JPH0212869B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a doffing device in an automatic winder.

In an automatic winder consisting of a large number of winding units arranged in parallel, the unit automatically doffs a full package that has been wound up to a set amount, and the doffed full package is mounted on the back of the unit. The applicant has previously proposed a device that transfers and discharges on a conveyor that extends along a conveyor. In other words, JP-A-56-
As shown in No. 132269, this is a device that transports a full package detached from a cradle arm by its own weight onto a belt conveyor installed at the back of the unit. In this device, the packages wound up in each unit are automatically transferred to one side of the winder, so when connecting to another transfer device for the subsequent process, or manually transferring the stored fully wound packages. This is convenient when dealing with
When distributing different types of yarns to separate winding units, that is, dividing the winder into several unit groups and winding different types of yarns with one automatic winder, the following disadvantages arise: arise.

In other words, in the above device, when the package cages that have been wound up are doffed, they are automatically conveyed one after another on a belt conveyor, so that the winding time for the packages to reach the exit of the conveyor varies depending on the number of thread breakages. Full packages from each unit are carried out at random, and full packages of different types of yarns are mixed at the exit of the belt conveyor, necessitating extra manual sorting work. Particularly in the case of similar threads, sorting becomes extremely difficult.

The above-mentioned inconvenience can be solved even if the winding start time and other timings are made inconsistent for each of the plurality of unit groups in which different types of pipe yarns are distributed and wound. Since the upstream times are different, the upstream times in each unit eventually become completely random and cannot be resolved.

This invention provides a system in which, even when winding different types of pipe threads with one automatic winder as described above, a fully wound package is completely separated into different types of pipe threads and transported out of the automatic winder. None, this solves the above inconvenience.

Hereinafter, embodiments will be described based on the drawings.

In Fig. 1, W is an automatic winder having 60 winding units U arranged in parallel in the direction perpendicular to the plane of the paper. It is equipped with a traversing drum 2 etc. that rotates the winding machine in contact with the winding drum 2, and winding is performed by a known method. 3 is a well-known magazine for storing a plurality of tube yarns, and in this automatic winder W with 60 spindles, for example, 2
A method for winding up different kinds of pipe threads is to manually insert different pipe threads into the magazine 3 for each unit (for example, A pipe thread for the 1st to 40th spindles, ), or by using the trolley-type pipe delivery device disclosed in Japanese Unexamined Patent Publication No. 54-27037 filed by the present applicant, for example, inserting the pipe B into the 1st to 40th spindles. There is a semi-automatic method in which the supply of the pipe threads to the remaining spindles 41 to 60 is carried out manually, and a fully automatic method as described below.

That is, as shown in the schematic plan view of the bottom of the automatic winder W in FIG.
Tube delivery path FA where only A-tube yarn circulates through ST
and a pipe delivery path FB in which only the B pipe yarn circulates through the pipe sorting and conveying device ST, for example, are formed by a belt conveyor 4 and a guide plate, and are arranged along the other side of the winding unit U. A return path MR for conveying the empty bobbin after winding is also formed by the belt conveyor 4 and a guide plate, and the above-mentioned tube yarn delivery path is
Unit group UA where FA circulates (for example, 1st to 40th
The A-pipe yarn may be wound up at the spindle, and the B-pipe yarn may be wound at the unit group UB (for example, the 41st to 60th spindles) through which the pipe delivery path FB circulates.

As shown schematically in a perspective view in FIG. 3, the guide plates 6 and 7 are placed between the delivery paths FA and FB and the return path MR to take in the yarn 5 from the yarn delivery paths FA and FB to each unit. A passage 8 is provided which passes directly under the unit U, and a rotating disk 9 is provided below the passage 8. A guide plate 11 is provided at the entrance of the passage 8 to provide a yarn intake port 12 and a surplus yarn outlet port 13. By the rotation of the rotating disk 9, the delivery paths FA and FB are formed.
The pipe yarn 5 inserted into the peg tray 14 moving above may be introduced into the winding position WP directly below the unit. In addition, 15 is the winding position
A rotating lever for discharging the empty bobbin also serves to position the pipe thread 15 introduced into the WP. Reference numeral 16 is a nozzle that blows out compressed air to blow up the thread end that has already hung down inside the woodwind. The sorting and conveying device ST is a cam device in which a circumferential groove is formed in the disk portion of the peg tray 14 at different heights for each tube yarn, and that engages with the circumferential groove to allocate the destination of the peg tray.
Iron rings are attached to the disc part of the peg tray 14 at different heights for different pipe threads, and a sensor for detecting the iron rings and a switching device, etc., which swings according to the detection signal of the sensor and distributes the destination of the peg tray, are installed. Just use it.

Using the third method above, it is possible to automatically supply two or more types of different types of yarn to one automatic winder, and if the number of pipes and yarn delivery paths FA and FB are further branched, three or more types of different types of yarn can be supplied to one automatic winder. Tube yarn can be supplied automatically.

Above, we have explained a method in which a large number of units are divided into two or more unit groups UA and UB in one automatic winder W, and two or more different kinds of pipe yarns are simultaneously wound with the same winder. Either one may be adopted and is not related to this invention.

In the following, in the 60-spindle winder shown in Fig. 1, the 1st to 40th spindles are the unit group UA for winding the A-pipe yarn, and the 41st to 60th spindles are the unit group UB for winding the B-pipe yarn. The present invention will be explained by taking as an example.

That is, returning to FIG. 1 again, on the back of the unit U, that is, when the yarn running path side is the front side, a conveyor belt 17 for transporting a full package is provided extending along the unit U. At each unit position of the conveyor, a guide path 18 is formed by a bottom plate 19 and a side plate 21 and is provided to guide a full package leaving the cradle part 1 from the removal position to the conveyor.
The guide path 18 is slightly inclined toward the conveyor 17 side, and has an inclination angle θ sufficient for the fully wound package P detached from the cradle portion 1 to roll under its own weight.
It has. (FIG. 4) Reference numeral 22 denotes a guide bar fixed along the side of the conveyor belt 17. The guide bar 22 extends across all units and rolls on the guide path 18 to guide the conveyor belt 17. It has the role of a stopper and posture control for the package cage placed on top, and uses the rebound when the package cage collides with the guide bar 22 to make the axis of the package cage parallel to the conveyor running direction. During transport of the package, the thread layer on the outer surface of the package and the guide bar 22 are fixed at a position where they are not in contact with each other.

A stocking device 23 as described below is provided at the end of the guide path 18 for temporarily stopping a fully wound package leaving the cradle portion.

That is, the stock device 23 shown in FIGS.
In this example, there are stock bars 24 that extend along the unit and are provided independently for every 10 spindles.
, a support bar 28 that supports the stock bar 24 via brackets 25 at appropriate intervals, and is itself supported by a bearing 27 fixed to the machine frame 26;
The above-mentioned stock pivoting fluid cylinder 31 is connected to the stock via a lever 29 which is integrally fixed to the stock.

That is, in this example, since the winding unit has 60 spindles, six units of the stock device 23 having the same structure are consecutively arranged as shown in FIG. The device will be explained in detail.

That is, the lever 29, which is pivotable about the support bar 28, is pivotally attached to the lower end of the connecting rod 33 connected to the piston rod 31a of the fluid cylinder 31, which is supported 32 on the machine frame 26. As a result of this operation, the stock bar 24 pivots between the solid line position and the two-dot chain line position in FIG. The stock bar 24 moves the center of the package P, which is stopped by the stock bar 24, into the stock bar 24.
It is provided at a position where the central arc locus 34 passes (FIG. 4).

Furthermore, the length L of the guide path 18 is determined by the separation position of the fully wound package from the cradle section and the conveyor 1.
7 without interfering with the package P at both positions, and at least 1 point between both package P positions.
It is advantageous to have a length that allows for the presence of several full packages and that includes a distance sufficient to prevent the stock bar 24 from interfering with the packages P on the conveyor 17 when the stock bar 24 rotates.

Note that doffing of each of the above units is performed by a traveling body 35 shown in FIG. That is, the ceiling rail 3 laid above the unit and along the unit.
6, the traveling body 35 is suspended via the wheels 37, and the fully wound package P is detached from the cradle part 1 by a doffing mechanism (not shown) equipped on the traveling body 35, and the empty bobbin stored in the traveling body 35 is removed. It is supplied to the cradle section and winding is restarted.

The effect will be explained below.

When winding is performed in each of the winding unit groups UA and UB and a certain amount of yarn layer is formed, the fully wound package is separated from the cradle section by the doffing operation described above and placed on the guide path 18. The package that fell fell onto the guideway 1 as mentioned above.
It rolls under its own weight due to the inclination of 8, but since a stock bar 24 is provided at the end, it is temporarily stopped at that position.

In other words, in each winding unit, the time required to complete the winding varies depending on the number of thread breakages, etc., as mentioned above, and even if winding is started at the same time, the doffing time differs for each unit. The packages P doffed at different times are all stopped by the stock bar 24 regardless of the unit U or yarn type. Therefore, after a certain period of time, the stock bars 24.1 to 24.4 of the unit group UA
A full package PA of A-tube yarn is attached to the unit group.
The full package PB of the B tube yarn is stopped and temporarily stopped at the stock bars 24.5, 24.6 of the UB (as shown in Figure 6), but the stock bars 24.1 to 24.6 are It is rotated according to a time schedule such as , and the full package PA of the A-pipe yarn and the full package PB of the B-pipe yarn are carried out at the same time.

That is, each stock bar 24.1-2
4 and 6 fluid cylinder 31 solenoid valves
SV is connected to the circuit shown in Fig. 7, and by switching each snap switch S1 to S6, it can be connected to either parallel circuit a or b connected to the power supply. Solenoid valves SV corresponding to stock bars 24.1 to 24.4 are on the circuit a side, and stock bars 24.
Solenoid valves SV corresponding to 5, 24, and 6 are connected to the circuit b side. Switches Sa and Sb are interposed in the parallel circuits a and b, respectively, which are turned on and off at fixed time intervals by timers TMa and TMb, and each timer TMa and TMb is set to the average value of the automatic winder. 20% from winding time T
The timer is set to a relatively short time t, and the timer
The time-up timings of TMa and TMb are set to occur with a difference of dt time (for example, 5 minutes).

Therefore, for example, if the above average winding time T is
60 minutes, the opening time interval t of the stock bar 24 is 50 minutes.
Assuming that the stock bars 24.1 to 24.6 are released in the order shown as the time chart in FIG.・At the time of TA, the full packages PA of the A tube yarns of the unit group UA, which were held by 4, are released all at once by the rotational movement of the stock bars 24.1 to 24.4, and are immediately released (within at least 5 minutes). Said conveyor 1
After the unloading is completed (after dt time from the above-mentioned time point TA), the stock bar 24.5,
At TB, the full package PB of B tube yarn of unit group UB, which had been stopped by 24, 6, is released all at once by the rotational movement of stock bars 24, 5, 24, 6, and immediately carried out by conveyor 17. . The time difference dt between the time-up timings of the timers TMa and TMb is varied and set depending on the delivery speed of the conveyor 17.

According to the time chart shown in Fig. 8 above, the first turn TA of the stock bars 24.1 to 24.4 occurs before the average winding time T has elapsed, so a small number of full windings that were hoisted very quickly. It is expected that only the package cage will be taken out, but during the second and subsequent turns
An average of about 40 full package PAs are carried out all at once from the TA, and stock bars 24, 5, 24,
During the 6th turn, an average of about 20 full package PBs are carried out all at once each time.

In addition, each full package PA, PB that was carried out
As shown schematically in FIG. 6, the pieces are lifted one by one by a lifter 41 provided at the end of the conveyor 17 and conveyed by being hooked onto an overhead conveyor 43 having a hook 42 running above. You can also
An end-feeler (not shown) is provided at the end of the conveyor 17, and a notification device such as a lamp or an alarm connected to the end-feeler allows the operator to carry out the full package PA or PB and convey the conveyor 17.
The worker who is notified of the arrival at the end may receive the package PA or PB into a different container for each yarn type at the exit position of the conveyor 17; Full package cages of different varieties that had been suspended due to
Since PA and PB are carried out at the same time at different times, and if they are of the same type, package cages of different types do not mix randomly at the exit of the conveyor, and subsequent sorting work is omitted.

Furthermore, in the above example, the stock device 23 is provided independently for every 10 spindles, and the snap switches S1 to S6 are
Each stock bar 24.1 to 2 can be adjusted by simply switching
Since the operation timings of 4 and 6 can be easily switched between using the timer TMa and using the timer TMb, the number of lots of each yarn can be changed and the ratio of each unit group UA and UB can be changed. In other words, if you want to make the 1st to 30th spindles a new unit group UA and the 31st to 60th spindles a new unit group UB, in the above example, the snap switch S4 corresponding to the stock bars 24 and 4
By simply switching the , the packages stopped by the stock bars 24 and 4 can be newly ejected at the timing of TB, making it easy to respond to changes in the relevant unit group.

In addition, when winding three or more types of different types of yarns, for example, the 1st to 20th spindles are set as a unit group for winding the A tube yarn, the 21st to 50th spindles are set as a unit group for winding the B tube yarn, and the 51st spindle is set as a unit group for winding the B tube yarn. In the case where ~60 spindles are used as a unit group for winding C pipe yarn, the power supply circuits a and b are further branched to form three parallel circuits, and a solenoid valve corresponding to the operating fluid cylinder 31 of each stock bar is installed.
Connect the SV to the three power supply circuits mentioned above: Snap switches S1, S2, and S3 are connected to circuit a, snap switches S4 and S5 are connected to circuit b, and snap switch S6 is connected to the newly branched circuit to connect each unit group. It is only necessary that the stock devices 23 corresponding to the storage devices 23 are pivoted according to successive operating timings generated by different timers.

In any case, as is clear from the above description, in the doffing system of the present invention, in an automatic winder in which a number of winding units are arranged side by side, the doffing system extends along the unit and places a fully wound package on it. A stocking device for temporarily stopping the full package is provided in the middle of the package guide path provided between the traveling conveyor and the position where the full package leaves the cradle portion of each winding unit. Since each unit group of the automatic winder is made to be able to operate independently, it is possible to individually release packages that have been doffed and are temporarily suspended in the storage device. This allows the packages rolled up by each unit group to be carried out without mixing them up. In addition, since the timing of the rotation of the stock bars 24.1 to 24.6 can be freely changed by simply switching the snap switches S1 to S6, it is possible to freely change the timing of the rotation of the stock bars 24.1 to 24.6. Changes in proportions can also be easily accommodated.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of an automatic winder, Fig. 2 is an overall plan explanatory diagram showing a method for automatically supplying different types of pipe yarn to the automatic winder, and Fig. 3 is a winding diagram showing a method for automatically supplying different types of pipe threads to the automatic winder. FIG. 4 is a side view showing an embodiment of the doffing system of the present invention, and FIG. 5 is a rear view of the doffing system of the present invention.
6 is a schematic overall plan view, FIG. 7 is a circuit diagram showing an example of the operating circuit of the fluid cylinder, and FIG. 8 is a time chart showing the operating timing of each stock device. 1...Cradle part, 17...Conveyor, 18
...Guide path, 24,1 to 24,6...Stock bar, U...Take-up unit, UA, UB...Unit group, P, PA, PB...Full package, SV...
... Solenoid valve, S1 to S6... Snap switch, a, b... Circuit, TMa, TMb... Timer.

Claims (1)

[Claims] 1. The full package P is placed in the package guide path 18 between the transport conveyor 17 extending along a large number of parallel winding units and the position where the full package P leaves the cradle portion 1 of each winding unit U. Each winding unit group UA to be temporarily stopped,
A plurality of stock bars 24,1 to 24,6 are provided corresponding to each stock bar, and the snap switches S1 to S6 of each solenoid valve SV of each stock bar rotation fluid cylinder 31 are connected in parallel to the power source. The circuits a, b, . . . are connected to switches Sa, Sb which are turned on and off at fixed time intervals by timers TMa, TMb, . ,... A doffing device in an automatic winder equipped with...