JPH1181092A - Braking control apparatus in weaving machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a braking control apparatus capable of not transmitting the driving force of a weaving machine driving motor to an object to be moved in the braking released state of a braking means during the suspension of the weaving machine. SOLUTION: A solenoid clutch mechanism 18 and a solenoid braking mechanism 19 together with a weaving machine driving motor M receive the operation control of a weaving machine control computer C. A damping releasing switch 26 is connected through a signal to the weaving machine control computer C. The weaving machine control computer C is made into an operation inhibiting state based on the input of a control releasing signal if weaving is not operated when the damping releasing signal is inputted with the turning on of the damping releasing switch 26 and the weaving machine control computer demagnetizes the solenoid brake mechanism 19. The braking state of the solenoid braking mechanism 19 is released by the demagnetization to make a main shaft 12 rotatable. In an operation inhibited state, the operation of the weaving machine driving motor M is inhibited.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake control device for a loom which includes a driven object which obtains a driving force from a loom driving motor or a braking means for braking the loom driving motor.

[0002]

2. Description of the Related Art In a loom stop device disclosed in Japanese Utility Model Laid-Open Publication No. 61-33888, the operation of a loom drive motor is stopped by the output of a stop signal by the ON operation of a stop switch, and an electromagnetic brake is operated. You. Then, the braking state of the electromagnetic brake is released by turning on the brake release switch.

[0003] In the loom stopping device disclosed in Japanese Patent Application Laid-Open No. Hei 7-316956, the operation state of the brake device (ie, the braking state).
Is automatically switched to the non-operation state (ie, the braking release state) after the loom stops.

When the operation of the loom drive motor is stopped and the brake device is in the brake release state, the main shaft of the loom can be manually rotated. When the main shaft of the loom is manually rotated, for example, a handwheel as disclosed in Japanese Utility Model Laid-Open No. 4-44390 is used.

[0005]

However, it is necessary to prevent the main shaft of the loom from being rotated by the loom drive motor by mistake when the handwheel is assembled to the loom. Gazette, JP-A-7-316
There is no disclosure of such a measure in any of the apparatuses disclosed in Japanese Patent No. 956.

It is an object of the present invention to prevent the driving force of the loom driving motor from being transmitted to the driven object when the weaving is stopped by the braking means during the stop of weaving.

[0007]

In order to achieve the above object, the present invention is directed to a driven object which obtains a driving force from a loom driving motor or a loom provided with braking means for applying a brake to the loom driving motor. According to the first aspect of the present invention, the brake release signal output means for outputting a brake release signal for bringing the brake means into the brake release state, and the braking based on the brake release signal output from the brake release signal output means The braking control device includes a braking release state, and control means for inhibiting the operation of the loom driving motor.

When the brake release signal output means outputs the brake release signal, the control means sets the brake means in the brake release state and inhibits the operation of the loom drive motor. Therefore, the driving force of the loom drive motor is not transmitted to the driven object in the brake release state of the brake means after the brake release signal output means outputs the brake release signal.

According to the second aspect of the present invention, a driving signal output means for outputting a driving signal for starting the operation of the loom driving motor and a braking signal for outputting a braking return signal for bringing the braking means into a braking state. A return signal output unit, wherein the control unit outputs the operation start signal until the brake return signal is output from the brake return signal output unit after the brake release signal is output from the brake release signal output unit. Output is now invalidated.

When the brake release signal output means outputs the brake release signal, the control means sets the brake means in the brake release state, invalidates the output of the operation start signal, and inhibits the operation of the loom drive motor.

According to a third aspect of the present invention, there is provided a clutch device which is interposed on a driving force transmission path for transmitting a driving force from a loom driving motor to a driven object and can be switched between a driving force transmitting state and a disconnected state, and the control means. Disabling the brake release signal when the clutch means is in the driving force transmission state.

During weaving, the clutch means is in a driving force transmitting state, and the brake release signal output from the brake release signal output means during weaving is invalidated. Therefore, the loom driving motor does not stop due to the brake release signal output from the brake release signal output means during weaving.

According to a fourth aspect of the present invention, there is provided a clutch means interposed on a driving force transmission path for transmitting a driving force from a loom driving motor to a driven object and switching between a driving force transmission state and a disconnected state. A brake release signal output means for outputting a brake release signal for bringing the brake means into a brake release state, and a brake release output from the brake release signal output means, for a loom provided with braking means for applying a brake. A braking control device is provided that includes a control unit that sets the braking unit to a brake release state based on a signal and prohibits a driving force transmission allowable state of the clutch unit.

When the brake release signal output means outputs the brake release signal, the control means sets the brake means in the brake release state and prohibits the driving force transmission state of the clutch means.
Therefore, the driving force of the loom drive motor is not transmitted to the driven object in the brake release state of the brake means after the brake release signal output means outputs the brake release signal.

According to a fifth aspect of the present invention, a weaving start signal output means for outputting a weaving start signal for switching the clutch means from a disengaged state to a driving force transmitting state, and a braking return signal for bringing the braking means into a braking state. And a control unit that outputs the brake release signal from the brake release signal output unit until the brake return signal output unit outputs the brake return signal. Disabled output of weaving start signal.

When the brake release signal output means outputs the brake release signal, the control means sets the brake means in the brake release state, invalidates the output of the weaving start signal, and inhibits the driving force transmission state of the clutch means.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 2, an intermediate shaft 13 is arranged in series on an extension of a main shaft 12 rotatably supported by a side frame 11 of the loom. As shown in FIG. 1, a holding frame 16 is attached to the side frame 11, and the intermediate shaft 13 is rotatably supported by the holding frame 16. A flywheel 14 has a screw 1 at the end of the intermediate shaft 13.
7 for fastening. The intermediate shaft 13 obtains a driving force from a loom driving motor M via a driving belt 15. A guide hole 13 is provided in the center of the intermediate shaft 13 and the screw 17.
1 and 171 are penetrated, and a hexagonal hole 121 is formed in an end of the main shaft 12 so as to face the guide hole 131.

As shown in FIG. 2, a support bracket 20 is fixed to the holding frame 16. The tip of the support bracket 20 is arranged on an extension of the guide hole 131 of the intermediate shaft 13, and the guide cylinder 21 is attached to the tip of the support bracket 20 so as to face the guide hole 171 of the screw 17. A cover 24 is provided on the support bracket 20 with screws 2.
5 for tightening support. When the cover 24 is fastened and supported by the support bracket 20, the guide tube 21 faces the window 241 provided in the cover 24.

An electromagnetic clutch mechanism 18 and an electromagnetic brake mechanism 19 are interposed between the main shaft 12 and the intermediate shaft 13. The electromagnetic clutch mechanism 18 and the electromagnetic brake mechanism 19 are mounted on the holding frame 16. Electromagnetic clutch mechanism 1
8 is switched between a state where the driving force is transmitted from the intermediate shaft 13 to the main shaft 12 and a state where the driving force is interrupted. The electromagnetic brake mechanism 19 is switched between a braking state in which the main shaft 12 is braked and a braking release state in which no braking is applied.

The electromagnetic clutch mechanism 18 and the electromagnetic brake mechanism 19 are controlled by the loom control computer C together with the loom drive motor M. The loom control computer C turns on the operation start switch 28 which is the operation start signal output means.
The loom driving motor M is operated based on the operation, and the operation of the loom driving motor M is stopped based on the ON operation of the operation stop switch 29. The loom control computer C sends the electromagnetic clutch mechanism 18 based on the ON operation of the weaving start switch 30.
And the electromagnetic brake mechanism 19 is demagnetized.
The electromagnetic clutch mechanism 18 enters a driving force transmission state by excitation, and the electromagnetic brake mechanism 19 enters a braking release state by demagnetization. The loom control computer C outputs an electromagnetic signal based on the output of a weaving stop signal by the ON operation of the weaving stop switch 31 or the output of a weaving stop signal from the weaving stop signal generator 23 such as a weft insertion error detector or a warp breakage detector. While the clutch mechanism 18 is demagnetized and the electromagnetic brake mechanism 19 is excited, the operation of the loom drive motor M is continued. In response to the ON operation of the weaving stop switch 31, the loom control computer C demagnetizes the electromagnetic clutch mechanism 18 when the rotary encoder 22 for detecting the loom rotation angle detects a predetermined loom rotation angle, and the electromagnetic brake mechanism 1
9 is excited. As a result, the electromagnetic clutch mechanism 18 enters the driving force cutoff state, and the electromagnetic brake mechanism 19 enters the braking state.

The loom control computer C is connected to a brake release switch 26 and a brake return switch 32 by signals. The loom control computer C, which is a control means, executes the braking control program shown in the flowchart of FIG.

When the electromagnetic clutch mechanism 18 is turned off by the ON operation of the weaving stop switch 31 and the main shaft 12 is manually rotated after the electromagnetic brake mechanism 19 is brought into the braking state, first the braking is performed. The release switch 26 is turned on. By this ON operation, a brake release signal is output to the loom control computer C. The loom control computer C grasps the rotational speed of the loom based on the loom rotational angle detection information obtained from the rotary encoder 22. If the rotation speed of the loom is equal to or higher than the predetermined rotation speed, the loom control computer C determines that weaving is being performed. The loom control computer C ignores the input of the brake release signal if weaving is performed when the brake release signal is input. If weaving is not being performed when the braking release signal is input, the loom control computer C stops the operation of the loom drive motor M based on the input of the braking release signal, enters the operation inhibition state, and sets the electromagnetic brake mechanism 19 Degauss. By this demagnetization, the braking state of the electromagnetic brake mechanism 19 is released, and the main shaft 12 becomes rotatable. In the operation prohibited state, the operation of the loom drive motor M is prohibited.

The hexagonal shaft portion 271 of the manual operation tool 27 is inserted into the guide holes 171 and 131 from the guide cylinder 21, and the hexagonal shaft portion 271 at the tip of the manual operation tool 27 shown in FIG. Combine. If the manual operation tool 27 is turned in this fitted state, the main shaft 12 rotates. If the operation start switch 28 is turned ON by mistake during such manual operation, the loom control computer C invalidates the operation start signal output by the operation of turning the operation start switch 28 ON. Therefore, even when the operation start switch 28 is turned on, the loom drive motor M does not operate.

After the manual operation tool 27 is removed from the guide cylinder 21 and the brake return switch 32 serving as a brake return signal output means is turned on, a brake return signal is output to the loom control computer C. The loom control computer C excites the electromagnetic brake mechanism 19 based on the input of the braking return signal, and enters the operation allowable state. In this operation allowable state, the loom drive motor M becomes operable, and when the operation start switch 28 is turned on, the loom drive motor M operates.

In the first embodiment, the following effects can be obtained. (1-1) When the brake release switch 26, which is the brake release signal output means, is turned on and the brake release signal is output while the weaving is stopped, the loom control computer C, which is the control means, brakes the electromagnetic brake mechanism 19, which is the brake means. At the same time, the operation of the loom drive motor M is stopped, and the subsequent operation is prohibited. In the brake release state of the electromagnetic brake mechanism 19 after the brake release switch 26 outputs the brake release signal, the driving force of the loom drive motor M is not transmitted to the driven spindle 12. Therefore, the main shaft 12 and the intermediate shaft 13 do not rotate during the operation of the manual operation tool 27. (1-2) During weaving, the electromagnetic clutch mechanism 18 as the clutch means is in a driving force transmission state. Loom control computer C
Invalidates the brake release signal output from the brake release switch 26 during weaving. Therefore, the loom driving motor M is not put into the operation prohibition state by the brake release signal output from the brake release switch 26 by mistake during weaving.

Next, a second embodiment shown in the flowchart of FIG. 4 will be described. The device configuration in this embodiment is the same as that in the first embodiment. When the electromagnetic clutch mechanism 18 is turned off by the ON operation of the weaving stop switch 31 and the main shaft 12 is manually rotated after the electromagnetic brake mechanism 19 is in the braking state, first, the brake release switch 26 Is turned ON. This O
By the N operation, a brake release signal is output to the loom control computer C. If the loom control computer C is not weaving when the brake release signal is input, the loom control computer C enters the driving force transmission prohibited state based on the input of the brake release signal,
The electromagnetic brake mechanism 19 is demagnetized. By this demagnetization, the braking state of the electromagnetic brake mechanism 19 is released, and the main shaft 12 becomes rotatable. In the driving force transmission prohibited state, since the loom control computer C invalidates the weaving start signal, the excitation of the electromagnetic clutch mechanism 18 is prohibited.

In the brake release state of the electromagnetic brake mechanism 19 after the brake release switch 26 outputs the brake release signal, the electromagnetic clutch mechanism 18 blocks the transmission of the driving force, so that the driving force of the loom drive motor M is applied to the driven object. A certain spindle 1
It will not be transmitted to 2. Therefore, the main shaft 12 does not rotate during the operation of the manual operation tool 27.

Next, a third embodiment shown in FIGS. 5 and 6 will be described. The same components as those in the first embodiment are denoted by the same reference numerals. In this embodiment, the weaving permission switch 33 is signal-connected to the loom control computer C1, and the loom control computer C1 executes the braking control program shown in the flowchart of FIG.

The loom control computer C1 demagnetizes the electromagnetic clutch mechanism 18 and excites the electromagnetic brake mechanism 19 based on the input of the weaving stop signal accompanying the ON operation of the weaving stop switch 31. When a predetermined time has elapsed after the excitation and demagnetization, the loom control computer C1 enters the driving force transmission prohibited state and demagnetizes the electromagnetic brake mechanism 19.
By this demagnetization, the braking state of the electromagnetic brake mechanism 19 is released, and the main shaft 12 becomes rotatable. In the driving force transmission prohibited state, the excitation of the electromagnetic clutch mechanism 18 is prohibited.

In the brake release state of the electromagnetic brake mechanism 19 after the weaving stop switch 31 serving as the brake release signal output means outputs the weaving stop signal serving as the brake release signal, the electromagnetic clutch mechanism 18 interrupts the transmission of the driving force. In addition, the driving force of the loom drive motor M is not transmitted to the driven main shaft 12. When the weaving permission switch 33 serving as a braking return signal output unit is turned on, the loom control computer C1 turns on the weaving permission switch 33 serving as a braking recovery signal.
The electromagnetic brake mechanism 19 is excited based on the signal, and enters the driving force transmission allowable state. In the driving force transmission allowable state, the electromagnetic clutch mechanism 18 can be excited.

In this embodiment, since the loom control computer C1 as the control means automatically sets the driving force transmission prohibition state, the labor for setting the driving force transmission prohibition state by the operator can be saved.

Next, a fourth embodiment shown in FIG. 7 will be described. The same components as those in the first embodiment are denoted by the same reference numerals. A mounting prevention cover 34 is screwed to the guide cylinder 21, and a limit switch 35 is provided beside the guide cylinder 21. In a state where the cover 24 is fastened and supported by the support bracket 20, the mounting prevention lid 34 screwed to the guide cylinder 21 projects from the window 241 of the cover 24. When the mounting prevention cover 34 is at the blocking position where it is screwed onto the guide cylinder 21, the flange 341 of the mounting prevention cover 34 contacts the detection needle 351 of the limit switch 35 to dispose the detection needle 351 at the OFF position.

In order to insert the manual operation tool 27 into the guide cylinder 21, it is necessary to remove the mounting prevention cover 34 from the guide cylinder 21. When the mounting prevention cover 34 is removed from the guide cylinder 21, the detection needle 351 of the limit switch 35 is turned on.
Placed in the position. When the detection needle 351 is located at the ON position, the limit switch 35 is set to the loom control computer C.
To output an ON signal. The loom control computer C enters the operation prohibition state in response to the input of the ON signal from the limit switch 35, and demagnetizes the electromagnetic brake mechanism 19. That is, when the mounting prevention cover 34 is removed from the guide cylinder 21, the operation of the loom drive motor M is prohibited, and the ON operation of the operation start switch 28 is invalidated. When the mounting prevention cover 34 is located at the above-described prevention position, the limit switch 3
5 outputs an OFF signal to the loom control computer C, and the loom control computer C excites the electromagnetic brake mechanism 19 based on the input of the OFF signal and enters an operation allowable state.

In this embodiment, when the attachment preventing cover 34 is at the blocking position screwed onto the guide tube 21, the hand-turning operation tool 27 cannot be inserted into the guide tube 21. When the attachment preventing lid 34 is detached from the guide cylinder 21, the manual operation tool 27 can be inserted into the guide cylinder 21. At this time, the limit switch 35 which constitutes the brake release signal output means together with the mounting prevention lid 34 outputs the ON signal which is the brake release signal, and the loom control computer C invalidates the operation start signal to thereby make the loom drive motor M operation is prohibited. Therefore, in the present embodiment,
When the attachment preventing cover 34 is removed so that the hand-operating operation tool 27 can be inserted into the guide cylinder 21, the operation of the loom drive motor M is disabled, and the main shaft 12 and the intermediate shaft 13 do not rotate during the operation of the hand-operating operation tool 27. .

The present invention can be applied to a loom in which the electromagnetic clutch mechanism 18 is not interposed between the loom drive motor M and the main shaft 12.

[0037]

As described above in detail, according to the present invention, the braking means is brought into the brake release state based on the brake release signal output from the brake release signal output means, and the operation of the loom drive motor or the electromagnetic clutch mechanism is performed. The transmission of the driving force of the loom is prohibited, so that there is an excellent effect that the driving force of the loom driving motor can be prevented from being transmitted to the driven object in the brake release state of the braking means during the stop of weaving.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment.

FIG. 2 is a side sectional view.

FIG. 3 is a flowchart showing a braking control program.

FIG. 4 is a flowchart illustrating a braking control program according to a second embodiment.

FIG. 5 is a side sectional view showing a third embodiment.

FIG. 6 is a flowchart showing a braking control program.

FIG. 7 is a side sectional view showing a fourth embodiment.

[Explanation of symbols]

12: a spindle to be driven; 18: an electromagnetic clutch mechanism as a clutch means; 19, an electromagnetic brake mechanism as a braking means; 26, a brake release switch as a brake release signal output means; 28, an operation start signal output means. An operation start switch, 32: a brake return switch as a brake return signal output means, M: a loom drive motor, C: a loom control computer as a control means, C1: a loom control computer as a control means and a brake release signal output means.

Claims (5)

[Claims] 1. A loom having a braking means for applying a braking force to a driven object or a loom driving motor for obtaining a driving force from a loom driving motor, wherein the braking means outputs a braking release signal for bringing the braking means into a braking released state. Release signal output means, and, based on a brake release signal output from the brake release signal output means, bring the brake means into a brake release state;
A braking control device for a loom, comprising: control means for inhibiting operation of the loom drive motor. 2. An operation start signal output means for outputting an operation start signal for starting operation of the loom drive motor and a brake return signal output means for outputting a brake return signal for bringing the braking means into a braking state. The control means invalidates the operation start signal until the brake return signal is output from the brake return signal output means after the brake release signal is output from the brake release signal output means. 2. The braking control device for a loom according to claim 1. 3. A clutch device interposed on a driving force transmission path for transmitting a driving force from a loom driving motor to a driven object, the clutch device switching between a driving force transmission state and a cutoff state, and the control means includes: The braking control device for a loom according to any one of claims 1 and 2, wherein the brake release signal is invalidated when the vehicle is in a driving force transmission state. 4. A clutch means interposed on a driving force transmission path for transmitting a driving force from a loom driving motor to a driven object and switched between a driving force transmission state and a cutoff state, and braking means for applying a brake to the driven object. And a brake release signal output means for outputting a brake release signal for bringing the brake means into a brake release state; and a braking means based on a brake release signal output from the brake release signal output means. To the brake release state,
A braking control device for a loom, comprising: a control unit that prohibits a driving force transmission allowable state of the clutch unit. 5. A weaving start signal outputting means for outputting a weaving start signal for switching the clutch means from a disengaged state to a driving force transmitting state, and a braking return for outputting a braking return signal for bringing the braking means into a braking state. A signal output unit, wherein the control unit invalidates the weaving start signal until the brake return signal is output from the brake return signal output unit after the brake release signal is output from the brake release signal output unit. The braking control device for a loom according to claim 4, wherein the braking control device comprises: