CZ286191B6 - Device for delivering wound bobbins from textile machine winding-up motions - Google Patents

Abstract

The invented device for delivering wound bobbins (50) from textile machine winding-up motions (4) of at least in one row side-by-side arranged working stations of a textile machine contains a transport equipment (6) of the wound bobbins (50) being arranged in the direction of the textile machine length and being formed by a pair of conveyor belts (60, 61) situated in vertical direction one above another and containing at least one handling equipment (7) with the wound bobbins (50) that is mounted in shiftable manner in the direction of the textile machine length with a possibility of stopping at a selected working station requiring handling the wound-up bobbin (50). Each conveyor belt (60, 61) of the transport equipment (6) is situated within the reach of at least one wound bobbin (70) handling equipment (7).

Description

Apparatus for removing coiled windings from the winding mechanisms of a textile machine

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for discharging winding reels from winding devices in at least one row of side-by-side workstations of a textile machine, comprising a winding coil conveying device arranged in machine direction and comprising a pair of conveyor belts winding coil device, which is adjustable in the machine length direction with the possibility of stopping at a selected working position requiring handling of the winding coil.

BACKGROUND OF THE INVENTION

Several arrangements of devices for removing wound bobbins from the winding devices of textile machines are known which correspond to the arrangement of these textile machines. One arrangement of the textile machine comprises a one-sided machine with one row of side-by-side workstations, and the other arrangement comprises a two-sided machine which is provided with a row of side-by-side workstations on both sides. In both the single-sided textile machine and the double-sided textile machine, the device for guiding the wound bobbins from its winding devices is arranged with respect to the other nodes of the machine, i.e. for example, in a space in front of or above a series of jobs or between two series of jobs. The particular location of this device is thus determined by the requirements for further machine operation, so that, for example, in an open-end spinning machine, it cannot be placed in front of a number of workplaces because of the need to change the watering cans. machinery.

One of the devices for removing wound bobbins from the winding devices of a two-sided textile machine consists of one conveyor belt situated along the entire length of the machine between the two rows of winding points of the machine. A slip surface is then located from each winding point in the direction of the conveyor belt, over which the wound spool rolled off from the winding point is rolled onto the conveyor belt.

This device is very simple, but carries a significant disadvantage in the form of defects in the winding of the wound bobbins on the conveyor belt when the wound bobbin is already deposited on the conveyor belt at the service point, which is discharged outside the machine. In such a case, intervention of the operator of the machine is necessary, and the operation of the workstation is restored for safety reasons only after this condition has been removed, thereby increasing the loss times of the machine. Similar problems arise when the opposed wound bobbins on both sides of the machine simultaneously slip off. This device can also be used in single-sided textile machines, in which they are situated in the same position with respect to many workstations.

In order to overcome the drawbacks of this solution, it has therefore been proposed to arrange a pair of conveyor belts located side by side between the winding points of the machine so that each side of the machine has a separate conveyor belt.

While this arrangement solves the situation arising from the simultaneous slipping of the wound spools from opposite winding points, each of these spools being placed on the respective conveyor belt, this solution does not eliminate the drawbacks when the conveyor belt of the respective side of the machine is already stored a wound bobbin so that the bobbin that has just been slipped cannot be deposited on the conveyor belt and cannot be deposited on the secondary belt since it is intended for the second row of workstations. Using a pair of conveyors side by side is indeed

The likelihood of such a situation is reduced, but only at the expense of the machine width increase, which is another significant drawback of this arrangement.

Therefore, other possible solutions have been sought until the arrangement disclosed in CS patent specification 275 340 86 has been proposed, which describes a method for conveying coils from winding points to a conveyor belt, in particular in a double-sided open-end spinning machine and apparatus for carrying out this method. between the rows of winding points situated, conveyor belt. This solution describes a method in which the bobbins slid off the winding points are guided along the inclined guide paths of the winding spots to the edge of the conveyor belt, wherein the bobbins slid off from either side of the machine are at least mechanically retained at the edges of the conveyor belt. the retained coils from the selected side of the machine are continuously lowered to the standing conveyor belt at technological intervals. The spools located on the opposite side of the machine are pushed or held on the guide tracks and lowered onto the conveyor belt when the conveyor belt is released. The apparatus described in this patent has at least one support bar in the space above the conveyor belt, which can be rotatably adjusted to several selectable angular positions and has guides with guides which in their basic position reach at least the space between the opposing guide rails. paths of spun coils.

The device operates in such a way that on the respective side of the machine with a restraint on the guide arms, it collects a certain number of slipped bobbins, which are subsequently released on the conveyor belt by subsequent movement of the arms. It is now necessary to wait for a number of bobbins to be removed from the machine and only then can the bobbins slipped from the other side of the machine be lowered onto the conveyor belt.

However, this arrangement is particularly disadvantageous for high-performance machines, where the need to wait for the entire portion of the conveyor belt to be emptied before storing the other slumped spools limits the spinning and subsequent spinning of workpieces whose guide arms are diverted from their guideways so this could result in uncontrolled placement of the spooled bobbins on the conveyor belt or impinge directly into the bobbins stored on the conveyor belt and transported outside the machine, with all negative consequences for the fluency of individual workstations on both sides of the machine and hence for machine utilization.

Another method and apparatus for removing wound bobbins from the winding machines of a textile machine and for transporting them to the end of a textile machine with a plurality of winding machines, which are serviced sequentially by a bobbin changing device, wherein a conveyor belt is guided along the textile machine. No. 24 51001 C2. The spool change apparatus is displaceably mounted over a plurality of machine workstations, and includes a transfer flap that moves the wound spool upon arrival of the spool change apparatus from the machine workstation winding device to a storage device located on the spool change apparatus and provided for receiving a single coil while being located above the conveyor belt of the machine. In this storage device, the spool lies on a pair of hinged flaps that are actuated, and by gradually opening it, the spool is slowly released so that it falls from a slight height onto the conveyor belt of the machine where the conveyor belt is empty and then discharged to the end of the machine.

The disadvantage of this device is that, before the spool is released from the storage device, it cannot slip off another wound spool at a different winding point, which again reduces the flow of machine operation, since it is necessary to wait for the spool to release from the storage device. replace the wound spool with an empty tube and then renew the spinning.

The device disclosed in US Pat. No. 4,615,493, which discloses an apparatus for winding and storing wound bobbins from a one-sided winding machine. This machine comprises a plurality of side-by-side workstations, each workstation comprising three mutually superposed winding devices. In the space in front of this series of winding spots there is a storeyed stack of tubes and coils. Between this row of winding devices and the bunker, there is an adjustable device for doffing and storing the wound bobbins and replacing them with cores. Prior to replacing the wound bobbin with the sleeve, the control unit removes the sleeve from above, then spins the wound bobbin into an empty space in the container after the sleeve is removed, then inserts the sleeve into the take-up device and resumes winding.

The machine designed in this way is fully automatic, but it is very complex and therefore expensive, so its operation is advantageous only for highly productive machines for economic reasons. In addition, this device is bulky and heavy, so it is intended for use on floor-mounted rails, which prevents this solution from spinning machines.

Further, several devices are known for discharging wound bobbins from the windings of a textile machine comprising a plurality of side-by-side workstations (see US Pat. No. 4,567,194 and US Pat. No. 4,690,342). These devices comprise auxiliary stacks of wound bobbins situated in the longitudinal direction of this series of workstations, to which a conveyor belt is assigned for conveying these wound bobbins away from the textile machine. These devices only solve the situation where it is not possible to place the wound bobbins on the conveyor belt, because it is full, because the wound bobbins are not removed for some reason outside the machine. In such conceived devices there is accumulation of wound bobbins in the machine space, resp. These coils have to be put back from the intermediate reservoirs onto the conveyor belt and are only now removed from the machine, thus reducing the smoothness of the machine, which is a major disadvantage of this solution.

It is an object of the invention to overcome or at least minimize the disadvantages of the prior art.

SUMMARY OF THE INVENTION

The object of the invention is achieved by a device for removing wound bobbins from the winding devices of a textile machine, the principle being that the two conveyor belts of the conveying device are movable in the same direction towards the end of the textile machine intended to take the wound bobbins from both conveyor belts. The device thus conceived makes transporting the wound bobbins more efficient on a textile machine.

Advantageously, the displaceably mounted handling device is arranged parallel to the conveyor belts of the conveyor and is provided with a coil gripping means which is attributable to the servicing winding device and to both conveyor belts of the conveyor.

In one embodiment of the device on a double-sided textile machine, each side of which is associated with at least one coil handling device, the manipulating devices which are disposed parallel to the conveyor belts of the conveying device are preferably provided with a coiled gripping means assignable to the two conveyor belts. The gripping means of each handling device is adjustable to provide the same orientation of the wound spools placed on the respective conveyor belt.

In another embodiment of the apparatus on a double-sided textile machine, each side of which is associated with at least one coil handling device, the movably mounted handling devices are preferably disposed parallel to the conveyor belts of the conveying device and are provided with a coiled gripping means. belt.

On at least one side of the double-sided machine, the gripping means is preferably coupled to the positioning means to ensure the same orientation of the wound bobbins on both conveyor belts.

-3GB 286191 B6

The handling device is preferably mounted on the machine operating station.

According to another preferred embodiment, the handling device is mounted on the winding coil winding device.

The conceived device for withdrawing the wound bobbins from the winding devices of the textile machine improves the parameters of the winding of the wound bobbins from the workstations of the textile machine, since it enables the use of two conveyor belts for one winding machine. Since the probability of simultaneous occupation of the two conveyor belts by the wound spool at the service point is low, this device achieves a higher fluency of operation of the handling device, which also affects the fluency of the textile machine as a whole.

Overview of the drawings

1 is a cross-sectional view of an open-end spinning machine with a winding device, and FIG. 2 is a side view of a portion of an open-end spinning machine with a winding device.

DETAILED DESCRIPTION OF THE INVENTION

The arrangement of the device for withdrawing the wound bobbins 50 from the winding devices 4 of the textile machine will be described on a double-sided open-end spinning machine.

This open-end spinning machine has workstations placed side by side along its entire length along its length. Each work station comprises a spinning unit 1 arranged at a predetermined height above the machine base and below it with space for accommodating a sliver can. Above the spinning unit 6 there is a yarn draw-off device 2, over which a known yarn distribution device 3 and a winding device 4 for winding the yarn onto a sleeve 5, which are rotatably supported therein in known swivel arms 40 and driven in a known manner . A conveyor device 6 of the wound spools 50 is disposed between the two rows of winding machines 4 along the entire length of the spinning machine. The conveying device 6 is part of the service device 8, which is movable along the work stations either on one or both sides of the spinning machine and is able to stop at the work station. which requires manipulation of the wound bobbin 50. More than only one service device 8 can move along the entire periphery of the spinning machine. In such a case, each of these groups of service devices 8 only serves a certain number of working machines. or a certain side of the machine. The keypad is capable of operating all workstation nodes. In the exemplary embodiment shown in the drawing, the service device 8 is movable along the tracks 80 that are part of the machine. In another non-illustrated embodiment, the service device 8 is movable by other suitable means.

In another embodiment (not shown), the handling device 7 is mounted on a winding device of the wound bobbins 50, which is movable along the winding devices 4 of the machine workstations with the possibility of stopping at the work station requiring handling of the wound bobbin 50.

-4GB 286191 B6

The coil conveyor 6 includes a pair of vertically stacked conveyor belts 60 and 61 that are coupled to the drive. The lower conveyor belt 60 and the upper conveyor belt 61 are either coupled with a common drive, or each is coupled with a separate drive. The two conveyor belts 60, 61 extend at least from the level of the first work station to the opposite end of the spinning machine, where the coils 50 are wound from the two conveyor belts 60, 61 by some of the known methods and / or devices. In the exemplary embodiment shown in the drawing, the upper, i.e., working, surface of each of the conveyor belts 60, 61 has a known double-sided tapered profile to increase the stability of the wound bobbins 50 mounted on the upper surface of the conveyor belts 60, 61. 60, 61 a flat top surface, and the stability of the wound bobbins 50 mounted on these conveyor belts 60, 61 is ensured by another suitable method, for example, raised side edges along the entire length of the two conveyor belts 60, 61.

The handling device 7 for removing the wound spools 50 from the winding devices 4 and placing them on the conveying device 6 comprises a wound spool gripping means 70, which is coupled with known positioning means (not shown) to orient the gripping means 70 with the wound spool 50 to the desired position. to which of the conveyor belts 60, 61 and / or from which side of the machine the wound bobbin 50 is deposited. The positioning means are known to be sliding, tilting and rotating elements which are suitably coupled to one another in any suitable combination.

The apparatus for discharging the wound bobbins 50 from the textile machine winding devices 4 is further provided with a control unit coupled to the control computer of the respective spinning machine node.

The device works as follows:

After winding the bobbin 50, it is stopped, lifted from the drive roller of the winding device 4 and subsequently gripped by the gripping means 70 of the handling device 7. Because all the bobbin 50 wound must be uniformly oriented towards the conveyor device 6 , the position of the yarn end 3 on the wound bobbin 50 is determined in some known manner, and the gripping means 70 is then either rotated in a known manner or remains in its starting position. The wound coil 50 grasped by it is correctly oriented with respect to the conveying device 6. Subsequently, the wound coil 50 is moved to the conveying device 6 by movement of the gripping means 6 and deposited thereon. On one side of the machine, according to the first exemplary embodiment, the wound spools 50 are deposited on the lower conveyor belt 60, while on the opposite side of the machine the wound spools 50 are deposited on the upper conveyor belt 61. 61, which is detected by some of the known methods before the gripping means 70 has been completed, the gripping means 70 is moved accordingly to transfer the held coil 50 to the second conveyor belt 61 or 60 where it is stored and by moving the second conveyor belt 61 or 60 away from the spinning machine. If neither conveyor belt 60 or 61 has a place for storing the wound bobbin 50 at the service station, the gripping means 70 will return to the position in front of the starting conveyor belt 60 or 61 and on the path of the handling device 7 to the next station. to be searched for by the operator to find a free space on the first conveyor belt 60 or 61, and then deposit the coil 50 wound thereon. The wound bobbin 50 thus stored is then discharged outside the spinning machine. The probability that a different wound spool 50 is located on both conveyor belts 60, 61 is very small at the respective work station location, so that the overall occurrence of finding free space on the respective conveyor belt 60, 61 when moving the service device 8 is small.

According to another embodiment not shown, the wound bobbins 50 on a double-sided machine are deposited on the respective conveyor belt 60, 61 in the original orientation in which they are located in the winding device 4, the end of each conveyor belt 60, 61 being assigned separately

In this embodiment, the time required to remove the wound bobbin 50 from the winding device 4 and place it on the respective conveyor belt 60, 61 by the time it takes to change the orientation of the wound bobbin 50. at the service station, the service device 8 places the wound spool 50 on the respective conveyor belt 60, 61, stores it in the free space of the respective conveyor belt 60, 61 as it moves to the next service station. This solution requires simpler working means for the gripping means 70 of the handling device 7, since the means for changing the orientation of the wound bobbin 50 is omitted. In this solution, it is possible that at least one side of the machine the gripping means 70 is coupled to the positioning means to provide the same orientation coils 50 on both conveyor belts 60, 61.

The solution also permits manipulation of the wound bobbins 50 other than described when placing them on two superimposed conveyor belts 60, 61 for discharging the wound bobbins 50 from the windings of the textile machine.

In a textile machine, this solution greatly increases the capacity of the conveyor device 6 to take the wound bobbins 50 away from the textile machine, and thereby the continuity of its operation.

Claims (7)

PATENT CLAIMS A device for removing coiled coils from winding devices in at least one row of side-by-side workstations of a textile machine, comprising a coil conveying device arranged in a machine length direction and comprising a pair of vertically stacked conveyor belts and comprising at least one handling device winding spools which are displaceably mounted in the machine length direction with the possibility of stopping at a selected working position requiring handling of the wound spool, characterized in that each of the conveyor belts (60, 61) of the conveying device (6) is situated within reach of at least one handling a device (7) with wound coils (70). Apparatus according to claim 1, characterized in that a handling device (7) disposed in parallel to the conveyor belts (60, 61) of the conveying device (6) is provided with a gripping means (70) of the wound bobbins (50) attributable to the operator a winding device (4) and both conveyor belts (60, 61) of the conveyor device (6). Device according to claim 1, on a double-sided textile machine, each side of which has at least one handling device with associated bobbins, characterized in that the handling devices (7) are displaceably mounted parallel to the conveyor belts (60, 61) of the conveying device (6). provided with a gripping means (70) of the wound bobbins (50) attributable to the two conveyor belts (60, 61), wherein at least one conveyor belt (60, 61) the gripping means (70) of each handling device (7) is adjustable to provide the same orientation the wound bobbins (50) deposited on the respective conveyor belt (60, 61). Device according to claim 1, on a double-sided textile machine, to each side of which at least one coil handling device is associated, characterized in that the handling devices (7) are displaceably mounted parallel to the conveyor belts (60, 61) of the conveying device (6). ) are provided with a gripping means (70) of wound bobbins (50) which can be assigned to a different conveyor belt (60, 61) on each side of the machine. -6GB 286191 B6 Device according to claim 4, characterized in that on at least one side of the machine the gripping means (70) is coupled to the positioning means to ensure the same orientation of the wound bobbins (50) on both conveyor belts (60, 61). 5 Device according to claims 1 to 5, characterized in that the handling device (7) is mounted on the machine operating device (8) of the machine. Device according to claims 1 to 5, characterized in that the handling device (7) is mounted on the winding device of the wound bobbins (50).