• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    There is provided a method for winding and unwinding a woven fabric in a loom, in which a woven fabric is pulled by a surface roll and then wound onto a fabric take-up roll. The method includes the step of providing a take-up motor which allows the fabric take-up roll to rotate forward or backward independently of the loom and face roll when the loom. weaving machine is stopped.
    公开号:BE1022473B1
    申请号:E2012/0580
    申请日:2012-09-04
    公开日:2016-04-21
    发明作者:
    申请人:Kabushiki Kaisha Toyota Jidoshokki；
    IPC主号:
    专利说明:

    METHOD AND APPARATUS FOR WINDING AND RUNNING A WOVEN ETOFF IN A WEAVING
    BASIS OF THE INVENTION
    The present invention relates to a method and apparatus for winding and unwinding a woven fabric in a loom.
    Japanese Unexamined Utility Model Application Publication No. 7-31876 discloses an apparatus for facilitating the mounting and removal of a tissue roll in and out of a loom. The apparatus includes a pair of moving tissue roll holders along the axis of the tissue roll and a pedal for moving tissue roll holders through their teeth and associated members. When the pedal is depressed by an operator, the force exerted on the pedal is transmitted via the teeth to the supports of the roll of tissue so as to increase the distance between the supports of the roll of fabric and thus facilitate assembly and removal. of the fabric roll. Pressing the pedal generates a greater force than that obtained in the case of a manual operation and also allows the operator to keep both hands free, which facilitates the handling of the roll of tissue. Further, since the tissue roll holders are bonded to one another by teeth, the force on the pedal is transmitted to the respective carriers of the tissue roll, resulting in a reduction in the size of the tissue roll. the device.
    In the apparatus disclosed in Publication No. 7-31876, before removing the roll of fabric, the woven fabric that extends between the surface roll and the fabric roll must be cut. In this case, since the fabric is subjected to high tension, cutting such a fabric under tension causes the cut end of the fabric to bounce and may therefore damage the fabric. Such rebound of the fabric may change the position of the pick-up line when the fabric is not firmly held between the surface roll and the press roll. Thus, before cutting the fabric, the fabric should be released by rotating the fabric roll in the opposite direction.
    However, it is difficult to rotate the fabric roll since it is connected to a drive mechanism of the loom. Although the fabric roll can separate from the drive mechanism by depressing the pedal as disclosed in the publication cited above, it is difficult for the operator to spin the roll of fabric by hand, when the latter is heavily loaded with the wrapped fabric. Turning the roll of fabric by hand is a delicate and time consuming operation, resulting in a reduction in the productivity of the loom.
    When a new tissue roll is mounted in the loom, the cut end of the fabric should be wound on the tissue roll. In this case, the fabric wrapped around the tissue roll should have a tension that is strong enough to maintain the quality of the woven fabric upon restarting the weaving operation of the loom. It is necessary to rotate the tissue pick roller to turn on the fabric. Also in this case, the operator must rotate the tissue pick roller to the state in which the tissue pick roller is separated from the drive mechanism by depressing the pedal, thereby being able to wind the fabric. Since rotation of the tissue roll caller by hand requires a lot of force, it is difficult to impart a constant tension to the fabric and also to reduce the variations of tension during the various operations, which can give rise a decrease in the quality of the weaving because of the formation of folds in the fabric at the beginning of the winding.
    It is an object of the present invention to provide a method and apparatus which facilitates cutting of woven fabric and winding of a woven fabric on a newly installed tissue roll.
    SUMMARY OF THE INVENTION
    In accordance with one aspect of the present invention, there is provided a method of wrapping and unrolling woven fabric in a loom, wherein the woven fabric is pulled by a surface roll before winding on a tissue roll. . The method includes the step of providing a winding motor that allows the tissue roll to rotate forward or backward independently of the loom and the surface roll when the loom weaving is put to a stop.
    According to one embodiment of the invention, the method comprises the steps of: stopping the loom after weaving a predetermined weave length of fabric (6) and after weaving a predetermined additional length of fabric in addition to the length of the loom predetermined weaving; and subjecting the winding motor (15) to rotation in the opposite direction so that the additional predetermined length of tissue is unwound from the tissue roll (8).
    According to another alternative embodiment of the invention, the method comprises the steps of: stopping the winding motor (15) after weaving a predetermined weaving length of fabric (6); and continuing to operate the loom until a predetermined additional length of fabric (6) is pulled by the surface roller (2).
    In accordance with another aspect of the present invention, there is provided an apparatus for winding and unrolling woven fabric in a loom, wherein the woven fabric is pulled by a surface roll prior to winding on a roll call roll. tissue. The apparatus includes a winding motor for driving the tissue-pulling roller independently of the loom and the surface roller, and a controller that allows the winding motors to rotate forward or backward. the back independently when the loom is switched off. Other aspects and advantages of the invention will become apparent from the following description when taken in conjunction with the accompanying drawings which illustrate by way of example the principles of the invention.
    BRIEF DESCRIPTION OF THE DRAWINGS
    Fig. 1 is a schematic side view of an apparatus according to a first embodiment of the present invention.
    Fig. 2 shows a view similar to that of Fig. 1, in which the tissue cutting operation is explained in accordance with a second embodiment of the present invention.
    Fig. 3 is a flow chart of the tissue cutting operation according to the second embodiment.
    Figure 4 shows a view similar to that of Figure 1, in which the tissue cutting operation is explained in accordance with a third embodiment of the present invention.
    Fig. 5 is a flow chart of the tissue cutting operation according to the third embodiment.
    Fig. 6 is a view similar to that of Fig. 1, in which the tissue cutting operation is explained according to a fourth embodiment of the present invention.
    Fig. 7 is a flow chart of the tissue cutting operation according to the fourth embodiment.
    Fig. 8 shows a view similar to that of Fig. 1, in which the tissue cutting operation is explained in accordance with a fifth embodiment of the present invention.
    Fig. 9 is a flow chart of the tissue cutting operation according to the fifth embodiment.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
    Hereinafter, the first embodiment of the present invention will be described with reference to Fig. 1. Referring to Fig. 1, a surface roll 2 is rotatably supported by a frame 1 of the woven loom and is connected to to a drawing motor 3 which represents a servomotor provided independently of the drive motor of the loom (not shown). The drawing motor 3 is electrically connected via signal lines 16 to a controller 4. The stretching motor 3 is able to rotate forward and backward regardless of the operating state. the drive motor of the loom. During the weaving operation of the loom, the drawing motor 3 is nevertheless rotated synchronously with the drive motor of the loom. A pressure roller 5 exerts a pressure on the surface roller 2. A woven fabric 6 is guided downwards by a guide roller 7 before being conveyed along the surface roller 2 and the pressure roller 5, while being maintained between the surface roller 2 and the pressure roller 5. During the weaving operation of the loom, the fabric 6 is stretched by the surface roller 2 which rotates in the direction indicated by the arrow in FIG. FIG. 1, before being delivered via the pressure roller 5.
    A tissue roll 8 is rotatably supported by the frame 1 at a location below the surface roll 2. The tissue roll 8 is connected to a winding motor 15 via a worm wheel endless 10, a worm 12 and a gear train 14 which are housed in a worm wheel housing 9, a worm gear housing 11 and a gear housing 13, respectively. The tissue roll 8 driven by the winding motor 15 for winding the fabric 6 is rotated in the direction indicated by the arrow in FIG. 1 at a reduced speed by the gear train 14, by the screw endless 12 and the worm wheel 10.
    The winding motor 15 is a servomotor and is electrically connected via signal lines 17 to the controller 4. The winding motor 15 is able to rotate forward and backward independently of the motor. driving the loom (not shown) and the drawing motor 3, but rotates synchronously with the driving motor of the loom (not shown) and with the drawing motor 3 at the same time. weaving operation of the loom. During the weaving operation of the loom, the fabric 6 is wound on the tissue roll 8 to form a roll of fabric 18. The running condition of the winding motor 15 is adjusted by the controller 4 so that the rotational speed of the winding motor 15 decreases proportionally to the increase in the diameter of the fabric roll 18, so that the fabric 6 which is wound on the roll of Fabric call 8 is subjected to constant tension.
    The controller 4 includes a memory 4A for storing data and a processor 4B for computing data and also for transmitting and receiving signals. The controller 4 further includes a control panel 19 which includes a data display (not shown), a data input device (not shown), a switch 20 for the forward engine, a switch 21 for walking rear of the engine, a switch 22 for starting the loom, a switch to stop the loom 23, and other well-known switches (not shown). While the switch 20 for the forward engine or the switch 21 for the reverse of the engine is held in its ON position by an operator, the winding motor 15 is rotated in the direction towards the engine. forward or backward selected, regardless of the drive motor of the loom. When the switch 20 for the forward engine or the switch 21 for the reverse gear motor returns to its initial OFF position, the independent rotation of the winding motor 15 stops. Although in the present embodiment the controller 4 serves to control all woven loom operations, different additional controllers may be provided for the drawing motor 3 and the respective winding motor 15, while being connected to the controller 4, so that the drawing motor 3 and the winding motor 15 are controlled respectively independently in response to a control signal output from the controller 4.
    An arrangement can be provided such that the winding motor 15 is subjected to starting and its rotation is maintained solely by activation of the forward switch 20 of the engine or the reverse switch 21 of the engine of the engine. from the operator, and such that the winding motor 15 is stopped by a subsequent activation of the switch. The forward engine switch 20 and the engine reverse switch 21 on the control panel 19 may be provided for example on the frame 1 at a position adjacent to the tissue roll 8.
    In the first embodiment, when the loom stops its weaving operation, the winding motor 15 can be independently rotated forwards or backwards by operating the forward switch 20 of the engine or the switch 21 of the engine, thus allowing independent and easy rotation of the tissue roll 8.
    For example, when it is a matter of cutting the fabric 6 to a predetermined weaving length, after stopping the weaving operation of the woven loom, the reverse switch 21 of the motor is actuated. The rotation of the tissue-calling roller 8 in the opposite direction, that is to say the unfolding of the fabric 6 on the fabric roll 18 can be achieved only by the activation of the switch 21 of walking rear of the engine, which relieves the work of the operator and facilitates the release of the fabric 6 which extends between the pressure roller 5 and the roll of tissue 18.
    At the end of the cutting of the fabric 6, the end of the fabric 6 which collapses from the pressure roller 5 must come to wind on a newly installed tissue call roller 8. In this case, the end of the fabric 6 is adhered to the tissue roll 8 and the forward motor switch 20 is operated to rotate the winding motor 15 forward for a period of time. given time. In doing so, the fabric 6 is wound on the fabric call roller 8 while stretching the fabric 6, which facilitates the work of preparing the operator to start the weaving operation of the loom . The surface roller 2 can be driven, not by the drawing motor 3, but by the drive motor of the loom (not shown).
    In FIGS. 2 and 3, the tissue cutting operation according to the second embodiment of the present invention, corresponding to an alternative according to claim 1, is explained. In the drawings, the same reference numerals are used for components or elements common to the first and second embodiments, and the description of such elements or components of the second embodiment will be omitted. In the second embodiment, data relating to a predetermined weaving length, i.e., a predetermined length of fabric to be woven prior to cutting, is stored in controller 4 memory 4A in terms of the number of weaves. of weft insertions or number of picks and a cut mark is placed on a plurality of warp threads formed on a warp beam (not shown) at a location corresponding to the predetermined weave length. Data relating to a predetermined additional length, i.e., a predetermined length of weaving fabric, in addition to the predetermined weaving length, for loosening of the fabric, is also stored in the memory 4A in terms of the number of picks. The number of picks can be counted by the counting function of the controller 4. A series of steps which are described below are included in the program for the weaving operation and are stored in the controller 4 memory 4A. .
    Referring to the flowchart of Figure 3, when starting the weaving operation of the loom (step PI), starts counting the number of pick (step P2). When the counted number of picks reaches a predetermined value, the cutting mark reaches the position indicated by the reference numeral 24A in FIG. 2. Next, the count of the number of goals for weaving the predetermined additional length is started (step P3 ). When the counted number of picks for weaving the predetermined additional length reaches a predetermined value (step P4), the processor 4B of the controller 4 stops the weaving operation (step P5). When the weaving operation is stopped, the cutting mark reaches the position indicated by reference numeral 24B (FIG. 2) on the roll of fabric 18.
    Based on the number of picks for weaving the predetermined additional length, processor 4B of controller 4 calculates the magnitude of rotation of the winding motor 15 which corresponds to the predetermined additional length (step P5) and sends the control signal to the winding motor 15 for the rotation of the latter in the opposite direction. The winding motor 15 begins to rotate in the opposite direction (step P6) to rotate the tissue call roller 8 in the direction indicated by the arrow in FIG. 2 to unwind the fabric 6 on the fabric roll 18 When the rotation value of the winding motor 15 in the opposite direction to a predetermined value (step P7), the processor 4B of the controller 4 sends a control signal to the winding motor 15 to stop its rotation (step P8). The controller 4 also attracts the attention of an operator using the display.
    After the unwinding of the fabric 6, the cutting mark reaches the position indicated by the reference numeral 24C in FIG. 2, that is to say a place where it is easy to cut the fabric 6, and the fabric 6 is sufficiently released for cutting and subsequent winding. In this way, the preparation for cutting the fabric 6 comes to an end automatically. The operator can start the cutting operation of the fabric 6 directly (step P9), and the fabric 6 is cut at the location corresponding to the cut mark 24C before removing the cloth roll 18 from the loom.
    Although in the second embodiment, the preparation for cutting the fabric 6 is performed automatically, the rotation of the winding motor 15 in the opposite direction to the step P6 can be implemented via a manual operation of the switch 21 to reverse the engine by the operator.
    In FIGS. 4 and 5, the tissue cutting operation according to the third embodiment of the present invention, corresponding to an alternative according to claim 2, is explained. In the drawings, the same reference numerals are used for components or elements common to the first, second and third embodiments, and the description of such elements or components of the third embodiment will be omitted. In the third embodiment, a program for the weaving operation is stored in the memory 4A of the controller 4. The program includes a program for counting the number of picks corresponding to the predetermined weaving length, a program for stopping only the winding motor 15 when the counted number of picks reaches a predetermined value and a program for counting the pick number for weaving the predetermined additional length. A series of steps described below is programmed in the memory 4A of the controller 4.
    Referring to the flowchart of FIG. 5, when starting the weaving operation of the loom (step P10), counting of the number of picks is started (step P11). When the counted number of picks reaches a predetermined value corresponding to the predetermined weaving length, the cutting mark reaches the position indicated by the reference numeral 24A in FIG. 4. When the counted number of picks reaches the predetermined value, the processor 4B the controller 4 sends a control signal only to the winding motor 15 to stop the rotation of the winding motor 15, while allowing the weaving operation of the loom to continue (step P12). In doing so, the fabric 6 is loosened on the fabric roll 18, as shown in FIG.
    When the counted number of picks reaches the predetermined value, the controller 4 starts counting the pick number for weaving the predetermined additional length (step P13). When the counted number of picks for weaving the predetermined additional length reaches a predetermined value (step P14), the controller 4 stops the weaving operation of the loom (step P15). Controller 4 catches the operator's attention using the display. When the loom is stopped, the cut mark is located at the location indicated by the reference numeral 24C in Figure 4, and the fabric 6 of the predetermined additional length is disposed on the fabric roll 18. In this manner , the preparation for cutting the fabric 6 ends with the shutdown of the loom. The operator can start the cutting operation of the fabric 6 immediately (step P16), as was the case in the second embodiment.
    In Figures 6 and 7, the tissue cutting operation is explained in accordance with the fourth embodiment of the present invention. In the drawings, the same reference numerals are used for components or elements common to the first, second, third, and fourth embodiments, and the description of such elements or components of the fourth form will be omitted. of realization. In the fourth embodiment, the controller 4 is connected via a signal line 25 to a tag 26 which includes a signal lamp 27 to indicate the moment corresponding to the cutting of the fabric 6. As was the case in the forms In the preceding embodiments, a program for counting the number of picks corresponding to the predetermined weaving length and a program for flashing the signal lamp 27 when the pick number reaches a predetermined value are included in the program for the weaving operation. and said programs are stored in the memory 4A of the controller 4.
    Referring to the flowchart of Figure 7, when starting the weaving operation of the loom (step P20), the count of the number of picks is started (step P21). When the counted number of picks reaches a predetermined value corresponding to the predetermined weaving length, the cutting mark reaches the position indicated by the reference numeral 24A in FIG. 6. When the counted number of picks reaches the predetermined value, the processor 4B the controller 4 sends a control signal to the tag 26 to flash the slow signal 27 while allowing the weaving operation of the loom to continue (step P22). When the operator in the factory detects the flashing of the signaling lamp 27 (step P23), the operator goes directly to the loom including the flashing lamp to actuate the switch 23 to stop. stopping the loom (step P24). When the loom has stopped, the cut mark is located at the location indicated by the reference numeral 24B in FIG. 6 and the fabric 6 is disposed on the cloth roll 18.
    When the motor reverse switch 21 is actuated (step P24), the winding motor 15 rotates in reverse (step P25), so that the tissue pick roller 8 rotates in the indicated direction by the arrow in FIG. 6 in order to unwind the fabric 6 on the fabric roll 18. The operator monitors the fabric 6 being unwound via the rotation in reverse of the cloth call roller 8. When the operator detects the cut mark indicated by reference numeral 24C in FIG. 6 (step P26), the operator cuts the motor reverse switch 21 (step P27) in order to stop the winding motor 15 (step P28 ). Thus, the preparation for cutting the fabric 6 is completed and then the cutting operation of the fabric 6 is carried out by the operator (step P29). In this way, the heavy fabric roll 18 can be easily rotated for the preparation of the cutting operation only by the fact that the operator actuates the motor reverse switch 21.
    In Figures 8 and 9, the tissue cutting operation is explained in accordance with the fifth embodiment of the present invention. In the drawings, the same reference numerals are used for components or elements common to the first, second, third and fifth, the fourth embodiment, and the description of such elements or components of the fifth embodiment. In the fifth embodiment, the fabric tension data required at the start of the weaving operation as well as the winding torque data which is calculated based on the diameter of the weave. newly installed 8A roll of tissue call are stored beforehand in the memory 4A of the controller 4. The controller 4 also stores in memory a program for adjusting the speed of rotation of the winding motor 15 and also for stopping the motor of winding 15 when the winding torque reaches a predetermined value.
    Referring to the flowchart of Fig. 9, when the weaving operation of the loom stops (step P30), and when the cutting of the fabric 6 is completed (step P31), a new roll of 8A fabric call is installed in the loom, as shown in Figure 8. The end 28 of the fabric 6 extending down from the pressure roller 5 is indicated by a dotted line in Figure 8 and it comes wrapping around the tissue roll 8A by hand by the operator (step P32). In doing so, the fabric 6A is stretched between the pressure roller 5 and the tissue roll 8A as indicated by the solid line in FIG. 8. Then, the forward motor switch 20 is actuated by the operator ( step P33), whereby the winding motor 15 rotates forwardly to rotate the tissue roll 8A in the direction indicated by the arrow in Fig. 8 (step P34).
    The controller 4 can be activated to control the running state of the winding motor 15 so that the winding torque of the winding motor 15 reaches a predetermined value. When the winding torque reaches the predetermined value (step P35), the winding motor 15 is stopped in response to a signal from the processor 4B of the controller 4 (step P36). Rotation of the tissue roll 8A causes the fabric 6A to stretch between the press roll 5 and the tissue roll 8A to a tension that is required from the weaving operation, and start switch 22 is actuated by the operator to start the weaving operation (step P37). Thus, the tension required for the fabric 6A can be imparted without disturbing the operator, which allows the weaving operation to start stably.
    The determination of whether the winding torque reaches a predetermined value can be achieved by means of a torque sensor which is provided on the rotating shaft of a drive train between the winding motor. 15 and the cloth call roller 8A. In this case, the winding motor 15 can be stopped in response to a signal transmitted by the torque sensor.
    权利要求:
    Claims (2)
    [1]
    A method for winding a woven fabric (6) into a loom, wherein a woven fabric (6) is pulled by a surface roll (2) and then wound on a fabric roll (8), the method being characterized by the steps of: providing a winding motor (15) which allows the tissue roll (8) to rotate independently of the loom and the surface roll (2); stopping the loom after weaving a predetermined weave length of fabric (6) and after weaving a predetermined additional length of fabric in addition to the predetermined weaving length, and subjecting the winding motor (15) to a rotation in the opposite direction so that the additional predetermined length of fabric is unwound from the tissue roll (8).
    [2]
    2. - A method for winding a woven fabric (6) in a loom, wherein a woven fabric (6) is pulled by a surface roll (2) and then wound on a roll caller fabric (8), the method characterized by the steps of: providing a wrapping motor (15) which allows the tissue roll (8) to rotate independently of the weaving loom and the wrapping roll. surface (2); stopping the winding motor (15) after weaving a predetermined weaving length of fabric (6); and continuing to operate the loom until a predetermined additional length of fabric (6) is pulled by the surface roller (2).
    类似技术:
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    同族专利:
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    引用文献:
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    JP5182210B2|2009-04-28|2013-04-17|株式会社豊田自動織機|Method for detecting the diameter of a warp beam in a loom|JP6011580B2|2014-03-12|2016-10-19|株式会社豊田自動織機|Loom weaving control method and apparatus|
    CN106044361B|2016-07-26|2019-01-11|西安坤蓝电子技术有限公司|A kind of device for back and forth unwinding and winding for two revolution between centers conducting wires|
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    法律状态:
    2021-06-18| MM| Lapsed because of non-payment of the annual fee|Effective date: 20200930 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011200048|2011-09-14|
    JP2011200048A|JP5573801B2|2011-09-14|2011-09-14|Loom weaving method|
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