JP3499643B2 - A device for filling cans with a longitudinal section in a spinning machine, for example a drawing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for filling a can of a longitudinal cross section (flat can) in a spinning machine, for example, a kneading machine, with a sliver of cotton, chemical fiber or the like. It is discharged and stored in a coil shape, and the can makes a reciprocating motion in the vertical direction during the filling operation.
The present invention relates to one provided with a moving device having a driving device capable of reciprocating the can in the filling process.

[0002]

2. Description of the Related Art In a known method (WO91 / 18135), an empty can storage device and a full can storage device are arranged one after another. A replacement means as a conveyor belt or a conveyor chain is attached to each of these two can storage devices. These conveyor belts or chains are next to another conveyor belt or chain,
Directed by guide rollers. The conveyor belt or conveyor chain extends from the can storage device to the vicinity of the filling head of the drawing machine and is deflected by guide rollers. The carrier chain drives the carrier. The carrier engages the flat can and carries it to the filling head area. Here, the flat cans are received by two arms of a can changing means which is configured as a reciprocating device. These arms enable the flat cans to be carried by the conveyor belt to the reciprocating area of the drawing machine.
The grips are configured so that they can swivel back from the flat cans and move towards each other, with the flat cans held tightly in between. The sliver cannot be uniformly distributed in the flat can, unlike the case where the sliver is accommodated in the round can by the stacker head of the drawing machine. Therefore, the reciprocating device is required. In order not to impair the reciprocating movement required for filling the flat cans, the carrier chain is returned from the reciprocating section of the drawing machine to the basic position in which the carrier is located on the side of the cans housing opposite the drawing machine. Another transport chain with carriers is provided and is deflected by guide rollers. These guide rollers are
It is arranged so that the carrier can be carried from the side of the can store opposite the drawing machine to the immediate vicinity of the filling head for filling the flat can and then the flat can can be received by the arm. The guide rollers of the transport chain are
The flat cans are initially arranged so that they can be returned to the cans by means of a carrier which is remote from the cans. In this case, the operating areas overlap because the transport chains are arranged parallel to one another over a range of lengths. Together, the two transport chains form a can replacement means for loading and unloading flat cans. The transport chain simply acts as a traction member. For this reason, a roller way with several rollers is arranged on each side of the transport chain, on which the flat can slides well.

[0003]

This device is costly to construct and manufacture, and is particularly disadvantageous in that the operating procedure can only be controlled at low rotational speeds each time the reciprocating motion changes direction. Due to the low rotation speed, it takes a long time to change the direction. The turn-around time is a lost time in terms of production time. Furthermore, it is not possible to adapt rapidly to changing operating conditions by means of a transport chain as a tension member or a driven roller of a roller way. Further, since the can changing means has a two-piece structure, it is inconvenient that two independent moving devices are required for the flat type can. A further disadvantage is that the independent mobile devices are driven separately and their control requires additional costs. Finally, during operation, a delay is introduced by switching from one mobile device to another.

The object of the present invention is to avoid the above-mentioned disadvantages, in particular to be simple in construction and manufacture, to enable high production rates,
The object is to provide a device of the kind mentioned at the outset, which can be adapted rapidly to changing operating conditions.

[0005]

The above object is achieved according to the invention by the features stated in the characterizing part of claim 1. With the device according to the invention, it is possible to carry out rapid turning movements and reduce the impact of acceleration and braking.
Furthermore, the speed can be flexibly adapted to changing conditions, and for example, the speed for reciprocating motion and the speed for transporting motion can be switched easily and quickly. In both the reciprocating zone and the transport zone, the movement changes directly and even smoothly with each other. Furthermore, it is easy to adapt to different velocities within the two motion states. The predetermined motor rotation speed can be easily adjusted by the microcomputer device. The soft turnover has the advantages of continuously adjusting the reciprocating speed, compensating for the overlap of the sliver coils at the turning points, and continuously adjusting the running speed to and from the can store.

Advantageously, the electric motor is a direct current motor. Suitably the electric motor is an AC servomotor. It is advisable that the electric motor is a frequency-controlled squirrel-cage induction motor. It is preferable that the rotation speed of the electric motor can be continuously adjusted. End points I, II, V
It is advisable that the velocity is accelerated according to a function before reaching. It is preferable that the electric motor is constantly accelerated or decelerated. It is preferred that the electric motor rotate at a constant speed during acceleration and deceleration. Advantageously, an electronic control unit is provided, for example a microcomputer, to which an electric motor for the can moving device is connected. A sensor for the filling amount of the can is preferably connected to the control device. In the control device,
It is advisable to have a displacement sensor, for example an incremental displacement sensor, connected to the current position of the can in the filling stroke a and the conveying stroke b. Suitably, the electric motor can be switched between driving for the filling stroke and driving for the transport stroke.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a drawing machine 1, for example a high-performance drawing machine HS900 manufactured by Trutschler. Eight cans 3 are sent to the sliver guide table 2 from a card (not shown). In the illustrated embodiment, eight slivers 5 taken out from the can 3 are supplied to the drawing machine head 4. The thickness of the discharged sliver corresponds to the thickness of the individually supplied sliver. The sliver is guided above the sliver guide table 2. The can 8 is filled with the newly formed sliver 6 (see FIG. 2) by the filling head 7 which is a part of the drawing machine 1. After the can 8 is filled, it exits the filling head 7. Next, the can 8 is supplied by a can storage device 12 and a can carrier (not shown) of an open-end spinning machine (not shown).

FIG. 2 shows a filling station with a can 8 having a longitudinal section in the filling position. The sliver 6 is supplied to the can 8 through a funnel wheel 7. For the sake of clarity, the sliver 6 is shown only in the short part. The funnel wheel 7 is fixed to a frame (not shown in detail) and rotatably supported. Sliver 6
After being discharged from the drawing machine 1 to the calender rollers, it is fed to the funnel wheel 7 through the two calender rollers in a known manner. The diameter of the funnel wheel 7 substantially corresponds to the width of the can 8 on the narrow side. The can is mounted on the carriage 9. During the filling operation, the reciprocating motion in the directions of arrows A and B is transmitted to the carriage 9 on which the cans 8 are placed by the moving device 10. By doing so,
The whole length of the can moves under the funnel wheel 7. A moving device 10 is provided to transmit this reciprocating motion. This reciprocating motion extends over the filling stroke a (see FIG. 2). The can 8 is at one end of the filling stroke a as shown by the solid line and the can 8'at the other end of the filling stroke a as shown by the broken line. The moving device 10 is driven by an electric motor 11 whose rotation speed is controlled. Empty can storage 12 for empty can 8a
A can storing device 12 including a and a can storing device 12b for the can filling 8b filled with the sliver 6 exists in parallel with the long side of the drawing machine 1. There is an intermediate space 12c between the last empty can 8a and the first full can 8b as seen in the direction of movement (arrows C, D). Sky can 8
a or the full can 8b is on the conveyor belt 13. The conveyor belt 13 rotates endlessly around the guide rollers 13a and 13b, and is driven by the electric motor 14.

During operation, the sliver 6 is discharged from the stationary coiler plate 7 and accommodated in a coil shape, and the can 8 reciprocates during this filling operation. At that time, the empty can 8a is, for example, before the filling operation, the intermediate space 1 between the empty can container 12a and the empty can 8a and the full can 8b.
2c, where it is sent to the filling position. The can 8 is filled with the sliver 6 at this filling position, and the filled can 8 is sent from the filling position to the intermediate space 12c between the empty can 8a and the full can 8b after the filling operation, and from there, for example, the full can. Move to the storage 12b. At this time, as a transport means, there is a moving device 10 having a carriage 9 between the filling position and the empty can storage device and the full can storage device. The transport means is arranged at a right angle to the can storage device 12. The conveying means sends the cans 8 to and from the filling head 7. Sky can 8
Carriage 1 from the intermediate space 12c before filling a
A transshipping device 15 is provided to transship to 0 and to transship the full can 8b from the transport means to the intermediate space 12c after the filling operation. In FIG. 2, the can 8 reciprocates in the directions of arrows A and B on the filling stroke a at the filling position below the funnel wheel 7. In the transfer process b, the empty can 8a moves from the can storage device 12 to the filling position, or the full can 8b moves from the filling position to the can storage device 1.
Move to 2 (arrows L, M).

In FIG. 3, the empty can storage device 12a and the full can storage device 12b form a common can storage device 12 as a constituent unit. The can storage device 12 has a common continuous transport belt 13 that is endlessly wound around the guide rollers 13a and 13b in the directions of arrows E and F. A feed member 40 (FIG. 1) for the cans 8a and 8b is attached on the conveyor belt 13 in a direction transverse to the traveling directions C and D. The guide roller 13b is driven by the electric motor 14. The overall height of the conveyor belt 13 is small.

[0011] FIG. 4 shows the cans loading sorter 15 having a compression and tension arms 15a can move in the direction of arrow I and K. The compression / pull arm 15a has a compression / pull member 15b and is driven by , for example, an electric motor 16. Pneumatic pistons can also be used. In FIG. 5, the moving device 10 has a toothed belt 17 to which a mounting plate 18 for the carriage 9 is fixed. Shaft end 19 for driving a toothed belt guide roller (not shown)
An electric motor 11, for example, a reversible motor is connected to. The sliding member is indicated by reference numeral 20, and the guide in the linear unit is indicated by reference numeral 21.

In FIG. 6, the flat can 8 is vertically mounted on a carriage 9. On the lower side of the carriage 9, a slide guide 22 surrounding a guide rod 23 is attached. The guide rod 23 is supported on the block 24. The other guide rod 23 'is formed as a sliding track, on which the carriage 9 is guided by a guide 25 and slides.

In FIG. 7, an electronic control unit, for example, a microcomputer 26 is provided, to which the electric motor 11 is connected via a motor adjusting unit 27. An electric motor 11, for example a direct-current servomotor or an alternating-current servomotor, is connected to a motor adjusting device 27 through a rotation speed detector 28. The electric motor 11 is connected to the microcomputer 26 via a displacement sensor 29, for example, an incremental displacement sensor. The microcomputer 26 further includes a terminal 30, a sensor 31, an actuator 32, a driving device 16 for the can transposing device 15, a driving device 14 for the can storing device 12, and a measurement control element for controlling and adjusting the drawing machine 1. It is connected.

The displacement sensor 28 is the microcomputer 2
6 is informed of the respective current position of the can 8 to be filled. The length of the travel a of the can 8 during the filling operation is structurally constrained and is specified by the program in the microcomputer 26 (eg turning points I = 0 and II = 100). While the can 8 is not completely filled, it always reciprocates at a predetermined speed v between the two end points (I and II) of the stroke a. As soon as the filling sensor 31 confirms that the maximum filling has been reached, the can 8 is transported over the end point II to the point V. The can 8 is carried laterally out of it and a new empty can 8a is introduced at point V. This sky can 8a
It is seized and moves to the area of stroke a. Here, the filling work is newly started.

The can 8 is the end point (I and I
The speed v for reciprocating between I) is variable and can be specified by the microcomputer 26 to the motor adjusting device 27 as required. In particular, just before reaching the end point, braking can be performed according to a programmable function. Next, when the end point is reached, the direction of movement is changed, and acceleration is performed according to a programmable function (see FIGS. 8A and 8B ). For example, the electric motor 11 can be constantly accelerated or decelerated. It would also be advantageous to be able to properly correct the sliver coil overlap at the turning points by acceleration or deceleration. The speed v at which the can 8 moves in the stroke a during the filling operation depends on the feed speed of the machine (drawing machine 1) and is directly (electronically) synchronized with it.

The speed at which the can 8 moves in the transfer stroke b is
It can be adapted to the can filling of the sliver 6. The moving device 10 can also move a carriage or the like instead of the carriage 9. The present invention also includes an embodiment in which the moving device 10 moves the can 8 directly on a conveying device such as a rollerway.

The relationship between the speed v of the can 8 and the distance s in the filling stroke a between the going (arrow A) and the returning (arrow B) in FIGS. 8A and 8B is shown. The acceleration stroke a1 and the braking stroke a2 are about 160 to 170 mm. In the intermediate stroke a3, the can 8 moves at a constant speed v. The filling stroke a is the total of the acceleration stroke a1, the intermediate stroke a3 and the braking stroke a2. Velocity v = s / t (distance and time quotient).

9 (a) and 9 (b) show the relationship between the acceleration b or deceleration b and the distance s. In a predetermined time, for example, about 1 second, the electric motor 11 (see FIGS. 1 and 2) is accelerated as long as possible in the acceleration stroke a1 with a minimum acceleration, and decelerated as long as possible in the braking stroke a2 with a minimum deceleration. . Acceleration b = s / t2. Of FIG.
(A) and (b) show the relationship between the impact r and the distance s. The impact r must be as small as possible in the acceleration stroke a1 and the deceleration stroke a2 (braking stroke). The impact r is zero in the intermediate stroke a3. At the transition points III and IV from the acceleration stroke a1 or the braking stroke a2 to the intermediate stroke a3, the impact must be zero or almost zero. At the same time, at the turning points I and II, which are the starting points, the impact must be zero or almost zero. Impact r =
s / t3.

[0019]

The device according to the invention enables soft starting and braking with almost no impact. With the above configuration, high filling speed and shock-free starting and braking are achieved.

[Brief description of drawings]

FIG. 1 is a conceptual plan view of a drawing machine for filling a flat can with a conveying means and a can storage device.

FIG. 2 is a plan view of the drawing machine according to FIG.

FIG. 3 is a side view of the can storage device according to FIG.

FIG. 4 is an embodiment of a can transloading device.

FIG. 5 is a partially opened perspective view of the can moving device.

FIG. 6 is a sectional view of a can sliding device.

FIG. 7 is a block diagram of an electronic control unit of the present invention.

8 (a) and (b) of FIG. 8 show the velocity v of the can in the filling stroke a between the going (arrow A) and the returning (arrow B).
And the distance s.

9 (a) and 9 (b) are graphs showing the relationship between acceleration b or deceleration b and distance s.

10 (a) and 10 (b) are graphs showing the relationship between the impact r and the distance s.

[Explanation of symbols]

8 ... Kens 10 ... Moving device 11 ... Electric motor 26 ... Control device 27, 28 ... Motor rotation speed 29 ... Displacement sensor 31 ... Sensor

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-226271 (JP, A) Actual Kaihei 1-159669 (JP, U) Special Table 5-501739 (JP, A) Special Table 6- 507681 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65H 54/76 D01H 9/00

Claims (18)

(57) [Claims] 1. A can for filling a can with a sliver.
Was provided with a moving device for reciprocating, there is provided an apparatus for filling a sliver into cans of elongated cross-section definitive in spinning machinery, the mobile device (10) is reciprocated the cans when filling the sliver cans
The filling process (a), which is continuous with the filling process,
Transport that moves toward or away from the filling process
A conveyor (17) extending along the step (b), and a stand provided on the conveyor for standing and placing a can
(9) for defining the surface of the conveyor and supporting means (20, 21) for supporting the conveyor
And move the can back and forth along the filling and transporting steps.
The conveyor to reciprocate
Electric motor (11) with adjustable rotation speed that drives the bear
And, further, connected to the electric motor to rotate the electric motor.
With a control device (26) including means for setting the number
And equipment shall be the features that are. 2. A Filling position, conveying means (15) is provided between the Ke Nsu storage device, said conveying means (15)
2. The device according to claim 1, wherein the cans (8) can be moved in a direction (L) away from the cans storage or in a direction (M) towards the cans storage (b) during the transport stroke (b). 3. The device according to claim 1, wherein the electric motor (11) is a direct current motor. 4. The device according to claim 1, wherein the electric motor (11) is an AC servomotor. 5. A device according to claim 1, wherein the electric motor (11) is a frequency-controlled squirrel-cage induction motor. 6. The device according to claim 1, wherein the rotational speed of the electric motor (11) is continuously adjustable. 7. Before reaching the end points (I, II, V),
7. The velocity (v) is accelerated according to a function, 1 to 6.
The apparatus according to any one of 1. 8. Device according to claim 1, wherein the electric motor (11) is constantly accelerated or decelerated. 9. The device according to claim 1, wherein the electric motor (11) rotates at a constant speed (v) during acceleration and deceleration. Wherein said control device (26) is composed of a microcomputer, according to any one of claims 1 9. 11. The device according to claim 1, wherein a sensor (31) for the filling amount of the can (8) is connected to the control device (26). 12. A displacement sensor (29), for example an incremental displacement sensor, for the current position of the can (8) in the filling stroke (a) and the conveying stroke (b) is connected to the control device (26). Device according to any one of claims 1 to 11. 13. The electric motor (11) has a filling stroke (a).
13. The device according to any one of claims 1 to 12, which is switchable between a drive for and a drive for the transport stroke (b). 14. The electric motor (11) is accelerated in a predetermined time (t) in an acceleration stroke (a1) as long as possible.
14. Device according to any one of claims 1 to 13, wherein the acceleration (b) is as small as possible. 15. The electric motor (11) is decelerated as long as possible in a braking stroke (a2) at a predetermined time (t),
Device according to any one of claims 1 to 14, wherein the deceleration (-b) is as small as possible. 16. The device according to claim 1, wherein the impact r = s / β is as small as possible during the acceleration stroke (a1) during acceleration and during the braking stroke (a2) during deceleration. . 17. An acceleration stroke (a1) or a braking stroke (a)
Transition point (III, IV) from 2) to intermediate step (a3)
17. The device according to any one of claims 1 to 16, wherein the shock r is zero or near zero. 18. The method according to claim 1, wherein the impact r is zero or almost zero at the turning point (I, II).
The device according to paragraph.