JPS61155172A - Thread end pick finding device - Google Patents

Abstract

PURPOSE:To make it possible to process bobbins at a high speed, by supplying trays each having a receiving section consisting of an intermittently rotating disc on which a bobbin is mounted upright, so that the bobbins are allowed to path successively through a pick finding station thereby it is possible to avoid removing the bobbins from the trays. CONSTITUTION:Bobbins 1 transferred from a fine spininning station and each mounted upright on a tray T are conveyed on a transfer path 2 in the direction of the arrow 3, and arive at a receiving position A where a pick finding device is set. Then, a bobbin 1a received into one of tray receiving sections 5 which are formed at uniform pitches in a rotary disc 4 in the pick finding device is transferred to a pay-out station F by way of process stations B, C, D, E in association with the intermittent rotation of the rotary disc 4 in the direction of the arrow in Fig., and the bobbin 1s which is succeeded in its pick finding is transferred on a transfer path 7 in the direction of the arrow 8 toward a winder. Thus, bobbins may be fed and transferred to a pick finding process section, being left to be mounted upright on trays without being removed therefrom, thereby it is possible to process bobbins at a high speed.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a yarn end pulling device for a spinning bobbin.

[Prior art] Spinning bobbins produced by spinning machines, especially ring spinning machines, have a tendency for yarn ends to come undone or become entangled with yarn ends from other spinning bobbins when being transported to the next rewinding process. In order to prevent this, at the end of winding the spinning bobbin, the end of the yarn is wound several times around a part of the winding tube.

When such a spinning bobbin is supplied to an automatic winder for a rewinding process, it is necessary to supply the wound yarn in an unwound state, so a feeder is disposed near the automatic winder.

On the other hand, there is a spinning bobbin conveying device that conveys the spinning bobbins mutually, but when the thread end of a spinning bobbin inserted in such a bobbin tray is taken out, a chuck member that raises and lowers the bobbin is used to move the bobbin. Since the end of the yarn is processed after it is gripped and once removed from the tray, there is a limit to the processing speed of the yarn, which is approximately 20 yarns/minute. Moreover, if there are many types of bobbins with different bobbin lengths, take-up tube thicknesses, etc., there may be inconveniences such as the need to change the lifting stroke of the bobbin chuck and the chuck part. ,
It was unsuitable for processing a wide variety of products.

[Problems to be Solved by the Invention] The present invention is a device that can supply and transfer a bobbin to a pick-up processing unit while it is inserted into a tray without removing the bobbin from the tray, and ensures high-speed processing. The purpose is to provide a device that can do this. [Means for Solving the Problems] The apparatus of the present invention is provided with a rotating plate that rotates intermittently in the middle of the conveying path for transferring the bobbin with the bobbin inserted in the tray, and the tray is mounted on the rotating plate. A receptacle is provided for receiving the rotary plate, and a pick-up processing station is provided at each intermittent rotation position of the rotary plate.

[Function] When the tray with the bobbin inserted therein, which has been transferred through the conveyance path, reaches the tray receiving portion of the intermittent rotating plate provided on the way, the bobbin is transferred together with the tray as the rotating plate rotates. The bobbin passes sequentially through a punch winding/cutting station, a feed station, and a thread end insertion station provided at each rotational position, and the bobbin that has been processed to feed the yarn remains integrated with the tray.
It is discharged and transported on the conveyance path again.

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

In this embodiment, an example is shown where the spinning bobbin is punch-wound at the lower end thereof, but the present invention can also be applied to a bobbin having a top punch with some modifications.

In FIG. 3, a schematic configuration of the pick-out device is shown. The spun bobbin α) is inserted into the tray (Tl) and transferred along the conveyance path (2) in the direction of the arrow (3), and reaches the receiving position of the pick-out device. ) are received in the tray position receiving parts (5) formed at regular pitch intervals. (Bl (
The bobbin (\S) that has been successfully taken out after reaching the payout station (Fl) via C1 (Dl fEl) is transported in the direction of the arrow (8) along the transport path (7) toward the winder.

The station (B) is equipped with a cutter device (10
) is arranged, and the station (C+ has a bobbin (IC)
A roller (11) is arranged to pull out the thread that is connected between the cutter (10) and to lightly wrap it around the surface of the thread layer.

At station fB), the bobbin (1b) is rotated by a friction roller in the direction (12) for unwinding the wound yarn, and at station (C), the bobbin (1b) is rotated by a friction roller
) rotates in the winding direction (13). Furthermore, at the station (Di), a yarn end pulling device (14) for suctioning and loosening the yarn end in a free state is arranged, and is composed of, for example, a suction mouth (16) having a slit (15).At this position, The bobbin (1d) is rotated by a friction roller (17) in the direction (12) for unraveling the thread.Furthermore, at the station (El to L), the thread pulled out from the bobbin is cut to a certain length. A yarn end insertion mechanism (19) for inserting the yarn end into the center hole (18j) of the bobbin (1e) is provided.

Note that in this embodiment, the bobbin tray ('r1 is the 12th
As shown in the figure, a platform (21) and a bobbin insertion peg (22) are integrally formed on a disc-shaped base (20), and a hollow part (23) opening at the bottom is formed inside. The peg (22) is provided with an air passage hole (24), and by applying a suction air flow in the direction of the arrow (25) inside the tray (T), the air passage hole ('124) is and the center hole of the bobbin (
18), a suction force (26) acts thereon.

FIG. 1 shows a plan view of the bobbin processing station. The tray (TA) with the bobbin inserted that has reached the receiving position hole passes through the processing stations iB) to +E) by intermittent rotation of the rotary plate (4) at 45 degree intervals in the direction of the arrow (6), and then reaches the payout position fF.
), the bobbins that have been successfully tapped are discharged to the transport path (7), but the bobbins that have failed to be tapped are discharged to the movable guide (
27a) and subsequently bypass CG)(H
), the machine reaches the output processing receiving position hole again and repeats the same operation as above. That is, a feeler for detecting the end of the pick-up yarn is provided at the processing station (El), and when the feeler detects that there is no yarn, the movable guide (27) is positioned at the position (27a) by a rotary solenoid (28) or the like. This prevents the tray (Tf) from being delivered when it reaches position (F).

In addition, in FIG. 1, processing stations (B), (C), and C
At D+, friction rollers (29) (11) (17) and a drive source (3) indirectly rotate the bobbin at each position.
0).

The output pulley (31) of the motor (30) and each roller (2
9) (11) (17) There is an endless bell between! - (32) is applied, 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 unwinds the thread on the bobbin, and the roller (11) rotates the tray (TC) in a direction that winds the thread.

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

4 and 5 show a cutter device (10) provided at the processing station TBI for unwinding and cutting punch windings. The cutter device (10) includes a suction case (4 (1)) fixedly supported by a fixed frame, and a rotary cutter (4 (4)) that rotates within the suction case (41).
2), in which a suction pipe (43) for generating suction airflow in the internal space of the rotary cutter (42), a motor (44) for driving the rotary cutter (42), etc. are arranged and connected, and a bobbin A friction roller (29) is provided for rotating the lint in the lint direction.

The suction case (41) has an inner circumferential surface (45) having the same diameter as the outer circumferential surface of the drum-shaped rotary cutter (42), and an upper wall surface (47) having holes (46) for passage of suction air. A part of the outer circumferential surface of the case (41) is provided with an opening (48) for suctioning the yarn end, and a notch (50) for bringing the cutting edge of the fixed blade (49) into contact with the outer circumferential surface of the rotary cutter. are formed at a distance. (51) is a fixed blade (49)
This is the plate spring that presses against the support surface of the case.

On the other hand, the rotary cutter (42) housed in the suction case (41) has an outer peripheral wall surface (52) and a bottom wall surface (53).
Boo'J (54) and an outer peripheral wall fixed blade (49) which are drum-shaped and are integrally fixed with the cutter (42).
The cutter is constructed by this.

The suction case (41) is installed by attaching the thread end passage opening (480) of the suction case to the punch winding part (9) of the bobbin (1b) that has reached the station (Bl) as shown in Figure 5. Fixedly installed in a location close to the toilet.

Therefore, in this embodiment, since the punch 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 punch where the punch winding is at the top of the bobbin, the suction case is also at the top. It is set at a position corresponding to the punch 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 cut. The thread entangled with the thread is sucked into the drum by the suction action of the drum (42) through the opening (48) of the suction case (41) and the hole (55) on the circumferential surface of the drum, while the drum rotates. When the bobbin (1b) is rotated in the direction of the arrow (12), that is, the thread is wound in the opposite direction, the end of the thread is unraveled. Once the yarn end is sucked into the drum, the yarn pulled out from the bobbin is attracted to the circumferential surface of the drum and transferred through the gap between the casing (41) and the drum (42), forcing the yarn to leave the bobbin. to solve.

The unraveled thread is cut by the rear end line of the hole (55) and the fixed blade (49) when the hole (55) of the drum (42) passes through the position of the fixed blade (49). . The cut thread waste is sucked and discharged into the suction tube (43). drum(
42) rotates further, the thread 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 punched 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 FIG. 6, a description will be given of a device for accommodating the picked-out yarn end at a predetermined position on the bobbin. 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 (Dl). The thread end suction mechanism (61) includes a cutter (60) that detects the thread length and leaves the thread uncut at a predetermined length position, and a thread end suction mechanism (61) that sucks the cut thread end into the center hole (18) of the bobbin.

The suction mouse (16) is located at the station (D).
A slit-like opening (15) extending to the length of the yarn layer of the bobbin (1d) at the position, and a slit connected to the opening (15) and extending above the station (the yarn detection and cutter device (60) at the E1 position). ) (62) and an abbreviated suction pipe (63). The pipe (63) is connected to a suction blower (not shown).

In addition, at the station (E), above the bobbin (1e) at the relevant position, a thread detection and cutter device (60) detects the thread (Y3) connected between the bobbin (1e) and the slit (62) of the suction mouth. ) guide plate (64
) (64) is provided on the fixed support (65) integrally with the cutter device (60). In addition, a guide member (
67) is fixed to the support member (65). The cutter device (60) has a built-in thread detection function and a cutter function, such as the slab catcher with a cutter used in wine goo, but of course, the cutter device (60) has a built-in thread detection function and a cutter function. A separate version is also applicable.

Furthermore, immediately below the tray at the station (E) position, as shown in FIG.
is provided. Therefore, when the bobbin (1e) reaches the station [F]) position and the drawn-out thread is cut above the bobbin center hole, the suction force acting in the center hole (18) connects the thread layer. The end of the yarn is sucked into the center hole, completing one cycle of the picking operation.

Next, the rotating bodies forming each of the stations A to fF) and their driving units will be explained.

In Figures 1 and 2, the vertically extending shaft (75)
A rotating plate (4) having tray receiving grooves (5a) to (5h) formed at equal pitches around the periphery is fixed to the rotating plate (4), and the virtual outer peripheral surface (76
) and a concentric guide surface (77) are fixed to the main frame, and the receiving grooves (5a) to (5h) and the guide plate (47) are fixed to the main frame.
8) (79), the plate (80), etc. constitute a tray transfer path.

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 (82) for positioning the tray and for smooth rotation of the tray at the processing station.
) (82). The contact surface of the rollers (81) (81) with the tray is the circumferential surface of the receiving groove (
83), and the tray outer circumferential surface and the receiving groove inner circumferential surface do not come into full contact with each other.

A guide plate (85) with a gap above the rotating plate (4) and having arcuate grooves (84a) to (84h) formed at the same positions as the receiving grooves is installed on the rollers (81) and (811). Axis (8
2) (82), as shown in the second figure (tray (T)
There are arcuate grooves (84a) to (84) in the base (21) of the
h) is located to prevent the Tetley from falling or flying upward during transportation.

In addition, in FIG. 11, the tray transfer path includes a bottom plate (8).
6) A plate (80) having a good sliding surface with a thickness substantially equal to the thickness of the tray conveyor (87) is fixed on top of the conveyor (87) No. 7 to No. 10 to the station.
The figure shows a drive device (90) for the rotating plate (4). The drive device (90) is installed in a drive box (91) above the processing station shown in Figure 11.

In FIG. 7, a shaft (75
) at the upper end of the tray receiving groove (5a).
A feed plate (93) formed with the same pitched notches (92a) to (92h) as (5h) is fixed with a key (94). Furthermore, the shaft (
A swing bracket (95) is loosely fitted to the shaft (75) so as to be freely rotatable with respect to the shaft. The above swing bracket (95
A rod (96) that swings the bracket (95) is connected to one end of the shaft (75) of the bracket (97).
A hole (99) is formed at the other end to accommodate a pin (98) that moves forward and backward with respect to the notches (92a) to (92h).

Further, on the end surface of the pin (98) side of the bracket (95), there is a pin (
98) into and out of the hole (99) in sets of 5.
) is supported via a shaft (101). That is, the ninth
As shown in the figure, a pin (98) that moves forward and backward with respect to the notch (92d) of the feed plate (93) is slidably inserted into a hole (99) formed in a part of the swing bracket (95). A compression spring (103) is wound between the upper end flange (102) of the pin (98) and the step of the bracket (95), and biases the pin (98) in a direction to separate it from the notch (92d). There is. The collar (102) of the above pin (98)
A rod (104) connected to a cam lever (described later) is connected to the suppressing piece (100) that comes into contact with the upper surface via a shaft (105). ) direction, the pressing piece (100) turns around the shaft (101) as a fulcrum, and the pin (98
) to suppress or release.

Therefore, in FIG. 7, when the rod (96) is moved a certain distance in the direction of the solid arrow (109) by the cam plate (108) shown in FIG. (75) in the counterclockwise direction by a certain angle (45 degrees in this embodiment). That is, when the other end (110) of the swing bracket (95) pivots from the solid line position (110) to the two-dot chain line position (110a), the pin (98) moves to the solid line position as shown in FIG. (93), the feed plate (93) will rotate by 45 degrees in the direction of the arrow (111) as the swing bracket (95) moves. Shirt 1-(75) bottom fixed to the feed plate (93).

The rotary plate (4) at the end rotates by the same angle. Subsequently, when the rod (96) moves in the direction of the dashed line arrow (112), the swing bracket (95) returns to the two-dot chain line position (9).
Return from 5a) to the solid line position (95). During this move,
The pin (98) is in the ninth position at the two-dot chain line position (98a).
As shown in the figure, the feed plate (93) does not rotate as the swing bracket (95) returns to its original position since it has been separated from the notch (92d) of the feed plate (93). , it will remain in a stopped state.

Fig. 10 shows the cam levers (113) (114) and the cam plate (108) connected to the rods (96) (104).
) (115) is shown. That is, the swing bracket (9
A cam lever (113) connected to a shaft (116) to the drive rod (96) of 5) is pivoted to a fixed shaft (117) (jf It is biased by a spring (not shown) in the direction of pressing the pin (98).On the other hand, the shaft (11) is connected to the control rod (104) of the pin (98).
9) The connected cam lever (114) is connected to the fixed shaft (1
(17) and (-)) shaft (119) (11
The cam follower (120) between 7) is urged by a spring (not shown) in the direction of pressing against the cam surface of the cam plate (115). In addition, the above cam plate (10'8) (
115') is fixed to the camshaft (121) and rotates in the direction of the arrow (122).

When the cam follower (118) of the cam lever (113) is on the cam surface (108a), the swing bracket (95) is in the position shown by the two-dot chain line in Fig. 7, and the cam plate (
As the bracket 108) rotates, the cam surface (108ib) gradually reaches the large diameter part (108C), and the swing bracket 1
-(95) reaches the solid line position from the two-dot chain line position (95a) in FIG. Beyond the large diameter part (108C), the small diameter part (1
When the cam follower (118) moves in a short time to 08a), the swing bracket (95) pivots from the solid line position (95) to the double-dashed chain line position (95a), moving the feed plate (93) by 1 pitch. It rotates. Also, the cam lever (114) for controlling the pin (98) is connected to the swing bracket (95).
) operates in synchronization with the movement of the That is, when the swing bracket (95) is at the position (95a) shown by the dashed line in Figure 7,
The cam follower (120) is in contact with the cam surface (115a) at a position (120a) shown in two-dot chain line, and the pin (98) is in a position separated from the notch (92d) of the feed plate (93).

From this state, as the cam plates (108) and (115) rotate, the cam follower (120) follows the cam surface (115b) and rotates the cam lever (114) counterclockwise around the shaft (117). However, the amount of rotation is for following the rotation of the swing bracket (95) and does not affect the behavior of the pin (98).

The cam plate zo8) (115) further rotates, and the large diameter part (
115G) reaches the position of the cam follower (120), and when the cam follower (120) follows the steeply inclined cam surface '(115d) toward the small diameter portion (115e), the opening (104) moves toward the left in FIG. 8, the suppressing piece (100) in FIG. 8 rotates clockwise around the shaft (101) and pushes down the pin (98) against the spring (103).
Engage the pin (98) with the notch (92d) of the feed plate (93). In this position, the cam plates (108) and (115) are installed out of phase so that the large diameter portion (108C) of the other cam ((108) comes into contact with the cam follower (118).Continued As the cam plates (108) and (115) rotate, the feed plate (93) engaged with the pin (98) rotates intermittently for one pitch.

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

In Figure 1, arrow (3) points above the conveyor (87).
The tray (Ta) that has inserted and supported the spinning bobbin (LA) that has been transferred in the direction passes in front of the phototube sensor (PS) and enters the receiving groove ( Enter step 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 rotating plate does not rotate unless PS) detects the passage of a tray, there is always a tray in the receiving grooves (5a) to (5e) of each station A to fE) of the rotating plate (4). The receiving groove (5g > (5, bi) after the dispensing station +F) does not appear in each station 8~ (El).
In some cases, there may be a mixture of an empty state and a state where a tray exists. In other words, in the apparatus of the above embodiment, as will be described later, a bobbin whose yarn end has been mislead is not discharged from the discharge station (F) onto the conveyor (87) (immediately transferred to the bypass stage, Yon (G), (H)).
After that, they are returned to the receiving station again and transferred to the conveyor (8
7) It is controlled by the control device so that it is given priority to the top box and receives the effect of the pick-up process again.

The bobbin (1b) that has reached the processing station (B) is
4.5 The punch winding wound around the lower end of the bobbin is removed and cut by the illustrated cutter device (10).

Next, move the station (Bl bobbin to the station (
C) At this position, the friction roller (11) comes into contact with the tray (TC), and the bobbin ('LC) is rotated in the thread winding direction through the tray, and the bobbin (tC) and the previous station fB are rotated. ) The unraveled thread between the cutters (10) is wound on the surface of the thread layer of the bobbin (IC). 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 thread with a flat tip passively and lightly by rotating the bobbin. It is so hard that it becomes difficult to pull out the thread end at the next station just by turning it.
There is no wrapping.

Next, the bobbin (1d) that has reached station CD+ is rotated in the direction in which the thread is unraveled by contact between the friction roller (17) and the tray (Td), and is brought close to the surface of the thread layer. The yarn end is loosened and suctioned by the positioned suction mouth (16).

The pulled out thread follows the slit (62) shown in the sixth figure.
The thread moves between the station (D+) and the slit.

Next, when the bobbin is transferred from the station (D+) to the station (E), the drawn out thread (Y3) is transferred to the guide plate (6) inside the cutter device (60) as shown in FIG.
4) Guided by (64), the thread detection fee 4° is applied. At this time (, - no station (El's lere f
(Te) A suction airflow is generated in the suction pipe (71) located below, and the thread end cut at the cutter (60) position is sucked and inserted into the bobbin center hole (18), and the thread end is sucked and inserted into the bobbin center hole (18). The opening process is completed.

Therefore, the bobbin that has reached station fF 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 fresh bobbin for supply to the winder. It is delivered onto the conveyance path (7).

[Effects of the Invention] As described above, in the present invention, when a tray with bobbins inserted therein is fed to the receiving part of the rotary plate that rotates intermittently, the bobbins can pass through the unloading processing station one by one as the bobbins rotate intermittently, and the bobbins can be There is no need to remove the paper from the tray (high-speed processing is possible, and extraction processing can be performed efficiently).

[Brief explanation of the drawing]

Fig. 1 is a plan view of a rotary plate for bobbin transfer showing an embodiment of the device of the present invention, Fig. 2 is a cross-sectional side view of the same, Fig. 3 is a schematic perspective view of the pick-up device, and Fig. 4 is a punch winding plate. FIG. 5 is a sectional front view of the cutter device, FIG. 6 is a schematic perspective view of the feed mechanism and yarn end insertion mechanism, FIG. 9 is a plan view of the rotating plate drive device, and FIG. 8 is a perspective view of the cutter device. 9 is a partially sectional side view showing a state in which the pin (98) and the feed plate (93) of the same mechanism are engaged, and FIG. 9 is a partially sectional side view showing a state in which the pin and feed plate of the same mechanism are not engaged. , Fig. 10 is a side view showing the driving cam of the mechanism, Fig. 11 is a partially sectional side view showing the suction mouth and the bottom of the tray passage, and Fig. 12 shows the structure of the tray applied to the device of this embodiment. FIG.

Claims (1)

[Claims] Transfer the bobbin with it inserted in the tray A rotary plate that rotates intermittently is installed in the middle of the conveyance path. The rotary plate has a receiver for receiving the tray. A container is provided, and an opening is provided at each rotational position of the rotary plate. Features a dispensing processing station A thread end pulling device.