Tension adjusting device and method for spandex precursor conveying equipment

Abstract

The invention relates to the technical field of spinning, and particularly discloses a tension adjusting device and method for spandex precursor conveying equipment. The two ends of the first adjusting roller and the second adjusting roller are rotationally installed at the two ends of the adjusting frame and can synchronously move up and down in the plumb line direction of the adjusting frame, and the up-down moving directions of the first adjusting roller and the second adjusting roller are opposite; and the pressure sensor is mounted at a rotating shaft of the first guide roller. The first adjusting roller and the second adjusting roller are actively driven by the driving part to move on the adjusting frame, an elastic element in the prior art is not needed, the first adjusting roller and the second adjusting roller are made to get close to each other, spandex filaments are extruded, the tension of the spandex filaments is increased, and when the first adjusting roller and the second adjusting roller get away from each other, the tension of the spandex filaments is increased. The path of the spandex yarn can be changed, and the tension of the spandex yarn can be reduced through the path, so that the yarn breaking condition is avoided.

Description

Technical Field

[0001] The invention relates to the field of textile technology, and in particular to a tension regulating device and method for equipment for conveying spandex raw yarn. Background Art

[0002] The tension adjustment device of the spandex yarn conveying equipment is an important device to ensure that the spandex yarn maintains proper tension during the conveying process. The design and implementation of this device usually need to consider the characteristics of the spandex yarn, such as high elasticity and low modulus, to ensure the stability of the conveying process and product quality. The tension adjustment device is mainly used to control the tension of the spandex yarn during the conveying process to prevent problems such as broken yarn, wrinkling or uneven stretching caused by excessive or insufficient tension. By accurately controlling the tension of the spandex yarn, the stability and consistency of the conveying process can be ensured, thereby improving the quality and performance of the product;

[0003] For example, the prior art patent: CN214244726U discloses: an intelligent tension adjustment device for spandex coated yarns, which measures the pressure on the wheel body of the wire wheel through which the weaving wire passes, thereby regulating the guide wheel to achieve tension control during the weaving wire transmission, and the return spring is lower than the retaining ring to limit the support rod in the guide frame to prevent the wire wheel from shaking, and the motor drives the adjusting wheel to rotate, so that the end of the support rod is on the top surface at different heights, thereby achieving position adjustment of the guide frame;

[0004] The tension adjustment device of the spandex yarn in the conveying process of the prior art can usually only adjust the position of the adjusting roller to change the extrusion strength between the adjusting roller and the spandex yarn to achieve the effect of adjusting the tension. When increasing the running tension of the spandex yarn, simply using the spring extrusion method, the extrusion recovery force of the spring can easily make the tension of the spandex yarn too large, and there is a risk of breakage. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] The present invention provides a tension adjustment device and method for a spandex raw yarn conveying device, which can solve the problem that the prior art uses springs to control the spandex yarn tension, which has the risk of breakage. The specific scheme is as follows:

[0007] In one aspect, the present invention provides a tension adjustment device for a spandex raw yarn conveying device, comprising:

[0008] Adjustment rack;

[0009] A first adjusting roller and a second adjusting roller, both ends of which are rotatably mounted on both ends of the adjusting frame and can be synchronously moved up and down along the plumb line direction of the adjusting frame, and the up and down movement directions of the first adjusting roller and the second adjusting roller are opposite;

[0010] The first guide roller and the second guide roller, both ends of which are rotatably connected to the two ends of the adjustment frame, and the path of the spandex yarn entering the tension adjustment device is: the outer wall of the second adjustment roller, the outer wall of the first guide roller, the outer wall of the first adjustment roller, and the outer wall of the second guide roller;

[0011] A pressure sensor is installed at the rotating shaft of the first guide roller, and is used to detect the extrusion force generated when the spandex yarn passes through the first guide roller. The tension of the spandex yarn is detected by the value of the pressure sensor, and based on the tension, the synchronization component can drive the first adjusting roller and the second adjusting roller to move up and down.

[0012] Preferably, the pressure sensor is arranged at the rotating shaft of the first guide roller, and the pressure sensor is fixedly connected to the adjustment frame. When the spandex yarn passes through the first guide roller, the spandex yarn applies pressure to the first guide roller.

[0013] Preferably, when the first adjusting roller and the second adjusting roller are close to each other, the spandex yarn can be squeezed to increase the tension of the spandex yarn. When the first adjusting roller and the second adjusting roller are away from each other, the path of the spandex yarn is changed to reduce the tension of the spandex yarn.

[0014] Preferably, the synchronization component includes:

[0015] A sliding plate, the sliding plates are respectively installed at both ends of the first adjusting roller and the second adjusting roller, one end of the sliding plate is fixedly connected with a slider, an end of the adjusting frame is provided with an adjusting groove, an inner wall of the adjusting groove is provided with a slide groove, the slider is slidably connected with the slide groove, an end of the sliding plate is provided with a rotating hole, the ends of the first adjusting roller and the second adjusting roller are fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected with the rotating hole;

[0016] A first rack, fixed to an adjacent end of the upper and lower sliding plates, and the teeth of the two first racks are located on an adjacent side of the two first racks;

[0017] The first gear is installed between the two first racks, and the first gear is meshed with the two first racks.

[0018] Preferably, a pay-off drum is provided at the bottom entry end of the spandex yarn, a fixing seat is connected to the bottom of the base, a plurality of cross bars are mounted on the fixing seat, the pay-off drum is rotatably mounted on the cross bars, and the pay-off drum can rotate under the pulling of the spandex yarn.

[0019] Preferably, a differential assembly is also included, and the differential assembly includes:

[0020] A lower pressure block is arranged on the outer wall of the second adjusting roller, a friction block is arranged at one end of the lower pressure block close to the outer wall of the second adjusting roller, a movable groove is opened in the middle of the lower pressure block, the friction block is slidably connected to the inner wall of the movable groove, and a spring is connected between the friction block and the inner wall of the movable groove.

[0021] Preferably, the differential assembly further comprises:

[0022] a second gear, the second gear being fixedly connected to an outer end of the first gear;

[0023] A driving frame is sleeved on the outside of the second gear, one inner wall of the driving frame is connected with a second rack, and the second rack is meshed with the second gear.

[0024] Preferably, the driving frame is fixedly connected to the lower pressure block via a connecting rod, the inner side of the connecting rod is connected to a limiting block, the outer wall of the adjusting frame is provided with a limiting groove matching the limiting block, the limiting block is slidably connected to the limiting groove, and the outer wall of the connecting rod is fixedly connected to a fixing frame.

[0025] On the other hand, the present invention provides a method for adjusting the tension of a spandex raw yarn conveying device, comprising the following steps:

[0026] S1, configuring an adjusting frame, a first adjusting roller and a second adjusting roller;

[0027] S2, distributing the first adjusting roller and the second adjusting roller up and down in the middle of the adjusting frame;

[0028] S3, configuring a first guide roller and a second guide roller, allowing the spandex yarn to pass through the outer wall of the second adjusting roller, the outer wall of the first guide roller, the outer wall of the first adjusting roller, and the outer wall of the second guide roller at one time;

[0029] S4, configuring a pressure sensor, and installing the sensor at a position where the tension value of the spandex yarn can be detected;

[0030] S5. Based on the pressure value detected by the pressure sensor, the first adjusting roller and the second adjusting roller are driven up and down by a driving member. When the first adjusting roller and the second adjusting roller are close to each other, the tension of the spandex yarn increases. When the first adjusting roller and the second adjusting roller are away from each other, the tension of the spandex yarn decreases.

[0031] Preferably, the first guide roller and the second guide roller are respectively arranged on both sides of the adjustment frame to support the spandex yarn.

[0032] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0033] 1. The first adjusting roller and the second adjusting roller are actively driven to move on the adjusting frame by a driving member, and the elastic element in the prior art is not required. The first adjusting roller and the second adjusting roller are brought close to each other to squeeze the spandex yarn, so that the tension of the spandex yarn is increased. When the first adjusting roller and the second adjusting roller are moved away from each other, the path of the spandex yarn can be changed, and this path can reduce the tension of the spandex yarn, thereby avoiding the occurrence of yarn breakage.

[0034] 2. By setting a synchronization component, when the first gear rotates, the upper and lower first racks can move synchronously in opposite directions, and then drive the first adjusting roller and the second adjusting roller to move synchronously in opposite directions, thereby achieving a synchronization effect, so that the first adjusting roller and the second adjusting roller move away from or closer to each other.

[0035] 3. By setting a lower pressure block, when the tension of the spandex yarn is too small when passing through the second adjusting roller, in order not to affect the subsequent processing steps, the lower pressure block is moved close to the second adjusting roller, so that the friction block increases the friction between the second adjusting roller and the second adjusting roller, and the resistance of the spandex yarn when passing through the second adjusting roller is increased, thereby slowing down the running speed of the lower spandex yarn, while the rotation speed of the first adjusting roller is not affected, so that the tension of the spandex yarn gradually increases.

[0036] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0038] Figure 1 It is an overall stereogram of the present invention;

[0039] Figure 2 It is a three-dimensional diagram of another side of the present invention;

[0040] Figure 3 It is a front view of the present invention;

[0041] Figure 4 A three-dimensional diagram of the adjustment frame of the present invention;

[0042] Figure 5 is a three-dimensional diagram of a sliding plate of the present invention;

[0043] Figure 6 A perspective view of the second adjustment roller and the differential assembly of the present invention;

[0044] Figure 7 It is a three-dimensional diagram of two first racks and a first gear of the present invention;

[0045] Figure 8 It is a three-dimensional diagram of the driving frame and the second gear of the present invention.

[0046] The reference numerals are as follows:

[0047] 101. Adjusting frame; 102. Base; 103. Pay-off reel; 104. Spandex yarn; 105. Fixed seat; 106. Adjusting slot; 107. Slide slot; 201. First adjusting roller; 202. Second adjusting roller; 203. First guide roller; 204. Second guide roller; 205. Pressure sensor; 206. Rotating shaft; 207. Sliding plate; 208. Rotating hole; 209. Sliding block; 210. First rack; 211. First gear; 212. Synchronous shaft; 213. Driving frame; 214. Second gear; 215. Second rack; 216. Pressing block; 217. Connecting rod; 218. Limiting block; 219. Movable slot; 220. Friction block; 221. Spring. DETAILED DESCRIPTION

[0048] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used to explain the principles of the present invention together with the embodiments of the present invention.

[0049] Example 1: See Figure 1-Figure 8 This embodiment provides a tension adjustment device for a spandex raw yarn conveying device, which can automatically adjust the tension of the spandex yarn 104, and the device includes:

[0050] The bottom of the adjusting frame 101 is connected to a base 102 by welding or integral molding. The base 102 is placed on the floor of the spinning workshop. In order to avoid shaking during processing, the base 102 can be fixed to the floor of the workshop by bolts so that the entire device can be placed stably.

[0051] The first adjusting roller 201 and the second adjusting roller 202 are rotatably mounted at both ends of the adjusting frame 101, and on the premise of being able to rotate, both ends of the first adjusting roller 201 and the second adjusting roller 202 can also move up and down synchronously along the plumb line direction of the adjusting frame 101. The synchronous up and down movement of the first adjusting roller 201 and the second adjusting roller 202 is achieved by a synchronous component, and the directions of the synchronous movement of the first adjusting roller 201 and the second adjusting roller 202 are opposite.

[0052] The first guide roller 203 and the second guide roller 204 are rotatably connected at both ends to the two ends of the adjustment frame 101. The spandex yarn 104 enters the tension adjustment device through the outer wall of the second adjustment roller 202 located below, the outer wall of the first guide roller 203, the outer wall of the first adjustment roller 201 and the outer wall of the second guide roller 204.

[0053] The pressure sensor 205 is installed at the rotating shaft of the first guide roller 203, and is specifically fixedly connected to the adjustment frame 101. When the spandex yarn 104 passes through the first guide roller 203, the spandex yarn 104 will apply pressure to the first guide roller 203. The tension of the spandex yarn 104 is detected by the value of the pressure sensor 205, and based on the tension, the synchronization component drives the first adjustment roller 201 and the second adjustment roller 202 to move up and down;

[0054] Among them, when the first adjusting roller 201 and the second adjusting roller 202 are close to each other, the spandex yarn 104 can be squeezed to increase the tension of the spandex yarn 104. When the first adjusting roller 201 and the second adjusting roller 202 are away from each other, the path of the spandex yarn 104 can be changed. This path can reduce the tension of the spandex yarn 104, thereby avoiding the occurrence of yarn breakage.

[0055] The synchronization components include:

[0056] Sliding plates 207, which are respectively installed at both ends of the first adjusting roller 201 and the second adjusting roller 202, and are provided with four in total. A slider 209 is fixedly connected to one end of the sliding plate 207, an adjusting groove 106 is provided at the end of the adjusting frame 101, a slide groove 107 is provided on the inner wall of the adjusting groove 106, the slider 209 is slidably connected to the slide groove 107, a rotating hole 208 is provided at the end of the sliding plate 207, a rotating shaft 206 is fixedly connected to the ends of the first adjusting roller 201 and the second adjusting roller 202, and the rotating shaft 206 is rotatably connected to the rotating hole 208;

[0057] The first rack 210 is fixed to an adjacent end of the upper and lower sliding plates 207, and the teeth of the two first racks 210 are located on an adjacent side of the two first racks 210;

[0058] The first gear 211 is installed between the two first racks 210. The first gear 211 meshes with the two first racks 210. When the first gear 211 rotates, the upper and lower first racks 210 can be moved synchronously in opposite directions, thereby driving the first adjusting roller 201 and the second adjusting roller 202 to move synchronously in opposite directions, thereby achieving a synchronization effect;

[0059] A synchronization shaft 212 is connected to the middle of the first gear 211, and the first gears 211 at both ends of the adjustment frame 101 rotate synchronously through the synchronization shaft 212. One end of one of the first gears 211 is connected to a driving member (not shown in the figure), and the driving member can be a motor. The synchronization shaft 212 can be driven to rotate by the motor, so that the two first gears 211 rotate synchronously. A control module is integrated on the motor, and the control module receives the signal of the pressure sensor 205. The motor executes forward and reverse commands according to the pressure value of the pressure sensor 205.

[0060] As an optimization solution, Figure 1 , Figure 2 As shown, a pay-off reel 103 is provided at the bottom entry end of the spandex yarn 104, a fixing seat 105 is connected to the bottom of the base 102, a plurality of cross bars are installed on the fixing seat 105, and the pay-off reel 103 is rotatably installed on the cross bars. Driven by the tension adjusting device, the pay-off reel 103 can rotate under the pull of the spandex yarn 104, thereby achieving the effect of a defense line.

[0061] like Figure 6 , Figure 7 , Figure 8 As shown, as an optimized solution, in order to allow the spandex yarn 104 to quickly recover to a normal tension range when the tension is too low, a differential assembly can be provided, and the differential assembly includes:

[0062] A lower pressing block 216, which is arranged on the outer wall of the second adjusting roller 202. A friction block 220 is arranged at one end of the lower pressing block 216 close to the outer wall of the second adjusting roller 202. In order to improve the wear resistance of the friction block 220, the material of the friction block 220 is preferably ceramic. A movable groove 219 is opened in the middle of the lower pressing block 216. The friction block 220 is slidably connected to the inner wall of the movable groove 219. A spring 221 is connected between the friction block 220 and the inner wall of the movable groove 219.

[0063] In the above scheme, when the tension of the spandex yarn 104 passing through the second adjusting roller 202 and the second adjusting roller 202 is too small, in order not to affect the subsequent processing steps, the lower pressing block 216 is moved close to the second adjusting roller 202, so that the friction block 220 increases the friction between the second adjusting roller 202, and the resistance of the spandex yarn 104 passing through the second adjusting roller 202 is increased, thereby slowing down the running speed of the lower spandex yarn 104, while the rotation speed of the first adjusting roller 201 is not affected, so that the tension of the spandex yarn 104 is gradually increased;

[0064] As an optimized solution, the downward pressing drive of the lower pressing block 216 is realized by the following solution:

[0065] A second gear 214, the second gear 214 is fixedly connected to the outer end of the first gear 211;

[0066] A driving frame 213, the driving frame 213 is sleeved on the outside of the second gear 214, one inner wall of the driving frame 213 is connected with a second rack 215, the second rack 215 is meshed with the second gear 214, and the driving frame 213 is fixedly connected to the lower pressing block 216 via a connecting rod 217;

[0067] The inner side of the connecting rod 217 is connected to a limiting block 218, and the outer wall of the adjusting frame 101 is provided with a limiting groove matching the limiting block 218. The limiting block 218 is slidably connected to the limiting groove. The outer wall of the connecting rod 217 is fixedly connected to a fixing frame 222, and the fixing frame 222 is used to fix the connecting rods 217 at both ends of the adjusting frame 101 together.

[0068] Embodiment 2: The technical solution of this embodiment is different from that of Embodiment 1 in that this embodiment provides a method for adjusting the tension of a spandex raw yarn conveying device, comprising the following steps:

[0069] S1, configuring an adjustment frame 101, a first adjustment roller 201 and a second adjustment roller 202;

[0070] S2, distributing the first adjusting roller 201 and the second adjusting roller 202 up and down in the middle of the adjusting frame 101;

[0071] S3, configuring a first guide roller 203 and a second guide roller 204, allowing the spandex yarn 104 to pass through the outer wall of the second adjusting roller 202, the outer wall of the first guide roller 203, the outer wall of the first adjusting roller 201 and the outer wall of the second guide roller 204 at one time, the first guide roller 203 and the second guide roller 204 are respectively arranged on both sides of the adjusting frame 101, for supporting the spandex yarn 104;

[0072] S4, configuring a pressure sensor 205, and installing the sensor 205 at a position where the tension value of the spandex yarn 104 can be detected;

[0073] S5. Based on the pressure value detected by the pressure sensor 205, the first adjusting roller 201 and the second adjusting roller 202 are driven up and down by a driving member. When the first adjusting roller 201 and the second adjusting roller 202 are close to each other, the tension of the spandex yarn 104 increases. When the first adjusting roller 201 and the second adjusting roller 202 are away from each other, the tension of the spandex yarn 104 decreases.

[0074] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0075] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A tension adjustment device for a spandex raw yarn conveying device, characterized in that: include: Adjustment frame (101); A first adjusting roller (201) and a second adjusting roller (202), both ends of which are rotatably mounted on both ends of the adjusting frame (101) and are capable of synchronously moving up and down along the plumb line direction of the adjusting frame (101), and the up and down movement directions of the first adjusting roller (201) and the second adjusting roller (202) are opposite; The first guide roller (203) and the second guide roller (204), both ends of which are rotatably connected to the two ends of the adjustment frame (101), and the path of the spandex yarn (104) entering the tension adjustment device is: the outer wall of the second adjustment roller (202), the outer wall of the first guide roller (203), the outer wall of the first adjustment roller (201) and the outer wall of the second guide roller (204); A pressure sensor (205) is installed at the rotating shaft of the first guide roller (203) and is used to detect the extrusion force generated when the spandex yarn (104) passes through the first guide roller (203). The tension of the spandex yarn (104) is detected through the value of the pressure sensor (205), and based on the tension, the synchronization component can drive the first adjusting roller (201) and the second adjusting roller (202) to move up and down.

2. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 1, characterized in that: The pressure sensor (205) is arranged at the rotating shaft of the first guide roller (203), and the pressure sensor (205) is fixedly connected to the adjustment frame (101). When the spandex yarn (104) passes through the first guide roller (203), the spandex yarn (104) applies pressure to the first guide roller (203).

3. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 1, characterized in that: When the first adjusting roller (201) and the second adjusting roller (202) are close to each other, they can squeeze the spandex yarn (104) to increase the tension of the spandex yarn (104); when the first adjusting roller (201) and the second adjusting roller (202) are away from each other, the path of the spandex yarn (104) is changed to reduce the tension of the spandex yarn (104).

4. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 1, characterized in that: The synchronization component includes: A sliding plate (207), the sliding plate (207) being respectively mounted on both ends of the first adjusting roller (201) and the second adjusting roller (202), one end of the sliding plate (207) being fixedly connected with a slider (209), an end of the adjusting frame (101) being provided with an adjusting groove (106), an inner wall of the adjusting groove (106) being provided with a slide groove (107), the slider (209) being slidably connected with the slide groove (107), an end of the sliding plate (207) being provided with a rotating hole (208), the ends of the first adjusting roller (201) and the second adjusting roller (202) being fixedly connected with a rotating shaft (206), the rotating shaft (206) being rotatably connected with the rotating hole (208); A first rack (210) is fixed to an adjacent end of the upper and lower sliding plates (207), and the teeth of the two first racks (210) are located on an adjacent side of the two first racks (210); The first gear (211) is installed between the two first racks (210), the first gear (211) is meshed with the two first racks (210), and one end of the first gear (211) is connected to a driving member.

5. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 4, characterized in that: A pay-off drum (103) is arranged at the bottom entry end of the spandex yarn (104), a fixing seat (105) is arranged below the pay-off drum (103), a plurality of cross bars are mounted on the fixing seat (105), the pay-off drum (103) is rotatably mounted on the cross bars, and the pay-off drum (103) can rotate under the pulling of the spandex yarn (104).

6. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 5, characterized in that: Also included is a differential assembly, the differential assembly comprising: A lower pressing block (216), wherein the lower pressing block (216) is arranged on the outer wall of the second adjusting roller (202), a friction block (220) is arranged at one end of the lower pressing block (216) close to the outer wall of the second adjusting roller (202), a movable groove (219) is opened in the middle of the lower pressing block (216), the friction block (220) is slidably connected to the inner wall of the movable groove (219), and a spring (221) is connected between the friction block (220) and the inner wall of the movable groove (219).

7. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 6, characterized in that: The differential assembly further comprises: A second gear (214), the second gear (214) being fixedly connected to an outer end of the first gear (211); A driving frame (213), wherein the driving frame (213) is sleeved on the outside of the second gear (214), one inner wall of the driving frame (213) is connected to a second rack (215), and the second rack (215) is meshed with the second gear (214).

8. A tension adjustment device for a spandex raw yarn conveying device as claimed in claim 7, characterized in that: The driving frame (213) is fixedly connected to the lower pressing block (216) via a connecting rod (217); the inner side of the connecting rod (217) is connected to a limiting block (218); the outer wall of the adjusting frame (101) is provided with a limiting groove matching the limiting block (218); the limiting block (218) is slidably connected to the limiting groove; and the outer wall of the connecting rod (217) is fixedly connected to a fixing frame (222).

9. A method for adjusting the tension of a spandex raw yarn conveying device, using a tension adjusting device for a spandex raw yarn conveying device according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, configuring an adjustment frame (101), a first adjustment roller (201), and a second adjustment roller (202); S2, distributing the first adjusting roller (201) and the second adjusting roller (202) up and down in the middle of the adjusting frame (101); S3, configuring a first guide roller (203) and a second guide roller (204), allowing the spandex yarn (104) to pass through the outer wall of the second adjusting roller (202), the outer wall of the first guide roller (203), the outer wall of the first adjusting roller (201), and the outer wall of the second guide roller (204) at one time; S4, configuring a pressure sensor (205), and installing the sensor (205) at a position where the tension value of the spandex yarn (104) can be detected; S5. Based on the pressure value detected by the pressure sensor (205), a driving member is used to drive the first adjusting roller (201) and the second adjusting roller (202) to move up and down. When the first adjusting roller (201) and the second adjusting roller (202) are close to each other, the tension of the spandex yarn (104) increases. When the first adjusting roller (201) and the second adjusting roller (202) are away from each other, the tension of the spandex yarn (104) decreases.

10. A method for adjusting the tension of a spandex raw yarn conveying device as claimed in claim 9, characterized in that: The first guide roller (203) and the second guide roller (204) are respectively arranged on both sides of the adjustment frame (101) and are used to support the spandex yarn (104).

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