JPH01246426A - Method for controlling fine spinning frame - Google Patents

Abstract

PURPOSE:To specify end breakage as well as fine spinning unit producing a fine spinning bobbin having small defect, by detecting defect of yarn such as small defect of fine spinning bobbin in each take-up unit and simultaneously reading identifying mark of tray of the fine spinning bobbin. CONSTITUTION:Bar code readers 17 and 18 for reading a bar code attached to a tray T are provided to a bobbin supplying station 9 and each take-up unit W1-Wn. A tray identifying signal read with a bar code reader 17 is input and memorized into a memory in a control signal 19 together with fine spinning unit producing the fine spinning bobbin on the tray. The bar code on the tray is read by the bar code reader 18 at rewinding position of take-up unit and defect of yarn is detected by a slub catcher and when frequency for detecting yarn defect in a control part 19 exceeds range of setting frequency, a fine spinning unit producing the bobbin is specified and a lump 29 is turn on and off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a spinning machine management method that makes it possible to track spinning units that have produced spinning bobbins with defective yarns.

[Prior art 1] Yarn produced by a spinning machine, especially a ring spinning machine, is conveyed and supplied in the form of a spinning bobbin to an automatic winder in the next process. The above-mentioned spinning bobbins can be conveyed in a case where a large number of bobbins housed in a box randomly or in a line are conveyed all at once, or when a spinning machine and a winder are connected by a bobbin conveying path and a single bobbin is conveyed. There are cases where each item is transported independently.

In any of the above cases, the bobbin once doffed from each spinning unit of the spinning machine is simply supplied to the winder as a finished bobbin. Therefore,
For example, even if the quality of the yarn produced in a certain spinning unit is inferior to the yarn produced in a spinning unit, and the yarn breaks frequently during the rewinding process, the yarn produced in the winder will We only know that there are many splicing points in the package. In other words, the yarn produced in the above-mentioned specific spinning unit is freely rewound by which winding unit in the winder. Since bobbins doffed from other normal spinning units are supplied to the winder in a random manner, many of the packages doffed at the winder contain yarn of poor quality. There is.

Therefore, the present applicant focused on the above-mentioned problem and tracked the conveyance route of the yarn produced in the spinning unit. We would like to develop a system that can grasp the yarn breakage information in the winder, feed back information on yarn breakage in the winder to the spinning machine, and manage each spinning unit of the spinning machine.
No. 29).

[Problems to be Solved by the Invention] However, in the above-mentioned management system, spinning bobbins whose number of yarn breaks exceeds a set value are removed from the tray in the winding unit, and the empty tray is ejected from the winding unit. Since this system identifies the spinning unit by reading the identification mark on the tray with a reading device during transportation, it is possible to find the spinning unit that produced the spinning bobbin that has many yarn breaks, but In other words, threads with small defects below the sensitivity setting of the slab catch were overlooked.

An object of the present invention is to solve the above-mentioned problems and provide a spinning ti management method that can discover spinning units that have produced spinning bobbins that have not only yarn breakage but also minor defects.

[￥! Means for Solving Problem R] In order to achieve the above object, the present invention provides a tray for individually conveying spinning bobbins produced from a plurality of spinning units for each spinning unit to a plurality of winding units of a winder. An identification mark is attached to the spinning bobbin, and when the spinning bobbin is transferred to the tray, the identification mark is read and the spinning unit that produced the spinning bobbin is memorized, and each winding unit rewinds the spinning bobbin. At the same time, defects in the yarn are detected and the identification mark on the tray is read, and defects in a particular spinning unit can be tracked from the above-mentioned stored information.

[Function] Each winding unit detects yarn defects such as small defects while rewinding the spinning bobbin, and also reads the identification mark on the spinning bobbin's tray. It becomes possible to quickly and accurately identify the spinning unit that produced the spinning bobbin having yarn with no small defects.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

As an example, a so-called spinning winder in which a spinning machine and a winder are directly connected will be described. For example, in a spinning winder as shown in Japanese Patent Application Laid-Open No. 59-163268, as shown in FIGS.
The spinning bobbins B, which are fully wound in each spinning unit 1, are doffed all at once and placed on the transport band 2, which can run along the spinning units, at pitch intervals of the spinning units. It is inserted in. After this, transport band 2 moves to arrow 3 based on the spinning bobbin request command from the winder.
The bobbin Ba at the upper end of the inclined conveyor moves intermittently in the direction
From there, the material is sequentially supplied via the chute 4 to a bobbin tray held below.

On the other hand, on the wine goo 5 side, the bobbins are individually separated and inserted upright in a bobbin tray, which is an independent bobbin transport medium, and are fed to the winding unit and rewound.
It is discharged. Empty bobbins and the like discharged from each winding unit are transferred to the bobbin extraction station 6 with the tray intact, and at the station 6, empty bobbins and those with a very small amount of remaining thread are re-supplied to the winder for use. A bobbin with a very small amount of yarn remaining, which cannot be removed, is extracted from the tray in which the bobbin is inserted, and the empty bobbin is returned to the empty bobbin supply position at one end of the spinning machine via the empty bobbin conveyance path 7.8. The threaded bobbin is separately discharged or stored in a box. Therefore, the bobbin extraction station 6
The trays that have passed through are only empty trays or trays with remaining yarn that have enough yarn to be fed to the winder again, and each time an empty tray arrives at the spinning bobbin supply station 9, the spinning side The transport band 2 rotates by one pitch, and one spinning bobbin is supplied onto a waiting empty tray, placed therein, and then supplied to the winding unit again.

An embodiment of a bobbin tray applied to the method of the present invention in this type of spinning winder is shown in FIGS. 4 and 5. The tray T is integrally formed with a disc-shaped base 50, a stand 51 for supporting the lower end of the bobbin, and a peg 52 for inserting the bobbin, and the inside of the tray is hollow.
An air passage hole 53 is formed to blow up the end of the yarn that has been previously inserted into the center hole of the bobbin on the tray and is hanging down at the winding position of the winding unit. A barcode label 10 on which a concentric barcode 11 is drawn is attached as an identification mark as shown in FIG. Barcode labels showing different symbols are attached.

For example, in Fig. 1, a spinning machine 1 consisting of a spinning unit of 200 spindles on one side and 400 spindles on both sides and a winder 5 consisting of winding units W1 to Wn of 10 spindles are directly connected to maintain a balance in yarn processing capacity. Assume that each take-up unit has 3 winding units.
Assuming that there is a space for stocking book bobbins, and that 50 trays are used in circulation within the Wine Goo 5 area, each tray has l"No, IJ~"No.
, 504 is attached to the barcode 11.

Figure 6 shows spinning bobbin supply station 9 to empty tray T.
An example is shown below. That is, the empty tray T is at the bobbin supply position 1''
When reaching point a, when it is confirmed by the tray arrival sensor S1 and the bobbin presence/absence sensor S2 that there is no bobbin on the tray Ta, a bobbin request signal is output to the spinning machine, and the transport band 2 in FIG. After rotating by one pitch, one bobbin falls into the chute 4 shown in FIG. 8, and the bobbin is inserted onto the tray T. The bobbin supply device 12 is connected to a shaft 14a by rotary solenoids 13a and 13b.

A movable guide plate 15a swings around 14b.

15b opens and closes to control bobbin guide and transfer on the conveyor 16.

Further, in the bobbin extraction station 6 shown in FIGS. 2 and 3, a device is installed in which the bobbins on the tray that have arrived at the relevant position are extracted and raised by a lifter, and are sorted into empty bobbins and bobbins with extremely small amounts of thread remaining. Ru.

The bobbin supply station 9 and each winding unit are provided with bar code readers 17, 18 for reading bar codes attached to the trays at positions facing the upper surface 54 of the trays, as shown in FIG. The tray identification signal read by the barcode reader 17 is temporarily input and stored in the control device 19.

At this time, in the method described below, the spinning unit in which the spinning bobbin supplied to the tray T was produced is input and stored at the same time.

Therefore, in this embodiment, when feeding the bobbin to the tray,
The tray and the bobbin on the tray are identified.

FIG. 7 shows an example of a winding unit, in which the bobbin B is automatically taken in from the conveyance path 20, rewound, and discharged while the bobbin B is placed on the tray T. That is, on both sides of the winding unit Wi, a spinning bobbin transport path 20 and a return path 21 for empty bobbins etc. are laid along the unit, and guide plates 22.
The tray is regulated and guided in the advancing direction by 23 and 24 and the rotating disk 25, and is automatically taken into the winding unit where there is space for the tray in the waiting groove 26, and reaches the winding position 27. . When a certain number of bobbins are taken into the standby groove 26, subsequent bobbins are prevented from being carried in by a tray on the standby groove entry side, and proceed to the next unit through the surplus bobbin delivery port 28. The barcode reader 18 is at rewind position 2
It is designed to read the barcode on the tray located at 7. When the thread is unwinded from the bobbin that has reached the winding position, small defects such as thread breakage or thread unevenness that does not result in thread breakage are detected and controlled by the slab catcher installed in each unit. At the same time, the number of yarn defects detected in the bobbin being wound in the unit is accumulated and stored.

Each winding unit W+ is provided with a lamp 29 that blinks in response to a signal from the control section 19 when the number of thread breakages during winding of one bobbin exceeds a set number.

Next, the operation of the embodiment will be described.

In FIG. 1, all of the spinning units in the spinning machine 1 are given codes that identify the units, for example, S+, 82 from one end on the winder side.

A specific number such as Si+1...Sn is assigned to the other side of B3...Si1.

Now, - Qi Yuyang is completed and the spinning bobbin 81~81.3i+1... is placed on the transport band on the front of the unit.
・Assume that Bn has been transferred.

Under the above conditions, when a bobbin request signal is issued from the bobbin supply station 9 on the winder side, the bobbin B1 at the left end of one spinning unit is first supplied onto the tray T. Since the trays T are conveyed at random, it is assumed that the tray T in which the bobbin B1 has just been inserted is tray No. rT7J. At this time, the memory in the control device 19 contains “T”.
"Sl" is input and stored by the counter as the code corresponding to "7", and if the next tray is rT15J, the second bobbin B2 to be supplied is inserted, so "Sl" is stored in the memory corresponding to rT15J. B2'' is input and stored.

Assume that the tray "T7" is transported and taken into the winding unit "W3" of the winder, and reaches the winding position @27.

At this rewinding position 27, the barcode reader 18 reads the barcode 11 on the tray, and inputs the tray number r T 7 J to the control device 19.

Then, when the thread on the bobbin is wound back at the winding position 27, the slab catcher detects a thread defect and inputs it to the control section 19. The control unit 19 measures the number of yarn defect detections, and if the number of detections exceeds the set number of times, the yarn in the bobbin "B1" on the tray "T7" is a defective yarn, and the bobbin rBJ
The spinning unit ``Sl'' that produced the ``Sl'' is specified, and the lamp 29 of the winding unit is made to blink.

In this way, it is possible to specifically detect the spinning unit that produced the bobbin with yarn defects, so the operator can determine that some kind of defect has occurred in the same spinning unit and inspect the unit. All you have to do is

On the other hand, when the operator confirms the lamp 29, he pulls out the bobbin on the tray "T7" that is discharged from the unit. The tray "T7J" from which the bobbin has been removed is conveyed on the bobbin return path 21 toward the bobbin extraction station 6. On the return path 21 is a tray in which empty bobbins discharged from other winding units are inserted. Alternatively, empty trays and the like from other units whose number of yarn defect detections has exceeded a set value and whose bobbins have been removed by the operator are mixed and conveyed at random.

When the various trays conveyed in the above state reach the bobbin extraction station 6, empty bobbins and bobbins with extremely small residual threads are extracted, and empty trays and trays with bobbins with residual threads pass through.

The empty bobbin extracted at extraction stay John 6 is
It is returned through a conveyance path 8 such as a conveyor to be supplied onto the beg of the transport band at one end of the spinning machine 1, that is, in this embodiment, at the end opposite to the unloading side of the spinning bobbin.

Further, the bobbin with a very small amount of yarn remaining is housed in a bobbin box 37 provided near the extraction station 6 to be distinguished. Therefore, empty trays and trays having bobbins with residual yarn are mixedly transported on the passage 38 between the extraction station 6 and the bobbin supply station 9 in FIG.

FIGS. 8 and 9 show other embodiments of the barcode provided on the tray. That is, a rubber plate 48 in which concentric magnets M1 to M5 are embedded is fixed to the upper surface of the base 50 of the tray T, and the tray is identified by the combination of the base and demagnetization of each of the magnets M1 to M5. be. 49 is a reading device in which the same number of Hall elements H1 to H5 as the magnets M1 to M5 are arranged, and is adapted to detect the magnetized state of the magnets.

[Effects of the Invention] To summarize, according to the present invention, in each winding unit, defects in the yarn such as small defects on the spinning bobbin are detected and identification marks on the tray of the spinning bobbin are read. Of course, it is possible to quickly and accurately identify the spinning unit that produced the spinning bobbin having yarn with small defects that do not result in yarn breakage, which is extremely effective in producing high-quality yarn.

[Brief explanation of the drawing]

Fig. 1 is a component diagram showing an embodiment of the present invention, Fig. 2 is a schematic front view showing an example of a spinning winder, Fig. 3 is a plan view thereof, and Fig. 4 shows an identification mark attached to a tray. 5 is a plan view of the same tray, FIG. 6 is a perspective view of an example of a bobbin supply station, FIG. 7 is a perspective view of an example of a winding unit, and FIG. 8 is a perspective view of an example of a winding unit. FIG. 9 is a longitudinal cross-sectional view showing the state in which the identification mark attached to the tray is read by the method described above, and FIG. 9 is a plan view of the same tray. In the figure, 1 is a spinning machine, 5 is a winder, 11 is an identification mark (barcode), 17.18 is a reading device (barcode reader), T is a tray, B1-Bn are spinning bobbins, S1-
3n is a spinning unit, and W1 to Wn are winding units.

Claims (1)

[Claims] 1. An identification mark is attached to the tray for individually transporting spinning bobbins produced from multiple spinning units of a spinning machine to multiple winding units of a winder, and when transferring spinning bobbins to the tray, , reads the identification mark and memorizes the spinning unit that produced the spinning bobbin, and when each winding unit rewinds the spinning bobbin, detects defects in the yarn and reads the identification mark on the tray. A spinning machine management method characterized in that defects, etc. of a specific spinning unit are tracked from stored information.