A waste thread tension stand

By designing a waste selvage tension frame, the problem of uneven tension caused by the complex yarn path was solved, achieving uniform tension on the yarn and improving loom efficiency and fabric quality.

CN224394294UActive Publication Date: 2026-06-23SHAANXI YUANFENG TEXTILE TECH RES

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI YUANFENG TEXTILE TECH RES
Filing Date
2025-07-18
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The complex yarn path of traditional waste selvage frames leads to uneven yarn tension, making the yarn prone to breakage and affecting loom efficiency and fabric quality.

Method used

Design a waste selvage tension frame, including a waste selvage frame, a first yarn guiding device, a tensioning device, and a second yarn guiding device. Through reasonable layout, the yarn path tends to be straight. It adopts a stainless steel rod and a yarn guiding ceramic eye structure, combined with a tensioner to adjust the yarn tension.

Benefits of technology

It achieves uniform yarn tension, reduces breakage, improves loom efficiency and fabric quality, and reduces downtime and production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a waste edge yarn tension frame relates to textile technical field, including the waste edge yarn frame, first yarn guide device, tension device and second yarn guide device who sets up in sequence, and the waste edge yarn frame includes the yarn frame bottom plate, is provided with a plurality of groups of connecting rods on the yarn frame bottom plate, and the inclination of same group's a plurality of connecting rods is same, and the connecting rod is used for placing the waste edge yarn drum, first yarn guide device includes a plurality of yarn guide frame, and a plurality of groups of connecting rods are respectively towards the yarn guide frame inclination, is provided with a plurality of first yarn guide porcelain eye on the yarn guide frame, tension device includes a plurality of vertical yarn frame bottom plate setting's tension frame bottom plate, is provided with a plurality of tension ware on the tension frame bottom plate, and a plurality of yarn guide frames are respectively close to the tension frame bottom plate setting, second yarn guide device includes the yarn guide plate, and the yarn guide plate is perpendicular to the tension frame bottom plate setting, is provided with a plurality of second yarn guide porcelain eye on the yarn guide plate, makes the waste edge yarn's yarn route tend to straight line, avoids the instability of tension in the loom operation process.
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Description

TECHNICAL FIELD

[0001] The utility model relates to textile technology field, specifically, relate to a waste edge yarn tension frame. BACKGROUND

[0002] Waste edge yarn tension frame is the device that sets up independently in weaving equipment, and it is mainly used for carrying and managing waste edge yarn bobbin.

[0003] However, the traditional waste edge yarn frame because the yarn walk yarn route is tortuous, yarn needs first to pull up again to guide down, and this complex trend has brought many disadvantages. UTILITY MODEL CONTENTS

[0004] The utility model discloses a waste edge yarn tension frame, which is characterized by the following.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] The utility model provides a waste edge yarn tension frame, which comprises a waste edge yarn frame, a first yarn guide device, a tension device and a second yarn guide device arranged in sequence.

[0007] The first yarn guide device comprises a plurality of yarn guide frames, and a plurality of groups of connecting rods are inclined towards the yarn guide frames respectively.

[0008] The tension device comprises a plurality of tension frame bottom plates arranged perpendicularly to the yarn frame bottom plate.

[0009] The second yarn guiding device includes a yarn guiding plate, which is arranged perpendicular to the tension frame base plate, and the yarn guiding plate is provided with a plurality of second yarn guiding ceramic eyes.

[0010] Optionally, the number of the first yarn guide ceramic eyes on the yarn guide frame is the same as the number of the connecting rods inclined toward it, the number of the tensioners on the tension frame base plate is the same as the number of the first yarn guide ceramic eyes on the corresponding yarn guide frame, and the number of the second yarn guide ceramic eyes is the same as the total number of the tensioners, so that the waste yarn on the waste yarn bobbin is threaded in a single line and passes through the corresponding first yarn guide ceramic eyes, the tensioners and the second yarn guide ceramic eyes in sequence.

[0011] Optionally, the yarn guide frame is a yarn guide rod, which is arranged parallel to the side of the tension frame base plate near the yarn frame base plate, and each set of connecting rods is distributed along the extension direction of the yarn guide rod.

[0012] Optionally, the number of yarn guide rods is two, and the tension device includes two tension frame base plates arranged in opposite directions, with tensioners respectively arranged on their opposite sides. The number of yarn guide rods is two, and four sets of connecting rods are arranged on the yarn frame base plates, with adjacent sets of connecting rods inclined toward the same yarn guide rod direction.

[0013] Optionally, the end of the connecting rod is provided with a protrusion to prevent the waste yarn bobbin from falling off.

[0014] Optionally, the tensioner includes a screw threadedly connected to the tension frame base plate, with a first disc, a second disc, and a tension spring sequentially fitted between the screw nut and the tension frame base plate, the waste selvage yarn passing between the first disc and the second disc, and the nut used to adjust the tension of the corresponding waste selvage yarn.

[0015] Optionally, ceramic is embedded in the first and second yarn guide ceramic eyes.

[0016] The beneficial effects that this utility model can produce include:

[0017] The connecting rod for the waste selvage yarn bobbin is inclined towards the yarn guide frame. The rational layout and coordination of the waste selvage yarn frame, the first yarn guide device, the tension device, and the second yarn guide device ensure that the yarn path of the waste selvage yarn is nearly straight, avoiding tension instability during loom operation. The yarn experiences more even force during movement, effectively preventing uneven friction and traction caused by yarn zigzags, thus maintaining constant tension. This is beneficial for stable weaving and reduces fabric defects caused by tension fluctuations, such as weft shrinkage and slippage. Furthermore, it avoids stress concentration and frequent friction with the yarn guide components during multiple direction changes, reducing the risk of yarn breakage, minimizing downtime, improving loom efficiency, and ensuring continuous production. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a waste selvage tension frame provided in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the tensioner according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the stainless steel rod according to an embodiment of this application.

[0022] Icons: 1. Yarn frame base plate; 2. Stainless steel rod; 3. Yarn guide rod; 31. First yarn guide ceramic eye; 4. Tension frame base plate; 5. Tensioner; 51. Stainless steel disc; 52. Tension spring; 53. Screw; 54. Nut; 6. Yarn guide plate; 61. Second yarn guide ceramic eye; 7. Waste yarn tube. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. It should be noted that, without conflict, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0024] In the textile weaving process, waste selvage yarn plays a significant role. It not only ensures the weft yarn is effectively fixed during weaving, preventing loosening or rebound, but also reduces defects such as weft shrinkage and slippage. In commonly used weaving equipment, the waste selvage device is often designed and manufactured independently of the loom. To ensure good waste selvage formation, the number of waste selvage yarns should be at least 14, and the tension of each waste selvage yarn must be adjustable during weaving. Changing the waste selvage yarn bobbins should also be convenient for the operator, avoiding excessive time spent changing the bobbins and affecting loom efficiency. In existing waste selvage yarn holders, the waste selvage yarn bobbins are placed vertically with the narrow end facing upwards. After unwinding, the yarn must travel an upward and then downward path to reach the tensioner. This yarn path is complex, resulting in uneven yarn tension control. Furthermore, factors such as poor bobbin formation can lead to discontinuous unwinding and unstable tension, easily causing waste selvage yarn breakage. Additionally, after weft insertion, the weft yarn is not tightly clamped, resulting in weft shrinkage defects and affecting loom efficiency. After the waste yarn bobbins are used up, the machine operator needs to change the bobbins. This requires guiding the yarn into the channel. For shorter machine operators, this method makes it difficult to see the yarn's path clearly, resulting in a long bobbin changing time and low efficiency.

[0025] To reduce loom downtime caused by broken selvage yarn during weaving, effectively control the tension of selvage yarn, improve labor productivity, and simplify the bobbin changing operation for the operator, this application provides a selvage yarn tension frame. This addresses the problem of existing selvage yarn tension frames having a tortuous yarn path, which adds extra tension during weaving, leading to unstable tension and frequent yarn breakage. The complex yarn path also makes bobbin changing time-consuming and laborious for the operator. By setting the yarn path and the angle of the stainless steel rod, the selvage yarn path can be made as straight as possible, maintaining stable tension during weaving, reducing factors that could cause yarn breakage, and improving loom efficiency. The stainless steel rod on the yarn frame, which holds the selvage yarn, has a 2mm protrusion at the top to prevent accidental bobbin drops during weaving, reducing the operator's extra workload.

[0026] likeFigure 1 As shown, the waste yarn tension frame provided in Embodiment 1 of this application includes a waste yarn frame, a first yarn guiding device, a tensioning device, and a second yarn guiding device arranged sequentially. In this embodiment, the waste yarn frame includes a yarn frame base plate 1, on which a plurality of sets of connecting rods are provided. The connecting rods are stainless steel rods 2, and the inclination of the plurality of stainless steel rods 2 in the same set is the same. The stainless steel rods 2 are used to place waste yarn bobbins. The first yarn guiding device includes a plurality of yarn guiding frames, and the plurality of sets of connecting rods are inclined toward one of the yarn guiding frames respectively. The yarn guiding frame is provided with a plurality of first yarn guiding ceramic eyes 31. The tensioning device includes a plurality of tension frame base plates 4 arranged perpendicular to the yarn frame base plate 1. The tension frame base plates 4 are provided with a plurality of tensioners 5, and the plurality of yarn guiding frames are respectively arranged close to the tension frame base plates 4. The second yarn guiding device includes a yarn guiding plate 6, which is arranged perpendicular to the tension frame base plate 4. The yarn guiding plate 6 is provided with a plurality of second yarn guiding ceramic eyes 61.

[0027] In this embodiment, the number of first yarn guide eyes 31 on the yarn guide frame is the same as the number of connecting rods inclined towards it. The number of tensioners 5 on the tension frame base plate 4 is the same as the number of first yarn guide eyes 31 on the corresponding yarn guide frame. The number of second yarn guide eyes 61 is the same as the total number of tensioners 5. This ensures that the waste yarn on the waste yarn bobbin travels as a single thread and passes through the corresponding first yarn guide eye 31, tensioner 5, and second yarn guide eye 61 in sequence. This guarantees that each waste yarn can independently and accurately pass through the corresponding first yarn guide eye 31, tensioner 5, and second yarn guide eye 61 in sequence, avoiding mutual entanglement and interference between yarns, improving the accuracy of yarn tension control, ensuring that each yarn can operate under optimal tension, and improving weaving stability and fabric quality.

[0028] The yarn guide frame consists of yarn guide rods 3, which are parallel to the side of the tension frame base plate 4 near the yarn frame base plate 1. Each set of connecting rods is distributed along the extension direction of the yarn guide rod 3. This makes the entire device more compact and reasonable, facilitating the guidance and management of waste yarn, while also improving space utilization and simplifying operation and maintenance. The tension device includes two tension frame base plates 4 arranged opposite each other, with tensioners 5 installed on their opposite sides. There are two yarn guide rods 3, and four sets of connecting rods are installed on the yarn frame base plate 1. Adjacent sets of connecting rods are inclined towards the same yarn guide rod 3, which makes the distribution of waste yarn more uniform, the stress on each yarn more balanced, further improving the stability of tension control and reducing tension differences and fabric defects caused by uneven yarn distribution. The ends of the connecting rods are provided with protrusions to prevent waste yarn bobbins 7 from falling, effectively avoiding accidental drops of waste yarn bobbins during placement and use on the yarn frame, ensuring production continuity and safety, reducing downtime and production accidents that may be caused by dropped waste yarn bobbins, and lowering production costs.

[0029] The tensioner 5 includes a screw 53 threaded onto the tension frame base plate 4. A first disc 51, a second disc 52, and a tension spring 52 are sequentially fitted between the screw 53's nut 54 and the tension frame base plate 4. Waste yarn passes between the first disc 51 and the second disc 52. The nut 54 is used to adjust the tension of the corresponding waste yarn. By rotating the nut 54, the compression degree of the tension spring 52 can be precisely adjusted, thereby achieving precise control of the waste yarn tension. Ceramic is embedded in the first yarn guide eye 31 and the second yarn guide eye 61 to reduce wear on the eye during yarn guiding and extend the lifespan of the yarn guide eye.

[0030] like Figure 1 As shown, on the plane of the yarn rack base plate 1, stainless steel rods 2, each 15cm apart and 18cm long including the starting point, are welded together. The stainless steel rods 2 are numbered sequentially as 1, 2, 3…16. There are a total of 4 sets of stainless steel rods 2, along… Figure 1 From the viewing angle, the two sets of stainless steel rods on the left are tilted towards one of the yarn guide rods 3. The tilt angle of the outer set of stainless steel rods is 53.13°, and the tilt angle of the inner set of stainless steel rods is 75.96°. The same applies to the right side, with the tilt direction as follows. Figure 3 As shown. In Figure 1 In the yarn frame, the angle between stainless steel rods 2 (numbers 1, 4, 5, 6, 9, 12, 13, and 16) and the plane of the yarn frame base plate 1 is 53.13°, while the angle between stainless steel rods 2 (numbers 2, 3, 7, 8, 10, 11, 14, and 15) and the plane of the yarn frame is 75.96°. All stainless steel rods 2 (numbers 1-16), each 18cm in length, have a 2mm protrusion at their top.

[0031] The tension frame base plate 4 is made of stainless steel. Eight tensioners 5, numbered 1-8, are evenly distributed on the 15cm long and 9cm wide base plate 4, with a 3cm distance between each tensioner 5. A yarn guide rod 3 is located on the side of the tension frame base plate 4 closest to the yarn frame base plate 1, and eight yarn guide holes are evenly distributed on the yarn guide rod 3. A tension frame base plate 4 is fabricated on the back of the tension frame base plate 4 using the same method, with tensioners 5 numbered 9-16 on it. The corresponding yarn guide rods 3 are located on the side of tensioners 5 numbered 9-12.

[0032] like Figure 2 As shown, the tensioner 5 includes a screw 53 with a diameter of 5mm and a length of 3.5cm. Two stainless steel discs with a diameter of 2cm, a first disc 51 and a second disc 52, a tension spring 52, and a nut 54 are sequentially fitted on the screw 53. The yarn passes through the two stainless steel discs, the first disc 51 and the second disc 52. The nut 54 is used to adjust the tension of the yarn.

[0033] The yarn guide plate 6 is a stainless steel plate 10cm long and 2cm wide, with 16 second yarn guide ceramic eyes 61, numbered 1-16. The diameter of the first yarn guide ceramic eye 31 and the second yarn guide ceramic eye 61 is 2mm, and the surface of the channel is inlaid with ceramic material.

[0034] The workflow of the waste selvage yarn tension frame provided in this embodiment is as follows: 16 waste selvage yarn bobbins 7 are neatly placed on the stainless steel rods 2 of the yarn frame base plate 1. The yarn on bobbin 1 passes sequentially through the first guide eye 31, the tensioner 5, and the second guide eye 61. The yarn paths on bobbins 2-16 are the same as those on bobbin 1; simply find the channel with the same number and pass through it from the middle. The yarn tension can be adjusted by rotating the nut 54 to ensure that the tension of the 16 waste selvage yarns is as consistent as possible, meeting weaving requirements.

[0035] The 16 stainless steel rods 2 for collecting waste selvage yarn each have different included angles, making the yarn path of the 16 waste selvage yarns tend to be straight, avoiding unstable tension during loom operation and thus reducing loom efficiency; the top of each stainless steel rod 2 has a 2mm protrusion, which can prevent the waste selvage yarn bobbin 7 from falling off the stainless steel rod 2 when it is light; the 16 tensioners 5 on the tension frame base plate 4 correspond to the 16 stainless steel rods 2 for collecting waste selvage yarn, ensuring that the yarn is as straight as possible during operation, and that the tension of the 16 yarns is consistent, reducing yarn breakage caused by uneven tension.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waste selvage tension frame, comprising a waste selvage frame, a first yarn guiding device, a tensioning device, and a second yarn guiding device arranged sequentially, characterized in that: The waste yarn rack includes a yarn rack base plate (1), and a number of connecting rods are provided on the yarn rack base plate (1). The inclination of the connecting rods in the same group is the same. The connecting rods are used to place waste yarn cylinders (7). The first yarn guiding device includes several yarn guiding frames, several sets of connecting rods are inclined toward the yarn guiding frames respectively, and several first yarn guiding ceramic eyes (31) are provided on the yarn guiding frames. The tension device includes several tension frame base plates (4) arranged perpendicular to the yarn frame base plate (1), several tensioners (5) are arranged on the tension frame base plate (4), and several yarn guide frames are respectively arranged close to the tension frame base plate (4). The second yarn guiding device includes a yarn guiding plate (6), which is arranged perpendicular to the tension frame base plate (4), and a plurality of second yarn guiding ceramic eyes (61) are provided on the yarn guiding plate (6).

2. The waste selvage tension frame according to claim 1, characterized in that, The number of the first yarn guide ceramic eyes (31) on the yarn guide frame is the same as the number of the connecting rods inclined toward it. The number of the tensioners (5) on the tension frame base plate (4) is the same as the number of the first yarn guide ceramic eyes (31) on the corresponding yarn guide frame. The number of the second yarn guide ceramic eyes (61) is the same as the total number of the tensioners (5), so that the waste yarn on the waste yarn tube (7) can be threaded in a single line and pass through the corresponding first yarn guide ceramic eyes (31), tensioners (5) and second yarn guide ceramic eyes (61) in sequence.

3. The waste selvage tension frame according to claim 1, characterized in that, The yarn guide frame is a yarn guide rod (3). The yarn guide rod (3) is set parallel to the side of the tension frame base plate (4) near the yarn frame base plate (1). Each set of connecting rods is distributed along the extension direction of the yarn guide rod (3).

4. The waste selvage tension frame according to claim 3, characterized in that, The tension device includes two tension frame base plates (4) arranged opposite to each other, with tensioners (5) respectively arranged on their opposite sides. There are two yarn guide rods (3). Four sets of connecting rods are arranged on the yarn frame base plate (1), and two adjacent sets of connecting rods are inclined toward the same yarn guide rod (3).

5. The waste selvage tension frame according to claim 1, characterized in that, The end of the connecting rod is provided with a protrusion.

6. The waste selvage tension frame according to claim 1, characterized in that, The tensioner (5) includes a screw threaded onto the tension frame base plate (4). A first disc, a second disc, and a tension spring (52) are sequentially fitted between the screw nut (54) and the tension frame base plate (4). The waste selvage is used to pass between the first disc and the second disc. The nut (54) is used to adjust the tension of the corresponding waste selvage.