JPS61155171A - Thread end pick finding device - Google Patents

Abstract

PURPOSE:To aim at preventing a thead layer and a spool from being damaged, by making the rotary roller into contact with a tray at a cut station for punch winding, and at a pick finding station, without the rotary roller being made into contact with the yarn layer and the spool. CONSTITUTION:A bobbin which is cut and released from its punch winding condition at a station B is transferred to a station C. A bobbin 1c is rotated in a thread winding direction by means of a tray TC abutting against a friction roller 11, and therefore, the released thread stretched between the bobbin 1c and a cutter 10 in the station B is wound on the outer surface of thread layer of the bobbin 1c. Then, the bobbin 1d having arived at a station D is rotated in the direction in which the thread is unwound due to that a friction roller 17 is made into contact with a tray Td, and the thead end is released and sucked into a suction mouth 16. With this arrangement a bobbin may be rotated by a tray on which the bobbin is mounted upright in each station, and the rotary roller will not make into contact with the thread layer or the spool, thereby it is possible to prevent the thread layer of the bobbin from being damaged.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a yarn end pulling device for a spinning bobbin. Bunch winding is applied to the end of the winding tube at the center of the bobbin, and when such a bobbin is fed to an automatic wine gourd for the rewinding process, the bunch winding is unwound. For this reason, a pick-up device is installed near the wine goo.

On the other hand, as a means for conveying bobbins, there is a system in which bobbins are conveyed in a state where the bobbins are placed upright on separate and independent bobbin conveyance media (hereinafter referred to as trays) on a conveyance path.

[Problem that the invention seeks to solve]

The present invention provides the above-mentioned system with the ability to
To provide a device that makes it easy to unwind the thread when unwinding the thread, and also allows the thread to be pulled out without any contact with the thread layer of the bobbin, without damaging the thread layer or the winding tube. The present invention provides a device for performing a cueing operation.

・[Means for solving the problem] The device of the present invention includes a cutting station that unwinds and cuts the bunch winding, and a cutting station that unwinds and cuts the bunch winding, and a thread pick-up from the bobbin thread layer, along the path through which the bobbin is transported with the bobbin inserted in the tray. Each station is provided with a rotating roller for rotating a tray in which a bobbin is inserted.

[Effect]

At the bunch winding and cutting station of the picking device and the yarn end picking station, the tray is rotated by bringing a rotating roller into contact with the tray, and as a result, the bobbin on the tray is rotated to promote unraveling of the yarn end. .

〔Example〕

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

In this embodiment, a winding device is shown in which bunch winding is applied to the lower part of a bobbin, but the present invention is also applicable to a case where a bobbin having a top bunch is handled.

In FIG. 1, a schematic configuration of the pick-out device is shown. The spinning bobbin (1) is inserted into the tray (T) and is transferred along the conveyance path (2) in the direction of the arrow (3) to reach the receiving position (A) of the pick-out device. The bobbins (l a) received in the tray receiving parts (5) formed at regular intervals on the rotary plate (4) of the pick-out device are moved in the direction of the arrow (6) on the rotary plate (4). With the intermittent rotation, the bobbin (IS) passes through each processing stage * 7 (B) (C) CD) l) and reaches the unloading station (1"), and the bobbin (IS) that has been successfully unloaded is sent to the conveyance path (7) toward the winder.
The above station (B) has a cutter device b which unwinds and cuts the bunch winding (9) wound around the lower end of the bobbin. t
(10) is placed, and the station (C) pulls out the bobbin (IC) and cutter (10), and the thread I
A rotating roller (11) is arranged that lightly wraps around the fI surface. At station CB), the bobbin (1b) is rotated by a 7-reaction roller in the direction (12) in which the wound yarn IF is twisted, and at station (C), the bobbin (1b) is rotated by a roller (1
Due to 1), Lg1 is turned in the scenting direction (13).

Furthermore, at stage 9 (D), the 7th thread of evil
A thread end pulling device W (14) for suctioning and untying #4 is arranged, and is composed of, for example, a slit (15) elf 3-inch mouth (16). In this position 2, the bobbin (1d) is subjected to a rotation t- by the friction roller 9 (17) in the direction (12) of unwinding the thread. Furthermore, at stage 1<1>, the NFC is pulled out from the bobbin.
s to a certain length, and insert the center hole of the bobbin (1e) (
18) A thread end bookkeeper mechanism (19) for stretching the thread end into the thread end is provided.

What J? % heather fruit 1M row? The bobbin tray (T) that can be
As shown in the figure, a base part (21 inches) and a bobbin divine bean peg (22) are integrally formed on a 1-yen & shaped layered body (20), and the inside has a hollow part (23) opened at the bottom. The peg (22) is formed with one μ air passage hole (24), and by using the suction nitrogen flow in the direction of the top L41 (25) inside the tray (T), Air passage hole (
24) A double attractive force (26) acts within the bobbin center hole (18) through '.

FIG. 2 shows a plan view of the bobbin processing station in the morning. Insert the N bobbin into the receiving position (A), and insert the tray (Ta) into the passage (Ll) at 45 degrees 4 in the direction of arrow L11 (6) of the rotary plate (4). After passing through processing stages (B) to <b> and reaching the payout box [(f''), the bobbins that were successfully tapped are discharged to the maze (7), but the bobbins that were unsuccessfully tapped are Movable guide (27
a) and subsequently the feedback path (L
2), the machine reaches the pick-up processing acceptance position (A) again, and repeats the same operation as described above. That is, the processing station (E) is provided with a sensor for detecting the end of the pick-up yarn, and when the sensor detects that there is no yarn, the movable guide (27) in FIG. (28) etc., position (F
), the tray (T f ) is prevented from being dispensed.

In Figure 2, processing stations (B) (C) (D
) rotates the bobbin at each position.
9) (11) (17) and the drive source (3) are shown.The output pulley (31) of the motor (3) and each roller (29)
An endless bell (32) is hung between (11) and (17), and as the belt (32) rotates in the direction of the arrow (33),
Each roller (29) (11) (17) rotates in a predetermined direction. The rollers (29) (i7) contact and rotate the trays (Tb) (Td) in the direction of unwinding the thread on the bobbin, and the rollers (11) contact and rotate the trays (Tc) in the direction of winding the thread.
). In addition, each of the above rollers (29) [) (
17) is supported on levers (37), (38), and (39) that can freely swing around fixed shafts (34), (35, and 36), and therefore each roller is moved by the tension of the belt (32). A biasing force acts on the levers (37), (38), and (39) having the rollers in the direction of bringing the roller into contact with the circumferential surface of the base of the tray, and acts to ensure sufficient frictional force with the tray. (The number 4 is the tension pulley.

Next, the processing mechanism provided at each station will be explained.

3 and 4 show a cutter device (1) installed in the processing station (B) for unraveling and cutting the bunch winding. 41), a rotary cutter (42) that rotates within the suction case (41), a suction pipe (43) that generates a suction airflow in the internal space of the rotary cutter (42), and a rotary cutter (41). 42) A drive motor (44) and the like are arranged and connected, and a flixcon roller (29) for rotating the bobbin in the thread waste direction is provided.

The sash case (41) has an inner circumferential direction (45) that has approximately the same diameter as the outer circumferential surface of the drum-shaped rotational force lid (42), and an earthen wall m1 ( 47), and a thread end suction opening (48) is provided in a part of the outer circumferential direction of the case (41), and a thread end suction opening (48) is provided for bringing the cutting edge of the fixed blade (49) into contact with the outer circumferential surface of the rotational force cover. A notch (50) is formed at a distance. (51) is a fixed blade (49)
This is a plate spring that presses the spring against the supporting surface of the case.

A part of the spool case (41) is firmly attached to the hole (54), and a thread end passage hole (54) is formed in the outer circumferential wall (52). 55). The hole (55) is preferably circular, and the periphery of the hole and the sharpening fixed blade (49) form four blades.

2. To install the suction case (41), as shown in Figure 4, insert the thread end passage opening (48) of the suction case into the bunch winding portion (9) of the bobbin (1b) that has reached stage 9 (B). ) is fixedly installed in a position where the parts are close to each other from the side. Therefore, in this embodiment, since the bunch winding is located at the bottom of the bobbin, the suction case is also fixed at the same position, but when dealing with a bobbin that has a so-called top bunch where the bunch winding is located at the top of the bobbin, the suction case is also fixed. It is set at a position corresponding to the top bunch winding position.

Therefore, by rotating the rotary cutter (42) in the direction of the arrow (56) and creating a suction airflow in the drum (42), the end of the yarn wound around the lower end of the bobbin (1b) or the beginning of the winding can be removed. The thread (Yl) intertwined with the thread of
Due to the suction action of the drum (42), the opening (48) of the suction case (41) and the hole (
55) and being sucked into the drum interior (42a),
By rotating the drum and rotating the bobbin (1b) in the direction of the arrow (12), that is, by rotating the thread in the opposite direction to the winding direction, the thread end is unraveled. Once the yarn end α1) is sucked into the drum, the yarn pulled out from the bobbin is attracted to the circumferential surface of the drum, transferred through the gap between the casing (41) and the drum (42), and is forcibly removed from the bobbin. unravel the thread.

The yarn (Yl) to be transferred is transferred to the drum (4) which sucked the yarn.
When the hole (55) of 2) passes the position of the fixed blade (49), it is cut by the rear edge of the hole (55) and the fixed blade (49). The cut thread waste is sucked and discharged into the suction tube (43). As the drum (42) rotates further, the yarn in the next hole is cut in the same manner as above.

In addition, in order to apply the gap between the opening (48) of the suction case (41) and the bunch winding portion of the bobbin to different types of bobbins with different diameters, the entire cutter mechanism is movable. By placing the bobbin on a bracket and moving it according to the type of bobbin, it can also be used when handling multiple types of bobbins.

Next, referring to FIGS. 5 to 7, a device for accommodating the pick-up yarn end at a predetermined position on the bobbin will be described. In this embodiment, a type is shown in which the unraveled yarn end is transferred while being inserted into the center hole (18) of the bobbin from above.

That is, the yarn end insertion device is provided across the processing station CD) (E). The device consists of a suction mouse (16) provided at station (CD), a cutter (6) provided at station (E) that detects the presence or absence of the drawn-out thread and cuts the thread at a certain length position, The thread end suction mechanism (61) sucks the thread end into the center hole (18) of the bobbin.

The above suction mouse (16) is station CD)
A slit-like opening (15) extending over the length of the yarn layer at position povie yQd) and a slit-like opening (15) extending above the yarn detecting and cutting device (6) connected to the opening (15) at station (E). An abbreviated suction pipe with a slit (62) (
63). The pipe (63) is connected to a suction prower (not shown).

In addition, at the station (E), above the bobbin (1e) at the relevant position, a thread detection and cutter device (6) detects the thread (Y3) connected between the bobbin (1e) and the slit (62) of the suction mouth. Guide plate (64) to guide
(64) is integrated with the cutter device (6) and the fixed support member (6).
5). Also, the head of the bobbin being transferred (66
) to a fixed position and position the guide member (67)
is fixed to the support member (65). Note that the cutter device (60) is one that has a built-in yarn detection function and a cutter function, such as a slab catcher with a cutter used in a winder.
It is also possible to use a system in which the thread detection and cutter are separate.

Furthermore, there is a seventh tray directly under the tray at the station (E) position.
As shown in the figure, an opening (72) of a suction pipe (71) is provided in the center hole of the bobbin (1e) for applying a suction air flow. Therefore, the bobbin (
When 1e) is reached and the drawn thread is cut above the bobbin center hole, the cut thread end connected to the thread layer is sucked into the center hole by the suction force acting inside the center hole. One cycle of the cue operation is completed.

Next, the rotating body that transfers the bobbin to each of the stations (A) to (F) will be explained.

In Fig. 8.9, a rotary plate (4) having tray receiving grooves (5a) to (5h) formed at equal pitches around the circumference is fixed to a vertically extending shaft (75).
Outer guide plates (78) (79) having concentric guide surfaces (77) with a gap from the virtual outer peripheral surface (7) are fixed to the main body frame, and the receiving grooves (5a) to (5h)
) and guide plate (7B) (79) and plate (80
A tray transfer path is configured by the above.

The tray receiving grooves (5a) to (5h) are formed by approximately the inner half of a circle having a diameter approximately equal to the diameter of the tray, and in the case of this embodiment, the receiving grooves (5a) to (5h) are formed at an angle of 45 degrees. It is formed at eight locations with pitches.

Further, at two positions on the circumferential surface of each of the receiving grooves, a pair of rollers (81) (81) are mounted on shafts (81) for positioning the tray and for smooth rotation of the tray at the processing station.
2) Provided at (82). The roller (81)
The contact surface (81) with the tray protrudes from the curved 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) with a gap above the rotating plate (4) and having arcuate grooves (84a) to (84h) formed at the same position as the receiving groove is installed on the roller (81) (81). Axis (8
2) (82) and is fixed on the tray (T) as shown in Figure 9.
) have arcuate grooves (84a) to (84
h) may be located to prevent the tray from tipping over or flying upward during transport.

In addition, in FIG. 6, the tray transfer path is provided with a bottom plate (86
) is fixed to a plate (8) having a smooth surface with a thickness substantially equal to the thickness of the tray conveyor (87), and a This ensures smooth transfer during transport.

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

In Figure 8, arrow (3) points above the conveyor (87).
The tray (Ta) that has inserted and supported the spinning bobbin (1a) that has been transferred in the direction passes in front of the phototube sensor (ps) and waits at the tray receiving station/(A) position of the rotary plate (4). It enters the receiving groove (5a).

When the phototube sensor (PS) detects the passage of the tray, the rotary plate (4) moves with the arrow (6) after a certain time delay via a timer.
) direction by one pitch. That is, a phototube sensor (
Since the rotary plate does not rotate unless the tray detects passage of the tray, the receiving grooves (5a) to (5e) of each station (A) to (E) of the rotary plate (4) must be filled. A tray is received and present, and no empty condition appears at each station (A)-(E). Note that the reception grooves (5g) (5h) after the dispensing station (F) may be empty or have a tray present in some cases. That is, in the apparatus of the above embodiment, as will be described later, a bobbin whose yarn end has been mis-taken is not delivered from the delivery station CF onto the conveyor (87), but immediately passes through the bypass stations (G) and (H) to the receiving station again. (A) and is returned to the conveyor (87
) is controlled by the control device so that it is given priority to the upper bobbin and receives the effect of the pick-up process again.

Bobbin (1b) that has reached processing station (B) c.
The bunch winding wound around the lower end of the bobbin is cut off by the cutter device (1) shown in the third and fourth figures.

Next, the bobbin of station (B) is moved to station (
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.
C) and front station; y (B) cutter (10)
The unraveled thread in between is wound around the surface of the thread layer of bopi y (1c). In addition, winding the end of the thread in this case is
This does not mean gripping the thread end and actively winding it around the bobbin, but simply winding the free thread passively by rotating the bobbin, making it difficult to pull out the thread end at the next station. It doesn't wrap as tightly as it does.

Next, the bobbin (1d) that has reached the station (D) rotates in the direction in which the thread is unraveled by contact between the friction roller (17) and the tray (Td), and approaches the surface of the thread layer. The yarn end is loosened and suctioned by a suction mouth (16) located at the same position. The drawn-out yarn moves along the slit (62) shown in the first figure, and the yarn crosses between the station (D) and the slit.

Next, when the bobbin is transferred from station (D) to station (E), the drawn out thread (Y3) is transferred to the guide plate (64) in the cutter device (6) as shown in FIG.
(64) to actuate the yarn detection twin. At this time, a suction airflow is generated in the suction pipe (71) located below the tray (Te) of the station (E), and the thread end cut at the cutter (6o) position is inside the bobbin center hole (18). The yarn end is suction-inserted into the yarn end, and the thread end pulling process is completed.

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 still placed on the tray for supply to the winder. It is delivered onto the conveyance path (7).

In the embodiment shown in FIG. 8, the rotational speeds of the rotating rollers (29), (11), and (17) provided in the stations (B), (C), and (D) are different from each other. That is, the diameters of the rollers (29), (11), and (17) are the same, but the diameters of the belt winding pulleys (29a), (lla), and (17&) fixed to each roller are set to different values. Assuming that the diameter of the pulley (29a) is dl, the diameter of the pulley (17a) is d2, and the diameter of the pulley (lla) is d3, the settings are made so that the relationship dl<d2<d3 holds true. Therefore, as the rollers (29), (11, and ) and (11), the rotational speed decreases in this order. For example, if the roller (29) is 7.5r・pe
s, o-la (17) is 5r++p@8,0-la (11)
1.8r-p-817) and so on.

In other words, the reason why the roller (29) is the fastest is because the bunch winding of the bobbin (1b) at that position is wound on a winding tube with a small diameter, and the roller (29) unwinds this bunch winding.
11) is the cutter (10) and the bobbin (IC) at position (C).
) is set at a low speed in order to simply lightly wind the thread between the threads on the surface of the thread layer, and when the roller (17) rotates at a high speed in relation to the suction force of the suction mouth that sucks the thread end on the surface of the thread layer,
There is a risk that the unraveled thread may wind backwards around the bobbin, and this is related to the need to maintain suction and balance to unwind the thread end.

Note that the relationship between the rotational speeds of the above rollers is based on the cutter device (1
It is also possible to set the suction force independently in relation to the suction force at 0) and the suction force at suction mouse (1).
Of course, when each roller (29) [) (17) is rotated by a drive source such as a separate motor, the boot 9 (29a
) (lla) The relationship in (17a) can also be made independent.

〔Effect of the invention〕

As described above, in the present invention, the bobbin is rotated at each station of the pick-up device by rotating the tray in which the bobbin is inserted. If the tray size is kept constant, the yarn layer will not come into contact with the yarn layer, and the yarn layer will not be damaged.Also, even if the yarn layer diameters are different depending on the type of bobbin, or the winding tube diameter is large and small, the tray size can be kept constant. , there is no need to adjust the contact position of the rotating roller.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view showing an embodiment of the device of the present invention, Fig. 2 is a plan layout view of the same, Fig. 3 is a perspective view of a bunch winding cutter device, Fig. 4 is a sectional front view of the same, and Fig. 5 is a perspective view of the same. 6 is a cross-sectional side view of the tray transfer path of the pick-up device, and FIG. 7 is a cross-sectional front view showing an example of the bobbin transport medium applied to this embodiment. FIG. 8 is a plan view showing an embodiment of a rotary plate for bobbin transfer;
FIG. 9 is a sectional side view of the same. (1), (la) ~ (IS)...Spinning Bobi/(T),
(T a) - (Tf)...Tray (9)...Bunch winding (10)...Cutter device (16)...Suction mouth (29) (11) (17)...Rotating roller (A)
~(F)…Station

Claims (1)

[Claims] Along the path through which the bobbin is transported with it inserted into the tray, a cut station that unwinds and cuts the bunch winding and a pick-up station that picks out the yarn end from the yarn layer of the bobbin are arranged. is a yarn end pick-up device characterized by having a rotating roller arranged to rotate a tray in which a bobbin is inserted.