JP2004353163A - Method and system for operating loom - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a loom effectively preventing generation of weaving bar in its starting up. <P>SOLUTION: The loom 1, which works in such a way that, in its starting up, cloth fell shifting components are driven to shift the position of a cloth fell 9 to a desired position followed by starting its stable operation, has the following steps and mechanism: a plurality of starting-up methods comprising slightly moving or reversing to a specified halt angle different from the rotational angle of the present main shaft 22 and subsequently switching over to the steady-state operation are set in a selectable manner corresponding to respective reasons why halted, and cloth fell position displacements respectively corresponding to the starting-up methods are set; in starting up the loom, one of the plurality of starting-up methods is selected to drive the main shaft, and the position of the cloth fell is corrected according to the displacement of the cloth fell and corresponding to the starting-up method selected above. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a loom operating method and a loom operating device for starting a steady operation after displacing a pre-weaving position to a desired position when the loom starts operating.

  When a cause of stoppage occurs in the loom, for example, as shown in FIGS. 1 to 3, braking is performed after occurrence of the cause of stoppage, and the loom is stopped in a cycle next to the cycle in which the cause of stoppage occurs. Next, a standby method of a loom is adopted in which the weaving step is performed by reversing the main shaft angle to a predetermined main shaft angle and suppressing a weaving step due to warp elongation due to a warp opening state. Then, after the stop cause repair work is performed, the loom is restarted. As a typical method of starting the loom when the loom is restarted after the cause of the stop has been repaired, the following (1) a normal start method, (2) a start method with reversal, and (3) a 60 ° start method. Are known. The outline of each activation method is as follows.

  (1) Normal start-up method: This normal start-up method is a normal start-up method for a general loom, and as shown in FIG. It stops at 300 ° and stands by, and depending on the cause of the stop, if it is a non-weft insertion error such as a warp break, it is activated by the activation method A11, and if it is a weft insertion error, it is activated by the activation method A12.

  In the activation method A11, the cause of the stop is not a weft insertion error, so that the weft inserted immediately before the stop is normally inserted and need not be removed. Then, when the operator presses the operation button after repairing the cause such as the breakage of the warp, the operation directly shifts to the steady operation, and the weft insertion is started in response to the rotation of the main shaft. The starting angle of the main shaft at this time is 300 °.

  In the start-up method A12, since the cause of the stop is a weft insertion error, it is necessary to remove the weft inserted immediately before the stop. Therefore, the operator operates the reverse button to reverse the spindle angle to 180 °, which is a state close to the maximum warp opening of the stop cause cycle, to remove and repair the defective weft causing the stop, and then press the button again. , The main shaft angle is reversed to 300 ° in the warp closing state of the cycle before the stop cause generation cycle. Thereafter, when the operation button is pressed, the operation shifts to the steady operation as it is, and the weft insertion is started in response to the rotation of the main shaft.

  (2) Start-up method with reverse rotation: This start-up method is also referred to as reverse start or idle start, and solves insufficient beating force when starting the loom as a measure to prevent weaving steps. As shown in FIG. 2, the loom is stopped at a main shaft angle of 300 ° in which the warp is closed in a stop cause generation cycle and stands by, and according to the stop cause, if there is a non-weft insertion error, a start method A21 is used. It is activated, and if it is a weft insertion error, it is activated by the activation method A22.

  In the start-up method A21, since the cause of the stop is not a weft insertion error, the weft inserted just before the stop is normally inserted and need not be removed. Then, when the operator presses the operation button after repairing the cause of the stop such as the warp breakage, the operator presses the first button (for example, 120 °) in the stop cause cycle or the first angle in the cycle earlier than this. After the reverse rotation, the normal operation is started from the reverse rotation position without idling and the empty driving is started. When the first position to be inserted is reached, the weft insertion is started. At this time, the starting angle of the main shaft is arbitrarily set in addition to 120 °.

  In the start-up method A22, the cause of the stop is a weft insertion error, so that the weft inserted immediately before the stop needs to be removed. Therefore, the operator operates the reverse button to reverse the spindle angle to 180 °, which is a state close to the maximum warp opening of the stop cause cycle, to remove and repair the defective weft causing the stop, and then press the button again. Thus, the main shaft angle is reversed to 300 ° at which the warp is closed in the cycle before the stop cause generation cycle. After that, when the operation button is pressed, the vehicle is reversed to the first angle (for example, 120 °) in the cycle in which the cause of stoppage occurs or the first angle in the cycle earlier than this, and then the steady operation is started from the reverse position. Start with no blanking and start weft insertion when the first position to be inserted is reached. It should be noted that it is possible to arbitrarily set the above-mentioned reverse rotation position, that is, how many cycles before the stop cause generation cycle is to be reversed, and the first angle is not limited to 120 ° but is arbitrarily set.

  (3) 60 ° start method: In this start method, as a countermeasure for the occurrence of a twill pillow in a twill structure such as 2/1, the number of beatings at the time of repairing the cause of the stop is made in order to make the stop step relatively unnoticeable. This is a startup method that is as small as possible. As shown in FIG. 3, the loom is stopped at a spindle angle of 60 ° in the cycle following the stop cause generation cycle and stands by, and according to the stop cause, if a non-weft insertion error occurs, the loom is started by the start method A31. If it is a weft insertion error, it is activated by the activation method A41 or the activation method A42.

  In the start-up method A31, the cause of the stop is not a weft insertion error, so that the weft inserted just before the stop is normally inserted and need not be removed. Then, when the operator presses the operation button after repairing the cause such as the warp breakage, the normal operation is started while wefting from the standby position.

  In the start-up method A41, the cause of the stop is a weft insertion error, so that the weft inserted immediately before the stop needs to be removed. Therefore, the operator operates the reverse button to reverse the spindle angle to 180 °, which is a state close to the maximum warp opening of the stop cause cycle, to remove and repair the defective weft causing the stop, and then press the button again. Thus, the main shaft angle of the cycle of occurrence of the stop cause is reversed up to 60 °. After that, when the operation button is pressed, the normal operation is started while the weft is inserted from the main shaft angle.

  Further, instead of the activation method A41, an activation method 42 may be employed. The starting method 42 corresponds to the case where the cause of the stop is a weft insertion error, and similarly to the start method A41, the weft inserted just before the stop needs to be removed. Therefore, the operator operates the reversing button to reverse the rotation to the main shaft angle of 180 ° which is close to the maximum warp opening of the stop cause cycle. Then, after removing and repairing the faulty weft that caused the stop, press the single weft insertion button to insert one weft, and then press the operation button to correct up to 300 ° within the stop occurrence cycle. From the position, and enters the steady operation with weft insertion.

  In the starting methods A41 and A42, the starting angle 60 ° of the main shaft is a position where the opening amount is almost stably opened in both the upper and lower directions and the weft insertion can be started immediately, and if this condition is satisfied, It is not limited to 60 °.

  Note that in FIGS. 1 to 3, the activation methods A11, A12, A21, A22, A31, A41, and A42 indicate unique numbers, and are used when specifying the activation method (activation program) later in the description of the present invention. Can be Incidentally, there are other start-up methods (start-up programs) besides those illustrated in FIGS. 1 to 3, and they are represented as A11, A12, A21, A22, A31, A41, A42,..., Ann.

  Although there are start-up methods that can make the weaving steps accompanying the stoppage of the loom relatively inconspicuous as in the above-described technology, they have advantages and disadvantages and need to be used properly depending on the conditions such as the specifications of the fabric and the cause of the stop. Further, it is difficult to completely eliminate the weaving steps only by the method of starting the loom. For this reason, an appropriate method of starting the loom and the following known technique of displacement (correction) of the pre-weaving position are used in combination.

  As a technique for correcting the position before weaving when the loom is started, there is a technique described in the following patent publication.

JP-A-61-63749 JP-A-3-227430

  The above-mentioned Patent Document 1 discloses a technique in which, before starting the steady operation, the delivery beam is rotated in the reverse direction and the normal direction to displace the weaving position to a desired position, and then the steady operation is started. Further, in this Patent Document 1, since the weaving position changes between when a weft insertion error occurs and at other times, the displacement amount of the weaving position is set in accordance with the cause of the stop of the loom. Are also shown.

  Patent Document 2 focuses on the point where the initial beating force changes due to a change in the starting angle of the loom, and when starting the loom, according to the target kickback amount set in accordance with the starting angle. A technique for preventing a weaving step in which at least one of a winding motor and a delivery motor is driven to rotate in a reverse direction is disclosed.

  However, a loom in which a plurality of start-up methods with operations such as the presence of a jog reverse or weft insertion is set before the steady operation starts, and the displacement amount of the pre-weaving position is determined for each start-up method selected by the loom. There is no setting technology so far. According to the study of the present inventors, it has been found that there is a displacement amount before weaving suitable for each of a plurality of activation methods depending on conditions such as a cause of stop.

  Therefore, an object of the present invention is to set a plurality of different starting methods, select one of the starting methods for starting the loom, and start the loom when starting the loom. Depending on the method, the weave is displaced to an appropriate position, so that weaving steps can be effectively prevented.

  With the above object, the present invention sets the displacement of the weaving position for each of a plurality of starting methods, and corrects the weaving position in accordance with the displacement corresponding to the selected starting method. The weaving steps that accompany the launch of the machine have been made inconspicuous.

  Specifically, the operation method of the loom of the present invention is a loom that starts a normal operation after driving a pre-weaving displacement member to displace a pre-weaving position to a desired position when starting operation of the loom. In the loom, a plurality of start methods are set for each of a plurality of stop causes, and at least one of the plurality of start methods set for each of the stop causes includes the start of the steady operation. Prior to that, it is set to perform the step of jogging or reversing from the main spindle angle for recovering the cause of the stop to the predetermined main spindle angle, and the displacement amount of the weaving position is set corresponding to each starting method, When starting the operation of the loom, selecting one of the plurality of starting methods to drive the main shaft of the loom, and displacing the pre-weaving position according to the displacement amount of the pre-weaving position corresponding to the selected starting method. To.

The plurality of activation methods set for each of the activation methods may include at least two of the following activation methods (1), (2), and (3).
(1) Start method for starting steady operation from the main shaft angle to be corrected for stop cause (2) Start method for starting normal operation after reversing from the main shaft angle to be corrected for the first main shaft angle different from the cause for stop (3) Stop cause Starting method for starting normal operation after normal rotation from a main spindle angle to be restored to a different second main spindle angle

The above-mentioned activation methods (1), (2) and (3) correspond to the above-mentioned activation methods A11 to A42 as follows.
(1) Start-up method for starting steady-state operation from the spindle angle for which the cause of the stop is corrected ... Start-up methods A11, A31
(2) Start-up method for starting normal operation after reversing from the main-spindle angle to be corrected for the cause of stop to a first different main-axis angle ... Start-up methods A12, A21, A22, A41
(3) Starting method for starting normal operation after normal rotation from the main spindle angle to be corrected for the cause of stop to the second main spindle angle ... Starting method A42

  Further, the plurality of starting methods may include a plurality of starting methods having different first or second spindle angles. Further, the displacement amount of the pre-weaving position is obtained by adding a stop time of the loom to a parameter. It may be set.

  Further, the loom operating device of the present invention is configured such that a storage device for storing a plurality of start programs relating to spindle drive at the start of loom operation for each cause of loom stop, and a stop device for each stop cause according to the cause of loom stop. A selector that outputs a selection signal for selecting any one of the plurality of startup programs, a spindle drive unit that drives a driving motor of the spindle according to the startup program corresponding to the selection signal, and a weave corresponding to the selection signal. A displacement amount setting device that sets the displacement amount of the front position, and a weaving position controller that drives the weaving position displacement member in accordance with the selected displacement amount, and a plurality of weaving position controllers that are set for each of the stop causes. Prior to the start of the steady operation, at least one of the storage programs is set to perform a step of jogging or reversing to a predetermined main spindle angle, and the displacement amount setting device includes: The amount of displacement of the weaving position according to each start program of the cause of stop is set corresponding to the selection signal, and when the loom operation starts, when an operation signal is input to the spindle control means, the spindle drive means Driving the driving motor according to the start-up program corresponding to the selection signal, and before starting the steady operation, outputs an operation preparation signal to the weaving position controller, and the weaving position controller outputs the operation preparation signal. And driving the weaving position displacement member in accordance with the displacement amount corresponding to the selection signal.

  According to the present invention, a plurality of different starting methods are set for each of the stop causes, and at the time of starting after the loom is stopped, one of the starting methods is selected for each of the stop causes at that time, and the loom is selected. When the loom is started, the position before weaving is corrected in accordance with the displacement amount corresponding to the selected starting method, so that the weaving steps involved in starting the loom are small and inconspicuous.

  FIG. 4 shows a main part of the loom 1 to be controlled and a control system. In the loom 1 of FIG. 1, the warp yarn 2 is sent out from the sending beam 3 as a sheet, passes through a back roll 4, passes through a heddle 5 and a reed 6, and forms a shed 9 while forming an opening 7. Has been reached. On the other hand, the weft 10 is inserted into the openings 7 of the upper and lower warps 2 and then beaten by the reed 6 to the weave 9 to form the woven fabric 8. The woven fabric 8 is wound on a fabric roll 14 via a guide roll 11, one press roll 12, a clothes roll 13, and the other press roll 12.

  The delivery beam 3 is driven in the delivery direction by a delivery controller 15, a delivery motor 16, and a delivery speed reducer 17. The feed controller 15 includes a winding diameter detector 27 and a tension detector 28. The winding diameter detector 27 detects the winding diameter of the warp 2 at the position of the delivery beam 3. Further, the tension detector 28 detects the tension of the warp 2 from the load of the warp 2 at, for example, the position of the back roll 4.

  The clothes winding roll 13 is driven in a winding direction by a winding controller 18, a winding motor 19, and a winding speed reducer 20. The cloth winding roll 14 is driven in a winding direction by a winding driver 21. In order to operate in synchronization with the rotation of the main shaft 22 of the loom 1, the winding controller 18 is connected to a rotation detector 23 such as an encoder that detects the rotation of the main shaft 22, and outputs a rotation signal or a rotation angle signal therefrom. Take as input. The winding drive 21 is connected to the main shaft 22 of the loom 1 and performs a winding operation in synchronization with the rotation of the main shaft 22.

  The heald 5 is driven by an opening driving device 24, and the reed 6 is driven by a reed driving device 25. The opening driving device 24 and the reed driving device 25 are both interlocked with the main shaft 21 and synchronized with the rotation of the main shaft 21. The spindle 22 is driven by a driving motor 26 and controlled by a spindle controller 29.

  Here, at least one of the feed motor 16 and the take-up motor 19 constitutes a weaving position displacement member. In addition, the weaving position shift member may be constituted by means for directly controlling the position of the weaving 9 by the displacement driving of the back roll 4 and the displacement driving of the guide roll 11.

  Next, FIG. 5 shows a main part of the loom operating device 30 of the present invention. In FIG. 5, the loom operating device 30 includes a feed controller 15, a take-up controller 18, a spindle controller 29, a main controller 31 including a CPU, and a selector for a starting method (starting program). 32, a storage device 33, a setting device 34, a displacement amount setting device 35, an operation button 36 as an operation button, an inching button 37, a reverse rotation button 38, a stop button 39, and a weaving position controller 40 on the feed side and a winding position. It is constituted by a weaving position controller 41 on the side.

  The main controller 31 controls the operation (starting), inching, reverse rotation, and stop of the main shaft 22, the control of the weft insertion device, and various other controls associated with the loom 1. On the input side, in addition to the start method (start program) selector 32, the operation button 36 as an operation button, the inching button 37, the reverse rotation button 38, the stop button 39, and the It is connected to a rotation detector 23 such as a connected encoder.

  On the output side, the main controller 31 is connected to the main shaft controller 29, the feed controller 15, the winding controller 18, the feed side weaving position controller 40, and the winding side weaving position controller 41. Further, it is connected to the storage device 33 and the setting device 34 so that bidirectional signals and data can be transmitted.

  The start-up method (start-up program) selector 32 is constituted by, for example, a large number of selection switches which are manually operated, and automatically generates a selection signal in accordance with a combination of a stop cause and a weaving condition as weaving density data. And a selection signal of a starting method (starting program) is sent to the main controller 31 and the displacement amount setting unit 35. The main controller 31 and the main shaft controller 29 constitute main shaft driving means, and drive the main shaft 22 by rotation of the delivery motor 16 according to a start program corresponding to a selection signal of the start program.

  In addition, the displacement amount setting unit 35 sets and stores the displacement amount of the weaving position in response to the selection signal of the starting method (starting program) and, at the time of preparation for starting, transmits the signal of the displacement amount of the weaving position. It is sent to the weaving position controller 40 on the sending side and the weaving position controller 41 on the winding side.

  FIG. 6 exemplifies a storage form of the displacement amount of the weaving position on the sending side and the winding side with respect to the starting method (starting program) in the displacement amount setting unit 35. The storage modes are as follows: For each start-up method (start-up program) A11, A12, A21, A22, A31, A41, A42,..., Ann, the pre-weaving displacement amounts F11, F12, F21, F22, F31 on the sending side. , F41, F41, F42,..., Fnn and the amounts of displacement R11, R12, R21, R22, R31, R41, R42,. Here, the pre-weaving displacement amounts F11, F12, F21, F22, F31, F41, F42,..., Fnn on the sending side and the pre-weaving displacement amounts R11, R12, R21, R22, R31, R41, on the winding side. R42,..., Rnn have a normal rotation in the feeding direction and the winding direction, a reverse rotation in the reverse direction with respect to the feeding direction and the reverse direction with respect to the winding direction, and have any direction depending on the starting method (starting program). Is set.

  The weaving position controller 40 on the sending side and the weaving position controller 41 on the winding side perform the preparation of the weaving position according to the selected start-up method (start-up program) during the operation preparation before starting the steady operation. On the basis of the displacement amount signal, the delivery motor 3 and the take-up motor 19 are driven to rotate the delivery beam 3 and the clothes roll 13, thereby displacing the position of the weave 9 by the displacement amount.

  The specific configurations of the feed controller 15, the take-up controller 18, the feed side pre-weaving position controller 40, and the take-up side pre-weave position controller 41 will be described later in detail with reference to FIGS. .

  The storage device 33 stores a program for a start-up method based on the operation method of the loom of the present invention, and also stores data necessary for start-up control of the loom 1 and inputs these to the main controller 31 when necessary. The setting unit 34 sets data of other control devices, such as a control start angle, a reverse rotation stop angle, the presence or absence of weft insertion, a steady operation start angle, and the like as start control data, and inputs the data to the main controller 31. .

  In FIG. 5, at the setting stage of the control of the loom 1, the selector 32 is activated by the selection operation of the operator or by the automatic selection operation according to the stop cause of the loom 1 when the operation of the loom 1 is started. Identify the method. At this time, the selector 32 sends a selection signal of a start program corresponding to the specified start method to the main controller 31 and to the displacement amount setter 35. The main controller 31 reads out a start-up program corresponding to the specified start-up method from the storage device 33 and prepares for execution of the read-out start-up program.

  Further, the displacement amount setting unit 35 transmits a signal of the displacement amount of the pre-weaving position corresponding to the starting program of the starting method specified based on the storage form of the displacement amount of the weaving position of FIG. This is sent out to the front position controller 40 and the weaving front position controller 41 on the winding side. Here, the pre-weaving position controller 40 on the sending side and the pre-weaving position controller 41 on the winding side prepare for the subsequent operation start based on the received displacement amount signal of the pre-weaving position.

  For example, consider a case in which the above-mentioned 60 ° start method is used as a start method and a start method is selected according to the cause of a stop to eliminate the pillow. That is, the activation method A31 is stored in the storage device 33 in response to the non-weft insertion error, and the activation method A41 is stored in the storage device 33 in response to the weft insertion error. Further, the displacement amounts F31, R31 and F41, R41 of the weaving position are set in the setting device 35 corresponding to the activation methods A31 and A41, respectively.

  When a cause of a non-weft insertion error such as a warp break occurs during operation of the loom 1, the main controller 31 stops the loom 1 according to a standby method stored in advance. Specifically, braking is started immediately after the occurrence of the stop cause, the loom 1 is stopped in the cycle next to the stop cause generation cycle, and in order to avoid unnecessary beating, the loom is rotated up to 60 ° of the cycle and in a standby state. become. On the other hand, a stop cause signal is input to the selector 32, and the selector 31 outputs a selection signal for selecting the activation method A31 in accordance with the input to the main controller 31 and the weaving position controller 40. , 41.

  When the arriving operator turns on the operation button 36 after repairing the warp breakage and sends an operation signal as an operation operation signal to the main controller 31, the main controller 31 starts the driving motor 26 by the main shaft controller 29 before starting. That is, during the operation preparation period, an operation preparation signal is sent to the weaving position controller 40 on the sending side and the weaving position controller 41 on the winding side. During the operation preparation period, the feeding-side pre-weaving position controller 40 and the winding-side pre-weaving position controller 41 perform the feeding operation as the pre-weaving position displacement means based on the signal of the displacement amount of the pre-weaving position. By driving the motor 16 and the take-up motor 19 as the weaving position shifting means, the delivery beam 3 and the clothes roll 13 are rotated in a predetermined direction, and the position of the weaving 9 corresponding to the selected starting method A31. Is displaced by displacement amounts F31 and R31.

  When the position of the cloth fell 9 is displaced by the displacement amount during the operation preparation period, the feed-side cloth weave position controller 40 and the winding-side cloth weave position controller 41 change the feed motor 16 and the winding motor 19, respectively. Stop driving.

  After the elapse of the operation preparation period, the main controller 31 sends an operation signal to the main shaft controller 29, starts the driving motor 26 by the main shaft controller 29 based on the start program of the specified start method, and sets a steady state. Start driving. When the operation shifts to the steady operation, the feeding controller 15 drives the feeding motor 16 by tension control, and the winding controller 18 receives a rotation signal from the rotation detector 23 to control the winding motor 19. Drive.

  On the other hand, if a weft insertion error occurs during operation, the main controller 31 reverses to the stopped cycle of 60 ° and enters the standby state according to the standby method stored in the same manner as the former. On the other hand, the selector 31 sends a selection signal for selecting the activation method A41 to the main controller 31 and the weaving position controllers 40 and 41 in response to the input of the stop cause.

  When the operator arrives, the reverse button 36 is pressed to remove the weft insertion error yarn. When a reverse rotation signal is sent to the main controller 31 as a reverse rotation operation signal, the main controller 31 reverses the rotation to the stop cause generation cycle of 180 ° according to the start-up program A41. Thereafter, when the operator removes the weft insertion error yarn and presses the reverse rotation button 36 again, a reverse rotation signal is input to the main controller 31 again. Stop. Then, when the operator presses the operation button 36, the main controller 31 transmits the pre-weaving position controller 40 on the sending side and the pre-weaving position controller 41 on the winding side before the steady operation is started, that is, during the operation preparation. To send an operation preparation signal. For this reason, the controller 40 and the controller 41 drive the feed motor 16 and the take-up motor 9 in accordance with the set displacement amounts F41 and R41 of the weaving position corresponding to the selection signal of the activation method, and set the weaving position. Displace.

  The above embodiment can be modified as follows. In the above-described startup program A41, a series of spindle drive steps from the restoration of the cause of the stop to the start of the steady-state operation are step-processed by the push-button operation, but may be automatically performed after the first push-button operation. In addition, the timing of displacing the weaving position, in other words, the output timing of the start-up preparation signal is not limited to immediately before the start of the steady operation, and may be performed at any time between the standby state and the start of the steady operation. Is also good. The same applies to the other startup programs.

  In addition, the startup methods A31 and A41 are selected for the startup program to be used. However, the selection is not limited to this, and the startup methods (1), (2), and (3) are arbitrarily selected from the different categories. You can also. For example, two different classifications such as the activation method A11 and the activation method A31, and the activation methods A21 and A31 may be selected as the cause of stoppage and the weaving conditions such as the woven fabric and the driving density. In addition, for the start-up methods (2) and (3), that is, for a start-up program that involves jogging or reversing to the first or second main-axis angle, a start-up method (start-up program) with a different first or second main-axis angle is selected. You can also. In this manner, the displacement amount of the weaving position may be set in accordance with the selected starting method (starting program).

  According to such a start-up method, during the operation preparation period, the displacement amount of the cloth fell position suitable for each start-up method (start-up program) is set, and thereafter, the steady operation is started. Even if the program is changed, weaving steps can be reliably prevented.

  Incidentally, in the specific example of FIG. 5, as a preferred embodiment, the feed motor 16 for the warp 2 and the winding motor 19 for the woven fabric 8 are simultaneously driven based on the operation method of the loom of the present invention. However, the method of operating the loom of the present invention can be implemented by driving at least the feed motor 16 for the warp 2 or the winding motor 19 for the woven fabric 8.

  Next, FIG. 7 shows a specific example of the delivery controller 15 and the weaving position controller 40 on the delivery side. In FIG. 7, during the operation preparation period, the displacement amount setting unit 35 sends a signal of the displacement amount of the cloth fell position corresponding to the starting program of the selected starting method based on the stored contents of FIG. This is sent to the displacement signal generator 53 in the weaving position controller 40. When the operation preparation signal and the start method selection signal are input, the displacement amount signal generator 53 corrects the displacement amount of the weaving position by the winding diameter and, if necessary, stops from the stop time calculator 54 ( The signal of the elapsed time is input, the displacement of the weaving position is corrected by the stop (elapsed) time, the appropriate displacement of the weave 9 is set, and the signal of the appropriate displacement of the weaving position is corrected. The signal is sent to the positive input terminal of the reverse counter 55.

  Therefore, the signal of the speed command as the output of the forward / reverse counter 55 is sent to the drive amplifier 52 via the contact point 49 and the addition point 51 which are turned on during the operation preparation period. The contact point 49 is in an on state during a period of operation preparation before shifting to a steady operation. The drive amplifier 52 drives the feed motor 16 in response to the speed command signal at this time, and moves the position of the weave 9 by an appropriate displacement amount before the weave.

  The rotation of the feed motor 16 is detected by a rotation detector 56 and sent to the negative input terminal of the forward / reverse counter 55 as a rotation amount signal. Therefore, when the feed motor 16 rotates by a predetermined amount of displacement before weaving, the output of the forward / reverse counter 55 (speed command signal) becomes zero, and the drive amplifier 52 stops driving the feed motor 16. .

  When the period of the operation preparation has elapsed and the operation shifts to the steady operation, the delivery controller 15 performs the tension control on the warp 2 so as to send out the warp 2 by, for example, the tension detector 28 at the position 4 of the back roll. The tension of the warp yarn 2 is detected. The detected tension is added as a negative signal to the signal of the target tension set by the target tension setter 42 at an addition point 43, and sent to the tension controller 44 as a tension deviation. Here, the tension controller 44 performs PID control, generates a speed command signal proportional to the tension deviation, and outputs the signal to the addition point 45.

  On the other hand, the basic speed generator 46 generates a signal of a basic speed command based on weaving conditions such as the number of revolutions of the loom 1 and the weft driving density, and outputs the signal to the addition point 45. For this reason, the winding diameter corrector 47 receives as input the signal of the sum of the speed command and the basic speed command proportional to the tension deviation, and adds the sum signal to the winding diameter of the warp 2 detected by the winding diameter detector 27. By performing the necessary correction operation ((speed command proportional to tension deviation + basic speed command) / winding diameter), a final speed command signal is generated. It is sent to the drive amplifier 52. The contact 48 is turned on by the operation signal. Therefore, during the steady operation of the loom 1, the drive amplifier 52 drives the delivery motor 16 by the signal of the final speed command.

  Next, FIG. 8 shows a specific example of the take-up controller 18 and the pre-weaving position controller 41 on the take-up side. In FIG. 8, during the operation preparation before the steady operation, the displacement amount setting unit 35 outputs a signal of the weaving position displacement amount corresponding to the starting program of the selected starting method to the take-up side weaving position controller. The signal is sent to a displacement signal generator 59 in 41. When the operation preparation signal and the selection signal of the starting method are input, the displacement signal generator 59 adds the signal of the displacement amount of the cloth fell position appropriate for the selected starting method to the positive / reverse counter 55 via the addition point 58. To the input terminal on the side.

  The forward / reverse counter 60 receives the displacement amount signal of the cloth fell position from the displacement amount signal generator 59 as an input, generates an output for winding, and sends the output to the drive amplifier 61. Therefore, the drive amplifier 61 moves the weaving cloth 9 by driving the winding motor 19 by an amount corresponding to the displacement amount of the weaving position suitable for the selected starting method during the preparation for starting. . During the period of the operation preparation, the basic speed generator 57 does not output the signal of the basic speed.

  The rotation of the take-up motor 19 is detected by the rotation detector 62 and sent to the negative input terminal of the forward / reverse counter 60 as a rotation amount signal. Therefore, at the time when the take-up motor 19 rotates by the displacement amount of the predetermined weaving position, the output (speed command signal) of the forward / reverse counter 60 becomes zero, and the drive amplifier 61 drives the take-up motor 19. Stop. As described above, the take-up side weaving position controller 41 is selected by driving the take-up motor 19 by an amount corresponding to the appropriate amount of displacement of the weaving position during the operation preparation period. Move the weaving cloth 9 to a position suitable for the activation method.

  When the operation preparation period has elapsed and the operation shifts to the steady operation, the basic speed generator 57 in the winding controller 18 outputs the driving density signal and the like from the rotation detector 23 in addition to the rotation (speed) signal of the main shaft 23. Then, a signal of a basic speed for winding is generated and sent to the positive input terminal of the forward / reverse counter 60 via the addition point 58. At this time, the displacement signal generator 59 does not generate any output. The forward / reverse counter 60 receives the signal of the basic speed from the basic speed generator 57 as an input, generates an output for winding, and sends the output to the drive amplifier 61. Therefore, the drive amplifier 61 drives the winding motor 19 during the steady operation to wind up the woven fabric 8 following the progress of weaving.

  Incidentally, the displacement amount of the pre-weaving position is set in accordance with the starting method (starting program). Specifically, (a) in order to reflect the warp shedding state until the steady operation, (B) information on whether or not the weft woven immediately before is removed at the time of restoring the cause of the stop to reflect the cause of the stop, And information about whether or not weft insertion is performed until the steady operation is performed. (C) In order to reflect the beating state, whether or not beating by jogging and reversing until the steady operation is performed. The number of beats in the presence of beating, (d) the time from stoppage or stoppage to normal operation in order to correspond to the elongation of the warp (movement of the position before the fiber) due to the lapse of time. , Is set from the viewpoint of

  The displacement signal generators 53 and 59 use a circuit as shown in FIG. 8 and FIG. 9 described later to set the displacement amount of the weaving position from the above viewpoint, or an empirical value considering these. Is configured using a circuit that generates a displacement amount signal of Further, the displacement amount of the pre-weaving position can be any irrespective of the displacement (feed) to the winding side and the displacement (return) to the sending side, and further described in JP-A-61-63749. As described above, in consideration of the frictional resistance between the warp yarn 2 and the reed 6, the heald 5, etc., the drive that combines the displacement (feed) to the winding side and the displacement (return) to the delivery side with time is used. Is also possible.

  FIG. 9 shows a specific example of the displacement signal generator 53 or the displacement signal generator 59 at the weaving position. In FIG. 9, the selector 63 receives one of the activation method selection signals, selects one of the plurality of signal generators 64 provided corresponding to the plurality of activation methods, and outputs the selected signal to the multiplier 65. Here, when the multiplier 65 receives the operation preparation signal, the multiplier 65 calculates (multiplies) the displacement amount of the target cloth fell position set in the displacement amount setting device 35 and the signal from the selected signal generator 64. ) To generate a displacement signal. According to this, it is not necessary to set the displacement amount before weaving for each activation method, and the setting operation is simplified.

  Next, FIG. 10 shows another specific example of the displacement signal generator 53 or the displacement signal generator 59 at the position before the weaving. In FIG. 10, the parameter generator 66 receives the selection signal of the starting method, and from the above-mentioned viewpoint, (a) data of an angle to stop due to jolting or reverse rotation, an angle to start a steady operation, and (b) a cause of stop At the time of restoration, data on whether or not the weft woven immediately before is removed, and thereafter, data on whether or not weft insertion is performed before the steady operation is performed; The data of the presence / absence of beating due to the inching / reversing up to and the number of times of beating when there is beating are sent to the function generator 67. The function generator 67 includes, in addition to the data of (a), (b), and (c) above, data of the remaining one viewpoint (d) the stop time and the time from when the vehicle stops to when the vehicle enters the steady operation. Is generated from the time generator 68, and a function signal that changes proportionally, inversely proportional, exponentially increases or decreases, or changes quadratic or nth order with respect to these data is generated and output to the multiplier 69. Here, when the multiplier 69 receives the operation preparation signal, the multiplier 69 calculates (multiplies) the target weaving movement amount set in the displacement amount setting unit 35 and the signal from the selected function generator 67. Generate a displacement signal. This also makes it unnecessary to set the displacement amount of the weaving position for each activation method, and simplifies the setting operation using complicated data.

  As described above, the pre-weaving position displacement means may be only one of the sending-out movement of the warp 2 and the winding-up movement of the woven fabric 8, but not both. The weaving position displacing means is a means for directly changing the weaving position, for example, a driving mechanism for the back-and-forth direction of the back roll 4, a pile, in addition to means relating to the feeding motion of the warp yarn 2 and the winding motion of the woven fabric 8. It can also be constituted by a cloth moving mechanism of a loom.

It is explanatory drawing of the starting method of a loom. It is explanatory drawing of the starting method of a loom. It is explanatory drawing of the starting method of a loom. It is a schematic side view of a loom. It is a block diagram of the operation device of a loom. It is a table | surface of the displacement amount of the weaving position corresponding to the starting method of a loom. It is a block diagram of a delivery controller and a weaving position controller. It is a block diagram of a winding control and a weaving position controller. It is a block diagram of a displacement amount signal generator. It is a block diagram of a displacement amount signal generator.

Explanation of reference numerals

REFERENCE SIGNS LIST 1 loom 3 feed beam 4 back roll 9 weaving 11 guide roll 15 feed controller 16 feed motor 18 take-up controller 19 take-up motor 21 take-up drive 22 main shaft 26 motor motor 29 main shaft controller 30 loom operating device 31 Main controller 32 Selector 33 Storage device 34 Setting device 35 Displacement amount setting device 36 Run button 37 Jogging button 38 Reverse button 39 Stop button 40, 41 Weaving position controller 53 Displacement amount signal generator 54 Stop time calculator 59 Displacement signal generator 63 Selector 64 Signal generator 66 Parameter generator 67 Function generator 68 Time generator

Claims (5)

When the operation of the loom is started, the loom that drives the pre-weaving displacement member to displace the pre-weaving position to a desired position, and then starts a steady operation,
In the loom, a plurality of starting methods are set for each of a plurality of stop causes, and at least one of the plurality of start methods set for each of the stop causes includes at least one prior to the start of the steady operation. A setting is made to perform a step of jogging or reversing from a main spindle angle for recovering the cause of stop to a predetermined main spindle angle, and the displacement amount of the weaving position is set corresponding to each starting method,
When the operation is started after the loom is stopped, one of a plurality of starting methods set according to the cause of the stop is selected to drive the loom main shaft, and the displacement of the weaving position corresponding to the selected starting method. A method for operating a loom, characterized in that a weaving position is displaced according to an amount. 2. The method according to claim 1, wherein the plurality of activation methods set for each of the activation methods include at least two of the following activation methods (1), (2), and (3). How to operate the loom.
(1) Start method for starting steady operation from the main shaft angle to be corrected for stop cause (2) Start method for starting normal operation after reversing from the main shaft angle to be corrected for the first main shaft angle different from the cause for stop (3) Stop cause Starting method for starting normal operation after normal rotation from a main spindle angle to be restored to a different second main spindle angle The method according to claim 2, wherein the plurality of starting methods include a plurality of starting methods having different first or second spindle angles. The loom operating method according to any one of claims 1 to 3, wherein the displacement amount of the pre-weaving position is set by adding a stop time of the loom to a parameter. A storage device for storing a plurality of start programs related to the main shaft drive at the start of the loom operation for each cause of the loom stop;
A selector that outputs a selection signal that selects any one of a plurality of start programs set for each stop cause according to the stop cause of the loom,
Spindle drive means for driving a drive motor of the spindle according to the start-up program corresponding to the selection signal;
A displacement amount setting device for setting the displacement amount of the weaving position in response to the selection signal;
A weave position controller that drives a weave position displacement member according to the selected displacement amount,
At least one of the plurality of storage programs set for each of the stop causes is set to perform a step of jogging or reversing to a predetermined spindle angle prior to the start of the steady operation,
In the displacement amount setting device, the displacement amount of the weaving position according to each start program of each stop cause dance is set respectively corresponding to the selection signal,
When the loom operation starts, when an operation signal is input to the spindle control means, the spindle drive means drives the driving motor according to a start program corresponding to the selection signal, and outputs an operation preparation signal before starting the steady operation. Output to the weaving position controller, wherein the weaving position controller drives the weaving position displacement member according to the displacement amount corresponding to the selection signal in response to the input of the operation preparation signal. Driving device.

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