JPH08296127A - Method of controlling operation of tray conveyer in spinning frame and operation controller therefor - Google Patents

Abstract

PURPOSE: To shorten the operation cycle of spinning frames by reducing or removing the time while the spinning frame stops, after the bobbins become full, even in the case that the full bobbins are not yet completely carried out. CONSTITUTION: A transfer unit TU is operated after doffing and a peg tray 6 is allowed to move at the spindle pitch in the arrow direction based on the request signal of the full bobbins to taken out the full bobbins and bring in the empty bobbins until the next doffing starts. Usually, all of the full bobbins are carried out from a conveyer 4, then a first sensor 15 is turned off and the tray transfer unit(TU) stops operation. In the case that the carrying-out of the full bobbins are delayed, for example, by some trouble, if the number of the bobbins brought in does not reach the prescribed number of the bobbins on the spindle rows on the time when the full bobbins stop in the machine frame 1, the tray transfer unit is stopped its operation, when the number of the counter reaches the prescribed one. A second sensor 16 is set in order to confirm that a prescribed number of empty bobbins are fed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spinning machine in which a peg tray on which a bobbin is mounted is orbitally moved in a certain direction along a machine base in order to carry out full bobbins and carry in empty bobbins. The present invention relates to an operation control method and an operation control device for a tray transfer device.

[0002]

2. Description of the Related Art In a spinning machine, a tray transfer device for automatically supplying an empty bobbin and unloading a full doffed bobbin in a state where the bobbin is inserted into a peg tray (Japanese Patent Laid-Open Publication No. 64-85332 and Japanese Patent Laid-Open Publication No. 5-85332). (Japanese Patent No. 156531).

As shown in FIG. 10, the spinning machine 41 is provided with a U-shaped tray transfer path 42 whose right and left sides (upper and lower sides in the figure) are connected at the gear end GE side along the machine frame. Has been. The tray transfer path 42 is an out-end OE
The winder 44 is connected via two conveyors 43a and 43b at both ends of the side.

The tray transfer path 42 produced by the spinning machine 41
The full bobbin F transferred to the upper peg tray is carried out to the winder 44 via the conveyor 43a. On the other hand, the empty bobbin E whose thread has been consumed by the winder 44 is the conveyor 4
It is carried into the tray transfer path 42 via 3b. To carry out the full bobbin F and carry in the empty bobbin E, the peg tray rows arranged in a row are driven on the tray transfer path 42 by driving a tray transfer device (not shown) based on the full bobbin request signal from the winder 44. Fig. 10 for each spindle pitch
It is carried out simultaneously by intermittently moving around in the direction of arrow.

The full bobbin F is carried out and the empty bobbin E is carried in after the spinning machine 41 is fully stopped, and then the spinning machine is equipped with a simultaneous pipe changer (Japanese Patent Laid-Open No. 2-61117 or the like) or a movable type. It is started after the tube changer (for example, Japanese Patent Laid-Open No. 1-321266) is completed. Then, during the next operation of the spinning machine, the full bobbins F fried on the tray transfer path 42 are sequentially carried out to the winder 44, and the empty bobbin E for the next fried food is carried in from the winder 44. It

It is desirable that the replacement of the peg tray for inserting the full bobbin F and the empty bobbin E is completed by the time of the next full pipe. Usually, the peg tray is replaced with a margin before the spinning machine reaches full pipe. Are set to complete.

By the way, if the cotton wool from the spinning machine 41 is scattered around the out-end OE and the full bobbin F is left on the side of the out-end OE on the tray transfer path 42, the full bobbin F is left. The cotton wool accumulates on the yarn and adversely affects the quality of the yarn. Therefore, the operation of the tray transfer device is stopped after all the full bobbins F have been carried out. Then, when the doffing is performed, after confirming that the operation of the tray transfer device is stopped, the doffing by the simultaneous transfer device or the like is started.

[0008]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
4 if there is a problem with the tray transfer device
When 1 is fully stopped, the full bobbin F may not be completely discharged and the tray transfer device may continue to operate. In this case, the spinning machine stand is left in a state in which the pipe is fully stopped until it is confirmed that the tray transfer device is stopped, that is, until the full bobbin F is completely unloaded and the operation of the tray transfer device is stopped. become.

For example, if the empty bobbin for the spindle row is not supplied when the bobbin is full, the full bobbin is ready to start doffing from the time when the empty bobbin E for the spindle row is supplied. The machine base is left in a state of full stop until the delivery of F is completed. Usually, the number of full bobbins F arranged on the side of the out-end OE is about 30 to 40, and it takes about 10 to 15 minutes until they are all carried out, although it depends on the yarn count. Therefore, even if the doffing is possible, about 10 to 1
For about 5 minutes, the machine stand is left in a state in which the pipe is fully stopped, and the operating cycle of the spinning frame 41 is lengthened by the amount of the standing time, resulting in a significant decrease in the productivity of the spinning frame 41. there were.

The present invention has been made in view of the above problems, and an object thereof is to carry out the delivery of a full bobbin by the time of full filling due to a trouble of a winder or a tray transfer device. To provide a bobbin transfer method and a bobbin transfer device for a spinning machine, which can shorten or eliminate the leaving time after a full stop of the spinning machine to shorten the operating cycle of the spinning machine and improve the productivity of the spinning machine. is there.

[0011]

In order to solve the above problems, according to the invention of claim 1, the full bobbin inserted into the peg tray is carried out and emptied by moving the peg tray along the spinning machine base. In a spinning machine equipped with a tray transfer device for loading a bobbin, the operation of the tray transfer device is stopped after the completion of unloading a full bobbin, and the empty bobbin for the spindle row is not supplied before the spinning machine is stopped. Then, even before the completion of unloading the full bobbin, the tray transfer device is stopped halfway at the time when the number of empty bobbins loaded reaches a predetermined number at which empty bobbins for at least the spindle row can be supplied, and the doffing work is performed. I got to start.

According to the second aspect of the present invention, the full bobbin is operated after the doffing of the spinning machine, and the full bobbin after the doffing and the empty bobbin for the doffing preparation along the tray transfer path along the spinning machine stand. In a spinning machine equipped with a tray transfer device for transferring the peg tray in which the full bobbin is inserted in one direction, a detection means for detecting that all the full bobbins have been carried out, and at least a spindle where the full bobbin has not been carried out. Judgment means for judging whether or not a predetermined number of empty bobbins that can be supplied with empty bobbins for a row have been supplied, and when it has been detected by the detection means that the full bobbin has been carried out,
When the operation of the tray transfer device is stopped and the full spinning stop signal indicating that the spinning machine is fully stopped is input during the operation of the tray transfer device, the predetermined number of empty bobbins are not supplied by the determination means. When it is determined that the predetermined number of empty bobbins have been supplied by the determination means, the tray transfer device control means for stopping the operation of the tray transfer device on the way for doffing. It was

In the invention of claim 3, when the spinning machine is fully stopped, the tray transfer device control means determines that the predetermined number of empty bobbins have been supplied by the determination means. Immediately, the operation of the tray transfer device was stopped.

[0014]

According to the first aspect of the present invention, under normal conditions, all the full bobbins have been carried out by the time the full spinning of the spinning machine is stopped, and the tray transfer device is stopped. When the delivery of full bobbins is delayed due to a trouble or the like, and the spinning machine is fully stopped while the tray transfer device is operating, at least when the number of empty bobbins loaded reaches the predetermined number at which empty bobbins for the spindle row can be supplied. Then, the tray transfer device is stopped halfway and the doffing work is started. In other words, when the empty bobbin for the spindle row is not supplied when the spinning machine is full,
Without waiting until all the full bobbins are carried out,
At a predetermined time when the doffing enabled state is reached, the operation of the tray transfer device is stopped and the doffing is started. Therefore, normally, all the full bobbins are carried out by the time the machine is fully stopped,
Since there is no waiting for a full tube with a full bobbin left on the side of the machine base, the fly bobbin does not accumulate on the full bobbin. When the pipe is fully stopped, the time required for the machine to stop doffing is shortened.

According to the second aspect of the present invention, the tray transfer device is operated after the doffing, and during the next operation of the spinning machine, the full bobbin and the empty bobbin inserted into the peg tray after the doffing are transferred to the tray. The full bobbin is carried out and the empty bobbin is carried in by being transferred in one direction along the road. Normally, the tray transfer device finishes carrying out all the full bobbins by the time the spinning machine is fully stopped, and the operation is stopped. On the other hand, when the spinning machine is fully stopped, the determination means determines that all the full bobbins have not been carried out, and that at least a predetermined number of empty bobbins that can supply empty spindles for the spindle row have not been supplied. Then, when it is determined by the determination means that the predetermined number of empty bobbins have been supplied, the tray transfer device control means suspends the operation of the tray transfer device for doffing.

According to the third aspect of the present invention, the tray transfer device control means controls the tray transfer device when the determination means determines that the predetermined number of empty bobbins have been supplied when the spinning machine is fully stopped. The operation of the tray transfer device is immediately stopped.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 5, the spinning machine 1 has an empty bobbin carry-in conveyor 3 and a full bobbin carry-out conveyor 4 on the out-end OE side of a tray transfer path 2 extending along the outer periphery of the machine frame. Is connected to the winder 5.

As shown in FIG. 1, the tray transfer path 2 has a U-shape in which the left and right sides (both upper and lower sides in FIG. 1) are connected to the spinning machine 1 along the outer periphery of the machine base at the gear end GE side. I am doing it. The tray transfer path 2 is a guide path for guiding the peg trays 6 arranged in a line, and the tray transfer paths 2a and 2b extending in the machine longitudinal direction on the left and right sides of the machine base are respectively extended along the extending direction. Transfer device T1,
T2 is provided. Peg tray transfer device T1, T
2 has basically the same structure as that disclosed in Japanese Patent Laid-Open No. 64-85332, and a pair of transfer rails (not shown) extended reciprocally along the tray transfer paths 2a and 2b. Is equipped with.

The peg trays 6 arranged in a line in the tray transfer paths 2a and 2b are placed on a pair of transfer rails. Engagement protrusions are formed on the upper portion of the transfer rail at the spindle pitch in a saw-tooth shape, and when the transfer rail moves forward, the engagement protrusions engage with the peg tray 6 to move integrally with the transfer rail. The relative movement of the peg tray 6 with respect to the transfer rail is allowed when the transfer rail is returned. That is, the tray transfer path 2a,
The peg trays 6 arranged in one row in 2b are moved intermittently by the spindle pitch in the direction of the arrow shown in FIG. 1 by repeating the reciprocating movement of each transfer rail. A peg (not shown) for inserting the bobbins F and E is projectingly provided on the upper part of the peg tray 6.

The transfer rails constituting the peg tray transfer devices T1 and T2 are provided with piston rods 7a and 8a of a pair of air cylinders 7 and 8 arranged near the out end OE.
Are operatively connected to each. The transfer rail is adapted to reciprocate synchronously with a stroke slightly larger than the spindle pitch by the expansion and contraction of the air cylinders 7 and 8.

At the corner of the tray transfer path 2 on the gear end GE side, a feeding device 9 is arranged. The feeding device 9 includes a feeding lever 11 that is rotationally driven by an air cylinder 10.
And a regulating lever 13 that is rotationally driven by an air cylinder 12 arranged on the feed lever 11. When the air cylinders 10 and 12 are driven, the peg tray 6 located at the corner on the tray transfer path 2 is pushed by the feed lever 11 and is sent to the connection path 2c side, and the subsequent peg tray 6 is moved. The position is regulated by the regulation lever 13 so as not to hinder the feeding work.

An empty bobbin loading confirmation sensor 14 capable of detecting the bobbin E inserted into the peg tray 6 is disposed near the loading entrance of the tray transfer path 2a corresponding to the conveyor 3. Further, the tray transfer path 2b corresponding to the conveyor 4
In the vicinity of the carry-out port, a first sensor 15 is provided which can detect the full bobbin F inserted in the peg tray 6 and set the detection area so that the empty bobbin E cannot be detected. Further, the full bobbin F inserted in the peg tray 6 can be detected and the empty bobbin E cannot be detected in the vicinity of the boundary between the spindle row in which the spindle S (shown in FIG. 2) is arranged and the out end OE. The second sensor 16 having the detection area set therein is provided in the. Second sensor 1
When the empty bobbin E corresponding to the spindle row is carried into the tray transfer path 2, 6 is arranged at a position where the empty bobbin E at the front of the empty bobbin E is a detection target of the second sensor 16. That is,
When the required minimum number of empty bobbins E for doffing are carried in, the foremost empty bobbin E becomes the detection target of the second sensor 16.

The respective air cylinders 7, 8, 10, 12 are driven and controlled by a controller C provided at the out end OE via electromagnetic switching valves 17a-17c (shown in FIG. 3). The control device C, based on the bobbin request signal from the winder 5, extends the air cylinders 7 and 8 and feeds the device 9.
One reciprocating motion and the contracting motion of the air cylinders 7 and 8 are regarded as one cycle operation to continuously operate the air cylinders 7, 8, 10 and 12. The peg tray 6 is moved in the direction of the arrow in FIG. 1 by the spindle pitch by one cycle operation of each air cylinder 7, 8, 10, 12. In this embodiment, the peg tray transfer device T1,
A tray transfer device TU is configured by T2 and the feeding device 9.

As shown in FIG. 2, the spinning machine 1 is equipped with, for example, a simultaneous pipe changing device 18 disclosed in Japanese Patent Application Laid-Open No. 2-61117. The doffing bar 19 equipped with a bobbin gripping device (not shown) is moved up and down by a pantograph mechanism 20, and the pantograph mechanism 20 is opened and closed (separated / approached) within a predetermined range relative to the spinning machine base.
As described above, the drive shaft 21 is rotatable. The pantograph mechanism 20 is lifted and lowered by operating the power cylinder 22 arranged at the gear end GE to reciprocate the drive shaft 19 in the axial direction. A pair of power cylinders 22 provided on both left and right sides of the machine base (however, only one side is shown in FIG. 2) is driven by a motor 23 arranged at an intermediate position between them via a belt transmission mechanism (not shown). It is like this. Also,
In front of the spindle rail 24 on which the spindles S are arranged, intermediate pegs 26 are formed on the support bar 25 so as to project at the same pitch as the spindle pitch.

The gear end GE is provided with a spindle motor 27 for driving the spindle S, a lifting motor 29 for vertically moving the ring rail 28, and a draft motor 30 for driving the front bottom roller (all shown in FIG. 3). ing.

Next, the electrical construction of the spinning machine 1 and the tray transfer device TU will be described. As shown in FIG. 3, the control device C includes a microcomputer MC, and the microcomputer MC has a central processing unit (hereinafter referred to as CPU) 31, a program memory (ROM) 32, a working memory (RAM) 33, a counter circuit. It is provided with (hereinafter simply referred to as a counter) 34, an input interface 35, and an output interface 36. The input interface 35 includes a sensor 14 for confirming loading of an empty bobbin and a first sensor 1.
5, the second sensor 16 and the rotary encoder 29a provided in the lifting motor 29 are connected.
The output interface 36 includes excitation / demagnetization circuits 37, 38, 3
9, the electromagnetic switching valves 17a to 17c are connected, and the spindle motor 27, the lifting motor 29, the draft motor 30, and the motor 23 are connected via the motor drive circuits 40, 41, 42, and 43, respectively.

Program data for storing the bobbin transport control shown in the flowchart of FIG. 4 is stored in the program memory 32, and the CPU 31 operates based on the flowchart of FIG. Further, each time the detection signal for detecting the bobbin E is input by the empty bobbin loading confirmation sensor 14, the CPU 31 causes the counter 34 to count the number of loaded empty bobbins E. Further, the descent of the ring rail 27 when the full pipe is stopped is recognized by the count value of the counter 34 that counts the number of pulses of the detection signal from the rotary encoder 29a.

Next, the operation of the bobbin carrying device constructed as described above will be described. While the spinning machine base 1 is in operation, the full bobbin F that was produced last time and transferred from the spindle S to the tray transfer path 2 by the simultaneous transfer device 18 is carried out to the winder 5 by driving the tray transfer device TU. With
The empty bobbin E supplied from the winder 5 is the tray transfer path 2
It is loaded on top.

When the control device C receives the full bobbin request signal from the winder 5, it outputs an operation command signal to the excitation / demagnetization circuits 37 to 39 to continuously switch the electromagnetic switching valves 17a to 17c. Each air cylinder 7,8,1
0 and 12 are sequentially operated for one cycle. As a result, the entire peg tray row on the tray transfer path 2 is moved by the spindle pitch in the arrow direction (clockwise direction) of FIG.
Peg tray 6 with an empty bobbin E inserted at the carry-in entrance
1 is pushed from the conveyor 3 onto the tray transfer path 2a and is carried in, and one peg tray 6 with the full bobbin F inserted on the tray transfer path 2b is pushed out to the conveyor 4 from the carry-out exit. .

Thereafter, each time the full bobbin request signal is input,
This cycle operation is repeated, and the peg tray 6 on the tray transfer path 2 is intermittently conveyed by the spindle pitch in the direction of the arrow in FIG. In this way, the full bobbin F on the tray transfer path 2 is replaced with the empty bobbin E. At this time, every time the empty bobbin carry-in confirmation sensor 14 provided at the carry-in entrance of the tray transfer path 2a detects the bobbin E carried in from the conveyor 3, the count value of the counter 34 is incremented by one,
The counter 34 indicates the number of items loaded since the start after the last doffing.
Is counted.

During the operation of the tray transfer device TU, the CPU 31 performs the processing operation based on the flowchart of FIG. The operation control of the tray transfer device TU will be described below with reference to the flowchart of FIG.

After the doffing is completed, when the operation for the next production of the spinning machine 1 is started, the controller C starts driving the tray transfer device TU. As a result, the tray transfer path 2
The upper peg tray 6 is intermittently conveyed in the direction of the arrow in FIG. 1 by the spindle pitch.

In step S1, the CPU 31 determines whether or not a doffing preparation completion signal has been input. That is, the spinning machine 1 reaches the full pipe, the spindle motor 27, the lifting motor 29, and the draft motor 30 are decelerated and stopped, and the detection signal and the lappet (not shown) in which the ring rail 28 is lowered to the doffing position are inverted. It is determined whether the detection signal is input. If the doffing preparation completion signal is not input, the process proceeds to step S2, it is determined whether the tray transfer device (hereinafter, simply referred to as a transfer device) TU is in operation, and if it is in operation, the process further proceeds to step S3. Then, it is determined whether or not the counter 34 has counted the predetermined number N1 that can carry out all the full bobbins F. Here, if the counter 34 has not finished counting the predetermined number N1, the process returns to step S1. Then, in step S1, until the doffing preparation completion signal after full filling is input, or in step S3 until the count of the counter 34 reaches the predetermined number N1, steps S1 to
Repeat S3.

Normally, if there is no trouble in the winder 5 or the transfer unit TU, the count of the counter 34 is a predetermined number N before the pipe is filled.
When it reaches 1, and the count value K of the counter 34 reaches the predetermined number N1 in step S3, the process proceeds to step S4. Step S
At 4, it is determined whether the first sensor 15 provided at the carry-out port is off, and it is confirmed whether all the full bobbins F have been carried out. Full bobbin F due to transport error, etc.
Is still remaining and the first sensor 15 is not turned off, the process returns to step S1 and the operation of the transfer device TU is continued until the full bobbin F is completely carried out. When the first sensor 15 is turned off in step S4, the process proceeds to step S5, and a stop command signal for stopping the operation of the transfer device TU is output. As a result, as shown in FIG. 6, the transfer device TU is stopped in a state where all the full bobbins F have been carried out and the tray transfer path 2 is entirely empty bobbin E.

After that, when the spinning machine 1 reaches the full pipe and the doffing preparation completion signal is input in step S1, step S6.
Since the transfer device TU has already stopped, the process goes to step S11 to output the doffing start command signal. As a result, when the spinning machine 1 is fully stopped, the simultaneous pipe changing device 18 is driven and the doffing is immediately started. That is, the doffing bar 19 arranged near the upper part of the loaded empty bobbin E is moved up and down, and the empty bobbin E gripped by the bobbin gripping device is temporarily inserted into the intermediate peg 26 and The full bobbin F is taken out from the spindle S and inserted into the peg tray 6 on the tray transfer path 2, and the temporarily inserted empty bobbin E is inserted into the spindle S. When the doffing work is completed in this manner, the operation of the spinning machine 1 is started again. Therefore, the transfer device TU with the full bobbin F left on the side of the out end OE before the pipe is full.
Is not stopped, the cotton from the spinning machine 1 does not adhere to the full bobbin F.

Next, regarding the operation control of the transfer device TU by the CPU 31 when a trouble occurs in the winder 5 or the transfer device TU and the spinning machine 1 reaches the full pipe before all the full bobbins F are carried out. explain.

First, as shown in FIG. 7, a case where the empty bobbin E for the spindle row is filled up before being supplied will be described. At the stage when the empty bobbin E has been loaded to the state of FIG. 7, the count of the counter 34 has not reached the predetermined value N1, so the operation of the transfer device TU is continued. In this state, the spinning machine 1 is fully stopped, and when the doffing preparation completion signal is input in step S1, the process proceeds to step S6, and since the transfer device TU is in operation, the process further proceeds to step S7.

In step S7, the count value K of the counter 34
Is a predetermined number N into which empty bobbins E for the spindle train can be loaded.
It is determined whether or not 2 has been reached (K ≧ N2). At this time, in the state of FIG. 7, the count value K of the counter 34 has not reached the predetermined number N2 yet, so the process waits until the count value K of the counter 34 reaches the predetermined number N2, and the operation of the transfer device TU starts. Continued. After that, when the empty bobbin E is loaded to the state shown in FIG. 8 and the loading of the empty bobbin E for the spindle row is completed and the count value K of the counter 34 reaches the predetermined number N2, the process proceeds to step S8. In step S8, it is determined whether or not the second sensor 16 provided in the vicinity of the boundary between the spindle row before the carry-out port and the out end OE is off, and the empty bobbin E for the spindle row is carried in. Make sure that.

If the second sensor 16 is off in step S8, the process proceeds to step S9, and a stop command signal for stopping the operation of the transfer device TU is output. And the transfer device T
When the operation of U is stopped, a doffing start command signal is output in step S11. As a result, immediately after the empty bobbin E for the spindle is loaded, the operation of the transfer device TU is immediately stopped and the simultaneous transfer device 18 is driven,
The doffing of the full bobbin F and the mounting of the loaded empty bobbin E on the spindle S are performed. Therefore, as described in the prior art, the machine base will not be left in the state where the pipes are fully stopped until all the full bobbins are carried out.

Next, as shown in FIG. 9, although the empty bobbins E for the spindle row have been carried in, all the full bobbins F have been loaded.
A case where the spinning machine 1 is fully stopped in a state where the spinning machine 1 has not been carried out will be described. In this case, since the count value K of the counter 34 has not reached the predetermined number N1 (K <N1), the transfer device TU is in operation. In this state, the spinning machine 1 is fully stopped, and when the doffing preparation completion signal is input in step S1, the process proceeds to step S6, and since the transfer device TU is in operation, the process further proceeds to step S7.

In step S7, the count value K of the counter 34
Is a predetermined number N into which empty bobbins E for the spindle train can be loaded.
It is judged whether or not it has reached 2 (K ≧ N2), and at this time, the empty bobbin E for the spindle row has already been carried in,
The count value K of the counter 34 has reached a predetermined number N2 (K
≧ N2), the process proceeds to step S8. Then, in step S8, it is determined whether or not the second sensor 16 is off, and if it is confirmed that the second sensor 16 is off and the empty bobbin E for the spindle row has already been loaded, step S9 Then, a stop command signal for stopping the operation of the transfer device TU is output. Then, when the operation of the transfer device TU is stopped, a doffing start command signal is output in step S11. As a result, as soon as the spinning machine 1 is fully stopped, the operation of the transfer device TU is immediately stopped, the simultaneous transfer device 18 is driven, and the doffing of the full bobbin F and the spindle S of the loaded empty bobbin E are performed. Is attached to. Therefore, as described in the prior art, the machine base will not be left in the state where the pipes are fully stopped until all the full bobbins are carried out.

In step S8, the counter 3
If the second sensor 16 is not turned off even though the count value K of 4 has reached the predetermined number N2, an abnormality notification command is output in step S10, and the bobbin is operated by an informing device (not shown). The operator is notified that there is an abnormality in the feeding. At this time, the worker replaces the full bobbin F with the empty bobbin E and presses the button for starting doffing to start doffing manually.

As described above in detail, according to this embodiment, all the full bobbins F are carried out by the time the pipe is full, and all the full bobbins F are taken out by the trouble of the winder 5 or the transfer device TU. When the spinning machine 1 is fully stopped,
As soon as the empty bobbin E for the spindle row is loaded, or if the empty bobbin E for the spindle row has already been loaded, doffing is started immediately after the full pipe stop. Therefore, until the full bobbin as described in the prior art is carried out,
It is possible to avoid a situation in which the machine stand is left in a state where the pipes are fully stopped even though the doffing is possible. Then, without waiting this waiting time, if at least the empty bobbin E for the spindle row is supplied, the doffing is immediately started and the next operation of the spinning machine is started, so that the production cycle of the spinning machine becomes faster. The productivity of the spinning machine can be improved. In addition, in a normal state where there is no trouble, since the full bobbin F is completely unloaded and the machine stand is waited for, the machine bobbin F is left in the state where the full bobbin F is left near the carry-out exit on the side of the out end OE. It is possible to prevent the cotton dust from the machine base from adhering to the full bobbin F during the waiting time for the full bobbin.

Further, the counter 34 counts the number of loaded empty bobbins E, counts the supply of the empty bobbins E for the spindle row, and further counts the second sensor 16
This confirms that the empty bobbin E has been supplied to the final end of the spindle train. Therefore, due to this double confirmation, the counter 34 counts, but the bobbin is not actually transferred.
It is possible to prevent the situation where the doffing is started in the state of not being supplied.

The present invention is not limited to the above-mentioned embodiments, but may be modified as follows without departing from the spirit of the invention. (1) When the empty bobbin E for the spindle row has been supplied when the full pipe is stopped and the full bobbin F remains on the side of the out end OE, the doffing is started after all the full bobbins F have been carried out. It may be configured. According to this configuration, the doffing work is started immediately after the empty bobbin E for the spindle row is supplied when the empty bobbin E for the spindle row is not supplied when the full pipe is stopped. The production cycle can be shortened.

(2) In the above-mentioned embodiment, the second sensor 16 is eliminated and only the counter 34 is provided. When the counter 34 counts the number of counts to which the empty bobbin E for the spindle row can be supplied, the operation of the transfer unit TU is started. It may be configured to stop and output a doffing start command.

(3) The spinning machine and winder are not limited to 1: 1. A common winder may be connected to a plurality of spinning machines. (4) The peg tray 6 is made to circulate along the machine base 1 in an annular shape, and the full bobbin F is pulled out from the peg tray on the out-end side, and the spinning machine is equipped with a bobbin changing device that inserts an empty bobbin into the peg tray. The invention may be applied.

The invention grasped from the above embodiment and not described in the scope of the claims will be described below together with its effects. (A) In claim 2, the predetermined number is a number capable of supplying empty bobbins for the spindle row. According to this configuration, as soon as empty bobbins for the spindle row are supplied and doffing becomes possible, the tray transfer device is stopped midway and doffing is started immediately. The time can be minimized.

[0049]

As described above in detail, according to the first and second aspects of the present invention, since the full bobbin is normally discharged by the time the full pipe is stopped, the full bobbin can be discharged from the machine base. In addition to being able to suppress the accumulation of fly cotton, if the delivery of the full bobbin is delayed due to a trouble or the like and the spinning machine is fully stopped during the operation of the tray transfer device, without waiting for the completion of the delivery of the full bobbin, Since doffing is started when a predetermined number of empty bobbins can be loaded, the stop time until the start of doffing of the spinning machine after the full pipe stop is shortened and the spinning machine productivity is improved. be able to.

According to the third aspect of the present invention, when the spinning machine is fully stopped, the tray transfer is performed if empty bobbins for the spindle row have been supplied even before the completion of unloading the full bobbin. Since the operation of the device is immediately stopped and the doffing is started, the operation cycle of the spinning machine can be further shortened.

[Brief description of drawings]

FIG. 1 is a schematic partial plan view of a spinning machine equipped with a tray transfer device according to an embodiment.

FIG. 2 is a partial side view of the spinning machine.

FIG. 3 is a block diagram showing an electrical configuration of the spinning machine.

FIG. 4 is a flowchart showing a processing operation of a CPU.

FIG. 5 is a schematic side view of a spinning machine connected to a winder.

FIG. 6 is a schematic plan view showing the operation of the tray transfer device.

FIG. 7 is a schematic plan view of the same.

FIG. 8 is a schematic plan view of the same.

FIG. 9 is a schematic plan view of the same.

FIG. 10 is a schematic plan view of a conventional device.

[Explanation of symbols]

1 ... Spinner, 2 ... Tray transfer path, 6 ... Peg tray, 9
... Feeding device that constitutes the tray transfer device, 14 ... Sensor that constitutes the judging means, 15 ... First sensor as the detecting means, 16 ... Second sensor that constitutes the judging means, 17a ...
Reference numeral 17c ... Electromagnetic switching valve forming tray transfer device control means, 31 ... CPU forming judgment means and tray transfer device control means, 34 ... Counter forming judgment means, 37
... 39 ... Excitation / demagnetization circuit constituting tray transfer device control means, TU ... Tray transfer device, T1, T2 ... Peg tray transfer device constituting tray transfer device, F ... Full bobbin, E
… Empty bobbin, S… Spindle.

Claims (3)

[Claims] 1. In a spinning machine equipped with a tray transfer device for unloading a full bobbin inserted into the peg tray and for loading an empty bobbin by moving the peg tray along the spinning machine stand, complete unloading of the full bobbin is completed. After the operation of the tray transfer device is stopped later, if the empty bobbin for the spindle row is not supplied before the spinning machine is fully loaded, at least the empty bobbin for the spindle row is delivered even before the completion of unloading the full bobbin. The method for controlling the operation of the tray transfer device in the spinning machine, wherein the tray transfer device is stopped midway when the number of loaded empty bobbins reaches a predetermined number that can be supplied. 2. A peg tray in which a full bobbin after doffing and an empty bobbin for doffing preparation are inserted along a tray transfer path along a spinning machine stand while being operated after doffing of a spinning machine. In a spinning machine equipped with a tray transfer device that transfers in one direction, a detection unit that detects that all the full bobbins have been unloaded, and all the full bobbins have not been unloaded and an empty bobbin for at least the spindle row is supplied. And a determination means for determining whether or not a predetermined number of empty bobbins have been supplied, and when the detection means detects that all the full bobbins have been carried out, the operation of the tray transfer device is stopped, and When the full spinning stop signal is input to the spinning machine while the tray transfer device is operating, the determining means determines that the predetermined number of empty bobbins have not been supplied. And a tray transfer device control means for stopping the operation of the tray transfer device midway for doffing when it is determined by the determination means that the predetermined number of empty bobbins have been supplied. Device operation control device. 3. When the spinning machine is fully stopped and the judging means judges that the predetermined number of empty bobbins have been supplied, the tray transferring device control means immediately starts the tray transferring device operation. The operation control device of the tray transfer device in the spinning machine according to claim 2, which stops operation.