Winding method and winder for plying continuous long fibers into twistless roving
By setting up yarn split holes upstream and downstream of the tension control system of the winder to fix single stranded raw wire, the problems of inaccurate length of the twistless roving, uneven tension of the raw wire and serious wear of the friction rubber skin are solved, and the quality and efficiency of the winding are improved.
Patent Information
- Application Number
- CN202411909939.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-03-11
AI Technical Summary
The existing winding machines and methods have problems such as inaccurate length counting, uneven tension of the original wire and serious wear of the friction rubber skin when preparing the twistless roving.
Multiple yarn split holes are arranged upstream and downstream of the tension control system. The apertures of the yarn split holes match the diameter of the single stranded raw wire, so that the single stranded raw wire cannot swing in a large range after passing through the yarn split holes, thereby fixing the single stranded raw wire on the yarn pressing roller, tension roller and yarn guide roller to reduce the swing of the stranded yarn.
It effectively improves the accuracy of the length of the strand, evens the stress of all the original wires, reduces the drooping of some strands and wear on the friction rubber skin, and comprehensively improves the quality of the winding.
Smart Images
Figure CN119590939A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of fiber plying, in particular to a winding method and a winding machine for plying continuous long fibers into untwisted roving. Background Art
[0002] Continuous long fiber is a general term for glass fiber, basalt fiber, boron fiber, carbon fiber, silicon carbide fiber, silicon oxide fiber, aluminum oxide fiber and silicon nitride fiber, which are used in many fields. Taking glass fiber as an example, it is widely used in fiberglass products, construction, automobiles, electronic appliances, energy, sports and other related fields. Continuous long fiber is twisted into roving by winding multiple strands of fiber through a winding machine; taking glass fiber twisted into roving as an example, Figure 1-Figure 2 As shown, the winding machine includes a first yarn guide plate 2, a second yarn guide plate 3, a yarn guide wheel 4, a yarn collecting hole 5, a yarn pressing roller 6, a tension roller 7, a yarn guide roller 8, a cable arrangement device 9, a yarn winding machine head 10 and other structures. The first yarn guide plate 2 and the second yarn guide plate 3 are respectively provided with yarn guide holes; the specific process is to lead out a certain amount of glass fiber raw yarn (fiber raw yarn 1) placed on the yarn frame, pass through the first yarn guide plate 2, the second yarn guide plate 3, the yarn guide wheel 4 and the yarn collecting hole 5, and then pass through the yarn pressing roller 6, the tension roller 7, the yarn guide roller 8, the cable arrangement device 9, the yarn winding machine head 10, etc. 7, yarn guide roller 8, and finally pass through the wire arrangement device 9 of the winding machine head 10, and be wound on the winding machine head 10. As the machine head rotates, the yarn is rolled on the machine head; the wire arrangement device 9 moves back and forth along the axial direction of the machine head to make the yarn roll into a cylindrical shape; the pressing roller 6, the tension roller 7 and the yarn guide roller 8 form a tension control system for controlling the tension of the strand 14; the tension roller 7 is also an important device for measuring the length of the strand 14. The length of the untwisted roving wound by the machine head is automatically calculated by the number of circles of the tension roller 7. Although the current winding machine and winding method can prepare the twisted untwisted roving, there are also the following obvious disadvantages.
[0003] 1. Inaccurate length measurement: Specifically, in the current winding machine and method, in order to meet the needs of winding yarns of different thicknesses and different numbers of strands, the diameter of the yarn collecting hole 5 is made quite large, usually with a diameter of 15-20mm, or even larger, which results in a larger activity space for the untwisted coarse yarn with fewer strands or thinner strands in the hole 5, so that the strand 14 has a larger moving space along the axial direction of the yarn pressing roller 6; and the strand 14 moves back and forth along the axial direction of the machine head under the action of the cable arrangement device 9, which makes the strand 14 move back and forth along the axial direction of the yarn guide roller 8. In this way, the strand 14 will have a larger swing range along the axial direction on the tension roller 7, so that the strand 14 around the tension roller 7 presents an irregular spatial curve (such as the surface where the spatial curve of the strand 14 is located is not perpendicular to the axis of the tension roller 7). Because the theoretical length is calculated according to the standard circumference of the tension roller 7, this causes the theoretical length to be different from the actual length.
[0004] 2. There are some uneven tensions of the original yarns in the ply yarn 14 after plying, and the drape is large. Specifically, in the current winding machine and method, since the glass fiber untwisted coarse yarn has a certain diameter and thickness, especially when the number of plies is more and the single ply yarn 14 is thicker, because the ply yarn 14 is too thick and thick, a large gap is formed between the guide wheel 4 and the tension roller 7, and between the tension roller 7 and the guide roller 8 in the path of the pressing roller 6, the tension roller 7 and the guide roller 8. In addition, there are many plies, and there is no twist matching between the single ply original yarns 13, which can easily cause the single ply or multiple ply original yarns to break away from the pressure between the wheels. The tension of these single ply or multiple ply original yarns that are separated from the pressure is less than the tension of the original yarns that are not separated from the pressure, resulting in uneven tension of the single yarn and excessive drape. The more plies there are, the more obvious this phenomenon is. At the same time, the yarn is too thick and forms an inner and outer diameter with a certain thickness on the tension roller 77. The outer diameter of the yarn is necessarily longer than the inner diameter of the yarn. This is also an important reason for the uneven tension of some raw silks and excessive drape.
[0005] 3. The friction rubber skin on the surface of the tension roller 7 and the yarn pressing roller 6 is easily worn and grooved, and needs to be replaced frequently. Specifically, in the current winding machine and method, when the twisted untwisted coarse yarn passes through the yarn pressing roller 6 and the tension roller 7, under the action of tension, the tension of the entire yarn strand 14 becomes a certain pressure, and the friction of the friction rubber skin in contact with it is concentrated, so that friction grooves are easily caused. Especially when the number of strands is large and thick, the tension of the yarn strand 14 is particularly large, which is more likely to cause grooves.
[0006] Based on solving the above-mentioned technical problems, the existing winding machine and winding method are improved. Summary of the invention
[0007] The purpose of the present invention is to provide a winding method and a winding machine for combining continuous long fibers into untwisted coarse yarns in order to solve the above-mentioned problems, which can effectively improve the accuracy of yarn strand length measurement, improve the uniformity of force on all raw fibers, reduce the drape of some yarn strands and the wear on the friction rubber skin, and comprehensively improve the quality of winding.
[0008] The technical solution adopted by the present invention is as follows: a method for winding continuous long fibers into untwisted rovings, comprising the following steps:
[0009] S1: Along the moving direction of the single strand of raw yarn, a plurality of first yarn splitting holes are arranged at the upstream position of the yarn pressing roller, and a plurality of second yarn splitting holes are arranged at the downstream position of the yarn guide roller, and the yarn collecting hole between the yarn guide wheel and the yarn pressing roller is arranged between the second yarn splitting hole and the wire arrangement device; the apertures of the first yarn splitting hole and the second yarn splitting hole match the diameter of the single strand of raw yarn;
[0010] S2: Lead out a plurality of fiber strands placed on the yarn rack, pass through the first yarn guide hole, the second yarn guide hole, and the yarn guide wheel in sequence, separate the single strands of the fiber strands, and pass the single strands of the fiber strands into different first yarn separation holes respectively;
[0011] S3: The single strand of yarn drawn out from the first yarn splitting hole is passed around the yarn pressing roller, the tension roller and the yarn guide roller respectively, and then passed into the second yarn splitting hole respectively;
[0012] S4: passing all the single strands of raw yarn drawn out from the second yarn distribution hole through the yarn collecting hole to form strands of yarn, and finally winding the strands of yarn on the winding machine head through the wire arrangement device;
[0013] S5: starting the winding head of the winding machine, the winding head pulls the strands so that a plurality of fiber strands are continuously stranded and wound on the winding head; until one fiber strand is released, the production of the untwisted roving is completed.
[0014] Furthermore, the plurality of first yarn dividing holes are arranged along the axial direction of the yarn pressing roller.
[0015] Furthermore, the plurality of second yarn dividing holes are arranged along the axial direction of the yarn guide roller.
[0016] Furthermore, the apertures of the first yarn dividing hole and the second yarn dividing hole are 1-2 mm larger than the diameter of the single strand of original yarn.
[0017] A winding machine for combining continuous long fibers into untwisted coarse yarns, wherein a yarn guide wheel, a yarn pressure roller, a tension roller, a yarn guide roller, a wire arrangement device and a yarn winding machine head are sequentially arranged along the moving direction of a single strand of raw yarn; a first yarn dividing plate is arranged between the yarn guide wheel and the yarn pressure roller, a second yarn dividing plate is arranged between the second wire guide wheel and the wire arrangement device, and a yarn collecting hole is arranged between the second yarn dividing plate and the wire arrangement device; both the first yarn dividing plate and the second yarn dividing plate have yarn hole groups, each yarn hole group has a plurality of yarn dividing holes, the aperture of the yarn dividing holes on the first yarn dividing plate matches the aperture of the yarn dividing holes on the second yarn dividing plate, and the aperture of the yarn dividing holes matches the diameter of the single strand of raw yarn.
[0018] Furthermore, there are multiple groups of yarn hole groups on the first yarn dividing plate and the second yarn dividing plate. For the same yarn dividing plate, the yarn dividing holes in the same yarn hole group have the same size, and the yarn dividing holes in different yarn hole groups have different sizes.
[0019] Furthermore, the yarn dividing holes in each yarn hole group are arranged in an array along the length direction of the first yarn dividing plate and the second yarn dividing plate.
[0020] Furthermore, the plurality of yarn hole groups are arranged in an array along the width direction of the first yarn dividing plate and the second yarn dividing plate.
[0021] Furthermore, the diameter of the yarn separation hole is 1-2 mm larger than the diameter of the single strand of original yarn.
[0022] Furthermore, the surface where the first yarn splitting plate is located is parallel to the axes of the yarn guide wheel and the yarn pressing roller; the surface where the second yarn splitting plate is located is parallel to the axis of the yarn guide roller and perpendicular to the axis of the yarn collecting hole.
[0023] Furthermore, along the moving direction of the single strand of original yarn, upstream of the yarn guide wheel, a first yarn guide plate and a second yarn guide plate are sequentially arranged, and both the first yarn guide plate and the second yarn guide plate are provided with yarn guide holes.
[0024] Furthermore, the winding machine is applied to the winding method of plying the continuous long fibers into untwisted roving.
[0025] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:
[0026] 1. The present invention arranges a plurality of yarn splitting holes at the upstream and downstream of the tension control system along the moving direction of the single strand of raw yarn. The aperture of the yarn splitting hole matches the diameter of the single strand of raw yarn, so that the single strand of raw yarn cannot swing in a large range in the yarn splitting hole after passing through the yarn splitting hole, that is, each strand of raw yarn is fixed at the upstream and downstream of the tension control system, so that the single strand of raw yarn cannot swing axially on the pressing roller, the tension roller and the yarn guide roller (equivalent to fixing the two ends of the raw yarn, so that the middle part of the raw yarn is also fixed), and a yarn collecting hole is added upstream of the wire arranging device and downstream of the second yarn splitting hole. The wire arranging device swings back and forth. Since the second yarn splitting hole limits the swing of the strand of yarn, the strand of yarn only swings back and forth in the yarn collecting hole, thereby effectively solving the technical problem of inaccurate length measurement of the strand of yarn;
[0027] 2. The present invention arranges a plurality of yarn splitting holes at the upstream and downstream of the tension control system, and each yarn splitting hole corresponds to a single strand of raw yarn, so that the single strand of raw yarn is in direct contact with the yarn pressing roller, the tension wheel and the yarn guide roller, and the force is evenly applied, thereby avoiding the problem that some single strands of raw yarn are not in sufficient contact with the tension wheel due to factors such as a large number of strands, thick strands, and too thick strands of yarn, thereby solving the problem of uneven tension and excessive drape of the single strand of raw yarn;
[0028] 3. The present invention arranges a plurality of yarn dividing holes at the upstream and downstream of the tension control system, which can disperse the combined yarn strands, thereby dispersing the force between the yarn strands and the friction rubber skin, avoiding the rapid grooving phenomenon due to excessive and concentrated friction on a certain part of the friction rubber sheet. In addition, the friction force of a single strand of raw silk on the friction rubber sheet is much smaller than that of the yarn strands, which slows down the grooving speed and effectively improves the service life of the rubber sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The present invention will now be described by way of example with reference to the accompanying drawings, in which:
[0030] Figure 1 It is a schematic diagram of the structure of a current winding machine;
[0031] Figure 2 for Figure 1 Views in directions A, B, and C;
[0032] Figure 3It is a structural schematic diagram of the yarn winding machine of the present invention;
[0033] Figure 4 for Figure 3 Views from four directions: D, E, F, and G;
[0034] Markings in the figure: 1-fiber raw yarn; 2-first yarn guide plate; 3-second yarn guide plate; 4-yarn guide wheel; 5-yarn collecting hole; 6-yarn pressure roller; 7-tension roller; 8-yarn guide roller; 9-cable arranger; 10-yarn winding machine head; 11-first yarn dividing plate; 110-first yarn dividing hole; 12-second yarn dividing plate; 120-second yarn dividing hole; 13-single raw yarn; 14-yarn. DETAILED DESCRIPTION
[0035] In the description of this specification, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of this specification is usually placed when used. It is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this specification.
[0036] In addition, if the terms "horizontal" or "vertical" appear in the description of this specification, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0037] In the description of this specification, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between the internal parts of two elements.
[0038] Example 1
[0039] like Figure 2-Figure 4 As shown, a winding method for plying continuous long fibers into untwisted roving is improved on the existing winding machine and winding method, and comprises the following steps:
[0040] S1: Along the moving direction of the single strand 13, a plurality of first yarn splitting holes 110 are arranged at the upstream position of the yarn pressing roller 6, and a plurality of second yarn splitting holes 120 are arranged at the downstream position of the yarn guide roller 8, and the yarn collecting hole 5 between the yarn guide wheel 4 and the yarn pressing roller 6 is arranged between the second yarn splitting hole 120 and the cable arrangement device 9; the apertures of the first yarn splitting holes 110 and the second yarn splitting holes 120 match the diameter of the single strand 13;
[0041] S2: Lead out a plurality of fiber strands 1 placed on the yarn rack, pass through the first yarn guide hole, the second yarn guide hole, and the yarn guide wheel 4 in sequence, and then separate the single strands 13, and the single strands 13 are respectively passed through different first yarn separation holes 110;
[0042] S3: The single strand of yarn 13 led out of the first yarn splitting hole 110 is passed around the yarn pressing roller 6, the tension roller 7 and the yarn guide roller 8 respectively, and then passes into the second yarn splitting hole 120 respectively;
[0043] S4: All the single strands of yarn 13 drawn out from the second yarn distribution hole 120 pass through the yarn collecting hole 5 to form a strand of yarn 14, and finally the strand of yarn 14 is wound on the winding machine head 10 through the wire arrangement device 9;
[0044] S5: The winding head 10 of the winding machine is started, and the winding head 10 pulls the strand 14 so that the plurality of fiber strands 1 are continuously stranded and wound on the winding head 10; until one fiber strand 1 is released, the production of the untwisted roving is completed.
[0045] In the above method, along the moving direction of the single strand of yarn 13, a plurality of yarn splitting holes are arranged at the upstream and downstream of the tension control system, and the aperture of the yarn splitting hole matches the diameter of the single strand of yarn 13, so that the single strand of yarn 13 cannot swing in a large range in the yarn splitting hole after passing through the yarn splitting hole, that is, each strand of yarn is fixed at the upstream and downstream of the tension control system, so that the single strand of yarn 13 cannot swing axially on the yarn pressing roller 6, the tension roller 7 and the yarn guide roller 8 (equivalent to fixing the two ends of the yarn, so that the middle part of the yarn is also fixed), and a collecting hole 120 is added upstream of the wire arrangement device 9 and downstream of the second yarn splitting hole 120. The yarn hole 5 and the wire arranger 9 swing back and forth. Since the second yarn dividing hole 120 limits the swing of the strand 14, the strand 14 only swings back and forth in the yarn collecting hole 5. This overcomes the problem that "when the existing yarn winding method prepares the strand 14, since the wire diameter of the strand 14 is smaller than the aperture of the yarn collecting hole 5, the strand 14 has a swinging space in the yarn collecting hole 5, and the strand 14 swings in the yarn collecting hole 5, which causes the strand 14 to swing left and right on the yarn pressing roller 6 and the tension roller 7, and the tension wheel cannot accurately measure the length". It also overcomes the problem of "inaccurate length measurement of the tension wheel caused by the back and forth swing of the wire arranger 9", thereby effectively solving the length measurement accuracy of the strand 14.
[0046] In the above method, each yarn dividing hole corresponds to a single strand of yarn 13, so that the single strand of yarn 13 is in direct contact with the yarn pressing roller 6, the tension wheel and the yarn guide roller 8, and the force is evenly applied, thereby avoiding the problem that some single strands of yarn 13 are not in sufficient contact with the tension wheel due to factors such as a large number of strands, thick yarn 14, and too thick yarn 14. This solves the problem of uneven tension and excessive drape of the single strand of yarn 13; thereby effectively solving the subsequent production problems caused by uneven tension and excessive drape, that is, when warping and weaving untwisted coarse yarn cloth, pultrusion, and winding to make reinforced materials, uneven tension of the yarn is not only easy to cause warping and breaking, but also causes cloth surface breaking and warping loops, seriously affecting the warping and weaving efficiency and product quality. Untwisted roving with large drape may cause uneven fiber distribution in the pultrusion process, because in the pultrusion process, the material is continuously pulled through the mold to form, and the large drape may prevent the roving from being neatly arranged according to the mold shape and the pulling direction, and the fibers may be bent or folded, which will affect the strength and appearance quality of the product. In the winding process, untwisted roving with large drape may be offset during winding. Since it cannot fit the shape of the winding core mold well, it is easy to produce wrinkles, resulting in uneven thickness of the winding layer, which reduces the performance of the final product due to uneven internal stress distribution when subjected to external force.
[0047] In the above method, multiple yarn separation holes can disperse the combined yarn strands 14, thereby dispersing the force between the yarn strands 14 and the friction rubber skin, avoiding rapid grooving due to excessive and concentrated friction on a certain part of the friction rubber sheet. In addition, the friction force of the single strand of raw silk 13 on the friction rubber sheet is much smaller than that of the yarn strands 14, which slows down the grooving speed and effectively increases the service life of the rubber sheet.
[0048] Example 2
[0049] Based on Example 1, a specific implementation method that can be implemented is further proposed.
[0050] In an optional specific implementation, a plurality of first yarn dividing holes 110 are arranged along the axial direction of the yarn pressing roller 6; a plurality of second yarn dividing holes 120 are arranged along the axial direction of the yarn guide roller 8; so that the single strand of raw yarn 13 is distributed along the axial direction of the yarn pressing roller 6, the tension roller 7 and the yarn guide roller 8 with the cooperation of the first yarn dividing holes 110 and the second yarn dividing holes 120, thereby dispersing the force between the yarn strand 14 and the friction rubber skin.
[0051] In an optional specific implementation, the apertures of the first yarn splitting hole 110 and the second yarn splitting hole 120 are 1-2 mm larger than the diameter of the single strand of original yarn 13 to avoid the uneven thickness of the single strand of original yarn 13 causing severe friction of the thick section in the yarn splitting hole.
[0052] In an optional specific implementation manner, the first yarn dividing holes 110 and the second yarn dividing holes 120 can be arranged in multiple groups accordingly, each group having multiple first yarn dividing holes 110 or second yarn dividing holes 120; the apertures of the first yarn dividing holes 110 in different groups are different, and the apertures of the second yarn dividing holes 120 are equal to the apertures of the corresponding first yarn dividing holes 110, so as to adapt to the plying process of single-strand raw yarns 13 of different diameters; for example, according to the linear density of the single-strand raw yarn 13, the single-strand raw yarn 13 can be classified into levels such as below 200tex, 200-400tex, 400-600tex, 600-800tex, and 800-1000tex, and the diameters of the single-strand raw yarn 13 of these levels are calculated, so that multiple groups of first yarn dividing holes 110 and multiple groups of second yarn dividing holes 120 can be set according to the diameters.
[0053] Example 3
[0054] A winding machine for combining continuous long fibers into untwisted coarse yarns, wherein a yarn guide wheel 4, a yarn pressing roller 6, a tension roller 7, a yarn guide roller 8, a cable arranger 9 and a yarn winding machine head 10 are arranged in sequence along the moving direction of a single strand of raw yarn 13; a first yarn dividing plate 11 is arranged between the yarn guide wheel 4 and the yarn pressing roller 6, a second yarn dividing plate 12 is arranged between the second wire guide wheel and the cable arranger 9, and a yarn collecting hole 5 is arranged between the second yarn dividing plate 12 and the cable arranger 9; both the first yarn dividing plate 11 and the second yarn dividing plate 12 have yarn hole groups, each yarn hole group has a plurality of yarn dividing holes, the aperture of the yarn dividing holes on the first yarn dividing plate 11 matches the aperture of the yarn dividing holes on the second yarn dividing plate 12, and the aperture of the yarn dividing holes matches the diameter of the single strand of raw yarn 13.
[0055] It should be noted that the yarn splitting holes on the first yarn splitting plate 11 are equivalent to the first yarn splitting holes 110 disclosed in Example 1-2; the yarn splitting holes on the second yarn splitting plate 12 are equivalent to the second yarn splitting holes 120 disclosed in Example 1-2. Therefore, the working method of the yarn winder is the same as the yarn winding method of plying continuous long fibers into untwisted roving disclosed in Example 1-2, and also produces the same effect, which will not be further described here.
[0056] Example 4
[0057] Based on Example 3, a feasible specific implementation method is further proposed.
[0058] A feasible implementation manner is that there are multiple groups of yarn holes on the first yarn dividing plate 11 and the second yarn dividing plate 12. For the same yarn dividing plate, the yarn dividing holes in the same yarn hole group have the same size, and the yarn dividing holes in different yarn hole groups have different sizes. This setting is equivalent to setting multiple groups of first yarn dividing holes 110 and multiple groups of second yarn dividing holes 120 in the embodiment to adapt to the plying process of single-strand raw yarns 13 of different diameters.
[0059] A feasible implementation manner is that the yarn holes in each yarn hole group are arranged along the length direction of the first yarn dividing plate 11 and the second yarn dividing plate 12; multiple yarn hole groups are arranged along the width direction of the first yarn dividing plate 11 and the second yarn dividing plate 12, so that the single strands of raw yarn 13 passing through the corresponding first yarn dividing holes 110 and the second yarn dividing holes 120 are independent of each other and do not interfere with each other.
[0060] In a feasible implementation manner, the diameter of the yarn separation hole is 1-2 mm larger than the diameter of the single strand of original yarn 13, so as to avoid the uneven thickness of the single strand of original yarn 13 causing the thick section to have severe friction in the yarn separation hole.
[0061] A feasible implementation manner, the surface where the first yarn dividing plate 11 is located is parallel to the axes of the yarn guide wheel 4 and the yarn pressing roller 6; the surface where the second yarn dividing plate 12 is located is parallel to the axis of the yarn guide roller 8 and perpendicular to the axis of the yarn collecting hole 5, thereby reducing the turning angle of the single yarn 13 passing through the first yarn dividing hole 110 and the second yarn dividing hole 120, and making the single yarn 13 pass through the yarn dividing hole along the axis of the yarn dividing hole as much as possible, thereby reducing the squeezing pressure of the single yarn 13 on the inner walls of the first yarn dividing hole 110 and the second yarn dividing hole 120, thereby further reducing the possibility of damage between the single yarn 13 and the inner wall due to friction; at the same time, in conjunction with the distribution of the first yarn dividing hole 110 and the second yarn dividing hole 120, the arrangement requirements of multiple first yarn dividing holes 110 and multiple second yarn dividing holes 120 in Example 2 are effectively realized.
[0062] In a feasible implementation manner, along the moving direction of the single strand 13, upstream of the yarn guide wheel 4, a first yarn guide plate 2 and a second yarn guide plate 3 are sequentially arranged, and both the first yarn guide plate 2 and the second yarn guide plate 3 are provided with yarn guide holes.
[0063] Example 5
[0064] On the basis of any one of the implementations in Examples 3-4, a feasible specific implementation is further proposed, that is, the winding machine is applied to the winding method of plying the continuous long fibers into untwisted roving described in Examples 1-2.
[0065] The present invention is not limited to the above-mentioned specific embodiments, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.
Claims
1. A method for winding continuous long fibers into rovings, characterized in that: The following steps are involved: S1: Along the moving direction of the single strand of raw yarn (13), a plurality of first yarn splitting holes (110) are arranged at the upstream position of the yarn pressing roller (6), and a plurality of second yarn splitting holes (120) are arranged at the downstream position of the yarn guide roller (8), and at the same time, the yarn collecting hole (5) between the yarn guide wheel (4) and the yarn pressing roller (6) is arranged between the second yarn splitting hole (120) and the cable arrangement device (9); the apertures of the first yarn splitting holes (110) and the second yarn splitting holes (120) match the diameter of the single strand of raw yarn (13); S2: Leading out a plurality of fiber strands (1) placed on a yarn rack, passing through a first yarn guide hole, a second yarn guide hole, and a yarn guide wheel (4) in sequence, and then separating the single strands (13), and passing the single strands (13) into different first yarn separation holes (110) respectively; S3: The single strand of raw yarn (13) drawn out from the first yarn splitting hole (110) is passed around the yarn pressing roller (6), the tension roller (7) and the yarn guide roller (8) respectively, and then passed into the second yarn splitting hole (120) respectively; S4: passing all the single strands of raw yarn (13) drawn out from the second yarn distribution hole (120) through the yarn collection hole (5) to form a strand of yarn (14), and finally winding the strand of yarn (14) onto the winding machine head (10) through the wire arrangement device (9); S5: starting the winding head (10) of the winding machine, and the winding head (10) pulls the strand (14) so that a plurality of fiber strands (1) are continuously stranded and wound on the winding head (10); until one fiber strand (1) is released, and the production of the untwisted roving is completed.
2. The yarn winding method according to claim 1, characterized in that: A plurality of first yarn splitting holes (110) are arranged along the axial direction of the yarn pressing roller (6); and a plurality of second yarn splitting holes (120) are arranged along the axial direction of the yarn guide roller (8).
3. The yarn winding method according to claim 1, characterized in that: The apertures of the first yarn splitting hole (110) and the second yarn splitting hole (120) are 1-2 mm larger than the diameter of the single strand of original yarn (13).
4. A winding machine for combining continuous long fibers into untwisted roving, wherein a yarn guide wheel (4), a yarn pressing roller (6), a tension roller (7), a yarn guide roller (8), a cable arrangement device (9) and a winding machine head (10) are arranged in sequence along the moving direction of a single strand of raw yarn (13); characterized in that: A first yarn dividing plate (11) is arranged between the yarn guide wheel (4) and the yarn pressing roller (6), a second yarn dividing plate (12) is arranged between the second guide wheel and the wire arranging device (9), and a yarn collecting hole (5) is arranged between the second yarn dividing plate (12) and the wire arranging device (9); both the first yarn dividing plate (11) and the second yarn dividing plate (12) have yarn hole groups, each yarn hole group has a plurality of yarn dividing holes, the aperture of the yarn dividing hole on the first yarn dividing plate (11) matches the aperture of the yarn dividing hole on the second yarn dividing plate (12), and the aperture of the yarn dividing hole matches the diameter of the single strand of raw yarn (13).
5. The yarn winder according to claim 4, characterized in that: There are multiple groups of yarn holes on the first yarn splitting plate (11) and the second yarn splitting plate (12). For the same yarn splitting plate, the yarn splitting holes in the same yarn hole group have the same size, while the yarn splitting holes in different yarn hole groups have different sizes.
6. The yarn winder according to claim 5, characterized in that: The yarn holes in each yarn hole group are arranged in an array along the length direction of the first yarn dividing plate (11) and the second yarn dividing plate (12); and multiple yarn hole groups are arranged in an array along the width direction of the first yarn dividing plate (11) and the second yarn dividing plate (12).
7. The yarn winder according to claim 4, characterized in that: The diameter of the yarn separation hole is 1-2 mm larger than the diameter of the single strand of original yarn (13).
8. The yarn winder according to claim 4, characterized in that: The surface where the first yarn dividing plate (11) is located is parallel to the axes of the yarn guide wheel (4) and the yarn pressing roller (6); the surface where the second yarn dividing plate (12) is located is parallel to the axis of the yarn guide roller (8) and perpendicular to the axis of the yarn collecting hole (5).
9. The yarn winder according to claim 4, characterized in that: Along the moving direction of the single strand of original yarn (13), upstream of the yarn guide wheel (4), a first yarn guide plate (2) and a second yarn guide plate (3) are arranged in sequence, and both the first yarn guide plate (2) and the second yarn guide plate (3) are provided with yarn guide holes.
10. The yarn winding machine according to any one of claims 4 to 9, characterized in that: The winding machine is applied to the winding method for plying continuous long fibers into untwisted roving as described in any one of claims 1 to 3.