Multi-component fiber blended yarn tension self-adaptive control mechanism

Abstract

The utility model discloses a multi -component fiber blended yarn tension self -adaptation control mechanism relates to fiber blended yarn processing technical field, and the utility model discloses a box, the middle part of box is equipped with the tension adjusting mechanism, is used for adjusting the tension of the fiber blended yarn of conveying, and the tension adjusting mechanism includes: the self -adaptation subassembly includes the traction roller rotation installation in the middle part of the both ends of box, when the yarn tension instantaneous small -amplitude fluctuation of the application, the adjusting spring can pass through its elastic deformation, drives the sliding block to slide, drives the adjusting roller to produce the self -adaptation displacement to yarn tension carries out the quick buffering and compensation for, maintains instantaneous dynamic balance, and for the tension deviation of the spring adjusting range, the feedback of tension sensor is according to again to the PLC controller, control stepper motor drive screw rotation, drive the position adjustment of moving block, realize the regression of tension set value, effectively overcomeed the shortcoming that traditional only relied on the motor rigidity adjusting response lag, cannot absorb high -frequency disturbance.

Description

Technical Field

[0001] This utility model relates to the field of fiber blended yarn processing technology, specifically to a tension adaptive control mechanism for multi-component fiber blended yarn. Background Technology

[0002] In the modern textile industry, multi-component fiber blended yarn has become one of the mainstream products because it can combine the excellent properties of different fibers and meet the market's demand for functional and differentiated textiles. In the production process of blended yarn, the tension uniformity and stability of each component yarn are the main factors that determine the final yarn quality (such as yarn evenness, strength and elongation, and consistency of blending ratio). Since the components of blended yarn (such as cotton, polyester, wool, spandex, etc.) have significant differences in physical properties such as elastic modulus, coefficient of friction, and elongation, they are prone to problems such as uneven tension and frequent fluctuations in the spinning process.

[0003] Referring to the patent document: Patent Publication No. CN214879214U, Patent Publication Date 2021-11-26, a tension control mechanism for DTY yarn processing is disclosed, including: a processing box, a door provided on one outer surface of the processing box, a processing table provided inside the processing box, and a winding mechanism provided on the processing table. This tension control mechanism for DTY yarn processing, through an adjustable mechanism, can adjust the DTY yarn. Through a tension roller and a detection roller, a screw drive device can quickly move the tension roller to a suitable position. A tension sensor, through the detection roller, can quickly detect the tension on the DTY yarn, thus eliminating the need for manual adjustment by personnel. This improves the adjustment effect of the device, reduces the labor intensity of workers, and makes it convenient for users. The entire device has a simple structure, is easy to operate, and increases the practicality of the entire tension control mechanism.

[0004] Although the aforementioned patent achieves tension adjustment of fiber blended yarn by setting a screw drive to adjust the position of the tensioning roller, its adjustment mainly relies on the rigid transmission of the screw. Although it can achieve position adjustment, it has a lag in response to high-frequency, small-amplitude instantaneous tension fluctuations caused by uneven fibers and mechanical vibrations during the spinning process. It cannot achieve rapid buffering and compensation, which easily leads to insufficient tension control accuracy, resulting in "over-adjustment" or "under-adjustment". Moreover, in multi-component blended scenarios, due to differences in tension and physical properties, each strand of yarn is prone to lateral deviation, causing them to entangle with each other or scrape against equipment parts.

[0005] Therefore, this utility model provides a tension adaptive control mechanism for multi-component fiber blended yarn. Utility Model Content

[0006] To address the shortcomings of existing rigid adjustment methods, which cannot effectively absorb high-frequency instantaneous fluctuations and lack anti-deviation functions, resulting in insufficient tension control accuracy and easy yarn entanglement and wear, the purpose of this invention is to provide a tension adaptive control mechanism for multi-component fiber blended yarns.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-component fiber blended yarn tension adaptive control mechanism, comprising a housing, wherein a tension adjustment mechanism is provided in the middle of the housing for adjusting the tension of the conveyed fiber blended yarn, the tension adjustment mechanism comprising: The adaptive component includes traction rollers rotatably mounted at the middle of both ends of the housing, two symmetrically distributed moving blocks on one side of the housing, a slider on one side of each of the two moving blocks, an adjusting spring on both sides of each of the two sliders, the top of each of the two adjusting springs being mounted on the upper side of the moving blocks, an adjusting roller in the middle of the opposite side of the two sliders, and two symmetrically distributed detection rollers on the other side of the upper part of the housing. The anti-deviation component is located in the middle of the adjusting roller and is used to correct deviations during the conveying of fiber blended yarn.

[0008] Preferably, the anti-deviation assembly includes multiple bearings rotatably mounted in the middle of the adjusting roller, each bearing having an anti-deviation roller fixedly mounted in the middle, and the multiple anti-deviation rollers being inclined along the Y-axis.

[0009] Preferably, a slide rail is fixedly installed on the middle of one side of each of the two movable blocks, and one side of each of the two sliders is slidably installed on the middle side of the slide rail.

[0010] Preferably, the upper part of the box has two symmetrically distributed inlets and outlets, which correspond to the inlet and outlet ends of the fiber blended yarn, respectively.

[0011] Preferably, two symmetrically distributed screws are rotatably mounted in the middle of the housing, and two moving blocks are threadedly mounted in the middle of the screws.

[0012] Preferably, a plurality of equally spaced outer shells are fixedly installed in the middle of the plurality of adjusting rollers, a servo motor is fixedly installed in the middle of the plurality of outer shells, and one end of the plurality of bearings is fixedly installed in the drive end of the servo motor.

[0013] Beneficial effects This invention provides a tension adaptive control mechanism for multi-component fiber blended yarns. Compared with the prior art, it has the following advantages: 1. When the yarn tension fluctuates slightly in an instant, the adjusting spring can drive the slider to slide slightly along the slide rail through its elastic deformation (compression or stretching), thereby causing the adjusting roller to generate adaptive displacement. This allows for rapid buffering and compensation of the yarn tension, maintaining instantaneous dynamic balance. For tension deviations exceeding the spring's adjustment range, the PLC controller, based on feedback from the tension sensor, controls the stepper motor to drive the screw to rotate, causing the moving block to adjust its position and return to the set tension value. This effectively overcomes the shortcomings of traditional rigid motor adjustment, which suffers from lag in response and inability to absorb high-frequency disturbances. It improves the response speed and stability of the tension control system, making it particularly suitable for complex working conditions where the physical properties of multi-component fibers differ greatly and high-frequency tension fluctuations are easily generated.

[0014] 2. In the yarn conveying and tension adjustment process, the photoelectric correction sensor installed at the inlet and outlet monitors the lateral position of each yarn in real time. Once a yarn deviation is detected, the corresponding servo motor drives the anti-deviation roller to rotate around its axis, changing its tilt angle in the Y-axis direction. The tilted roller, through the guiding friction generated by contact with the yarn, applies a corrective force to the deviated yarn, effectively overcoming the yarn deviation problem caused by uneven tension of the fibers, differences in friction coefficients, or mechanical vibration. This prevents the yarn from tangling, scraping and wearing with the mechanism, and secondary tension unevenness caused by yarn deviation. Attached Figure Description

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

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a schematic diagram of the adjusting roller structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the adaptive component structure of this utility model.

[0019] Figure 5 This is a schematic diagram of the anti-deviation component structure of this utility model.

[0020] In the diagram: 1. Housing; 2. Tensioning adjustment mechanism; 21. Adaptive component; 211. Traction roller; 212. Detection roller; 213. Inlet / outlet; 214. Moving block; 2141. Screw; 215. Slider; 216. Slide rail; 217. Adjusting spring; 218. Adjusting roller; 22. Anti-deviation component; 221. Anti-deviation roller; 222. Bearing; 223. Outer casing; 224. Servo motor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a tension adaptive control mechanism for multi-component fiber blended yarn, including a housing 1, with a tension adjustment mechanism 2 located in the middle of the housing 1, used to adjust the tension of the conveyed fiber blended yarn. The tension adjustment mechanism 2 includes: The adaptive component 21 includes traction rollers 211 rotatably mounted at the middle of both ends of the housing 1. The traction rollers 211 are made of 45# steel and precision-machined with a polyurethane elastic layer on the surface. The two traction rollers 211 are respectively positioned on one side of the inlet / outlet 213, enabling them to guide the fiber blended yarn in and out. Two symmetrically distributed moving blocks 214 are provided on one side of the housing 1. Each of the two moving blocks 214 has a slider 215 on one side. Adjusting springs 217 are installed on both sides of each slider 215. The adjusting springs 217 are made of 65Mn spring steel and enable adaptive adjustment of the fiber blended yarn tension. Each adjusting spring 217 has a top end... On the upper side of the moving block 214, both ends of the adjusting spring 217 are respectively mounted on the moving block 214 and the slider 215 via lugs, so that the adjusting spring 217 can be easily replaced. An adjusting roller 218 is provided in the middle of the opposite side of the two sliders 215. On the other side of the upper part of the housing 1, two symmetrically distributed detection rollers 212 are provided. The detection rollers 212 have the same structure as the traction rollers 211. Tension sensors (model LCX-102) are installed on the outer side of the bearing seats at both ends. The tension sensors are fixed to the bearing seats by M4 hexagonal bolts. Their signal output lines are connected to the input terminal of the PLC controller for real-time acquisition of yarn tension data. The anti-deviation component 22 is located in the middle of the adjusting roller 218 and is used to correct deviations during the conveying of the fiber blended yarn.

[0023] The anti-deviation assembly 22 includes multiple bearings 222 that are rotatably installed in the middle of the adjusting roller 218 and are distributed at equal intervals. Anti-deviation rollers 221 are fixedly installed in the middle of each of the multiple bearings 222. The multiple anti-deviation rollers 221 are inclined along the Y-axis. When the fiber blended yarn is pulled, each fiber blended yarn passes through the middle of each anti-deviation roller 221, so that the position of the fiber blended yarn is adjusted by rotating the anti-deviation roller 221.

[0024] Each of the two movable blocks 214 has a slide rail 216 fixedly installed on the middle of one side, and each of the two sliders 215 has one side slidably installed on the middle side of the slide rail 216. The slide rail 216 is a linear slide rail (model HGR15) which can guide and limit the slider 215 to prevent the slider 215 from slipping off.

[0025] The upper part of the housing 1 has two symmetrically distributed inlets and outlets 213. The two inlets and outlets 213 correspond to the inlet and outlet ends of the fiber blended yarn, respectively. The inlets and outlets 213 are rectangular in structure with rounded edges to avoid scratching the yarn. Photoelectric correction sensors (model E3Z-LS63) are installed at the inlet end and inside the inlets and outlets 213 to detect the yarn offset.

[0026] Two symmetrically distributed screws 2141 are rotatably mounted in the middle of the housing 1. Two moving blocks 214 are threaded onto the middle of the screws 2141. The screws 2141 are trapezoidal screws, and a stepper motor (model 42HS40-1704A) is mounted on one end of the screws 2141 via a coupling. The PLC controls the stepper motor to rotate forward and backward according to the data collected by the tension sensor, thereby driving the moving blocks 214 to move along the screws 2141 to achieve tension adjustment.

[0027] Multiple equal-spaced outer casings 223 are fixedly installed in the middle of multiple adjusting rollers 218. A servo motor 224 is fixedly installed in the middle of multiple outer casings 223. The servo motor 224 is a small DC servo motor (model MS1H1-10B30CB-L012M). One end of multiple bearings 222 is fixedly installed on the drive end of the servo motor 224. The servo motor 224 adjusts the tilt angle of the anti-deviation roller 221 according to the photoelectric correction sensor signal received by the PLC controller to achieve dynamic deviation correction.

[0028] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0029] During operation, the multi-component fiber blended yarn enters from the inlet end of the upper inlet 213 of the housing 1. The traction roller 211 at the inlet end provides traction power to the yarn through its own rotation. After being guided by the inlet traction roller 211, the yarn passes through the detection roller 212 and the anti-deviation roller 221 in sequence, and is finally pulled out from the outlet side inlet 213 by the outlet traction roller 211, completing the guidance of the entire conveying path. During conveying, the tension sensors installed on the outer side of the bearing seats at both ends of the detection roller 212 keep in close contact with the yarn. When the yarn passes through the detection roller 212, the tension sensors sense the tension of the yarn in real time and transmit it to the input end of the PLC controller. The actual tension value is compared and analyzed with the preset threshold in real time to determine whether there is a tension deviation (too loose or too tight). When the yarn tension fluctuates slightly, the adjusting spring 217 plays a preliminary adaptive adjustment role: if the yarn tension increases, it will generate an upward pulling force on the adjusting roller 218, causing the slider 215 to slide upward along the slide rail 216. At this time, the adjusting spring 217 is compressed, and the spring itself generates a reverse buffering force through elastic deformation to offset part of the tension increase and prevent the yarn from breaking due to excessive instantaneous tension; if the yarn tension decreases, the adjusting spring 217 restores its elastic deformation, pushing the slider 215 to slide downward, and the adjusting roller 218 applies appropriate pressure to the yarn to supplement the insufficient tension and achieve a preliminary dynamic balance of tension. When the tension deviation detected by the tension sensor exceeds the adaptive adjustment range, the PLC controller starts the stepper motor adjustment. If the actual tension is greater than the preset threshold (yarn too tight), the PLC controls the stepper motor to rotate forward, driving the screw 2141 to rotate through the coupling. Since the moving block 214 is threadedly connected to the screw 2141, the rotation of the screw 2141 is converted into the moving block 214 moving upward along the axis of the screw 2141, driving the adjusting roller 218 away from the yarn conveying path, reducing the amount of pressure of the adjusting roller 218 on the yarn, thereby reducing the yarn tension. If the actual tension is less than the preset threshold (yarn too loose), the PLC controls the stepper motor to reverse, the moving block 214 moves downward along the axis of the screw 2141, and the adjusting roller 218 moves closer to the yarn conveying path, increasing the amount of pressure on the yarn, replenishing the yarn tension, until the actual tension returns to the preset threshold range, achieving precise adaptive tension control. Furthermore, while the yarn is being conveyed and tension is being adjusted, the photoelectric correction sensor installed inside the inlet / outlet 213 at the inlet end detects the yarn's conveying position in real time. When the yarn deviates due to factors such as tension fluctuations or differences in fiber characteristics (the deviation exceeds the preset allowable range), the PLC controller outputs corresponding control commands to the servo motor 224 inside the outer casing 223 in the middle of the adjusting roller 218 according to the direction (left or right deviation) and the magnitude of the deviation signal. The servo motor 224 drives the bearing 222 and the anti-deviation roller 221 to rotate, adjusting the tilt angle of the anti-deviation roller 221 along the Y-axis. Since each fiber blended yarn passes through the middle of the corresponding anti-deviation roller 221, the anti-deviation roller 221 after the tilt angle is adjusted generates a guiding force on the deviated yarn through the friction between it and the yarn, gradually guiding the yarn back to the preset conveying path, realizing dynamic anti-deviation correction, and avoiding problems such as tangling, scratching, or uneven tension caused by yarn deviation.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tension adaptive control mechanism for multi-component fiber blended yarn, comprising a housing (1), characterized in that: The box (1) is provided with a tension adjustment mechanism (2) in the middle, which is used to adjust the tension of the conveyed fiber blended yarn. The tension adjustment mechanism (2) includes: The adaptive component (21) includes a traction roller (211) rotatably mounted at the middle of both ends of the housing (1). Two symmetrically distributed moving blocks (214) are provided on one side of the housing (1). A slider (215) is provided on one side of each of the two moving blocks (214). An adjusting spring (217) is installed on both sides of each of the two sliders (215). The top of each of the two adjusting springs (217) is installed on the upper side of the moving block (214). An adjusting roller (218) is provided at the middle of the opposite side of the two sliders (215). Two symmetrically distributed detection rollers (212) are provided on the other side of the upper part of the housing (1). The anti-deviation component (22) is located in the middle of the adjusting roller (218) and is used to correct deviations during the conveying of the fiber blended yarn.

2. The tension adaptive control mechanism for multi-component fiber blended yarn according to claim 1, characterized in that: The anti-deviation assembly (22) includes multiple bearings (222) rotatably installed in the middle of the adjusting roller (218) at equal intervals. Anti-deviation rollers (221) are fixedly installed in the middle of the multiple bearings (222), and the multiple anti-deviation rollers (221) are inclined along the Y-axis.

3. The tension adaptive control mechanism for multi-component fiber blended yarn according to claim 1, characterized in that: Each of the two movable blocks (214) has a slide rail (216) fixedly installed on the middle of one side, and each of the two sliders (215) has one side slidably installed on the middle side of the slide rail (216).

4. The tension adaptive control mechanism for multi-component fiber blended yarn according to claim 1, characterized in that: The upper part of the box (1) has two symmetrically distributed inlets and outlets (213), which correspond to the inlet end and outlet end of the fiber blended yarn, respectively.

5. The tension adaptive control mechanism for multi-component fiber blended yarn according to claim 1, characterized in that: Two symmetrically distributed screws (2141) are rotatably installed in the middle of the housing (1), and two moving blocks (214) are threadedly installed in the middle of the screws (2141).

6. The tension adaptive control mechanism for multi-component fiber blended yarn according to claim 2, characterized in that: Multiple equal-spaced outer shells (223) are fixedly installed in the middle of the multiple adjusting rollers (218), and servo motors (224) are fixedly installed in the middle of the multiple outer shells (223). One end of multiple bearings (222) is fixedly installed at the drive end of the servo motors (224).

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