A yarn guide mechanism and a weft knitting circular knitting machine

Abstract

A yarn guiding mechanism includes a first yarn guiding arm with one end and a second yarn guiding arm with one end connected to a main yarn guiding arm along a first direction; the other end of the first yarn guiding arm extends away from the first direction and has a guide portion with a first yarn guiding hole; the other end of the second yarn guiding arm is connected to a yarn guiding wheel; the other end of the main yarn guiding arm has a second yarn guiding hole, the axis of which is parallel to the first direction; the first yarn guiding hole, the second yarn guiding hole, and the yarn guiding wheel are arranged sequentially along the first direction; the plane perpendicular to the axis of the first yarn guiding hole and the plane perpendicular to the axis of the second yarn guiding hole are spatially intersected; the first yarn guiding hole, the second yarn guiding hole, and the yarn guiding wheel are arranged sequentially along a second direction; the first and second directions are intersected; the above technical solution separates the movement trajectories of each yarn, avoiding problems such as yarn position deviation and entanglement caused by excessively close yarn feeding angles, and ensuring that each yarn can be hooked by the knitting needle strictly according to the predetermined spatial position.

Description

Technical Field

[0001] This application relates to the field of textile machinery, specifically to a yarn guiding mechanism and a weft knitting circular knitting machine. Background Technology

[0002] Currently, most mainstream covert fabric production uses double-yarn feeding, where one face yarn and one base yarn are fed into the weaving area simultaneously. Since only two yarns are involved, the relative positions of the two yarns can be easily controlled through a relatively simple yarn guiding mechanism design and angle adjustment, ensuring that the face yarn stably covers the base yarn, resulting in a stable weaving process and uniform fabric quality.

[0003] However, as market demands for both functionality and aesthetics in fabrics continue to rise, double-yarn designs are gradually becoming insufficient. The industry has begun exploring the use of three or more yarns (e.g., base yarn, middle yarn, and face yarn) for covert weaving to achieve richer color gradations, more complex textures, or to add more functionality (such as using antibacterial yarn as an interlayer). When more than two yarns are fed simultaneously, during the yarn feeding stage in the loop-forming phase, the yarns must be hooked by the needles in strictly predetermined spatial positions (e.g., the base yarn is positioned near the needle hook; the face yarn is near the needle bar; and the middle yarn is between the base and face yarns). Existing yarn guiding mechanisms typically provide an independent yarn guide for each yarn, but the spatial layout of these guides is severely constrained by the limited space around the loop-forming mechanism. To guide multiple yarns to the same weaving point, the exit positions (i.e., feeding points) of multiple yarn guides are often forced to be very close together. Furthermore, during high-speed knitting, due to fluctuations in yarn tension, airflow, and the movement of the knitting needles, the middle yarn and the base yarn, which are physically very close, are prone to relative positional shifts or entanglement. The middle yarn may encroach on the path of the base yarn, or the base yarn may rise to the position of the middle yarn. This "disordered yarn layering" directly disrupts the intended covering structure, resulting in uneven color and disordered texture on the woven fabric, severely affecting the yield and commercial value of the fabric. Utility Model Content

[0004] In view of the above problems, this application provides a yarn guiding mechanism to solve the above problems.

[0005] To achieve the above objectives, the inventor provides a yarn guiding mechanism, comprising a main yarn guiding arm, a first secondary yarn guiding arm, and a second secondary yarn guiding arm; one end of the first secondary yarn guiding arm and one end of the second secondary yarn guiding arm are connected to the main yarn guiding arm along a first direction; the other end of the first secondary yarn guiding arm extends a guide portion away from the first direction, and the guide portion is provided with a first yarn guiding hole; the other end of the second secondary yarn guiding arm is connected to a yarn guiding wheel; the other end of the main yarn guiding arm is provided with a second yarn guiding hole, the axis of the second yarn guiding hole being parallel to the first direction; the first yarn guiding hole, the second yarn guiding hole, and the yarn guiding wheel are arranged sequentially along the first direction; the plane perpendicular to the axis of the first yarn guiding hole and the plane perpendicular to the axis of the second yarn guiding hole are spatially intersected; the first yarn guiding hole, the second yarn guiding hole, and the yarn guiding wheel are arranged sequentially along a second direction; the first direction and the second direction are intersected.

[0006] Furthermore, the yarn guide groove of the yarn guide wheel is located above the axis of the first yarn guide hole and the axis of the second yarn guide hole, and the axis of the first yarn guide hole is located above the axis of the second yarn guide hole.

[0007] Furthermore, the distance between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the height direction is 6mm-12mm.

[0008] Furthermore, the distance between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the second direction is 8mm-12mm.

[0009] Furthermore, the plane perpendicular to the axis of the first yarn guide hole is inclined to the yarn guide wheel along the second direction.

[0010] Furthermore, the yarn guide wheel is inclined toward the first yarn guide hole along the first direction.

[0011] Furthermore, the other end of the main guide arm is provided with a clearance portion corresponding to the guide wheel.

[0012] Furthermore, the other end of the second yarn guide arm has a first opening along the first direction, and a first screw hole leading to the first opening is provided in the height direction corresponding to the first opening. The fixing hook of the yarn guide wheel is inserted into the first opening, and the tightening bolt is threaded to the first screw hole to fasten the fixing hook of the yarn guide wheel at the first opening.

[0013] Furthermore, the main guide arm is provided with a screw hole; one end of the first secondary guide arm is provided with a second opening corresponding to the screw hole, the second opening being strip-shaped; one end of the second secondary guide arm is provided with a third opening corresponding to the screw hole; the first secondary guide arm and the second secondary guide arm are threadedly connected to the screw hole through the second opening and the third opening by locking bolts, so that the first secondary guide arm and the second secondary guide arm are fastened to the main guide arm.

[0014] A weft knitting circular knitting machine includes a loop-forming mechanism and a yarn-guiding mechanism; the yarn-guiding mechanism is the same as described above; the yarn-guiding mechanism is arranged at intervals corresponding to the loop-forming mechanism and is located above the loop-forming mechanism, so that each yarn is guided through the first yarn-guiding auxiliary arm, the second yarn-guiding auxiliary arm or the main yarn-guiding arm of the yarn-guiding mechanism to the needle hook path of the knitting needle of the loop-forming mechanism; wherein, the second yarn-guiding hole of the main yarn-guiding arm is parallel to the radial direction of the needle cylinder of the loop-forming mechanism.

[0015] Unlike existing technologies, the above-mentioned technical solution integrates the first and second yarn guide arms onto the main yarn guide arm, making the structure of the yarn guide mechanism more compact and greatly optimizing the utilization efficiency of the crowded space around the looping mechanism. In addition, the first yarn guide hole of the first yarn guide arm, the yarn guide wheel of the second yarn guide arm, and the second yarn guide hole of the main yarn guide arm are spatially spaced, avoiding interference between the first and second yarn guide holes and the yarn guide wheel. At the same time, a non-coplanar, highly directional yarn feeding path is preset for each yarn in physical space, separating the movement trajectory of each yarn. This ensures that the relative position of each yarn is fixed before entering the looping mechanism, avoiding problems such as yarn position shift and tangling caused by the yarn feeding angle being too close, and ensuring that each yarn can be hooked by the knitting needle strictly according to the predetermined spatial position.

[0016] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description

[0017] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this utility model and other related contents, and should not be considered as limitations on this application.

[0018] In the accompanying drawings of the instruction manual:

[0019] Figure 1 This is a front view of the yarn guiding mechanism described in the specific embodiment;

[0020] Figure 2 This is a schematic diagram of the yarn guiding mechanism described in the specific implementation method;

[0021] Figure 3 This is a schematic diagram of the yarn threading structure of the weaving method for the cover fabric described in a specific embodiment.

[0022] Figure 4 This is a schematic diagram of the longitudinal and transverse angles of the padding yarn as described in the specific implementation method;

[0023] Figures 5-9 This is a process diagram illustrating the weaving method of the cover fabric described in a specific embodiment.

[0024] The reference numerals used in the above figures are explained as follows:

[0025] 10. Veil;

[0026] 20. Intermediate yarn;

[0027] 30. Base yarn;

[0028] 40. Knitting needles;

[0029] 401. Needle hook; 402. Needle bar; 403. Needle tongue;

[0030] 50. Yarn guide arm;

[0031] 501. Second yarn guide hole; 502. Clearance section;

[0032] 60. First yarn guide arm;

[0033] 601. Guide section; 602. Second opening; 603. First yarn guide hole;

[0034] 70. Second yarn guide arm;

[0035] 701. Yarn guide roller;

[0036] 7011, yarn guide groove; 7012, fixing hook;

[0037] 702, the third opening;

[0038] 703, First screw hole;

[0039] 80. Locking bolts;

[0040] 90. Tighten the bolts;

[0041] h, the distance between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the height direction;

[0042] d. The distance between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the second direction. Detailed Implementation

[0043] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0044] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0045] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0046] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0047] In this application, 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 actual quantity, hierarchy or order relationship between these entities or operations.

[0048] Without further limitations, the use of terms such as “comprising,” “including,” “having,” or other similar open-ended expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0049] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0050] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral arrangement; it can be a direct connection or an indirect connection through an intermediate medium; it can be a relationship of two components combined together, an interaction relationship between two components, or a connection within two structures. Those skilled in the art to which this application pertains can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0052] See Figure 1 and Figure 2 As shown, a yarn guiding mechanism includes a main yarn guiding arm 50, a first secondary yarn guiding arm 60, and a second secondary yarn guiding arm 70. Integrating the first secondary yarn guiding arm 60 and the second secondary yarn guiding arm 70 onto the main yarn guiding arm 50 makes the structure of the yarn guiding mechanism more compact and greatly optimizes the utilization efficiency of the congested space around the loop-forming mechanism. Furthermore, the first yarn guiding hole 603 of the first secondary yarn guiding arm 60 and the yarn guiding wheel 701 of the second secondary yarn guiding arm 70, as well as the second yarn guiding hole 501 of the main yarn guiding arm 50, are spatially spaced to avoid the first secondary yarn guiding arm... While the yarn hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 interfere with each other, they also pre-set a non-coplanar, highly directional yarn feeding path for each yarn (e.g., base yarn 30, middle yarn 20, face yarn 10) in physical space. This separates the movement trajectories of each yarn, so that each yarn has its relative position fixed before entering the looping mechanism. This avoids problems such as yarn position shift and tangling caused by the yarn feeding angles being too close, and ensures that the yarn can be hooked by the knitting needle 40 strictly according to the predetermined spatial position.

[0053] The following combination Figure 1 and Figure 2As shown, an embodiment of a yarn guiding mechanism is provided. Specifically, it includes a main yarn guide arm 50, a first secondary yarn guide arm 60, and a second secondary yarn guide arm 70; one end of the first secondary yarn guide arm 60 and one end of the second secondary yarn guide arm 70 are connected to the main yarn guide arm 50 along a first direction; the other end of the first secondary yarn guide arm 60 extends a guide portion 601 away from the first direction, and the guide portion 601 is provided with a first yarn guide hole 603; the other end of the second secondary yarn guide arm 70 is connected to a yarn guide wheel 701; the other end of the main yarn guide arm 50 is provided with a second yarn guide hole 501, and the axis of the second yarn guide hole 501 is parallel to the first direction; the first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 are arranged sequentially along the first direction; the plane perpendicular to the axis of the first yarn guide hole 603 and the plane perpendicular to the axis of the second yarn guide hole 501 are spatially intersected; the first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 are arranged sequentially along a second direction; the first direction and the second direction are intersected.

[0054] The aforementioned yarn guiding mechanism corresponds to the loop-forming mechanism of a textile machine (such as a warp knitting machine or weft knitting machine) and is located above the loop-forming mechanism. This allows each yarn to be guided through the first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 of the yarn guiding mechanism to the path of the needle hook 401 of the knitting needle 40 of the loop-forming mechanism. With the loop-forming mechanism as a reference, the aforementioned first direction refers to the position from closest to the loop-forming mechanism to furthest from it. The first yarn guide hole 603 is closest to the loop-forming mechanism, the yarn guide wheel 701 is in the middle, and the second yarn guide hole 501 is furthest from the loop-forming mechanism. The aforementioned second direction refers to the horizontal direction along the path of the guided yarn to the needle hook 401 of the knitting needle 40 of the loop-forming mechanism.

[0055] The first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 are arranged sequentially along the second direction. This means that the first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 are not completely aligned front to back in the first direction, but are staggered by a certain distance in the horizontal direction of yarn advancement. In some embodiments, the distance d between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the second direction is 8mm-12mm, so that the second yarn guide hole 501 forms a spatial gap, separating the yarn guiding trajectories passing through the first yarn guide hole 603 and the second yarn guide hole 501, avoiding mutual interference and entanglement. Preferably, it is 10mm, which makes the yarn guiding mechanism more compact while avoiding yarn entanglement.

[0056] Preferably, the first and second directions are perpendicular. In the limited space around the loop-forming mechanism (such as the needle cylinder of a weft knitting circular knitting machine), the perpendicular arrangement of the first and second directions optimizes space utilization, allowing multiple identical yarn-guiding mechanisms to be arranged tightly and neatly along the outer periphery of the loop-forming mechanism. While meeting the yarn-guiding requirements, sufficient spacing between them is ensured to prevent mutual interference.

[0057] To fundamentally solve the problem of mutual interference caused by similar paths in multi-yarn weaving, spatial layering of yarn guides in the height direction can be adopted. By differentiating the first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 in the height direction (so that the corresponding yarn guide points of the first yarn guide hole 603, the second yarn guide hole 501, and the yarn guide wheel 701 have different height differences), different yarn paths can be layered in the height direction. This avoids potential contact and entanglement between adjacent yarns when they are too close together on the horizontal plane, greatly improving the stability and reliability of multi-yarn weaving. In some embodiments, the yarn guide groove 7011 of the yarn guide wheel 701 is located above the axis of the first yarn guide hole 603 and the axis of the second yarn guide hole 501, and the axis of the first yarn guide hole 603 is located above the axis of the second yarn guide hole 501. Specifically, the distance h between the axes of the first and second yarn guide holes in the height direction is 6mm-12mm. This range provides sufficient tension and avoids excessive friction while preventing tangling. Preferably, it is 9mm, which ensures the most stable and uniform yarn tension.

[0058] The plane perpendicular to the axis of the first yarn guide hole 603 and the plane perpendicular to the axis of the second yarn guide hole 501 are spatially intersected to avoid contact and entanglement of the yarns when they pass through the first yarn guide hole 603 and the second yarn guide hole 501, thus ensuring absolute isolation of each yarn path in space. In some embodiments, the plane perpendicular to the axis of the first yarn guide hole 603 is inclined to the yarn guide wheel 701 along the second direction, so that the path of the yarn from the first yarn guide hole 603 to the needle hook 401 of the knitting needle 40 of the looping mechanism is a smooth spatial curve, which is accurately delivered to the needle hook 401 of the knitting needle 40, reducing the friction between the yarn and the first yarn guide hole 603 and effectively reducing the generation of fuzz.

[0059] In some embodiments, the yarn guide wheel 701 is inclined toward the first yarn guide hole 603 along a first direction. The inclined yarn guide wheel 701 generates a small guiding force on the yarn, pointing toward the center of the groove bottom. This helps to "gather" the yarn at the center of the yarn guide groove 7011, effectively suppressing the lateral jump and drift of the yarn during high-speed operation. At the same time, it optimizes the path of the yarn from the yarn guide wheel 701 to the needle hook 401 of the knitting needle 40 of the looping mechanism from a "zigzag line" to a "smooth curve", reducing the friction between the yarn and the edge of the yarn guide wheel 701.

[0060] To make the yarn guiding mechanism more compact and adaptable to high-density layout requirements, in some embodiments, the other end of the main yarn guiding arm 50 is provided with a clearance portion 502 corresponding to the yarn guiding wheel 701. That is, the shape of the clearance portion 502 is adapted to the radial profile of the yarn guiding wheel 701, so that a portion of the yarn guiding wheel 701 can be accommodated within the clearance portion 502, thereby reducing the total length of the yarn guiding wheel 701 and the other end of the main yarn guiding arm 50 in the second direction, while ensuring that there is no interference between the two during rotation.

[0061] The aforementioned yarn guide wheel 701 and the second yarn guide arm 70 can be rigidly fixed or adjustable to finely adjust the position of the yarn guide wheel 701 to adapt to different process requirements. In some embodiments, the yarn guide wheel 701 can be adjustedly connected to the other end of the second yarn guide arm 70. Specifically, the other end of the second yarn guide arm 70 has a first opening along a first direction, and a first screw hole 703 corresponding to the first opening in the height direction leading to the first opening is provided. The fixing hook 7012 of the yarn guide wheel 701 passes through the first opening, and the tightening bolt 90 is threadedly connected to the first screw hole 703 to fasten the fixing hook 7012 of the yarn guide wheel 701 at the first opening.

[0062] Similarly, the connection between the first yarn guide arm 60, the second yarn guide arm 70, and the main yarn guide arm 50 can be rigidly fixed or adjustable to finely adjust the positions of the first yarn guide hole 603 and the yarn guide wheel 701 to adapt to different process requirements. Specifically, the main yarn guide arm 50 is provided with a screw hole; one end of the first yarn guide arm 60 is provided with a second opening 602 corresponding to the screw hole; one end of the second yarn guide arm 70 is provided with a third opening 702 corresponding to the screw hole; the first yarn guide arm 60 and the second yarn guide arm 70 are threadedly connected to the screw hole through the first and second openings 602 by locking bolts 80, so that the first yarn guide arm 60 and the second yarn guide arm 70 are fastened to the main yarn guide arm 50. To make the first yarn guide arm 60 adjustable, the second opening 602 can be made into a strip shape; to make the second yarn guide arm 70 adjustable, the third opening 702 can be made into a strip shape.

[0063] See Figure 3 As shown, this application also provides a weft knitting circular knitting machine, including a loop forming mechanism and a yarn guiding mechanism; the yarn guiding mechanism is the aforementioned yarn guiding mechanism; the yarn guiding mechanism is arranged at intervals corresponding to the loop forming mechanism and is located above the loop forming mechanism, so that each yarn is guided through the first yarn guiding auxiliary arm 60, the second yarn guiding auxiliary arm 70 or the yarn guiding main arm 50 of the yarn guiding mechanism to the needle hook 401 path of the knitting needle 40 of the loop forming mechanism; wherein, the second yarn guiding hole 501 of the yarn guiding main arm 50 is parallel to the radial direction of the needle cylinder of the loop forming mechanism.

[0064] The height of the aforementioned yarn guiding mechanism is usually set higher than or level with the position of the hook 401 after the needle tongue 403 of the knitting needle 40 is opened, that is, near the hook 401 when the knitting needle 40 of the looping mechanism rises to the looping height or looping height, to ensure that the yarn can slide into the hook 401 at the optimal angle and reduce missed needles and broken yarn.

[0065] The aforementioned weft knitting circular knitting machine can be used for cover knitting with three or more yarns to achieve richer color gradations, more complex texture effects, or to add more functionality. In this embodiment, the base yarn 30, the middle yarn 20, and the face yarn 10 are used as an example for further explanation.

[0066] The middle yarn 20 passes through the first yarn guide hole 603, the face yarn 10 passes through the second yarn guide hole 501, and the bottom yarn 30 passes through the yarn guide wheel 701. They are guided to the needle hook 401 path of the knitting needle 40 of the knitting mechanism and are accurately delivered to the needle hook 401 point of the knitting needle 40. At this time, the bottom yarn 30 is located close to the needle hook 401 of the knitting needle 40; the face yarn 10 is located close to the needle bar 402 of the knitting needle 40; the padding yarn longitudinal angle and padding yarn transverse angle of the middle yarn 20 are between the bottom yarn 30 and the face yarn 10, and are located in the middle position between the needle bar 402 and the needle hook 401 of the knitting needle 40. During the knitting process, the needle 40 continues to descend, and the old loop pushes the needle latch 403 to close the needle hook 401. The face yarn 10, middle yarn 20, and base yarn 30 are held by the needle hook 401 and begin to bend, forming the basic shape of the loop. At this point, the face yarn 10 is close to the needle latch 403, the base yarn 30 is away from the needle latch 403, and the middle yarn 20 is located between the face yarn 10 and the base yarn 30. Afterward, the old loop is removed from the needle bar 402 and looped onto the new loop to form a complete loop. This process avoids the positional shift of the face yarn 10, middle yarn 20, and base yarn 30 during knitting, effectively eliminating uneven fabric color and mottled defects such as misaligned textures, and significantly improving the yield and appearance quality of the overlay fabric.

[0067] Preferably, the middle yarn 20 passes through the first yarn guide hole 603, the face yarn 10 passes through the second yarn guide hole 501, and the bottom yarn 30 passes through the yarn guide wheel 701, and is respectively guided to the needle hook 401 path of the knitting needle 40 of the looping mechanism. When it is accurately delivered to the needle hook 401 point of the knitting needle 40, the padding longitudinal angle and padding transverse angle of the face yarn 10, middle yarn 20 and bottom yarn 30 are distributed in a sequentially increasing manner; among them, the largest padding longitudinal angle is 60°; and the largest padding transverse angle is 40°.

[0068] See Figure 4As shown, to better express the longitudinal and transverse angles of the yarn padding, a three-dimensional coordinate system is used. In this three-dimensional coordinate system, the direction of the upward or downward movement of the needle 40 is the Z-axis; the first direction is set as the X-axis (along the radial direction of the circular knitting machine, i.e., perpendicular to the circumference), and the second direction is set as the Y-axis (the tangent direction corresponding to the trajectory of the needle 40 in the circumference direction). Within this framework, the aforementioned transverse angle of the yarn padding is the angle between the projection of the yarn feeding direction onto the XY plane and the Y-axis, determining the lateral wrapping range of the yarn on the needle hook 401; the aforementioned longitudinal angle of the yarn padding is the angle between the projection of the yarn feeding direction onto the YZ plane and the Y-axis, determining the height and depth at which the yarn is hooked.

[0069] The difference in the longitudinal angle of the padding yarns of the face yarn 10, middle yarn 20, and bottom yarn 30 can be equal or unequal. In some embodiments, the difference in the longitudinal angle of the padding yarns of the face yarn 10, middle yarn 20, and bottom yarn 30 is equal, which is a fixed constant. For example, the longitudinal angle of the padding yarn of the face yarn 10 is 30°, the longitudinal angle of the padding yarn of the middle yarn 20 is 45°, and the longitudinal angle of the padding yarn of the bottom yarn 30 is 60°, with a difference of 15° between the padding angles of adjacent yarns. In some embodiments, the difference in the longitudinal angle of the padding yarns of the face yarn 10, middle yarn 20, and bottom yarn 30 is not equal and is adjusted "personally" according to the specific characteristics of the yarns. For example, the longitudinal angle of the padding yarn of the face yarn 10 is 20°, the longitudinal angle of the padding yarn of the middle yarn 20 is 35°, and the longitudinal angle of the padding yarn of the bottom yarn 30 is 42°.

[0070] Similarly, the difference in the transverse angle of the padding yarns of the face yarn 10, middle yarn 20, and bottom yarn 30 can be equal or unequal. In some embodiments, the difference in the transverse angle of the padding yarns of the face yarn 10, middle yarn 20, and bottom yarn 30 is equal, which is a fixed constant. For example, the transverse angle of the padding yarn of the face yarn 10 is 40°, the transverse angle of the padding yarn of the middle yarn 20 is 30°, and the transverse angle of the padding yarn of the bottom yarn 30 is 20°, with a difference of 10° between the transverse angles of the padding yarns of adjacent yarns. In some embodiments, the difference in the transverse angle of the padding yarns of the face yarn 10, middle yarn 20, and bottom yarn 30 is not equal, and is adjusted "personally" according to the specific characteristics of the yarns. For example, the transverse angle of the padding yarn of the face yarn 10 is 35°, the transverse angle of the padding yarn of the middle yarn 20 is 20°, and the transverse angle of the padding yarn of the bottom yarn 30 is 10°.

[0071] See Figures 5-9 As shown, during the weaving process:

[0072] During the rising process of needle 40—the loop is removed, the old loop is withdrawn from needle hook 401 and slides to needle bar 402; among them, the bottom yarn 30 is close to needle bar 402, the face yarn 10 is far away from needle bar 402, and the middle yarn 20 is located between face yarn 10 and bottom yarn 30.

[0073] As the knitting needle 40 descends—the padding yarn forms a loop, the knitting needle 40 opens, and the new yarn padding yarn is placed between the needle hook 401 and the needle tongue 403; among them, the padding yarn of the base yarn 30 has the largest longitudinal angle and the largest transverse angle, and is located near the needle hook 401 of the knitting needle 40; the padding yarn of the face yarn 10 has the smallest longitudinal angle and transverse angle, and is located near the needle bar 402 of the knitting needle 40; the padding yarn of the middle yarn 20 has the longitudinal angle and transverse angle between the base yarn 30 and the face yarn 10, and is located in the middle position between the needle bar 402 and the needle hook 401 of the knitting needle 40, so as to satisfy that the yarn is hooked into the needle hook 401 in the predetermined order of base yarn 30, middle yarn 20, and face yarn 10. As the needle 40 continues to descend, the old loop pushes the needle latch 403 to close the needle hook 401. The face yarn 10, middle yarn 20, and base yarn 30 are held by the needle hook 401 and begin to bend, forming the basic shape of the loop. At this point, the face yarn 10 is close to the needle latch 403, the base yarn 30 is away from the needle latch 403, and the middle yarn 20 is located between the face yarn 10 and the base yarn 30. Afterward, the old loop is removed from the needle bar 402 and looped onto the new loop, forming a complete loop. This prevents the face yarn 10, middle yarn 20, and base yarn 30 from shifting positions during the knitting process.

[0074] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A yarn guiding mechanism, characterized in that, It includes a main yarn guide arm, a first secondary yarn guide arm, and a second secondary yarn guide arm; one end of the first secondary yarn guide arm and one end of the second secondary yarn guide arm are connected to the main yarn guide arm along a first direction; the other end of the first secondary yarn guide arm extends a guide portion away from the first direction, and the guide portion is provided with a first yarn guide hole; the other end of the second secondary yarn guide arm is connected to a yarn guide wheel; the other end of the main yarn guide arm is provided with a second yarn guide hole, and the axis of the second yarn guide hole is parallel to the first direction; the first yarn guide hole, the second yarn guide hole, and the yarn guide wheel are arranged sequentially along the first direction; the plane perpendicular to the axis of the first yarn guide hole and the plane perpendicular to the axis of the second yarn guide hole intersect in space; the first yarn guide hole, the second yarn guide hole, and the yarn guide wheel are arranged sequentially along a second direction; the first direction and the second direction intersect.

2. The yarn guiding mechanism according to claim 1, characterized in that, The yarn guide groove of the yarn guide wheel is located above the axis of the first yarn guide hole and the axis of the second yarn guide hole, and the axis of the first yarn guide hole is located above the axis of the second yarn guide hole.

3. The yarn guiding mechanism according to claim 1, characterized in that, The distance between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the height direction is 6mm-12mm.

4. The yarn guiding mechanism according to claim 1, characterized in that, The distance between the axis of the first yarn guide hole and the axis of the second yarn guide hole in the second direction is 8mm-12mm.

5. The yarn guiding mechanism according to claim 1, characterized in that, The plane perpendicular to the axis of the first yarn guide hole is inclined to guide the yarn wheel along the second direction.

6. The yarn guiding mechanism according to claim 1, characterized in that, The yarn guide wheel is inclined toward the first yarn guide hole along the first direction.

7. The yarn guiding mechanism according to claim 6, characterized in that, The other end of the main guide arm is provided with a clearance part corresponding to the guide wheel.

8. The yarn guiding mechanism according to claim 6, characterized in that, The other end of the second yarn guide arm has a first opening along the first direction, and a first screw hole leading to the first opening is provided in the height direction corresponding to the first opening. The fixing hook of the yarn guide wheel is inserted into the first opening, and the tightening bolt is threaded to the first screw hole to fasten the fixing hook of the yarn guide wheel at the first opening.

9. The yarn guiding mechanism according to claim 1, characterized in that, The main guide arm is provided with a screw hole; one end of the first secondary guide arm is provided with a second opening corresponding to the screw hole, and the second opening is strip-shaped; one end of the second secondary guide arm is provided with a third opening corresponding to the screw hole; the first secondary guide arm and the second secondary guide arm are threadedly connected to the screw hole through the second opening and the third opening by locking bolts, so that the first secondary guide arm and the second secondary guide arm are fastened to the main guide arm.

10. A weft knitting circular knitting machine, characterized in that, It includes a loop-forming mechanism and a yarn-guiding mechanism; the yarn-guiding mechanism is the yarn-guiding mechanism according to any one of claims 1-9; the yarn-guiding mechanism is arranged at intervals corresponding to the loop-forming mechanism and is located above the loop-forming mechanism, so that each yarn is guided to the needle hook path of the knitting needle of the loop-forming mechanism through the first yarn-guiding auxiliary arm, the second yarn-guiding auxiliary arm or the main yarn-guiding arm of the yarn-guiding mechanism; wherein, the second yarn-guiding hole of the main yarn-guiding arm is parallel to the radial direction of the needle cylinder of the loop-forming mechanism.

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