JPH0138750B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a yarn end processing device, and more particularly to a processing system in a spinning bobbin feed device.

[Conventional technology]

A spinning bobbin (hereinafter simply referred to as a bobbin) wound by a spinning machine, especially a ring spinning machine, is supplied to a winder in the next process and rewound into a certain amount of package. Bunch winding is applied to the upper or lower end of the winding tube at the center of the yarn layer in order to prevent sagging, and the above-mentioned bunch winding is unraveled before being fed to the winder, making it convenient for starting winding. The thread ends are pulled out. That is, a device generally called a pick-up device is provided near the winder, and the bobbin conveyed from the spinning machine is supplied to the winder via the pick-out device.

[Problem that the invention seeks to solve]

If a bobbin that has been successfully tapped by the winding device is fed to the winder, the yarn end that has been tapped and the yarn end on the winding package side will be automatically spliced and winding can be restarted. Even if the failed bobbin is fed to the winder, it cannot be spliced and is immediately discharged from the winding position without being rewound. Therefore, in the past, both bobbins that failed to pick up and bobbins that successfully pulled out were supplied to the winder in a mixed manner, causing a reduction in the efficiency of the winder.

The present invention aims to solve the above problem.

[Means to solve the problem]

The device of the present invention provides an annular transfer path in the middle of a bobbin conveyance path, a part of the annular transfer path is used as a passage for processing bobbins, and the remaining part of the annular transfer path is used as a feedback path for bobbins that have been undelivered. A bobbin that has failed to be picked out at the processing station is immediately transferred to the processing station via a feedback path without being ejected from the picking device.

〔Example〕

Embodiments of the device of the present invention will be described with reference to the drawings.

In FIG. 1, an annular transfer path L is arranged in the middle of the transport paths 2 and 7 of the bobbin 1, and a receiving station A position of the annular transfer path L is connected to the carry-in path 2,
The bobbin unloading station F position of the annular transfer path L is connected to the unloading path 7, a part of the path L1 of the annular transfer path is used as a first path for unloading processing, and the remaining path L2 is used for feedback of unloaded bobbins. This is the second passage for That is, the first passage L1 is a passage from station A to station F in the direction of arrow 6, and the second passage L1 is a passage that extends from station A in the direction of arrow 6 to station F.
2 is from station F to station A in the same direction.
It is a passageway leading to.

The spun bobbin 1 is inserted into the tray T and transported along the conveyance path 2 in the direction of arrow 3, and reaches the receiving position A of the pick-out device. Rotating plate 4 of the extraction device
The bobbin 1a received by the tray receiving part 5 fixed at regular pitch intervals is moved to each processing station B,
After passing through C, D, and E, we arrive at payout station F.
The bobbin 1s that has been successfully taken out is transported along the transport path 7 in the direction of the arrow 8 towards the winder.

The station B is provided with a cutter device 10 for untying and cutting the bunch winding 9 wound around the lower end of the bobbin, and the station C is provided with a cutter device 10 for untying and cutting the bunch winding 9 wound around the lower end of the bobbin.
A roller 11 is disposed to pull out the thread connected between the thread c and the cutter device 10 and lightly wrap it around the surface of the thread layer. At station B, the bobbin 1b is rotated by a friction roller in a direction 12 for unwinding the wound yarn, and at station C, the bobbin 1b is rotated by a roller 11 in a direction 13 for winding. Further, at station D, a yarn end suction/untying device 14 is arranged to suction/unravel the yarn end in a free state.
For example, a suction mouse 1 with a slit 15
Consists of 6. At this position, the bobbin 1d
is rotated by a friction roller 17 in a direction 12 for unraveling the yarn. Furthermore, the station E is provided with a thread end insertion mechanism 19 that cuts the thread pulled out from the bobbin to a certain length and inserts the thread end into the center hole 18 of the bobbin 1e.

Note that the bobbin tray T in this embodiment is the third
As shown in the figure, a base part 21 and a peg 22 for bobbin insertion are integrally formed on a disc-shaped base 20, and a hollow part 23 opening at the bottom is formed inside, and the peg 22 has air passage holes. 24 is bored, and by applying a suction air flow in the direction of arrow 25 inside the tray T, a suction force 26 is applied to the bobbin center hole 18 through the air passage hole 24.

FIG. 2 shows a plan view of the bobbin processing station. The tray TA with the bobbins inserted that has reached the receiving position A passes through the processing stations B to E by intermittent rotation of the rotary plate 4 at 45-degree intervals in the six directions of arrows, and when it reaches the unloading position F, the bobbins that have been successfully ejected are placed in the tray TA. is conveyance path 7
However, the bobbin that failed to be ejected is blocked by the movable guide 27a, and is subsequently discharged to the passage L2.
After that, the machine reaches the pick-up processing acceptance position A again and repeats the same operation as described above. That is, a sensor for detecting the pick-up yarn end is provided in the processing station E, and when the sensor detects that there is no yarn, the movable guide 27 in FIG. 2 moves to position 27.
A is positioned by a rotary solenoid 28 or the like to prevent tray Tf from being delivered when it reaches position F.

In addition, in FIG. 2, processing stations B,
Friction rollers 29, 11, 17 and a drive source 30 that rotate the bobbin at each position are shown in C and D. An endless belt 32 is placed between the output pulley 31 of the motor 30 and each roller 29, 11, 17, and as the belt 32 rotates in the direction of arrow 33, each roller 29, 11, 17 rotates in a predetermined direction. . The rollers 29 and 17 contact and rotate the trays Tb and Td in a direction that unravels the thread on the bobbin, and the roller 11 rotates the tray Te in a direction that winds the thread. Further, each of the rollers 29, 11, 17 is connected to a lever 3 which can swing freely around fixed shafts 34, 35, 36.
Therefore, due to the tension of the belt 32, the levers 37, 38, 39 having respective rollers are biased in the direction of bringing the rollers into contact with the circumferential surface of the base of the tray. acts to ensure sufficient frictional force with the tray. 40
is a tension pulley.

In Figures 4 to 6, the vertically extending shaft 7
A rotary plate 4 is fixed at equal pitches around the receiving grooves 5a to 5h of the tray, and a guide surface 77 is concentric with a virtual outer circumferential surface 76 of the rotary plate 4 with a gap therebetween.
Outer guide plates 78 and 79 having the following shapes are fixed to the main body frame, and a tray transfer path is constituted by the receiving grooves 5a to 5h, the guide plates 78 and 79, the plate 80, and the like.

The tray receiving grooves 5a to 5h are formed by approximately semicircular portions of a circle having a diameter approximately equal to the diameter of the tray, and in the case of this embodiment, the tray receiving grooves 5a to 5h are
It is formed in 8 locations at 45 degree pitch.

Further, rollers 81 are provided at two positions around each of the receiving grooves for smoothly positioning the tray and rotating the tray at the processing station.
81 pairs are provided on the shafts 82,82. The contact surfaces of the rollers 81, 81 with the tray protrude slightly from the circumferential surface 83 of the receiving groove, so that the outer circumferential surface of the tray and the inner circumferential surface of the receiving groove do not come into full contact.

A guide plate 85 having a gap above the rotating plate 4 and having arcuate grooves 84a to 84h formed at the same positions as the receiving grooves is connected to the shafts 82 of the rollers 81, 81,
As shown in FIG. 12, arcuate grooves 84a to 84h are located in the base portion 21 of the tray T to prevent the tray from tipping over or flying upward during transportation.

In addition, in FIG. 4, a plate 8 having a smooth surface with a thickness substantially equal to the thickness of the tray conveyor 87 on the bottom plate 86 is provided on the tray conveyor path.
0 is fixed, so that when the station A is transferred from the conveyor 87 toward the station B, smooth transfer is performed.

Next, the ejecting action of the ejecting device having each of the above mechanisms will be explained.

In FIG. 11, the tray Ta carrying the bobbin 1a, which has been transferred in the direction of arrow 3 on the conveyor 87, passes in front of the phototube sensor PS and waits at the tray receiving station A position on the rotary plate 4. It enters the groove 5a. phototube sensor
When the PS detects the passage of the tray, the rotary plate 4 rotates by one pitch in the direction of arrow 6 with a certain time delay via a timer. That is, since the rotary plate does not move unless the phototube sensor PS detects the passage of the tray, the tray is always received in the receiving grooves 5a to 5e of the stations A to E of the rotary plate 4. , each tray receiving section 5A is empty.
It never appears in ~E. Note that the reception grooves 5g and 5h after the dispensing station F may be empty or have a tray present, depending on the case. That is, in the apparatus of the above embodiment, as will be described later, a bobbin whose yarn end has been mistaken out is not delivered from the delivery station F onto the conveyor 87, but is immediately returned to the receiving station A via the stations G and H, and is then returned to the receiving station A again, and is returned to the receiving station A again via the stations G and H. The control device controls the bobbin so that it is given priority to the bobbin of 1 and receives the effect of the pick-up process again.

The bobbin 1b that has arrived at the processing station B is cut by the cutter device 10 by untying the bunch winding wound around the lower end of the bobbin.

Subsequently, the bobbin of station B is transferred to the station C position, and at this position, the friction roller 11 contacts the tray Tc, and the bobbin 1c is rotated in the thread winding direction via the tray.
The unraveled thread between the cutter 10 of the front station B and the cutter 10 of the bobbin 1c is wound around the surface of the thread layer of the bobbin 1c. Note that winding the thread end in this case does not mean grasping the thread end and actively winding it around the bobbin, but simply winding the free thread passively and lightly by the rotation of the bobbin. Just by turning the yarn, it will not be wound so tightly that it will be difficult to pull out the yarn end at the next station.

Subsequently, the bobbin 1d that has reached the station D is rotated in the direction in which the thread is unraveled by the contact between the friction roller 17 and the tray Td, and
The thread ends are loosened and suctioned by a suction mouth 16 located close to the surface of the thread layer. The pulled out thread moves along the slit 62 shown in the first figure, and the thread crosses between the station D and the slit.

Next, when transferred from the bobbin station D to the station E, the drawn-out yarn Y3 enters the cutter device 60 through the guide plate 6 as shown in the first figure.
4 to activate the built-in yarn detection feeler. At this time, the station E tray
A suction airflow is generated in a suction pipe (not shown) disposed below Te, and the thread end cut at the cutter 60 position is sucked and inserted into the bobbin center hole 18, completing the thread end pulling process.

Therefore, the bobbin that has arrived at station F has a certain length of yarn end hanging down from the bobbin head into the center hole, and the bobbin is placed on the tray and there is no transport path for supplying it to the winder. 7 is paid out.

In addition, in this embodiment, as described above, the bobbin that has failed to be ejected is not ejected even if it reaches station F, and reaches station A again via bypass stations G and H. When the thread detection device of station E detects the absence of thread, simply moving the movable guide (FIG. 2 27) provided in station F to position 27a will not work. are stations A~H
This is inefficient as it cycles through the process infinitely.

Therefore, in this embodiment, when the number of failures in unloading a particular bobbin reaches a set number, the bobbin is unloaded from the station F onto the conveyance path 7 without operating the movable guide 27.
That is, a bypass circuit is provided that can track the bobbin that has failed to be picked out.

In FIG. 7, the bobbin receiving grooves divided into eight equal parts are named port 0 (Port0) to port 7. For now, the bobbin receiving groove located at the station E position having the thread detection feeler 60a is designated as port 0, and the ports 1 to 7 are designated in the opposite direction to the rotation of the rotary plate. Further, in FIG. 9, 0 to 7 of the shift register 88 correspond to ports 0 to 7. In addition,
Bypassing is allowed up to two times, and when a bobbin that has failed to be picked out three times is discharged to the conveyance path 7, counters C0 to C corresponding to each shift register 0 to 7 are used.
Set 7 to "3". Now, if the input is missed in the state shown in FIG. 7, the shift register 88 starts from 0, so the content of the counter C0 becomes "1" under the AND condition of the register 0 and the input miss signal.
At the same time, due to the input error signal, the movable guide 2
Drive the solenoid for No. 7 to bypass the bobbin.

Next, as shown in FIG. 8, when the rotary plate 4 advances by one pitch, the shift register advances to register 1 by the rotary plate movement signal S, and if there is an input error here, the content of the counter C1 becomes "1". . Therefore, in this case as well, the solenoid is driven to bypass the lead-out mis-bobbin, as described above.

When the rotating plate 4 moves by 1 and port 0 comes to the input error detection section again, the shift register changes to register 0.
Returning to step 1, if a mistake is made here, the contents of the counter C0 are incremented by "1" and become "2". In this case as well, the solenoid is driven and the bobbin that failed to be picked the second time is again bypassed.

In this way, when the content of the counter C0 reaches the set value "3", the output of the counter C0 is set as a solenoid drive prohibition signal, the bobbin is delivered to the transport path 7, and the counter C0 is reset.

However, if the offer is successful on the second or third time, the shift register and the offer success signal S1
According to the AND condition, the counter corresponding to the port is reset, and at the same time, the solenoid is not driven, so the successful bobbin is delivered onto the conveyance path 7.

In this way, the bobbin can circulate along the rotary plate and receive the picking operation until the number of picking errors reaches the set number.

It should be noted that if a bobbin that has once been mislead is simply subjected to the regular threading process again, there is a high possibility that the bobbin will be misleaded again. For this reason, for example, when bypassing, station G or station H
In this method, a correction device is used, such as a serrated searcher that touches the surface of the yarn layer of the bobbin to search for the yarn end, or an elastic plate-like body that hits the surface of the yarn layer to make it easier to separate the yarn end from the yarn layer. It is effective to provide In this case, since the bobbin that has been successfully pulled out the first time is not affected by the correction device, the surface of the thread layer of a normal bobbin will not be damaged.

〔Effect of the invention〕

As described above, in the present invention, a bobbin that fails to be picked out is not discharged from the picking device, but is immediately transferred to the picking processing station via the feedback path, and is subjected to the picking operation again.
The success rate of picking is high, the possibility of supplying a bobbin with a wrong lead to the winder is reduced, and the transfer efficiency of the winder can be increased.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view showing an embodiment of the device of the present invention, FIG. 2 is a plan layout diagram thereof, FIG. 3 is a cross-sectional front view showing the structure of a tray applied to this embodiment, and FIG. A side view showing the arrangement of the suction mouse, FIG. 5 is a plan view showing an embodiment of the rotary plate for transferring the tray, FIG. 6 is a cross-sectional side view of the same, and FIGS. 7 and 8 are the bypass operation of the miss bobbin Fig. 7 is a diagram showing an example of a rotary plate provided with a port, Fig. 8 is a diagram showing the rotary plate rotated by one pitch, and Fig. 9 is a circuit diagram for bypass operation. . 1...spinning bobbin, T...tray, 2,7...
Transfer path, 9...bunch winding, 10...cutting device,
14... Yarn end outlet mechanism, 19... Yarn end insertion mechanism, 60a... Feeler, L... Annular transfer path, L
1...First passage for yarn end treatment, L2...Second passage for feedback.

Claims (1)

[Scope of Claims] 1. A rotating plate having a plurality of tray receiving grooves formed at equal pitches around the circumference of a bobbin transport conveyor that conveys bobbins inserted into trays, and a virtual outer circumferential surface of the rotating plate. A tray annular transfer path formed by the rotary plate and an outer guide plate having a concentric guide surface is disposed with a space between and . A bobbin unloading station position of the annular transfer path is connected to the bobbin loading path side of the conveyor, and a bobbin unloading station position of the annular transfer path is connected to the bobbin transport path side of the bobbin transport conveyor. A bobbin thread end delivery mechanism is disposed along the passage, and the passage from the bobbin delivery station of the annular transfer path to the bobbin receiving station is used as a second passage for feedback of the bobbin that has not been delivered, and the bobbin delivery station includes: 1st above
without discharging the mis-picked bobbin from the annular transfer path to the bobbin discharging path side of the bobbin transport conveyor based on a pick-up error signal from the pick-up yarn end detection feeler provided in the yarn end picking mechanism in the passage.
A yarn end processing device characterized in that a movable guide is arranged to guide the yarn to a second path for feedback.