Method for determining the properties of spun core yarn, method for operating a spinning station system, apparatus for data processing, yarn sensor device, spinning station system, and computer program
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-02-02
- Publication Date
- 2026-08-14
Smart Images
Figure 2026131594000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a method for determining characteristic values of a spun core yarn, a method for operating a spinning station system, an apparatus for data processing, a yarn sensor apparatus, a spinning station system, and a computer program.
Background Art
[0002] In the production of a spun core yarn, it is preferable to inspect the characteristics of the core yarn in order to ensure the quality of the spun core yarn during its production.
[0003] European Patent No. 1051595 discloses a method and an apparatus for determining a moving linear fiber structure.
[0004] European Patent No. 1889956 discloses a method and an assembly for detecting the presence or absence of core filaments in a core yarn during the spinning of the core yarn.
[0005] The disadvantage of the prior art solutions is, in particular, their complexity.
[0006] Disclosure of the Invention [[ID=3The above problems are solved by a method for determining the characteristic values of spun core yarn, a method for operating a spinning station system, an apparatus for data processing, a yarn sensor device, a spinning station system, and a computer program having the features of the corresponding independent claims. Other features and details of the present invention will become apparent from each dependent claim, specification and drawings. In this case, the features and details described in relation to the method for determining characteristic values according to the present invention naturally also apply in relation to the method for operating a spinning station system according to the present invention, the apparatus for data processing according to the present invention, the yarn sensor device according to the present invention, the spinning station system according to the present invention, and the computer program according to the present invention, and vice versa, so that they are always mutually referential or can be referred to with respect to the disclosure of the individual embodiments of the invention.
[0008] A method for determining the characteristic values of a spun core yarn according to the present invention, wherein the core yarn comprises a core yarn and sheath fibers surrounding the core yarn, comprises the following steps, namely: - A step of receiving at least one detected value, wherein the at least one detected value is preferably specific to the cross-section of the core yarn, - A step of evaluating at least one detected value, which includes comparing at least one detected value with at least one target value. - A step of determining the characteristic values of the core yarn based on the evaluation, in particular, the characteristic values that are acceptable when the detected value corresponds to the target value, and / or the characteristic values that are unacceptable when the detected value differs from the target value. Includes.
[0009] Therefore, in particular, the actual state of the yarn, and preferably a geometric image of the actual state, can be obtained using a sensor system. This provides an alternative or better technical solution for inspecting yarn, especially core yarn, which overcomes the shortcomings of the prior art. In other words, the method according to the present invention is preferably an inspection or examination of core yarn, especially spun core yarn. The detected value or actual state can be further compared with a target value. In this case, the center position of the core yarn can be compared with the coverage by the sheath fibers. Furthermore, if there is a deviation from the target value, corrective measures can be initiated, possibly automatically.
[0010] The following are examples of measures, including parameter changes, to address deviations from target values.
[0011] If the core thread is off-center from the yarn, this can sometimes be corrected by changing the core thread supply speed. To do this, the speed of the upstream core thread transport mechanism can be adjusted.
[0012] For example, if there are too few sheath fibers in the core yarn, this can be modified to increase the supply. To achieve this, for example, the supply rate of the fiber material and, for example, the rotation speed of the fiber separation rollers can be increased. It is also possible to reduce the rotation speed of the yarn formation process.
[0013] The process according to the present invention can preferably be repeated for sensor-based observation of the core yarn. This observation can also be continued as needed after the preceding parameters have been changed. Then, if the core yarn is possibly centered and sufficient covering is present, the production process can continue. Conversely, if the requirements are not met, the parameters can be changed again as needed.
[0014] The core yarn is preferably a spun yarn. The core yarn preferably has a core yarn, which is particularly directly surrounded by a layer of sheath fibers. The sheath fibers are preferably a fibrous material.
[0015] It is preferable that the detected value is detected particularly directly or indirectly by one sensor, multiple sensors, or yarn sensor device. Furthermore, detecting at least one detected value particularly by one sensor, multiple sensors, or yarn sensor device is considered part of the method for determining the characteristic value of the core yarn according to the present invention. One or more sensors may be a capacitive sensor and / or an optical sensor and / or an image sensor.
[0016] The detected value is preferably an image, in particular a geometric image of a core yarn, and especially a cross-section and / or surface of a core yarn.
[0017] Furthermore, the detected value may be a measured value, i.e., a value that has been measured, preferably directly or indirectly, and / or a sensor value, i.e., a value that has been measured by a sensor, preferably directly or indirectly.
[0018] The detected values may exist, for example, in the form of data, particularly in the form of digital or analog data. The characteristic values preferably correspond to the actual characteristic values of the core yarn.
[0019] The target value is preferably a target detection value. The target value or target detection value is preferably specific to the target cross-section of the core yarn.
[0020] Furthermore, reception can be performed via wired or wireless means, particularly using wireless transmission. The detected values can be received in an encrypted format. In this case, it is purposeful if the encrypted detected values are decrypted before evaluation. Encryption ensures operational security.
[0021] Reception can be performed using a receiving unit. In contrast, evaluation can be performed using an evaluation unit. The receiving and evaluation units can be integrated into a control unit, particularly a spinning station system.
[0022] Preferably, the method according to the invention is carried out in real time and / or during the production of the core yarn and, in particular, locally, after the spinning station or the spinning station device.
[0023] For recording, it can be contemplated that at least one detected value or characteristic value is stored. Such detected values or characteristic values can be assigned to the core yarn or can be assignable.
[0024] Furthermore, a plurality of detected values characteristic of different parts of the core yarn can be received. At this time, it is preferable that the corresponding detected values are received sequentially, particularly in the order of detection with a time interval.
[0025] It is preferable that at least one detected value is related to a section of the core yarn, particularly a length section. Furthermore, it is preferable that the method is carried out for a plurality of adjacent, or spaced apart from each other, or all sections of the core yarn, particularly length sections. Thus, random extraction inspection or continuous inspection of the core yarn can be realized.
[0026] The method according to the invention can be considered to be started by the start of the spinning process or the spinning method. At this time, it is expedient that when the spinning process or the spinning method is terminated or interrupted, the method according to the invention is terminated or interrupted. The spinning method or the spinning process preferably means the production of a spun yarn, i.e., a core yarn.
[0027] Furthermore, at least one detected value is specific to at least one of the following values, namely - the cross-sectional thickness of the core yarn, - the sheath fiber layer formed from the sheath fibers of the core yarn, particularly the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarn by the sheath fibers, - the cross-sectional thickness of the core of the core yarn, - the position of the core in the cross-section of the core yarn, and is specific to at least one of The target value is preferably specific to at least one target value corresponding to the detected value, particularly the following target values, namely - The target cross-sectional thickness of the core yarn, - The target sheath fiber layer of the core yarn, in particular, the target cross-sectional thickness of the sheath fiber layer and / or the target covering of the core yarn by the sheath fibers, - The target cross-sectional thickness of the core yarn of the core yarn, - The target position of the core yarn within the cross-section of the core yarn It is preferable if it is specific to at least one of them.
[0028] The cross-sectional thickness, in particular the cross-sectional thickness, can preferably be measured perpendicular to the extending direction and / or the conveying direction of the core yarn, in particular the straight extending direction and / or the conveying direction.
[0029] The target cross-sectional thickness is preferably the minimum cross-sectional thickness.
[0030] The position is preferably a relative position, in particular a relative position with respect to the outer contour of the core yarn. The target position is preferably a target relative position, in particular a target relative position with respect to the outer contour as well.
[0031] The position and / or the target position preferably represent the concentricity of the core yarn within the core yarn. In other words, by the method according to the invention, in particular after the spinning process, preferably automatically, an inspection of the core yarn regarding concentricity can be carried out. By the method according to the invention, an inspection regarding the covering of the core yarn can also be carried out if necessary.
[0032] One target value or a plurality of target values are preferably predetermined and / or specified and / or stored values, in particular target values.
[0033] The target value can preferably be a target value range or a target value span.
[0034] It is preferable if at least one detected value corresponds to a detected value averaged over the length of the time-averaged and / or spun core yarn, in particular the section length. In the case of the section length, a corresponding average detected value is obtained for each section or length section of the core yarn.
[0035] A method for operating a spinning station system is also the subject of the present invention, and the method comprises a step of a method for determining characteristic values according to the present invention, and a step of operating the spinning station system based on the determined characteristic values. Thus, the method according to the present invention for operating a spinning station system provides the same advantages as those already described for the method according to the present invention for determining characteristic values of spun core yarn. Furthermore, this allows various spinning parameters to be adapted or modified according to the determined characteristic values in order to achieve acceptable characteristic values. Operating preferably means closed-loop control and / or open-loop control of the spinning station system.
[0036] Furthermore, the method is - If the determined characteristic value corresponds to an acceptable characteristic value, the spinning method for producing core yarn shall be continued, and / or - If the determined characteristic value corresponds to an unacceptable characteristic value, corrective measures will be initiated. It is preferable if it includes this.
[0037] In other words, acceptable characteristic values preferably correspond to desired characteristic values, and unacceptable characteristic values preferably correspond to undesirable characteristic values. Unacceptable characteristic values lead to core yarns that do not meet quality requirements in particular. Acceptable characteristic values lead to core yarns that meet quality requirements in particular.
[0038] Furthermore, the modification measures preferably include modifications, preferably increasing the supply of fiber material, particularly sheath fibers, to the spinning method and / or reducing the speed of the spinning method, in order to increase the cross-sectional thickness of the sheath fiber layer and / or the coverage of the core yarn by the sheath fibers, and / or, modifications, preferably including changes in the conveyance, particularly increasing or decreasing the conveyance speed of the core yarn supplied to the spinning method, in order to adapt the position of the core yarn in the cross-section of the core yarn to a target position. Further modifications or manipulations of spinning parameters are also possible, preferably as modification measures.
[0039] Furthermore, the method is -If the determined characteristic value still corresponds to an unacceptable characteristic value after the implementation of one or more corrective measures, it is preferable to further include initiating the repetition of corrective measures to achieve an acceptable characteristic value.
[0040] In this way, it is ensured that corrective measures are repeated if the previous measures are insufficient. Preferably, the corrective measures are carried out in stages, in particularly specified equally spaced steps, during each run or iteration. This is understood, for example, as a gradual reduction in speed with each iteration. This prevents abrupt changes in the spinning parameters.
[0041] Furthermore, in order to achieve acceptable characteristic values, it is preferable that the repetitions are initiated at least according to the minimum number of repetitions and / or the minimum duration and / or the minimum production length of the core yarn, and / or, in order to achieve acceptable characteristic values, the repetitions are initiated at most according to the maximum number of repetitions and / or the maximum duration and / or the maximum production length of the core yarn.
[0042] The minimum number of repetitions and / or minimum duration and / or minimum production length ensure that corrective measures can be taken frequently enough to obtain acceptable characteristic values.
[0043] The maximum number of repetitions and / or the maximum duration and / or the maximum production length ensure that corrective measures can be secured in a timely manner if they do not produce the expected results.
[0044] Preferably, corrective actions or repetitions thereof are performed either immediately or at intervals. Preferably, at least one updated detected value is evaluated and the updated characteristic value is determined from it before a repetition or new corrective action is initiated if the updated characteristic value corresponds to an unacceptable characteristic value.
[0045] A repeating corrective measure may be a different or different type of corrective measure compared to the corrective measure initiated previously.
[0046] Furthermore, the method is - If at least one determined characteristic value continues to be an unacceptable characteristic value after performing one or more corrective measures, particularly after achieving the maximum number of repetitions and / or the maximum duration and / or the maximum production length of the core yarn, then the spinning process may be terminated or interrupted, and / or - Preferably, this further includes initiating a signal specific to unacceptable characteristic values, particularly optical and / or acoustic signals, to inform the operator of the spinning station system of any deviation.
[0047] This signal allows maintenance of the spinning station system to be initiated in order to obtain characteristic values corresponding to acceptable characteristic values.
[0048] Termination or interruption allows for maintenance of the spinning station system. Furthermore, this signal can indicate current characteristic values or characteristic value profiles.
[0049] Apparatus for data processing, including means for performing one of the methods according to the present invention, is also the subject of the present invention. Accordingly, apparatus according to the present invention provides the same advantages as those described in detail with respect to the methods according to the present invention.
[0050] The means may be program code and / or structural elements and / or assemblies and / or devices, such as actuators and / or sensor systems.
[0051] A computer or data processing device can be considered a device for data processing. Furthermore, a device for data processing may be a control device, a control unit, and / or an evaluation unit.
[0052] Preferably, a data processing device can receive at least one detected value and / or evaluate at least one detected value and / or determine a characteristic value.
[0053] Preferably, a yarn sensor device for a spinning station system for determining the characteristic values of a core yarn, comprising a data processing apparatus according to the present invention, is also the subject of the present invention, and in particular the yarn sensor device determines the following values, namely, -Cross-sectional thickness of core yarn, - The sheath fiber layer of the core yarn, in particular the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarn by the sheath fibers, -Cross-sectional thickness of the core yarn of the core yarn, - The position of the core thread within the cross-section of the core yarn. The system is characterized by comprising a sensor system designed to detect at least one detection value specific to at least one of the following.
[0054] A spinning station system equipped with a yarn sensor device according to the present invention is also the subject of the present invention, comprising a spinning station device for producing core yarn, a core yarn supplier for supplying core yarn to the spinning station device, and a fiber material supplier for supplying sheath fibers to the spinning station device, wherein the yarn sensor device is preferably located downstream of the spinning station device in the core yarn transport direction in order to determine the characteristic values of the core yarn spun by the spinning station device.
[0055] A spinning station system can preferably be understood as a textile machine for spinning yarn, particularly core yarn, or a spinning machine for spinning yarn, i.e., core yarn. The textile machine can be designed for rotary spinning and / or pneumatic spinning and / or friction spinning. Thus, the spinning method may be open-end spinning / rotary spinning, friction spinning, pneumatic spinning, or other spinning methods.
[0056] The placement of the yarn sensor device downstream of the spinning station device preferably means that the spun core yarn exiting the spinning station device or the spinning station of the spinning station device passes through the yarn sensor device after it has been produced.
[0057] The spinning station apparatus preferably comprises a spinning station for spinning yarn, particularly core yarn, preferably pneumatic spinning, and especially a spinning station in the form of a rotor.
[0058] Spinned yarn, particularly core yarn, can be produced by a spinning station apparatus or a spinning station of a spinning station apparatus. The spinning station may preferably include a rotor designed to spin core yarn together with rotor yarn, particularly sheath fibers, to form spun yarn, particularly core yarn. The spun yarn, particularly core yarn, is preferably wound onto bobbins or rolls and / or housed in a kens provided for this purpose after its production. The detected characteristic values are assigned to the kens and / or bobbins or rolls containing the spun yarn, particularly core yarn, so that information regarding the determined characteristic values of the produced spun yarn is available, particularly at a later point in time.
[0059] A spinning station system or a portion of a spinning station system is preferably designed to perform one of the methods according to the present invention.
[0060] A spinning station system and / or the spinning station apparatus can be used to perform core yarn spinning for the production of core yarn.
[0061] Furthermore, the spinning station system preferably includes an evaluation unit designed to evaluate at least one detected value, the evaluation of which includes comparing at least one detected value with at least one corresponding target value, and the evaluation unit is further designed to determine a core yarn characteristic value based on the evaluation, in particular, such that an acceptable characteristic value is determined when the detected value is equal to the target value, and / or an unacceptable characteristic value is determined when the detected value is different from the target value.
[0062] The target value is preferably at least one target value corresponding to the detected value, in particular the following target values, i.e. - Target cross-sectional thickness of core yarn, - Target sheath fiber layer of core yarn, in particular, target cross-sectional thickness of the sheath fiber layer and / or target coverage of the core yarn by the sheath fibers, - Target cross-sectional thickness of the core yarn of the core yarn, - Target position of the core thread within the cross-section of the core yarn It is specific to at least one of them.
[0063] Furthermore, the spinning station system includes a control unit designed to operate the spinning station system based on characteristic values, in particular, so that the spinning method for producing core yarn continues if the determined characteristic value corresponds to an acceptable characteristic value, and / or so that corrective measures are taken if the determined characteristic value corresponds to an unacceptable characteristic value, the corrective measures include modifications, preferably increasing the supply of fiber material, particularly sheath fibers, to the spinning method and / or reducing the speed of the spinning method, in order to increase the cross-sectional thickness of the sheath fiber layer and / or the coverage of the core yarn by the sheath fibers, and / or preferably including modifications to the conveyance, particularly increasing or decreasing the conveyance speed of the core yarn supplied to the spinning method, in order to adapt the position of the core yarn in the cross-section of the core yarn to a target position.
[0064] The spinning method is preferably a spinning method for producing spun yarn, particularly core yarn. Production, i.e., the spinning method, is continued only when the core yarn meets a specified standard, i.e., a target value, so that any defects that may occur in the produced core yarn can be prevented by corrective measures.
[0065] In other words, the spinning station system according to the present invention preferably corresponds to a spinning station system for producing core yarn, and is equipped with a yarn sensor device for determining the characteristic values of the core yarn, the yarn sensor device determines the following values, namely, -Cross-sectional thickness of core yarn, - The sheath fiber layer of the core yarn, in particular the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarn by the sheath fibers, -Cross-sectional thickness of the core yarn of the core yarn, - Position of the core thread within the cross-section of the core yarn A sensor system is provided that is designed to detect at least one detected value which is specific to at least one of the following: The spinning station system comprises a spinning station apparatus for producing core yarn, the spinning station system has a core yarn feeder for supplying core yarn to the spinning station apparatus, the spinning station system has a fiber material feeder for supplying sheath fibers to the spinning station apparatus, the yarn sensor apparatus is positioned downstream of the spinning station apparatus, preferably in the core yarn transport direction, to determine the characteristic values of the core yarn spun by the spinning station apparatus, the spinning station system comprises an evaluation unit designed to evaluate at least one detected value, the evaluation including a comparison of at least one detected value with at least one corresponding target value, the evaluation unit is further designed to determine the characteristic values of the core yarn such that, based on this evaluation, an acceptable characteristic value is determined if the detected value is equal to the target value, and an unacceptable characteristic value is determined if the detected value is different from the target value, and the spinning station system comprises the characteristic values The spinning station system is provided with a control unit designed to operate the spinning station system so that if the determined characteristic value corresponds to an acceptable characteristic value, the spinning method for producing core yarn continues, and if the determined characteristic value corresponds to an unacceptable characteristic value, corrective measures are taken, the corrective measures including modifications, preferably increasing the supply of fiber material, particularly sheath fibers, to the spinning method and / or reducing the speed of the spinning method, in order to increase the cross-sectional thickness of the sheath fiber layer and / or the coverage of the core yarn by the sheath fibers, and / or modifications including changes in conveyance, particularly increasing or decreasing the conveyance speed of the core yarn, in order to adapt the position of the core yarn in the cross-section to a target position, and the control unit is further designed to terminate the spinning method of the spinning station system if an unacceptable characteristic value is determined after the maximum number of repetitions and / or either one or the maximum duration thereof, and / or any one of the core yarns or the maximum production length thereof.
[0066] Alternatively or additionally, the spinning station system according to the present invention can be described as follows:
[0067] The spinning station system is - A core yarn feeder for supplying core yarn to a spinning station machine, - A textile material feeder for supplying textile material to a spinning station machine, - A spinning station apparatus for spinning yarn from a fiber material and a core yarn, wherein the core yarn forms a core, a fiber material, and an outer sheath fiber layer adjacent to the core. - A thread sensor device, -Located downstream of the spinning station equipment, -Designed to detect the cross-sectional thickness of spun yarn, -Designed to detect the cross-sectional thickness of the sheath fiber layer, -Designed to detect the position of the core thread within the spun yarn, - A thread sensor device designed to detect the cross-sectional thickness of the core thread, - A detection device for detecting the production length of spun yarn or the production time of a spinning station device, - An evaluation unit, -Communicated with the thread sensor device, -Based on the detected data, - Is the arrangement of the core threads within the spun yarn acceptable or unacceptable? - An evaluation unit designed to determine whether the cross-sectional thickness of the sheath fiber layer is acceptable or unacceptable for a spun yarn having a core yarn to be manufactured. - A control unit, -Communicated and coupled with core yarn feeder, fiber material feeder, spinning station device, detection device and evaluation device, - Designed to control the feeding speed of the core feeder to correct the position of the core to an acceptable arrangement within the spun yarn being manufactured, -Designed to control the feed rate of the fiber material feeder in order to adjust the cross-sectional thickness of the sheath fiber layer in the spun yarn being produced to an acceptable range. -Designed to control defined spinning parameters of the spinning machine in order to correct the cross-sectional thickness of the sheath fiber layer in the spun yarn produced to an acceptable range. - A control unit designed to block a production operation of the spinning station system, which is the operation in which the spinning station equipment produces spun yarn, if it is determined that one of the modifications is unacceptable after a specified production time or production length has elapsed.
[0068] Some or more features listed with bullet points or hyphens in the embodiments described above may be optional.
[0069] Computer programs, particularly computer program products, that include commands causing a computer to execute the method according to the present invention when the computer program is executed by the computer, are also subject to the present invention.
[0070] Therefore, the computer program, in particular the computer program product, according to the present invention provides the same advantages as those described in detail with respect to the method according to the present invention.
[0071] One of the devices for data processing, data processing devices, for example, the device according to the present invention that executes a computer program, can be provided as a computer. The computer may have at least one processor for executing the computer program. A non-volatile data memory can also be provided, in which the computer program is stored and can be read from the data memory by the processor for execution.
[0072] Similarly, a computer may include at least one integrated circuit, such as a microprocessor, or an application-specific integrated circuit (ASIC), or an application-specific general-purpose product (ASSP), or a digital signal processor (DSP), or a field-programmable gate array (FPGA). A computer may further have at least one interface for data exchange, such as an Ethernet interface, or a LAN (Local Area Network) interface, or a WLAN (Wireless Local Area Network) interface, or a System-on-a-Chip (SoC) interface, or other wireless interfaces such as Bluetooth or Near Field Communication (NFC). Furthermore, a computer may be configured as one or more control devices, i.e., a system of control devices. A computer may also be provided as a cloud and / or server, for example, to make data processing available to local applications via an interface. It is also possible for a computer to be configured as a mobile device, such as a smartphone.
[0073] Computer programs can also be provided by storing them in non-volatile memory or on a computer-readable medium.
[0074] In addition, a computer-readable medium on which a computer program according to the present invention is stored can be considered.
[0075] Therefore, a computer-readable medium offers the same advantages as those described in detail with respect to the computer program according to the present invention.
[0076] Similarly, the subject of the present invention may be a computer-readable storage medium containing a computer program according to the present invention. The storage medium is formed, for example, as a data memory such as a hard disk and / or non-volatile memory and / or memory card. The storage medium may be integrated into a computer, for example.
[0077] Furthermore, one of the methods according to the present invention can be carried out, in particular, as a computer-implemented and / or automated method, either fully or partially. [Brief explanation of the drawing]
[0078] Further advantages, features, and details of the present invention will become apparent from the following description, which provides a detailed description of embodiments of the invention with reference to the drawings. Herein, the features mentioned in the claims and specification are considered essential to the invention, either individually or in any combination.
[0079] [Figure 1] This is a flowchart of an exemplary embodiment of the method according to the present invention. [Figure 2] This is a schematic diagram of an exemplary embodiment of the spinning station system according to the present invention. [Figure 3a] This is a schematic diagram showing the position of the core thread within the core yarn. [Figure 3b] This is another schematic diagram showing the position of the core thread within the core yarn.
[0080] Figure 1 shows a flowchart of an exemplary embodiment of method 100b according to the present invention for operating a spinning station system 201, the method comprising steps of method 100a according to the present invention for determining characteristic values of spun core yarns 202c, 302c, the core yarns 202c, 302c comprising core yarns 202a, 302a and sheath fibers 302d surrounding the core yarns 202a, 302a (Figures 3a, 3b). A first step 101 comprises initiating method 100b according to the present invention for operating the spinning station system 201, which can be done simultaneously with initiating the manufacturing method of the core yarns 202c, 302c. As a second step 102, at least one detected value is received. At least one detected value is one of the following values, i.e., -Cross-sectional thickness of core yarn 202c, 302c, - A sheath fiber layer formed from the sheath fibers 302d of the core yarns 202c and 302c, in particular the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarns 202a and 302a by the sheath fibers 302d. -Cross-sectional thickness of core yarns 202a and 302a of core yarns 202c and 302c, - Position of core threads 202a, 302a within the cross-section of core yarns 202c, 302c It is specific to at least one of them.
[0081] Next, a third step 103 is performed, which includes evaluating at least one detected value, and this evaluation includes comparing at least one detected value with at least one target value stored in the database of memory 109. In a fourth step 104, characteristic values of the core yarns 202c, 302c are determined based on the evaluation. If the detected value corresponds to the target value, an acceptable characteristic value is determined; if the detected value differs from the target value, an unacceptable characteristic value is determined. If the determined characteristic value corresponds to an unacceptable characteristic value, a sixth step 106 is started as the fifth step 105. The sixth step 106 includes initiating corrective measures. Corrective measures may include, for example, increasing the supply of sheath fibers 302d to the spinning method and reducing the speed of the spinning method in order to increase the cross-sectional thickness of the sheath fiber layer and the coverage of the core yarns 202a, 302a by the sheath fibers 302d. Corrective measures may, additionally or alternatively, include increasing or decreasing the conveying speed of the core yarns 202a, 302a supplied to the spinning method in order to adjust the position of the core yarns 202a, 302a in the cross-section of the core yarns 202c, 302c to the target position 312. Method 100b is then repeated from the second step 102. Such repetitions and the execution of corrective measures may be limited depending on a specified maximum number of repetitions. If the maximum number of repetitions of corrective measures has been performed, immediately after the fifth step 105, an eighth step 108 is performed intending to terminate or interrupt the spinning method and, for example, a method for performing maintenance on the spinning station system 201 on which the spinning method was performed. However, if at least one characteristic value is an acceptable characteristic value, a seventh step 107 is initiated within the scope of step 105, which includes continuing the spinning process. Optionally, method 100b for operating the spinning station system 201 can be performed in real time and can be sustained throughout the entire duration of the spinning process, meaning that the reception of the current detection value will occur again following the seventh step 107. However, if it is determined in the seventh step 107 that there is no material left to spin, an eighth step 108 is initiated, which includes ending or interrupting the spinning method to replenish the material.
[0082] Figure 2 shows a schematic diagram of an exemplary embodiment of a spinning station system 201 according to the present invention. The spinning station system 201 includes a fixture 203 for a core yarn bobbin 202b. The core yarn 202a is drawn from the core yarn bobbin 202b by a conveying device 204 and conveyed to a spinning station device 211, where the core yarn 202a can be spun together with sheath fibers 302d to form a core yarn 202c. In other words, the conveying device 204 is a core yarn feeder 204. A fiber material feeder for supplying sheath fibers 302d to the spinning station device 211 is also included in the spinning station system 201, but such a fiber material feeder is not shown in the figure for the sake of simplicity. The spun core yarn 202c is inspected by detecting a value by a yarn sensor device 205 having a sensor system 206. These detected values are evaluated in an embodiment of the data processing apparatus 207 according to the present invention, designed as a computer 207 and a control unit 207, to determine the characteristic values of the core yarn 202c. For this purpose, the control unit 207 has a computer-readable medium 209 in which one embodiment of a computer program 208 according to the present invention is stored. The computer-readable medium 209 is preferably designed as a non-volatile memory 109. The computer program 208 includes commands that, when the computer program 208 is executed by the computer 207, cause the computer to execute a method for operating the spinning station system 201 according to the present invention. Furthermore, the spinning station system 201 includes a signal generator 210 designed to emit an acoustic and / or optical signal to the operator of the spinning station system 201 if the maximum number of iterations of the corrective measures remains unsuccessful. In this case, the signal is characteristic of an unacceptable characteristic value.
[0083] Figure 3a is a schematic diagram showing the position of the core yarn 302a within the core yarn 302c. This figure is a longitudinal cross-sectional view of the core yarn 302c in the XY plane, and the core yarn 302c is transported in the Y direction. The position of the core yarn 302a surrounded by the sheath fibers 302d can be detected using the sensor system 306. The position of the core yarn 302a is shown outside the target position 312 of the core yarn 302a, which leads to the determination of unacceptable characteristic values of the core yarn 302c.
[0084] Figure 3b shows a schematic diagram of the position of the core yarn 302a within the core yarn 302c. This is the arrangement shown in Figure 3a. However, a cross-section perpendicular to the transport direction of the core yarn 302c, i.e., in the XZ plane, is shown, which reveals the deviation of the core yarn 302a from the target position 312, in particular from the optimal central position within the sheath fiber 302d, i.e., the concentric position.
[0085] A modified embodiment of the present invention starts with a situation in which, after the spinning process, the core yarns 202c, 302c are inspected against criteria such as the covering and concentricity of the core yarns 202a, 302a. In this case, each process may be automated, particularly by interacting with a machine, spinning station and / or equipment or a controller for the entire spinning factory. After the core yarns 202c, 302c are produced, the question often arises as to how the core yarns 202a, 302a are covered by the sheath fibers 302d and how the core yarns 202a, 302a are positioned at the center of the core yarns 202c, 302c.
[0086] According to a modified embodiment of the present invention, after the core yarns 202c and 302c leave the spinning process, they are intended to pass through sensor systems 206 and 306. Using sensor systems 206 and 306, geometric images of the actual state of the core yarns 202c and 302c can be obtained. The actual state can then be compared with a target value. In this case, the center positions of the core yarns 202a and 302a can be compared with the covering by the sheath fibers 302d. If a deviation from the target exists, corrective measures can be initiated if necessary.
[0087] If the core yarns 202a and 302a are off-center from the core yarns 202c and 302c, this can be corrected by changing the speed of the core yarn supply 204. For this purpose, the speed of the upstream core yarn transport mechanism can be adjusted. If there are too few sheath fibers 302d in the core yarns 202c and 302c, this can be corrected by increasing the supply. The supply speed of the fiber material, and for example, increasing the rotation speed of the fiber splitting roller and / or decreasing the rotation speed of the yarn formation process can also be taken into consideration. After the parameter changes have been made, the core yarns 202c and 302c can continue to be monitored via the sensor systems 206 and 306. If the core yarns 202a and 302a are centered and sufficient covering is present, the production process can continue. If the requirements are not met, further modifications to the upstream process can be attempted. If the target is not achieved after a specified production length, the production station can be suspended. [Explanation of symbols]
[0088] 100a Method 100b method 101 First process 102 Second process 103 Third process 104 Fourth process 105 Fifth process 106 The sixth process 107 Step 7 108 Step 8 109 memory 201 Spinning Station System 202a Core yarn 202b Core thread bobbin 202c Core Yarn 203 Mounting hardware 204 Conveyor device, core thread feeder 205 Thread Sensor Device 206 Sensor System 207 Devices, computers, and control units 208 Computer Programs 209 Computer-readable media 210 Signal Generator 211 Spinning station equipment 302a core thread 302c Core Yarn 302d sheath fiber 306 Sensor System 312 Target position
Claims
1. A method (100a) for determining the characteristic values of spun core yarns (202c, 302c), wherein the core yarns (202c, 302c) comprise core yarns (202a, 302a) and sheath fibers (302d) surrounding the core yarns (202a, 302a), and the method is - A step of receiving at least one detected value, wherein the at least one detected value is preferably specific to the cross-section of the core yarn (202c, 302c), - A step of evaluating the at least one detected value, wherein the evaluation includes comparing the at least one detected value with at least one target value. - A step of determining the characteristic values of the core yarn (202c, 302c) based on the above evaluation, in particular, the characteristic values that are acceptable when the detected value corresponds to the target value, and / or the characteristic values that are unacceptable when the detected value differs from the target value. A method that includes this.
2. The at least one detected value is the following value, namely: - The cross-sectional thickness of the core yarn (202c, 302c), - A sheath fiber layer formed from the sheath fibers (302d) of the core yarn (202c, 302c), in particular the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarn (202a, 302a) by the sheath fibers (302d), - The cross-sectional thickness of the core yarn (202a, 302a) of the core yarn (202c, 302c), - The position of the core threads (202a, 302a) within the cross-section of the core yarns (202c, 302c), It is specific to at least one of the following: The target value is preferably specific to at least one target value corresponding to the detected value, and in particular is the following target value, i.e. - Target cross-sectional thickness of the core yarn (202c, 302c), - Target sheath fiber layer of the core yarn (202c, 302c), in particular, target cross-sectional thickness of the sheath fiber layer and / or target coverage of the core yarn (202a, 302a) by the sheath fiber (302d), - The target cross-sectional thickness of the core yarn (202a, 302a) of the core yarn (202c, 302c), - Target position (312) of the core thread (202a, 302a) within the cross-section of the core yarn (202c, 302c) The method according to claim 1 (100a), which is specific to at least one of the following.
3. A method (100b) for operating a spinning station system (201), comprising the steps described in claim 1 or 2, wherein the spinning station system (201) is operated based on determined characteristic values.
4. - If the determined characteristic value corresponds to an acceptable characteristic value, the spinning method for producing the core yarn (202c, 302c) shall be continued, and / or - If the determined characteristic value corresponds to an unacceptable characteristic value, corrective measures shall be initiated. The method according to claim 3, further comprising (100b).
5. The method according to claim 3 or 4 (100b), characterized in that the modification measures include a change, preferably an increase in the supply of fiber material, in particular sheath fibers (302d), to the spinning method and / or a reduction in the speed of the spinning method, in order to increase the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarns (202a, 302a) by the sheath fibers (302d), and / or the modification measures include a change in the transport, in particular an increase or decrease in the transport speed of the core yarns (202a, 302c) supplied to the spinning method, in order to adapt the position of the core yarns (202a, 302a) in the cross-section of the core yarns (202c, 302a) to the target position (312).
6. - If the determined characteristic value continues to be an unacceptable characteristic value after the execution of one or more corrective measures, the correction measures are repeated in order to achieve an acceptable characteristic value. The method according to any one of claims 3 to 5, further comprising (100b).
7. The method according to claim 6 (100b), characterized in that, in order to achieve an acceptable characteristic value, the repetitions are started according to at least a minimum number of repetitions and / or a minimum duration and / or a minimum production length of the core yarn (202c, 302c), and / or, in order to achieve an acceptable characteristic value, the repetitions are started according to a maximum number of repetitions and / or a maximum duration and / or a maximum production length of the core yarn (202c, 302c).
8. - If the at least one determined characteristic value continues to be an unacceptable characteristic value after performing the one or more corrective measures, particularly after achieving the maximum number of repetitions and / or the maximum duration and / or the maximum production length of the core yarn (202c, 302c), then the end or interruption of the spinning method shall be initiated, and / or - In particular to inform the operator of the spinning station system (201) of the deviation, to initiate a signal specific to the unacceptable characteristic value, in particular an optical and / or acoustic signal. The method according to any one of claims 1 to 7, further comprising (100b).
9. A device for data processing (207), comprising means for performing the method (100a, 100b) according to any one of claims 1 to 8.
10. A yarn sensor device (205) for a spinning station system (201) for determining characteristic values of core yarns (202c, 302c), comprising the apparatus (207) described in claim 9, wherein, in particular, The thread sensor device (205) has the following values, namely: - The cross-sectional thickness of the core yarn (202c, 302c), - A sheath fiber layer formed from the sheath fibers (302d) of the core yarn (202c, 302c), in particular the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarn (202a, 302a) by the sheath fibers (302d), - The cross-sectional thickness of the core yarn (202a, 302a) of the core yarn (202c, 302c), A yarn sensor device comprising a sensor system (206, 306) designed to detect at least one detection value specific to at least one of the positions of the core threads (202a, 302a) within the cross-section of the core yarns (202c, 302c).
11. A spinning station system (201) comprising a yarn sensor device (205) according to claim 10, the spinning station system comprising: a spinning station device (211) for manufacturing core yarns (202c, 302c); a core yarn supplier (204) for supplying core yarns (202a, 302a) to the spinning station device (211); and a fiber material supplier for supplying sheath fibers (302d) to the spinning station device (211), wherein the yarn sensor device (205) is preferably located downstream of the spinning station device (211) in the transport direction of the core yarns (202a, 302a) in order to determine the characteristic values of the core yarns (202c, 302c) spun by the spinning station device (211).
12. The spinning station system (201) according to claim 11, further comprising an evaluation unit designed to evaluate at least one detected value, the evaluation including a comparison of the at least one detected value with at least one corresponding target value, the evaluation unit further being designed to determine characteristic values of the core yarn (202c, 302c) based on the evaluation, in particular, that an acceptable characteristic value is determined when the detected value corresponds to the target value, and / or an unacceptable characteristic value is determined when the detected value differs from the target value.
13. The spinning station system (201) includes a control unit (207) designed to operate the spinning station system (201) so that, based on the characteristic value, the spinning method for producing the core yarns (202c, 302c) continues if the determined characteristic value corresponds to an acceptable characteristic value, and / or corrective measures are taken if the determined characteristic value corresponds to an unacceptable characteristic value, wherein the corrective measures are the cross-sectional thickness of the sheath fiber layer and / or the core yarns (202a, 302a) due to the sheath fiber (302d). A spinning station system (201) according to claim 11 or 12, characterized in that the modification includes increasing the supply of fiber material, particularly sheath fibers (302d), to the spinning method and / or reducing the speed of the spinning method, and / or the modification includes increasing or decreasing the conveying speed of the core yarns (202a, 302a) supplied to the spinning method, in order to adjust the position of the core yarns (202a, 302a) in the cross section of the core yarns (202c, 302c) to a target position (312).
14. A spinning station system (201) for manufacturing core yarns (202c, 302c), comprising a yarn sensor device (205) according to claim 10 for determining characteristic values of the core yarns (202c, 302c), The thread sensor device (205) has the following values, namely: - The cross-sectional thickness of the core yarn (202c, 302c), - The sheath fiber layer of the core yarn (202c, 302c), in particular the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarn (202a, 302a) by the sheath fiber (302d), - The cross-sectional thickness of the core yarn (202a, 302a) of the core yarn (202c, 302c), - A sensor system (206, 306) is provided, which is designed to detect at least one detection value specific to at least one of the positions of the core threads (202a, 302a) within the cross-section of the core yarn (202c, 302c), The spinning station system (201) comprises a spinning station device (211) for producing the core yarns (202c, 302c), the spinning station system (201) comprises a core yarn feeder (204) for supplying core yarns (202a, 302a) to the spinning station device (211), the spinning station system (201) comprises a fiber material feeder for supplying sheath fibers (302d) to the spinning station device (211), and the yarn sensor device (205) is a core spun by the spinning station device (211). To determine the characteristic values of the yarn (202c, 302c), preferably located downstream of the spinning station device (211) in the transport direction of the core yarn (202a, 302a), the spinning station system (201) includes an evaluation unit designed to evaluate at least one detected value, the evaluation including a comparison of the at least one detected value with at least one corresponding target value, the evaluation unit further determines, based on the evaluation, an acceptable characteristic value if the detected value corresponds to the target value, and if the detected value is The spinning station system (201) is designed to determine the characteristic values of the core yarns (202c, 302c) such that if they differ from the target values, unacceptable characteristic values are determined, and the spinning station system (201) is designed to operate based on the characteristic values such that the spinning method for producing the core yarns (202c, 302c) continues if the determined characteristic values correspond to the acceptable characteristic values, and / or corrective measures are taken if the determined characteristic values correspond to unacceptable characteristic values. The unit (207) comprises, the modification measures include, to increase the cross-sectional thickness of the sheath fiber layer and / or the covering of the core yarns (202a, 302a) by the sheath fibers (302d), a modification, preferably, an increase in the supply of fiber material, particularly sheath fibers (302d), to the spinning method, and / or a decrease in the speed of the spinning method, and / or, the modification measures include, to adjust the position of the core yarns (202a, 302a) in the cross-section of the core yarns (202c, 302c) to a target position (312), a change in the transport when the core yarns (202a, 302a) are supplied to the spinning process,In particular, the spinning station system (201) is designed to terminate the spinning method of the spinning station system (201) if, after the maximum number of repetitions and / or the maximum duration and / or the maximum production length of the core yarns (202c, 302c), an unacceptable characteristic value is determined.
15. A computer program (208) that, when executed by a computer (207), includes a command to cause the computer to execute the method (100a, 100b) according to any one of claims 1 to 8.