JP4974266B2 - Loom operating method and loom operating device - Google Patents

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 at the start of operation of the loom.

  When a cause of a stop occurs in the loom, for example, as shown in FIGS. 1 to 3, braking is performed after the cause of the stop is generated, and the loom is stopped in a cycle subsequent to the stop cause generation cycle. Next, a loom standby method is adopted in which the yarn is reversed to a predetermined main shaft angle and the weaving step due to the warp elongation due to the warp opening state is suppressed. Then, after the stop cause repair work is performed, the loom is started again. As a typical loom start-up method when the loom is restarted after the cause of the stop is repaired, the following (1) normal start-up method, (2) start-up method with reverse rotation, and (3) 60 ° start-up method Are known. The outline of each activation method is as follows.

  (1) Ordinary start-up method: This normal start-up method is a normal start-up method for general looms. As shown in FIG. 1, the loom is the main shaft angle at which the warp closing state occurs in the cycle causing the stoppage. If it is a non-weft insertion error such as a warp breakage according to the cause of the stop, 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, since the cause of the stop is not a weft insertion error, the weft thread inserted immediately before the stop is normally inserted and does not need to be removed. Therefore, when the operator presses the operation button after repairing the cause such as warp breakage, the operator shifts to the steady operation and starts weft insertion in response to the rotation of the main shaft. The starting angle of the main shaft at this time is 300 °.

  In the starting method A12, the cause of the stop is a weft insertion error, so it is necessary to remove the weft thread inserted immediately before the stop. Therefore, the operator operates the reverse button to reverse the main shaft angle to 180 °, which is close to the maximum warp opening of the stop cause generation cycle, removes and repairs the defective weft causing the stop, and then presses the button again. To reverse the main shaft angle 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 proceeds to the steady operation as it is, and weft insertion starts in response to the rotation of the spindle.

  (2) Start-up method with reverse rotation; This start-up method is also referred to as reverse start or idle start, and solves the lack of striking force when starting the loom as a weaving step prevention measure. As shown in FIG. 2, the loom stops and waits at a main shaft angle of 300 °, which is the warp closing state of the stop cause generation cycle. If it is activated and if a weft insertion error occurs, it is activated by the activation method A22.

  In the activation method A21, the cause of the stop is not a weft insertion error. Therefore, the weft thread inserted just before the stop is normally inserted and does not need to be removed. Therefore, when the operator presses the operation button after repairing the cause of the stop such as warp breakage, the first angle in the stop cause generation cycle (for example, 120 °) or the first angle in the cycle before this is given. After the reverse rotation, the normal operation is started from the reverse rotation position without starting the weft operation, and the weft insertion is started when the first position to be inserted is reached. At this time, the starting angle of the main shaft is arbitrarily set in addition to 120 °.

  In the starting method A22, the cause of the stop is a weft insertion error, so the weft thread inserted immediately before the stop needs to be removed. Therefore, the operator operates the reverse button to reverse the main shaft angle to 180 °, which is close to the maximum warp opening of the stop cause generation cycle, removes and repairs the defective weft causing the stop, and then presses the button again. As a result, the main shaft angle is reversed to 300 °, which is the warp closing state of the cycle preceding the stop cause generation cycle. After that, when the operation button is pressed, after reverse rotation to the first angle (for example, 120 °) in the stop cause generation cycle or the first angle in the cycle before this, the normal operation is inserted from the reverse position. Start with empty shots and start weft insertion when the first position to be inserted is reached. Note that it is possible to arbitrarily set the reverse rotation position, that is, how many cycles before the stop cause generation cycle, and the first angle is not limited to 120 ° and is arbitrarily set.

  (3) 60 ° start method; This start-up method is a measure to prevent the occurrence of twill pillows in the twill structure such as 2/1. In order to make the stop stage relatively inconspicuous, It is a startup method that suppresses as much as possible. As shown in FIG. 3, the loom stops and waits at a spindle angle of 60 ° of the cycle following the stop cause generation cycle, and if it is a non-weft insertion error depending on the cause of the stop, the loom is started by the start method A31. If the weft insertion error occurs, the activation is started by the activation method A41 or the activation method A42.

  In the starting method A31, since the cause of the stop is not a weft insertion error, the weft thread inserted immediately before the stop is normally inserted and does not need to be removed. Therefore, when the operator presses the operation button after repairing the cause such as the warp breakage, the operator enters the steady operation while wefting from the standby position.

  In the activation method A41, the cause of the stop is a weft insertion error, so it is necessary to remove the weft thread inserted immediately before the stop. Therefore, the operator operates the reverse button to reverse the main shaft angle to 180 °, which is close to the maximum warp opening of the stop cause generation cycle, removes and repairs the defective weft causing the stop, and then presses the button again. Thus, the main shaft angle of the stop cause generation cycle is reversed to 60 °. After that, when the operation button is pressed, steady operation is started while wefting from this spindle angle.

  Moreover, it can replace with the said starting method A41, and the starting method 42 can also be employ | adopted. In the activation method 42, the cause of the stop corresponds to a weft insertion error, and it is necessary to remove the weft thread inserted just before the stop, as in the above-described activation method A41. Therefore, the operator operates the reverse rotation button to reverse the main shaft angle to 180 °, which is close to the maximum warp opening of the stop cause generation cycle. After that, after removing the defective weft causing the stop and repairing it, press the 1 weft insertion button to insert the 1 weft and then press the run button. Turn and start steady operation with the weft insertion from that position.

  In the starting methods A41 and A42, the main shaft starting angle of 60 ° is a position where the opening amount is almost stable at both the top and bottom, and the weft insertion can be started immediately, and if this condition is satisfied, It is not limited to 60 °.

  1 to 3, the activation methods A11, A12, A21, A22, A31, A41, and A42 indicate unique numbers, and are used later when specifying the activation method (activation program) in the description of the present invention. It is done. Incidentally, there are activation methods (activation programs) other than those illustrated in FIGS. 1 to 3, and these are represented as..., Ann after A11, A12, A21, A22, A31, A41, A42.

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

  As a technique for correcting the pre-weaving position at the start of the loom, there is one described in the following patent publication.

Japanese Patent Laid-Open No. 61-63749 JP-A-3-227430

  Patent Document 1 discloses a technique for starting a steady operation after a feed beam is reversed and forwardly rotated to displace a pre-weaving position to a desired position before the start of the steady operation. Moreover, in this patent document 1, since the position before weaving changes depending on the occurrence of a weft insertion error and other times, the displacement amount of the position before weaving should be set corresponding to the cause of the loom stoppage. Is also shown.

  Further, the above-mentioned Patent Document 2 pays attention to the point that the initial striking force changes due to the fluctuation of the starting angle of the loom, and when starting the loom, according to the target kickback amount set corresponding to the starting angle, A technique for preventing a weaving step in which at least one of a winding motor and a feeding motor is driven in reverse is disclosed.

  However, a loom where multiple starting methods are set with operations such as inversion and weft insertion before entering steady operation, and the displacement amount of the pre-weaving position is set for each starting method selected by the loom. There is no technology to set up so far. According to the studies by 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 stop cause.

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

  Based on the above object, the present invention sets the displacement amount of the pre-weaving position for each of the plurality of activation methods, and corrects the pre-weaving position according to the displacement amount corresponding to the activation method to be selected. The weaving steps associated with the start-up are inconspicuous.

Specifically, the operation method of the loom according to the present invention is a loom that starts a steady operation after driving a pre-weaving displacement member and displacing a pre-weaving position to a desired position at the start of 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 stop cause is prior to the start of steady operation, It is set to perform the step of inching or reversing from the main shaft angle for repairing the cause of the stop to the predetermined main shaft angle, and the displacement amount of the pre-weaving position corresponds to each of the starting methods for each of the stop causes. Even when the same starting method is used, it is set differently depending on the cause of the stop. It drives the loom main shaft by selecting any of the methods, to displace the front position weave accordance displacement amount before position weave set corresponding to the activation method chosen, characterized in that.

The plurality of activation methods set for each activation method may include at least two activation methods among the following activation methods (1), (2), and (3).
(1) Start-up method for starting steady operation from the main shaft angle for repairing the cause of stoppage (2) Start-up method for starting normal operation after reverse rotation from the main shaft angle for repairing the cause of stoppage to a different first main shaft angle (3) Cause of stoppage Start-up method of starting steady operation after normal rotation from the main spindle angle to be repaired to a different second main spindle angle

The activation methods (1), (2), and (3) correspond to the activation methods A11 to A42 described below.
(1) Start-up method for starting steady operation from the spindle angle for repairing the cause of stop--Start-up methods A11, A31
(2) Start method A12, A21, A22, A41 for starting steady operation after reverse rotation from main shaft angle to repair cause to different first main shaft angle
(3) Start-up method for starting steady operation after starting normal rotation from the main shaft angle to be repaired to the second main shaft angle ... Start-up method A42

  The plurality of activation methods may include a plurality of activation methods having different first or second main shaft angles, and the displacement amount of the pre-weaving position is calculated by adding the loom stop time to the parameter. It may be set.

  Further, the loom operating device of the present invention is a starter program related to the spindle drive at the start of operation of the loom, a storage device storing a plurality of start programs for each of a plurality of stop causes in the loom, and a loom of the loom A selector that outputs a selection signal for selecting one of a plurality of start programs set for the cause of the stop, and a driving motor for the spindle according to the start program corresponding to the output selection signal A plurality of pre-weaving position displacement amounts set corresponding to each of the spindle driving means for driving and a plurality of activation programs for each of the stop causes, even in the same activation method, depending on the cause of the stop A displacement amount setter in which a plurality of displacement amounts at a plurality of pre-weaving positions including different displacement amounts are set in response to the selection signal; and an output A pre-weaving position controller that drives the pre-weaving position displacement member according to the displacement amount corresponding to the selection signal, and at least one of a plurality of activation programs set for each stop cause is the steady state Prior to the start of operation, it is set to perform an inching or reversing step up to a predetermined spindle angle.When the operation signal is input to the spindle control means at the start of operation of the loom, the spindle drive means The driving motor is driven in accordance with the start program corresponding to, and before starting the steady operation, an operation preparation signal is output to the pre-weaving position controller, and the pre-weaving position controller receives the operation preparation signal. Along with this, the pre-weaving position displacement member is driven in accordance with the displacement amount set corresponding to the selection signal, and thereafter, the operation shifts to a steady operation.

  According to the present invention, a plurality of different starting methods are set for each of the stopping causes, and when starting after the loom stops, any starting method is selected for each stopping cause at that time, and the loom Since the position before weaving is corrected according to the amount of displacement corresponding to the activation method to be selected, the weaving steps associated with the activation of the loom are small and inconspicuous.

  FIG. 4 shows a main part and a control system of the loom 1 to be controlled. In the loom 1 shown in FIG. 1, the warp yarn 2 is fed out as a sheet from the feed beam 3, passed through the back roll 4, passed through the ridges 5 and 6, and forms an opening 7 before weaving the woven fabric 8. Has reached. On the other hand, the weft 10 is weft-inserted into the openings 7 of the upper and lower warps 2 and then beaten on the pre-weave 9 by the reed 6 to form a woven fabric 8. The woven fabric 8 is wound around the fabric winding roll 14 through the guide roll 11, one press roll 12, the clothing winding 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 delivery 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. The tension detector 28 detects the tension of the warp 2 from the load of the warp 2 at the position of the back roll 4, for example.

  The clothing roll 13 is driven in the winding direction by a winding controller 18, a winding motor 19, and a winding speed reducer 20. The fabric winding roll 14 is driven in the winding direction by a winding driver 21. The winding controller 18 is connected to a rotation detector 23 such as an encoder that detects the rotation of the main shaft 22 in order to operate in synchronization with the rotation of the main shaft 22 of the loom 1, and receives a rotation signal or a rotation angle signal from the rotation detector 23. As input. The take-up drive 21 is connected to the main shaft 22 of the loom 1 and performs a take-up operation in synchronization with the rotation of the main shaft 22.

  The heel 5 is driven by the opening driving device 24, and the heel 6 is driven by the heel driving device 25. Both the opening driving device 24 and the rod driving device 25 are interlocked with the main shaft 21 and synchronized with the rotation of the main shaft 21. The main shaft 22 is driven by a driving motor 26 and is controlled by a main shaft controller 29.

  Here, at least one of the feed motor 16 and the take-up motor 19 constitutes a pre-weaving position displacement member. The pre-weaving position displacement member can also be configured by means for directly controlling the position of the pre-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 start method (start program) selector. 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 preweaving position controller 40 on the sending side and a winding It is constituted by a pre-weaving position controller 41 on the side.

  The main controller 31 operates (starts) the main shaft 22, controls the inching, reverse rotation and stop, controls the weft insertion means, and other various types of control associated with the loom 1, and also operates the loom according to the present invention. In order to execute the control based on the input side, on the input side, in addition to the selector 32 of the activation method (activation program), the operation button 36 as the operation button, the inching button 37, the reverse rotation button 38, the stop button 39, the spindle 22 It is connected to a rotation detector 23 such as a connected encoder.

  The main controller 31 is connected on the output side to the spindle controller 29, the feed controller 15, the take-up controller 18, the pre-weave position controller 40 on the send side, and the pre-weave position controller 41 on the take-up side. In addition, it is connected to the storage device 33 and the setting device 34 in a state where bidirectional signals and data can be transmitted.

  The starter (startup program) selector 32 includes, for example, a large number of manually operated selection switches, and automatically generates a selection signal corresponding to the combination of the cause of stoppage and the weaving density as the weaving condition data. The start signal (start program) selection signal is sent to the main controller 31 and the displacement amount setter 35. The main controller 31 and the main shaft controller 29 constitute main shaft driving means, and drive the main shaft 22 by the rotation of the feed motor 16 in accordance with the start program corresponding to the start program selection signal.

  Further, the displacement amount setting unit 35 sets and stores the displacement amount at the pre-weaving position corresponding to the selection signal of the activation method (activation program), and at the time of preparation for activation, outputs the displacement amount signal at the pre-weaving position. The pre-weaving position controller 40 on the sending side and the pre-weaving position controller 41 on the winding side are sent.

  FIG. 6 exemplifies a storage form of the displacement amount of the pre-weaving position on the sending side and the winding side with respect to the activation method (activation program) in the displacement amount setting unit 35. The storage forms are the start-up weaving displacement amounts F11, F12, F21, F22, F31 for each of the activation methods (activation programs) A11, A12, A21, A22, A31, A41, A42,. , F41, F41, F42,..., Fnn and pre-weaving displacement amounts R11, R12, R21, R22, R31, R41, R42,. Here, pre-weaving displacement amounts F11, F12, F21, F22, F31, F41, F42,..., Fnn on the sending side and pre-weaving displacement amounts R11, R12, R21, R22, R31, R41 on the winding side, R 42,..., Rnn are forward rotation in the feeding direction and winding direction, reverse rotation with respect to the feeding direction and reverse rotation with respect to the winding direction, and reverse rotation depending on the starting method (starting program). Is set.

  The pre-weaving position controller 40 on the sending side and the pre-weaving position controller 41 on the take-up side are set in the pre-weaving position according to the selected starting method (starting program) during the operation preparation period before entering the steady operation. Based on the displacement amount signal, the delivery motor 16 and the take-up motor 19 are driven to rotate the delivery beam 3 and the clothing winding roll 13 to displace the position of the weave 9 by the displacement amount.

  The specific configurations of the feeding controller 15, the winding controller 18, the pre-weaving position controller 40 on the sending side, and the pre-weaving position controller 41 on the winding side will be described in detail later with reference to FIGS. .

  The storage device 33 stores a program of a starting method based on the operating method of the loom of the present invention, stores data necessary for starting control of the loom 1, and inputs these to the main controller 31 when necessary. The setting device 34 sets control start angle, reverse rotation stop angle, presence / absence of weft insertion, steady operation start angle, and other control device data as start control data, and inputs them to the main controller 31. .

  Now, in FIG. 5, at the setting stage of the control of the loom 1, the selector 32 is activated when the loom 1 is activated by an operator's selection operation or by an automatic selection operation according to the cause of the loom's stoppage. Identify the method. At this time, the selector 32 sends an activation program selection signal corresponding to the identified activation method to the main controller 31 and to the displacement amount setting unit 35. The main controller 31 reads the activation program corresponding to the identified activation method from the storage device 33, and prepares for execution of the read activation program.

  Further, the displacement amount setting unit 35 sends a displacement amount signal at the pre-weaving position corresponding to the activation program of the activation method specified based on the storage form of the displacement amount at the pre-weaving position in FIG. This is sent to the front position controller 40 and the pre-weaving position controller 41 on the winding side. Here, the pre-weaving position controller 40 on the feeding side and the pre-weaving position controller 41 on the take-up side prepare for the subsequent operation start based on the received displacement amount signal of the pre-weaving position.

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

  Now, when the cause of the stop of the non-weft insertion error such as the warp breakage occurs in the loom 1 during operation, the main controller 31 stops the loom 1 according to the standby method stored in advance. Specifically, braking is started immediately after the cause of the stop, and the loom 1 is stopped in the next cycle of the cause-of-stop cycle, and in order to avoid unnecessary strikes, the cycle is reversed to 60 ° and in a standby state. become. On the other hand, a stop cause signal is input to the selector 32, and the selector 31 receives a selection signal for selecting the activation method A 31 corresponding to the input as the main controller 31 and the pre-weaving position controller 40. , 41.

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

  When the position of the pre-weaving 9 is displaced by the amount of displacement during the operation preparation period, the pre-weaving position controller 40 on the sending side and the pre-weaving position controller 41 on the take-up side are respectively the feed motor 16 and the take-up motor 19. Stop driving.

  After the operation preparation period elapses, the main controller 31 sends an operation signal to the main spindle controller 29 and starts the prime motor 26 by the main spindle controller 29 based on the specified start-up program. Start driving. When shifting to the steady operation, the delivery controller 15 drives the delivery motor 16 by tension control, and the take-up controller 18 takes in the rotation signal from the rotation detector 23 and turns the take-up motor 19 on. To drive.

  On the other hand, if a weft insertion error occurs during operation, the main controller 31 reverses to 60 ° of the stopped cycle and enters a 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 pre-weaving position controllers 40 and 41 in response to the stop cause input.

  When the operator arrives, the reverse button 36 is pressed to remove the weft insertion error yarn. When a reverse signal is sent to the main controller 31 as a reverse operation signal, the main controller 31 reverses to 180 ° of the stop cause generation cycle in accordance with the activation program A41. Thereafter, when the operator removes the weft insertion error yarn and presses the reverse rotation button 36 again, the reverse rotation signal is input again to the main controller 31, and the main controller 31 follows the program at 60 ° of the stop cause generation cycle. Stop. Then, when the operator presses the operation button 36, the main controller 31 makes the pre-weaving position controller 40 on the sending side and the pre-weaving position controller 41 on the take-up side before entering the steady operation, that is, during the operation preparation period. Send an operation preparation signal to. For this reason, the controller 40 and the controller 41 drive the feed motor 16 and the take-up motor 9 according to the set displacement amounts F41 and R41 of the pre-weaving position corresponding to the selection signal of the activation method, and set the pre-weaving position. Displace.

  The above embodiment can be modified as follows. In the startup program A41 described above, a series of spindle driving steps after the stop cause repair until the start of steady operation is stepped by push button operation, but may be automatically performed after the first push button operation. In addition, the timing for displacing the pre-weaving position, in other words, the output timing of the start preparation signal is not limited to immediately before the start of steady operation, and any timing may be used from the standby state to the start of steady operation. Also good. The same applies to the other startup programs.

  In addition, the activation methods A31 and A41 are selected for the activation program to be used. However, the activation methods are not limited to this selection, and arbitrarily selected from the classifications of the activation methods (1), (2), and (3) described above. 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 the stop and the weaving conditions such as the fabric and the driving density. In addition, for activation methods (2) and (3), that is, activation programs with inching or reverse rotation up to the first or second spindle angle, the activation methods (activation programs) having different first or second spindle angles are selected. You can also. In this manner, the displacement amount of the pre-weaving position may be set in accordance with the activation method (activation program) to be selected.

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

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

  Next, FIG. 7 shows a specific example of the delivery controller 15 and the pre-weaving position controller 40 on the delivery side. In FIG. 7, during the operation preparation period, the displacement amount setting unit 35 sends a displacement amount signal at the pre-weaving position corresponding to the activation program of the selected activation method based on the stored contents of FIG. This is sent to the displacement amount signal generator 53 in the pre-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 at the pre-weaving position with the winding diameter and, if necessary, stops from the stop time calculator 54 ( Elapsed) time signal is input, the displacement amount of the pre-weaving position is corrected by the stop (elapsed) time, the appropriate displacement amount of the pre-weaving position 9 is set, and the appropriate displacement amount signal of the pre-weaving position is corrected. This is sent to the input end of the reverse counter 55 on the plus side.

  For this reason, the speed command signal as the output of the forward / reverse counter 55 is sent to the drive amplifier 52 through the contact point 49 and the addition point 51 which are in the ON state during the operation preparation period. The contact 49 is in an ON state during the preparation for operation before shifting to steady operation. The drive amplifier 52 drives the feed motor 16 by the speed command signal at this time, and moves the position of the pre-weaving 9 by an appropriate displacement amount before the weaving.

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

  When the operation preparation period elapses and the operation shifts to the steady operation, the delivery controller 15 controls the tension on the warp 2 to send out the warp 2 by, for example, the tension detector 28 at the position 4 on the back roll. The tension of the warp 2 is detected. The detected tension is added as a negative signal at the addition point 43 to the target tension signal set by the target tension setting unit 42 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 it to the addition point 45.

  On the other hand, the basic speed generator 46 generates a basic speed command signal based on the weaving conditions such as the rotational speed of the loom 1 and the weft driving density and outputs it 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 proportional to the tension deviation and the basic speed command, and uses this sum signal as the winding diameter of the warp 2 detected by the winding diameter detector 27. Based on the above, the necessary correction calculation [(speed command proportional to tension deviation + basic speed command) / winding diameter] is performed to generate a final speed command signal, and through the contact 48 and the addition point 51, Send to drive amplifier 52. The contact 48 is turned on by an operation signal. Therefore, during the steady operation of the loom 1, the drive amplifier 52 drives the feed motor 16 by a final speed command signal.

  Next, FIG. 8 shows a specific example of the winding controller 18 and the pre-weaving position controller 41 on the winding side. In FIG. 8, during the operation preparation period before the steady operation, the displacement amount setting unit 35 outputs a pre-weaving position displacement amount signal corresponding to the activation program of the selected activation method on the winding side before weaving position controller. 41 is sent to a displacement amount signal generator 59. When the operation preparation signal and the start method selection signal are input, the displacement amount signal generator 59 sends a displacement amount signal suitable for the selected start method to the plus / minus counter 55 via the addition point 58. Into the input end on the side.

  The forward / reverse counter 60 receives the displacement amount signal at the pre-weaving position from the displacement amount signal generator 59 as an input, generates an output for winding, and sends this to the drive amplifier 61. Accordingly, the drive amplifier 61 moves the weave 9 by driving the winding motor 19 by an amount corresponding to the displacement amount of the pre-weaving position appropriate for the selected activation method during the preparation for activation. . During the operation preparation period, the basic speed generator 57 does not output a basic speed signal.

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

  When the operation preparation period elapses and the operation shifts to the steady operation, the basic speed generator 57 in the winding controller 18 sends a rotation density (speed) signal of the spindle 23 from the rotation detector 23, a driving density signal, and the like. Then, a basic speed signal 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 an output. The forward / reverse counter 60 receives the basic speed signal from the basic speed generator 57 as an input, generates an output for winding, and sends this to the drive amplifier 61. Therefore, the drive amplifier 61 drives the take-up motor 19 during the steady operation to take up the woven fabric 8 following the progress of weaving.

  Incidentally, the amount of displacement of the pre-weaving position is set according to the starting method (starting program). Specifically, (a) in order to reflect the warp opening state until steady operation, Angle to stop by reverse rotation, angle to start steady operation, (b) information on whether or not the weft weaved immediately before is removed at the time of repair of the cause of the stop to reflect the cause of the stop, And after that, information on whether or not to be inserted before reaching the steady operation, (c) presence / absence of strike due to jogging / reverse rotation until steady operation in order to reflect the strike situation, Number of beatings when there is punching, (d) Stopping time or time from stopping to normal operation in order to correspond to warp elongation (movement amount of pre-fiber position) over time, etc. , From the viewpoint of.

  The displacement signal generators 53 and 59 use circuits as shown in FIGS. 8 and 9 to be described later in order to set the displacement amount at the pre-weaving position from the above viewpoint, or experience values in which these are taken into consideration. It is comprised using the circuit which generate | occur | produces the displacement amount signal. Further, the displacement amount at the pre-weaving position can be any of displacement (feed) to the take-up side and displacement (return) to the take-out side, and further described in JP-A 61-63749. As described above, considering the frictional resistance between the warp yarn 2 and the reed 6 and reed 5 and the like, the drive that combines the displacement (feed) to the take-up side and the displacement (return) to the take-out side over time. Is also possible.

  FIG. 9 shows a specific example of the displacement amount signal generator 53 or the displacement amount signal generator 59 at the pre-weaving position. In FIG. 9, the selector 63 receives the selection signal of the activation method, 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 pre-weaving position set in the displacement amount setting unit 35 and the signal from the selected signal generator 64. ) Generates a displacement signal. This eliminates the need to set the pre-weaving displacement amount for each activation method, and simplifies the setting work.

  Next, FIG. 10 shows another specific example of the displacement amount signal generator 53 or the displacement amount signal generator 59 at the pre-weaving position. In FIG. 10, the parameter generator 66 receives the selection signal of the starting method, and from the above viewpoint, (a) data on the angle at which to stop by inching or reverse rotation, data on the angle at which steady operation is started, (b) cause of stopping Data on whether or not the weft weaved immediately before is removed at the time of restoration, and data on whether or not the weft is inserted before reaching the steady operation, and (c) reaches the steady operation The presence / absence of hitting due to jogging / reversal up to and the number of hits when hitting are sent to the function generator 67. In addition to the data (a), (b), and (c), the function generator 67 is the remaining one point of view (d) data of the stop time and the time from the stop until the start of steady operation. Is generated from the time generator 68, and a function signal that changes proportionally, inversely, exponentially increases / decreases, or changes in a quadratic function or an n-order function is generated for these data, and is output to the multiplier 69. When the multiplier 69 receives the operation preparation signal, the multiplier 69 calculates (multiplies) the target pre-weaving movement amount set in the displacement amount setting unit 35 and the signal from the selected function generator 67. A displacement signal is generated. This also eliminates the need to set the displacement amount of the pre-weaving position for each activation method, and simplifies the setting work using complicated data.

  As already described, the pre-weaving position displacing means may be only one of the warp yarn 2 feeding movement and the woven cloth 8 winding movement. Further, the pre-weaving position displacing means may be a means for directly changing the pre-weaving position, for example, a driving mechanism in the front-rear direction of the back roll 4, a pile, in addition to the means involved in the warp 2 movement and the woven cloth 8 winding movement. It can also be configured 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 operating device of a loom. It is a table | surface of the displacement amount of the position before weaving corresponding to the starting method of a loom. It is a block diagram of a delivery controller and a pre-weaving position controller. It is a block diagram of a winding controller and a pre-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 symbols

DESCRIPTION OF SYMBOLS 1 Loom 3 Feeding beam 4 Back roll 9 Weaving 11 Guide roll 15 Feeding controller 16 Feeding motor 18 Winding controller 19 Winding motor 21 Winding driver 22 Spindle 26 Driving motor 29 Spindle controller 30 Driving device 31 of loom Main controller 32 Selector 33 Memory 34 Setter 35 Displacement amount setter 36 Run button 37 Inching button 38 Reverse button 39 Stop button 40, 41 Pre-weaving position controller 53 Displacement 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 (3)

A loom that starts a steady operation after driving a pre-weaving displacement member and displacing a pre-weaving position to a desired position at the start of 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 stop cause is prior to the start of the steady operation. , It is set to perform the process of inching or reversing from the main shaft angle to repair the cause of the stop from the main shaft angle
Furthermore, the displacement amount of the pre-weaving position is set so as to correspond to each of the activation methods for each stop cause and include different displacement amounts depending on the cause of the stop even in the same activation method,
When starting the operation after the loom stops, select one of multiple start methods set for the cause of the stop to drive the loom spindle and support the selected start method. A method of operating a loom, characterized in that the pre-weaving position is displaced according to the set displacement amount of the pre-weaving position. The loom operating method according to claim 2, wherein the displacement amount of the pre-weaving position is set by adding a stop time of the loom to a parameter. A storage unit that stores a plurality of startup programs for each of a plurality of causes of stop in the loom, which is a startup program related to the spindle drive at the start of operation of the loom;
A selector that outputs a selection signal for selecting one of a plurality of startup programs set for the cause of the stop when the loom stops;
Spindle driving means for driving the driving motor of the spindle according to the activation program corresponding to the output selection signal;
Displacement amounts of a plurality of pre-weaving positions set corresponding to each of the plurality of activation programs for each of the stop causes, and the displacement amounts set differently depending on the cause of the stop even in the same activation method A displacement amount setting device in which a plurality of displacement amounts at a plurality of pre-weaving positions including are set in response to the selection signal;
A pre-weaving position controller that drives a pre-weaving position displacement member according to the displacement amount corresponding to the output selection signal;
At least one of a plurality of activation programs set for each stop cause is set to perform a step of inching or reversing to a predetermined spindle angle prior to starting the steady operation,
When the operation signal is input to the spindle control means at the start of operation of the loom, the spindle driving means drives the driving motor according to the startup program corresponding to the selection signal and prepares for operation before starting the steady operation. A signal is output to the pre-weaving position controller, and the pre-weaving position controller drives the pre-weaving position displacement member according to the amount of displacement set corresponding to the selection signal in response to the input of the operation preparation signal, Thereafter, the loom operating device is shifted to steady operation.

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