JPH0818756B2 - Automatic winder - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic winder capable of displaying an indication of a defective weight, an indication of a defective portion, a maintenance method, etc. by analyzing a yarn splicing error.

[0002]

2. Description of the Related Art A yarn feeding bobbin produced by a spinning machine such as a ring spinning machine is supplied to an automatic winder in the next step and is rewound to remove a yarn defect in a yarn and to a predetermined amount of a predetermined yarn amount. Rewound in shape package. Usually several to several tens of yarn supplying bobbins are used to obtain one package.

As shown in FIG. 6, the automatic winder is
A large number of winding units U are arranged in a row on the machine base, and a main body controller MMC and a yarn feeding bobbin automatic feeding device CBF are arranged at both ends of the winding unit group. Each winding unit U is capable of single spindle operation, and main body controller MMC
Thus, each winding unit U or a plurality of winding units U are managed as a group.

Next, one winding unit U is shown in FIG.
The equipment arrangement of will be described. The yarn Y unwound from the yarn supplying bobbin 1 passes through a balloon breaker 2 and a tensor 3, and a traverse drum 5 while detecting a yarn defect by a slab catcher 4 which is an optical or electrostatic capacitance type yarn defect detecting head. Is wound into a rotating package 6.

During winding, fluctuations in the thickness of the yarn passing through the slab catcher 4 are signal-processed by the control section 4a and input to the unit controller 8 as an electric signal 7.
When it is determined that the yarn defect has passed when the allowable range is exceeded by comparison with the reference value, the control unit 4a immediately outputs a command signal 10 to the cutter 9, and the cutter 9 is operated to perform yarn cutting. . When the yarn is cut, the yarn traveling signal 11 is turned off from the control unit 4a of the slab catcher 4, the yarn break is detected, and the controller 8 issues a stop command to the drum drive motor 12 to stop the rotation of the traverse drum 5. Then, the command signal 13a is output from the controller 8 to start the yarn splicing operation by the yarn splicing device 13, and the yarn splicing is performed. Also, when a yarn breakage occurs in the tenser 3 or the like, the yarn joining is similarly performed.

In addition to the yarn supplying bobbin 1 at the winding position A, the winding unit U has two spare yarn supplying bobbins 1 at standby positions B1 and B2. When the yarn supplying bobbin 1 at the winding position A becomes empty, the yarn traveling signal 11 of the control unit 4a of the slab catcher 4 is turned off and yarn joining is performed. At this time,
No bobbin thread is detected by the mechanical or optical yarn filler 23, and the bobbin change is performed by the signal 24 that there is no bobbin thread. The empty bobbin 1'at the winding position A is discharged, and the yarn supplying bobbin 1 at the standby position B1 is carried in instead.
Then, the yarn end Y1 is blown up as a lower yarn, and yarn joining is performed.

The outline procedure of the above-mentioned yarn splicing is as follows. The suction mouth 15 sucking the yarn end pivots around the shaft 15a to the rolling contact portion between the traverse drum 5 and the package 6, and at the same time, the traverse drum 5 is reversed by a reverse roller (not shown) to feed the upper yarn. Further, the relay pipe 16 sucking the yarn end turns around the shaft 16a up to the yarn filler 23, and the lower yarn is exposed. Then, while the suction mouth 15 and the relay pipe 16 are in the protruding state, they are sequentially turned to the position indicated by the solid line, and the upper yarn and the lower yarn are put into the slab catcher 4 and the yarn joining device 13. After the yarn splicing in the yarn splicing device 13 is completed, the traverse drum 5 is further rotated in the reverse direction by a reverse roller (not shown) to drop the joint to the slab catcher 4 so that it is possible to check the presence or absence of yarn defects in the joint. There is.

Next, the drive motor 12 for the traverse drum 5
Is provided in each winding unit U, and the rotation speed of the motor 12 is controlled by an inverter 18 provided in each winding unit U. That is, the controller 8 provided in each winding unit U controls the drive motor 12 to the most suitable rotation speed based on the winding condition of each winding unit, and the inverter 1 is controlled by the control signal 20 issued from the controller 8.
The rotation speed of the drive motor 12 is set via 8. The control signal 20a is a start / stop signal for the drive motor 12. Reference numeral 14 is a pulse generator for detecting the rotation of the traverse drum 5, which is composed of a magnet and a proximity sensor fixed to a part of the end face of the drum, for example, and a constant length mechanism for calculating the length of the wound yarn from the number of rotations of the drum. Applied to.

Further, management of each winding unit U or a plurality of winding units U of the automatic winder is performed via signal lines 22 and 22a extending from the main body controller MMC. The control common to each winding unit U includes, for example, setting of a basic yarn speed according to the type of yarn to be processed, or a winding speed increasing / decreasing signal for a ribbon breaker.

The productivity of such a winding unit U largely depends on the occurrence rate of yarn splicing errors. Therefore, the occurrence ratio of this yarn splicing error is managed, and the winding unit with a high occurrence ratio is inspected. The yarn joining error rate MIS% is defined by [(yarn joining trial number-yarn joining success rate) / yarn joining trial number] × 100%. If the yarn splicing fails three times in a row, the winding unit stops and the maintenance button is called by the yellow button. Even if the yellow button rate YLW% for this yellow button = [yellow button / number of successful yarn joining] × 100%, the occurrence ratio of yarn joining errors is managed. The yarn splicing error rate MIS% and the yellow button rate YLW% are managed by the main body controller MMC, and the results can be known by the printer 26 or the like on the operation panel 25. Therefore, the main body controller MM
The microcomputer 27 is built in C.

[0011]

However, in the above-described conventional automatic winder, in the management of the yarn splicing error by the yarn splicing error rate MIS% and the yellow button rate YLW, it is possible to know which winding unit has a large yarn splicing error. However, which part of the winding unit the yarn splicing error occurs depends on the skilled inspection of maintenance personnel. Therefore, there has been a problem that it takes time and experience to deal with a yarn splicing error.

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide an automatic winder capable of outputting a defective portion causing a piecing mistake, maintenance information, and the like. Is in the place of providing.

[0013]

The automatic winder of the present invention for achieving the above object has a yarn splicing device and a slab catcher for detecting a yarn defect, and based on the output of the slab catcher at the time of yarn splicing. It is provided with a classifying unit for classifying the yarn splicing errors by factor and a storage unit for storing the occurrence data of the yarn splicing errors by factor. Further, in addition to the output of the slab catcher at the time of yarn splicing, a classifying means for further classifying the yarn splicing error into factors based on the output of the yarn filler for detecting the lower thread and the output of the rotation sensor for the package driving drum or the package. Is preferred. Then, it is preferable that the automatic winder has a display means for comparing the frequency in the occurrence data for each cause of the yarn splicing error in the storage means with a predetermined value and displaying the specific factor exceeding the predetermined value.

[0014]

Operation: The slab catcher at the time of yarn splicing outputs information about the upper yarn, the seam, and the lower yarn in the yarn splicing.
It is important to note that this information can be used to distinguish whether a yarn splicing error is due to the upper yarn, the yarn splicing device, the lower yarn, or the like. For example, when the upper thread is not detected during the splicing, it means that the upper thread has failed to come out. Also,
When the output of the rotation sensor for the lower yarn detecting yarn filler, the package driving drum, or the package is added, the cause of the yarn splicing error can be further classified as due to the yarn feeding bobbin or the traverse drum. Then, the frequency of the occurrence data of each factor of the yarn splicing error is calculated, extracted by comparing with the predetermined value, and the cause corresponding to the factor is estimated.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a device layout view of the automatic winder of the present invention.

1 is different from the automatic winder of FIG. 8 in that the unit controller 8 has a microcomputer 28 in addition to the microcomputer 27 of the main body controller MMC.
The classification means 3 is added to the microcomputer 28 of the unit controller 28.
0 is provided, and the storage means 31 is provided in the microcomputer 27 of the main body controller MMC. The parts in FIG. 1 that operate in the same manner as in FIG. 6 are assigned the same reference numerals and explanations thereof are omitted.

The classification means 30 is a unit controller 8
It is incorporated in the PROM (process read only memory) for the microcomputer 28 as a program. Then, the outputs of the slab catcher 4, the yarn feeler 23, and the rotation sensor 14 are input to the microcomputer, and the splicing mistakes are MRR% (drum reverse rotation defective rate), MUP% (upper thread leading-out error rate), and MLC% (upper thread lay). Incut rate), ML
Classified into 8 items: 2% (bobbin thread twin rate), MLW% (bobbin thread misfeed rate), MSL% (splicer miss rate), MSM% (splicer monitor cut rate), MSU% (drum startup cut rate) To do.

The data regarding each classified item is temporarily stored in the RAM (random access memory) of the microcomputer 28, and is temporarily stored in the storage means 31 of the microcomputer 27 of the main body controller MMC via the communication line 22 on a regular basis. . Normally, the RAM of the microcomputer 27 is used as the storage means 31, but in the present embodiment, the operation panel 2 is used.
The memory card 33 inserted into the insertion slot 32 of No. 5 is used as the storage means 31. The memory card 33 includes setting conditions for all spindles of the automatic winder, past and present data and database of the automatic winder (method for determining a defective spindle, replacement part numbers when the spindle is defective, a manual, a contact list,
(Automatic operation procedure) etc. are stored. By storing these data in the memory card, for example, when the method for determining the weight failure has not been determined and is to be changed, it can be dealt with by simply replacing it with a memory card adjusted in advance by a personal computer.

On the basis of the yarn splicing error data stored in the memory card 32, an item having a problem larger than a predetermined value is calculated, and the result is displayed on the liquid crystal display screen 34 of the operation panel 25. The keyboard 35 is used for the display operation.
It is performed by

Next, the procedure of the classification means in the microcomputer 28 of the unit controller will be described with reference to the flow charts of FIGS. The part surrounded by the one-dot chain line shows the flow in the microcomputer 27 of the main body controller. In FIG. 2, the flow starts with the yarn joining in step # 1. In step # 2, the number of yarn splicing is counted, and the number of yarn splicing trials is integrated. In step # 3, the pulse generator 14 detects the reverse rotation of the traverse drum 5 which is the package driving drum in FIG. 1 (the rotation of the package itself may be detected). In step # 4, it is checked whether the number of pulses from the pulse generator 14 is less than a predetermined number within a fixed time. If it is less than the predetermined value (YES), it is a yarn splicing error due to the fact that the traverse drum 5 could not be rotated in the reverse direction, and is classified as MRR% (drum reverse rotation failure rate) data. In this case, it is assumed that the reverse rotation mechanism itself is defective. Then, this data is sent to the microcomputer 28 of the main body controller via the communication line 22.

Then, in step # 5, the upper thread carried by the suction mouth 15 of FIG. 1 is detected by the electric signal 7 of the slab catcher 4. If the electric signal 7 is not detected at all in step # 6 (YES), it is a yarn splicing error due to the fact that the yarn end of the package 6 could not be grasped.
It is classified as the data of MUP% (upper thread leading-out error rate). In this case, it is assumed that the traverse drum reverse rotation failure, suction mouth suction failure, package rotation failure, or the like is the cause. This data is also sent to the microcomputer 28 of the main body controller via the communication line 22.

Further, in step # 7, it is checked whether the electric signal 7 in FIG. 1 is larger than a predetermined value. If it is larger than the specified value (YES), it means that the yarn end of the package has been pulled out twice, and the yarn splicing error has occurred.
(Upper thread ray cut error rate) is classified as data. In this case, inertial rotation of package 6, package 6
It is assumed that the cause is the surface defect of the. This data is also sent to the microcomputer 28 of the main body controller via the communication line 22.

Then, in step # 8, the lower thread carried by the relay pipe 16 of FIG. 1 is detected by the electric signal 7 of the slab catcher 4. In step # 9, it is checked whether the electric signal 7 is larger than a predetermined value. If it is larger than a predetermined value (Y
ES), a yarn splicing error due to the fact that the yarn end of the yarn supplying bobbin is pulled out twice, and is classified as data of ML2% (lower thread doublet miss ratio). In this case, it is assumed that yarn breakage in the yarn filler 23, defective yarn supply bobbin, or the like is the cause. This data is also sent to the microcomputer 28 of the main body controller via the communication line 22.

Then, in step # 10, the lower thread carried by the relay pipe 16 of FIG.
Detect with. In step # 11, the presence / absence of the signal 24 is checked. If the signal 24 is not present (YES), it is a yarn splicing error due to the fact that the bobbin yarn end could not be caught.
It is classified as data of W% (error rate of bobbin thread leading out).
In this case, it is assumed that the bobbin is not changed, the yarn feeding bobbin is not at the winding position, the blowing up error, the suction failure of the relay pipe, the yarn feeding bobbin defect, and the like. This data is also sent to the microcomputer 28 of the main body controller via the communication line 22.

Then, in step # 12, the traverse drum 5 of FIG. 1 again performs reverse rotation (re-reverse), and in step # 13, the seam is detected by the yarn traveling signal 11 of the slab catcher 4. In step # 14, the presence or absence of the signal 11 is checked. If there is no signal 11 (YES), it is a yarn splicing error mainly due to a defect of the yarn splicing device 13 (splicer), and the MSL% (splicer miss ratio) Classified as data. In this case, it is assumed that the untwisting failure, the twisting failure, the yarn introduction failure, and the like in the yarn joining device 13 are the causes. This data is also sent to the microcomputer 28 of the main body controller via the communication line 22.

Then, in step # 15, the traverse drum 5 of FIG. 1 is started. In step # 16, the rising of the yarn traveling signal 11 of the slab catcher 4 is checked. If the yarn traveling signal 11 does not rise (YES), it is determined that the seam is defective and a yarn splicing error occurs, and the yarn splicing is performed again. In addition, it is classified as data of MSM% (splicer monitor cut miss rate). In this case, it is assumed that the untwisting failure, the twisting failure, the yarn introduction failure, and the like in the yarn joining device 13 are the causes. This data is also sent via the communication line 22 to the microcomputer 28 of the main body controller.
Sent to

Then, winding is started in step # 17, and a yarn defect immediately after winding by the slab catcher 4 of FIG. 1 (for example, within a predetermined time within 1 second) is detected in step # 18. In step # 19, the presence or absence of a yarn defect immediately after winding is checked, and if there is a yarn defect (YES), it is classified as MSU% (splicer monitor cut miss rate) data. In this case, the operating setting conditions are not appropriate,
It is assumed that the defective yarn supply bobbin is the cause. This data is also sent via the communication line 22 to the microcomputer 2 of the main body controller.
Sent to 8.

After the above process, the yarn splicing is successful. Also, the thread defect / thread cutting in step # 21 and step # 2
Each time the bobbin is changed to 2, bobbin joining is performed by returning to step # 1 and a yarn joining error for each cause is recorded. And
The flow is ended by clearing step # 23. Step #
In step 2, the number of times of splicing is integrated, and step # 3 described below is performed.
It is used as a denominator for each error rate calculation in 1 to 38.

Next, the microcomputer 28 of the main body controller
The flow in FIG. Each miss ratio is calculated in steps # 31 to # 38 based on the data of the splicing errors for each factor sent from the new controller and step # 39.
Is recorded in a memory card as a storage means. Then, the recorded yarn splicing error rate for each factor is calculated in step # 40.
Is compared with a predetermined value. A standard deviation target for all the winding units of the machine base is used for this predetermined value, and the cause of the yarn splicing error that exceeds the target is picked up (step # 41). The specific cause and its countermeasure are estimated from the yarn splicing error factor (step # 42). And
In step # 43, the cause of the yarn splicing error and its countermeasure are displayed as a comment on the liquid crystal display screen 35 of FIG.

FIG. 4 is a diagram showing a storage example in the memory card 33 which is a storage means. The date is stored as yyyy-mm-dd like 1992-10-12, and the time when the data is generated is 12.00.
It is stored as hh.mm.ss like 00, and the weight number is also stored as xx like 01. MRR corresponding to this date, time and weight
% (Drum reversal failure rate), MUP% (upper thread lead-out error rate), MLC% (upper thread lay-in cut rate), ML2%
(Ratio of 2 bobbin threads), MLW% (Rate of bobbin thread leading error), M
Eight items of SL% (splicer miss rate), MSM% (splicer monitor cut rate), and MSU% (drum start-up cut rate) are recorded as a percentage value like xxx.x. In addition, MIS% (thread splice error rate) and YLW% (yellow button rate) from the past are also shown as% figures in xxx.x.
Is recorded as.

FIG. 5 is a diagram showing a display example of the liquid crystal display screen 35.
Is. In the function F43 of the memory card of FIG.
Displayed based on the stored data. Illustrated
"? 0 You can specify a specific weight by entering the number X in the
It MUP%, MLC for the designated weight (SP)
%, MLW%, MSL%, ML2%, MSM%, MRR
%, MSU%
A star% is a specific% figure that is a factor that exceeds the deviation target.
It is displayed like a ark. Furthermore, it is used conventionally
Specific% of yarn splice error rate MIS% and yellow button rate YLW%
Numbers are also displayed. Here, the conventional yarn splice error rate MIS
% Is the total of the above eight factors.

The skeleton of the winding unit is displayed on the right side of the screen 35. Next to this skeleton, a → mark lights up at the cause of the problem. In the illustrated example, the first weight is M
SL% (splicer miss rate) and MSM% (splicer monitor cut rate) are the numbers of the star mark and exceed the standard deviation target, and the → symbol is lit next to the yarn splicing device (splicer). Further, on the lower side of the screen 35, inspection item comments 1 and 2 assumed from the yarn splicing error factors MSL% and MSM% (for example, the untwisting portion inspection and the twisting portion inspection of the yarn splicing device) are also displayed.

In the above embodiment, the slab catcher and the yarn splicing device are arranged in this order from the bottom, but the present invention is also applicable to the yarn splicing device and the slab catcher arranged in order from the bottom.

[0034]

The automatic winder of the present invention comprises a classifying means for classifying the yarn splicing mistakes by factors based on the output of the slab catcher at the time of yarn splicing, and a storage means for storing the data generated by the factor of the yarn splicing mistakes. It is possible to distinguish whether the splicing error is due to the upper thread, the splicing device, or the lower thread, and the data can be processed by storing it. It is possible to output the maintenance information which has been judged as above, as a maintenance advice that is clear and understandable by anyone and is accurate.

[Brief description of drawings]

FIG. 1 is a device configuration diagram of an automatic winder of the present invention.

FIG. 2 is a first part of a flow chart showing the classification of yarn joining errors by factor.

FIG. 3 is a second part of a flowchart showing classification by cause of yarn joining error.

FIG. 4 is a diagram showing a storage example in a storage unit for a yarn joining error for each factor.

FIG. 5 is a diagram showing a display example of a yarn joining error for each factor in a liquid crystal display.

FIG. 6 is a perspective view of an automatic winder.

FIG. 7 is a device layout diagram of a conventional automatic winder.

[Explanation of symbols]

 4 Slab Catcher 5 Traverse Drum (Package Drive Drum) 13 Yarn Splicing Device 14 Pulse Generator (Rotation Sensor) 23 Yarn Feeler 30 Sorting Means 31, 33 Storage Means 34 Liquid Crystal Display Screen (Display Means)

Claims (3)

[Claims] 1. A classifying unit that has a yarn splicing device and a slab catcher that detects a yarn defect, and classifies yarn splicing errors into factors based on the output of the slab catcher during yarn splicing; An automatic winder equipped with storage means for storing generated data. 2. A yarn splicing device, a slab catcher for detecting a yarn defect, a lower yarn detecting yarn filler, and a rotation sensor for a package driving drum or a package,
An automatic device provided with a classification means for classifying the yarn splicing errors by factors based on the output of the slab catcher, the output of the yarn filler and the output of the rotation sensor at the time of yarn splicing, and a storage means for storing the data generated by the factor of the yarn splicing errors. Winder. 3. The display means for comparing the frequency in the occurrence data for each cause of the yarn splicing error in the storage means with a predetermined value and displaying a specific factor exceeding the predetermined value.
Automatic winder as described.