• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Yarn unwinding and winding machine at a speed greater than 1 m/s and without twisting that includes; a rotating yarn delivery means comprising a yarn delivery spool and a motor (M1), a rotating yarn collection means comprising, a yarn take-up spool, a reciprocating means defining the geometry of the spool, and a motor (M2), where at least the yarn delivery means or the yarn collection means comprises a torque limiting means with a torque limiting value (Zmax) and always causing a sliding speed (Vdes), understood as the difference in angular speed, the angular speed of the motor shaft associated with the torque limiting means and the angular speed of the coil associated with the torque limiting means, in such a way that it is possible to establish the thread tension (Twork) measured between the reciprocating means and the take-up spool during the transformation process and consequently to be able to maintain said thread tension (Twork) below a maximum tension (tmax) and above a minimum tension (tmin) by modifying only the sliding speed (Vdes). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2784920A1
    申请号:ES202030104
    申请日:2020-02-10
    公开日:2020-10-02
    发明作者:Llongueras Jordi Galan；Llongueras Albert Galan
    申请人:Twistperfect SL；Casumconi SL；
    IPC主号:
    专利说明:

    [0002] MACHINE AND PROCESS FOR UNWINDING AND WINDING THREAD AT A SPEED GREATER THAN 1M / S
    [0004] OBJECT OF THE INVENTION
    [0006] The object of the present application is to register a machine and a yarn unwinding and winding process at a speed greater than 1 m / s, controlling the yarn tensions that occur in the unwinding and winding process and thus avoiding breakage of the yarn. thread.
    [0008] SCOPE
    [0010] The field of application of the present invention is framed in the textile industry sector of any type of yarns or fibers, both natural and synthetic, especially delicate yarns such as fiberglass yarns.
    [0012] BACKGROUND OF THE INVENTION
    [0014] In the textile sector, yarn unwinding and winding machines are known.
    [0016] For example, in the fiberglass sector, the glass melted in the furnace is extruded into multiple filaments of a few microns in diameter that are grouped together to form a fiberglass thread that is wound by means of special winders for this application on some flexible paper-cardboard containers or joints, mostly with an inside diameter of 300 mm and a length of 300 mm, commonly known in English as "cakes".
    [0017] Said primary fiberglass yarn is classified by its thickness or yarn count according to the amount of grouped filaments and is measured in units of thousands of meters per kilogram (Metric Number, Nm) or more common in the sector grams per 1000m of thread (Tex).
    [0019] This primary container or "cake" with the fiberglass wound from the oven must be transformed into a secondary container with a bottle-shaped format in plastic reels, called "bottles" in order to be marketed.
    [0021] Currently, this transformation from the primary container or "cake" to the secondary container or "bottle" is carried out with multi-position ring twisting machines where the "cake" acts as a means of delivery of motorized yarn and the "bottle" acts as means of Also motorized yarn collection in order to minimize the friction of the fiber during the process and not to damage the glass filaments that are very sensitive to friction.
    [0023] Said machines take advantage of the operating principle of ring twisting to change the format from "cake" to "bottle", at the same time conferring a low degree of twist to the yarn, therefore said transformation or unwinding / winding of "cake" is carried out. "bottle" applying certain twists per meter to the yarn, mostly between 10 to 40 tpm or twists per meter according to the needs to be produced.
    [0025] The problem with such twisting machines is that they are not capable of transforming or unwinding / winding with 0 tpm twist, that is, the yarn keeps the fibers in parallel and therefore they cannot be used to supply the industry that needs fiber yarn. twist-free glass for certain applications.
    [0027] Due to the geometry of the "cake" and "bobbin" bobbins, during the unwinding and winding process, the thread tension undergoes changes of sudden tension. The change in thread tension is caused by the relative position of the thread exit point with respect to the bobbin that delivers the thread or by the relative position of the thread entry point with respect to the bobbin that takes up the thread. For example:
    [0029] • The bobbins are uneven and therefore, when the thread exit point is at a bobbin point with a diameter smaller than the rest, the thread exit speed is slower and causes an overvoltage in the thread.
    [0031] • On the other hand, when the thread exit point is at a point on the bobbin with a diameter greater than the rest, the exit speed of the thread is higher and causes a low tension in the thread.
    [0033] In order to avoid yarn breaks caused by a sudden change in yarn tension, twisting machines regulate the yarn tension basically through the slider, and apply a sufficiently regular tension to the yarn within a range of tension. acceptable throughout the process.
    [0035] However, these twisting machines, although they work above 1 m / s, always apply twist to the yarn.
    [0037] Other solutions to yarn breakage caused by a sudden change in yarn tension are the incorporation of a mechanism that keeps the yarn tension stable, such as a roller with a spring located between the yarn delivery means or "cake" and the yarn or "bottle" collecting means. However, this solution is generally not sensitive enough to absorb voltage changes below a threshold and at operating speeds greater than 1 m / s.
    [0039] Although the fiberglass yarn in "bottle" format and without twisting is an increasingly demanded need by certain consumers, it does not exist Today a machine that transforms a fiberglass "cake" into a "bottle", with the fibers in parallel, that is, without twisting, and at a certain speed or productivity that makes said transformation profitable without altering or deteriorating quality of the thread.
    [0041] As a summary of the previous explanation, there are certain difficulties of said transformation from "cake" to "bottle" without twisting in fiberglass, which are:
    [0043] • both the “cake” and the “bottle” formats constantly and rapidly vary the unwinding and winding diameters (as the cake empties at the same time as the bottle is filling), which makes it difficult to regulate the stress instantaneously at high transformation rates.
    [0044] • The tension on the wire must be at very low values of between 2 cN to 200 cN of direct tension on the wire measured just before the winding input to obtain adequate wire quality, bobbin hardness and not to damage it.
    [0045] • the combination of the two previous points with a high transformation speed greater than 1m / sec is also an important element since the threads are certainly fine and it would not be profitable to process at speeds lower than approximately 1m / sec
    [0046] Certainly at slow speeds lower than 1m / sec, such transformation could be possible with the current state of the art, but the resulting machine would not be profitable since it would have a very high return on investment and not accepted by the market. Therefore, there remains a certain technological space to transform or unwind / wind fiberglass yarn without twisting from cake to bottle and at high speeds that make said transformation profitable without altering or deteriorating the quality of the yarn.
    [0047] The machine and the process of unwinding and winding yarn without twisting and at a speed greater than 1m / s object of the invention is not only useful for fiberglass yarn, but it is also useful for any type of yarn or natural textile fibers or synthetic
    [0049] EXPLANATION OF THE INVENTION
    [0051] The device that the invention proposes is configured as a novelty within its field of application, the characterizing details that distinguish it are conveniently collected in the final claims that accompany this specification.
    [0053] As a result of the aforementioned technological need, a machine has been developed in the present invention for unwinding and winding, that is, transforming yarn at high speed (speed greater than 1 m / s), for example fiberglass yarn from cake to bottle without applying twist to the thread. Transforming the yarn means unwinding the yarn from a yarn delivery spool, for example a first spool or "cake" and, in line, winding the yarn on a yarn collection spool, for example on a second spool in bottle format , through a reciprocating or folding system, at a certain speed and thread tension.
    [0055] The first object of the patent is a machine for unwinding and winding the yarn at a speed greater than 1m / s and without applying any torque to the yarn, which comprises
    [0057] • a rotating yarn delivery means comprising a yarn delivery spool and a motor (M1)
    [0058] • a rotating yarn collecting means comprising a yarn collecting spool, reciprocating means defining the spool geometry, and a motor (M2)
    [0060] where at least the yarn delivery means or the yarn collection means comprises a torque limiting means with a torque limiting value (Zmax) and where there is always a sliding speed (Vdes), understood as the difference in absolute value of angular speed the angular speed of the motor shaft associated with the torque limiting means and the angular speed of the coil associated with the torque limiting means, in such a way that it is possible to establish the thread tension (Twork) measured between the means of reciprocating and the take-up spool during the transformation process and consequently to be able to maintain said thread tension (Twork) below a maximum tension (tmax) and above a minimum tension (tmin) by modifying only the sliding speed (Vdes ).
    [0062] In a preferred embodiment, the torque limiting value (Zmax) is between 0.001 N * m to 0.15N * m in such a way that the thread tension (Twork) is not greatly affected when unexpected changes appear in the sliding speed. (You).
    [0064] In a preferred embodiment, the rotary torque limiting means between the motor and the yarn delivery means or the yarn collection means form part of the motor itself in such a way that the motor's output shaft itself slides from a certain value of electrical torque applied to the motor.
    [0066] In a preferred embodiment, the torque limiting means is at least one bearing located between the motor shaft and the coil with a torque limiting value (Z) caused by friction between the inner and outer ring of the bearing.
    [0067] In an alternative embodiment when a higher torque limiting value is needed, the torque limiting means are at least two bearings located between the motor shaft and the coil, the bearings with a determined axial preload relative to each other. By tightening the two inner rings of the bearings against the balls, the friction between both parts increases and the torque limiting value increases.
    [0069] Preferably, the machine comprises means for controlling the speed of the motors of the yarn delivery means and of the yarn collection means, consequently of the sliding speed (Vdes) and of the yarn tension (Twork) in such a way that it is possible to adapt the sliding speed (Vdes) to the different situations that cause an increase in the thread tension (Twork) in order to keep said thread tension below a maximum tension (tmax) and above a minimum voltage (tmin).
    [0071] As explained above, the yarn tension depends on the geometry, that is to say the folding, the yarn delivery means and the yarn collection means.
    [0073] In this sense, preferably, the control means comprise means for detecting the instantaneous unwinding and winding diameters of the yarn delivery spool and / or of the yarn collection spool.
    [0075] The means for capturing the instantaneous unwinding and winding diameters of the yarn delivery spool and / or the yarn take-up spool are preferably distance sensors or it is a computer program that calculates the instantaneous unwinding and winding diameters of the yarn delivery spool and / or the yarn take-up spool based on the initial geometry of the yarn delivery spool and based on the geometry of the yarn take-up spool along the machine working time.
    [0077] The inertia of the yarn delivery spool, as well as the inertia of the yarn take-up spool affect the yarn tension (Twork) so it is interesting to compensate the value of the sliding speed (Vdes) to maintain the tension (Twork) to the thread during the transformation process.
    [0079] There are moments during the unwinding / winding cycle in which sudden changes in diameter occur both in the unwinding reel and in the winding reel with the consequent variation in the linear speed of the thread that this implies and which is reflected in the operation as a vibration composed of a pull and a relaxation on the thread and very fast in time at high unwinding / winding speeds.
    [0080] To absorb these vibrations, the equipment preferably comprises anti-vibration means of the yarn caused by a rise in the yarn tension (Twork) followed by a rapid reduction in the tension (Twork).
    [0082] In a preferred embodiment, the anti-vibration means of the yarn are mechanical and can absorb the increase and / or reduction of the yarn length between the yarn delivery means and the yarn collection means, maintaining the yarn tension (Twork) between the maximum voltage (tmax) programmed and the minimum voltage (tmin).
    [0084] In an even more preferred embodiment, the anti-vibration means comprise a free rotating guide roller attached to the end of a flexible rod with a section between 1mm2 to 40mm 2 fixed to the machine with a distance P of between 200mm to 1500mm and allowing it to flex at a wire tension of between 2 to 200 cN and absorb a wire length of 50 to 1500 mm of wire and with a tension stroke Tmax. 300cN thread
    [0085] Another object of the patent is the process of unwinding and winding of yarn at a speed greater than 1m / s and without twisting applicable with a machine like those described above that comprises a stage in which modifying the sliding speed (Vdes), for example
    [0086] When an increase or decrease in the thread tension (Twork) is foreseen, the thread tension (Twork) can be adjusted in order to keep the thread tension (Twork) below a maximum tension (tmax) and above of a minimum voltage (tmin).
    [0088] In a preferred embodiment, the modification of the sliding speed is automatically controlled by control means that, depending on variables, such as instantaneous unwinding and winding diameters of the yarn delivery spool and / or the take-up spool of the thread and the weight of the bobbins decide the sliding speed to maintain the thread tension (Twork) between the maximum tension (tmax) and the minimum tension (tmin
    [0090] In a preferred embodiment, the process of unwinding and winding of yarn at a speed greater than 1m / s and without twisting also comprises the following steps in this order.
    [0092] • Keep the wire delivery means stopped while the motor associated with the wire take-up means is rotated at a speed such that the sliding speed is adequate to obtain the working wire tension, taking into account the torque of glide. At this stage the thread is taut.
    [0093] • Increase the rotational speed of the motor associated with the yarn delivery means while increasing the speed associated with the yarn delivery means in such a way that the sliding speed is maintained above 0rpm and is such that causes the thread tension (Twork) to not exceed the maximum tension (tmax) or less than the minimum voltage (tmin) during the entire duty cycle.
    [0095] DESCRIPTION OF THE DRAWINGS
    [0097] To complement the description that is being made and in order to help a better understanding of the characteristics of the invention, the present specification is attached, as an integral part thereof, to a set of drawings in which for illustrative purposes and non-limiting, the following has been represented:
    [0099] Figure 1: Shows an unwinding and winding machine indicating its main components.
    [0101] Figures: 2-A, 2-B and 2-C: Shows different types of delivery spool folding and yarn take-up spools.
    [0103] Figure 3: Shows the constituent parts of the anti-vibration means with a flexible rod rolling guide.
    [0105] Figure 4: Shows the constituent parts of the anti-vibration means with 2 flexible rod rolling guides.
    [0107] Figure 5: Shows the constituent parts of the torque limiting means with two bearings
    [0109] Figure 6: Shows the constituent parts of the torque limiting means with two axially preloaded bearings.
    [0111] PREFERRED EMBODIMENT OF THE INVENTION
    [0112] In view of the aforementioned figures and, in accordance with the numbering adopted, an example of a preferred embodiment of the invention can be seen in them, which comprises the parts and elements that are indicated and described in detail below.
    [0114] First preferred embodiment of the invention
    [0116] In this preferred embodiment, the yarn unwinding or delivery means are motorized and consequently are those that regulate the unwinding speed (Vlin) of the yarn. In this embodiment, the machine comprises rotary torque limiting means between the motor and the yarn take-up spool. This configuration of the machine can be seen in figure 1.
    [0118] The yarn delivery means (23) are composed of the delivery spool (1) that is fixed to the rotary shaft (2) through fixing means such as an extensible / compressible pneumatic actuation system that fixes the means thread delivery, for example, a coil inside the cardboard tube, and makes them integral with the shaft (2).
    [0120] On the same axis (2) is coupled the motor (4) that transmits the rotary movement to the yarn delivery means with an angular speed W1 revolutions per minute or rpm.
    [0122] The yarn (5) coming from the spool delivery means (1) is continuously unwinding in a perpendicular direction with an instantaneous unwinding diameter (D1) changing as it is emptied and unwound through the conical areas of the sides of the the yarn delivery means (1).
    [0123] The wire (5) passes through the anti-vibration system (10), such as the one illustrated in figure 3, which consists of passing the wire through two free rolling guides (6) fixed to the frame of the machine and at least one guide free rolling (6 '), which is attached to the end of a flexible rod (11) of section (S), preferably between 1 and 40 mm2, and fixed to the machine at a distance (P) that allows it to flex and absorb at least a total length (L1max. + L2Max.-L1min.-L2min) of 400 mm of wire and with a tension stroke Tmax. of 300cN yarn through the bending of the rod produced by the yarn tension.
    [0125] The configured tension Tmax will always be equal to or greater than the working tension Twork and will never be equal to or less than 0cN, otherwise the thread would relax.
    [0127] The antivibration system (10) can be combined in many ways, for example in a case where there is no rolling guide (6) fixed directly to the machine and all are rolling guides (6 ') associated with flexible rods (11, 11') each one with its respective rod of section (S), preferably between 1 and 40mm2, and with fixing distances P that can be different and preferably between 200mm and 1500mm. The antivibration system (10) can comprise at least one rolling guide with a flexible rod in the system to be able to absorb the required amount of wire.
    [0129] The antivibration system (10) can be adjusted in various ways, such as absorbing a total length of L1max + L2max-L1min-L2min wire of between 50 mm and 1000 mm combined with a tension within the Twork working tension range of between 2 to 200cN , in this preferred embodiment the antivibration system has been adjusted to 400mm of absorption of wire at 300cN tension Tmax with two rolling guides (6) fixed to the machine and a rolling guide (6 ') with flexible rod (11) of S = 6mm2 section embedded in the machine frame at a distance P of 500mm.
    [0131] The thread leaves the antivibration system (10) and goes to the reciprocating or folding system (7), as shown in figure 1, where said thread is guided by the free rolling guide (8) that rotates under the pull of the own thread (5) and has a back and forth linear displacement along the traverse of the means for collecting the thread or winding spool (9). The thread (5) coming out of the rolling guide (8) of the reciprocating system is directed to the winding system (22) as seen in figure 1 where it is wound on the thread pick-up spool or winding spool (9) which is integral with the shaft (16 ') and with an instantaneous winding diameter D2 and is folded or moved according to the sequence of movements of the reciprocating system (7) to obtain the shape of the desired fold, for example bottle shape.
    [0133] The reciprocating system (7) can be driven by any linear drive means such as a motor with a threaded spindle (14) where a threaded nut (15) on the spindle attached to the rolling guide (8) moves in one direction linear or other depending on the speed and direction of rotation of the motor and an encoder E to know the position at all times of the rolling guide (8) and that together the entire system is directed and controlled by means of programming functions and computation preferably located in a PLC or programmable automaton.
    [0135] The collection means (22) that is observed in figure 1 comprises a torque limiting means (12) fixed between the motor shaft (16) and the coil shaft (16 ') in such a way that the collection coil (22) slides rotationally when the angular speed W2 of the motor (13) is greater than the angular speed W2 'of the take-up reel (9). The torque limiting value (Zmax) must be set between 0.001 and 0.15 N * m and even more preferably 0.005 N * m. The choice of the torque limitation value (Zmax) is made as a function of the tension (Twork) to be applied to the wire in combination with the applied sliding revolutions.
    [0137] In this case, that is, when the torque limiter is located on the pickup means, the angular speed of the motor W2 is always greater than the angular speed of the pickup coil (W2 '), the value W2-W2' = Vdes the sliding speed of the torque limiter (12). The sliding speed (Vdes) together with the value of the torque limitation which in this preferred example is set to 0.005 N * m which regulates the thread tension (Twork).
    [0139] In the case that the torque limiter is located in the delivery means (23) between the motor (4) and the coil (1), the angular speed of the motor W1 is always less than the angular speed W1 'of the coil of delivery (1) and a slip also occurs Vdes = W1-W1 '
    [0141] The angular velocity of the take-up reel (W2 ') is associated with the angular velocity of the delivery reel (W1), the unwinding diameter D1, and the instantaneous winding diameter D2, that is, any change in linear speed of the thread (5) and the diameter D2 and D1 of the winding spool (9) and unwinding spool (1) cause the angular speed W2 'of the winding spool (9) to change.
    [0143] Therefore, the tension on the thread (t) is generated during the entire work cycle as a function of (W2) with respect to (W2 '), with the following:
    [0145] torque limiter slip speed Vdes = W2-W2 ' In this embodiment, when the torque limiter is located on the take-up spool, the sliding speed (Vdes) must be positive to always generate tension on the thread (Twork). greater than 0 cN which is the minimum stress (tmin). At higher sliding speed, the tension applied to the wire (Twork) will be higher, and on the contrary, if the sliding speed (Vdes) is very small, the tension applied to the wire (Twork) will be very small, keeping the value of torque limitation (Zmax).
    [0147] In this preferred embodiment, the yarn is 30 Tex fiberglass and the linear speed of the yarn is 300 m / min (5m / s) although they can be greater as 400m / min or 500 m / min or even more and, W2 - W2 '= 100 sliding rpm and that in these circumstances a tension is generated on the wire (t) of 30cN
    [0149] Second preferred embodiment of the invention
    [0151] The torque limiter (12) is a well-known mechanical element in the state of the art, although in the case of the present invention since it must be adjusted with very small sliding torque values of between 0.001 and 0.15 N * m , makes a very effective limiter for this application to be at least one bearing where the bearing's own torque is necessary to transmit the movement of the inner ring to the outer ring or vice versa, that is, it can be in values of 0.001 N * m. At least one bearing of any type, balls, rollers, friction, needles, axial etc ... is a torque transmitter with a very small value within the range of 0.001 to 0.15 N * m effective that provides a solution in the present invention
    [0153] According to figure 5, the means that collect the thread (9) or the collection spool is concentric to the shaft (16 '') through ball bearings (17 and 17 ') each one acting as torque limiters and allowing a certain torque to be transmitted (associated with limiters 17 and 17 ') between shaft 16''and coil 9. In this case, the coil is axially fixed by the limit switch bushings (18 and 18 ').
    [0155] Third preferred embodiment of the invention
    [0157] Depending on the torque to be transmitted, as the torque limiter torque limiting values required are larger where at least one bearing is not sufficient for it, a way to increase the torque is detailed below. torque limiter transmission.
    [0159] As can be seen in figure 6, it is foreseen that the torque limiting means comprise at least two bearings (19 and 19 ') mounted on the same support (20) and limited axial movement of the shaft (16' ') through retainer bushings (18 '' and 18 '' '). The inner rings of the bearings (19 and 19 ') are preloaded by a force F of the axial component that the spring (21) performs against the balls of said bearings (19 and 19'), causing the force F to cause the torque to transmit together is greater than the sum of the torques that transmit individually without preload F. In this way the two bearings that individually without preload F, transmit a joint torque, for example of 0.01 N * m when subjected to preload F, the transmission torque or limiting torque of the system can be increased in such a way that, depending on the preload value of F, even higher values of 0.1 N * m can be reached in a controlled manner, covering all possibilities of limiting for which are claimed in the present invention.
    权利要求:
    Claims (1)
    [0001]
    R E I V I N D I C A C I O N E S
    1.- Machine for unwinding and winding of yarn at a speed greater than 1 m / s and without twisting that includes
    • a rotating yarn delivery means comprising a yarn delivery spool and a motor (M1)
    • a rotating yarn collecting means comprising a yarn collecting spool, reciprocating means defining the spool geometry, and a motor (M2)
    characterized because
    • at least the yarn delivery means or the yarn collection means comprises a torque limiting means with a torque limiting value (Zmax) and always causing a sliding speed (Vdes), understood as the speed difference angular the angular speed of the motor shaft associated with the torque limiting means and the angular speed of the coil associated with the torque limiting means
    in such a way that it is possible to establish the thread tension (Twork) measured between the reciprocating means and the take-up spool during the transformation process and consequently to be able to keep said thread tension (Twork) below a maximum tension (tmax) and above a minimum voltage (tmin) modifying only the sliding speed (Vdes).
    2. Machine for unwinding and winding yarn at a speed greater than 1m / s and without twisting according to claim 1, characterized in that
    • the torque limitation value (Zmax) is between 0.001 N * m to 0.15N * m
    so that the thread tension (Twork) is not greatly affected when unexpected changes appear in the sliding speed (Vdes).
    3. Machine for unwinding and winding yarn at a speed greater than 1m / s and without twisting according to any of the preceding claims, characterized in that the torque limiting means are part of the motor assembly.
    4. Machine for unwinding and winding yarn at a speed greater than 1m / s and without twisting according to any of the preceding claims, characterized in that the torque limiting means are at least one bearing with a sliding torque between the spool and the shaft of the motor.
    5. Machine for unwinding and winding of yarn at a speed greater than 1m / s and without twisting according to any of claims 1-3, characterized in that the torque limiting means are at least two bearings with a determined axial preload between the coil and the motor shaft.
    6. Machine for unwinding and winding yarn at a speed greater than 1m / s and without twisting according to any of the preceding claims, characterized in that it comprises means for controlling the speed of the motors of the yarn delivery means and of the means for collecting the yarn. thread, consequently of the sliding speed (Vdes) and lastly the thread tension (Twork) in such a way that it is possible to adapt the sliding speed (Vdes) to the different situations that cause an increase in the thread tension (Twork ) in order to maintain said thread tension below a maximum tension (tmax) and above a minimum tension (tmin).
    7. Machine for unwinding and winding of yarn at a speed greater than 1m / s and without twisting according to claim 6 characterized in that the control means comprise means for capturing the instantaneous unwinding and winding diameters of the yarn delivery spools and / or or the thread take-up spool.
    8. Machine for unwinding and winding of yarn at a speed greater than 1m / s and without twisting according to claim 7, characterized in that the means for capturing the instantaneous unwinding and winding diameters of the yarn delivery spools and / or the coil yarn take-up sensors are distance sensors.
    9. Machine for unwinding and winding of yarn at a speed greater than 1m / s and without twisting according to claim 7, characterized in that the means for capturing the instantaneous unwinding and winding diameters of the yarn delivery spools and / or the coil The yarn take-up spool is a computer program that calculates the instantaneous unwind and wind-up diameters of the yarn delivery spool and / or the yarn take-up spool based on the initial geometry of the yarn delivery spool and based on the geometry of the yarn take-up spool throughout the working time of the machine.
    10. Machine for unwinding and winding of yarn at a speed greater than 1m / s and without twisting according to any of the preceding claims, characterized in that it comprises mechanical anti-vibration means of the yarn that can absorb the increase and / or reduction of the length of the yarn between the means of delivery of the thread and the means of take up the thread keeping the thread tension (Twork) between the maximum tension (tmax) programmed and the minimum tension (tmin).
    11. Machine for unwinding and winding of wire at a speed greater than 1 m / s and without twisting according to any of claim 10, characterized in that the anti-vibration means comprise a flexible rod with a section between 1mm2 to 40 mm2 and fixed to the machine with a distance P from 200 mm to 1500 mm that allows it to flex at the wire tension of between 2 to 200 cN and absorb a wire length of 50 to 1000 mm of wire and with a tension travel Tmax. 300cN mm thread.
    13. Procedure for unwinding and winding of yarn at a speed greater than 1 m / s and without twisting applicable with a machine according to any of the preceding claims characterized in that it comprises a stage in which modifying the sliding speed (Vdes), for example when An increase or decrease of the thread tension (Twork) is foreseen, the thread tension (Twork) can be adjusted in order to keep said thread tension (Twork) below a maximum tension (tmax) and above a minimum voltage (tmin).
    14. Procedure for unwinding and winding of yarn at a speed greater than 1m / s and without applicable twist according to claim 13, characterized in that the modification of the sliding speed is automatically controlled by control means depending on variables, such as diameters of instantaneous unwinding and winding of the yarn delivery spools and / or the yarn take-up spool and the weight of the spools decide the sliding speed so that the yarn tension (t) is not higher than the maximum tension ( tmax) or less than the minimum voltage (tmin).
    15. Procedure for unwinding and winding of yarn at a speed greater than 1m / s and without twisting according to any of claims 13-14, characterized in that it comprises the following steps in this order.
    • Keep the wire delivery means stopped while the motor associated with the wire take-up means is rotated at a speed such that the sliding speed is adequate to obtain the working wire tension, taking into account the torque of glide.
    • Increase the rotational speed of the motor associated with the yarn delivery means while increasing the speed associated with the yarn delivery means in such a way that the sliding speed is maintained above 0rpm and is such that causes the thread tension (Twork) to be neither higher than the maximum tension (tmax) nor lower than the minimum tension (tmin) during the entire work cycle.
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    同族专利:
    公开号 | 公开日
    WO2021160913A1|2021-08-19|
    ES2784920B2|2021-05-11|
    引用文献:
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    GB191515340A|1915-11-01|1916-10-26|Albert Howard Stott|Improvements in and connected with Winding Frames.|
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    申请号 | 申请日 | 专利标题
    ES202030104A|ES2784920B2|2020-02-10|2020-02-10|MACHINE AND PROCESS OF UNWINDING AND WINDING THREAD AT A SPEED GREATER THAN 1M / S|ES202030104A| ES2784920B2|2020-02-10|2020-02-10|MACHINE AND PROCESS OF UNWINDING AND WINDING THREAD AT A SPEED GREATER THAN 1M / S|
    PCT/ES2021/070094| WO2021160913A1|2020-02-10|2021-02-10|Machine and process for winding and unwinding thread at a speed greater than 1m/s|
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