JPS6321580Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a pipe yarn feeding device to a winder of a spinning machine which is directly connected to the winder.

Prior Art Conventionally, as shown in Japanese Patent Application Laid-open No. 55-119668, this type of yarn feeding device has conventionally incorporated a conveyor for conveying bobbins into a portion extending along the longitudinal direction of the front surface of a spinning frame and a fine spinning machine. There is one in which a conveyor is integrally constructed with a part that rises obliquely from the spinning machine to the winder, and a large number of pegs are planted around the entire circumference of the conveyor to support empty bobbins and full yarn. However, with this configuration, the conveyor as a whole becomes very long, which has the disadvantage that maintenance, inspection, and assembly operations become troublesome.

In order to eliminate the drawbacks of this conventional device, the applicant first filed Japanese Patent Application No. 188681/1983 (Japanese Patent Application No.
81339), as shown in Fig. 1, an endless conveyor 3 with pegs, in which an empty bobbin 1 is supplied at one end and a full yarn 2 is pulled out at the other end, is installed along the longitudinal direction of a spinning frame 4. At the end of the conveyor 3, there is a sub-conveyor 8 for conveying the full yarn 2 pulled out from the peg 5 on the conveyor to the chute 7 of the winder 6.
We proposed a diagonal arrangement. In this device, the transport conveyor 3 that extends along the left and right longitudinal direction of the spinning frame 4 and the sub-conveyor 8 that rises obliquely from the spinning frame 4 toward the winder 6 are separate conveyors, so the length of the conveyor is short. Although the above-mentioned drawbacks of the conventional method are solved in this way, the drawback of lack has not been taken into consideration.

In this conventional device, the full yarn 2b waits at the end of the conveyor 3 until a full yarn request signal is issued from the winder 6, and when the empty peg 10 is transferred to the bottom of the chute 7 by the conveyor 9 of the winder 6. A light reflecting sensor 21 located below the chute 7 and at the height of the passage of the empty peg 10 detects this and issues a full yarn request signal. When the full yarn request signal is issued, the conveyor 3 and sub conveyor 8
is driven, and one full yarn 2b is transferred to the sub-conveyor 8.
When the transport conveyor 3 moves by one peg interval, the light reflection sensor 23 located under the picker 11 for removing the full yarn is placed near the end of the transport conveyor 3. An empty peg 5 is detected and the conveyor 3 is stopped. Full tube yarn 2 placed on sub-conveyor 8
b is transferred obliquely upward and supplied to the peg 10 waiting at the bottom of the chute 7 via the chute 7, and a light reflection sensor 22 installed between the peg 10 and the chute 7 detects the full tube. 2b
is detected, the full yarn request signal is canceled, and the sub-conveyor 8 is stopped.

Therefore, in this conventional device, after the full yarn request signal is issued, the full yarn 2b waiting at the end of the conveyor 3 is transferred onto the sub-conveyor 8, and is transferred diagonally upward to the winder 6. Therefore, a considerable time interval is required until the supply of the full yarn 2b ends and the next full yarn request signal can be issued. When winding a thin thread of about 40 thread count with the winder 6, it takes a lot of time to wind it, so there is no problem even if the full tube yarn 2 is supplied to the winder 6 at relatively long time intervals, When winding a thick yarn, it is necessary to supply the full yarn 2 to the winder 6 at short time intervals. It interferes with the driving of 6.

A possible countermeasure to this problem is to increase the speed of the sub-conveyor 8, but in that case, the delivery of the full-tube yarn 2 to the sub-conveyor 8 and the transfer of the full-tube yarn 2 on the sub-conveyor 8 become unstable.

In addition, due to troubles with the automatic tube changing device of the spinning machine, a so-called missing weight, in which a full yarn is not placed on the peg 5 of the conveyor 3, may occur. Since the conveyor 3 stops after moving by one peg interval, when a full yarn request signal is issued when there is a missing weight at the end of the conveyor 3, the full yarn 2 is not supplied from the conveyor 3 to the sub-conveyor 8. Therefore, winder 6
Because the full yarn 2 is not supplied to the chute 7 forever and the full yarn request signal is not released, the full yarn 2 must be supplied to the chute 7 as soon as it is obtained, which greatly prevents automation.

Purpose of the invention The present invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology.The purpose of the invention is to use a simple configuration to immediately and reliably supply full yarn to the winder after receiving a full yarn request signal from the winder. In a very short time interval,
An object of the present invention is to provide a pipe yarn supply device from a spinning machine to a winder, which can supply full pipe yarn to a winder.

Structure of the invention That is, in the present invention, the full yarn extracted from the pegs on the conveyor is supplied to the winder at one end of an endless conveyor provided along the longitudinal direction of the spinning machine. A device in which a sub-conveyor is arranged to carry out the yarn to the chute, and when a full yarn request signal is issued from the winder, the sub-conveyor and the transport conveyor are driven to supply the full yarn from the end of the sub-conveyor to the chute. A full yarn detection device is provided near the end of the sub-conveyor, and the transport conveyor and the sub-conveyor are driven by a full yarn request signal from the winder, and the full yarn request signal is canceled and the detection device The above object is achieved by providing a conveyor drive circuit that stops the sub-conveyor and the transfer conveyor upon detection of a full yarn.

Example Hereinafter, examples 2 to 7 that embody the present invention will be described.
The figure will be explained in detail.

As shown in FIG. 2, endless transport conveyors 3 are installed at the lower left and right sides of the spinning frame 4 so as to extend along the longitudinal direction of the spinning frame 4 so as to be able to be driven intermittently. Sometimes, an automatic tube changing device (not shown) exchanges the empty bobbin 1 on the conveyor 3 with the full yarn 2 on the spinning machine spindle (not shown). The conveyor 3 is driven intermittently until the next full tube, and empty bobbins 1 are supplied from their starting ends via the shutter 12 and the reserve device 13, and each full yarn 2 is transferred to the conveyor 3. It is transferred to the terminal side with intermittent driving. The full yarn 2 after being pulled out by the picker 11 for removing the full yarn at the end of the conveyor 3 is sent to the winder 6 via a sub-conveyor 8 and a chute 7 installed diagonally adjacent to the conveyor 3. It will be transported to In addition, winder 6
The empty bobbin 1 discharged when the yarn is used up is returned to the shooter 12 of the spinning frame 4 by an appropriate transport means (not shown).

In this embodiment, two light reflection sensors 31 and 32 for detecting the full yarn 2 are installed at the upper part of the sub-conveyor 8 on the side of the full yarn passing position. are arranged at short intervals, and as shown in FIG.
After being supplied, the next full yarn 2b is transferred to the upper part by the sub-conveyor 8, and when it is detected by both the sensors 31 and 32, the conveyor 3 and the sub-conveyor 8 are stopped.

Next, the operation of the pipe supply device in this embodiment constructed as described above will be explained with reference to FIGS. 3 to 7.

FIG. 4 shows a full yarn request signal R from the winder 6.
At the top of the sub-conveyor 8, the full-tube yarn 2a, which will be supplied next to the chute 7 of the winder 6, is waiting at a position where the sensors 31 and 32 are blocked. Fully thread 2b is waiting. At this time, the sensors 31 and 32 are in the full yarn detection state, and the contacts PH31 and PH31 of the sensors 31 and 32 of the circuit and the circuit shown in FIG.
PH32 is closed, relays CR47 and CR48 are energized, and normally closed contacts CR47 and CR48 of the first circuit are open.

In this state, as shown in FIG. 5, when an empty peg 10 is transferred under the chute 7 by the conveyor 9 of the winder 6, the sensor 21 detects this and outputs a full yarn request signal R, and Normally open contact R
is closed, relay CR45 is energized, and normally open contact CR45 of the first circuit is closed. and relay CR41
is energized, the normally open contact CR of the first circuit and the second circuit
41 is closed, conveyor driving relay M3 and sub-conveyor driving relay M8 are excited, and conveyor 3 and sub-conveyor 8 are activated.

When the sub-conveyor 8 is started, the full yarn 2a waiting at the top of the sub-conveyor 8 moves in the direction of the chute 7, and the sensors 31 and 32 become non-detecting states, causing the normal state of the first and second circuits to become non-detecting. Open contact PH3
1.As PH32 opens, relay CR47,
CR48 is demagnetized and the normally closed contact CR4 of the first circuit
7,48 closes. Next, as shown in FIG. 6, when the full yarn 2a is inserted into the empty peg 10 through the chute 7, the sensor 22 detects this and the winder 6
The full yarn request signal R from is released, and
Normally open contact R of the first circuit opens, relay CR45 is demagnetized, and normally open contact CR45 of the first circuit opens.
In this state, current is flowing through the normally closed contacts CR47 and CR48, so relay CR41
continues to be energized, the first circuit, relays M3 and M8 of the first circuit maintain the energized state, and conveyor 3,
The sub-conveyor 8 continues to be driven. Therefore, the full yarn 2C at the end of the conveyor 3 is transferred to the sub-conveyor 8.
At the same time, the full-tube yarn 2b, which was in the middle of the sub-conveyor 8, is transferred upward.

Next, as shown in FIG. 7, when the full yarn 2b reaches the top of the sub-conveyor 8, the sensors 31 and 32 enter the full yarn detection state, and the normally open contacts PH31 and PH32 of the first and second circuits close. Relay CR47, CR
48 is energized and normally closed contact CR47 of the first circuit,
CR48 opens and relay CR41 is demagnetized. Therefore, the normally open contact CR41 of the first circuit and the second circuit is opened, the relays M3 and M8 are demagnetized, the conveyor 3 and the sub-conveyor 8 are stopped, and the state returns to the state of waiting for the next full yarn request signal R.

At this time, the full yarn 2b to be supplied to the winder 6 next is waiting at the top of the sub-conveyor 8, and the full yarn 2c is waiting in the middle of the sub-conveyor 8.

As described above, in this embodiment, even after the full yarn 2a is supplied from the sub-conveyor 8 to the winder 6,
The sub-conveyor 8 and transfer conveyor 3 continue to drive,
Since the conveyor 3 and the conveyor 8 stop when the next full yarn 2b to be supplied reaches the top of the sub-conveyor 8, when the next full yarn request signal R comes, the top of the sub-conveyor 8 The full yarn 2b can be reliably supplied to the winder 6 right away.

Furthermore, the sensors for detecting a full yarn at the upper part of the sub-conveyor 8 are two light-reflecting sensors 31 and 32.
If both of the two sensors 31 and 32 do not detect it, the full yarn detection state will not occur. Therefore, even if one of the sensors 31 and 32 detects the guide plate 14 on the sub-conveyor 8, the other does not, so the detection state does not occur. , 32 detect the full yarn 2 and enter the full yarn detection state.

Note that the present invention is not limited to the above-described embodiments; for example, if the sensor of the full thread detection device is positioned at an appropriate location where only full threads can be detected, only one sensor can be used. It's over. Furthermore, if the transport conveyor 3 and the sub-conveyor 8 are synchronized and the speed at which the sub-conveyor 8 moves by one guide plate interval is the same as the speed at which the transport conveyor 3 moves by one peg interval, each guide of the sub-conveyor 8 The fully loaded yarn 2 is placed on the plate 14 without interruption, and the time interval for supplying the fully loaded yarn can be further shortened. In addition, the present invention can be suitably applied to a device in which an empty bobbin supply device is provided on the full yarn discharge side of the conveyor 8, and the empty bobbin 1 is supplied to the conveyor 8 when changing the tube of the spinning machine 4.

Effects of the Invention As detailed above, in the present invention, a full yarn detection device is provided near the end of the sub-conveyor, and the transfer conveyor and the sub-conveyor are driven by a full yarn request signal from the winder. Since a conveyor drive circuit is provided that stops the sub-conveyor and the transport conveyor by canceling the yarn request signal and detecting a full yarn by the detection device, the next full yarn to be supplied to the winder will be stopped at the end of the sub-conveyor. You will have to wait. Therefore, when a full yarn request signal is issued from the winder, the full yarn at the end of the sub conveyor is immediately supplied to the winder by just a slight drive of the sub-conveyor, and the full yarn can be supplied to the winder in a short time interval. This method can sufficiently handle cases where thick yarn is used, the time required to wind the full yarn in the winder is short, and the interval between full yarn request signals is short.

In addition, even if the peg on the conveyor is missing a full yarn, the conventional device will not supply the full yarn to the winder forever, and the full yarn must be manually fed to the winder. However,
According to the present invention, the conveyor only stops when a full yarn is detected near the end of the sub-conveyor.
The above-mentioned troubles can also be resolved, greatly contributing to automation.

[Brief explanation of drawings]

Fig. 1 is a side view of a conventional device, Fig. 2 is a side view of an embodiment of the present invention, Fig. 3 is an electric circuit diagram of the embodiment, and Figs. 4 to 7 are side views showing the operating state of the embodiment. be. 1...Empty bobbin, 2...Full yarn, 3...Transport conveyor, 4...Spinning machine, 5...Petsug, 6...Winder, 7...Full yarn supply chute, 8...Sub conveyor, 31, 32...Full yarn detection device.

Claims (1)

[Scope of utility model registration request] A sub-conveyor is arranged at one end of an endless conveyor provided along the longitudinal direction of the spinning machine to carry out the full yarn extracted from the pegs on the conveyor to the full yarn supply chute of the winder. , in a device that, when a full yarn request signal is issued from the winder, drives the sub-conveyor and the transfer conveyor to supply the full yarn from the terminal end of the sub-conveyor to the chute; A full yarn detection device is provided, and a full yarn request signal from the winder drives the transport conveyor and the sub-conveyor, and the full yarn request signal is canceled and the full yarn detection device detects the full yarn to drive the sub conveyor. A pipe yarn supply device from a spinning machine to a winder, characterized in that a conveyor and a conveyor drive circuit for stopping the transport conveyor are provided.