Drawing frame with uniform drafting structure
By combining multi-roller graded stretching, visual inspection, and hot air moisture protection, the problem of uneven yarn merging is solved, achieving efficient and stable yarn sizing effect and improving spinning quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-31
AI Technical Summary
Existing wire merging devices suffer from uneven wire thickness after merging, which affects subsequent processing results.
It adopts a combination design of multi-roller graded stretching, visual inspection and hot air moisture protection. The friction force is controlled by the protrusions on the roller surface and the independent motor. With the differential speed adjustment of the visual inspection module and the rotating motor, self-adjusting yarn drawing is achieved.
It achieves efficient and stable yarn merging, ensures fiber uniformity and stability, reduces the impact of moisture regain, and improves spinning quality.
Smart Images

Figure CN224062972U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the textile field, and in particular to a drawing frame with a uniform drafting structure. Background Technology
[0002] The drawing frame is a key piece of equipment in textile processing, primarily used to improve the uniformity and strength of fiber slivers. Its function is to combine multiple coarse fiber slivers (such as cotton and synthetic fibers) into a more uniform fine sliver through processes such as doubling, drafting, and mixing, reducing unevenness in thickness and impurities, and improving the quality of subsequent spinning. The core structure includes roller drafting devices, guide frames, and pressure rollers, optimizing fiber arrangement by adjusting the draft ratio and the number of doubling operations. Widely used in cotton spinning, wool spinning, and other fields, it is an important piece of equipment in the pre-spinning process.
[0003] A search revealed patent publication number CN218262901U, which discloses a drawing mechanism for a drawing frame, including a drawing assembly and a cleaning assembly. The drawing assembly includes a base, with a drawing frame mounted on top of the base, and a drawing mechanism mounted on top of the drawing frame. The cleaning assembly includes a support shell. In this drawing mechanism, cotton slivers are placed in grooves on one side of plates one and two by opening the upper shell. After addition, the shell is closed and bolted together with a connecting plate. The machine is then started. As the cotton slivers pass through the grooves, lint on the surface is removed, preventing lint from directly entering the drawing mechanism and causing blockages that affect the work progress. The spacing between the two grooves can be adjusted by rotating the screw to raise and lower plate one, improving the lint removal effect. Rollers on both sides prevent the cotton slivers from directly contacting the two shells and causing damage.
[0004] While existing technologies can achieve a certain degree of yarn merging, they suffer from the drawback of producing yarns of uneven thickness, which affects subsequent processing. To address this, we propose a drawing frame with a uniform drawing structure, which solves the aforementioned problem. Utility Model Content
[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a drawing frame with a uniform drafting structure.
[0006] The technical solution of this utility model: A drawing frame with a uniform drawing structure includes a base plate, a rotating frame, rollers, and a vision inspection module. The rotating frame is rotatably mounted on one side of the upper end of the base plate. A mounting plate is provided on one side of the rotating frame. A hot air fan is provided on one side of the mounting plate. A first mounting column is provided on one side of the hot air fan. A second mounting column is provided on one side of the first mounting column. A third mounting column is provided on one side of the second mounting column. A fourth mounting column is provided on one side of the third mounting column. Rollers are provided at the upper ends of the first, second, third, and fourth mounting columns. A hydraulic cylinder is fixed at the upper end of the base plate. A vision inspection module is provided at the upper end of the hydraulic cylinder.
[0007] In use, multiple threads are first inserted into the through holes, then pre-wound to a certain length and passed through the ring fixed to the upper end of the mounting plate. The merged thread bundle is then pulled by the four rollers and extends from the outermost roller. The rotational torque of rollers one through four increases sequentially, achieving a stretching effect on the threads and facilitating stable merging. Then, the first rotating motor is started to drive the rotating frame to rotate, merging the threads. A detector is installed between rollers two and three, which uses a visual inspection module to detect the width of the thread bundle. If loosening or widening is observed, the rotation speed of rollers three and four will be increased appropriately. After adjustment, the original state will be restored. During merging, the threads are blown by a hot air blower, which can prevent moisture regain to a certain extent and ensure stable fiber arrangement. This device has a highly efficient self-adjusting thread sizing effect and is highly practical.
[0008] Preferably, the surface of the roller is provided with protrusions arranged in a ring array. The protrusions are used to increase the friction of the yarn after drawing. The first, second, third and fourth mounting posts are equipped with a second rotating motor. The output shaft of the second rotating motor is fixedly connected to the rotation center of the lower end of the roller. The independent rotating motor precisely controls the rotation speed of each roller to adapt to the stretching requirements of different fibers and improve adaptability.
[0009] Preferably, a synchronizer is fixed to the upper end of the base plate. The synchronizer is adapted to the hydraulic cylinder and ensures that the hydraulic cylinder drives the visual inspection module to move in a coordinated manner.
[0010] Preferably, a bracket is fixed to one side of the upper end of the base plate, and gears are rotatably installed between the brackets. A rotating motor is fixed to the outer wall of one side of the bracket, and the output shaft of the rotating motor is fixedly connected to the rotation center of one side of the gear.
[0011] Preferably, a mounting base is fixed to the upper end of the base plate, and a circular retainer is fixed to the upper end of the mounting base. The rotating frame is rotatably mounted inside the retainer, and rollers arranged in a circular array are provided between the retainer and the rotating frame.
[0012] Preferably, the outer wall of the rotating frame is provided with a rack, which meshes with a gear, and the interior of the rotating frame is provided with through holes arranged in a circular array. The meshing of the rack ensures that the rotating frame rotates accurately and avoids deviation.
[0013] Preferably, a controller is fixed to one side of the upper end of the base plate, and a ring is fixed to one side of the mounting plate. The ring is used to limit the merging of multiple threads, and the controller centrally manages parameters such as the drum speed and the hot air blower to achieve intelligent adjustment.
[0014] Compared with existing technologies, the advantages of this utility model are:
[0015] I. This utility model achieves efficient, stable, and self-adjusting yarn drawing through a combination design of multi-roller graded stretching, visual inspection, and hot air moisture protection. The protrusions on the roller surface and the independent motor enhance friction and controllability, while the synchronizer and gear transmission ensure coordinated movement.
[0016] Second, based on the first beneficial effect, the cage and rollers reduce friction loss, while the controller and ring further optimize the ease of operation. Combined with the vision inspection module and the differential speed adjustment of the rotating motor, the uniformity of the sliver can be improved. This device also takes into account moisture prevention, loosening prevention and automatic adjustment, and has significant practicality and market competitiveness.
[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0019] Figure 2 This is a front view schematic diagram of the present invention;
[0020] Figure 3 This is a side view of the present invention;
[0021] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of structure A in the middle.
[0022] Figure label:
[0023] 1. Base plate; 2. Hydraulic cylinder; 3. Mounting column two; 4. Bracket; 5. Gear; 6. Rotary motor one; 7. Cage; 8. Rack; 9. Rotating frame; 10. Mounting column three; 11. Mounting column four; 12. Synchronizer; 13. Vision inspection module; 14. Controller; 15. Mounting base; 16. Roller; 17. Through hole; 18. Roller; 19. Protrusion; 20. Rotary motor two; 21. Mounting column one; 22. Mounting plate; 23. Hot air blower; 24. Ring. Detailed Implementation
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0028] Example 1
[0029] Please see Figures 1-4 As shown, this embodiment is a drawing frame with a uniform drawing structure, including a base plate 1, a rotating frame 9, a roller 18 and a vision inspection module 13. The rotating frame 9 is rotatably mounted on one side of the upper end of the base plate 1. A mounting plate 22 is provided on one side of the rotating frame 9. A hot air blower 23 is provided on one side of the mounting plate 22. A mounting column 1 21 is provided on one side of the hot air blower 23. A mounting column 2 3 is provided on one side of the mounting column 1 21. A mounting column 3 10 is provided on one side of the mounting column 2 3. A mounting column 4 11 is provided on one side of the mounting column 3 10. The roller 18 is provided on the upper end of the mounting column 1 21, the mounting column 2 3, the mounting column 3 10 and the mounting column 4 11. A hydraulic cylinder 2 is fixed on the upper end of the base plate 1. A vision inspection module 13 is provided on the upper end of the hydraulic cylinder 2.
[0030] In use, multiple threads are first inserted into the through hole 17, then pre-wound to a certain length and passed through the ring 24 fixed to the upper end of the mounting plate 22. The merged thread bundle is then pulled by the four rollers 18 and extends from the outermost roller 18. The rotational torque of rollers 1 through 4 increases sequentially to stretch the threads and facilitate stable merging. Then, the rotating motor 6 is started to drive the rotating frame 9 to rotate, thus merging the threads. A detector is installed between rollers 2 and 3. The detector can use the vision detection module 13 to detect the width of the thread bundle. If it becomes loose or wide, the rotation speed of rollers 3 and 4 will be increased appropriately. After adjustment, the original state will be restored. During merging, the threads are blown by the hot air blower 23. The hot air can prevent moisture from returning to a certain extent and ensure the stable arrangement of the fibers. This device has a highly efficient self-adjusting thread merging effect and is highly practical.
[0031] Example 2
[0032] Please see Figures 1-4 As shown, this embodiment, based on embodiment 1, further includes: the surface of the roller 18 is provided with protrusions 19 arranged in a ring array. The protrusions 19 are used to increase the friction of the yarn after drawing. The mounting column 1 21, mounting column 2 3, mounting column 3 10 and mounting column 4 11 are equipped with a rotating motor 20. The output shaft of the rotating motor 20 is fixedly connected to the rotation center of the lower end of the roller 18. The independent rotating motor 20 precisely controls the rotation speed of each roller 18, adapts to the stretching requirements of different fibers, improves adaptability, and can utilize the differential speed effect between the rotating motors 20 to stretch the fiber yarn and optimize the merging effect.
[0033] A synchronizer 12 is fixed on the upper end of the base plate 1. The synchronizer 12 is adapted to the hydraulic cylinder 2 and ensures that the hydraulic cylinder 2 drives the visual inspection module 13 to move in a coordinated manner.
[0034] A bracket 4 is fixed on one side of the upper end of the base plate 1. A gear 5 is rotatably installed between the brackets 4. A rotating motor 6 is fixed on the outer wall of one side of the bracket 4. The output shaft of the rotating motor 6 is fixedly connected to the rotation center of one side of the gear 5. The gear 5 provides stable power to ensure that the rotating frame 9 rotates at a uniform speed and avoids uneven force when the threads are combined.
[0035] A mounting base 15 is fixed to the upper end of the base plate 1. A circular retainer 7 is fixed to the upper end of the mounting base 15. A rotating frame 9 is rotatably mounted inside the retainer 7. Rollers 16 arranged in a circular array are provided between the retainer 7 and the rotating frame 9. The structure of the retainer 7 and the rollers 16 reduces the friction of the rotating frame 9, making it rotate more smoothly and extending the service life of the equipment.
[0036] The outer wall of the rotating frame 9 is provided with a rack 8, which meshes with the gear 5. The interior of the rotating frame 9 is provided with through holes 17 arranged in a ring array. The meshing of the rack 8 ensures that the rotating frame 9 rotates accurately and avoids deviation. The through hole 17 is designed to facilitate the simultaneous insertion of multiple threads and improve the drawing efficiency.
[0037] A controller 14 is fixed to one side of the upper end of the base plate 1, and a ring 24 is fixed to one side of the mounting plate 22. The ring 24 is used to limit the merging of multiple threads. The controller 14 centrally manages parameters such as the rotation speed of the roller 18 and the hot air blower 23 to achieve intelligent adjustment. The ring 24 guides the merging path of the threads, prevents tangling, and improves the drawing quality. Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A drawing frame with uniform drafting structure, comprising a base plate (1), a rotating frame (9), a roller (18) and a visual detection module (13), characterized in that: The bottom plate (1) upper end one side is rotatably installed with a rotating frame (9), one side of the rotating frame (9) is provided with a mounting plate (22), one side of the mounting plate (22) is provided with a hot air machine (23), one side of the hot air machine (23) is provided with a mounting column one (21), one side of the mounting column one (21) is provided with a mounting column two (3), one side of the mounting column two (3) is provided with a mounting column three (10), one side of the mounting column three (10) is provided with a mounting column four (11), the upper end of the mounting column one (21), the mounting column two (3), the mounting column three (10) and the mounting column four (11) is provided with a roller (18), the upper end of the bottom plate (1) is fixed with a hydraulic cylinder (2), the upper end of the hydraulic cylinder (2) is provided with a visual detection module (13).
2. A drawing frame with a uniform drafting arrangement according to claim 1, characterized in that: The surface of the roller (18) is provided with a convex (19) in annular array distribution, the convex (19) is used for increasing the friction of the silk after drawing, the inside of the mounting column one (21), the mounting column two (3), the mounting column three (10) and the mounting column four (11) is provided with a rotating motor two (20), the output shaft of the rotating motor two (20) is fixedly connected with the lower end rotating center of the roller (18).
3. A drawing frame with a uniform drafting arrangement according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixed with a synchronizer (12), the synchronizer (12) is used in conjunction with the hydraulic cylinder (2).
4. A drawing frame with a uniform drafting arrangement according to claim 3, characterized in that: The upper end of the bottom plate (1) is fixed with a support (4), the gear (5) is rotatably installed between the supports (4), the rotating motor one (6) is fixedly connected with the outer wall of one side of the support (4), the output shaft of the rotating motor one (6) is fixedly connected with one side rotating center of the gear (5).
5. A drawing frame with a uniform drafting arrangement according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixed with a mounting seat (15), the mounting seat (15) is fixedly connected with a circularly designed retainer (7), the rotating frame (9) is rotatably installed in the retainer (7), the retainer (7) and the rotating frame (9) are provided with a roller (16) in annular array distribution.
6. A drawing frame with a uniform drafting arrangement according to claim 1, characterized in that: The outer wall of the rotating frame (9) is provided with a rack (8), the rack (8) is engaged with the gear (5), the rotating frame (9) is provided with a through hole (17) in annular array distribution.
7. A drawing frame with a uniform drafting arrangement according to claim 1, characterized in that: The upper end of the bottom plate (1) is fixed with a controller (14), one side of the mounting plate (22) is fixedly connected with a circular ring (24), the circular ring (24) is used for limiting the merging of multiple silk.
Citation Information
Patent Citations
Drawing mechanism of drawing frame
CN218262901U