JPS63295379A - Control system for pick finding - Google Patents

Abstract

PURPOSE:To reduce the possibility or a miss in pick-finding and to prevent the yarn layer of a bobbin from being damaged, by operating a heater device, irrespective of the presence of a bobbin which is missed in pick-finding, when special bobbins are successively fed into a pick finder. CONSTITUTION:During normal pick-finding operation, a beater device 23 in a station D is not operated for a bobbin 2 which passes through a pick finder at first, while it is operated for a bobbin 2d which passes through the pick finder more than twice due to a miss in pick-finding. Further, a large number of incomplete bobbins 2d which are produced during rot-change passes through the station D for the pick finder, the beater device 23 is operated for the bobbin at first time. Then the bobbin 2d is rotated in the slacking direction while a contact piece 22 is turned so as to slide in a chess section 27, and pick-finding and absorbing are carried out by use of air streams from lower nozzles 48, 49 and suction by a suction pipe 14. Thus yarn Y1 after pick-finding and absorbing is transferred to a station E and is cut. Thus, it is possible to reduce the possibility of a miss in pick-finding.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a yarn end feed control system.

[Conventional technology]

The spinning bobbin produced by the spinning machine is unwinded from the punch winding and subjected to a process of pulling out a certain length of yarn end before being fed to the next rewinding process, that is, an automatic wine gourd. For this reason, a thread end feed device is generally provided on the bobbin supply side of an automatic wine gourd.

There are two types of punch winding: a top punch in which the thread is wound around the head of the bobbin, and a bottom punch in which the thread is wound around the bottom of the bobbin.In either case, the punch winding is released in the pick-up device. After the yarn is removed or removed, a certain length of yarn end is pulled out from the yarn layer and inserted into the center hole of the bobbin, or lightly wound several times on the surface of the yarn layer, or the bobbin is inserted into the bobbin storage magazine. Then, the process of sucking and holding the yarn end in the suction tube at the center of the magazine is selected depending on the type of wine goo.

[Problem that the invention seeks to solve]

There are various types of bobbins supplied to the above-mentioned pick-up device, such as bobbins with the above-mentioned punch winding in a predetermined position, full-wound bobbins without punch winding, and bobbins due to product change in the spinning machine. Various bobbins are supplied to the pick-up device, such as a large number of half-bobbins generated during lot changes, and bobbins with remaining threads discharged from the automatic wine goo, in the case of a type in which the bobbins with remaining threads are supplied again to the wine goo.

Therefore, in the pick-up device, it is necessary to perform pick-up processing in accordance with each type of bobbin.

The present invention aims to solve the above problems.

[Means for solving problems]

In the present invention, during a normal picking operation, the beater device is turned on or off depending on whether or not a bobbin is picked out incorrectly, and when half bobbins are continuously supplied to the picking device, the beater device is turned on. It is something.

[Effect]

During normal pick-up operation, the beater device does not act on bobbins passing through the pick-up device for the first time, but the beater device acts on bobbins that pass through the pick-up device for the second time or more, and this problem occurs during lot changes. When a large number of half-bobbins pass through the pick-out device, the above-mentioned sorting action of the Peter is stopped and the beater device is started from the first bobbin.

〔Example〕 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 8 shows an example of a so-called top punch punching device in which a punch winding is formed on the head of a hobbin.

The conveyance path (3) of the bobbin (2) attached to the tray (1)
) (3a) An annular transfer path (4) is provided in the middle of (3a),
The receiving station (A) position of the annular transfer path (4) is connected to the carry-in path (3), and the bobbin discharging station (F) position of the annular transfer path (4) is connected to the carry-out path (3a), Part of the circular transfer path, i.e. station (A)-+
Station (F) is used as a passage for processing the uncoupled bobbin, and the remaining passages, that is, stations (F), (G), and (H) are used as passages for feedback of the uncoupled bobbin.

The spun bobbin (2) is inserted into the tray (1) and is transferred along the conveyance path (3) in the direction of the arrow (5) to reach the receiving position (A) of the pick-out device. Tray receiving parts (7) formed at regular pitch intervals on the rotary plate (6) of the feeder.
The bobbin (2) received by the arrow (
8) With the intermittent rotation in the direction, each processing station (B
) (C) (D) (E) The bobbin (2S) that has been successfully taken out is transported in the direction of the arrow (9) along the transport path (3a) toward the wine goo.

A cutter device for unscrewing the bottom punch is installed in the station (B) only when handling a bobbin with a bottom punch, but in this embodiment, since only the top punch is handled, the cutter device is installed. Instead, the bobbin only waits at station (B).

At the station (C), a searcher mechanism is installed to search for the yarn during normal winding of the bobbin (2) on the surface of the yarn layer, which is called backwinding, and the backwind is brought up from the surface of the yarn layer.

Next, at the station (D), a top punch loosening/suction device (12) is installed. For example, a pair of rollers (13a) (1
3b) is provided with the rotation axis slightly inclined, and the roller (1
3a) The top punch is released by the rotation of (13b), and the thread coming out of the bobbin head is sucked into the suction pipe (14) having an opening near the bobbin head.

Furthermore, the station (E) is provided with a thread end insertion mechanism (16) that cuts the thread pulled out from the bobbin into a certain length and inserts the thread end into the center hole (15) of the bobbin (2). It will be done.

That is, the bobbin (2) positioned at the station (E)
e) and the slit of the suction vibe (14) (17)
The thread (Y2) connected in between takes a certain single thread path due to the tension caused by the suction force. A cutter device (18) into which the yarn is naturally introduced when taking the yarn path, and a yarn sensor (19) are arranged at a set position from the upper end of the bobbin.

Note that as the sensor (19), a photoelectric sensor, a capacitive sensor, a sensor using a piezoelectric element, a whisker type microswitch, etc. can be applied, but the responsiveness and
A photoelectric sensor is preferable in terms of durability, reliability, etc.

Next, the beater device provided at the station (D) will be explained. In Fig. 1, near the bobbin (2d) of the station (D), there is a support shaft (21) inclined at an angle (θ) with respect to a virtual straight line (20) parallel to the axis of the bobbin (2d).
A beater device (23) is provided, to which a contact piece (22) having a large friction coefficient is fixed, and a drive mechanism that allows the support shaft (21) to move along a fixed trajectory.

The contact piece (22) is made of a flexible rubber plate as shown in Fig. 6, or a brush (24) with short bristles fixed to the end of the rubber plate, or as shown in Fig. 7. A contact piece (26) that easily follows the bobbin shape by forming a plurality of grooves (25) on the thread layer contact side end of the contact piece to which the brush (24) is fixed can be used.

Further, it is sufficient that the inclination angle (θ) of the support shaft (21) is approximately equal to the taper angle (θ1) of the chess portion (27) as shown in FIG. That is, when the support shaft (21) is rotated in parallel, the angle (θ
). In other words, as shown in Figure 5, the cost is $111.
When (21) is rotated along the elliptical trajectory (28), the contact piece (22) acts to hit the chess piece (27) slightly from below to above. Therefore, one point (P) of the contact piece (22) acts to slide upward on the surface of the yarn layer as shown by the arrow (29) due to the rotational movement, making it easier to search for yarn ends mixed in the chess part.

Figure 2.3 shows the - of the drive mechanism (30) of the support shaft (21).
Give an example. A drive shaft (32) and a freely rotating shaft (33) are supported on the fixed frame (31) which is inclined with respect to the horizontal plane by the above-mentioned angle (θ). The above drive shaft (3
2) is rotated by a drive source such as a motor (34), a salt lever (35) is fixed to the shaft (32), a long lever (36> is pivotally supported to the one-sided shaft (33), The swing arm (
37) is pivoted at two places (38) (39).

The support shaft (21) is fixed to the end of the swing arm (37). (22) is a contact piece.

Also, the bottle (40) of the frame (31) and the lever (36)
) A spring (42) is applied between the pins (41) on the top (41) to urge the lever (36) counterclockwise.

Therefore, as shown in Fig. 4, the lever (35) is connected to the shaft (32).
When rotated in the direction of arrow (43), the swinging arm (
37) is a dashed dot line (37a) and a dashed double dotted line (37b)
Draw a roughly elliptical trajectory with the position as the turn part, and move the arm (3
The tip of the contact piece (22) contacts the chess part (27) of the bobbin while tracing an elliptical trajectory (44) via the support shaft (21) fixed to the shaft (21).

In such an apparatus, at the station (D), the bobbin (2d) is connected to the drive roller (45) as shown in FIG.
) is rotated in the direction in which the thread is unraveled (Fig. 4<46)), and the contact piece (22) moves in the direction of the arrow (44), causing the thread layer of the chess part (27) to be rotated. As shown in Fig. 1, the mixed thread ends become entangled in a thread mass (47), and the air flow ejected from the nozzles (48) (49) from below and the suction action of the suction pipe (14) from above. Due to the interaction, the thread mass (47) is sucked into the suction pipe (14) and the thread is pulled out.

That is, as shown in FIG. 8, the yarn (Yl) let out at the station (D) moves along the sleeve (17) of the suction pipe (14) and becomes connected to the bobbin (2d). Next, by one pitch rotation of the rotating body (4), the bobbin (2d) of station (D) is moved to station (E), and as described above, the cutter (18) is operated and the suction pipe ( The yarn end (Y3) cut by the suction airflow generated in the bobbin center hole (15) by 50) is inserted into the bobbin center hole (15) and hangs down.

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 is placed on the tray as a bobbin for supplying to the wine goo. It is delivered onto the conveyance path (7).

In this embodiment, the bobbin that has failed to be dispensed is not dispensed even when it reaches the station (F), but instead reaches the station (A>) via the bypass stations (G) and (H) again. As mentioned above, when the yarn detection device of station (E) detects the absence of yarn, the movable guide (Fig. 8 (
51)) to position (51a),
If one bobbin continues to fail to eject the vagina, the bobbin that cannot eject the vagina will have to endlessly link stations (A) to (H), which is inefficient.

Therefore, in this embodiment, when the number of failures in unloading a particular bobbin reaches the set number, the movable guide (27) is not operated and the transfer path (3) is moved from the station (F) to the conveyance path (3).
a) It is designed to be paid out upwards. That is, a bypass circuit is provided that can track the bobbin that has failed to be picked out. Furthermore, each station (A) (B) (C) (D
) The beater device at station (D) acts only on the bobbin passing through (E'') and beats the surface of the yarn layer to promote the winding.

Next, the bobbin tracking device will be explained with reference to FIGS. 9-11.

In Figure 9, the bobbin receiving groove is divided into eight equal parts.
0 (Port Q) to port 7.

A station (
The bobbin receiving groove in position E) is designated as port 0, and the ports 1 to 7 are located in the opposite direction to the rotation of the rotating plate. Further, in FIG. 11, 0 to 7 of the shift register (52) correspond to ports 0 to 7. Please note that bypassing is limited to two times, and bobbins that have failed to be picked out three times are transferred to the conveyance path (
3a), counters (CO) to (C7) corresponding to each shift register O to 7 are set to "3".

If you make a mistake in making a mistake in the situation shown in Figure 9, you will receive a soft register (
88) starts from 0, so the contents of the counter (CO) will be "1" under the AND condition of register 0 and the input miss signal.
becomes. At the same time, the solenoid (SO) for the movable guide (51) is driven by the feed error signal to bypass the bobbin.

Next, as shown in Fig. 10, when the rotary plate (6) advances one pitch, the shift register advances to register 1 by the rotation signal (S) of the rotary plate, and if there is a mistake in inputting here, the counter (
The content of C1) becomes "1". Therefore, in this case as well, the thread/id (SO) is driven to bypass the lead-out mis-bobbin, as described above.

Rotating plate (6) rotates and port 0 becomes station (D)
When it reaches the position, it is judged that the above-mentioned lead-out error bobbin has reached the station (D) position, and the beater motor (third
(34)). Furthermore, when port 0 comes to the output error detection section, the shift register returns to register 0, and if an input error occurs here, the contents of the counter (CO) are incremented by "1" and become "2". In this case as well, the solenoid (SO) is driven to bypass the bobbin that missed the second pick-up again.

In this way, the contents of the counter (CO) are changed to the set value "3".
'', the output of the counter (CO) is set as a solenoid drive prohibition signal, the bobbin is delivered to the transport path (3a), and the counter (CO) is reset.

However, if the pick-up is successful for the second or third time, the counter that matches the boat is reset by the AND condition of the shift register and the pick-up success signal (Sl), and the solenoid (SO) is not driven at the same time. Therefore, the successfully delivered bobbin is delivered onto the conveyance path (3a).

In this way, the bobbin can be chained along the rotary plate and subjected to the picking operation until the number of picking errors reaches the set number.

Further, in the above embodiment device, when the bobbin to be supplied is a half-ball bobbin, the beater device provided at the station (D) is controlled to be in an on state, and the beater device provided at the station (D) is controlled to be in an on state.
The peaking device is controlled so that it acts on all bobbins, regardless of whether they are used for the first or second time. That is, when the loft is changed in the spinning machine, a large number of half-bobbins are produced, and therefore a large number of half-bobbins are supplied to the feeder.

Next, a flowchart for the above operation is shown in FIG.

It is determined whether the bobbin being fed to the pick-up device is a normal bobbin or a half-weld bobbin due to a lot change (step ■), and if it is a normal bobbin, it is determined whether the first pick-up was successful or not (step ■ ), in the case of a wrong bobbin, increase the number of leading mistakes by +1 and step ■), the above number of leading mistakes is the upper limit of the number of leading mistakes bypass (N)
(Step ■), and for bobbins whose number of unloading errors is equal to the upper limit value, or for bobbins that have been successfully unloaded, the number of unloading errors is zeroed out (Step ■), and the bobbins are transported to the unloading station (Fig. 8 (F)). On the other hand, the bobbins whose number of unloading errors has not reached the upper limit are transferred to the bypass circuit (L2) (step ■), and at the same time, the number of unloading errors of the bobbins with unloading errors reaches the beater. - It is compared with the number of missed pick-up bypasses (M), which is the motor drive condition (step ■), and the bypass number (M) of the bobbin supplied to the pick-up device for the first time as described above is zero, so the number of missed pick-up times = 1. 〉0, the beater motor drive condition is satisfied and the beater motor is instructed to be driven (step ■).
. - For bobbins in which the blade has been successfully ejected, the number of times the blade has been ejected incorrectly is zero, and the beater motor drive condition (step ■) is not satisfied, so the beater motor remains OFF.
(Step ■).

On the other hand, in the case of a half-weld bobbin, that is, when a loft change command is issued from a spinning machine or an automatic wine goose, the beater is applied to the half-weld bobbin supplied by the loft change signal even during the first picking operation. - a beater motor (34
) is turned on (step O). In this state, the pick-up process is performed (step 0), and the number of missed pick-ups is tracked and managed for the bobbin in which the pick-up error occurred (step @), in the same way as for the normal bobbin. The number of lead-out mistakes is compared with the upper limit 1 (N) (step ■), and when it is equal to the upper limit (N), it is delivered from the station (F) to the conveyance path (3a), and the number of lead-out mistakes is zeroed out ( Step ■). - The bobbin that has not yet reached the upper limit of the number of times the blade lead-out mistake has been made is further transferred to the bypass passage (L2) (step 2) and subjected to the lead-out process again. Of course, the beater device also works during the second and third attempts.

〔Effect of the invention〕

As described above, in the present invention, the beater device is operated at a timing suitable for each case, depending on whether a normal bobbin is processed or a special bobbin such as a half-ball bobbin. It can reduce the occurrence of mistakes,
Furthermore, there is less risk of damaging the thread layer of the bobbin.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an example of a beater device installed in the feeding device, Fig. 2 is a plan view showing the drive mechanism of the beater device, Fig. 3 is a front view of the same, and Fig. 4 is the same. An explanatory diagram of the operation of the drive mechanism, FIG. 5 is a front view showing the relationship between the chess part and the contact piece, FIG. 6 is a perspective view showing an example of the contact piece, and FIG. 7 is a perspective view showing another example of the contact piece. , FIG. 8 is a schematic perspective view showing an example of a pick-up device, FIGS. 9 and 10 are explanatory diagrams showing a method for tracking a bobbin with a pick-out error, and FIG. 11 is a diagram showing an example of a circuit diagram for carrying out the method. , FIG. 12 is a flow chart diagram of Peter drive. (2)...Bobbin, <19)...Yarn sensor (23)...
・Beater device 12th

Claims (1)

[Claims] During normal picking operation, the beater device is controlled depending on whether or not there is a bobbin with a wrong lead, and when special bobbins are continuously supplied to the pick-up device, the beater device is operated regardless of whether there is a wrong bobbin. A yarn end feed control system characterized in that the yarn end feed control system is configured to