A yarn guide tension device

Abstract

This utility model relates to the field of spinning technology, and in particular to a yarn guiding and tensioning device. It includes a mounting plate with vertically upward-facing fixed frames at both ends along its length. A yarn guide wheel is mounted on each fixed frame. Two mounting blocks are spaced apart along the length of the mounting plate between the fixed frames. A movable frame is mounted on each mounting block, with a yarn guide wheel at its upper end. A mounting seat is mounted on a mounting plate on one side of the movable frame, and an electric push rod is rotatably connected to the mounting seat via a pin. The yarn guiding and tensioning device obtained by this utility model can achieve stable yarn guidance. By swinging the movable frame, the position of the yarn guide wheel on the movable frame can be adjusted, thereby changing the height and position of the yarn guide wheels on the movable and fixed frames, achieving yarn tension, improving stable tension, and providing a large tension adjustment range. It can also reduce yarn friction and improve yarn quality.

Description

Technical Field

[0001] This utility model relates to the field of spinning technology, and in particular to a yarn guiding and tensioning device. Background Technology

[0002] In existing technologies, yarns need to be kept taut during the yarn production and processing process. Existing tensioning devices often use the raising and lowering of guide rollers to create a positional difference, thereby generating tension, or they use clamping pressure to generate tension.

[0003] However, this type of tensioning has a small tension adjustment range, which affects the tension state and stability, and at the same time puts a certain pressure on the yarn, affecting the yarn quality. Utility Model Content

[0004] To address the aforementioned technical deficiencies, this invention provides a yarn guiding and tensioning device that can guide the yarn, enhance stable tension, and maintain yarn stability.

[0005] This utility model discloses a yarn guiding tensioning device, including a mounting plate. Vertically upward fixed frames are provided at both ends of the mounting plate along its length. Yarn guiding wheels are provided on the fixed frames and are rotatably connected to the fixed frames. Two mounting blocks are spaced apart along the length of the mounting plate between the fixed frames. Movable frames are provided on the mounting blocks. The lower end of the movable frame is rotatably connected to the mounting block via a pin. Yarn guiding wheels are provided at the upper end of the movable frame. A mounting seat is provided on the mounting plate on one side of the movable frame. An electric push rod is rotatably connected to the mounting seat via a pin. The telescopic end of the electric push rod is rotatably connected to the corresponding movable frame via a pin.

[0006] Two movable frames are designated as the first movable frame and the second movable frame, and two fixed frames are designated as the first fixed frame and the second fixed frame. The first fixed frame, the first movable frame, the second movable frame, and the second fixed frame are arranged sequentially along the length of the mounting plate. The length of the first movable frame is greater than the length of the second movable frame, the length of the first movable frame is greater than the length of the first fixed frame, and the length of the second movable frame is less than the length of the second fixed frame.

[0007] Both the first and second movable frames include two side plates. The lower end of the side plates is rotatably connected to the mounting block via a pin. A yarn guide wheel is provided between the upper ends of the two side plates, and a crossbar is provided at the lower middle end between the side plates. The telescopic end of the electric push rod is rotatably connected to the crossbar.

[0008] Two limiting sleeves are fixed at intervals in the middle of the crossbar. The limiting sleeves protrude from the circumferential surface of the crossbar. A bushing is fitted on the crossbar between the two limiting sleeves. The bushing is rotatably connected to the crossbar. The telescopic end of the electric push rod is fixedly connected to the bushing.

[0009] The structure of the guide wheel on the movable frame and the fixed frame includes: a wheel axle and a wheel body. The wheel axle is fixed to the end of the movable frame and the fixed frame. The wheel body is sleeved on the wheel axle and the wheel body is rotatably connected to the wheel axle. Several annular guide grooves with arc-shaped cross sections are provided at intervals on the circumferential surface of the wheel body.

[0010] The yarn tensioning device obtained by this invention can achieve stable yarn guidance, and adjust the position of the yarn guide wheel on the movable frame by swinging the movable frame, thereby changing the height and position of the yarn guide wheel on the movable frame and the fixed frame, so as to achieve yarn tensioning, improve stable tension force, and have a large tension force adjustment range. It can also reduce friction on the yarn and improve yarn quality. Attached Figure Description

[0011] Figure 1 This is a front view of the structure of this utility model;

[0012] Figure 2 This is a three-dimensional structural view of the present invention;

[0013] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0014] Figure 4 for Figure 2 A magnified view of a portion of point B in the middle. Detailed Implementation

[0015] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0016] Example 1:

[0017] like Figures 1-4 As shown, this utility model discloses a yarn guiding tensioning device, including a mounting plate 5. Vertically upward fixed frames are provided at both ends of the mounting plate 5 along its length. Yarn guiding wheels 9 are provided on the fixed frames and are rotatably connected to the fixed frames. Two mounting blocks 6 are provided at intervals along the length of the mounting plate 5 between the fixed frames. Movable frames are provided on the mounting blocks 6. The lower end of the movable frame is rotatably connected to the mounting block 6 by a pin. Yarn guiding wheels 9 are provided at the upper end of the movable frame. A mounting seat 7 is provided on the mounting plate 5 on one side of the movable frame. An electric push rod 8 is rotatably connected to the mounting seat 7 by a pin. The telescopic end of the electric push rod 8 is rotatably connected to the corresponding movable frame by a pin.

[0018] Two movable frames are designated as the first movable frame 2 and the second movable frame 3, and two fixed frames are designated as the first fixed frame 1 and the second fixed frame 4. The first fixed frame 1, the first movable frame 2, the second movable frame 3, and the second fixed frame 4 are arranged sequentially along the length of the mounting plate 5. The length of the first movable frame 2 is greater than the length of the second movable frame 3, the length of the first movable frame 2 is greater than the length of the first fixed frame 1, and the length of the second movable frame 3 is less than the length of the second fixed frame 4.

[0019] Mounting plate 5 is a long strip-shaped plate used to mount various components. Mounting blocks 6, mounting bases 7, etc., are fixed to mounting plate 5, and can be connected to mounting plate 5 using bolts or other fixing methods. The electric push rod 8 is a commercially available product, and its specific structure is not limited.

[0020] In practical use, the yarn 10 passes sequentially from below the guide roller 9 of the first fixed frame 1, above the guide roller 9 of the first movable frame 2, below the guide roller 9 of the second movable frame 3, and above the guide roller 9 of the second fixed frame 4. Since the length of the first movable frame 2 is greater than the length of the second movable frame 3 and also greater than the length of the first fixed frame 1, the guide roller 9 on the first movable frame 2 is naturally positioned above the guide rollers 9 of the first fixed frame 1 and the second movable frame 3. Similarly, the length of the second movable frame 3 is less than the length of the first movable frame 2 and also less than the length of the second fixed frame 4, so the guide roller 9 on the second movable frame 3 is positioned below the guide rollers 9 of the first movable frame 2 and the second fixed frame 4. This ensures that the yarn 10 is kept taut.

[0021] During the adjustment of the tension of yarn 10, the electric push rods 8 on the first movable frame 2 and the second movable frame 3 operate independently. That is, the electric push rod 8 can drive the first movable frame 2 to rise or fall, and the electric push rod 8 can drive the second movable frame 3 to rise or fall. Because the swing amplitude of the first movable frame 2 and the second movable frame 3 is relatively large, the height difference between the guide rollers 9 on the first movable frame 2 and the guide rollers 9 on the second movable frame 3 can be adjusted during the swing, as can the spacing between them, thereby changing the tension. Especially when the second movable frame 3 rotates to the left to a lower position, the first movable frame 2 rotates to the right to a lower position, and the guide roller 9 of the first movable frame 2 is located to the upper right of the guide roller 9 of the second movable frame 3, and the height difference is relatively small, the tension of the yarn 10 is very large, suitable for situations requiring a large tension. This tension state is something that cannot be achieved by two guide rollers 9 spaced apart in the prior art within a normal and reasonable height difference range.

[0022] During the adjustment of the first movable frame 2 and the second movable frame 3, the change in the height position of the guide wheel 9 can alter the contact range between the yarn 10 and the guide wheel 9, thereby changing the tension and tension state.

[0023] In the actual adjustment process, the adjustment positions of the first movable frame 2 and the second movable frame 3 are determined according to actual needs. Those skilled in the art can determine this by measuring the tension value of the yarn 10 with equipment or by judging it based on actual experience.

[0024] Both the first movable frame 2 and the second movable frame 3 include two side plates 11. The lower end of the side plate 11 is rotatably connected to the mounting block 6 via a pin. A guide wheel 9 is provided between the upper ends of the two side plates 11, and a crossbar 12 is provided at the lower middle end between the side plates 11. The telescopic end of the electric push rod 8 is rotatably connected to the crossbar 12. The first movable frame 2 and the second movable frame 3 are rotatably mounted on both ends of the mounting block 6 via two side plates 11 via pins, making the connection simple and convenient. At the same time, the use of the crossbar 12 for connection improves the overall integrity and strength between the side plates 11, and enhances the stability during the swinging process. The telescopic end of the electric push rod 8 on the mounting base 7 can be connected to the middle part of the crossbar 12, making the pushing process of the electric push rod 8 on the first movable frame 2 and the second movable frame 3 stable and reliable.

[0025] Two limiting sleeves 13 are fixed at intervals in the middle of the crossbar 12. The limiting sleeves 13 protrude from the circumferential surface of the crossbar 12. A bushing 14 is fitted on the crossbar 12 between the two limiting sleeves 13. The bushing 14 is rotatably connected to the crossbar 12. The telescopic end of the electric push rod 8 is fixedly connected to the bushing 14. By rotatably setting the bushing 14 in the middle of the crossbar 12 and fixing the limiting sleeves 13 at both ends for positioning, the telescopic end of the electric push rod 8 is fixed to the bushing 14, making the rotatable connection between the telescopic end of the electric push rod 8 and the crossbar 12 more stable and reliable.

[0026] The structure of the guide wheel 9 on the movable frame and the fixed frame includes: a wheel axle 15 and a wheel body 16. The wheel axle 15 is fixed to the end of the movable frame and the fixed frame. The wheel body 16 is sleeved on the wheel axle 15. The wheel body 16 and the wheel axle 15 are rotatably connected. Several annular guide grooves 17 with arc-shaped cross sections are provided at intervals on the circumferential surface of the wheel body 16.

[0027] The guide rollers 9 on the movable and fixed frames utilize axle 15 and roller body 16. Axle 15 can be fixed to the movable and fixed frames, while roller body 16 is rotatably connected to axle 15, resulting in smoother and more stable rotation during actual yarn guiding. Multiple annular guide grooves 17 are also provided on roller body 16, enabling the simultaneous guiding of multiple strands of yarn 10, further enhancing stability. In practical use, bearings can be installed between roller body 16 and axle 15 to reduce friction, allowing roller body 16 to rotate more smoothly and thus reducing friction between roller body 16 and yarn 10. Furthermore, roller body 16 can be made of ceramic material, with a smooth and wear-resistant surface, significantly reducing friction on yarn 10 and improving yarn quality.

[0028] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. 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 indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the interaction relationship between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0030] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simplification, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A yarn tensioning device, characterized in that: The device includes a mounting plate with vertically upward fixed frames at both ends along its length. A yarn guide wheel is mounted on each fixed frame and rotatably connected to the fixed frame. Two mounting blocks are spaced apart along the length of the mounting plate between the fixed frames. A movable frame is mounted on each mounting block, with its lower end rotatably connected to the mounting block via a pin. A yarn guide wheel is mounted on the upper end of the movable frame. A mounting base is mounted on one side of the movable frame, with an electric push rod rotatably connected to the mounting base via a pin. The telescopic end of the electric push rod is rotatably connected to the corresponding movable frame via a pin. Two movable frames are designated as the first movable frame and the second movable frame, and two fixed frames are designated as the first fixed frame and the second fixed frame. The first fixed frame, the first movable frame, the second movable frame, and the second fixed frame are arranged sequentially along the length of the mounting plate. The length of the first movable frame is greater than the length of the second movable frame, the length of the first movable frame is greater than the length of the first fixed frame, and the length of the second movable frame is less than the length of the second fixed frame.

2. The yarn tensioning device according to claim 1, characterized in that: Both the first and second movable frames include two side plates. The lower end of the side plates is rotatably connected to the mounting block via a pin. A yarn guide wheel is provided between the upper ends of the two side plates, and a crossbar is provided at the lower middle end between the side plates. The telescopic end of the electric push rod is rotatably connected to the crossbar.

3. A yarn guiding tensioning device according to claim 2, characterized in that: in Two limiting sleeves are fixed at intervals in the middle of the crossbar. The limiting sleeves protrude from the circumferential surface of the crossbar. A bushing is fitted on the crossbar between the two limiting sleeves. The bushing is rotatably connected to the crossbar. The telescopic end of the electric push rod is fixedly connected to the bushing.

4. The yarn tensioning device according to claim 1, characterized in that: The structure of the guide wheel on the movable frame and the fixed frame includes: a wheel axle and a wheel body. The wheel axle is fixed to the end of the movable frame and the fixed frame. The wheel body is sleeved on the wheel axle and the wheel body is rotatably connected to the wheel axle. Several annular guide grooves with arc-shaped cross sections are provided at intervals on the circumferential surface of the wheel body.

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