ring 18. When the outer sleeve 17 is rotated, the positioning hole 21 on the bottom rotating plate 20 is aligned with the positioning spring 19. The positioning spring 19 extends into the positioning hole 21 step by step, so that the outer sleeve 17 can stably drive the snap-fit tube 11 to rotate at a specific angle, preventing accidental loosening or displacement during equipment operation.
[0034] Please see Figures 1-5 As a supplementary embodiment of a polyester fabric decolorizing device, which includes a tension adjustment mechanism, a rotary clamping mechanism, and a fixing auxiliary mechanism: An adjustment frame 22 is installed on one side of the top end of the main frame 1. A pressure adjustment roller 23 and a bottom roller 24 are installed on the adjustment frame 22. A fixing roller 25 is installed at the top end of the main frame 1. A decolorizing component 26 is installed on one side of the top end of the main frame 1. The polyester fabric passes between the pressure adjustment roller 23 and the bottom roller 24. The bottom end face of the fixing roller 25 contacts the top end face of the polyester fabric, and the bottom end face of the polyester fabric contacts the top end face of the tension roller 6. The support tube 9 is guided into the decolorizing component 26. A connecting plate 27 is installed at the bottom of the side wall of the support tube 9. The connecting plate 27 is fixedly installed on the support base 2. The snap-fit rod 10 can pass through different adjustment holes 8 and extend through the support base 2 to engage with the support tube 9. A limiting block 28 is installed at one end of the snap-fit rod 10. One end of the limiting block 28 is in contact with and pressed against one end of the adjustment plate 7. An inner retaining ring 29 is installed on the inner wall of the support tube 9. A push-out spring 30 is installed on the outer wall of the snap-fit rod 10. One end of the push-out spring 30 can contact the bottom end of the inner retaining ring 29.
[0035] More specifically, the tension adjustment mechanism is first securely installed on the main frame 1 via a rotating snap-fit mechanism and a fixing auxiliary mechanism, and the angle is adjusted according to the fabric characteristics. After passing through the fixed roller 25, the polyester fabric contacts the tension roller 6. The tension roller 6 adjusts the tension of the polyester fabric through the action of the hydraulic cylinder 4 and the push-pull frame 5. Subsequently, the fabric passes between the pressure adjusting roller 23 and the bottom roller 24 and enters the decolorizing component 26 for decolorization. Throughout the process, the tension adjustment mechanism continuously maintains the appropriate tension of the fabric, while the rotating snap-fit mechanism and the fixing auxiliary mechanism ensure stable and reliable connection of each component, jointly guaranteeing the uniformity of the decolorization effect and the processing efficiency.
[0036] In summary, during the use or operation of the overall equipment: when the tension adjustment mechanism is required, the tension adjustment mechanism achieves precise adjustment of the polyester fabric tension through the combination of the support base 2 and the rotating frame 3. The rotating frame 3 can rotate on the support base 2 and is fixed at different angles through multiple sets of annular adjustment holes 8 on the adjustment plate 7. The hydraulic cylinder 4 is installed on the rotating frame 3 and drives the tension roller 6 to move through the push-pull frame 5, thereby adjusting the tension of the polyester fabric. The adjustment angle and the change of the position of the tension roller 6 can adapt to the tension requirements of polyester fabrics of different specifications, ensuring that the fabric maintains appropriate tension and flatness during the decolorization process.
[0037] When the rotating snap-fit mechanism is required to operate, it provides a stable and flexible connection method. The snap-fit rod 10 passes through the adjustment hole 8 on the adjustment plate 7 and the support seat 2, and extends into the support tube 9. The wall-adhering block 12 on the outer wall of the snap-fit rod 10 cooperates with the inner rotating frame 13 and the vertical frame 14 in the snap-fit tube 11. Rotating the snap-fit tube 11 causes the vertical frame 14 to be embedded in the wall-adhering block 12. The pressure spring 15 on the wall-adhering block 12 extends into the initial fixing groove 16 on the vertical frame 14 to form a mechanical lock. The cooperation between the inner fixing ring 29 and the push-out spring 30 controls the snap-fit depth and provides disassembly assistance force, making the entire snap-fit process simple and firm.
[0038] When the auxiliary mechanism is required to operate, the auxiliary mechanism works in concert with the outer sleeve 17 and the outer retaining ring 18 to enhance the stability of the snap-fit connection. The outer sleeve 17 is installed on the side wall of the snap-fit tube 11, and the outer retaining ring 18 is fixed to the outer wall of the support tube 9. Multiple sets of positioning springs 19 are installed on the outer retaining ring 18. When the outer sleeve 17 is rotated, the positioning hole 21 on the bottom rotating plate 20 is aligned with the positioning spring 19. The positioning spring 19 extends into the positioning hole 21 step by step, so that the outer sleeve 17 can stably drive the snap-fit tube 11 to rotate at a specific angle, preventing accidental loosening or displacement during equipment operation.
[0039] First, the tension adjustment mechanism is securely installed on the main frame 1 via a rotating snap-fit mechanism and a fixing auxiliary mechanism. The angle is adjusted according to the fabric characteristics. After passing through the fixing roller 25, the polyester fabric contacts the tension roller 6. The tension roller 6 adjusts the tension of the polyester fabric through the action of the hydraulic cylinder 4 and the push-pull frame 5. Subsequently, the fabric passes between the pressure adjusting roller 23 and the bottom roller 24 and enters the decolorizing assembly 26 for decolorization. Throughout the process, the tension adjustment mechanism continuously maintains appropriate tension on the fabric, while the rotating snap-fit mechanism and the fixing auxiliary mechanism ensure stable and reliable connections between all components, jointly guaranteeing the uniformity of the decolorization effect and processing efficiency.
[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
[0041] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.
Claims
1. A decolorizing device for polyester fabric, comprising a main frame (1), a tension adjusting mechanism, a rotating snap-fit mechanism, and a fixing auxiliary mechanism, characterized in that: The tension adjusting frame (22) mechanism includes a support base (2) and a rotating frame (3). The support base (2) is symmetrically installed at the top end of the main frame (1). The rotating frame (3) is rotatably connected to the support base (2). A hydraulic cylinder (4) is installed on the rotating frame (3). A push-pull frame (5) is installed at one end of the hydraulic cylinder (4). A tension roller (6) is installed on the push-pull frame (5). An adjusting plate (7) is installed at one end of the rotating frame (3). An adjusting hole (8) is opened on the adjusting plate (7). Multiple sets of adjusting holes (8) are arranged in a ring. The rotating locking mechanism includes a support base (22). The support tube (9) and the snap-fit rod (10) are provided. One end of the support tube (9) is rotatably installed with a snap-fit tube (11). One end of the snap-fit rod (10) can be directionally inserted into the support tube (9). A wall-adhering block (12) is installed on the outer wall of the snap-fit rod (10). An inner rotating frame (13) is installed at the top end of the inner wall of the snap-fit tube (11). A vertical frame (14) is installed at the bottom end of the inner rotating frame (13). The vertical frame (14) can be rotatably embedded into the wall-adhering block (12). A counter-compression spring (15) is symmetrically installed on the wall-adhering block (12). A pre-fixing groove (16) is provided on the vertical frame (14).
2. The decolorizing device for polyester fabric according to claim 1, characterized in that: The fixing auxiliary mechanism includes an outer sleeve (17) and an outer fixing ring (18). The outer sleeve (17) is installed at the bottom end of the side wall of the clamping tube (11). The outer fixing ring (18) is fixedly installed on the outer wall of the support tube (9). A positioning spring (19) is installed horizontally on the outer fixing ring (18), and multiple sets of positioning spring (19) rods are provided. A rotating plate (20) is installed at the bottom end of the outer sleeve (17). A positioning hole (21) is opened on the rotating plate (20). The positioning spring (19) rod can extend into the positioning hole (21) on the rotating plate (20) step by step.
3. The decolorizing device for polyester fabric according to claim 1, characterized in that: An adjustment frame (22) is installed on one side of the top end of the main frame (1), and a pressure adjustment roller (23) and a bottom roller (24) are installed on the adjustment frame (22).
4. The decolorizing device for polyester fabric according to claim 3, characterized in that: A fixed roller (25) is installed at the top end of the main frame (1), and a decolorizing component (26) is installed on one side of the top end of the main frame (1), and the polyester fabric passes between the pressure adjusting roller (23) and the bottom roller (24).
5. The decolorizing device for polyester fabric according to claim 4, characterized in that: The bottom end face of the fixed roller (25) contacts the top end face of the polyester fabric, and the bottom end face of the polyester fabric contacts the top end face of the tension roller (6), leading into the interior of the decolorizing assembly (26).
6. The decolorizing device for polyester fabric according to claim 1, characterized in that: A connecting plate (27) is installed at the bottom of the side wall of the support tube (9). The connecting plate (27) is fixedly installed on the support base (2). The snap-fit rod (10) can pass through different adjustment holes (8) and extend through the support base (2) to engage with the support tube (9).
7. The decolorizing device for polyester fabric according to claim 1, characterized in that: One end of the snap-fit rod (10) is equipped with a limiting block (28), and one end of the limiting block (28) is pressed against one end of the adjusting plate (7).
8. The decolorizing device for polyester fabric according to claim 1, characterized in that: An inner retaining ring (29) is installed on the inner wall of the support tube (9), and an ejection spring (30) is installed on the outer wall of the snap rod (10), with one end of the ejection spring (30) contacting the bottom end of the inner retaining ring (29).