A tension control device for cotton yarn twisting

Abstract

This utility model belongs to the field of textile equipment and proposes a tension control device for cotton yarn twisting. It includes a machine body, a spindle frame, a ring, a vertical roller, a tensioning device, a guide, a twisting roller, and a yarn roller. A winding motor and a twisting motor are respectively installed at the shaft ends of the yarn roller and the twisting roller. The tensioning device includes a mounting base with two centrally symmetrically distributed tensioning arms. A tensioning wheel is located at the end of each tensioning arm facing the center of the mounting base, and a tensioning shaft is located at the end of each tensioning arm near the edge of the mounting base. A driven gear is located at the shaft end of the tensioning shaft inside the mounting base. A driving gear ring is located on the transmission side of the driven gear, and a transmission device is located at the center of the driving gear ring. A tension adjusting motor is located at the power input end of the transmission device, and the tension adjusting motor is located inside the machine body. This utility model has a reasonable design, acts on the cotton yarn through multiple points / lines, has good adjustment performance, and is highly practical and suitable for large-scale promotion.

Description

Technical Field

[0001] This utility model belongs to the field of textile equipment, and in particular relates to a tension control device for twisting cotton yarn. Background Technology

[0002] Twisting of cotton yarn occurs at multiple stages of spinning, including both roving and spinning processes. Untwisted fiber slivers are prone to loosening and breakage. Twisting increases the twist of the output product, giving it sufficient strength and elasticity. Twisting creates friction between the fibers, allowing the yarn to withstand stretching and abrasion. The twisting operation of the twisting equipment primarily relies on the high-speed rotation of the spindle or the relative movement of the twisting mechanism, causing the two ends of the cotton yarn to rotate relative to each other. The cotton yarn then aligns around the yarn axis, forming a spiral twist.

[0003] The main structures of existing twisting equipment include a spindle frame, ring, guide, tensioner, twisting roller, and yarn roller. The twisting roller is equipped with a twisting groove. The twisting roller and the yarn roller rotate continuously relative to each other, ultimately winding the twisted yarn into a yarn roll / spindle on the yarn roller. Among these components, the tensioner plays a crucial role in adjusting the tension of the yarn along the lead-out path. However, most tensioners use single-point or single-line action to apply pressure to the yarn, and their tension adjustment performance needs further improvement. Furthermore, most twisting equipment lacks a relative adjustment function between the guide and the tensioner, which also affects the real-time adjustment performance of the tensioner to some extent. Utility Model Content

[0004] This invention addresses the technical problems existing in the tension adjustment of the aforementioned twisting equipment by proposing a tension control device for cotton yarn twisting that is reasonably designed, has good adjustment performance, and is highly practical.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a tension control device for cotton yarn twisting, comprising a machine body, a spindle frame disposed on one side of the machine body, a steel ring and a vertical roller connected to the machine body disposed above the spindle frame, the upper surface of the machine body comprising a horizontal section, a first inclined section and a second inclined section distributed sequentially from top to bottom, a tensioning device and a guide disposed on the second inclined section, a twisting roller disposed on the horizontal section, a yarn roller disposed above the twisting roller, and a winding motor and a twisting motor respectively disposed at the shaft end of the yarn roller and the shaft end of the twisting roller. The machine body is equipped with a support frame for mounting yarn rollers. The tensioning device includes a mounting base parallel to the second inclined section. The mounting base is provided with two centrally symmetrically distributed tensioning arms. Each tensioning arm has a tensioning wheel at one end facing the center of the mounting base, and a tensioning shaft at one end near the edge of the mounting base. The end of the tensioning shaft is provided with a driven gear located inside the mounting base. The drive side of the driven gear is provided with a driving gear ring. A transmission device is provided at the center of the driving gear ring. A tension adjusting motor is provided at the power input end of the transmission device. The tension adjusting motor is located inside the machine body.

[0006] Preferably, the tensioning arm has an arc-shaped structure and the centers of the two tensioning arms are in opposite directions.

[0007] Preferably, the mounting base includes a square plate with a mounting ring on one side. The mounting ring mates with a mounting opening on the machine body. The square plate has connecting holes for mounting screws near its four corners. The square plate has an annular groove cover on the side facing away from the mounting ring. The annular groove cover has mounting holes for mounting a tensioning shaft. The annular groove cover has an arc-shaped limiting plate on the side away from the mounting holes, and the central angle of the limiting plate is less than 90°.

[0008] Preferably, the transmission device has a T-shaped structure and includes a baffle portion that is nested with the inner top wall of the annular groove cover. One end of the baffle portion is provided with a transmission plate that is tightly fitted with the drive gear ring, and one end of the transmission plate is provided with a bearing ring that fits with the mounting ring. A transmission shaft is provided on the inner side of the bearing ring, and the transmission shaft is connected to the tension adjustment motor.

[0009] Preferably, the guide includes a guide seat that cooperates with the second inclined section. A guide block is provided on one side of the guide seat, and a guide hole is provided at the center of the guide block. A movable plate located inside the body is provided at the bottom of the guide seat. A movable hole that cooperates with the movable plate is provided on the body. Two floating springs connected to both sides of the movable plate are provided inside the body. A fixed plate is provided at one end of each floating spring, and the fixed plate is connected to the body.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows: This invention provides a tension control device for cotton yarn twisting. It features two swingable tensioning arms with tensioning wheels that contact the cotton yarn. The cotton yarn passes through the tensioning device in an S-shape. A tensioning motor simultaneously controls the relative angle of the two tensioning arms to adjust the yarn tension. A guide, under the action of a floating spring, adapts to the adjustment of the tensioning device, further improving the yarn tension performance. This invention is rationally designed, acts on the cotton yarn through multiple points / lines, offers good adjustment performance, and is highly practical and suitable for large-scale application. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A schematic diagram of a tension control device for cotton yarn twisting provided in this embodiment; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 A perspective view of the tensioner provided for an embodiment; Figure 4 Top view of the tensioner provided for the embodiment; Figure 5 for Figure 4 Cross-sectional view of the tensioner along the GG direction; In the above figures: 1. Machine body; 1a. Horizontal section; 1b. First inclined section; 1c. Second inclined section; 2. Spindle frame; 3. Steel ring; 4. Vertical roller; 5. Tensioning device; 51. Mounting base; 511. Square plate; 512. Mounting ring; 513. Connecting hole; 514. Annular groove cover; 515. Mounting hole; 516. Limiting plate; 52. Tensioning arm; 53. Tensioning wheel; 54. Tensioning shaft; 55. Driven gear; 56. Driving gear ring; 57. Transmission device; 571. Baffle part; 572. Transmission plate; 573. Bearing ring; 574. Transmission shaft; 58. Tensioning adjustment motor; 6. Guide; 61. Guide seat; 62. Guide block; 63. Moving plate; 64. Floating spring; 65. Fixed plate; 7. Twisting roller; 8. Yarn roller; 9. Winding motor; 10. Twisting motor; 11. Support frame. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0014] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0015] Examples, such as Figures 1-5 As shown, the present invention provides a tension control device for twisting cotton yarn, comprising a machine body 1. A spindle frame 2 is provided on one side of the machine body 1. A steel ring 3 and a vertical roller 4 connected to the machine body 1 are provided above the spindle frame 2. The surface of the vertical roller 4 is arc-shaped to support the cotton yarn to be drawn upward to the tensioning device 5. The upper surface of the machine body 1 includes a horizontal section 1a, a first inclined section 1b, and a second inclined section 1c distributed from top to bottom. The tensioning device 5 and a guide 6 are provided on the second inclined section 1c. A twisting roller 7 is provided on the horizontal section 1a. A yarn roller 8 is provided above the twisting roller 7. A winding motor 9 and a twisting motor 10 are respectively provided at the shaft end of the yarn roller 8 and the shaft end of the twisting roller 7. A support frame 11 for mounting the yarn roller 8 is provided on the machine body 1. The steel ring 3 can be equipped with a steel ring that runs along its top edge to guide the cotton yarn, or a steel ring 3 with a smaller diameter can be used to directly guide the cotton yarn without using a steel ring; the second inclined section 1c is close to the position where the cotton yarn is guided up from the spindle, so using the second inclined section 1c as the mounting surface for the guide 6 and the tensioning wheel 53 can help improve the tension and guiding performance; the first inclined section 1b can be equipped with a panel for controlling the winding motor 9 and the twisting motor 10, and the panel is connected to the winding motor 9 and the twisting motor 10 by wires; the twisting roller 7 and the yarn roller 8 complete the final twisting and winding of the cotton yarn at the top of the machine body 1.

[0016] Based on this, the tensioning device 5 provided by this utility model includes a mounting base 51 parallel to the second inclined section 1c. Two tensioning arms 52 are provided on the mounting base 51 and are symmetrically distributed. A tensioning wheel 53 is provided at one end of the tensioning arm 52 facing the center of the mounting base 51. A tensioning shaft 54 ​​is provided at one end of the tensioning arm 52 near the edge of the mounting base 51. A driven gear 55 is provided at the shaft end of the tensioning shaft 54 ​​and is located inside the mounting base 51. A driving gear ring 56 is provided on the transmission side of the driven gear 55. A transmission device 57 is provided at the center of the driving gear ring 56. A tension adjustment motor 58 is provided at the power input end of the transmission device 57 and is located inside the body 1. Specifically, the tensioning device 5 adopts a horizontal structure and is installed on the second inclined section 1c. It provides two swingable tensioning arms 52. The tensioning wheel 53 on the tensioning arm 52 has an arc-shaped groove that can contact the cotton yarn. The cotton yarn passes through the two contact points / lines of the tensioning device 5 in an S-shape. The tension adjusting motor 58 drives the transmission 57 to rotate. The transmission 57 drives the driving gear ring 56. The driving gear ring 56 simultaneously meshes with two driven gears 55, thereby controlling the relative angle of the two tensioning arms 52 at one time to achieve the purpose of adjusting the tension of the cotton yarn. In addition to its transmission function, the driving gear ring 56 can also increase the center distance between the driven gear ring and the mounting base 51 through its actual diameter, leaving sufficient range of motion for the swing of the tensioning arm 52. This tensioning device 5 acts on the cotton yarn through multiple points / lines, has good tension performance, and can achieve motorized adjustment. It can meet the requirements of yarn twisting and has strong practicality.

[0017] Furthermore, the tensioning arm 52 provided by this utility model has an arc-shaped structure and the arc centers of the two tensioning arms 52 are in opposite directions. By adopting an arc-shaped design with opposite arc centers, the staggered angle of the two tensioning wheels 53 can better spread the cotton yarn into an S-shape, and the arm body of the tensioning arm 52 will not directly rub against the cotton yarn, which is conducive to ensuring the quality of the cotton yarn.

[0018] To improve the installation reliability of the tensioning device 5 on the body 1, the mounting base 51 provided by this utility model includes a square plate 511. A mounting ring 512 is provided on one side of the square plate 511. The mounting ring 512 cooperates with the mounting opening on the body 1. The square plate 511 is provided with connecting holes 513 for installing screws near its four corners. An annular groove cover 514 is provided on the side of the square plate 511 facing away from the mounting ring 512. The annular groove cover 514 is provided with mounting holes 515 for installing the tensioning shaft 54. An arc-shaped limiting plate 516 is provided on the side of the annular groove cover 514 away from the mounting hole 515. The central angle of the limiting plate 516 is less than 90°. The mounting ring 512 nests with the mounting opening to determine the basic position of the tensioning device 5; four screws can fix the square plate 511 from different positions; the annular groove cover 514 and the square plate 511 are integrally formed, and its interior is used to install the driving gear ring 56 and the driven gear 55, while the exterior of the annular groove cover 514 is used to install the tensioning arm 52; the arc length design of the limiting plate 516 on the annular groove cover 514 can avoid the conventional threading path of the cotton yarn, and for abnormally jumping cotton yarn, the limiting plate 516 can play a limiting role to prevent the cotton yarn from leaving the tensioning path.

[0019] To improve the fit and transmission performance between the transmission device 57 and the mounting base 51, the transmission device 57 provided by this utility model has a T-shaped structure. The transmission device 57 includes a baffle portion 571, which is nested with the inner top wall of the annular groove cover 514. One end of the baffle portion 571 is provided with a transmission plate 572 that is tightly fitted with the drive gear ring 56. One end of the transmission plate 572 is provided with a bearing ring 573 that fits with the mounting ring 512. The inner side of the bearing ring 573 is provided with a transmission shaft 574, which is connected to the tension adjustment motor 58. The baffle portion 571 forms a sealing assembly surface at the end of the annular groove cover 514, preventing excessive cotton yarn or lint from entering between the driving gear ring 56 and the driven gear 55. The bearing ring 573 forms a smooth support with the mounting ring 512 to improve the coaxiality of the continuous rotation of the transmission 57. The transmission shaft 574 extends into the machine body 1 and connects to the tension adjusting motor 58 to achieve power connection. The transmission shaft 574 can be directly connected to the output shaft of the tension adjusting motor 58 by welding, or the transmission connection can be completed by coupling. The tension adjusting motor 58 can be fixed inside the machine body 1 using a motor bracket.

[0020] Considering that the cotton yarn has the characteristic of rising upwards after passing through the guide 6 before connecting to the twisting roller 7, in order to improve the tension performance of the cotton yarn in this device, the guide 6 provided by this utility model includes a guide seat 61 that cooperates with the second inclined section 1c. A guide block 62 is provided on one side of the guide seat 61. A guide hole is provided in the center of the guide block 62. A movable plate 63 located inside the machine body 1 is provided at the bottom of the guide seat 61. A movable hole that cooperates with the movable plate 63 is provided on the machine body 1. Two floating springs 64 connected to both sides of the movable plate 63 are provided inside the machine body 1. A fixed plate 65 is provided at one end of the floating spring 64. The fixed plate 65 is connected to the machine body 1. Specifically, the guide seat 61 and the guide block 62 are fixed together by screws or direct welding. The guide seat 61 uses the second inclined section 1c as the mounting surface. After the cotton yarn is drawn out from the tensioning device 5, it is drawn out through the guide hole and then lifted onto the twisting roller 7. Furthermore, the guide 6 can move along the length direction of the moving hole through the moving plate 63. The moving hole guide 6 provides a reasonable floating range. Under the action of two floating springs 64, the moving plate 63 can make the guide seat 61 adapt to the adjustment of the tensioning device 5, which can further improve the tensioning performance of the cotton yarn.

[0021] 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 other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A tension control device for cotton yarn twisting, comprising a machine body, a spindle frame disposed on one side of the machine body, a steel ring and a vertical roller connected to the machine body disposed above the spindle frame, the upper surface of the machine body comprising a horizontal section, a first inclined section and a second inclined section distributed sequentially from top to bottom, a tensioning device and a guide disposed on the second inclined section, a twisting roller disposed on the horizontal section, a yarn roller disposed above the twisting roller, a winding motor and a twisting motor respectively disposed at the shaft end of the yarn roller and the shaft end of the twisting roller, and a support frame for mounting the yarn roller disposed on the machine body, characterized in that... The tensioning device includes a mounting base parallel to the second inclined section. Two centrally symmetrically distributed tensioning arms are provided on the mounting base. A tensioning wheel is provided at one end of each tensioning arm facing the center of the mounting base. A tensioning shaft is provided at one end of each tensioning arm near the edge of the mounting base. A driven gear is provided at the end of the tensioning shaft inside the mounting base. A driving gear ring is provided on the transmission side of the driven gear. A transmission device is provided at the center of the driving gear ring. A tension adjustment motor is provided at the power input end of the transmission device. The tension adjustment motor is located inside the machine body.

2. The tension control device for cotton yarn twisting according to claim 1, characterized in that, The tensioning arm has an arc-shaped structure and the centers of the two tensioning arms are in opposite directions.

3. The tension control device for cotton yarn twisting according to claim 2, characterized in that, The mounting base includes a square plate with a mounting ring on one side. The mounting ring mates with a mounting opening on the machine body. The square plate has connecting holes for mounting screws near its four corners. The square plate has an annular groove cover on the side facing away from the mounting ring. The annular groove cover has mounting holes for mounting a tensioning shaft. The annular groove cover has an arc-shaped limiting plate on the side away from the mounting holes. The central angle of the limiting plate is less than 90°.

4. The tension control device for cotton yarn twisting according to claim 3, characterized in that, The transmission device has a T-shaped structure and includes a baffle portion that is nested with the inner top wall of the annular groove cover. One end of the baffle portion is provided with a transmission plate that is tightly fitted with the drive gear ring, and one end of the transmission plate is provided with a bearing ring that fits with the mounting ring. A transmission shaft is provided inside the bearing ring, and the transmission shaft is connected to the tension adjustment motor.

5. The tension control device for cotton yarn twisting according to claim 1, characterized in that, The guide includes a guide seat that cooperates with the second inclined section. A guide block is provided on one side of the guide seat. A guide hole is provided in the center of the guide block. A movable plate located inside the body is provided at the bottom of the guide seat. A movable hole that cooperates with the movable plate is provided on the body. Two floating springs connected to both sides of the movable plate are provided inside the body. A fixed plate is provided at one end of each floating spring. The fixed plate is connected to the body.

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