JPH0655973B2 - Working machine in spinning machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to move a work start signal after moving along the machine base end of a spinning machine group in which a large number of spinning machines are arranged side by side and contacting a spinning machine requiring work. The present invention relates to a working machine for a spinning machine which is confirmed and started to work.

2. Description of the Related Art Conventionally, it is well known that, for example, a wagon type doffing machine in a spinning machine is used as the working machine described above. This wagon-type doffing machine is equipped with doffing machine main bodies on both sides of the carrier that moves between spinning machine bases, and moves between the spinning machine bases along the machine stand ends to request doffing. It detects the full pipe forecast lamp of the spinning machine and stops at the machine end, and then confirms the full pipe lamp (work start signal) and performs doffing work.

Problems to be Solved by the Invention According to the conventional technique, the wagon-type doffing machine is stopped at the spinning machine end that is requested to doffing, and is waiting for the full lamp to be lit. For example, if the working machine cannot confirm that the full lamp is lit because the ring rail does not descend to a state where it can be doffed due to a broken full lamp, burned out lamp, or poor operation of the spinning machine, the machine end will be forever. There was a problem that the machine did not move even if there was a doffing request from another spinning machine, and the doffing efficiency of the working machine decreased.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a working machine with an alarm output means, and a working machine from the time of contact with a front spinning machine in a control circuit of this alarm output means. It is characterized in that a timer for setting the waiting time is incorporated, and the alarm output means is activated after the work machine is brought into contact with the work machine and the work start signal from the spinning machine is not detected within the waiting time.

Operation According to the above-mentioned configuration, the spinning machine is brought into contact with the spinning machine requiring work such as a doffing request, and from this time of the spinning machine during the predetermined waiting time preset by the timer. If no work start signal is detected from the above, an alarm is issued, the spinning machine or working machine that has come in contact with the stand has an abnormality, and the operator is informed that work cannot be done, but the cause of the abnormality can be immediately removed. be able to.

Example In FIG. 1 to FIG. 3, the doffing work of the spinning machine group G having a large number of spinning machines SF arranged in parallel will be described. The wagon-type doffing machine 1 includes a carrier AC and a doffing machine main body AD, and in the carrier AC, a traveling motor M for moving between machine stands of a spinning machine group G is provided. Drive the traveling wheels 2 and 2 so that the wagon-type doffing machine 1 moves along traveling machine rails 3 and 3 laid on the floor along the machine ends of the spinning machine group G. A position corresponding to the end of the second spinning machine SF2 from the left end (upper end in FIG. 3) of the moving passage of the wagon-type doffing machine 1 is a standby position ST of the wagon-type doffing machine 1. The doffing machine main body AD is mounted on both sides of the carrier AC, and after the carrier AC is stopped at the machine stand edge, the bridge rail 5 of the carrier AC is connected to the guide rail 4 arranged along the front surface of the spinning machine SF. Then, the doffing machine main body AD starts from the carrier AC and returns to the carrier AC. Limit switches LS2, LS3 for confirming that the doffing machine main body AD returns to the carrier AC and the bridge rail 5 is stored are arranged on both sides of the carrier AC. A control box 6 is provided on top of the carrier AC, and a shoe 10 adapted to slide on a trolley wire 9 suspended from a ceiling 7 by a bracket 8 is attached to the tip of an arm 11 of the control box 6. The electric power is supplied to the traveling motor M and its control circuit 18. Further, in this control box 6, photodetectors PH2 and PH3 are provided on the side of the spinning machine so as to be able to face a doffing machine inviting lamp La2 and a full pipe lamp La3 provided in the spinning machine SF, respectively. When the machine 1 is in the standby position ST, the spinning machine SF2
A movement start light receiver PH1 exemplified as a reception means is arranged to face a movement instruction lamp La1 exemplified as a movement start means provided at the end of the machine base. The control box 6 is equipped with two limit switches LSR and LSL on both sides in the traveling direction of the carrier AC, and a limit switch LS1 for confirming the standby position which is operated only when the vehicle is moving to the left. And each spinning machine group G
Corresponding to the spinning machine SF, the left end confirmation limit dog 14, the right end confirmation limit dog 15, and the bracket 8 at the standby position ST, which are fixed to the brackets 8 of the trolley wires 9 at the left and right group ends thereof, are fixed. It engages with the limit dog 16 for the standby position. Further, the carrier AC is provided with a buzzer BZ shown as an alarm output means, and is connected to the control circuit 18. Each spinning machine SF
1 to SFn are provided with limit switches LS5 and LS6 for confirming the completion of doffing, respectively, so that the left and right doffing machine main bodies AD engage with the limit switches LS5 and LS6 when the doffing is completed. I am doing it. Further, in the spinning machines SF1 to SFn, a pulsar 19 (shown in FIG. 4) connected to a front roller (not shown) of the spinning machine is shown.
A known auto-counter ACi as a work command output means for counting the signals from the monitor and monitoring the spinning amount of the spinning.
(I = 1 to n) are provided correspondingly, and the spinning amount capable of doffing and the spinning amount of a full pipe are set in these automatic counters AC1 to ACn. Next, each spinning machine SF1-S
The electric circuit 300 on the spinning machine SFi side including the automatic counter ACi, the limit switches LS5 and LS6, the call-in lamp La2 and the full lamp La3 in Fn, and the lighting circuit 350 of the moving lamp La1 will be described. The electric circuit 300 of the spinning machine SFi is a doffing completion confirmation circuit 3 including the limit switches LS5 and LS6.
01, a main motor start / stop circuit 302, a reset circuit 303 of the auto counter ACi, and a count circuit 30 of the auto counter ACi to which the contacts of the pulsar 19 are connected.
4. A lighting circuit 305 for the call-in lamp La2 and a lighting circuit 306 for the full lamp La3 are provided. Among the contacts of the auto counter ACi, the b-contact ACi of the circuit 302
-1 and the a-contact ACi-2 of the circuit 306 act when the count value of the auto-counter ACi reaches the full spinning amount, and the a-contact ACi-3 of the circuit 305 and an a-contact ACi described later. -4 is to act when the count value of the automatic counter ACi reaches the spinning amount that enables doffing. Automatic counter A for each spinning machine SF1 to SFn
Among the contacts of Ci (i = 1 to n), the a-contact ACi-4 is connected in parallel to each other as shown in FIG. 5 and is connected in series to the movement instruction lamp La1.

Next, the control circuit of the traveling motor M will be described. The control circuit 18 is composed of a motor circuit 500 of the traveling motor M and a drive circuit 400 thereof. Drive circuit 400
Includes a movement start circuit 401 including a movement start photodetector PH1, a left row circuit 402 including a left row relay ML, a right row circuit 403 including a right row relay MR, and an incoming photodetector PH2. Calling lamp confirmation circuit 404, left row switching circuit 405 including right end confirmation limit switch LSR, right row switching circuit 406 including left end confirmation limit switch LSL, carrier AC of doffing machine main body AD
The check circuit 407 includes a return confirmation circuit 407 for confirming the return to the standby state, a standby stop circuit 408, and a full lamp confirmation circuit 409. Further, the drive circuit 400 is connected to the control circuit 413 of the buzzer BZ. This control circuit 413
After the doffing machine 1 confirms that the call-in lamp La2 is turned on, the doffing machine 1 comes into contact with the spinning machine, and then a timer circuit 410 including a timer Ta for setting a predetermined holding time, a buzzer BZ.
And a reset circuit 412 of a buzzer BZ including a relay CR3. The waiting time is, for example, when the spinning machine side is not forced to be fully filled by connecting the bridge rails 5 ( In the case of waiting until the pipe is full), the time from the lighting of the inviting lamp La2 in a normal case to the lighting of the full pipe lamp La3 is set in advance, which is predetermined by the spinning condition. (Hereinafter, these circuits will be referred to as a circuit 401, a circuit 402 ...) Next, the operation will be described. The doffing machine 1 is waiting and stopped at the waiting position ST. Each spinning machine SF1 to SFn in the spinning machine group G
Have spun spinning yarns. Now, for example, when one spinning machine SFi in the spinning machine group G reaches a predetermined spinning amount for doffing, the a-contact ACi- of the automatic counter ACi-
3. ACi-4 is closed, and the circuit 305 calls for a lamp L
A2 is turned on and the circuit 350 turns on the movement start lamp La1. After the movement start light receiver PH1 of the circuit 401 confirms that the movement start lamp La1 is turned on, the a-contact PH1-1 of the circuit 402 is closed, and the limit switch LS1 is engaged with the limit dog 16 at the standby position ST. Since the relay CR1 is separated from the limit dog 16, the contact b of the relay CR1 is closed. Therefore, the left relay ML is excited, and the contact a of the travel motor M is self-held by the contact a of the travel motor M. Close
The doffing 1 is started from the standby position ST and leftward. When reaching the left end of the spinning machine group G, the limit switch LSL engages with the limit dog 14 to excite the relay CRL of the circuit 406, and the b contact CRL-1 of the paddle 402 opens and the a contact CRL of the circuit 403 opens. -2 is closed, left-handed relay ML
Instead, the right-handed relay MR is excited, and the doffing machine 1 starts right-handing. During this rightward movement, when the receiver PH2 of the circuit 404 confirms the call-in lamp La2 of the spinning machine SFi, its b-contact PH2-1 of the circuit 403 is opened, the right-handed relay MR is demagnetized, and the doffing machine 1 moves to the fine spinning machine 1. Stop at the machine end of the spinning machine SFi. At this time, a of the photodetector PH2 of the circuit 410
The contact PH2-2 is closed, and the timer Ta starts counting. Now, the time set in the timer Ta is set in advance according to spinning conditions. Assuming that the time from the lighting of the call-in lamp La2 to the lighting of the full tube lamp La3, if the full tube lamp La3 is turned on before the timer Ta times up, the photodetector PH3 confirms the lighting and determines that there is no abnormality. The doffing machine main body AD on both sides of the carrier AC is started along the front surface of the spinning machine SFi to doffing. When the doffing is completed, the doffing machine main body AC engages with the limit switches LS5 and LS6 at the out end of the spinning machine SFi, and the relays CR3R and CR3L of the circuit 301 are excited and self-held, and the relay CR4 of the circuit 302 is excited. Then, the contact CR4-2 is closed and the automatic counter ACi is reset by the circuit 303, and the contact CR4-1 is closed and the main motor relay CR5 is excited to cause the spinning machine SFi.
Is restarted and begins to wind. When the auto counter ACi is reset, the a contact A of the circuits 305, 306, 350
Ci-2 to ACi-4 are returned to the original state, and the call-in lamp La2, the full tube lamp La3, and the movement start lamp Lai of the spinning machine SFi are turned off. When these lamps are extinguished, the doffing machine main body AD returns to the carrier AC, and the bridge rail 5 is housed in the carrier AC, the limit switches LS2, 3 are closed, the timer T of the circuit 407 operates, and The relay CR2 is excited, the a-contact CR2-1 of the circuit 406 is closed, the relay CRL is excited, and the circuit 4
The a contact CRL-2 of 03 is closed, the right-hand relay MR is excited, and the doffing machine 1 starts right-handing again. The timer T times up in a predetermined short time, the contact T-1 opens, and the relay CR2 is demagnetized. In this way, when the rightward movement is continued and reaches the right end of the spinning machine group G, the limit switch LSR engages with the limit dog 15, the relay CRR of the circuit 405 is excited, the a-contact CRR-1 is closed, and the leftward relay M.
L is excited, the b-contact CRR-2 is opened, the right relay MR is demagnetized, and the doffing machine 1 starts left traveling. Immediately before the standby position ST, the limit switch LS1 engages with the limit switch 16 to excite the relay CR1 of the circuit 408, open the b contact of the circuit 402, demagnetize the left-hand relay ML, and stop the traveling motor M. The LS1 is disengaged from the limit dog 16, and then the spinning machine group G
The doffing machine 1 stops at the standby position ST until a movement command signal is output from any of the spinning machines.

Next, after confirming the call-in lamp La2, when the lighting of the full lamp La3 is not confirmed within the set time,
It is determined that the timer Ta has timed out and there is an abnormality (such as a failure of the full lamp La3 or an abnormality of the photodetector PH3), and the doffing work cannot be performed, and the timer contact Ta-1 of the circuit 411 is closed, and the buzzer BZ Sounds to notify the operator of the abnormality. When the operator presses the buzzer reset button PB2 of the circuit 412, the relay CR3 is held by itself,
(At this time, the photodetector PH2 confirms that the call-in lamp La2 is turned on and its a-contact PH2-2 is closed),
The b contact CR3-4 of the circuit 411 is opened, the buzzer BZ is reset, and the timer Ta is also reset. Then, the a contact CR3- of the relay CR3 of the circuits 403 and 406
1, CR3-2 are closed, and the relay CRL of the circuit 406 is closed.
Is excited, the contact a CRL-2 of the circuit 403 is closed to excite the right-handing relay MR, and the doffing machine 1 is moved to the right toward the next spinning machine.

In the present embodiment, the waiting time of the timer Ta is changed from the lighting of the invocation lamp La2 during normal spinning to the full lamp La.
3 was set to a pre-calculated time until lighting, but for example, the doffing machine 1 came in contact with the bridge rail to the guide rail 4 of the spinning machine, and the spinning machine was forcibly filled with a limit switch (not shown). When the full lamp La3 is forcibly turned on, the waiting time set in the timer Ta is until the spinning machine is stopped by the signal of the limit switch (not shown) after the doffing machine is placed on the spinning machine. The required time may be set, and this is also calculated in advance according to the spinning conditions of the spinning machine.

Effect of the Invention As described above, the present invention outputs an alarm if a work start command cannot be detected during a predetermined waiting time from when the work machine contacts the spinning machine that is issuing the work request. As a result, the work machine came in contact with the spinning machine, but when the work machine could not confirm that the work start lamp was lit, for example, the work start lamp was burned out or the spinning machine was not ready to work, an alarm was sent to the worker to inform the worker. It is possible to remove the abnormality of the spinning machine or the working machine to bring it to a normal state, and the working machine stops forever at the edge of the spinning machine due to the above-mentioned abnormality as in the past, and It is possible to prevent the work efficiency from decreasing.

[Brief description of drawings]

1 is a front view of a doffing machine, FIG. 2 is a side view of FIG. 1,
Fig. 3 is a layout of spinning machines and doffing machines, Fig. 4 is an electric circuit of the spinning machine, Fig. 5 is a lighting circuit of a movement instruction lamp, and Fig. 6 is a circuit.
FIG. 7 shows a motor circuit of the traveling motor, and FIG. 7 shows a drive circuit of the traveling motor. 1 ... Wagon type doffing machine (working machine), 400 ... Drive circuit,
413 ... Control circuit, SF1-SFn ... Spinning machine, G ... Spinning machine group, ACi ... Auto counter (work command output means),
La1 ... Movement start lamp (movement start command output means), P
H1 ... Movement start light receiver (reception means), M ... Traveling motor, ST ... Standby position, BZ ... Buzzer

Claims (1)

[Claims] Claims: 1. A machine start-up signal from this machine is detected after moving between machine stands along the machine base end of a group of machines in which a large number of machine machines are arranged in parallel and abutting on a machine requiring work. In a work machine of a spinning machine that is started by means of a timer, the work machine is provided with an alarm output means, and in the control circuit of this alarm output means, a timer for setting the waiting time of the work machine from the time of contact with the spinning machine. And a structure in which the alarm output means is activated when the work start signal of the spinning machine is not detected within the waiting time after the work machine is mounted.