A drawing frame with adjustable tension

Abstract

The utility model discloses a kind of drawing frame of adjustable tension, specifically related to drawing frame technical field, including adjusting member for adjusting fibre strip tension and being installed on drawing frame rack;The adjusting member includes the mounting plate being arranged in drawing frame rack, the fixed support is equipped in the bottom of mounting plate, and electric push rod for adjusting the height of fixed support is installed in the top of mounting plate, the main roller is rotatably connected by rotating shaft and is installed in the inside of fixed support.The utility model drives the main roller on fixed support to move up by electric push rod, thereby the tension of fibre strip is adjusted in vertical direction by height adjustment, then by servo motor driving main bevel gear rotates, main bevel gear drives linkage shaft by meshing from bevel gear to drive sub roller to rotate with main roller as center, thereby realize the oblique direction tension adjustment of fibre strip, and realize fine tension adjustment by changing fibre strip winding angle, improve the tension adjustment range of the utility model.

Description

Technical Field

[0001] This utility model relates to the field of drawing frame technology, and more specifically to a drawing frame with adjustable tension. Background Technology

[0002] In the textile industry, the drawing frame is one of the core pieces of equipment in a short-process spinning system. Its function is to combine and draft multiple fiber slivers to improve fiber uniformity and structural strength. When processing regenerated or differentiated fibers, the tension needs to be dynamically adjusted to suit the characteristics of the raw materials. This requires the use of a tension regulating device to apply a constant tension to the fiber sliver.

[0003] As shown in the prior art published in CN222499532U, although this prior art can tension the fiber sliver after drawing and twisting by setting a tensioning wheel, and can precisely adjust the height of the tensioning wheel, thereby precisely adjusting the tension of the fiber sliver after drawing and twisting, resulting in better performance and higher reliability, the tensioning wheel in this prior art does not have the function of further adjusting the tension after the height is adjusted. If the height is adjusted to the limit and the tension of the fiber sliver still cannot be adjusted, and there is no possibility of further adjustment, this technical solution has certain limitations. Utility Model Content

[0004] To overcome the aforementioned deficiencies of the prior art, this utility model provides a draw frame with adjustable tension. An electric push rod drives the main roller on a fixed support to move upwards, thereby adjusting the vertical tension of the fiber sliver through height adjustment. A servo motor then drives the main bevel gear to rotate, which, through a meshing driven bevel gear, drives the linkage shaft to rotate the auxiliary roller around the main roller. This achieves tension adjustment in the inclined direction of the fiber sliver. Furthermore, by changing the winding angle of the fiber sliver, fine tension adjustment is achieved, improving the tension adjustment range of this utility model and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a draw frame with adjustable tension, including an adjusting component installed on the draw frame for adjusting the tension of the fiber sliver;

[0006] The adjusting component includes a mounting plate disposed within the frame of the drawing frame. The bottom of the mounting plate is provided with a fixed bracket, and the top of the mounting plate is provided with an electric push rod for adjusting the height of the fixed bracket. The fixed bracket is equipped with a main roller that is movably connected via a rotating shaft, and a secondary roller is provided on the front side of the top of the fixed bracket. Both ends of the secondary roller are equipped with connecting plates that are movably connected via rotating shafts.

[0007] Both ends of the fixed bracket are equipped with linkage shafts that are movably connected by bearings. The rear end of the connecting plate is sleeved on the outside of the linkage shafts, and one of the linkage shafts is equipped with a drive component for adjusting the angle of the auxiliary roller.

[0008] In a preferred embodiment, the driving component includes a driven bevel gear sleeved outside one of the linkage shafts, a master bevel gear meshing with the top of the driven bevel gear, and a fixing plate mounted on the side of the fixing bracket corresponding to the master bevel gear, with a servo motor for driving the master bevel gear mounted on the top of the fixing plate.

[0009] In a preferred embodiment, a scale plate is mounted on the top of the fixed bracket, the top of the scale plate penetrating through the mounting plate and extending to the top of the mounting plate.

[0010] In a preferred embodiment, positioning posts are installed at the top of both ends of the fixed bracket. The top of the positioning post penetrates through the mounting plate and extends to the top of the mounting plate. A limiting plate is installed at the top of the positioning post and is located on the top of the mounting plate.

[0011] In a preferred embodiment, the diameter of the limiting plate is larger than the diameter of the positioning post.

[0012] In a preferred embodiment, mounting plates are installed on the top of both ends of the mounting plate, and two spaced fastening bolts are provided on the side of the two mounting plates that are close to each other. The fastening bolts pass through the mounting plates and extend into the interior of the drawing frame, and the fastening bolts are threadedly connected to the drawing frame.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] The main roller on the fixed support is moved upward by an electric push rod, thereby adjusting the tension of the fiber strip in the vertical direction by adjusting the height. Then, the main bevel gear is driven to rotate by a servo motor. The main bevel gear drives the linkage shaft through the meshing bevel gear to drive the auxiliary roller to rotate around the main roller. This achieves tension adjustment in the inclined direction of the fiber strip. By changing the winding angle of the fiber strip, fine tension adjustment is achieved, thus improving the tension adjustment range of this invention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front view of the auxiliary roller of this utility model;

[0017] Figure 3 This is a rear view of the main roller of this utility model;

[0018] Figure 4 For the present utility model Figure 3Enlarged view of section A in the middle;

[0019] Figure 5 This is a side sectional view of the mounting plate of this utility model.

[0020] The attached diagram is labeled as follows: 1. Drawing frame; 2. Mounting plate; 3. Fixed bracket; 4. Electric push rod; 5. Main roller; 6. Auxiliary roller; 7. Connecting plate; 8. Linkage shaft; 9. Driven bevel gear; 10. Main bevel gear; 11. Fixed plate; 12. Servo motor; 13. Scale plate; 14. Positioning column; 15. Limiting plate; 16. Assembly plate; 17. Fastening bolt. Detailed Implementation

[0021] 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.

[0022] Refer to the instruction manual appendix Figure 1-5 This utility model provides a draw frame with adjustable tension, including an adjusting component installed on the frame 1 of the draw frame for adjusting the tension of the fiber sliver;

[0023] The adjusting component includes a mounting plate 2 disposed within the frame 1 of the drawing frame. The bottom of the mounting plate 2 is provided with a fixed bracket 3, and the top of the mounting plate 2 is provided with an electric push rod 4 for adjusting the height of the fixed bracket 3. The fixed bracket 3 is internally installed with a main roller 5 movably connected via a rotating shaft, and the front side of the top of the fixed bracket 3 is provided with a secondary roller 6. Both ends of the secondary roller 6 are provided with connecting plates 7 movably connected via rotating shafts. Both ends of the fixed bracket 3 are provided with a linkage shaft 8 movably connected via bearings. The rear end of the connecting plate 7 is sleeved outside the linkage shaft 8, and one of the linkage shafts 8 is provided with a drive component for adjusting the angle of the secondary roller 6.

[0024] When using the aforementioned adjusting component to adjust the tension of the sliver after plying inside the drawing frame 1, the operator must first install the adjusting component entirely inside the drawing frame 1. This results in mounting plates 16 being installed at the top of both ends of the mounting plate 2. Two spaced fastening bolts 17 are provided on the side of each mounting plate 16 that is close to each other. These fastening bolts 17 penetrate the mounting plates 16 and extend into the drawing frame 1, where they are threadedly connected. The fastening bolts 17 secure the mounting plates 16 on the mounting plate 2 to the inside of the drawing frame 1, thereby improving the stability of the mounting plate 2 and ensuring the strength of the mounting plate 2 in supporting the main roller 5 and the auxiliary roller 6.

[0025] After the adjusting parts are assembled into the frame 1 of the drawing frame, the operator places the twisted fiber strip outside the main roller 5, and then drives the fixed bracket 3 to move upward through the electric push rod 4. The fixed bracket 3 then drives the main roller 5 to move upward. Thus, the tension of the fiber strip in the vertical direction can be adjusted by adjusting the height.

[0026] When the height adjustment is insufficient to meet the tension adjustment of the fiber strip, the auxiliary roller 6 needs to be driven by a drive component. The drive component includes a driven bevel gear 9, which is sleeved on the outside of one of the linkage shafts 8. The top of the driven bevel gear 9 meshes with a main bevel gear 10, and a fixing plate 11 is installed on the side of the fixing bracket 3 corresponding to the main bevel gear 10. A servo motor 12 for driving the main bevel gear 10 is installed on the top of the fixing plate 11. Thus, the servo motor 12 is started to drive the main bevel gear 10 to rotate. The main bevel gear 10 drives one of the linkage shafts 8 to rotate through the meshing driven bevel gear 9. The linkage shaft 8 then drives the connecting plate 7 to drive the auxiliary roller 6 to rotate around the main roller 5. When the auxiliary roller 6 rotates downward, it presses down on the fiber strip, thereby achieving tension adjustment in the tilt direction of the fiber strip. The fiber strip forms an S-shaped path under the combined action of the main roller 5 moving upward and the auxiliary roller 6 pressing downward. By changing the winding angle of the fiber strip, fine tension adjustment is achieved, thereby improving the tension adjustment range of this utility model.

[0027] To ensure the accuracy of adjusting the fiber tension, a scale plate 13 is installed on the top of the fixed bracket 3. The top of the scale plate 13 passes through the mounting plate 2 and extends to the top of the mounting plate 2. Through the connection between the scale plate 13 and the fixed bracket 3, the scale plate 13 can move together with the fixed bracket 3, which makes it easier for the staff to observe the scale plate 13 to understand the height adjustment of the main roller 5 and ensure the accuracy of fiber tension adjustment.

[0028] Meanwhile, to prevent imbalance at both ends of the fixed bracket 3, positioning posts 14 are installed at the top of both ends of the fixed bracket 3. The top of the positioning post 14 penetrates the mounting plate 2 and extends to the top of the mounting plate 2. A limiting plate 15 is installed at the top of the positioning post 14. The limiting plate 15 is located at the top of the mounting plate 2. By installing the two positioning posts 14 at the top of both ends of the fixed bracket 3, the positioning posts 14 can limit the positions of both ends of the fixed bracket 3, thereby ensuring the stability of the fixed bracket 3 during movement and preventing the fixed bracket 3 from tilting or shifting during movement. Since the diameter of the limiting plate 15 is larger than the diameter of the positioning post 14, the limiting plate 15 can limit the positioning post 14, preventing the positioning post 14 from separating from the mounting plate 2 and ensuring the stability of the positioning post 14's displacement.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drawing frame with adjustable tension, characterized in that: Includes an adjusting element installed on the frame (1) of the drawing frame for adjusting the tension of the fiber sliver; The adjusting component includes a mounting plate (2) installed in the frame (1) of the drawing frame. The bottom of the mounting plate (2) is provided with a fixed bracket (3), and the top of the mounting plate (2) is provided with an electric push rod (4) for adjusting the height of the fixed bracket (3). The fixed bracket (3) is provided with a main roller (5) movably connected by a rotating shaft inside. The front side of the top of the fixed bracket (3) is provided with a secondary roller (6). Both ends of the secondary roller (6) are provided with connecting plates (7) movably connected by rotating shafts. Both ends of the fixed bracket (3) are equipped with a linkage shaft (8) that is movably connected by bearings. The rear end of the connecting plate (7) is sleeved on the outside of the linkage shaft (8). One of the linkage shafts (8) is provided with a drive component for adjusting the angle of the auxiliary roller (6).

2. The tension-adjustable drawing frame according to claim 1, characterized in that: The driving component includes a driven bevel gear (9), which is sleeved on the outside of one of the linkage shafts (8). The top of the driven bevel gear (9) meshes with a main bevel gear (10), and a fixing plate (11) is installed on the side of the fixing bracket (3) corresponding to the main bevel gear (10). A servo motor (12) for driving the main bevel gear (10) is installed on the top of the fixing plate (11).

3. The tension-adjustable drawing frame according to claim 1, characterized in that: The top of the fixed bracket (3) is equipped with a scale plate (13), the top of the scale plate (13) penetrates through the mounting plate (2) and extends to the top of the mounting plate (2).

4. The tension-adjustable drawing frame according to claim 1, characterized in that: The fixed bracket (3) has positioning posts (14) installed at both ends of the top. The top of the positioning post (14) penetrates the mounting plate (2) and extends to the top of the mounting plate (2). A limiting plate (15) is installed at the top of the positioning post (14). The limiting plate (15) is located at the top of the mounting plate (2).

5. A drawing frame with adjustable tension according to claim 4, characterized in that: The diameter of the limiting plate (15) is larger than the diameter of the positioning post (14).

6. A drawing frame with adjustable tension according to claim 1, characterized in that: The mounting plate (2) has an assembly plate (16) installed on the top of both ends. Two fastening bolts (17) are provided on the side of the two assembly plates (16) that are close to each other. The fastening bolts (17) penetrate the assembly plate (16) and extend into the inside of the drawing frame (1). The fastening bolts (17) are threadedly connected to the drawing frame (1).

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