JPH052624Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a double twister yarn feeding exchange and doffing device that automatically exchanges yarn feeding and doffing.

[Prior art] A double twister applies a double twist to the yarn drawn out from a yarn supply package supported by a spindle by passing it through the center, and then winding the yarn around a paper tube supported by a cradle to send it to a winding package. is beginning to form.

When the paper tube has wound up all the yarns in the yarn feeding package and the yarn feeding package is full, the empty yarn feeding package is replaced with a full yarn feeding package (yarn feeding exchange), and the yarn feeding package is replaced with a full yarn feeding package. Pull out the yarn end from the cradle, pass it through the center hole, remove the full winding package from the cradle, support a new paper tube on the cradle (doffing), and place the yarn end pulled out from the yarn supply package onto the paper tube. It will be fixed.

Conventionally, these tasks were performed exclusively by hand.

[Problem that the invention aims to solve] However, in recent years, with the production of a wide variety of products in small quantities, the frequency of operations such as yarn feeding exchange and doffing has increased, and in order to reduce labor and improve productivity, Therefore, automation of the above tasks was desired.

For this reason, the applicant has developed a device that automatically performs yarn feeding exchange, doffing, etc., and has been considering various ways to put it into practical use. However, this device detects a weight whose winding has been interrupted (a weight with a broken thread) and operates accordingly, so yarn breakage in the middle of the process is avoided without the need for yarn feeding changes or doffing operations. As for the weights, until the yarn splicing is completed, the machine will repeatedly stop at the same weight, which may reduce work efficiency. The device that can solve these problems is
It was unprecedented.

In view of the above-mentioned circumstances, the present invention was devised to provide a double twister yarn feeding and doffing device that does not reduce efficiency.

[Means for Solving the Problems] The present invention has the main body of a device that runs along each spindle of a double twister and performs yarn feeding exchange and doffing, storing yarn breakage weights that are judged not to need to be stopped and returning them to the same state again. A thread cutting weight passing mechanism is provided for passing the thread when it reaches the weight.

[Function] With the above configuration, the yarn breakage weight passing mechanism is prevented from repeatedly stopping and detecting a weight whose yarn is broken in the middle, which does not require yarn feeding exchange or doffing operations.

[Examples] Examples of the present invention will be described below with reference to the accompanying drawings.

Fig. 1 shows an embodiment of a double twister yarn feeding exchange and doffing device according to the present invention, which runs along each spindle 1 of the double twister and performs yarn feeding exchange and doffing. The apparatus main body 2 is provided with a thread cutting weight passing mechanism 3.

A yarn feeding package 5 inserted into a spindle 4 is set on each weight 1, and the yarn is twisted as appropriate and wound up as a winding package 6. Further, on the front side thereof, a green lamp 7 which is turned on when thread breakage occurs, and a magnet 8 for indicating the lot number of the weight 1 are attached.

The thread cutting weight passing mechanism 3 includes sensors 9 and 10 that detect the green lamp 7 and the magnet 8, a remaining thread detection sensor 11 that detects the presence or absence of remaining thread in the thread supply package 5, and these sensors 9, 10, 11
The controller 12 is connected to a travel drive device 13 for reciprocating the device body 2.

The controller 12 includes a magnetic sensor 10.
It has a built-in counter (not shown) that receives the signal, and counts plus (+) when the weight moves to the right in the figure, and minus (-) when moving to the left, thereby indicating the relative position of each weight. It is possible to input the land number as a typical lot number (..., n-1, n, n+1,...).

Further, the controller 12 includes a storage/processing unit (not shown) that stores and judges information input from each sensor 9...11 and outputs a command to run (pass) or stop to the travel drive device 13. is formed. In other words, it is determined whether or not to perform yarn feeding exchange and doffing operation for the spindle 1, and when it is judged that there is a remaining yarn and there is no need to stop, the plot number (n) of the spindle 1 is determined. is stored, and if the state is the same when reaching the weight 1 again, the weight 1 is allowed to pass.

Next, each weight 1 of the double twister and the device main body 2
The configuration will be explained with reference to FIG.

Each weight 1 of the double twister is provided with a spindle 4 that vertically supports a yarn feeding package 5 at the bottom, and a cradle arm 15 that horizontally supports a paper tube 14 above. The yarn Y is passed through the shaft hole 16 and guided upward while being double-twisted, and wound onto a paper tube 14 which is rotationally driven by a rotating drum 17 to form a predetermined wound package 6.

The cradle arm 15 is pivotably supported so as to be able to move up and down in order to bring the winding package 6 into contact with and away from the rotating drum 17, and is connected to a cylinder 18 for raising the winding package 6 to a doffing position. Further, a stocker 19 containing a plurality of paper tubes 14 is attached above the cradle arm 15.

Further, above the yarn supply package 5, a snell wire 20 for guiding the yarn Y, a drop wire 21 for engaging the yarn Y, a yarn guide roller 22, and a feed roller 23 for supplying the yarn Y to the winding package 6 are arranged in this order. .

The base end of the drop wire 21 is pivotally supported by a horizontal shaft 24 arranged at the rear of the yarn feeding package 5, and the distal end is placed against the yarn Y between the Snell wire 20 and the yarn guide roller 22. When the yarn Y in the package 5 becomes empty or breaks, it falls onto the yarn supply package 5 under its own weight. A cam 26 is attached to the horizontal shaft 24 to open and close the operating valve 25 of the cradle arm cylinder 18. When the drop wire 21 falls, the operating valve 25 is opened and the cradle arm 15 is pulled up to the doffing position by the cylinder 18. It's becoming like that.

The above-mentioned green lamp 7 is attached above the stocker 19, and is turned on when the cradle arm 15 is pulled up. The base end of the Snell wire 20 is horizontally rotatably supported via a bracket 27 so that it can escape rearward when replacing the yarn supply package 5.

Furthermore, behind the rotating drum 17, there is a carry-out conveyor 28 for carrying out the doffed winding package 6, and in front of the yarn supply package 5, a full yarn supply package is placed on a tray 29 and conveyed. The conveyors 30 are extended along the direction in which the respective weights 1 are arranged side by side.

The device main body 2 includes a yarn feeding exchange mechanism 3 that performs yarn feeding exchange.
1 and a doffing mechanism 32 for doffing, which are mounted on a cart 33 that runs in the direction in which the respective weights 1 are arranged side by side. Rails 35 and 36 are attached to the upper and lower front sides of the unit 34 constituting the weight 1, respectively, and the bogie 3 is mounted on these rails 35 and 36.
It is movably supported by the unit 34 via wheels 37 and 38 that roll on it. The traveling drive device 13 described above is connected to the lower wheels 38.

The above-mentioned lamp sensor 9 is attached to the upper part of the truck 33, and when the lighting state of the green lamp 7 is detected by this sensor 9, the traveling drive device 1
3 is decelerated and stopped, and the cart 33 is positioned and stopped on the front side of the weight 1. Further, the magnet 8 and the magnetic sensor 10 are mounted so as to face the lower part of the unit 34 and the lower part of the truck 33, respectively.

The yarn feeding exchange mechanism 31 includes an operating arm 39 that is provided on a cart 33 so as to be able to rise and fall as well as rise and fall, and extends above the yarn feeding package 5 on the spindle 4 when in a horizontal state. The remaining yarn detection sensor 11 described above is installed at its tip.
is installed.

Further, a telescoping arm (not shown) is attached to the operating arm 39 and is configured to extend forward and retract, and the distal end of the telescoping arm engages with the drop wire 21 and the snell wire 20 to return it to its original position. Furthermore, a checker 40 is provided on the operation arm 39.
is provided so as to be slidable along the longitudinal direction, and is adapted to grip the yarn supply package 5 and the tensioner cap 41 that is attached to and detached from the shaft hole 16 thereof.

Then, the yarn feeding is changed by sliding the chucker 40 and raising and lowering the operating arm 39.
Transfer the yarn feeding package on the peg 42 of No. 9 to the outlet peg 43 provided on the trolley 33, then transfer the empty yarn feeding package on the spindle 4 onto the peg 42 of the tray 29, and then transfer the fed yarn package to the outlet peg 43. 43 onto the spindle 4 to complete the process.

The doffing mechanism 32 includes an operating lever 45 that operates the cradle lever 44 of the cradle arm 15 that has been raised to the doffing position, and the operating lever 45 receives the falling package 6 full of packages and moves it onto the carry-out conveyor 28. The paper tube supply arm 47 extracts the paper tube 14 from the stocker 19 and supplies it to the cradle arm 15.

The operating lever 45 is attached to a drive shaft 48 that is rotatably and slidably axially provided, and when doffing, it swings inside the cradle lever 44 and then slides to open the cradle arm 15. It's getting old.

The saucer 46 is connected and supported via a parallel link 49 to a rotating shaft 48 attached to the cart 33, and when doffing, it is extended directly below the winding package 6 by rotation of the rotating shaft 48. ing.

The paper tube supply arm 47 is attached to a rotating shaft 50 supported by the cart 33, and a paper tube chucker 51 for removably holding the paper tube 14 is attached to its tip. And paper tube supply arm 47
When the paper tube 14 is removed from the stocker 19, it turns downward and waits, and after a bunch is formed on the paper tube 14, it is delivered to the cradle arm 15 and turned and stored above the cart 33. ing.

Next, the operation of this embodiment will be explained (see FIG. 3).

By driving the rotating drum 17 and rotating the paper tube 14 in each weight 1 of the double twister,
The yarn Y is pulled out from the yarn supply package 5 while being twisted twice, and wound around a paper tube 14 to form a winding package 6. Then, the trolley 33 carrying the device main body 2 is caused to reciprocate on the rails 35 and 36 (ST1). At this time, the lot number (...n...) of each weight 1 is detected by the magnet sensor 10 that senses the magnet 8 of each weight 1. Thread breakage occurs,
When the drop wire 21 falls, the green lamp 7 is turned on. When the moving device body 2 detects this with the lamp sensor 9 (ST2),
The controller 12 decelerates the travel drive device 13 and stops it at a predetermined position directly facing the weight 1 (ST3).

Then, the tip of the operating arm 39 is extended to the yarn feeding package 5, and the remaining yarn detection sensor 11 detects the presence or absence of yarn feeding (ST4).

If there is no yarn being fed, it is determined that the winding package 6 is full, and the operating lever 45 of the doffing mechanism 32 and the receiving tray 46 operate the cradle arm 15 to transport the full winding package 6 to the conveyor 28. At the same time, a new paper tube 14 is supplied to the cradle arm 15 by the paper tube supply arm 51.
In parallel with this, the empty yarn supply package is removed by the operating arm 39 of the yarn supply exchange mechanism 31, and a full yarn supply package 5 is set on the spindle 4 (ST5).

In addition, when the yarn is fed, the controller 12 determines that the yarn has broken halfway, stores the lot number (n) of this weight 1 (ST6), and issues a command to the traveling drive device 13 to restart traveling (ST7). ).

When the device main body 2 that has been visiting reaches the weight 1 again, it detects the green lamp 7 (ST8).
If the light remains on, continue passing through and proceed to trolley 33.
The stopping of the operation arm 39 and the operation of detecting remaining yarn by the operation arm 39 are not performed (ST9).

If the green lamp 7 is off, it is assumed that the operator has spliced the thread with this thread breakage weight 1, resets the memorized lot number (n) (ST10), and continues running to avoid thread breakage. Detects full balls.

In this way, the yarn feeding exchange mechanism 31 and the doffing mechanism 3
2 is equipped with a thread breakage weight passing mechanism 3 that stores the thread breakage 1 before the thread becomes full and passes the thread breakage weight 1 when the weight 1 in the same state is reached again. , the cart 33 is prevented from repeatedly stopping for the weight 1 that does not require yarn feeding exchange or doffing operations. That is, improved efficiency is achieved.

Note that the yarn feeding exchange mechanism 3 provided in the device main body 2
The doffing mechanism 1 and the doffing mechanism 32 are not limited to the above embodiments, but may be any means having similar functions.

Further, although FIG. 2 shows one bundled package as the yarn supplying package 5, it is also possible to apply a two-stage type yarn supplying package in which uncombined packages are stacked one above the other.

[Effects of the Invention] In summary, the present invention provides the following excellent effects.

The main body of the device that performs yarn feed exchange and doffing for each spindle of the double twister is equipped with a yarn breakage passing mechanism that stores the yarn breakage weight and passes it when it reaches a spindle in the same state again. There is no need to repeatedly stop when changing or doffing unnecessary weights.
Efficiency reduction is prevented.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the double twister yarn feeding and doffing device according to the present invention, Fig. 2 is a side view thereof, and Fig. 3 is a flowchart for explaining the operation of the present invention. It's a chat. In the figure, 1 is the weight of the double twister, 2 is the main body of the device, and 3 is the thread cutting weight passing mechanism.

Claims (1)

[Scope of utility model registration request] The yarn runs along each spindle of the double twister and performs yarn feeding exchange and doffing.The yarn is stored in the main body of the device, which performs yarn feeding exchange and doffing, and stores yarn breakage weights that are judged to require no stopping, and passes the yarn when the yarn reaches the spindle in the same state again. A double twister yarn feeding and doffing device characterized by being equipped with a spindle passing mechanism.