JPS6039422A - Apparatus for handling bobbin - Google Patents

Abstract

PURPOSE:To discriminate the empty bobbin from the bobbin having residual yarn correctly, and decrease the detection miss, by detecting the bobbin according to the displacement of the piece for detecting residual yarn when the bobbin having yarn layers is passed through the transfer path of the bobbin. CONSTITUTION:The sensor S2 of the discriminator A is furnished with the detection bar 6 placed close to the bobbin (b) transferred by the conveyor 3. When the tilt of the detection bar 6 is detected, the tray 1 is passed without being stopped. The sensor S3 is furnished with the residual yarn detecting piece to detect the presence of even a small residual yarn at a part of the bobbin (b), and the detection piece 120 is tilted and the bobbin is discriminated in the course of the upward motion of the tilting member when there is a yarn layer Y2 on the bobbin (b).

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bobbin processing device, and particularly to a bobbin processing device on a conveyance path for bobbins supplied to and discharged from textile machines such as spinning machines and automatic winders.

For example, the tube yarn produced by a spinning machine is rewound in the next rewinding process, and in this case an automatic winder is applied, but the empty bobbin that has been rewound and has no yarn layer is re-wound. The bobbin circulates between the spinning machine and the winder, where it is returned to the spinning machine and wound up.

In this case, the bobbin discharged from the winder is an empty bobbin with no yarn layer at all, a bobbin with a small amount of yarn remaining that is not suitable for resupplying to the winder, or a bobbin that is not rewound at all. There are three types of bobbins: bobbins with a fully wound yarn layer, and bobbins with residual yarn that have a small number of rewinds and can be resupplied to the winder.

As described above, the various bobbins discharged from the winder are appropriately sorted by a bobbin processing device located on the transport path, and specific bobbins are transferred to a specific transport path or storage box. In this case, a common method for sorting bobbins is to project light onto the thread waste area and use a phototube sensor to detect the reflection or transmission of the light to identify empty bobbins and bobbins with remaining thread. Due to dirt on the surface, ambient light, etc., there is a high incidence of sorting errors, a lack of reliability, and a major obstacle during automatic transportation.

The present invention aims to solve the above-mentioned drawbacks by providing a remaining yarn detection piece in the bobbin transfer path that comes into contact with the yarn layer and displaces when the bobbin having the yarn layer passes, The bobbin is identified by the presence or absence of displacement of the remaining thread detection piece, and an empty bobbin and a bobbin with remaining thread are identified by directly contacting the thread layer.

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

Fig. 1 and Fig. 2 are layout diagrams showing an example of a spinning winder to which the device of the present invention is applied. The band (101) is inserted and supported by the upper peg, is transported in the longitudinal direction along the spinning frame (100), is fed into the pipe supply device (102), and is placed on standby below by a pipe transport means, such as a belt conveyor. It is inserted upright into a peg tray that is transferred above, and is supplied to each winding unit (1o4) of the winder (103). Reference numeral (105) denotes a preparation device having a pull-out device for unwinding the punch winding of the pipe yarn and pulling out the yarn end, or a sensor for detecting the presence or absence of a yarn layer of the pipe yarn.

To supply the yarn to each winding unit of the winder (103), the yarn is individually supplied from the yarn conveying path (106) to the winding position of each unit while the yarn is inserted into the peg tray. Empty bobbins that have been completely wound or bobbins with remaining yarn that have a yarn layer are transported by an empty bobbin transport path (107) disposed along the winding unit and sent to the bobbin processing device (107).
08) According to K, the bobbins are sorted into empty bobbins and bobbins with remaining yarn.

Empty bobbins extracted from the bag tray by the processing device (ios) are transported upward, for example, by an empty bobbin conveyance path (109), and then transported to the end of the spinning frame by a conveyance path (110) extending longitudinally above the spinning frame. It is stored in the stock part (11, 2) via the shoe (111), or is supplied and inserted into the empty bag on the lower transport band (101) at the appropriate timing. On the other hand, in the bobbin processing device (108), the empty bobbin or the bobbin with a very small amount of yarn remaining is removed, and the empty peg tray is further transferred on the conveyance path (113) to supply new pipe yarn (to). The tube supply device (102
) position.

FIGS. 3 and 4 show an embodiment of the above bobbin processing apparatus.

In this device, the bobbin (b) that has been wound and discharged from the automatic winder is placed between the pegs (2) of the disc-shaped tray (1).
) and is conveyed on the belt conveyor (3) in an upright state. Further, it is assumed that two types of yarns are simultaneously wound in the winder, and the threads (in each bobbin) are supported by two types of trays (1) according to the types of the yarns.

The type of tray (1) is indicated by an identification mark attached to the circumferential surface of the tray, or by the color or shape of the tray (1), and is determined by a sensor described later. This device is arranged close to the conveyor (3), and the tray (1) that is transferred on the conveyor (3).
and a discriminating device ^) for discriminating the bobbin (b) and stopping it or passing it through, and a bobbin chuck device <B) for gripping the upper end of the bobbin (b) stopped by the device (8).
and a lifting device (q) for lifting and lowering the chuck device).
and a guide device 0 that guides the movement of the chuck device).

The discrimination device (2) includes a first sensor (Sl) for discriminating the mark on the tray (1), and second and third sensors provided on the main sorting device downstream of the first sensor (Sl). Sensor (S
2) (83) and a tray stopping device (5) that stops the tray (1) on the conveyor (3) in front of the main sorting device. The first sensor (Sl) is a photoelectric reflection type sensor, but the second sensor (S2) is a sensor of the conveyor (3).
) has a detection bar (6) very close to the bobbin (b) that moves on the bobbin (b), and when a large number of threads (a) are wound around the bobbin (b), the detection bar (6) It comes into contact with the thread layer and rotates in the tray movement direction. The rotation of the detection bar (6) is detected by a proximity switch provided at one end thereof, and when the rotation is detected, the tray stop device (5) is not activated and the tray (1) remains on the conveyor (3). pass through. (8) shown in FIG. 8 is a torsion spring for returning the detection bar (6) to its original position. The third sensor (S3) is a sensor for detecting a very small amount of yarn remaining, and detects whether a small amount of yarn remains on a part of the bobbin (b). Tray stop device (
5) is for stopping the tray (1) by rotating a rod-shaped stopper using a rotary solenoid, and is activated when the second sensor (S2) does not detect the thread (G).

The third sensor (S3) shown schematically in FIG. 4 is shown in detail in FIG. 5.6.7.

The third cell (S3) includes a remaining yarn detection piece (120) that directly contacts the remaining yarn, a positioning device (121) that positions the detection piece (120) to an operating position, and a positioning device (121) that detects displacement of the detection piece. It is composed of a detecting proximity switch (122) and the like.

That is, on the bracket (123) which is inserted and fixed to the guide rod (10), a first rotating member (124) and a second rotating member (125) are mounted on the vertical bracket (123) which is fixed to the bracket (123). The first and second
A torsion spring (127) is interposed between the rotating members (124) and (125), and the spring (127)
One end is attached to the bracket (123), and the other end is attached to the second
The spring (
127), the second pivot member (125) is connected to the shaft (12
6) is biased in the counterclockwise direction in Fig. 6, and
Strike on the first pivot member (124).

When the second rotating member (1'25) comes into contact with the pad (128), the first rotating member (124) also rotates counterclockwise around the axis (126) integrally with the second rotating member (125). biased in the direction. - The second rotating member (125) is formed into a square shape, and has a horizontal shaft (1, 29) protruding from one side (125a) of the square shape.
A remaining yarn detection piece (120) is rotatably supported on the holder, and is capable of swinging within a certain angular range within a vertical plane. The axis (129)
A torsion spring (not shown) is wound around the detection piece (120) to urge the detection piece (120) clockwise in FIG. 7 around the shaft (129). ('1.30) is a stopper that regulates the lower limit of the detection piece (120), and is composed of a pin that projects horizontally from the second rotating member (125). The above detection piece (120
A brush (131) is implanted at the tip of the brush (131) to facilitate engagement with the thread layer. Instead of the brush, another cloth member or a rubber material with a large friction coefficient may be fixed. Further, a proximity switch (
122) is fixed to the first rotating member (124) as shown in FIG. The presence of remaining yarn is detected by separation.

The first and second pivot members (124) and (125) are positioned using horizontal axes fixed to the frame (132). The above-mentioned swing lever (134) has an upper horizontal portion that is further L.
The part (135) rests on a block (136) fixed on the endless belt (28). The block (136) is connected to a member (15) that is connected to a force, which will be described later, and one rotation of the endless belt (28) reciprocates the shichacker up and down once. Therefore, when the block (136) is in the position shown in Figure 5, that is, at the upper end of the belt's upper boob IJ (27), the swing lever (
134) is the solid line position (134) in Figure 6, that is, the detection piece (12
0) is located at a position sunk below the bobbin conveyance path and does not obstruct the conveyance of the bobbin. When the above bell) (28) starts to rotate in the direction of arrow (137), the professional
The lever (136) also moves in the same direction and the chutka is lowered, but the swinging lever (134) releases its contact with the block (136) and is rotated by the force of the spring (127) as shown by the arrow in Figure 5. , the detection piece (120) is moved to the position (120a) indicated by the dashed dotted line in Figure 6, that is, the remaining yarn detection action position.

Therefore, while the bell) (28) is rotating, that is, while the chatka is lowering and rising, the first rotating member (124) continues to be positioned at the position (124a) shown by the dashed line in Figure 6, and when the chatka is rising, the first rotating member (124) is attached to the bobbin. If a yarn layer is present, the second turning member (1
25) rotates clockwise in FIG. 6 about the shaft (126) against the force of the spring (127), or the detection piece (1
20) turns to the position (120b) indicated by the chain dotted line in Figure 7. When the block (136) returns to its original position, that is, the position shown in FIG.
27) in the direction of arrow (139) and returns to the original position, that is, the position shown by the solid line in FIG.

Next, the bobbin chuck device will be explained.

In Fig. 3.4, the bobbin chuck device (B) has an elevating member (11) slidably mounted on a guide rod (10) fixed at the center of the processing device, and a chuck (12) attached to the elevating member (11). and a cam follower (13). These details are shown in Figure 8, and the lifting member (
11) has a projecting piece (14) on the upper end and an L-shaped member (15) on the lower end.
), and the thrust bearing (16) allows the rod (
It is movable up and down along the lifting member (10).
1) Chatka (12) and cam follower (13) on the outer circumference
It rotatably supports a ring (17) to which a torsion spring (18) is fixed.
), its rotation is suppressed. Chatka (12)
) has a recess (1) on its lower surface that accommodates the upper end of the bobbin (b).
9), and a cam member (20) is pivotally supported in the chatka (12) by a shaft (21). It's like it's haunting you inside. One end of the cam member (20) is connected by a shaft (23) to a pin (22) supported vertically movably on the chatka (12), and when the lower end of the pier (22) is pressed, the cam member (20) turns and a part of it becomes a recess (
19), and when the lower end is pushed, it is retracted from the recess (19). Also, from the axis (23), the 10th
As shown in the figure, the shaft (
24) Spring (25) between (24) (25)
is tensioned, and the cam member (20) is biased to assume one of the above-mentioned protruding and retracting positions by the tensile force of the spring (25) (25).

Next, the lifting device 0 consists of a motor wheel provided at the lower end of the frame (26) and a boo IJ provided at the center position of the frame (26).
(27), an endless bell wrapped between the pulley (27) and the pulley of the motor (C) (28), the L-shaped member (15), and a fourth sensor (S4).
), Strike, Pa group (29X30a) (30b) (30c)
(30d) etc. The lifting member (11) is L
The bell (28) is connected to the bell (28) by the shaped member (15), and the motor is driven by the action of the second sensor (S2) to move the bell (28), and the lifting member (
11) moves up and down along the rod (10). The fourth sensor (S4) is a proximity switch fixed to the upper end of the frame (26), and functions to stop the elevating member (11) at the highest position by detecting the protrusion (14). There is a stopper (29) at the lower end of the rond (10), and four stoppers (30a) (30b) (30c) (3
0d), and when the elevating member (11) reaches the lowest position, the stopper (29) abuts against the pin (22) of the chutka (12), causing the cam member (20) to protrude; When it reaches the top position, attach the above stopper (
30a) (aob) (30c) (aod) come into contact with each other to retract the cam member (20).

The guide device 0 is provided on the upper part of the frame (26) as shown in FIGS. 9 and 10, and includes three guide plates (
31) (32) (33), various switching devices, and a board (34) that supports these.

The guide plate has guide surfaces (31a) located in the center and on both sides.
) (31b) and a central guide plate (31) located on both sides thereof and having guide surfaces (32a) (aaa) on each outer side.
There are left and right guide plates (32) (33) having the stoppers (30a) (30b).
(30c) Stopper support plate (30d)
5) and is fixed to the substrate (34). From both sides of the board (34) are 7-arms (36a) (36b).
extends, and the shaft (37a) (37b) at the tip of each arm (36B) (36b) has an operating lever (38a).
(38b) and the guide lever (39&) (39b) are supported integrally with each other so as to be freely pivotable. The guide levers (39a) and (39b) also have guide surfaces on the outside 9, and when turning, the guide surfaces smooth the tips of the center guide plate (31) and left and right guide plates (32) and (33). It is now possible to contact. In addition, (4
0a) (40b) are torsion springs for returning the guide levers (39a) (39b) provided on the shafts (37a) (37b). There are two rotary solenoids (41) (42) on the back of the central guide plate (31).
) are fixed, and switching members (43) and (44) are fixed to the shafts of the solenoids (41 and 42), respectively, and the lower first switching member (43) is connected to the central guide plate (31). The upper second switching member (44) has two pins (46a) located in the notch (45) formed at the lower end.
(46b) is fixed. The first switching member (43) has a pointed shape with guide surfaces (43a) and (43b) on both sides, and rotates in the directions of arrows (47a) and (47b) by the excitation of the tenth talen lens (41). Second switching member (44) id 20th-tally solenoid (4
The pins (46a) (46b) alternately push up the operating levers (38a) (38b), thereby causing each guy to rotate in the directions of arrows (48a) and (48b). v Bar (39a) (39
b) is the center guide plate (31) and the left and right guide plates (32).
) (33) Communicate or open communication between

Regarding the above-mentioned bobbin processing device, its operation will be explained next.

When the tray (1) supporting the bobbin (inside the bobbin) moves on the conveyor (3), the first sensor (Sl) first determines the type of tray (1) from the identification mark on the tray, and the rotary The solenoid (41) is energized,
The first switching member (43) assumes the position shown in FIG. Next, if the second sensor (S2) does not detect a yarn layer on the bobbin, that is, if the bobbin is not a bobbin with residual yarn, this special bobbin is either an empty bobbin or a bobbin with very little yarn remaining, but The tray stop device (5) shown in FIG. 4 is activated to stop the tray (1) in a fixed position. Lifting member (11)
The highest position is the standby position, and the motor is driven at the same time as the tray stops at the fixed position, and the bell)
(28) starts traveling, and the lifting member (11) connected to the bell (28) by the L-shaped member (15) starts to descend quietly. When the elevating member (11) reaches the lowest position, the pin (22) of the chuck (12) contacts the stopper (29) K, causing the cam member (20) to rotate. At this time, the tray stop device (5) is placed in the recess (19) of the chatter (12).
), the upper end of the bobbin (b) which has been stopped is inserted, and the upper end is pressed by the cam member (20), whereby the bobbin (b) is gripped by the chuck (12). . The elevating member (11) moves from this state to the ascending process,
The bobbin (b) is removed from the tray (1), and then the tray stopping device (5) releases the empty tray (1) by the action of a timer (not shown).

If the bobbin gripped during the lifting and lowering of the above-mentioned chatka is an empty bobbin, the empty bobbin is detected by the remaining thread detection piece (120) in FIG.
Since the second switching member (44) shown in FIG. 9 is not displaced, the second switching member (44) is maintained at the solid line position. The second switching member (44) simultaneously pushes up one operating lever (38a) of the pier (46a) using the rotary solenoid (42) when the first sensor (Sl) detects the tray. ) and integrated guide lever (3
9&) is positioned at the position shown in FIG.

Therefore, during the ascent of the chatka, the cam follower (13) is the first
Abuts on the switching member (43) and its left guide surface (43a
) to the center guide plate (31) and the left guide lever (
39a) and the guide surface (32) of the left guide plate (32).
a) Move up, and along with this, the bobbin chuck device (B)
is 90 against the biasing force of the torsion spring (18).
It ascends while turning a certain degree and assumes the attitude shown in Figure 1. When the bobbin chuck device ■ reaches the highest position, its protrusion (1
4) is detected by the fourth sensor (S4), the motor stops driving, and at the same time the pin (2) of the chatka (12)
2) is pressed from above by the stopper (30a), the cam member (20) retreats from the recess (19), and the bobbin (
b) is released and falls into the shoe (50) fixed to the frame (26).On the other hand, when the bobbin being gripped is a bobbin with a very small thread remaining while the chutka is rising, The remaining yarn detection piece (120a) located at the dotted chain line engages with the remaining yarn, and the second turning member (125) moves against the gooseberry/g (127) and rotates the shaft (126) according to the diameter of the yarn layer of the remaining yarn. ) in the clockwise direction, and the detection piece (120a) moves to the position shown by the dashed line in Figure 7 (120
b) The proximity sensor (122) is activated in order to pivot toward the vicinity, the second switching member (44) pivots in the direction of the arrow (48b) in FIG. 9, and the guide lever (39a)
9b) As shown below, the continuity with the kite (31) is broken and the cam follower moves from the guide surface (43a) to the guide surface (31a).
As a result, the position at the highest end of the chunka becomes the position (30b) shown in Fig. 10, and the bobbin with a very small amount of thread remaining, which is released at this position, is threaded through another chute. The empty bobbin is discharged to the empty bobbin box or out of the empty bobbin conveyance system.

On the other hand, if the tray (1) transferred on the conveyor (3) is a different type of tray, the first sensor (Sl)
The switching member (43) is rotated in the direction of the arrow (47b) to a position 9, at which time the cam follower (13) is guided over the right guide surface (31) of the first switching member (43). 1st and 20th - tally solenoid (41) (4
The operation of 2) is as shown in Fig. 11, where Xl
and X2, Y+ and Y2 are the same, and ON means that the first and second switching members (43) and (44) are respectively indicated by the arrows (47a).
(48a) direction, indicating a turn in the opposite direction to OFF. That is, if the thread (a) is sufficiently wound around the transferred bobbin (b), the second sensor (S2) detects that the bobbin (b) passes, and if it is not sufficiently wound, the tray is stopped. It is stopped by the device (5). Also the first
The direction of the first switching member (43) is switched depending on the type of tray (1) by the action of the sensor (Sl), and the cam follower (13) is switched and guided to the left or right side of the central guide plate (31). . Further, by the function of the third sensor (S3), it is detected whether or not there is a very small amount of yarn remaining on the bobbin (b), and based on the result, the guide lever (39a) (39
b) pivots to two positions to guide the cam follower (13) onto the guide surfaces (31a) (31b) of the central guide plate (31), or guide the cam follower (13) onto the guide surfaces (31a) (31b) of the left and right guide plates (32) (33). 32a) (33a) It is determined whether to guide upward. In other words, the bobbin (b) does not have enough thread (1).
The falling position can be switched to a total of four depending on the type of tray (1) and the presence or absence of extremely small remaining yarn.
) Four chute (50) are provided at positions corresponding to the above-mentioned falling position, and the chute (50) is
The bobbins (b) separated and discharged according to the method 0) are stored in a container (not shown) or are returned to the spinning machine by a conveyor or the like.

In addition, FIG. 12 shows the second sensor for detecting the bobbin with remaining thread (
S2) operation and a top view of the tray stop device, the second sensor (S2) is connected to the bobbin (b) moving on the conveyor (3).
It has a detection bar (6) very close to the bobbin (b), and when a large amount of yarn is wound on the bobbin (b), the detection bar (6) comes into contact with the yarn layer and detects the two-point g line. Turn to position (6a). The rotation of the detection bar (6) is detected by a proximity switch (7) provided at one end thereof, and when the rotation is detected, the tray stop device (5) is not activated and the tray (1) remains on the conveyor. move. The tray stop device (5) is a device that stops the tray (1) by rotating a rod-shaped stopper (9) using a rotary solenoid.
It is activated when the second sensor (S2) does not detect yarn.

Furthermore, as shown in Fig. 4, it is sufficient to provide the remaining thread detection bar (6) and the extremely small remaining thread detection piece (120) at the middle of the bobbin (b), but it is necessary to provide them over the entire length of the bobbin. There isn't. That is, when winding a spun yarn onto a bobbin Φ), it is generally wound from the lower part of the bobbin, so if there is a large amount of yarn layer in the middle part, the yarn layer will span the entire length of the bobbin, and If the detection bar (6) does not operate, either a very small amount of yarn remains at the bottom of the bobbin or the bobbin is empty.

In addition, if the very little remaining thread detection piece (120) is similarly located at the middle part of the bobbin or above the middle part, it will detect the very little remaining thread remaining below the bobbin (Fig. 7 (Y2)). be able to. Even if the very small remaining yarn hardly forms a yarn layer and the second turning member (125) is not displaced in the horizontal plane, the yarn locking member (13) at the tip of the detection piece (120)
The detection piece (120
) is displaced in the vertical plane, and it can be detected that the bobbin has very little thread remaining.

As described above, in the present invention, a remaining yarn detection piece is provided in the bobbin transfer path, and is disposed in direct contact with the yarn layer of the bobbin passing through the path and is displaced as the bobbin moves. Empty bobbins and bobbins with remaining yarn are identified based on the presence or absence of displacement, so compared to the conventional method of identifying by projecting a light beam onto the yarn layer, it is possible to identify them more reliably and eliminate the possibility of detection errors. In particular, in an automatic bobbin conveyance system, it exhibits an extremely remarkable effect in determining the bobbin conveyance path, and enables a flexible conveyance system.

[Brief explanation of drawings]

A front view showing an example of a bottle processing device, FIG. 4 is a side view of the same,
Fig. 5 is a perspective view showing an embodiment of the device of the present invention applied to the same device, Fig. 6 is a plan view of the same, Fig. 7 is an explanatory diagram showing the behavior of the remaining yarn detection piece, and Fig. 8 is a bobbin cha). 9 is a front view of the guide device, FIG. 10 is a cross-sectional plan view of FIG. 9, and FIG. 11 is a diagram illustrating the operation of the first and second rotary solenoids. FIG. 12 is a plan view of the second sensor and tray stop device for illustration only. (10)...Guide rod (11)...Elevating member (12)...Chatka (120)...Remaining thread detection piece (b)...Bobbin (Y2)...Minimum residual thread ( 108
)...Bobbin processing device No. 70 No. 8

Claims (1)

[Claims] A remaining yarn detection piece is provided in the bobbin transfer path, and is in direct contact with the yarn layer of the bobbin passing through the path, and is displaced as the bobbin moves. A bobbin processing device characterized in that the bobbin is identified.