JP3549939B2 - A device for filling cans with a longitudinal section in a spinning machine - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to an apparatus for filling a sliver such as cotton or chemical fiber into a can having a longitudinal section (flat can) in a spinning machine, for example, a drawing machine, and the sliver is discharged from a stationary coiler plate and housed in a ring shape. During the filling operation, the can reciprocates in the vertical direction, and a conveying means is provided between the filling position and, for example, an empty can storage unit and a full can storage unit. The present invention relates to a type capable of reciprocating at a filling position and moving from or toward the filling position in a transport stroke.
[0002]
[Prior art]
In the known method (WO 91/18135), empty cans and full cans are arranged one after the other. These two can storages are each provided with a can exchange means configured as a transport belt or a transport chain. These conveyor belts or chains are turned by guide rollers immediately adjacent to another conveyor belt or chain. The conveyor belt or chain extends from the can storage to the vicinity of the filling head of the drawing machine and is turned by guide rollers. The transport chain drives the carrier, which grabs the flat can and transports it to the filling head area. Here, the flat can is received by the two arms of the can exchange means configured as a reciprocating device. The arms can be pivoted back from the flat can area so that the flat cans can be transported by the conveyor belt to the reciprocating area of the drawing machine, and then move towards each other to form a grip to interpose the flat cans. Can be tightly clamped. This reciprocating device is necessary because, unlike the case where the sliver is housed in a round can, the sliver cannot be evenly distributed on the flat can depending on the stacker head of the drawing machine. In order not to impair the reciprocating movement required for filling the flat cans, the transport chain is returned from the reciprocating zone of the drafting machine to a basic position of the can storage which is opposite the drafting machine on the can storage. Another transport chain with a carrier is provided, which is turned by guide rollers. These guide rollers are arranged so that the carrier can be carried from the side of the can housing opposite the drawing machine to the immediate vicinity of the filling head for filling the flat can, so that the flat can is then received by the arm. Can be The guide rollers of the transport chain are arranged in such a way that the flat cans can be returned to the can housing by means of a carrier which is initially opposite the can housing. In this case, since the transport chains are arranged parallel to one another over a certain length, the working areas overlap. The two transport chains together form a can exchange means for loading and unloading flat cans. This device is costly in construction and manufacture. In particular, since the can replacement means has a two-body configuration, it is disadvantageous that two separate moving devices are required for a flat can. A further disadvantage is that the separate moving devices are driven independently, and controls for them have to be provided at additional cost. Finally, there is a delay caused by switching from one mobile device to the other while driving.
[0003]
[Problems to be solved by the invention]
It is an object of the present invention to provide a device of the type mentioned at the outset, which avoids the above-mentioned disadvantages, in particular is simple in construction and manufacture, enables high production rates and can be quickly adapted to changing operating conditions. is there.
[0004]
[Means for Solving the Problems]
The above object is achieved according to the present invention by the features described in the characterizing part of claim 1.
Due to the provision of only one movement device for the two movements of the cans, namely the reciprocating movement in the filling position and the transport movement from or to the can storage, the device of the invention is Structure and fabrication are much simpler. Another advantage is that the production speed can be increased since the switching between the two exercise states is performed in a short time. These two movements transition directly and without stagnation. Furthermore, it is easy to adapt to different speeds in the two movement states. Switching between the two motion states can be easily realized within the same control device.
[0005]
[Action]
Preferably, said moving device is attached to a spinning machine, for example a drawing machine and a can storage. Conveniently the moving device is arranged below or beside the can. It is expedient that the moving device moves a carriage or a trolley on which the can is placed. Advantageously, said moving device moves the can on a transport device, for example a roller way. It is preferable that the moving device has a driving member that rotates endlessly, for example, a toothed belt. Advantageously, the moving device has a drive, for example an electric motor. Advantageously, the electric motor is a reversible motor. Advantageously, the electric motor is rotationally controlled. Preferably, the electric motor is a DC motor or an AC servomotor. Advantageously, an electronic control unit, for example a microcomputer, is provided, to which the electric motor for the can moving device is connected. It is expedient if a sensor for the filling of the can is connected to the control device. Advantageously, a displacement sensor for the current position of the can in the filling stroke and the transport stroke, for example an incremental displacement sensor, is connected to the control device. Preferably, the electric motor is switched between driving for a filling stroke and driving for a conveying stroke.
[0006]
Hereinafter, embodiments of the present invention will be described 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 from the card (not shown) to the sliver guide table 2. In the illustrated embodiment, eight slivers 5 taken out of 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 newly formed sliver 6 (see FIG. 2) is filled in the can 8 by a filling head (funnel wheel or coiler plate) 7 which is a part of the drawing machine 1. After the cans 8 have been filled, they leave the filling head 7. Next, the can 8 is sent to an open-end spinning machine (not shown) by a can storage unit 12 and a can transporter (not shown).
[0007]
FIG. 2 shows the filling station with the can 8 having a longitudinal section in the filling position. The sliver 6 is supplied to the can 8 through the filling head 7. For the sake of clarity, only a short portion of the sliver 6 is shown. The filling head 7 is rotatably supported by being fixed to a frame (not shown in detail). After the sliver 6 has been discharged from the drawing machine 1 to the calendar rollers, it is supplied to the filling head 7 through the two calendar rollers in a known manner. The diameter of the filling head 7 substantially corresponds to the width of the can 8 on the narrow side. Kens is on the carriage 9. During the filling operation, the reciprocating movement in the directions of arrows A and B is transmitted to the carriage 9 on which the can 8 is placed by the moving device 10. In doing so, the can moves the entire length below the filling head 7. A moving device 10 is provided for transmitting the reciprocating motion. This reciprocation 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 'is at the other end of the filling stroke a as shown by the dashed line. The moving device 10 is driven by an electric motor 11 whose rotation speed is controlled. Parallel to the long side of the drawing machine 1, there is a can storage unit 12. The can storage unit 12 includes an empty can storage unit 12a for the empty can 8a and a full can storage unit 12b for the full can 8b filled with the sliver 6. Looking in the direction of movement (arrows C, D), there is an intermediate space 12c between the last empty can 8a and the first full can 8b. The empty can 8a or the full can 8b is on the conveyor belt 13. The conveyor belt 13 circulates around guide rollers 13a and 13b endlessly, and is driven by an electric motor 14.
[0008]
In operation, the sliver 6 is ejected from the filling head 7 and accommodated in a ring shape, and the can 8 reciprocates during this filling operation. At this time, the empty can 8a moves from the empty can storage unit 12a to the intermediate space 12c between the empty can 8a and the full can 8b before the filling operation, and is sent to the filling position therefrom. At this filling position, the can 8 is filled with the sliver 6, and after the filling operation, 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, from which it is filled, for example, with a full can. Move to storage 12b . At this time, there is a moving device 10 having a carriage 9 as a transport means between the filling position and the empty can storage device and the full can storage device. The transport means is arranged at right angles to the can storage device 12. The transport means sends the cans 8 from and to the filling head 7. A reloading device 15 is provided to reload the empty cans 8a from the intermediate space 12c to the carriage 9 before the filling operation and to reload the full cans 8b from the transport means to the intermediate space 12c after the filling operation. In FIG. 2, the can 8 reciprocates in the filling stroke a in the directions of arrows A and B at the filling position below the filling head 7. In the transport step b, the empty can 8a moves from the can storage unit 12 to the filling position, or the full can 8b moves from the filling position to the can storage unit 12.
[0009]
In FIG. 3, the empty can storage unit 12a and the full can storage unit 12b form a common can storage unit 12 as a constituent unit. The can storage unit 12 has a common continuous transport belt 13 that rotates around guide rollers 13a and 13b endlessly in the directions of arrows E and F. On the conveyor belt 13, a feeder 13c (FIG. 1) for the cans 8a and 8b is mounted in a direction transverse to the traveling directions C and D. The guide roller 13b is driven by the electric motor 14.
[0010]
Figure 4 shows the cans loading sorter 15 having a compression and tension arms 15a. Cans transfer device 15 has a compact tension arms 15a, compression and tension arms 15a can be moved in the direction of arrow I and K with compact tension member 15b provided thereto. The compression / tension arm 15a 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. An electric motor 11, for example, a reversible motor, is connected to a shaft end 19 for driving a toothed belt guide roller (not shown). The sliding member is indicated by reference numeral 20 and the guide in the linear unit is indicated by reference numeral 21.
[0011]
In FIG. 6, a flat can 8 is mounted on a carriage 9 in a vertical direction. The carriage 9 has a slide guide 22 surrounding the guide rod 23 on the lower side. The guide rod 23 is supported on a block 24. The other guide rod 23 ′ is formed as a slide track, on which the carriage 9 slides and is guided by a guide 25.
[0012]
In FIG. 7, an electronic control unit, for example, a microcomputer 26 is provided, and the electric motor 11 is connected to the electronic control unit 27 via a motor adjusting device 27. An electric motor 11, for example a DC servomotor or an AC servomotor, is connected to a motor control 27 via a speed detector 28. The electric motor 11 is connected to a microcomputer 26 via a displacement sensor 29, for example, an incremental displacement sensor. The microcomputer 26 further comprises a terminal 30, a sensor 31 and an actuator 32, a drive 16 for the can reloading device 15, a drive 14 for the can storage 12, and measurement control elements for controlling and adjusting the drawing machine 1. It is connected.
[0013]
The displacement sensor 29 informs the microcomputer 26 of the current position of the can 8 to be filled. The length of the travel a during which the can 8 moves during the filling operation is structurally limited and is specified by the program to the microcomputer 26 (for example, turning points I = zero and II = 100). The can 8 always reciprocates at a predetermined speed v between the two end points (I and II) of the stroke a until it is completely filled. As soon as the filling sensor 31 confirms that the maximum filling has been reached, the can 8 is transferred past the end point II to the point III. From there the cans 8 are carried laterally and a new empty can 8a is thrown in at point III. This empty can 8a is grasped and moves to the area of the travel a. Here, a new filling operation starts.
[0014]
The speed v at which the cans 8 reciprocate between the end points (I and II) of the stroke a is variable and can be specified by the microcomputer 26 to the motor control device 27 on demand. 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 accelerated according to a programmable function (see FIGS. 8 (a) and 8 (b)). For example, the electric motor 11 can be constantly accelerated or decelerated. The speed v at which the cans 8 travel the stroke a during the filling operation depends on the feed speed of the machine (drawing machine 1) and is directly (electronically) synchronized therewith.
[0015]
The speed at which the can 8 moves in the transport stroke b can be adapted to the can filling of the sliver 6.
Instead of the carriage 9, a carriage or the like can be moved by the moving device 10.
The present invention also includes an embodiment in which the moving device 10 moves the can 8 directly on a transport device such as a roller way.
[Brief description of the drawings]
FIG. 1 is a conceptual plan view of a drawing machine for filling a flat can having a conveying means and a can housing.
FIG. 2 is a front view of the drawing machine of FIG. 1;
FIG. 3 is a side view of the can housing of FIG. 1;
FIG. 4 shows an embodiment of the can reloading device.
FIG. 5 is a perspective view showing the can moving device with a part cut away.
Figure 6 is a sectional view of the can move device.
FIG. 7 is a configuration diagram of an electronic control device of the present invention.
8 (a) and 8 (b) are graphs respectively showing the relationship between the movement speed of the can and the filling stroke a.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Drawing machine 7 ... Filling position 8 ... Can 8a ... Empty can 8b ... Full can 10 ... Moving device 11 ... Electric motor 17 ... Toothed belt 26 ... Control device 29 ... Displacement sensor 31 ... Sensors A, B, L, M: Moving direction

Claims (14)

An apparatus for filling a sliver, such as cans in cotton and chemical fiber longitudinal cross section definitive in spinning machinery, sliver is accommodated in a ring shape cans from the filling head, reciprocating cans in the longitudinal direction during the filling operation A transport means is provided between the filling position and the empty can storage unit and the full can storage unit.The can can reciprocate at the filling position, and can be moved from the filling position during the transfer process or from the filling position. In the type capable of moving toward the position, the filling step (a) and the conveying step (b) are formed continuously, and the cans (8, 8 ') are reciprocated (A, B) in the filling step (a). And a moving device (10) which can be moved in a direction (L) away from the filling position (7) or in a direction (M) toward the filling position (7) in the transport step (b). Provided It characterized the door, equipment. 2. The device according to claim 1, wherein the moving device (10) is associated with a spinning machine, for example a drawing machine (1) and a canister (12). Device according to claim 1 or 2, wherein the moving device (10) is arranged below or beside the can (8). 4. The device according to claim 1, wherein the moving device (10) moves a carriage (9) carrying a can (8), a trolley or the like. 5. The device according to any of the preceding claims, wherein the moving device (10) moves the can (8) on a transport device, for example a roller way. The device according to any one of the preceding claims, wherein the moving device (10) comprises an endless orbiting drive member, for example a toothed belt (17). The device according to any one of the preceding claims, wherein the moving device (10) has a drive, for example an electric motor (11). Apparatus according to any of the preceding claims, wherein the electric motor is a reversible motor. The device according to any one of claims 1 to 8, wherein the electric motor is speed-controlled. The device according to any of the preceding claims, wherein the electric motor (11) is a DC motor or an AC servomotor. 11. The device according to claim 1, wherein an electronic control unit (26) is provided, for example a microcomputer, to which the electric motor (11) for the can moving device (10) is connected. . Device according to any of the preceding claims, wherein a sensor (31) for the filling of the can (8) is connected to the control device (26). 13. The control device (26) is connected to a displacement sensor (29) for the current position of the can (8) in the filling stroke (a) and the transport stroke (b), for example an incremental displacement sensor. An apparatus according to any one of the preceding claims. 14. The device according to any one of the preceding claims, wherein the electric motor (11) is switched between driving for a filling stroke (a) and driving for a conveying stroke (b).

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