EP2502865B1 - Spulenwickler - Google Patents

Spulenwickler Download PDF

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Publication number
EP2502865B1
EP2502865B1 EP10831295.0A EP10831295A EP2502865B1 EP 2502865 B1 EP2502865 B1 EP 2502865B1 EP 10831295 A EP10831295 A EP 10831295A EP 2502865 B1 EP2502865 B1 EP 2502865B1
Authority
EP
European Patent Office
Prior art keywords
yarn
core tube
supply bobbin
yarn supply
bobbin
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
EP10831295.0A
Other languages
English (en)
French (fr)
Other versions
EP2502865A1 (de
EP2502865A4 (de
Inventor
Yasunobu Tanigawa
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.)
Murata Machinery Ltd
Original Assignee
Murata Machinery Ltd
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Publication date
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Publication of EP2502865A1 publication Critical patent/EP2502865A1/de
Publication of EP2502865A4 publication Critical patent/EP2502865A4/de
Application granted granted Critical
Publication of EP2502865B1 publication Critical patent/EP2502865B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/02—Methods or apparatus in which packages do not rotate
    • B65H49/04—Package-supporting devices
    • B65H49/06—Package-supporting devices for a single operative package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/22—Guides for filamentary materials; Supports therefor adapted to prevent excessive ballooning of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the present invention relates to a configuration for detecting a core tube length of a yarn supply bobbin that is supplied to a yarn winding machine.
  • JP1231769(A ) disclosing such a configuration that a sensor for detecting the amount of remaining yarn remaining on a yarn supply bobbin is provided and the amount of remaining yarn is calculated based on a detection signal of the sensor.
  • a signal is generated when the amount of yarn of the yarn supply bobbin falls below a predetermined amount.
  • the amount of yarn at a time of start of the winding is preliminarily inputted to a yarn winding machine, in order to calculate the amount of remaining yarn remaining on the yarn supply bobbin.
  • the amount of yarn wound on the yarn supply bobbin varies depending on the length of a core tube on which the yarn is wound. Accordingly, if a kind (the length of the core tube) of the yarn supply bobbin to be subjected to a winding operation is different, a set value of the amount of wound yarn (the core tube length) has to be changed.
  • US 5 142 159 A discloses a yarn winding machine according to the preamble of claim 1. Further, from EP 2 014 596 A2 , it is already known to provide a yarn winding machine with a bobbin set part for setting therein a yarn supplied bobbin having a yarn wound on a core tube thereof, wherein also sensors are provided to measure the correct angle of the core tube of the bobbin.
  • the present invention is made in view of the circumstances described above, and an object of the present invention is to provide a yarn winding machine configured to detect a core tube length of a yarn supply bobbin to thereby correctly obtain the amount of yarn wound on the yarn supply bobbin.
  • a yarn winding machine configured as follows. That is, a yarn winding machine includes a bobbin set part, a winding part, and a core tube detection part.
  • a yarn winding machine includes a bobbin set part, a winding part, and a core tube detection part.
  • a yarn supply bobbin having a yarn wound on a core tube thereof is set.
  • the winding part winds, into a package, a yarn drawn out from the yarn supply bobbin.
  • the core tube detection part detects a core tube length of the yarn supply bobbin set in the bobbin set part.
  • the core tube length of the yarn supply bobbin can be detected by the core tube detection part. This can save the trouble of inputting a set value of the core tube length to the yarn winding machine, thus reducing a burden on an operator. Additionally, a value obtained by actual measurement of the core tube length is used for a control. This can avoid occurrence of an inappropriate control due to an input error, as compared with a conventional manual input.
  • the yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes a storage part and an updating part.
  • the storage part stores the core tube length detected by the core tube detection part.
  • the updating part updates the core tube length stored in the storage part with a newly detected core tube length.
  • the core tube length of the yarn supply bobbin set in the yarn winding machine is once detected and stored in the storage part, then the core tube length can be easily obtained by referring to this storage content and can be used for various kinds of calculations. Even in a case where the core tube length set in the yarn winding machine is not constant, the yarn can be appropriately wound flexibly according to a change in the core tube length, because the updating part updates the content of the storage part each time the core tube is set.
  • the yarn winding machine is configured as follows. That is, the yarn winding machine includes a driving part and a calculation part.
  • the driving part is configured to move the core tube detection part in a longitudinal direction of the core tube and to control the amount of movement thereof.
  • the calculation part calculates the core tube length based on the amount of movement of the core tube detection part.
  • the core tube length can be easily and correctly calculated based on the amount of movement of the core tube detection part moved by the driving part.
  • the yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes an unwinding assist device for controlling a balloon that occurs when the yarn is drawn out from the yarn supply bobbin.
  • the unwinding assist device includes a contact member configured to be in contact with the balloon, and a chase portion detection part for detecting a chase portion of the yarn supply bobbin.
  • the driving part moves the contact member in the longitudinal direction of the core tube, and thereby moves the core tube detection part integrally with the contact member.
  • a function for correctly detecting the core tube length can be achieved by a small number of parts, because the configuration of the unwinding assist device for controlling the balloon is utilized. Additionally, the amount of remaining yarn of the yarn supply bobbin can be easily calculated based on the position of the chase portion relative to the core tube length. Therefore, even in a case where the yarn supply bobbin that is not full is set in the bobbin set part, the amount of remaining yarn of this yarn supply bobbin can be appropriately calculated.
  • the yarn winding machine preferably includes a driving force conversion mechanism for converting rotation of a motor shaft included in a motor that serves as the driving part into linear movement of the core tube detection part.
  • the core tube detection part can be linearly moved. Therefore, the core tube length can be precisely measured.
  • the yarn winding machine is preferably configured as follows. That is, the yarn winding machine includes a tension applying device for applying a tension to the yarn being wound into the package.
  • the tension applying device performs a tension control in accordance with the core tube length detected by the core tube detection part.
  • the core tube length of the yarn supply bobbin set in the bobbin set part is actually measured and used for the control, and thereby the tension control more accurately reflecting a real status can be performed.
  • the yarn winding machine is preferably includes a determination part for determining whether or not the yarn supply bobbin is out of a set position in the bobbin set part based on a detection signal of the core tube detection part.
  • a function for determining whether or not the yarn supply bobbin is set in an appropriate position can be achieved by a simple configuration using the core tube detection part.
  • the determination part determines that the yarn supply bobbin is out of the set position in the bobbin set part, a winding operation of the winding part is suspended.
  • the yarn winding machine preferably includes a notification section for notifying a deviation of the yarn supply bobbin from the set position in the bobbin set part.
  • An automatic winder (yarn winding machine) of this embodiment includes a plurality of winder units 10 arranged side by side, and a machine control apparatus 90 arranged at one end in a direction in which the winder units 10 are arranged side by side.
  • the machine control apparatus 90 includes a display screen (notification section) 91 configured to display a status of a winding operation of each winder unit 10.
  • Each of the winder units 10 includes a unit frame 11 ( FIG. 1 ) provided at one of left and right sides in a front view, and a winding unit main body 16 provided lateral to the unit frame 11.
  • the winder unit 10 also includes a unit control section 50 for controlling each part of the winding unit main body 16.
  • the winding unit main body 16 includes a winding part 17 composed of a cradle 23 that is configured to have the winding bobbin 22 mounted thereon and a traverse drum 24 that traverses the yarn 20 and drives the winding bobbin 22.
  • the winding unit main body 16 also includes various devices provided in a yarn travel path between the yarn supply bobbin 21 and the traverse drum 24. To be specific, in the yarn travel path, an unwinding assist device 12, a tension applying device 13, a yarn joining device (yarn joining part) 14, and a clearer head 49 of a clearer (yarn quality measuring instrument) 15 are provided in this order from the yarn supply bobbin 21 side to the traverse drum 24 side.
  • a magazine type feeder 60 to which an operator feeds the yarn supply bobbin 21 is arranged at the front side of the winding unit main body 16.
  • the magazine type feeder 60 includes a magazine holder 61 that obliquely extends out from a lower portion of the winder unit 10 upward and frontward, and a bobbin storage 62 that is mounted at the distal end of the magazine holder 61.
  • the bobbin storage 62 includes a magazine can 63.
  • a magazine can 63 In the magazine can 63, a plurality of storage holes are formed in a circular arrangement. In each of the storage holes, a feed bobbin 70 can be set in an inclined posture.
  • the magazine can 63 is configured to intermittently perform rotational feed driving by means of a motor not shown. By the intermittent driving of the magazine can 63 and an opening-closing operation of a control valve, not shown, provided in the magazine can 63, the feed bobbin 70 can be dropped one by one onto a bobbin supply path, not shown, provided in the magazine holder 61.
  • the feed bobbin 70 supplied to the bobbin supply path is guided to a yarn supply bobbin holder (bobbin set part) 71 while being kept in the inclined posture.
  • the yarn supply bobbin holder 71 includes turning means not shown for, after the feed bobbin 70 is received from the bobbin supply path, turning so as to raise the feed bobbin 70 from the inclined posture to an upright posture. This enables the feed bobbin 70 to be appropriately supplied, as the yarn supply bobbin 21, to a set position (position shown in FIGS. 1 and 2 ) located in a lower portion of the winding unit main body 16, so that the winder unit 10 performs the winding operation.
  • the automatic winder of this embodiment is configured to form the package 30 while performing yarn joining on yarn of a plurality of yarn supply bobbins 21.
  • the shape of the yarn supply bobbin 21 used is not necessarily exactly constant. That is, the size of a core tube of the yarn supply bobbin 21 is set so as to satisfy a predetermined condition (for example, that the length of the core tube is within a predetermined range), but it may slightly vary depending on a manufacturer or the like. In this respect, in this embodiment, even in a case where the yarn supply bobbins 21 in which the lengths of the core tubes are variously different are set in the magazine can 63 and used, an appropriate control can be performed to wind the yarn, as detailed later.
  • the unwinding assist device 12 assists unwinding of the yarn 20 by bringing a movable member 76 into contact with a balloon formed above the yarn supply bobbin 21 by means of rotation and centrifugal force of the yarn unwound from the yarn supply bobbin 21 to thereby appropriately control the size of the balloon.
  • a core tube detection sensor 81 for detecting the length of a core tube 95 of the yarn supply bobbin 21 is mounted.
  • the unit control section 50 is configured to calculate a core tube length of the yarn supply bobbin 21 set in the yarn supply bobbin holder 71, based on a detection signal from the core tube detection sensor 81, and to set the amount of wound yarn wound on the yarn supply bobbin 21 based on the core tube length thus calculated. Configurations of the unwinding assist device 12 and the core tube detection sensor 81 and a detailed process of the unit control section 50 will be described later.
  • the tension applying device 13 applies a predetermined tension to the traveling yarn 20.
  • the tension applying device 13 is configured as gate type one in which movable comb teeth are arranged relative to fixed comb teeth.
  • the movable comb teeth are configured to be rotated by a rotary solenoid such that the comb teeth can be brought into engagement with or disengagement from each other.
  • the tension of the yarn being wound is controlled by the tension applying device 13, and thereby the quality of the package 30 can be improved.
  • the tension applying device 13 is electrically connected to a tension applying device control section 82.
  • tension applying device control section 82 By an electrical control signal generated by the tension applying device control section 82, the strength of the tension applied to the yarn 20 by the tension applying device 13 is controlled (tension control).
  • the tension applying device control section 82 performs the tension control in accordance with the amount of remaining yarn remaining on the yarn supply bobbin 21. More specifically, the tension applying device control section 82 controls the tension applying device 13 such that an increased force is applied to the yarn 20, in an initial stage of an unwinding operation of the yarn supply bobbin 21 in a full wound state (when a large amount of yarn remains). On the other hand, the tension applying device control section 82 controls the tension applying device 13 such that an weakened tension is applied to the yarn 20, in a late stage of the unwinding operation of the yarn supply bobbin 21 (when a small amount of yarn remains). This can suppress a tension increase which would occur when the amount of yarn remaining on the yarn supply bobbin 21 decreases, and thus the tension of the yarn 20 is stabilized.
  • the yarn joining device 14 joins a lower yarn of the yarn supply bobbin 21 to an upper yarn of the package 30.
  • a fluid such as a compressed air, or mechanical one, may be used.
  • the clearer 15 includes the clearer head 49 in which a sensor for detecting the diameter of the yarn 20 is arranged, and an analyzer 52 for processing a yarn diameter signal outputted by the sensor.
  • the clearer 15 monitors the yarn diameter signal supplied from the sensor, to thereby detect a yarn defect (yarn fault) such as a slub.
  • a cutter 39 is arranged near the clearer head 49, for cutting the yarn 20 when the clearer 15 detects a yarn defect.
  • a lower yarn guide pipe 25 for catching and guiding the lower yarn of the yarn supply bobbin 21 and an upper yarn guide pipe (yarn end catching part) 26 for catching and guiding the upper yarn of the package 30 are provided at the lower and upper sides of the yarn joining device 14, respectively.
  • a suction port 32 is formed at the distal end of the lower yarn guide pipe 25, and a suction mouth 34 is provided at the distal end of the upper yarn guide pipe 26.
  • An appropriate negative pressure source is connected to each of the lower yarn guide pipe 25 and the upper yarn guide pipe 26, thus applying a suction flow to the suction port 32 and the suction mouth 34.
  • the suction port 32 of the lower yarn guide pipe 25 catches the lower yarn at a position shown in FIGS. 1 and 2 , and then rotates upward around a shaft 33 to thereby guide the lower yarn to the yarn joining device 14.
  • the upper yarn guide pipe 26 rotates upward around a shaft 35 from a position shown in FIGS. 1 and 2 , thus catching, by the suction mouth 34, the upper yarn unwound from the package 30 that is reversed by a drum driving motor 53.
  • the upper yarn guide pipe 26 rotates downward around the shaft 35, to thereby guide the upper yarn to the yarn joining device 14.
  • the yarn joining device 14 joins the lower yarn and the upper yarn to each other.
  • the yarn unwound from the yarn supply bobbin 21 is wound on the winding bobbin 22 that is arranged at the downstream side of the yarn joining device 14.
  • the winding bobbin 22 is driven in rotation by rotational driving of the traverse drum 24 that is opposed to the winding bobbin 22.
  • a traverse groove 27 is formed in an outer peripheral surface of the traverse drum 24, and this traverse groove 27 enables the yarn 20 to be traversed across a predetermined width.
  • the traverse drum 24 is coupled to a motor shaft of the drum driving motor (drum rotational driving section) 53, and an operation of the drum driving motor 53 is controlled by a motor control section 54.
  • the motor control section 54 is configured to perform a control for operating and stopping the drum driving motor 53 based on a signal supplied from the unit control section 50.
  • a rotation sensor 42 is mounted to the traverse drum 24, and the rotation sensor 42 is electrically connected to the analyzer 52 provided in the clearer 15.
  • the rotation sensor 42 is configured as, for example, a rotary encoder, and configured to transmit a rotation pulse signal to the analyzer 52 each time the traverse drum 24 is rotated through a predetermined angle.
  • the analyzer 52 obtains a yarn winding speed based on the number of rotation pulse signals inputted per unit time, and uses it for the determination of a yarn defect.
  • the unit control section 50 calculates the amount of wound yarn based on the rotation pulse signal that is obtained via the analyzer 52. The amount of wound yarn is also used for the calculation of the amount of remaining yarn remaining on the yarn supply bobbin 21.
  • a bobbin is supplied from the magazine type feeder 60 to the yarn supply bobbin holder 71, and then the winding bobbin 22 is driven to wind, on the winding bobbin 22, the yarn 20 unwound from the yarn supply bobbin 21, so that the package 30 having a predetermined length is formed.
  • the unwinding assist device 12 of this embodiment includes, as a main configuration, a fixed member 75, a driving force conversion mechanism 85, a movable member 76, a stepping motor (driving part) 79, and a chase portion detection sensor 80.
  • the core tube detection sensor 81 is provided in the unwinding assist device 12.
  • the fixed member 75 is fixed to the unit frame 11.
  • a restriction part (not shown) for controlling the balloon is formed below the fixed member 75.
  • the yarn drawn out from the yarn supply bobbin 21 is guided through the restriction part to the tension applying device 13.
  • the driving force conversion mechanism 85 is for converting a rotation-direction force of the stepping motor 79 into a line-direction force, and includes an elevator part 78 and a screw shaft 77.
  • the screw shaft 77 is arranged in the vertical direction (that is, a direction parallel to a longitudinal direction of the yarn supply bobbin 21 being set), and supported in a rotatable manner.
  • the elevator part 78 has a substantially inverted-U shape in a front view.
  • the elevator part 78 can hold the movable member (contact member) 76 having a cylindrical shape.
  • the elevator part 78 is supported on a mounting member 74.
  • the mounting member 74 is cut to form a screw hole therein, and the screw shaft 77 is screwed into the screw hole so that the elevator part 78 is mounted to the screw shaft 77.
  • a motor shaft of the stepping motor 79 is coupled to one end portion of the screw shaft 77. Movement of the elevator part 78 in a rotation direction is restricted by appropriate means, in order to prevent the elevator part 78 from rotating integrally with the screw shaft 77.
  • the stepping motor 79 is driven to rotate the screw shaft 77, and thereby the elevator part 78 moves upward or downward along the axial direction of the screw shaft 77.
  • the stepping motor 79 is appropriately controlled to cause the movable member 76 (elevator part 78) to wait in a waiting position located above the yarn supply bobbin 21.
  • the stepping motor 79 is controlled to cause the movable member 76 to move down from the waiting position and estabilish a predetermined positional relationship relative to the chase portion of the yarn supply bobbin 21.
  • the chase portion means an inclined part of a yarn layer formed on the yarn supply bobbin 21 that is positioned at the unwinding side of the yarn 20.
  • the stepping motor 79 is electrically connected to the stepping motor control section 83.
  • the stepping motor control section 83 controls the stepping motor 79 by means of a drive pulse signal.
  • the stepping motor control section 83 is connected to the unit control section 50, and the unit control section 50 can perform the control of the respective parts such as the yarn joining device 14 and the clearer 15 in conjunction with the control of the unwinding assist device 12.
  • the chase portion detection sensor (chase portion detection part) 80 is for detecting the chase portion of the yarn supply bobbin 21.
  • the chase portion detection sensor 80 is configured as a transmission type photosensor including a light emitting part 80a and a light receiving part 80b. A detection signal of detection by the chase portion detection sensor 80 is inputted to the unit control section 50.
  • the core tube detection sensor 81 (core tube detection part) is for detecting the length of the core tube 95 of the yarn supply bobbin 21.
  • the core tube detection sensor 81 is, similarly to the chase portion detection sensor 80, configured as a transmission type photosensor including a light emitting part 81a and a light receiving part 81b.
  • the core tube detection sensor 81 is arranged at the center of the elevator part 78, in order to detect the center of the core tube 95.
  • Both the core tube detection sensor 81 and the chase portion detection sensor 80 are arranged in the elevator part 78, and the two sensors move up and down simultaneously with the upward and downward movement of the elevator part 78.
  • a detection signal of detection by the core tube detection sensor 81 is inputted to the unit control section 50.
  • the unit control section 50 includes a processing part 84 for performing various processes based on the detection signal of the core tube detection sensor 81.
  • the processing part 84 includes a calculation part 87, an updating part 88, and a determination part 89.
  • the unit control section 50 also includes a storage part 86 for storing the core tube length that is calculated based on the detection signal of the core tube detection sensor 81.
  • the calculation part 87 performs a process of calculating the core tube length based on the driving amount of the stepping motor 79 (the amount of movement of the core tube detection sensor 81 moved by the stepping motor 79). More specifically, the unit control section 50 firstly controls the stepping motor 79, to move the elevator part 78 to the waiting position. Then, while monitoring a state of the core tube detection sensor 81, the unit control section 50 rotates the stepping motor 79 to move down the elevator part 78 at a predetermined speed. At this time, the number of drive pulses transmitted to the stepping motor 79 is counted by an appropriate counter.
  • the core tube detection sensor 81 detects the core tube, and then the calculation part 87 calculates a downward movement distance (distance moved) of the core tube detection sensor 81 based on a drive pulse count value of the stepping motor 79 (that is, a rotation angle of the screw shaft 77) and the pitch of the screw shaft 77. Then, the calculation part 87 subtracts the obtained downward movement distance from a predetermined distance, and thereby obtains the core tube length of the yarn supply bobbin 21.
  • the unit control section 50 controls the stepping motor 79 so as to continuously move down the elevator part 78 even after the core tube detection sensor 81 detects the core tube. Then, at a time point when the elevator part 78 moves down through a certain distance from the waiting position, the chase portion detection sensor 80 detects the chase portion, and thus the calculation part 87 obtains the position of the chase portion in substantially the same manner as the case of the core tube detection sensor 81 described above.
  • the calculation part 87 obtains the core tube length and the position of the chase portion, and then calculates the amount of wound yarn (the amount of remaining yarn) of the yarn supply bobbin 21 at a time of start of the winding.
  • the amount of remaining yarn can be obtained by applying an appropriate function based on the position of the chase portion relative to the core tube length.
  • the updating part 88 After the calculation part 87 obtains the core tube length, the updating part 88 performs a process of overwriting (updating) the core tube length stored in the storage part 86 with the calculated core tube length. Thereby, each time the yarn supply bobbin 21 is supplied to the winding unit main body 16, the core tube length of this yarn supply bobbin 21 can be stored again in the storage part 86.
  • the determination part 89 performs a determination process of determining whether or not the yarn supply bobbin 21 is out of the set position. Details of the determination process performed by the determination part 89 will be described later.
  • the core tube detection sensor 81 transmits to the unit control section 50 a detection signal indicating the detection of the core tube 95.
  • the unit control section 50 receives this detection signal, and then the calculation part 87 calculates the core tube length based on this detection signal.
  • the updating part 88 stores, in the storage part 86, the core tube length thus calculated.
  • the elevator part 78 continuously moves down, and in turn, the chase portion of the yarn supply bobbin 21 is detected by the chase portion detection sensor 80.
  • the unit control section 50 receives the detection signal of the chase portion detection sensor 80, and then the calculation part 87 calculates the position of the chase portion and additionally calculates the amount of wound yarn wound on the yarn supply bobbin 21 based on the position of the chase portion thus obtained and the core tube length stored in the storage part 86.
  • the amount of yarn of the yarn supply bobbin 21 supplied to the yarn supply bobbin holder 71 is not always constant (full amount).
  • the yarn supply bobbin 21 that is not full is supplied to the winding unit main body 16 for the following reasons. That is, in a possible case, for example, a yarn supply bobbin 21 that is full is supplied to the winding unit main body 16 and the winding operation is smoothly performed up to a certain time point, but from the middle of the operation, an error in the yarn joining frequently occurs and therefore the yarn supply bobbin 21 is discharged from the winding unit main body 16 even before the yarn is wholly unwound.
  • an operator takes measures for, for example, eliminating a cause of the error in the yarn joining with respect to the discharged yarn supply bobbin 21 (the yarn supply bobbin that is not full), and then puts this yarn supply bobbin 21 into the magazine can 63 again.
  • this yarn supply bobbin 21 that is not full is supplied to the winding unit main body 16.
  • the amount of wound yarn (the amount of remaining yarn) can be appropriately calculated because the core tube length and the position of the chase portion are actually measured.
  • the yarn joining device 14 joins the yarn of the package 30 and the yarn of the yarn supply bobbin 21 to each other, and then the winding is started.
  • the unit control section 50 performs a control for moving the elevator part 78 of the unwinding assist device 12 based on the detection signal inputted from the chase portion detection sensor 80. More specifically, the chase portion detection sensor 80 detects the downward movement of the chase portion that occurs along with the unwinding of the yarn from the yarn supply bobbin 21, and in accordance with it, the stepping motor 79 is driven to move down the movable member 76. Thereby, the size of the balloon occurring when the yarn is unwound from the yarn supply bobbin 21 can be appropriately controlled.
  • the unit control section 50 calculates the amount of currently remaining yarn based on the amount of wound yarn of the yarn supply bobbin 21 calculated by the calculation part 87 and the amount of yarn (the amount of wound yarn) wound from this yarn supply bobbin 21 into the package 30, and controls the tension applying device 13 based on the amount of remaining yarn thus obtained. As a result, a control for suppressing a tension increase can be correctly performed when the amount of remaining yarn of the yarn supply bobbin 21 decreases. Thus, the quality of the package 30 can be improved.
  • the unit control section 50 performs the process of measuring the core tube length and obtains the core tube length of the newly supplied yarn supply bobbin 21, to start the winding operation. To the tension control performed at this time, the value of the newly obtained core tube length is applied.
  • a shortest core tube length (a lower limit value of the core tube length) that allows the winder unit 10 to appropriately perform the winding operation is preliminarily set.
  • whether or not the yarn supply bobbin 21 is appropriately set in the set position is determined based on this shortest core tube length.
  • a driving amount of the stepping motor 79 necessary for moving the core tube detection sensor 81 from the above-mentioned waiting position to a position corresponding to the shortest core tube length is preliminarily stored.
  • the determination part 89 determines that an erroneous setting is occurring.
  • the unit control section 50 displays it on the display screen 91 of the machine control apparatus 90, and stops the winding operation of the winding part 17.
  • the yarn supply bobbin 21 is normally set in the yarn supply bobbin holder 71 in the beginning but the yarn supply bobbin 21 falls out of the set position in the yarn supply bobbin holder 71 during the winding operation.
  • the yarn is pulled upward while being unwound from the yarn supply bobbin 21, and accordingly the yarn supply bobbin 21 itself is pulled upward so that the yarn supply bobbin 21 escapes and rises from the yarn supply bobbin holder 71.
  • the determination part 89 is configured to have a function for checking whether or not the yarn supply bobbin 21 is set in an appropriate position in the yarn supply bobbin holder 71.
  • a set position checking process performed by the determination part 89 is conducted by using the movement of the movable member 76 caused in the yarn joining operation.
  • the unit control section 50 moves up the movable member 76 to the waiting position, in order to perform the yarn joining operation described above.
  • the movable member 76 is moved down to the original position, in order to return the balloon to a controllable state again at a time of the yarn unwinding.
  • the set position checking process for checking the set position of the yarn supply bobbin 21 is performed based on the detection signal of the core tube detection sensor 81 detected at a time when this downward movement occurs. In the following, this determination process will be described.
  • the determination part 89 measures the core tube length in the same procedure as when the yarn supply bobbin 21 is newly set. Then, the obtained core tube length is compared with the core tube length (the core tube length stored in the storage part 86) measured at a time when the yarn supply bobbin 21 is newly set. Since the core tube length of the same yarn supply bobbin 21 is measured, the two measurement values should be coincident. However, for example, if the yarn supply bobbin 21 is rising as mentioned above, the measurement values of the core tube length are not coincident.
  • the determination part 89 determines that the yarn supply bobbin 21 is out of the set position.
  • the detected core tube length is different from the original value. Accordingly, in a case as shown in FIG. 7 , it is determined that the yarn supply bobbin 21 is out of the set position.
  • the unit control section 50 displays it on the display screen 91 of the machine control apparatus 90, and stops the winding operation of the winding part 17. Thereby, the operator can promptly perform an operation necessary for recovery and restart the winding.
  • the automatic winder of this embodiment includes the yarn supply bobbin holder 71, the winding part 17, and the core tube detection sensor 81.
  • the yarn supply bobbin holder 71 the yarn supply bobbin 21 having the yarn wound on the core tube 95 is set.
  • the winding part 17 winds, into the package, the yarn drawn out from the yarn supply bobbin 21.
  • the core tube detection sensor 81 detects the core tube length of the yarn supply bobbin 21 set in the yarn supply bobbin holder 71.
  • the core tube length of the yarn supply bobbin 21 can be detected by the core tube detection sensor 81. This can save the trouble of inputting the set value of the core tube length to the automatic winder, thus reducing a burden on the operator. Additionally, the value obtained by actual measurement of the core tube length is used for the control. This can avoid occurrence of an inappropriate control due to an input error, as compared with a conventional manual input.
  • the automatic winder of this embodiment is configured as follows. That is, the automatic winder includes the storage part 86 and the updating part 88.
  • the storage part 86 stores the core tube length detected by the core tube detection sensor 81.
  • the updating part 88 updates the core tube length stored in the storage part 86 with a newly detected core tube length.
  • the core tube length of the yarn supply bobbin 21 set in the automatic winder is once detected and stored in the storage part 86, then the core tube length can be easily obtained by referring to this storage content and can be used for various kinds of calculations. Even in a case where the core tube length set in the automatic winder is not constant, the yarn can be appropriately wound flexibly according to a change in the core tube length, because the updating part 88 updates the content of the storage part 86 each time the core tube is set.
  • the automatic winder of this embodiment is configured as follows. That is, the automatic winder includes the stepping motor 79 and the calculation part 87.
  • the stepping motor 79 is configured to move the core tube detection sensor 81 in a longitudinal direction of the core tube 95, and to control the amount of movement of the core tube detection sensor 81.
  • the calculation part 87 calculates the core tube length based on the amount of movement of the core tube detection sensor 81.
  • the core tube length can be easily and correctly calculated based on the amount of movement of the core tube detection sensor 81 moved by the stepping motor 79.
  • the automatic winder of this embodiment is configured as follows. That is, the automatic winder includes the unwinding assist device 12 for controlling the balloon that occurs when the yarn is drawn out from the yarn supply bobbin 21.
  • the unwinding assist device 12 includes the movable member 76 configured to be in contact with the balloon and the chase portion detection sensor 80 configured to detect the chase portion of the yarn supply bobbin 21.
  • the stepping motor 79 moves the movable member 76 in the longitudinal direction of the core tube 95, and thereby moves the core tube detection sensor 81 integrally with the movable member 76.
  • a function for correctly detecting the core tube length can be achieved by a small number of parts, because the configuration of the unwinding assist device 12 for controlling the balloon is utilized. Additionally, the amount of remaining yarn of the yarn supply bobbin 21 can be easily calculated based on the position of the chase portion relative to the core tube length. Therefore, even in a case where the yarn supply bobbin 21 that is not full is set in the yarn supply bobbin holder 71, the amount of remaining yarn of this yarn supply bobbin can be appropriately calculated.
  • the automatic winder of this embodiment includes the driving force conversion mechanism 85 for converting the rotation of the motor shaft included in the stepping motor 79 that serves as the driving part into linear movement of the core tube detection sensor 81.
  • the core tube detection sensor 81 can be linearly moved. Therefore, the core tube length can be precisely measured.
  • the automatic winder of this embodiment is configured as follows. That is, the automatic winder includes the tension applying device 13 that applies a tension to the yarn 20 being wound into the package 30.
  • the tension applying device 13 performs the tension control in accordance with the core tube length detected by the core tube detection sensor 81.
  • the core tube length of the yarn supply bobbin 21 set in the yarn supply bobbin holder 71 is actually measured and used for the control, and thereby the tension control more accurately reflecting a real status can be performed.
  • the automatic winder of this embodiment includes the determination part 89 for determining whether or not the yarn supply bobbin 21 is out of the set position in the yarn supply bobbin holder 71 based on the detection signal of the core tube detection sensor 81.
  • a function for determining whether or not the yarn supply bobbin 21 is set in an appropriate position can be achieved by a simple configuration using the core tube detection sensor 81.
  • the determination part 89 determines that the yarn supply bobbin 21 is out of the set position in the yarn supply bobbin holder 71, the winding operation of the winding part 17 is suspended.
  • the automatic winder of this embodiment includes the display screen 91 for notifying the deviation of the yarn supply bobbin 21 from the set position in the yarn supply bobbin holder 71.
  • the core tube detection sensor 81 is arranged in the elevator part 78 of the unwinding assist device 12. This configuration may be appropriately modified. For example, in a possible modified configuration, the core tube detection sensor 81 is arranged in a member different from the elevator part 78.
  • transmission type photosensors are adopted as the chase portion detection sensor 80 and the core tube detection sensor 81
  • this configuration may be appropriately modified.
  • reflection type photosensors may be adopted as the chase portion detection sensor 80 and the core tube detection sensor 81.
  • a distance sensor capable of measuring a distance to a detection object may be adopted.
  • one distance sensor is arranged at the center of the elevator part 78. Based on distance information obtained by the distance sensor, the unit control section 50 obtains position information of the core tube 95 and the position information of the chase portion of the yarn supply bobbin 21. In this manner, such a configuration is also possible that one core tube detection part detects the core tube length and the position of the chase portion.
  • the driving force conversion mechanism 85 may be appropriately modified, as long as it is configured to convert the rotation of the motor shaft into the linear movement of the core tube detection sensor 81.
  • the elevator part 78 is moved in the vertical direction by means of belt driving.
  • the elevator part 78 is moved in the vertical direction by means of a worm gear and a pinion.
  • a servomotor may be adopted as the motor for driving the elevator part 78.
  • something other than the motor may be adopted as the driving part.
  • a cylinder may be adopted as the driving part so that the winder unit is configured as follows.
  • the winder unit includes a cylinder for driving the core tube detection sensor 81, and a movement amount detection part for detecting the amount of movement of the core tube detection sensor 81 moved by the cylinder.
  • the calculation part 87 of the unit control section 50 calculates the core tube length based on the amount of movement of the core tube detection sensor 81 detected by the movement amount detection part.
  • gate type one is adopted as the tension applying device 13
  • the configuration thereof may be appropriately modified as long as the tension control can be performed.
  • disc type one may be adopted as the tension applying device.
  • a warning lamp is arranged for each winder unit 10, and if the yarn supply bobbin 21 is out of the yarn supply bobbin holder 71, this warning lamp is actuated so that the operator is notified of a state of the yarn supply bobbin 21.
  • the winding part 17 is configured to traverse the yarn by means of the traverse drum 24, a configuration for traversing the yarn may be appropriately modified.
  • a traverse device configured to rotate a traverse arm having a yarn guide attached to the distal end thereof, a traverse device configured to reciprocate a yarn guide by means of belt driving, a rotary type traverse device using a rotating blade, or the like, may be adopted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Claims (8)

  1. Garnwickelmaschine, welche aufweist:
    ein Spuleneinsetzteil (71) zum Einsetzen einer Garnzufuhrspule (21), auf deren Kernrohr (95) ein Garn (20) gewickelt ist;
    ein Wickelteil (17) zum Aufwickeln eines von der Garnzufuhrspule (21) abgezogenen Garns (20) zu einer Packung (30);
    ein Kernrohrdetektionsteil (81) zum Detektieren einer Kernrohrlänge, der in das Spuleneinsetzteil (71) eingesetzten Garnzufuhrspule (21); gekennzeichnet durch
    ein Antriebsteil (79), das konfiguriert ist, um das Kernrohrdetektionsteil (81) in Längsrichtung des Kernrohrs (95) zu bewegen und dessen Bewegungsbetrag zu steuern; und
    ein Berechnungsteil (87) zum Berechnen der Kernrohrlänge basierend auf dem Bewegungsbetrag des Kernrohrdetektionsteils (81).
  2. Die Garnwickelmaschine nach Anspruch 1, gekennzeichnet durch
    ein Speicherteil (86) zum Speichern der von dem Kernrohrdetektionsteil (81) detektierten Kernrohrlänge; und
    ein Aktualisierungsteil (88), um beim Einsetzen der Garnzufuhrspule (21) in das Spuleneinsetzteil (71) die in dem Speicherteil (86) gespeicherte Kernrohrlänge mit einer neuerlich detektierten Kernrohrlänge zu aktualisieren.
  3. Die Garnwickelmaschine nach Anspruch 1, gekennzeichnet durch
    eine Abwickelassistenzvorrichtung (12) zum Steuern eines Ballons, der vorkommt, wenn das Garn (20) von der Garnzufuhrspule (21) abgezogen wird, wobei
    die Abwickelassistenzvorrichtung (12) enthält:
    ein Kontaktelement (76), das zum Kontakt mit dem Ballon konfiguriert ist; und
    ein Verjüngungsabschnittdetektionsteil (80) zum Detektieren eines Verjüngungsabschnitts der Garnzufuhrspule (21),
    wobei das Antriebsteil (79) das Kontaktelement (76) in der Längsrichtung des Kernrohrs (95) bewegt, und hierdurch das Kernrohrdetektionsteil (81) integral mit dem Kontaktelement (76) bewegt.
  4. Die Garnwickelmaschine nach Anspruch 1 oder 3, gekennzeichnet durch
    einen Antriebskraftumwandlungsmechanismus (85) zum Umwandeln der Drehung einer Motorwelle, die in einem als das Antriebsteil (79) dienenden Motor (79) enthalten ist, in eine lineare Bewegung des Kernrohrdetektionsteils (81).
  5. Die Garnwickelmaschine nach einem der Ansprüche 1 bis 4, gekennzeichnet durch
    eine Spannungsanlegevorrichtung (13) zum Anlegen einer Spannung an das Garn (20), das in die Packung (30) gewickelt wird, wobei
    die Spannungsanlegevorrichtung (13) eine Spannungssteuerung gemäß der von dem Kernrohrdetektionsteil (81) detektierten Kernrohrlänge durchführt.
  6. Die Garnwickelmaschine nach einem der Ansprüche 1 bis 5, gekennzeichnet durch
    ein Bestimmungsteil (89), um basierend auf einem Detektionssignal des Kernrohrdetektionsteils (81) bestimmen, ob die Garnzufuhrspule (21) außerhalb einer Einsetzposition zu dem Spuleneinsetzteil (71) ist oder nicht.
  7. Die Garnwickelmaschine nach Anspruch 6, dadurch gekennzeichnet, dass in einem Fall, wo das Bestimmungsteil (89) bestimmt, dass die Garnzufuhrspule (81) außerhalb der Einsetzposition des Spuleneinsetzteils (71) ist, ein Wickelbetrieb des Wickelteils (17) ausgesetzt wird.
  8. Die Garnwickelmaschine nach Anspruch 6 oder 7, gekennzeichnet durch
    einen Meldeabschnitt (91), um eine Abweichung der Garnzufuhrspule (21) von der Einsetzposition in dem Spuleneinsetzteil (71) zu melden.
EP10831295.0A 2009-11-18 2010-11-02 Spulenwickler Active EP2502865B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009262858A JP2011105460A (ja) 2009-11-18 2009-11-18 糸巻取機
PCT/JP2010/006461 WO2011061895A1 (ja) 2009-11-18 2010-11-02 糸巻取機

Publications (3)

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EP2502865A1 EP2502865A1 (de) 2012-09-26
EP2502865A4 EP2502865A4 (de) 2013-10-02
EP2502865B1 true EP2502865B1 (de) 2016-08-24

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JP2013056767A (ja) * 2011-09-09 2013-03-28 Murata Machinery Ltd 巻取ユニット
CN102795514B (zh) * 2012-05-02 2014-07-30 上海亚泰仪表有限公司 纺织络筒机智能控制系统
JP2013249189A (ja) * 2012-06-04 2013-12-12 Murata Machinery Ltd 糸巻取装置、糸巻取方法、及び、糸巻取システム
JP2014024655A (ja) * 2012-07-27 2014-02-06 Murata Mach Ltd 糸巻取機
DE102016115256A1 (de) * 2016-08-17 2018-02-22 Saurer Germany Gmbh & Co. Kg Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
DE102016121667A1 (de) * 2016-11-11 2018-05-17 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Spulstelle und Spulmaschine
CN108892001B (zh) * 2018-08-20 2024-01-19 浙江万事发纺织机械有限公司 粘胶长丝整机机构
EP3771677B1 (de) * 2019-07-30 2024-05-01 TMT Machinery, Inc. Spulenaustauschsystem

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Also Published As

Publication number Publication date
EP2502865A1 (de) 2012-09-26
CN102612478B (zh) 2013-10-16
JP2011105460A (ja) 2011-06-02
WO2011061895A1 (ja) 2011-05-26
CN102612478A (zh) 2012-07-25
EP2502865A4 (de) 2013-10-02

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