EP2775020B1 - Flachstrickmaschine und Strickverfahren unter Verwendung der Flachstrickmaschine - Google Patents

Flachstrickmaschine und Strickverfahren unter Verwendung der Flachstrickmaschine Download PDF

Info

Publication number
EP2775020B1
EP2775020B1 EP14020020.5A EP14020020A EP2775020B1 EP 2775020 B1 EP2775020 B1 EP 2775020B1 EP 14020020 A EP14020020 A EP 14020020A EP 2775020 B1 EP2775020 B1 EP 2775020B1
Authority
EP
European Patent Office
Prior art keywords
yarn
knitting
stitch
course
length
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP14020020.5A
Other languages
English (en)
French (fr)
Other versions
EP2775020A1 (de
Inventor
Yoshiyuki Komura
Mitsuo Kubo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shima Seiki Mfg Ltd
Original Assignee
Shima Seiki Mfg Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shima Seiki Mfg Ltd filed Critical Shima Seiki Mfg Ltd
Publication of EP2775020A1 publication Critical patent/EP2775020A1/de
Application granted granted Critical
Publication of EP2775020B1 publication Critical patent/EP2775020B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/66—Devices for determining or controlling patterns ; Programme-control arrangements
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/32—Cam systems or assemblies for operating knitting instruments
    • D04B15/327—Cam systems or assemblies for operating knitting instruments for stitch-length regulation
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/38—Devices for supplying, feeding, or guiding threads to needles
    • D04B15/48—Thread-feeding devices
    • D04B15/488—Thread-feeding devices in co-operation with stitch-length-regulating mechanism
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
    • D04B15/94—Driving-gear not otherwise provided for
    • D04B15/96—Driving-gear not otherwise provided for in flat-bed knitting machines

Definitions

  • the present invention relates to correction of an error between a consumed yarn length and a target yarn length when knitting a knitted fabric using a flat knitting machine.
  • Patent Literature 1 JP 2952391B
  • a consumed yarn length is measured by a sensor, and a stitch cam motor of a carriage is controlled so that an accumulated error in the consumed yarn length in one course is eliminated in the next course.
  • a loop length routine is carried out before actually knitting a knitted fabric, and the most appropriate stitch density value is determined.
  • Patent Literatures 2 and 3 JP 3603031B and JP 4016030B
  • a yarn feeding roller is driven by a servomotor and a yarn length to be fed is controlled.
  • Patent Literature 5 JP 2816784B .
  • a position at which a yarn is changed needs to be located at a desired position, but it is difficult to control the yarn change position to be located exactly at the desired position. Therefore, the change position is determined so that a yarn margin is created that is shorter than one stitch, and the yarn of the margin is treated with tuck stitches or the like so as to be inconspicuous.
  • Patent Literature 4 JP 4366312B focuses attention on the fact that stitch sizes vary between knitting-start/knitting-end of one course for a knitted fabric, and the intermediate portion of the course, and proposes to correct the stitch density values in the knitting-start/knitting-end.
  • Patent Literatures 1 to 3 In the control of Patent Literatures 1 to 3, one course is taken as a unit, and an error in the current course is eliminated in the next course. Therefore, the error is not eliminated within one course, thus causing variations in the stitch size. If, for example, a yarn is changed, an extra yarn for a margin is arranged since a yarn cannot be changed exactly at a desired position, and the yarn for a margin needs to be absorbed with tuck stitches or the like.
  • the present invention is directed to a flat knitting machine including: at least two needle beds; a carriage that reciprocates on the needle beds and includes a stitch cam motor that changes a stitch density value of a stitch cam; a carrier that feeds a yarn to needles of the needle beds; a yarn feeding apparatus that feeds the yarn to the carrier; a sensor that measures a yarn length of the yarn fed from the yarn feeding apparatus; and a controller that controls the stitch cam motor based on a signal of the sensor and corrects the stitch density value, characterized in that the controller is configured to correct the stitch density value for each predetermined length that is shorter than one course in order to correct an error between a consumed yarn length and a target yarn length within a course of the carriage in which the error occurred.
  • the present invention is directed to a knitting method using a flat knitting machine including: at least two needle beds; a carriage that reciprocates on the needle beds and includes a stitch cam motor that changes a stitch density value of a stitch cam; a carrier that feeds a yarn to needles of the needle beds; a yarn feeding apparatus that feeds the yarn to the carrier; a sensor that measures a yarn length of the yarn fed from the yarn feeding apparatus; and a controller that controls the stitch cam motor based on a signal of the sensor and corrects the stitch density value, the method characterized by causing the controller to perform a step for correcting the stitch density value for each predetermined length that is shorter than one course so as to correct an error between a consumed yarn length and a target yarn length within a course of the carriage in which the error occurred.
  • the predetermined length that is shorter than one course is, for example, a knitting width of 5 cm or less, preferably 3 cm or less, more preferably 2 cm or less, especially preferably 1 cm or less, and most preferably the length of one stitch (length of one needle). Also, the length of one course corresponds to the knitting width of a knitted fabric. Since, according to the present invention, an error between a consumed yarn length and a target yarn length is corrected in a course in which the error occurred, a knitted fabric whose stitch size hardly varies is knitted. Also, if a yarn is changed, it is possible to change the yarn at a desired position. Note that, although it is preferable that errors occurred in one course be eliminated totally in the same course, part of the errors may be carried over to the next course.
  • the controller be configured to decrease the error to a value in a tolerable range within one course of the carriage. Accordingly, even if an accumulated error occurred in one course is carried over to the next course, the value of the accumulated error remains in the tolerable range. Even if a yarn is changed at the knitting-start or the like of the next course, the yarn change position is located at a desired position of the knitted fabric since the value of the accumulated error is low.
  • the controller correcting the stitch density value so that a yarn treating position in the yarn treating apparatus is located at a yarn change position on a knitted fabric.
  • an error in the consumed yarn length is, for example, about a fraction of the yarn length of one stitch, it is possible to arrange the yarn change position with an accuracy that is higher than the size of one stitch, and to change the yarn at a target change position. No tuck stitches or the like are needed for making the excess yarn absorbed.
  • the rear surface of the knitted fabric will be inconspicuous.
  • a yarn change position is located on the rear surface of the knitted fabric, that is, on a sinker loop in the case of, for example, the plain stitches in which sinker loops are arranged at the rear, the yarn change position is inconspicuous.
  • the controller be configured to correct the stitch density value based on a sum of a correction value used in proportional control for eliminating an error for each predetermined length that is shorter than one course and a correction value used in integral control for eliminating an accumulated value of the errors each occurred in the predetermined length that is shorter than one course.
  • the sum encompasses not only a sum of two correction values but also a modified sum of two correction values due to the restriction such as the upper limit of the correction value for the stitch density value, and the like.
  • the proportional control the error is quickly eliminated, and the stitch size is varied in a short interval.
  • the integral control the elimination of the error is slow but the variations in stitch size are distributed in a longer interval.
  • the controller be configured to increase the control constant of the integral control relative to that in another area if the stitch count to the end of the course is low and if the stitch count to the yarn change position is low. With this configuration, it is possible to reduce an error that is to be carried over to the next course, and to change the yarn exactly at a desired change position on the knitted fabric.
  • a configuration is also possible that, if the stitch count to the end of the course and the stitch count to the yarn change position are reduced to, for example, predetermined values or less, the controller increases the constant of the integral control as these counts are reduced.
  • a configuration is also possible that, if the stitch count to the end of the course and the stitch count to the yarn change position are reduced to predetermined values or less, the controller increases the control constant of the integral control by 50%, twofold, or the like relative to that in another area of the course.
  • the controller include: means for obtaining, by a loop length routine performed before actually knitting a knitted fabric, a change in the consumed yarn length between a knitting-start at a start of a course and an intermediate portion of the course, and a change between a knitting-end at an end of the course and the intermediate portion of the course, and converting the obtained changes into a correction value in the knitting-start and a correction value in the knitting-end; and means for correcting, when actually knitting the knitted fabric, a stitch density value with respect to the knitting-start based on a sum of the correction value in the knitting-start and a stitch density correction value for correcting an error between the consumed yarn length and a target yarn length, and correcting a stitch density value with respect to the knitting-end based on a sum of the correction value in the knitting-end and a stitch density correction value for correcting an error between the consumed yarn length and a target yarn length.
  • the sum encompasses not only a sum of two correction values but also a modified sum of two correction values due to the restriction such as the upper limit of the correction value for the stitch density value, and the like.
  • the correction values in the knitting-start and the knitting-end obtained by the loop length routine may be used during actual knitting of a knitted fabric without being modified, or may be modified, during actual knitting of the knitted fabric, based on a moving average or the like of errors in the knitting-starts and a moving average or the like of errors in the knitting-ends for a plurality of courses.
  • the means for converting the obtained changes into a correction value in the knitting-start and a correction value in the knitting-end corresponds to an auxiliary data memory and a CPU according to the embodiment, and the means for correcting stitch density values based on sums corresponds to the CPU according to the embodiment.
  • FIGS. 1 to 7 show a flat knitting machine 2 and a knitting method according to an embodiment.
  • the flat knitting machine denoted by the reference numeral 2 is provided with, for example, two or four needle beds 4.
  • a carriage 6 reciprocates on the needle beds 4 and operates the needles of the needle beds 4.
  • a yarn 18 is fed to the needles from carriers 8 and 9.
  • the operation of the needles caused by the carriage 6 refers to selecting needles for knit/tuck/miss stitches, or the like and to guiding the needles selected for knit and tuck stitches and the needles for performing transfer using a built-in cam system.
  • the cam system includes a cam, called a stitch cam, and a stitch cam motor for causing the stitch cam to slide.
  • the length by which the needles are drawn (the length by which the needles are retracted on the needle bed side) is changed.
  • the stitch loop length is changed in this way.
  • the stitch density value shows a positive value when the stitch cam is lowered to make stitches larger, and the stitch density value shows a negative value when the stitch cam is raised to make stitches smaller.
  • the carriage 6 carries the carriers 8 and 9, and a sensor (not shown) detects the position (needle number) of the carriage 6 with respect to the needle bed 4. Also, a stitch row that the carriage 6 creates with one stroke is defined as stitches for one course. The length of one course corresponds to the knitting width of a knitted fabric. Note that the carriers 8 and 9 may be self-propelled instead of being carried by the carriage 6.
  • the reference numeral 10 denotes a yarn feeding apparatus, and the yarn feeding apparatus feeds the carriers 8 and 9 with yarns 18 and 19.
  • the reference numeral 12 denotes a yarn treating apparatus, which is, for example, an apparatus that connects and changes the yarns, such as a knotter or a splicer, or an apparatus that dyes the yarn, such as an ink-jet printer.
  • a position at which the yarn is changed and a position at which the color of the yarn is changed by changing the dyeing color are collectively referred to as change positions.
  • the flat knitting machine 2 according to the embodiment knits a knitted fabric having color patterns with the use of a few carriers 8 and 9 by changing the yarn.
  • the flat knitting machine 2 obtains a knitted fabric that is not voluminous and is easy to wear, since the knitted fabric has, on its rear side, less number of yarns than that obtained by a color jacquard knitted fabric. Furthermore, the operations of the carriers 8 and 9 are simplified as compared with the case where an intarsia knitting is used, and the flat knitting machine 2 does not need a mechanism for stopping the carriers 8 and 9 exactly at predetermined positions.
  • the reference numeral 14 denotes a cone of the yarn, which may be a yarn cheese, or the like and serves as a supply source of the yarn.
  • the yarn treating apparatus 12 is disposed between the cone 14 (supply source of the yarn) and the yarn feeding apparatus 10.
  • the flat knitting machine 2, which includes the yarn feeding apparatus 10 and the yarn treating apparatus 12, is controlled by a controller 16.
  • FIG. 2 shows the yarn feeding apparatus 10 in detail.
  • the reference numeral 20 denotes a servomotor, and the servomotor drives a driving roller 22, and feeds the yarn 18 or the like between the driving roller 22 and a driven roller 24 to the carriers 8, 9, and the like via a guide roller 25 and a flexible arm 26.
  • the rotation speeds of the servomotor 20, the driven roller 24, and the like are monitored by, for example, an encoder 27, and the yarn length of the yarn fed from the driving roller 22 is obtained.
  • the arm 26 is a buffer for the yarn 18 or the like, the angle of the arm 26 is detected by an angle sensor 28, and the detected angle is converted into the yarn length of the yarn accumulated by the arm 26.
  • the yarn 18 or the like may be unwound from the cone 14 with a tension, and the rotation speed of the driven roller 24 may be monitored by the encoder.
  • the arm 26 may change to serve as a buffer of any yarn.
  • the yarn treating apparatus 12 is a knotter, a splicer, or the like that connects and changes the yarns 18 and 19 at, for example, a treating position 30, or may be an ink-jet printer or the like.
  • the purpose of connecting and changing the yarns is primary to change the color of the knitted fabric, and the yarns may be connected and changed when the remaining amount of the cone 14 is reduced. Also, the color of the yarn 18 or the like is changed by changing a dye to be sprayed using the ink-jet printer or its density.
  • a position at which the yarns are connected and changed or the dyeing color is changed is referred to as a yarn treating position 30.
  • the yarn length between the treating position 30 and the driving roller 22 is already known for the controller 16.
  • FIG. 3 shows a configuration of the controller 16, in which signals indicating an encoder value S1, an arm angle S2, a position S3 of the operating carrier, a needle number S4 of a needle operated by the carriage 6, a carriage running direction and speed S5, and the like are input into an input interface 31. Since the carriage 6 operates a plurality of needles at the same time, the needle number is assumed to be, for example, a needle number of a needle that has entered into the stitch cam shortly before, a needle number of a needle that has been selected shortly before, or the like.
  • a stitch loop length varies depending on whether or not the carriage running direction is equivalent to a direction in which the yarn 18 or the like is fed (whether the yarn is fed from the left side or the right side of FIG 1 )
  • the stitch density value is corrected based on the running direction and speed. If the yarn is fed from the upper part to the lower part of FIG. 1 , the direction in which the yarn is fed and the running direction of the carriage 6 cross at a right angle, hardly affecting each other, and thus correction based on the running direction and speed of the carriage 6 may be omitted.
  • a knitting data memory 32 has stored therein needle operation lines for knitting a knitted fabric, a stroke of the carriage 6, and the like, and it is clear from the needle operation lines what kind of stitches and how many stitches are knitted, how many stitches are present by the end of the course, and the like.
  • a target loop length memory 33 has stored therein target values of the loop lengths of one stitch for each knitting type (combinations of types of stitches, such as knit/tuck/miss, and types of knitting structures, such as the plain stitches, the rib stitches, or the jacquard stitches).
  • miss stitches a yarn runs only on the rear surface of a knitted fabric, but the yarn running on the rear surface is regarded as miss stitches and the stitch loop lengths for the miss stitches are stored in the target loop length memory 33.
  • An auxiliary data memory 34 has stored therein correction stitch density values for the knitting-start and the knitting-end.
  • a CPU 36 performs, based on signals from the input interface 31, knitting data, target loop lengths, and correction values for the knitting-start and the knitting-end, the following processing of:
  • the output interface 42 outputs instructions to a stitch cam motor (not shown) and the yarn treating apparatus 12. If, for example, the output interface 42 instructs the servomotor 20 of the yarn feeding apparatus 10 to feed a yarn for target loop lengths, the servomotor 20 will also be controlled.
  • the servomotor 20 is controlled by a signal of the angle sensor 28 if the angle of the arm 26 is fixed and the tension on the yarn is controlled so as to be constant.
  • a LAN interface 43 and a USB drive 44 are provided, and knitting data is accepted from the LAN, or by separating the yarn treating apparatus 12 from the flat knitting machine 2, the yarn treating apparatus 12 may be instructed via the LAN. Alternatively, knitting data may be accepted from the USB memory 44.
  • the target loop lengths of stitches may be designated together with the knitting data, or may be determined by the loop length routine shown in FIG. 4 using the flat knitting machine 2.
  • a knitted fabric is knitted while changing the stitch density values in multiple levels in which several courses are knitted for each stitch density value (Step 1).
  • a user selects the most appropriate stitch density value by evaluating the knitted fabric, and designates the stitch loop length at that time as the target loop length (Step 2).
  • changes in the actual loop length in the knitting-start and the knitting-end with respect to the loop length in the intermediate portion of the course are monitored using a signal or the like from the encoder 27 of the servomotor 20, and correction values for the knitting-start and the knitting-end are determined in order to eliminate this differences (Step 3). Since the knitting widths in the knitting-start and the knitting-end that are needed to be corrected also become clear by the loop length routine, it is possible to automatically determine the knitting widths in the knitting-start and the knitting-end for which correction is to be performed.
  • FIG. 5 shows processes for controlling the stitch loop length (control of the stitch cam motor) and for controlling the yarn treating apparatus 12 according to the embodiment.
  • a set-up yarn length determination process P1 a set-up yarn length is obtained based on the angle of the arm 26, the positions of the carriers 8, 9, and the like, the needle numbers, and the like, and the obtained set-up yarn length is stored in a set-up yarn length memory 39.
  • a loop length error calculation process P2 a consumed yarn length (actual loop length) for each stitch is obtained based on the length of the fed yarn that was obtained by the encoder 27, and a change in the set-up yarn length. Note that the difference between the actual loop length and the target loop length for each stitch is the error for each stitch.
  • the average error in the loop lengths refers to an average of errors in a range of a knitting width of, for example, 5 cm or less, preferably 3 cm or less, more preferably 2 cm or less, particularly preferably 1 cm or less.
  • a flat knitting machine with 8 mm knitting width for each needle is used, and an error in the loop length for each needle is obtained.
  • an accumulated value of the errors in the loop lengths is obtained.
  • an integral control constant determination process P4 a control constant of the integral control of PI control (proportional and integral control) for the stitch density value is changed based on the remaining stitch count to the end of the course, and the remaining stitch count to the yarn change position. If the remaining stitch count is reduced, the control constant is increased, and if the remaining stitch count is increased, the control constant is reduced so as to return to the normal value.
  • the end of the course is the end of the knitted fabric, and the stitches are inconspicuous there.
  • the stitching up is performed at the end of the course, and the stitched-up portion is inconspicuous even if the size of the stitches are not uniform.
  • the change position is arranged at an inconspicuous position of a sinker loop or the like on the rear surface of the knitted fabric. Note that, if needle loops are present on the rear surface of the knitted fabric, the yarn is changed at a needle loop.
  • the stitch cam motor is controlled by PI control, the PI control referring to a combination of:
  • the processes P1 to P3, and P5 are performed, for example, for each needle, that is, each stitch, or may be performed for each predetermined knitting width of 5 cm or less, 3 cm or less, 2 cm or less, 1 cm or less, or the like. Also, the process P4 is performed when the needle approaches the end of the course and the change position, and the process P6 starts when the set-up yarn length approaches the target yarn length to the change position.
  • FIG. 6 shows control of the loop length for each needle
  • the control may be performed, as described above, for a predetermined knitting width of 5 cm or less, 3 cm or less, 2 cm or less, 1 cm or less or the like.
  • the vertical axis indicates an accumulated error
  • the horizontal axis schematically indicates needle numbers.
  • Dead zones are provided for feedback control of an accumulated error and for feedback control of errors for respective needles, and in the dead zones, no stitch density value is changed for the errors.
  • the solid line indicates control excluding those shortly before the end of the course and shortly before the yarn change position, and the dashed line indicates controls shortly before the end of the course and shortly before the yarn change position. These lines differ from each other in values of the control constant of the integral control.
  • the stitch cam motor is controlled by changing the stitch density value using the integral control, and adding changes in the stitch density value using the proportional control.
  • the integral control is also used is that, only with the proportional control, the stitch density value for the error is changed abruptly and non-uniformity in the stitch sizes is noticeable. In the control indicated by the solid line, the accumulated error continues to increase until the needle number 6, and then the accumulated error slowly decreases to return to the dead zone at the needle number 10.
  • the loop length of a stitch is smaller than the target value at the needle numbers 7, 8, and 9, and thus the proportional control suppresses the integral control from eliminating the accumulated error, resulting in control in which variations in stitch size are less noticeable, as a whole, than in the case of simple integral control.
  • the control constant of the integral control is increased so that the accumulated error is not carried over to the next course and the accumulated error becomes 0 at the change position.
  • the results obtained when the control constant of the integral control is increased are indicated by the dashed line.
  • the accumulated error detected at the needle number 4 is quickly treated to return to the dead zone at, for example, the needle number 8.
  • FIG. 7 schematically shows a knitted fabric 70 to be knitted.
  • the reference numerals 71, 73, and 76 denote areas knitted by the same yarn, and the reference numerals 74 and 75 denote two types of areas knitted by another yarn.
  • Change lines 77 and 78 at which the yarn is changed are created along the border of the areas, as shown in the lower part of the drawing, and a change point 79 at which the yarn is changed is created at the end of the course, as shown in the left part of the drawing.
  • the changed position of the yarn is made inconspicuous, enabling realization of the designed color patterns.
  • the error from the target value on the knitting data at the yarn change position is reduced to a value that is shorter than one stitch loop, so that the change is performed at, for example, a sinker loop on the inconspicuous rear surface of the knitted fabric. With this measure, it is not necessary to treat excess stitches with tuck stitches or the like.
  • correction is performed in the case of a plain knitted fabric such that the stitch density value is increased in the knitting-start, and the stitch density value is decreased in the knitting-end. Also, in the case of tubular knitting, correction is performed such that the stitch density value is decreased in knitting-start, and the stitch density value is increased in knitting-end.
  • control according to the embodiment does not need to be implemented with respect to the entire knitted fabric.
  • the stitch density value may be corrected so that the accumulated error in the current course is eliminated in the next course.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Knitting Machines (AREA)

Claims (7)

  1. Flachstrickmaschine (2), die umfasst: wenigstens zwei Nadelbetten (4), einen Schlitten (6), der sich über den Nadelbetten (4) hin und her bewegt und einen Maschenschlossmotor enthält, der einen Maschendichtewert eines Maschenschlosses ändert, einen Fadenführer (8, 9), der einen Faden zu Nadeln der Nadelbetten (4) zuführt, eine Fadenzuführvorrichtung (10), die den Faden zu dem Fadenführer (8, 9) zuführt, einen Sensor (27), der eine Fadenlänge des von der Fadenzuführvorrichtung (10) zugeführten Fadens misst, und eine Steuereinrichtung (16), die den Maschenschlossmotor basierend auf einem Signal des Sensors (27) steuert und den Maschendichtewert korrigiert,
    dadurch gekennzeichnet, dass die Steuereinrichtung (16) konfiguriert ist zum Korrigieren des Maschendichtewerts für jede vorbestimmte Länge, die kürzer als eine Reihe ist, um einen Fehler zwischen einer verbrauchten Fadenlänge und einer Zielfadenlänge innerhalb eines Hubs des Schlittens (6), in welcher der Fehler aufgetreten ist, zu korrigieren.
  2. Flachstrickmaschine (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Steuereinrichtung (16) konfiguriert ist zum Verkleinern des Fehlers auf einen Wert in einem tolerierbaren Bereich innerhalb eines Hubs des Schlittens (6).
  3. Flachstrickmaschine (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass eine Fadenbehandlungsvorrichtung (12), die die Eigenschaften des Fadens durch das Verbinden und Wechseln von Fäden oder das Färben eines Fadens ändert, umfasst, und dass die Steuereinrichtung (16) den Maschendichtewert derart ändert, dass eine Fadenbehandlungsposition in der Fadenbehandlungsvorrichtung (12) an einer Fadenänderungsposition an einem Gestrick angeordnet ist.
  4. Flachstrickmaschine (2) nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Steuereinrichtung (16) konfiguriert ist zum Korrigieren des Maschendichtewerts basierend auf einer Summe aus einem Korrekturwert, der in einer Proportionalsteuerung für das Beseitigen eines Fehlers für jede vorbestimmte Länge, die kürzer als eine Reihe ist, verwendet wird, und aus einem Korrekturwert, der in einer Integralsteuerung für das Beseitigen eines akkumulierten Werts der Fehler, die jeweils in der vorbestimmten Länge, die kürzer als eine Reihe ist, aufgetreten sind, verwendet wird.
  5. Flachstrickmaschine (2) nach Anspruch 4, dadurch gekennzeichnet, dass die Steuereinrichtung (16) konfiguriert ist zum Vergrößern einer Steuerkonstante der Integralsteuerung relativ zu derjenigen in einem anderen Bereich, wenn die Maschenzahl bis zu dem Ende der Reihe klein ist und wenn die Maschenzahl zu der Fadenwechselposition klein ist.
  6. Flachstrickmaschine (2) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Steuereinrichtung (16) enthält:
    Mittel zum Erhalten, durch eine Schlaufenlängenroutine, die vor dem tatsächlichen Stricken eines Gestricks durchgeführt wird, einer Änderung in der verbrauchten Fadenlänge zwischen einem Strickstart am Beginn einer Reihe und einer mittleren Position der Reihe und einer Änderung zwischen einem Strickende am Ende der Reihe und der mittleren Position der Reihe, und zum Wandeln der erhaltenen Änderungen zu einem Korrekturwert an dem Strickstart und einem Korrekturwert an dem Strickende, und
    Mittel zum Korrigieren, beim tatsächlichen Stricken des Gestricks, eines Maschendichtewerts in Bezug auf den Strickstart basierend auf einer Summe aus dem Korrekturwert am Strickstart und aus einem Maschendichtekorrekturwert für das Korrigieren eines Fehlers zwischen der verbrauchten Fadenlänge und einer Zielfadenlänge und zum Korrigieren eines Maschendichtewerts in Bezug auf das Strickende basierend auf einer Summe aus dem Korrekturwert an dem Strickende und aus einem Maschendichtekorrekturwert für das Korrigieren eines Fehlers zwischen der verbrauchten Fadenlänge und einer Zielfadenlänge.
  7. Strickverfahren unter Verwendung einer Flachstrickmaschine (2), die umfasst: wenigstens zwei Nadelbetten (4), einen Schlitten (6), der sich über den Nadelbetten (4) hin und her bewegt und einen Maschenschlossmotor enthält, der einen Maschendichtewert eines Maschenschlosses ändert, einen Fadenführer (8, 9), der einen Faden zu Nadeln der Nadelbetten (4) zuführt, eine Fadenzuführvorrichtung (10), die den Faden zu dem Fadenführer (8, 9) zuführt, einen Sensor (27), der eine Fadenlänge des von der Fadenzuführvorrichtung (10) zugeführten Fadens misst, und eine Steuereinrichtung (16), die den Maschenschlossmotor basierend auf einem Signal des Sensors (27) steuert und den Maschendichtewert korrigiert,
    wobei das Verfahren dadurch gekennzeichnet ist, dass die Steuereinrichtung (16) einen Schritt zum Korrigieren des Maschendichtewerts für jede vorbestimmte Länge, die kürzer als eine Reihe ist, um einen Fehler zwischen einer verbrauchten Fadenlänge und einer Zielfadenlänge innerhalb eines Hubs des Schlittens (6), in welcher der Fehler aufgetreten ist, zu korrigieren.
EP14020020.5A 2013-03-05 2014-02-27 Flachstrickmaschine und Strickverfahren unter Verwendung der Flachstrickmaschine Active EP2775020B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013043397A JP6108882B2 (ja) 2013-03-05 2013-03-05 横編機と横編機での編成方法

Publications (2)

Publication Number Publication Date
EP2775020A1 EP2775020A1 (de) 2014-09-10
EP2775020B1 true EP2775020B1 (de) 2016-04-06

Family

ID=50193203

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14020020.5A Active EP2775020B1 (de) 2013-03-05 2014-02-27 Flachstrickmaschine und Strickverfahren unter Verwendung der Flachstrickmaschine

Country Status (4)

Country Link
EP (1) EP2775020B1 (de)
JP (1) JP6108882B2 (de)
KR (1) KR101569011B1 (de)
CN (1) CN104032472B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105648647B (zh) * 2015-12-31 2017-10-10 福建睿能科技股份有限公司 横机及其机头定位方法
CN106774006B (zh) * 2017-01-22 2023-12-29 成都图灵创想科技有限责任公司 电脑横机撞针检测装置及方法
CN106835478B (zh) * 2017-02-28 2019-10-29 成都图灵创想科技有限责任公司 电脑横机换色方法及装置
JP7460477B2 (ja) 2020-08-05 2024-04-02 株式会社島精機製作所 糸管理システム
CN113337955B (zh) * 2021-06-02 2023-05-02 宁波兄弟服饰有限公司 基于定量标记激光测长的纬编针织物密度检测装置及方法
CN116555974B (zh) * 2023-06-29 2023-12-26 张家港市金龙腾针织机械有限公司 一种电脑横机成圈的智能控制系统

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300240A1 (de) * 1983-01-05 1984-07-12 Universal Maschinenfabrik Dr. Rudolf Schieber GmbH & Co KG, 7081 Westhausen Verfahren und einrichtung zum erfassen und korrigieren der laenge eines auf einer flachstrickmaschine entstehenden strickstuecks
JP2952391B2 (ja) * 1991-03-29 1999-09-27 株式会社 島精機製作所 横編み編成における編糸量制御調整方法
JP2816784B2 (ja) * 1992-06-17 1998-10-27 株式会社島精機製作所 横編機の糸加工位置制御方法および装置
JPH06272141A (ja) * 1993-03-16 1994-09-27 Tsudakoma Corp 編み地制御装置
KR100351612B1 (ko) * 1994-09-02 2002-12-26 가부시키가이샤 시마세이키 세이사쿠쇼 횡편기에서의실길이제어방법과그장치
JP3085638B2 (ja) * 1995-01-23 2000-09-11 株式会社島精機製作所 横編機における糸長制御装置
JP2001055652A (ja) * 1999-08-13 2001-02-27 Tsudakoma Corp 横編み機における編み糸量制御方法
JP3603031B2 (ja) 2001-01-31 2004-12-15 株式会社島精機製作所 給糸装置
EP1548163B1 (de) 2002-07-24 2012-12-05 Shima Seiki Manufacturing Limited GARNZUFüHRER FüR FLACHSTRICKMASCHINE
CN100469963C (zh) * 2003-03-07 2009-03-18 株式会社岛精机制作所 横机的纱长控制方法及装置
JP4366312B2 (ja) 2004-12-27 2009-11-18 株式会社島精機製作所 度目調整機能付きの横編機と、編成方法、及び編成プログラム
JP5414668B2 (ja) * 2008-05-02 2014-02-12 株式会社島精機製作所 横編機でのループ長ルーチンの設定装置と設定プログラム
WO2010021151A1 (ja) * 2008-08-22 2010-02-25 株式会社島精機製作所 横編機
WO2010143498A1 (ja) * 2009-06-09 2010-12-16 株式会社島精機製作所 編機用の糸送り装置と糸送り方法
JP5698491B2 (ja) * 2010-10-08 2015-04-08 株式会社島精機製作所 横編機での糸長制御装置と制御方法

Also Published As

Publication number Publication date
JP6108882B2 (ja) 2017-04-05
KR20140109290A (ko) 2014-09-15
JP2014169518A (ja) 2014-09-18
CN104032472B (zh) 2016-04-13
KR101569011B1 (ko) 2015-11-13
CN104032472A (zh) 2014-09-10
EP2775020A1 (de) 2014-09-10

Similar Documents

Publication Publication Date Title
EP2775020B1 (de) Flachstrickmaschine und Strickverfahren unter Verwendung der Flachstrickmaschine
EP1867768B1 (de) Verfahren zur herstellung zylinderförmiger ware auf einer strickmaschine und die strickmaschine
EP3315642B1 (de) Plattier-strickverfahren und flachstrickmaschine für das verfahren
US7055349B2 (en) Yarn feeding device for flat knitting machine
EP1832674B1 (de) Flachstrickmaschine mit gezielter dichteeinstellung, strickverfahren und strickprogramm
US6857294B2 (en) Method for knitting intarsia pattern knitting fabric and knitting program producing device therefor
KR20060132662A (ko) 인타샤 패턴의 편성방법과 편성포, 니트 디자인 장치및 편성 프로그램
US5279133A (en) Circular knitting machine for making plush fabric
CN105019121A (zh) 制造具有可变紧缩的针织品、袜类纺织物品或无缝物品的方法
JP5963393B2 (ja) 横編機
JP2014169518A5 (de)
KR101541317B1 (ko) 탄성사 사용의 편성포 편성장치 및 방법
CN109518352B (zh) 用于对经编机进行准备的方法和经编机
JP5881412B2 (ja) 横編機用の編成データの生成方法とその装置
EP2492382B1 (de) Strickdesignvorrichtung
WO2008016028A1 (fr) Appareil de commande de longueur de fil et procédé de commande et programme de commande dans un métier à mailles cueillies
KR101378725B1 (ko) 횡편기
EP2439322B1 (de) Garnlängensteuervorrichtung und Steuerverfahren in einer Flachstrickmaschine
CN113265752B (zh) 编织物的编织方法
JP2020133009A (ja) 歯口隙間の大きさが変更可能な横編機構造

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140227

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20150108

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150904

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 787951

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160415

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014001310

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Ref country code: NL

Ref legal event code: MP

Effective date: 20160406

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 787951

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160706

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160806

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160707

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160808

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014001310

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

26N No opposition filed

Effective date: 20170110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170228

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170228

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20171031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170227

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20140227

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160406

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20231229

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20240111

Year of fee payment: 11