spinning and / or twisting machine

Abstract

A spinning and / or twisting machine with a plurality of air loops, comprising: a yarn feeding device (1); a yarn collection device (4) for the yarn having an axis of rotation (V); a guide (8) located between the yarn feeding device (1) and the yarn collection device (4); a device for generating the diameter of the air loop (DB); a drive device connected to the yarn collection device (4), wherein the inner diameter of the guide (8) is greater than the diameter of a standard guide (8) for various types of yarn and less than 1.1 times the diameter of the air loop generator (DB). Preferably, the inner diameter of the guide (8) is between 0.01 and 0.9 times the diameter of the air loop generator (DB). Preferably, the spinning and / or twisting machine comprises a plurality of guides (8, 8', 8''), the inner diameter of at least one of the plurality of guides (8, 8', 8'') being greater than the diameter of a standard guide (8) for various types of yarn and less than 1.1 times the diameter of the air loop generator (DB).

Description

[0001] The purpose of this invention

[0002] As stated in the heading of this specification, the present invention relates to spinning and / or twisting machines that provide advantages and features for achieving their intended use, which are described in further detail and represent an improvement over the current prior art.

[0003] The present invention focuses on a spinning and / or twisting machine comprising: a yarn guide, the inner diameter of which is larger than that of a standard yarn guide, such that vibration is generated between the yarn output point of the yarn feeding device and the yarn guide, the vibration making the stress of the yarn more constant, stable and balanced, thereby making the shape and number of air rings between the yarn guide and the air ring diameter generating device more constant.

[0004] Furthermore, the present invention proposes a device for moving the relative position of the yarn output point of the yarn guide relative to the yarn feeding device along a path that is not aligned with the axis of rotation during the spinning cycle, so that the yarn does not collide with the yarn pickup device along the path of the total height of the air ring formed by the yarn and the stress is more constant, thus making the shape and number of air rings between the yarn guide and the air ring generating device (i.e., the ring and the traveling member) as constant as possible.

[0005] The present invention also includes other technical features such as making the stress of the yarn as constant as possible, thereby making the shape and number of air rings between the yarn guide and the loops and traveling parts as constant, stable and balanced as possible.

[0006] Application areas of this invention

[0007] The invention is applicable to industries that specialize in manufacturing air-ring spinning and twisting machines; particularly ring spinning machines, ring twisting machines, cabling twisting machines, 2x1 or TFO doubling twisting machines, and rolling mills.

[0008] Background Art of the Invention

[0009] As is well known, in the process of spinning and twisting yarns using multiple air pockets, regardless of the type of machine, it is desirable to keep the yarn stress and the shape of the air pockets as constant and stable as possible.

[0010] Spinning and twisting machines that utilize multi-air ring technology to process yarns mainly include:

[0011] - A yarn feeding device having a yarn output point that may or may not be aligned with the rotation axis of a yarn pickup device for yarn.

[0012] - A yarn pickup device with a rotating axis.

[0013] - A yarn guide, located between the yarn feeding device and the yarn pickup device or spindle for yarn.

[0014] - An air ring generating device, which, for example, includes a traveler-ring assembly, in the case of a machine with a ring, is vertically movable and co-centered with the rotation axis of the yarn pickup device, and

[0015] - A drive unit connected to the yarn pickup device.

[0016] This allows the yarn pickup device to rotate around its axis of rotation due to the drive device. Once the yarn passes through the yarn guide using multiple air rings and a spiral path, the yarn travels from the yarn feeding device to the traveling member-ring assembly, which guides the yarn toward the yarn pickup device.

[0017] During spinning or twisting, the stress in the yarn can change, thereby altering the shape of the balloon and, in the case of machines with loops, ultimately changing the position of the traveling parts relative to the loop. The causes of these changes in yarn stress vary. Changes in yarn stress alter the geometry of the balloon.

[0018] In spinning and / or twisting machines that utilize multiple air rings, variations in stress can sometimes lead to variations in the number of air rings produced. For example, the number of air rings may change from 2 to 3 or from 3 to 4, and vice versa, from 3 to 2 or from 4 to 3.

[0019] In machines with rings, this variation in the shape or number of air rings causes the traveling parts to move uncontrollably within the rings for a period of time, resulting in multiple contact points between the traveling parts and the rings, leading to premature wear of the traveling parts and yarn breakage.

[0020] One reason for this is (measured at the left tangent end of the ring in the main view of the ring) that the angle between the yarn and the bottom of the ring relative to the bottom of the ring or the horizontal line changes from greater than 90° to less than 90°. This change causes the stress to fluctuate in an unstable manner over a period of time until the ring returns to its initial position or the number of loops changes, thus achieving equilibrium again. This new equilibrium state using a loop more or less causes the position of the traveling element to exceed 90° again, and the contact point between the traveling element and the ring is an appropriate contact point, thereby maximizing the durability of the traveling element, preventing yarn breakage and / or premature replacement of the traveling element (leading to parts wear), machine downtime (reduced efficiency), and labor costs associated with replacing the traveling element.

[0021] Instability of the air rings, or changes in the state of the air rings from one number to another, regardless of the number, usually occur under specific spinning conditions, such as the height of the guide relative to the traveler and ring assembly or relative to the yarn output point, the weight of the traveler, the diameter of the air rings generated, the diameter of the guide, the type and material of the yarn, the spinning system (combing, carding, etc.), the twist, the model of the machine, the wear condition of the traveler and rings, the height of the tube, the diameter of the ring, the height of the ring, the diameter of the tube, etc.

[0022] Therefore, to achieve optimal durability of the traveling element, it is desirable to ensure that the traveling element does not change the angle between the yarn and the bottom of the loop and maintains a stable path and position. To prevent this movement, it is necessary to prevent instability of the loops or changes or transitions in the state of one loop to another that could affect the positional stability of the traveling element.

[0023] Changing the stress on the yarn during the spinning and / or twisting process has the following consequences: the traveler moves uncontrollably in the ring for a period of time and there are multiple contact points between the traveler and the ring, resulting in premature wear of the traveler and yarn breakage.

[0024] For example, on average, when spinning staple fibers, the running gear typically lasts for about 4 to 8 days. After this period, the running gear must be replaced. The position of the running gear in the loop, as well as the friction and wear areas of the running gear, especially the friction areas between the running gear and the loop and between the running gear and the yarn, have been extensively studied.

[0025] When the traveling parts are not replaced in advance, yarn breakage begins to occur, requiring the operator to concentrate on splicing the yarn, reducing machine efficiency because the area has not been in production for a period of time, and reducing spinning quality because the yarn will have a weak area or weak point during spinning and twisting, and the strength of the weak area or weak point is about 80% of the normal strength.

[0026] Therefore, it is particularly important for the traveling component to maintain a stable position throughout the spinning process.

[0027] Finding a solution that prevents changes in the number of generated air rings and vibrations, and correspondingly prevents changes in the relative position between the traveling parts and the rings in the case of machines with rings, would be of interest.

[0028] Furthermore, in machines with rings, the yarn pickup device includes a spindle that rotates relative to a fixed structure. To properly pick up or fold the yarn onto the spindle, the traveling-ring assembly can move vertically up and down a certain distance relative to the spindle until the spinning cycle is complete. During the spinning cycle, the yarn guide can also move along with the movement related to the position of the traveling-ring assembly, and the distance between them is defined as LB (the height of multiple balloon regions). This distance LB may be constant or variable during the spinning cycle, depending on the yarn stress and / or the number of balloons, which can be changed during the spinning cycle.

[0029] A traveling element is an element that, during the spinning and / or twisting process, in addition to properly guiding the yarn to the spindle of the yarn pick-up device, allows adjustment of the yarn stress and the geometry of multiple air pockets by its mass (mg).

[0030] There are different specific ring spinning and twisting techniques that utilize multiple air rings:

[0031] On the one hand, WO2018122625 describes a spinning and twisting machine with rings that uses multiple air rings to process yarn, wherein a yarn guide located after the yarn feeding system is always co-centered with the axis of rotation of the spindle and can move in a vertical path aligned with said axis.

[0032] The system is fully effective when the machine size allows for multiple air zone regions to have significant heights, because the yarn output angle β or spinning angle from the feed system to the yarn guide makes it less than 60° relative to the vertical line and allows for the production of a suitable and stable spinning triangle region without yarn breaks.

[0033] The spinning triangle is known in the art and is defined as the triangular region of the fiber bundle leaving the output point of the yarn feeder, at which point the fiber bundle is...

[0034] Twisting is used to convert the yarn into yarn. A suitable spinning triangle is associated with a spinning angle beta, which is also suitable and does not exceed 60° relative to the vertical line.

[0035] The spinning triangle is not a key element of ring spinning twisting.

[0036] In the existing technology of air-ring spinning, in order to reduce the stress variation of the yarn, a known option is to move the position of the yarn guide, but the yarn guide is always moved to the rotation axis of the spindle of the pickup device.

[0037] The following movements of the yarn guide are known:

[0038] The i-yarn guide moves in the same direction as the bobbin guide or the traveling element-loop assembly. Therefore, the distance between the yarn guide and the traveling element-loop assembly is constant.

[0039] ii. The yarn guide moves in sync with the movement of the bobbin guide or the traveling ring assembly. For example, the yarn guide is positioned at the midpoint of the distance between the traveling ring assembly and the yarn output point of the yarn feeding device.

[0040] iii. The yarn guide does not move. The yarn guide is fixed and independent of the movement of the bobbin guide or the traveling ring assembly. The yarn guide is located at any point on the rotation axis of the spindle of the pickup device.

[0041] The iv-yarn guide moves completely independently of the bobbin guide or the movement of the traveler-ring assembly.

[0042] Sometimes, especially during ring spinning, when the yarn output point of the yarn feeder is arranged close to the yarn guide, a very pronounced spinning angle (greater than 60° relative to the vertical line) can be generated when the yarn guide moves vertically and concentrically upward relative to the rotation axis of the yarn pickup device.

[0043] Finding a solution that allows the yarn guide to move in order to maintain constant yarn stress, while keeping the spinning angle within a suitable parameter range to prevent yarn breakage, would be of interest.

[0044] At other times, when the yarn output point of the yarn feeding device is not aligned with the rotation axis of the yarn pickup device used for yarn, the yarn path between the yarn feeding device and the traveling ring assembly may collide with the yarn pickup device (such as the spindle of the yarn pickup device).

[0045] Therefore, it would be of interest to find a solution that prevents the yarn path from colliding with the yarn pickup device in the distance or area between the yarn guide and the traveling ring assembly when the yarn output point of the yarn feeding device is not aligned with the rotation axis of the yarn pickup device used for yarn.

[0046] Furthermore, as a reference to the prior art, it should be noted that the applicant is unaware of any other spinning machine or invention that exhibits the same or similar technical features as those claimed herein.

[0047] Description of the present invention

[0048] The spinning and / or twisting machine proposed in this invention is constructed as an ideal solution to address the problem of how to prevent the yarn from colliding with the yarn pickup device along the path of the yarn along the area between the yarn guide and the air ring generating device when the yarn output point of the yarn feeding device is not aligned with the rotation axis of the yarn pickup device used for yarn.

[0049] A second object of the invention relates to how to maintain a suitable spinning angle throughout the spinning or twisting process in machines that are limited by their height or the distance between the yarn outlet and the loop of the yarn feeding system, while using multiple air rings to process the yarn with the aim of keeping the yarn stress as constant as possible and thus preventing yarn breakage.

[0050] The features that make this invention possible are set forth in the final claims appended to this specification.

[0051] Specifically, like all standard machines, spinning and / or twisting machines with multiple air rings include:

[0052] - A yarn feeding device having a yarn output point that may or may not be aligned with the rotation axis of a yarn pickup device for yarn.

[0053] - A yarn pickup device for yarn, which has a rotating axis.

[0054] - A yarn guide, located between the yarn feeding device and the yarn pickup device for yarn.

[0055] - A ring-generating device, for example in the case of a machine with a ring, includes a traveling ring assembly that is vertically movable and co-centered with the rotation axis of the pickup device.

[0056] - A drive unit that is connected to a yarn pickup device for yarn.

[0057] The machine of the present invention includes a yarn guide, the inner diameter of which is larger than that of a standard yarn guide and smaller than 1.1 times the diameter generated by the air ring.

[0058] In balloon spinning and / or twisting machines, the yarn guide is an element whose primary function is to center the yarn on the rotational axis of the balloon generating device, that is, at the center of the diameter of the ring or balloon generation. This element is important because during spinning and twisting, and in the output of the yarn from the drafting unit or feed roller, it is typically separated from the rotational axis of the balloon generating device to allow space for the spinning package extraction element and / or to maintain the concept of the spinning triangle.

[0059] The inner diameter of a yarn guide with an air ring is usually close to 0. The inner diameter of a conventional yarn guide is between 2 mm and 4 mm, which is only to allow the yarn to pass through it to prevent vibration during the air ring spinning process.

[0060] Furthermore, the yarn guide is typically positioned as close to the spindle as possible, i.e., attempting to minimize the distance between the yarn guide and the balloon diameter generating device, so that the balloon diameter is as small as possible, and thus, more spinning stations can be arranged in the same machine. If the distance during balloon spinning and / or twisting increases, the balloon diameter increases due to the centripetal force of the yarn until it reaches the limit value that causes yarn breakage and / or contact with the spindle separator.

[0061] Those skilled in the art will know that changing the diameter of the yarn guide will affect the yarn hairiness; that is, the larger the yarn inner diameter is due to the vibration generated in front of the yarn guide during the balloon spinning process, the lower the yarn quality due to the increased hairiness.

[0062] Furthermore, in balloon spinning and / or twisting machines, a component called a balloon control ring is typically used. Its main function is to prevent the balloon diameter from increasing excessively when operating at high spinning speeds. When performing balloon spinning at high speeds, the balloon diameter increases due to the centripetal force of the yarn, and the yarn may break when it collides with the spinning station separator. To prevent this negative impact and to control the balloon diameter so that the yarn does not collide with the spinning station separator, a control ring is placed. The diameter of the control ring is typically larger than the diameter of the balloon generating device, with the aim of allowing the spindle of the yarn pickup device to move within the control ring. The inner diameter of the control ring is typically at least 1.1 times the diameter of the ring or the balloon generating device.

[0063] In this invention, it has been found that when multi-air-ring spinning and / or twisting is performed, the inner diameter of the yarn guide, i.e. the diameter of the hole in the yarn guide, has a substantial influence on the shape of the balanced, freely obtained air ring and on the stress of the yarn.

[0064] The inner diameter of the yarn guide, which is larger than that of the standard yarn guide, causes vibration in the region between the output point of the yarn feeding device and the yarn guide in the form of a chain or dummy air ring that absorbs stress changes in the yarn. This makes the stress on the yarn more constant, and thus the shape and number of air rings in the region between the yarn guide and the air ring diameter generating device or the traveling component-ring assembly are more constant and stable. This prevents and reduces uncontrolled movement of the traveling component that leads to premature yarn breakage.

[0065] However, the specific measurement of the inner diameter of the yarn guide depends on the geometry of the machine (diameter of the ring, diameter of the winding tube, height of the tube, distance between the upper part of the tube and the output point, distance between the yarn guide and the balloon diameter generating device, distance between the yarn output point of the yarn feeding device and the yarn guide, total distance between the yarn output point and the balloon diameter generating device, as well as the spinning angle, transition angle and splitting angle, etc.) and the type of yarn to be processed, etc.

[0066] Preferably, the inner diameter of the yarn guide is between 0.01 and 0.9 times the diameter of the air ring diameter generating device.

[0067] Preferably, the inner diameter of the yarn guide is between 6 mm and 30 mm in ring spinning.

[0068] Preferably, the spinning and / or twisting machine includes means for changing the inner diameter of the yarn guide, so that the inner diameter of the yarn guide is greater than the diameter of the standard yarn guide and less than 1.1 times the diameter generated by the air ring at any time during the spinning process.

[0069] Changing the inner diameter of the yarn guide controls the vibration generated in the area between the yarn feeding device and the yarn guide, and thus also controls the stress of the yarn in the area between the yarn guide and the balloon diameter generating device.

[0070] Therefore, for example, in order to produce 20Ne cotton yarn using multiple air rings with a machine having a ring diameter of 40mm, the optimal value is 0.3 times the diameter of 40mm, which corresponds to a yarn guide with a diameter of 12mm using three air rings.

[0071] In a preferred embodiment, multiple yarn guides may be arranged throughout the area between the yarn output point of the yarn feeding device and the balloon diameter generating device, and the yarn guides may have different diameters and be located at different positions. This embodiment allows for better control of vibrations generated in the multi-balloon area.

[0072] The inner diameter of the yarn guide can be the same or different, and can also change over time. The position of the yarn guide can also change over time.

[0073] In a preferred embodiment, when the spinning and / or twisting machine is a ring-type machine, it includes, in a novel and inventive manner, a device for moving the relative position of the yarn guide relative to the yarn output point of the yarn feeder along a path that is not aligned with the rotation axis of the pick-up device during the spinning cycle, such that the path of the yarn along the loop generation zone does not collide with the yarn pick-up device and the stress is more constant, and correspondingly, the shape and number of loops between the yarn guide and the traveler-ring assembly are more constant.

[0074] At the start of the spinning cycle, when the height-movable traveler-ring assembly is located in the lower region of the yarn pickup device for yarn, the yarn guide is typically centered on the axis of the yarn pickup device for yarn.

[0075] As the cycle progresses, that is, as the traveling element-ring assembly moves vertically upward, the yarn guide also moves upward along a path not aligned with the rotation axis of the yarn pickup device. The purpose is to maintain the distance between the yarn guide and the traveling element-ring assembly so as not to cause significant changes in the yarn stress, thus keeping the geometry of the multiple air rings stable.

[0076] At the end of the spinning cycle, when the traveling ring assembly is at the final point or above the yarn pickup device, the yarn guide is located at the upper end of its path, as far away as possible from the rotation axis of the yarn pickup device used for yarn and closer to the yarn output point of the yarn feeder.

[0077] The misalignment of the yarn guide relative to the rotation axis of the yarn pickup device results in a multi-air ring structure that is not aligned with the rotation axis of the yarn pickup device. However, the relative positions of the yarn guide and the traveling ring assembly relative to the yarn output point of the yarn feeding device ensure that the path of the yarn along the air ring generation area does not collide with the yarn pickup device.

[0078] Meanwhile, the misalignment of the yarn guide preferably allows the spinning angle to remain less than 60° relative to the vertical line throughout the entire spinning cycle, and then stabilizes the process. This would not be possible if the yarn guide were always aligned with the rotation axis of the yarn pickup device and moved vertically.

[0079] The spinning angle is defined as the angle between the straight line at the yarn output point and the upper end of the path of the yarn guide, and the vertical line at any given moment in the spinning cycle.

[0080] The path of the yarn guide from the lower end point to the upper end point can be straight or not, that is, it can be a combination of straight and curved movement.

[0081] In a preferred embodiment, the yarn guide is not oriented horizontally.

[0082] In another preferred embodiment, the orientation of the yarn guide can be changed relative to the horizontal position.

[0083] In a preferred embodiment, the machine includes a programmable control unit for changing the position of the yarn guide relative to the traveler-loop assembly based on the yarn stress and / or the position of the traveler-loop assembly, thereby maintaining the yarn stress as constant as possible, and correspondingly, maintaining the number of loops as constant as possible. In this embodiment, the machine may include means for understanding the yarn stress and / or means for understanding the position of the traveler-loop assembly.

[0084] The machine already described can perform a method for spinning and / or twisting yarn, the method comprising the step of moving the relative position of the yarn guide relative to the yarn output point of the yarn feeder along a path that is not aligned with the axis of rotation of the yarn pickup device during the spinning cycle, such that the path of the yarn along the loop generation area does not collide with the yarn pickup device, and the stress is more constant, and correspondingly, the shape and number of loops between the yarn guide and the loop diameter generation device are more constant.

[0085] Preferably, the method for spinning and / or twisting yarn may include one or all of the following steps:

[0086] - Move the yarn guide along a straight or non-straight path.

[0087] - The yarn guide is moved along a path having a first segment and a second segment, in which the yarn guide is moved to the rotation axis of the yarn pickup device for yarn, and in the second segment, the yarn guide is moved away from the rotation axis of the yarn pickup device.

[0088] - Change the orientation of the yarn guide relative to the horizontal line at points along its path.

[0089] -Based on the yarn stress and / or the position of the traveler-loop assembly, the position of the yarn guide relative to the traveler-loop assembly is automatically changed by a programmable control device, thereby maintaining the yarn stress as constant as possible, and correspondingly, maintaining the number of loops as constant as possible.

[0090] Standard spinning and / or twisting machines can also be modified to perform the above methods.

[0091] For standard spinning and / or twisting machines that perform the above methods, the following steps will be performed:

[0092] -Remove the original yarn guide.

[0093] - Remove the airbag limiter.

[0094] - Combined with a system for moving the yarn guide, this system allows the yarn guide to be moved relative to the yarn output point of the yarn feeder along a path that is not aligned with the rotation axis of the yarn pickup device during the spinning cycle. This prevents the yarn from colliding with the yarn pickup device along the path of the loop generation zone, resulting in more constant stress. Consequently, the shape and number of loops between the yarn guide and the loop diameter generation device are also more constant.

[0095] Optionally, all or some of the following steps may be performed:

[0096] - Install a device for changing the orientation of the yarn guide relative to the horizontal line.

[0097] - Install devices for understanding yarn stress and / or devices for understanding the position of the traveling element-ring assembly.

[0098] - Install a programmable control device: This programmable control device is used to change the position of the yarn guide relative to the traveler-loop assembly based on the yarn stress and / or the position of the traveler-loop assembly, thereby maintaining the yarn stress as constant as possible, and correspondingly, maintaining the number of loops as constant as possible. Attached Figure Description

[0099] To complete the description provided herein and to help to make the features of the invention more readily understood, this specification is accompanied by drawings that form an integral part of the specification, which are shown in an illustrative rather than limiting manner as follows:

[0100] Figure 1-A A schematic diagram depicting a spinning and / or twisting machine is shown, having a yarn guide and a traveling member-loop assembly. The yarn guide is located at the lower end of its straight path and is not aligned with the rotation axis of the pickup device. The traveling member-loop assembly is located in its minimum initial position.

[0101] Figure 1-B The illustration depicts Figure 1-A The schematic diagram of the spinning and / or twisting machine shown in this case has the yarn guide located at the upper end of its straight path and not aligned with the axis of rotation, and the loop located at the maximum end position.

[0102] Figure 2-A A schematic diagram depicting a spinning and / or twisting machine is shown again, in which the yarn guide is located at the lower end of its straight path and is not aligned with the rotation axis of the pickup device, and the loop is in its minimum initial position, in which case the yarn guide also has a tilt angle of a few degrees relative to the horizontal line.

[0103] Figure 2-B The illustration depicts Figure 2-B The schematic diagram of the spinning and / or twisting machine shown depicts the yarn guide located at the upper end of its straight path and not aligned with the rotation axis of the pickup device, with the loop at the maximum end position and the yarn guide having a tilt angle of a few degrees relative to the horizontal line.

[0104] Figure 3-A The same schematic diagram depicts a spinning and / or twisting machine, in which the yarn guide is located at the lower end of its non-linear path and is not aligned with the rotation axis of the yarn pickup device, and the loop is in its minimum initial position.

[0105] Figure 3-B The illustration depicts Figure 3-B The diagram shows a spinning and / or twisting machine, but in this case, the yarn guide is located at the upper end of its non-linear path and is not aligned with the rotation axis of the yarn pickup device, and the loop is located at the maximum end position.

[0106] Figure 4 A front view of another schematic depiction of a spinning and / or twisting machine with more than one air ring according to the prior art is shown, in which the main parts and components of the spinning and / or twisting machine and their associated arrangement can be seen.

[0107] Figure 5 It shows something similar to Figure 4 The schematic diagram shown illustrates a case where the yarn guide has a diameter larger than that of a standard yarn guide and an inner diameter 1.1 times smaller than the diameter generated by the air ring, which results in vibration between the yarn feeding device and the yarn guide.

[0108] Figure 6 It shows something similar to Figure 4 and Figure 5 The schematic diagrams shown here, in this example, depict multiple yarn guides with an inner diameter larger than that of a standard yarn guide and smaller than 1.1 times the diameter generated by the air ring. This results in different vibration zones between the yarn feeding device and the yarn guides.

[0109] Figure 7 It shows something similar to Figure 6 The schematic diagram shown illustrates that, in this example, the walking stabilizer element is located inside the spindle of the yarn pickup device.

[0110] The number of air rings (B) within the region (LB) depicted in the attached figure is not limited to two air rings.

[0111] Preferred embodiments of the present invention

[0112] With reference to the accompanying drawings, and according to the reference numerals used in the following list, different embodiments of the invention can be observed in the schematic depiction of spinning and / or twisting machines:

[0113] 1: Yarn feeding device.

[0114] 2: pipe.

[0115] 3: Fiber structure.

[0116] 4: Spindle or yarn pickup device.

[0117] 5: Walking component - ring assembly.

[0118] 6: Ring frame.

[0119] 8: Yarn guide, 8': Intermediate yarn guide, 8”: Upper yarn guide.

[0120] 9: Walking component stabilizer element.

[0121] 10: Walking parts.

[0122] 12: Yarn.

[0123] Y1: Yarn output point of the yarn feeding device.

[0124] V: The axis of rotation of the spindle or yarn pickup device and the device for generating the diameter of the air ring.

[0125] V': The axis of the yarn guide that is eccentric relative to axis V.

[0126] T: The path of the yarn guide between the lower end point (X) and the upper end point (Y).

[0127] X: The lower endpoint of the yarn guide path.

[0128] Y: The upper endpoint of the yarn guide path.

[0129] Z: The point of minimum initial position of the traveling component-ring assembly.

[0130] W: The point at the maximum end position of the traveling component-ring assembly.

[0131] B: Air ring.

[0132] B': Yarn vibration or false air ring.

[0133] DB: The diameter of the gas ring.

[0134] DB': Diameter of the walking stabilizer element (9).

[0135] LB: Lower air ring generation area between the yarn guide and the yarn pickup device or air ring diameter generating device.

[0136] LC: The upper area between the yarn output point of the yarn feeding device and the yarn guide.

[0137] LA: The area near the ring between the running component stabilizer element and the running component-ring assembly.

[0138] LT: The total area between the lower and upper regions of the yarn output point of the yarn feeding device and the pickup device.

[0139] α: The tilt angle of the yarn guide relative to the horizontal line.

[0140] β: The spinning angle of the line between points (Y1) and (Y) relative to the vertical line.

[0141] For example, a spinning and / or twisting machine with rings is depicted. Figure 4As seen in the diagram, the fiber structure (3) or roving is fed to the drafting device and drafted as it passes through the drafting device. In this embodiment, the feeding device (1) is considered the drafting device. The fiber structure (3) or roving leaves the feeding device (1) through the output point (Y1) and is guided by the yarn guide (8) to the moving traveler-ring assembly (5) (air ring generating device (DB)) typically included in the ring frame (6). Between the yarn guide (8) and the traveler-ring assembly (5), the fiber structure (3) or roving generates at least two air rings (B), twists the fiber structure, and produces yarn (12). Finally, after passing through the traveler-ring assembly (5), the yarn (12) is wound onto a yarn pickup device, such as a tube (2) connected to a spinning spindle (4) rotating about a generally vertical axis (V).

[0142] The purpose of this invention is also applicable to other spinning and / or twisting machines that utilize air rings, particularly cable twisting machines, 2x1 or TFO doubling twisting machines, and rolling mills. All spinning and / or twisting machines that utilize air rings include an air ring generating device (DB) and a yarn guide (8).

[0143] The purpose of this invention is to use a yarn guide (8) instead of a standard yarn guide in spinning and / or twisting machines that utilize multiple air rings: the yarn guide has a diameter greater than that of the standard yarn guide (8) and an inner diameter of the yarn guide (8) that is less than 1.1 times the diameter (DB) produced.

[0144] Using a yarn guide with an inner diameter that is larger than that of a standard yarn guide (8) and smaller than the diameter (DB) of the air ring produced by 1.1 times allows the creation of two zones with different functions.

[0145] The first region or upper region (LC) is the area between the yarn output point (Y1) of the yarn feeding device (1) and the yarn guide (8), where a vibration or dummy air ring (B') is generated to absorb the stress difference during spinning by continuous collapse, thereby making the air ring (B) of the second region more stable.

[0146] The second or lower region (LB) is the area between the yarn guide (8) and the balloon diameter generating device (DB), where multiple stable balloons (B) are generated.

[0147] The selection of the inner diameter of the yarn guide (8) depends on the stress and stability generated in the system during the spinning package formation time.

[0148] In a preferred embodiment, the inner diameter of the yarn guide (8) is between 0.01 and 0.9 times the diameter of the balloon diameter generating device (DB).

[0149] In another preferred embodiment, the inner diameter of the yarn guide (8) is at least 6 mm and at most 30 mm.

[0150] exist Figure 6 In the alternative embodiment shown, instead of a single area with a dummy air ring (B'), multiple areas with a dummy air ring (B') exist by placing multiple yarn guides (referred to as lower yarn guide (8), middle yarn guide (8'), and upper yarn guide (8”)). The multiple yarn guides have a diameter larger than that of the standard yarn guide (8) and an inner diameter of the yarn guide (8) that is 1.1 times smaller than the diameter (DB) generated by the air ring. This allows for a more precise adjustment of the system for the same purpose by utilizing the variables or invariants in each yarn guide (8, 8', 8”).

[0151] In a preferred embodiment, the spinning and / or twisting machine includes a device for changing the inner diameter of the yarn guide (8) during the spinning and / or twisting process, so that the inner diameter of the yarn guide is greater than the diameter of the standard yarn guide (8) and less than 1.1 times the diameter of the balloon diameter generator (DB) at any time during the spinning process.

[0152] In a preferred embodiment, such as Figure 7 As seen in the example, the spinning and / or twisting machine includes a traveling element stabilizer element (9) located within the length of the tube (2) of the yarn pickup device. For this purpose, the inner diameter of the traveling element stabilizer element (9) needs to be larger than the diameter of the tube (2) of the pickup device and smaller than the diameter generator (DB), preferably smaller than the diameter (DB). The traveling element stabilizer element (9) can be considered as a yarn guide because the diameter (DB) is less than 1.1.

[0153] Because the walking component stabilizer element (9) is positioned close to the cylinder diameter generating device (DB), a region is generated near the ring (LA) between the walking component stabilizer element (9) and the walking component (10).

[0154] As described above, the walking component stabilizer element (9) has the same mobility as the walking component-ring assembly (5).

[0155] The inner diameter of the walking stabilizer element (9) can be changed during the spinning process.

[0156] In this embodiment, the region (LB) that generates multiple stabilizing air rings is the region located between the walking stabilizer element (9) and the yarn guide (8).

[0157] In this case, a false air ring (B') is generated in the area near the walking element (LA). The false air ring (B') absorbs the stress difference during spinning, thereby making the air ring (B) in the upper area (LB) between the walking element stabilizer element (9) and the upper yarn guide (8) more stable.

[0158] This embodiment (such as) Figure 7 Another advantage of the (shown) is the reduction in the diameter (DB) of the air ring generated from the region (LB) where multiple air rings are generated. In other words, in this embodiment, the diameter of the air ring generated is the diameter (DB') of the running gear stabilizer element (9). The reduction in the diameter of the air ring generated allows multiple air rings to be generated through a region (LB) of smaller length.

[0159] Another advantage of this embodiment is the reduction in the diameter (DB) of the air ring generated from the region (LB) where multiple air rings are generated. In other words, in this embodiment, the diameter of the air ring generated is the diameter (DB') of the running gear stabilizer element (9). The reduction in the diameter of the air ring generated allows multiple air rings to be generated through a region (LB) of smaller length.

[0160] In a preferred embodiment, such as Figure 1-A , Figure 1-B , Figure 2-A , Figure 2-B , Figure 3-A and Figure 3-B As shown, the fiber structure (3) or roving is fed to the drafting device and drafted as it passes through the drafting device. In this embodiment, the feeding device (1) is considered the drafting device. The fiber structure (3) or roving leaves the feeding device (1) through the output point (Y1) and is guided by the yarn guide (8) to the moving traveler-ring assembly (5), which is typically included in the ring frame (6). Between the yarn guide (8) and the traveler-ring assembly (5), the fiber structure (3) or roving generates at least two air rings (B), thereby twisting the fiber structure and producing yarn (12). Finally, after passing through the traveler-ring assembly (5), the yarn (12) is wound onto a yarn pickup device, such as a tube (2) connected to a spinning spindle (4) rotating about a generally vertical axis (V).

[0161] In a preferred embodiment, in a spinning and / or twisting machine with a ring, the yarn guide (8) follows a path (T) located between the lower end point (X) and the upper end point (Y) that does not coincide with the axis (V) of the pickup device.

[0162] To prevent the yarn from colliding with the picking device for yarn (3) along the path of the multi-air-ring generation area (LB) located between the yarn guide (8) and the yarn picking device, and to prevent the spinning angle (β) (i.e., the yarn output angle (Y1)) relative to the vertical or rotating axis (V) of the picking device from increasing excessively when the yarn output point (Y1) of the yarn feeding device (1) is not aligned with the rotating axis (V) of the yarn picking device, the path (T) of the yarn guide (8) will not be completely aligned with the rotating axis (V) of the spindle (4) or the yarn picking device.

[0163] Specifically, Figures 1A and 1B show the positions of the traveling member-ring assembly (5) and the yarn guide (8) at the beginning of the spinning cycle (points Z and X, respectively) and at the end of the spinning cycle (points W and Y, respectively). In this case, the path (T) of the yarn guide (8) is an inclined straight line relative to the rotation axis (V) of the pick-up device or spindle (4).

[0164] Specifically, Figures 2A and 2B show the positions of the traveling ring assembly (5) and the yarn guide (8) at the beginning of the spinning cycle (points Z and X, respectively) and at the end of the spinning cycle (points W and Y, respectively), and in this case, the path (T) of the yarn guide (8) is a straight line inclined relative to the axis of rotation (V) of the spindle (4). The difference from the machine depicted in Figures 1A and 1B is that the machine depicted in Figures 2A and 2B includes a yarn guide (8) that is inclined at an angle (α) of a certain degree relative to the horizontal position, so that it can improve orientation at a position close to the upper endpoint (Y) of the output point (Y1).

[0165] Furthermore, specifically, Figures 3A and 3B show the positions of the traveling member-loop assembly (5) and the yarn guide (8) at the beginning of the spinning cycle (points Z and X, respectively) and at the end of the spinning cycle (points W and Y, respectively), and in this case, the path (T) of the yarn guide (8) is non-linear. The path (T) of the yarn guide (8) is inclined at an angle (α) of a certain degree relative to the horizontal position, which causes the yarn guide (8) to tilt at its upper end point (Y) and improves its orientation.

[0166] In a preferred embodiment, according to Figures 3A and 3B, the initial portion of the path (T) of the yarn guide (8) is straight and centered on the axis (V), and allows the yarn guide (8) to move sufficiently vertically upward before it begins to eccentricate relative to the axis (V) through the final portion of the curved path (T) to prevent the yarn from contacting the yarn pickup tube (2).

[0167] The path (T) depicted in the accompanying drawings must be drawn on the yarn guide (8), not at the opposite end of the actuator that includes the yarn guide. This point was chosen to avoid making the drawings more difficult to understand. Therefore, if the angle (α) changes during the spinning process, the path (T) may not coincide with the path depicted in the accompanying drawings.

[0168] Optionally, the yarn guide (8) is not oriented horizontally.

[0169] Optionally, the spinning and / or twisting machine includes means for changing the orientation of the yarn guide (8) relative to the horizontal position.

[0170] Preferably, in one embodiment, as the yarn guide (8) moves along the path (T) from the lower end point (X) to the upper end point (Y), the yarn guide (8) is tilted relative to the horizontal line at an angle (α) ranging from -45° to +45°.

[0171] The methods for obtaining non-linear movement paths are not detailed in this application, as devices for moving machine parts along said paths are well known in the art.

[0172] This stress in the yarn, the position of the traveler, or the shape of the loop can be altered in three ways during the spinning and / or twisting process:

[0173] a) Change the yarn output point (Y1) of the yarn feeding device (1);

[0174] b) Change the diameter of the yarn guide (8);

[0175] c) Combining method a) and method b).

[0176] By changing one variable, another variable, or both variables simultaneously, the stress in the yarn in the system is altered by increasing or decreasing it, thereby causing a change in the state of the gas pocket or eliminating the transition between gas pockets.

[0177] This technique also allows for minimizing the transition time of gas sphere state changes by altering the system's stress, enabling gas sphere changes to occur immediately due to the provided high stress.

[0178] Therefore, as described above, the yarn passing through the walking member always has an angle greater than 90° relative to the bottom of the ring, and the walking member operates in a stable position, rubbing against the ring in the common contact area.

[0179] This reduces premature wear of the running parts and yarn breakage.

[0180] This new way of changing and adjusting the atmosphere can be done in three ways:

[0181] -In real time;

[0182] - Through prior testing;

[0183] - By setting previously obtained parameters for a specific spindle.

[0184] The real-time execution of changes includes: capturing yarn stress parameters and / or the position of the traveling element and / or the shape of the gasket obtained by sensors, using any system or optical device, electrical device, electronic device, mechanical device, weighing sensor, etc. that provides digital signals, analog signals, mechanical signals or any type of signal that can be processed, and using any type of mechanism (PLC, pneumatic, hydraulic, mechanical, electrical, electronic, magnetic, etc.); and changing the position of the yarn guide (8) relative to the yarn feeding device (1) at the yarn output point (Y1) and / or changing the inner diameter of the yarn guide (8) in real time so that the changed stress maintains the shape of the gasket constant.

[0185] One way to change the position of the yarn guide (8) relative to the yarn output point (Y1) of the yarn feeding device (1) is by means of a gear motor, a PLC screen and specific software that converts the signal into movement.

[0186] In this way, stress is adjusted in real time when interference or changes in the state of the gas cylinder are detected, thereby preventing premature wear of the running gear.

[0187] The system can also be used to perform gas cylinder state changes in a very rapid manner without subjecting the running gear to prolonged disturbances (which would lead to premature wear of the running gear).

[0188] Through prior testing, the position of the yarn output point (Y1) of the yarn guide (8) relative to the yarn feeding device (1) and / or the inner diameter of the yarn guide (8) can be determined based on the position of the traveling member-ring assembly (5). This learning can be programmed in a programmable controller (not depicted) so that during the spinning cycle, the position of the yarn output point (Y1) of the yarn guide (8) relative to the yarn feeding device (1) can remain constant, increase, or decrease as appropriate, and / or the inner diameter of the yarn guide (8) can be changed based on the position of the traveling member-ring assembly (5) relative to the yarn output point (Y1) of the yarn feeding device (1).

[0189] In other systems, these adjustments can be made using electromechanical movement operated by software and PLC, as well as stress sensors or optical sensors that provide parameters for each position.

[0190] The system allows adjustment of the distance and / or inner diameter of the yarn guide for each variable affecting stress and the shape of the loop. These variables include fineness, twist, material (100% cotton, PES, PA, blends, etc.), spinning process (combing, carding, etc.), loop diameter, tube height, machine model, machine brand, compact system, and a large number of other variables.

[0191] When the exact parameters of spinning are known, the lower region (LB) and upper region (LC) can be set and configured according to the specific traveler-ring diameter, and the inner diameter of the yarn guide can be preset (8).

[0192] Since the nature of the invention and the manner in which it is implemented have been fully described, it is considered that no extension of the explanation of the invention is necessary for any person skilled in the art to understand the scope of the invention and the advantages derived therefrom.

Claims

1. A spinning and / or twisting machine, said spinning and / or twisting machine operating using a plurality of air rings, said spinning and / or twisting machine comprising: - Yarn feeding device (1) - A yarn picking device (4) for yarn, which has a rotating axis (V). - Yarn guide (8), which is located between the yarn feeding device (1) and the yarn picking device (4) for yarn, -A device for generating the diameter of the air ring, including a traveling component -a ring assembly (5). - A drive unit connected to the yarn pickup device (4) for yarn. The inner diameter of the yarn guide (8) is between 0.01 and 0.9 times the diameter (DB) of the air ring diameter generating device. The spinning and / or twisting machine further includes a device for changing the inner diameter of the yarn guide (8) during the spinning and / or twisting process, so that the inner diameter of the yarn guide (8) is between 0.01 and 0.9 times the diameter (DB) of the balloon diameter generating device at any time during the spinning process. The spinning and / or twisting machine includes a device for understanding the stress of the yarn and / or the position of the traveling member and / or the shape of the air ring, and a programmable control device that, based on the stress of the yarn and / or other parameters of the spinning and / or twisting machine, changes the inner diameter of the yarn guide (8) in real time by means of a device that changes the inner diameter of the yarn guide (8).

2. The spinning and / or twisting machine according to claim 1, characterized in that, The inner diameter of the yarn guide (8) is at least 3 mm.

3. The spinning and / or twisting machine according to claim 1, characterized in that, The spinning and / or twisting machine includes multiple yarn guides (8, 8', 8'').

4. The spinning and / or twisting machine according to claim 1, characterized in that, The spinning and / or twisting machine includes a walking stabilizer element (9) located within the length of the tube (2) of the yarn pickup device (4) and having a diameter greater than the tube (2) and less than 1.1 times the diameter (DB) of the balloon diameter generating device.

5. The spinning and / or twisting machine according to any one of claims 1 to 4, characterized in that, The spinning and / or twisting machine is a machine with rings and includes: • A yarn feeding device (1) having a yarn output point (Y1) that is not aligned with the rotation axis (V) of the yarn picking device for yarn (3). • A ring diameter generating device, comprising a vertically movable traveling member-ring assembly (5) that is co-centered with the axis (V); • A device for moving the yarn guide (8) relative to the yarn output point (Y1) of the yarn feeding device (1) along a path (T) not aligned with the axis of rotation (V) during the spinning cycle, such that the spinning angle (β) is always less than 60° relative to the vertical line, and such that the path of the yarn forming at least two air rings along the multi-air ring generation zone (LB) does not collide with the pick-up device for the yarn (3), so as to stabilize the spinning process.

6. The spinning and / or twisting machine according to claim 5, characterized in that, The path (T) of the yarn guide (8) is a straight line.

7. The spinning and / or twisting machine according to claim 5, characterized in that, The path (T) of the yarn guide (8) is non-linear.

8. The spinning and / or twisting machine according to claim 5, characterized in that, The path (T) of the yarn guide (8) has a first segment that moves the yarn guide (8) onto the rotation axis (V) of the yarn pickup device for yarn (3), and a second segment that moves the yarn guide (8) away from the rotation axis (V) of the yarn pickup device for yarn (3).

9. The spinning and / or twisting machine according to claim 5, characterized in that, The yarn guide (8) is not oriented horizontally.

10. The spinning and / or twisting machine according to claim 5, characterized in that, The spinning and / or twisting machine includes means for changing the orientation of the yarn guide (8) relative to the horizontal position.

11. The spinning and / or twisting machine according to claim 5, characterized in that, The spinning and / or twisting machine includes: • A means for determining the position of the traveling member-ring assembly (5) relative to the yarn output point (Y1) of the yarn feeding device (1) and / or a means for determining the stress of the yarn, and • A programmable control device that changes the position of the yarn guide (8) relative to the traveler-loop assembly (5) based on the stress of the yarn and / or the position of the traveler-loop assembly (5).

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