A vibrating yarn spreading mechanism
By designing a vibration yarn spreading mechanism, utilizing the phase difference of the eccentric shafts of adjacent output wheels and the sliding bearing structure, the stability problem of existing yarn spreading mechanisms with fine denier, irregular cross-section, or high twist yarns is solved, achieving uniform yarn separation and stable yarn spreading effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN FURUIKE NEW MATERIALS CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-29
AI Technical Summary
Existing yarn spreading mechanisms have inconsistent spreading effects when handling fine denier, irregular cross-section, or high twist yarns, making it difficult to achieve uniform separation between yarns.
Design a vibrating yarn spreading mechanism. By setting a 180° phase difference between the eccentric shafts of adjacent output wheels, the periodicity and stability of the reverse motion of the vibrating rollers are ensured. Combined with the cooperation structure of the sliding shaft and the sliding bearing, the vibrating rollers are restricted to move only along the axial direction. The vibration amplitude and frequency are adjusted by the threaded connection structure of the hinged shaft.
It achieves uniform and sufficient vibration of the yarn, avoids yarn deviation, improves the stability and adaptability of the yarn spreading effect, and meets the needs of different linear densities and production speeds.
Smart Images
Figure CN224299514U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of yarn production equipment, and in particular to a vibrating yarn spreading mechanism. Background Technology
[0002] In the textile manufacturing and yarn processing industry, yarn, as the basic unit of fabric composition, involves multiple intricate processes in its production and processing. The yarn spreading or setting stage is one of the key processes to ensure efficient subsequent yarn processing and finished product quality. This stage aims to use a yarn spreading mechanism to spatially comb and separate parallel, bundled yarns, creating a stable and uniform spacing between them. This avoids production defects such as yarn breakage, yarn surface damage, or uneven fabric texture caused by yarn tangling and adhesion, providing yarn in a state that meets process standards for subsequent processes such as twisting, doubling, and weaving.
[0003] Currently, the yarn unfolding mechanisms widely used in the industry mainly focus on two principles: airflow-driven and mechanical vibration-driven.
[0004] Airflow-driven yarn spreading mechanisms inject directional airflow into the yarn bundle using a high-pressure air source. The combined force of the airflow impact and the friction on the yarn surface drives the yarn to move relative to each other along the airflow direction, achieving yarn separation. However, these mechanisms are limited by factors such as airflow uniformity, differences in yarn density, and the dynamic adaptability of airflow parameters (pressure, velocity). When handling fine denier, irregularly shaped, or high-twist yarns, they are prone to problems such as localized yarn shifting and insufficient airflow penetration, resulting in significant fluctuations in yarn separation and difficulty in achieving stable yarn spreading.
[0005] Mechanical vibration-type yarn spreading mechanisms use periodic up-and-down vibrations to separate the yarn through the impact force generated by physical contact and the elastic deformation of the yarn. However, because the vibration direction differs from the yarn spreading direction, this type of mechanism also suffers from insufficient stability in the yarn spreading effect.
[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0007] (a) Technical problems to be solved
[0008] This application provides a vibration yarn spreading mechanism that can solve the problem of how to improve the stability of yarn spreading effect in the prior art.
[0009] (II) Technical Solution
[0010] To solve the above-mentioned technical problems, this application provides the following technical solution:
[0011] A vibrating yarn spreading mechanism is provided, the vibrating yarn spreading mechanism comprising:
[0012] frame;
[0013] At least two parallel vibrating rollers are provided, and each vibrating roller is provided with a set of sliding shafts and sliding bearing seats at both ends. The sliding bearing seats are fixedly provided on the frame and have sliding bearings inside them. The sliding shafts are slidably connected to the sliding bearings of the same set of sliding bearing seats so that the vibrating rollers can move axially.
[0014] A drive mechanism includes a motor, at least two output wheels, and a hinge shaft. The motor is fixedly mounted on the frame and is connected to each of the output wheels via a transmission. Each output wheel is rotatably mounted on the frame and is provided with an eccentric shaft. The hinge shaft includes a first shaft section and a second shaft section. The end of the first shaft section is provided with an axially extending threaded hole, and the second shaft section is provided with an external thread and is connected to the threaded hole.
[0015] The output wheel, hinge shaft, and vibrating roller shaft are arranged in a group. The first section of the hinge shaft is hinged to the sliding shaft of the vibrating roller in the same group, and its second section is hinged to the eccentric shaft of the output wheel in the same group. The eccentric shafts of two adjacent output wheels are 180° out of phase, so that the two adjacent vibrating rollers move in opposite directions when the motor is working.
[0016] In some embodiments, the motor is provided with an output shaft, and an output wheel is provided on the output shaft, with adjacent output wheels connected by a belt.
[0017] In some embodiments, the end of the first shaft segment facing away from the external thread is provided with a hinge hole, and is movably sleeved on the eccentric shaft through the hinge hole. The end of the eccentric shaft is provided with a limit part to prevent the first shaft segment from disengaging from the eccentric shaft.
[0018] In some embodiments, the outer side of the sliding shaft is provided with a threaded groove, and the sliding bearing seat is provided with a guide pin, one end of which extends into the threaded groove so that the sliding shaft rotates synchronously when moving axially.
[0019] In some embodiments, the guide pin is a threaded pin, the sliding bearing seat has a pin hole, the inner side of the pin hole is provided with an internal thread, and the guide pin is screwed onto the inner side of the internal thread.
[0020] In some embodiments, the direction of synchronous rotation of the sliding shaft during axial movement is the same as or opposite to the yarn feeding direction.
[0021] (III) Beneficial Effects
[0022] Compared with the prior art, the beneficial effects of the technical solution provided in this application include at least the following:
[0023] The vibratory yarn spreading mechanism of this application achieves stable control of the yarn spreading effect through the following mechanism: the eccentric shafts of adjacent output wheels are positioned differently and have a fixed phase difference of 180°, ensuring the periodicity and stability of the reverse movement of adjacent vibrating rollers, so that the yarn is subjected to uniform and sufficient vibration. Simultaneously, the cooperative structure of the sliding shaft and sliding bearing restricts the vibrating rollers to move only axially, avoiding yarn deviation caused by radial sway, making the yarn spreading action more stable. Furthermore, the threaded connection structure of the hinged shaft allows for adjustment of the length of the second shaft section by rotation, thereby fine-tuning the vibration amplitude. The motor speed control can adjust the vibration frequency to adapt to the yarn spreading requirements of different linear densities and production speeds, thus improving the yarn spreading effect. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a front view of the vibration yarn spreading mechanism in the embodiments of this application;
[0026] Figure 2 This is a top view of the vibration yarn spreading mechanism in the embodiments of this application;
[0027] Figure 3 yes Figure 2 A schematic diagram of the area indicated by the dashed line.
[0028] Figure 4 This is a schematic diagram of the sliding shaft and the sliding bearing seat cooperating through a threaded groove and a guide pin in an embodiment of this application.
[0029] Figure label:
[0030] Rack 1;
[0031] Vibrating roller 2, sliding shaft 21, sliding bearing seat 22, threaded groove 211, rotary joint 212, sliding bearing 221, guide pin 222, pin hole 223;
[0032] Drive mechanism 3, motor 31, output wheel 32, hinge shaft 33, belt 34, output shaft 311, eccentric shaft 321, limiting part 323, first shaft section 331, second shaft section 332, threaded hole 333, external thread 334.
[0033] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0034] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.
[0035] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0036] Existing vibratory yarn spreading mechanisms fall into two categories: airflow-driven and mechanical vibration-driven. Airflow-driven mechanisms inject directional airflow into the yarn bundle using a high-pressure air source. The combined force of the airflow impact and yarn surface friction drives the yarn to move relative to the airflow direction, achieving yarn separation. However, this type of mechanism is limited by factors such as airflow uniformity, differences in yarn density, and the dynamic adaptability of airflow parameters (pressure, velocity). When handling fine denier, irregularly shaped, or high-twist yarns, it is prone to problems such as localized yarn shifting and insufficient airflow penetration, resulting in significant fluctuations in yarn separation and difficulty in achieving stable yarn spreading. Mechanical vibration-driven yarn spreading mechanisms use periodic up-and-down vibration, achieving yarn separation through the impact force generated by physical contact and the elastic deformation of the yarn. This type of mechanism also suffers from insufficient stability in yarn spreading effect because the vibration direction differs from the yarn spreading direction.
[0037] To address the aforementioned technical problems, this embodiment provides a vibration-driven yarn-spreading mechanism. (See also...) Figures 1 to 4 As shown, Figure 1 This is a front view of the vibration yarn spreading mechanism in the embodiments of this application. Figure 2 This is a top view of the vibration yarn spreading mechanism in the embodiments of this application. Figure 3 yes Figure 2 A schematic diagram of the area indicated by the dashed line. Figure 4 This is a schematic diagram of the sliding shaft and the sliding bearing seat cooperating through a threaded groove and a guide pin in an embodiment of this application.
[0038] The vibrating yarn spreading mechanism includes: a frame 1, at least two parallel vibrating rollers 2, and a drive mechanism 3. Each vibrating roller 2 has a set of sliding shafts 21 and sliding bearing seats 22 at both ends. The sliding bearing seats 22 are fixedly mounted on the frame 1 and have sliding bearings 221 inside them. The sliding shafts 21 are slidably connected to the sliding bearings 221 of the same set of sliding bearing seats 22, so that the vibrating roller 2 can move axially.
[0039] The drive mechanism 3 includes a motor 31, at least two output wheels 32, and a hinge shaft 33. The motor 31 is fixedly mounted on the frame 1 and is connected to each of the output wheels 32 in a transmission manner. Each of the output wheels 32 is rotatably mounted on the frame 1 and is provided with an eccentric shaft 321. The hinge shaft 33 includes a first shaft section 331 and a second shaft section 332. The end of the first shaft section 331 is provided with an axially extending threaded hole 333. The second shaft section 332 is provided with an external thread 334 and is connected to the threaded hole 333.
[0040] The output wheel 32, hinge shaft 33, and vibrating roller 2 are arranged in groups, with at least two groups, and three groups in the figure. The second shaft segment 332 of the hinge shaft 33 is hinged to the eccentric shaft 321 of the output wheel 32 in the same group, and its first shaft segment 331 is hinged to the sliding shaft 21 of the vibrating roller 2 in the same group. The eccentric shafts 321 of two adjacent output wheels 32 are 180° out of phase, so that the two adjacent vibrating rollers 2 move in opposite directions when the motor 31 is working.
[0041] When the vibrating yarn unfolding mechanism of the above technical solution is working, the motor 31 drives each output wheel 32 to rotate synchronously through the transmission belt / gear. However, the eccentric shafts 321 of each output wheel 32 are arranged with a phase difference, that is, the phase difference of the eccentric shafts 321 of adjacent output wheels 32 is 180°, forming a periodic displacement phase difference. The hinge shaft 33, as a motion transmission component, has a threaded connection structure: a first shaft section 331, a threaded hole 333, a second shaft section 332, and an external thread 334. It allows for fine length adjustment, can compensate for assembly errors, and adjust the vibration amplitude. When the motor 31 starts, the eccentric shafts 321 of each output wheel 32 convert the rotational motion into the axial reciprocating motion of the vibrating roller 2 through the hinge shaft 33. Due to the phase difference of the eccentric shafts 321 of adjacent output wheels 32, the axial movement directions of adjacent vibrating rollers 2 are periodically opposite (e.g., when one moves to the left, the other moves to the right), forming a compound force of alternating "push-pull". As the yarn passes through, the opposing axial movements of adjacent vibrating rollers 2 exert a reverse force on the yarn, breaking the adhesion and electrostatic attraction between the yarns and achieving yarn unwinding. The mating structure between the sliding bearing seat 22 and the sliding shaft 21 allows the vibrating roller 2 to maintain vertical stability while undergoing axial displacement, preventing secondary entanglement of the yarn due to roller swaying.
[0042] In some embodiments, the motor 31 is provided with an output shaft 311, on which an output wheel 32 is mounted, and adjacent output wheels 32 are connected by a belt 34. For example, the motor 31 drives a single active output wheel 32 to rotate via the output shaft 311, and adjacent driven output wheels 32 form a synchronous transmission structure with the active output wheel 32 via an annular belt 34. The belt 34 is a toothed belt or a synchronous belt, and transmits power through the meshing of the belt teeth with the grooves 322 on the outer edge of the output wheel 32, preventing slippage. With this configuration, one motor 31 can simultaneously drive multiple output wheels 32 to rotate, and can improve the synchronicity of the movement of each group of vibrating rollers 2.
[0043] In some embodiments, the first shaft segment 331 has a hinge hole at the end opposite to the external thread 334, and is movably sleeved on the eccentric shaft 321 through the hinge hole. A limiting portion 323 is provided on the eccentric shaft 321 to prevent the first shaft segment 331 from disengaging from the eccentric shaft 321. For example, the eccentric shaft 321 of the output wheel 32 is designed as a detachable structure, fixed to the side of the output wheel 32 by a set screw, facilitating adjustment of the eccentricity to adapt to different yarn materials. It is understood that the second shaft segment 332 has a hinge hole at the end opposite to the threaded hole 333, and is hinged to the end of the sliding shaft 21 by a bolt.
[0044] In some embodiments, the outer side of the sliding shaft 21 is provided with a threaded groove 211, and the sliding bearing seat 22 is provided with a guide pin 222. One end of the guide pin 222 extends into the threaded groove 211, so that the sliding shaft 21 rotates synchronously when moving axially. A rotary joint 212 may be provided at the end of the sliding shaft 21, which is hinged to the first shaft segment 331 of the hinge shaft 33, allowing it to rotate relative to the hinge shaft 33. When the sliding shaft 21 vibrates axially, the helical engagement of the threaded groove 211 and the guide pin 222 forces the sliding shaft 21 to rotate synchronously, and the direction of rotation is controlled by the helical design of the threaded groove 211. The rotational movement of the sliding shaft 21 can disperse the contact stress between the yarn and the roller, avoiding local indentation, and is especially suitable for unwinding ultra-fine denier fibers (e.g., ≤0.5 dtex). The rotational movement causes the yarn to vibrate circumferentially while separating axially, disrupting the electrostatic adsorption between the yarns and improving the consistency of the separation effect. At the same time, the rotation of the sliding shaft 21 can shake off the fiber debris attached to the surface, reducing yarn snagging or tangling caused by dust accumulation.
[0045] In some embodiments, the guide pin 222 is a threaded pin, and the sliding bearing seat 22 has a pin hole 223 with an internal thread inside the pin hole 223. The guide pin 222 is screwed onto the inner side of the internal thread. For example, the guide pin 222 has an external thread structure, and a matching internal thread is machined into the pin hole 223 of the sliding bearing seat 22. The head of the guide pin 222 has a hexagonal wrench hole for easy tool loading and unloading.
[0046] In some embodiments, the sliding shaft 21 rotates synchronously in the same or opposite direction as the yarn feeding direction during axial movement. The threaded groove 211 of the sliding shaft 21 is designed with two rotation modes: First, a co-rotation mode: the threaded groove 211 is right-handed, the yarn feeding direction is from left to right, and the sliding shaft 21 rotates in the same direction as the yarn feeding direction. The centrifugal force generated by the rotation throws the yarn away from the edge of the roller. Second, a reverse rotation mode: the threaded groove 211 is left-handed, and the sliding shaft 21 rotates in the opposite direction to the yarn feeding direction. The shear force generated by the rotation separates the electrostatic adsorption points between the yarns.
[0047] The vibratory yarn spreading mechanism of this application achieves stable control of the yarn spreading effect through the following mechanism: the phase difference between the eccentric shafts 321 of adjacent output wheels 32 is 180°, i.e., a fixed phase difference exists, ensuring the periodicity and stability of the reverse movement of adjacent vibrating rollers 2, so that the yarn is subjected to uniform and sufficient vibration. At the same time, the cooperation structure between the sliding shaft 21 and the sliding bearing 221 restricts the vibrating rollers 2 to move only along the axial direction, avoiding yarn deviation caused by radial sway, making the yarn spreading action more stable. Furthermore, the threaded connection structure of the hinge shaft 33 allows for adjustment of the length of the second shaft segment 332 by rotation, thereby fine-tuning the vibration amplitude. The speed control of the motor 31 can adjust the vibration frequency to adapt to the yarn spreading requirements of different linear densities and production speeds, thereby improving the yarn spreading effect.
[0048] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0050] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A vibrating yarn spreading mechanism, characterized in that, The vibrating yarn spreading mechanism includes: frame; At least two parallel vibrating rollers are provided, and each vibrating roller is provided with a set of sliding shafts and sliding bearing seats at both ends. The sliding bearing seats are fixedly provided on the frame and have sliding bearings inside them. The sliding shafts are slidably connected to the sliding bearings of the same set of sliding bearing seats so that the vibrating rollers can move axially. A drive mechanism includes a motor, at least two output wheels, and a hinge shaft. The motor is fixedly mounted on the frame and is connected to each of the output wheels via a transmission. Each output wheel is rotatably mounted on the frame and is provided with an eccentric shaft. The hinge shaft includes a first shaft section and a second shaft section. The end of the first shaft section is provided with an axially extending threaded hole, and the second shaft section is provided with an external thread and is connected to the threaded hole. The output wheel, hinge shaft, and vibrating roller shaft are arranged in a group. The first section of the hinge shaft is hinged to the sliding shaft of the vibrating roller in the same group, and its second section is hinged to the eccentric shaft of the output wheel in the same group. The eccentric shafts of two adjacent output wheels are 180° out of phase, so that the two adjacent vibrating rollers move in opposite directions when the motor is working.
2. The vibration yarn spreading mechanism according to claim 1, characterized in that, The motor is provided with an output shaft, and an output wheel is provided on the output shaft. Adjacent output wheels are connected by a belt.
3. The vibration yarn spreading mechanism according to claim 1, characterized in that, The first shaft segment has a hinge hole at one end away from the external thread, and can be movably sleeved on the eccentric shaft through the hinge hole. The end of the eccentric shaft has a limit part to prevent the first shaft segment from disengaging from the eccentric shaft.
4. The vibration yarn spreading mechanism according to claim 1, characterized in that, The sliding shaft has a threaded groove on its outer side, and the sliding bearing seat has a guide pin. One end of the guide pin extends into the threaded groove so that the sliding shaft rotates synchronously when it moves axially.
5. The vibrating yarn spreading mechanism according to claim 4, characterized in that, The guide pin is a threaded pin, and the sliding bearing seat has a pin hole with an internal thread inside the pin hole. The guide pin is screwed onto the inside of the internal thread.
6. The vibrating yarn spreading mechanism according to claim 4, characterized in that, The sliding shaft rotates synchronously in the same or opposite direction as the yarn conveying direction when it moves axially.