EP0548310A1

EP0548310A1 - Device and process for changing skeins on a textile machine

Info

Publication number: EP0548310A1
Application number: EP92913723A
Authority: EP
Inventors: Markus Erni; Isidor Fritschi; Christian Bai
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 1991-07-12
Filing date: 1992-07-09
Publication date: 1993-06-30
Also published as: WO1993001336A1

Abstract

L'invention concerne le chargement du râtelier de métiers à filer. Les solutions connues de l'état de l'art ne peuvent en partie pas être universelement appliquées et sont d'un positionnement difficile. Il est donc proposé d'utiliser des éléments permettant de mettre l'appareil mobile (10) en position de chargement du râtelier. Le positionnement est assuré d'une part par une initialisation du râtelier (2) et d'autre part par l'utilisation de trajets mis en mémoire de déplacement (S1).The invention relates to the loading of the rack of spinning looms. The solutions known from the state of the art cannot in part be universally applied and are difficult to position. It is therefore proposed to use elements allowing the mobile device (10) to be placed in the rack loading position. Positioning is ensured on the one hand by an initialization of the rack (2) and on the other hand by the use of paths stored in displacement memory (S1).

Description

Device and method for changing containers on a textile machine

The invention relates to a gate loading of a spinning machine with a mobile device according to the preamble of claim 1.

Various possibilities are known from practice and from the patent literature for changing the roving bobbins on a ring spinning machine.

In the case of a purely manual change, the roving bobbins produced in a flyer are temporarily stored in a trolley by hand and moved to a ring spinning machine. The roving bobbins are then exchanged by hand in a wild change or a block change for empty bobbins or sleeves on the ring spinning machine. In order to transfer the roving from the roving bobbins, they are suspended above the drafting unit of the ring spinning machine. Corresponding to the division of the spinning positions, two roving bobbins, for example, are hung next to one another, seen on one side, transverse to the longitudinal axis of the spinning machine. A mirror-image arrangement is provided on the opposite long side. As a rule, the roving bobbins are suspended in hanging pins above the head of the operator. The suspension for the roving bobbins with the corresponding frame parts and supports is generally referred to as a gate. The manual exchange of the empty sleeves for the reserve bobbins provided in the carriage requires a great deal of effort for the operator, especially since the roving bobbins can weigh up to 2.5 kg. The paths for removing the empty sleeve and for transferring the roving bobbin into the creel are relatively long, which means that the changing process is time-consuming. This means that the operator is tied to a spinning machine for the changeover process for a long time.

To improve this simple manual principle, various semi-automatic and fully automatic devices have been proposed and in some cases also implemented in practice.

For example, Transport rails running parallel to the gate, via which the reserve spools are automatically transferred from the flyer to the ring spinning machine by means of a carrier train. The gate is provided with an additional third suspension position, which is used to hold a reserve spool. In this system, the roving bobbins in progress have a packing thickness or diameter that decreases inwards, as a result of which the inner bobbin runs out first, thereby allowing the reserve bobbin to be pushed in from the outside. With this system, the empty sleeve is transferred to a discharge conveyor, which is attached in the longitudinal center of the spinning machine. The roving bobbins are transferred from the carrier train to the reserve point in the creel by means of a switch which is carried along or running with the carrier train. Such a system is e.g. can be seen from DE-OS 40 00 227.

The tracking of a reserve coil from a third reserve position in the gate is also evident from DE-OS 37 23 142. Here, the replacement of the empty sleeve and the tracking of a reserve spool is carried out by means of a changing device provided with gripper arms. A separate feed device via a transport rail is not provided here. Furthermore, a system is known from DE-PS 30 34 477, wherein roving bobbins which are guided over a longitudinal rail track extending in the machine longitudinal direction are delivered via transition pieces on transverse rail tracks. The transition pieces are designed in the form of an adjustable switch.

EP-PS 259 267 shows a spinning machine, wherein two suspension points for the roving bobbins are attached transversely to the longitudinal direction in the creel. An additional guide rail is arranged above these suspension parts, in which full roving bobbins are kept in reserve by means of hanging bobbin devices. The exchange of empty sleeves against the full roving bobbins provided takes place in pairs and via an operating device, the bobbins or sleeves being picked up and repositioned by means of pins which can be displaced at a distance.

The use of an additional third reserve position in the gate, as described above, requires a more complex and wider version of the gate. In addition, additional devices or methods must be used to track the external reserve coil. The fully automatic transfer of the reserve coils from a provided carrier train by means of switches results in a convenient solution, but this system is correspondingly complex and therefore expensive and is not suitable for all applications. Likewise, it is the case with additional operating devices or operating robots, which, with appropriate devices, carry out the transfer of the full reserve coils to the gate or a removal of the empty sleeves.

From DE-OS 37 34 258 a device for transporting cans to a textile machine is known, the cans being transported individually or in a train on a hanging wagon. On the basis of the known prior art, the invention now has the task of creating a simple and inexpensive method or a device which relieves the operator and enables an optimally changing process.

This object is achieved by the characterizing part of patent claim 1. In particular, it is proposed that means are provided to position the mobile device for the gate loading with containers in relation to the gate. This enables the mobile device to be automatically transferred to the subsequent exchange point.

Furthermore, the positioning of the mobile device with respect to the gate is proposed by initialization on the gate and by stored travel paths. The result of this is that the traversing movement of the device is optimally adapted to the spatial conditions of the gate, and an exact and fast positioning to the exchange point takes place. This advantage can come into play both in the case of fully automatic and manual loading. As further proposed, this system is particularly suitable for exchanging the coils or sleeves of the long sides located in the inner and outer rows in blocks.

If there are still a few turns of the roving on the exchanged sleeve, one can also speak of an empty bobbin. However, this expression should not be considered restrictive for the request for protection.

In particular continuous or stepwise changing operation ^refers' to the movement of the carrier train, ie, the continuous shift operation of the Trägerzug is moved continuously, while the stepwise change operation Be¬ the movement of the carrier train is repeatedly interrupted. The The supply of reserve spools begins from the head of the carrier train and is carried out continuously until the last spool has been handed over from the end of the carrier train. The proposed determination of the distance traveled from the last transfer position at the end of the carrier train to a permanently installed sensor, after calling up this stored data, enables the head end of a new carrier train to be positioned precisely at the current exchange point. On the one hand, the tracked carrier train is automatically transferred to the desired next change position with new reserve coils, and on the other hand, this carrier train takes over a kind of pointer function for the operator and shows where the next changeover process has to take place.

As further claimed, the distance traveled to a permanently installed sensor in the "extend command" can also be carried out over a time unit, e.g. Minutes are recorded, this time unit being used to position the new carrier train in accordance with the described travel unit.

To match the timing of the change process for the necessary manual intervention by the operator, it is also proposed to replace the empty spools or tubes from the gate during standstill and to replace the reserve spools while the carrier train is moving.

The proposal to leave the first two hanging pegs at the head end of the carrier train free of reserve coils enables an optimal exchange process, the operator being able to remove two empty tubes at the same time or to subsequently exchange two reserve coils. It is also conceivable to replace two empty tubes at the same time and then two reserve coils in succession. The simultaneous replacement of two reserve coils requires a large one Exertion of force for the operator during manual exchange, which is why these coils are usually plugged into the gate one after the other.

In order to enable the operator to coordinate the timing of the change, the control unit for driving the drive means for moving the carrier train in the region of the longitudinal side of the spinning machine can be controlled.

The proposed possibility of automatically adjusting the speed of the carrier train by the control system by inputting an input value enables individual adaptation. That the operator gives a certain change time, e.g. 15 sec. For a bobbin change. On the basis of this input, the corresponding travel speed of the carrier train is determined and set by a computer assigned to the control unit, which speed is matched to the entered bobbin changing time.

Advantageously, the drive means for the carrier train consists of an element orbiting on an orbit, e.g. a chain conveyor, the drive of which can be controlled via the control unit via a rip cord running on the longitudinal sides of the spinning machine. It is further proposed to provide the pull cord with spaced vertical tension elements. Instead of a ripcord, a touch- or pressure-sensitive safety edge according to the example of DE-OS 39 38 625 could also be used.

Another option for controlling the drive is proposed by using a wireless transmitter. The transmitter with corresponding operating elements could, for example, be carried by the operator or attached to the operator by means of belts or other fastening elements. The control unit of the drive can be activated in pulses. This means that the number of operator interventions on the rip cord or on an operating button of a wireless transmitter can be used to select a corresponding drive speed for the carrier train. A solution by actuating the corresponding elements at different time intervals is also conceivable.

The control command for transferring the carrier train to the sensor, for moving the carrier train out of the transport path of the spinning machine and for the request to the system controller for tracking a new carrier train is advantageously carried out at a central input unit at the head or foot end of the spinning machine.

If it is a closed transport path guided by the spinning machine with at least one spur path which leads to a system, it is advantageous to carry out a "learning run" with the carrier train in order to optimally control the control unit for driving the carrier train to match the specified parameters of the transport path.

An entire bypass, which is sensed by a sensor, records how many revolutions, for example for a drive wheel, are required to drive the carrier train in order to carry out a complete bypass. This means that the control unit of the drive is now able to optimally carry out the travel movement of the carrier train using the existing system. In particular, when the route is also being used to determine and store the positions at which the bypass from the last one Change point of the first long side to the first change point of the second long side takes place. This makes it possible to initialize the control unit for driving the drive means so that the carrier train when the next change position of the the first long side is automatically transferred to the first change position of the second long side. This is particularly advantageous if the change has been made at the last change point on the first long side by the operator and gives the command for transfer to the next change point.

These positions, where the change from one long side to the other takes place, can be made during the bypass, i.e. during the learning trip, by the operator by manual control or automatically by sensors attached to these locations.

The distance traveled by the carrier train is advantageously carried out by sensing the rotary movement of a drive wheel or a drive shaft for the drive means. To detect the total length of the newly adjusted carrier train, it is further proposed that not only the head end but also the foot end of the carrier train is detected by the sensor of the first exchange point. This makes it possible, on the one hand, to position the carrier train in such a way that its end does not protrude from the spur path into the system during the first changing process on the first changing side and thus blocks the transport path of the system. In this case, the carrier train would make a complete bypass, so that during the first changing process, its end protrudes into the connecting piece of the transport path between the first and second longitudinal sides. By detecting the length of the carrier train, the central control unit can use the total distance learned by the bypass to calculate how many block changes are necessary to equip the entire spinning machine.

The storage of the change time for a block change and the average spool run time enables the next due block change to be calculated. Advantageously, the number of remaining block changes and the time period until the next due block change per block section can be queried by the control unit of the spinning machine. Thereby _. it is possible for the operator at the head or foot end of the spinning machine to have a query when the next block change is due. This is particularly advantageous if, as usual, several spinning machines are arranged parallel to each other. The operator can easily and conveniently query at individual central points where and when the next change and on which spinning machine must take place. In conjunction with the pointer function that the positioned carrier train performs, an optimally coordinated temporal changing process results.

For example, two carrier trains can run simultaneously in the transport system to change the spools. However, the control and the initialization of both trains must be coordinated. If a carrier train is used on each long side of the spinning machine, the initialization can also be carried out independently of one another, provided the travel paths do not overlap.

This device can be used both for the transfer of bobbins and of spinning cans into the creel of the spinning machine.

The combination of all data about the block change or about the change cycle of several spinning machines at a central control unit results in an optimal overview for the operator.

Further advantages are shown and described in more detail using the following exemplary embodiments. Show it:

1 is a plan view of a ring spinning machine with a schematically indicated gate for hanging up the roving bobbins and a transport system for feeding and removing the bobbins or the sleeves,

2 is an enlarged partial side view of the coils located in the gate or on the transport path,

3 shows a top view of the spinning machine according to FIG. 1 with sensors;

4 is an enlarged partial view of FIG. 1 in the area of the exchange point,

5 is an enlarged further partial view of FIG. 1 in the area of the exchange point,

6 shows a further top view according to FIG. 1,

7 is a further top view of FIG. 1,

Fig. 8 is an enlarged partial view of the drive unit for the chain conveyor with control and sensors, and

9 is a schematic side view of the long side of the spinning machine according to FIG. 1,

Fig.10 is a schematic side view of the spinning machine with spinning cans located in the creel

11 shows an enlarged front view according to FIG. 10.

1 shows a spinning machine, for example a ring spinning machine 1, which is provided on its right machine side R and on its left machine side L with spinning positions for spinning out a roving. As is generally known, the individual spinning stations are provided with a drafting system and underneath the drafting system with a ring bench on which the rings with a rotor and the spindles for receiving the sleeves are mounted. For reasons of clarity, these details are not shown in the present example. The exemplary embodiment essentially deals with the loading of the gate 2, which is attached above the spinning stations and serves to hold the bobbins or roving bobbins. The gate is provided with a front row of coils Gl and a rear row of coils G2 on each side of the machine. The gate 2 (FIG. 2) essentially consists of supports 3 arranged transversely to the longitudinal side of the machine, with suspension pins 4 and 5 fastened thereon, onto which the coils 6 are detachably attached. The roving 7 drawn off from the bobbins 6 is drawn downwards and transferred to the spinning stations. A transport path T is guided around the spinning machine 1 approximately at the level of the gate 2. The transport path T essentially consists of a carrier T1, which is supported by holders 8 on a cross member 9 on the frame of the spinning machine, not shown in detail. With a corresponding design, the carrier T1 could also be attached to the ceiling of the spinning room. The spinning machine 1 is provided with a head part K and a foot part F. The foot part F is formed from a control unit S and a drive unit A. As can be seen from FIG. 1, there is a carrier train 10 on the orbit of the transport path T, which is equipped with reserve coils 11. The carrier train consists of several individual carriers 12 which are connected to one another via hinge 13 (FIGS. 4, 5). The individual carriers 12 are provided with suspension pins 14 for detachably attaching the reserve coils 11 or empty sleeves 15. In the extension of the hinges 13, a holder 16 is attached, which is provided with rollers 17 arranged in pairs. The rollers 17 are arranged so that they are supported on the carrier profile T1. As a result, the carriers 12 can be moved and suspended on the carrier profile T1.

In FIG. 2, an eyelet 18 fastened to the cross member 9 is additionally shown, which is used to guide a tear line 19. In relation to the longitudinal direction of the spinning machine, vertically hanging traction ropes are attached to the rip cord at certain intervals (FIG. 9). From Fig. 9 and Fig. 1 it can also be seen that the rip cord 19 in the area of The head part K of the spinning machine is fastened to a holder 21 and in the area of the foot part of the spinning machine to a fixed pull switch 22.

A branch path 23 opens into the circulating transport path T, which forms a connection to a transport path 24 of a higher-level system. Switchable switches W1 and W2 are attached to the respective junctions of the branch path 23 with the transport path 24 and the transport path T. To detect the carrier train 10, there is a sensor 25 before the junction from the transport path 24 to the branch path 23 and a sensor 26 after the switch W1. A sensor 30 and 31 is also located in the area of the last exchange point A4 on the right long side R and on the first exchange point A5 on the left long side to detect the carrier train. On the machine longitudinal side L there is also a rip cord 19 with a pull switch 22 and pull cables 20 attached.

The carrier train 10 is driven via a link chain 32 which is guided within the carrier profile T1 (FIG. 2) on the longitudinal sides R, L in each case. The carrier profile T1 is provided with an elongated slot 33, which is open at the bottom, with upwardly projecting pins (not shown) are fastened to the holder 16, which protrude into this slot 33 and thus into the corresponding links of the chain. This means that when the link chain 32 is moved, the carrier train 10 is carried along by means of these pins.

The link chain 32 is driven in the region of the foot end F of the spinning machine 1. Above the drive unit A, a drive M with a drive wheel 35 is attached, the drive shaft of the drive wheel 35 pointing in the vertical direction. To redirect the link chain in the longitudinal direction of the Spinning machine and for introduction into the carrier profile T1 are attached to both sides of the drive M at the level of the transport path T deflection wheels 36. The deflection wheels 36 are only indicated schematically. Such deflection wheels 36 are likewise arranged in the region of the head end K for the closed drive guide of the link chain 32, only one being shown for reasons of clarity. The drive M is controlled by the control unit 38. An enlarged representation of the drive M with corresponding control units can be seen in FIG. 8. It can be seen that the control unit 38 is controlled by a central control S via the path 40. The central control unit S receives signals from the corresponding sensors 26, 27, 30, 31 and from the pull switch 22. Coaxially to the drive wheel 35, a feeler wheel 41 is fastened, which is provided with elevations, for example fine teeth, attached to its circumference . To sense these elevations during the rotary movement, a sensor 42, for example an incremental encoder, is assigned to the feeler wheel, which senses the increases in terms of pulses and outputs these pulses to the central control unit S via a line 43. On the basis of the number of pulses generated during the rotary movement of the drive wheel 35, a direct conclusion can be drawn about the distance traveled by the carrier train. This makes it possible to precisely determine a position of the carrier train from a fixed point on the basis of the pulse numbers specified by the controller S. That is, the system or the central control unit S detects the current position of the carrier train on the transport path T in the present example. In the present example, the sensor 27 is used as a fixed starting point, which is provided for scanning the carrier train 10. That is, as soon as the head end K10 of the carrier train 10 is recognized by the sensor 27, the counter sensor system of the incremental counter 42 is set to zero. The expression head end of the carrier train refers to the direction of travel thereof during the changing process. To match the control unit S to the corresponding parameters of the system (sensors, link chain conveyors, drive units, other control units), the system is initialized or tuned before the first change process.

This is done as follows:

A carrier train 10 is requested by the system via an input unit 45 on the control unit S (FIGS. 8, 9). This requirement via the input unit 45 takes place via a line 47 to a control unit 46 of the system (FIG. 1). After the head end K10 of the carrier train 10 has passed the sensor 25, the switch W1 sets entry into the branch path 23. The sensor 26 reports to the controller S that the carrier train 10 has entered the branch path 23. To take over the carrier train 10 by the drive via the link chain, the motor M is now switched on via the control unit 38. The drive of the carrier train 10 on the conveyor track 24 of the system is usually carried out via friction wheels, not shown. The arrangement of these friction wheels is such that the carrier train is gripped by the link chain, the release of the friction wheels has not yet taken place. The speed of the friction wheels and the link chain have the same speed during this running-in process. Upon further displacement, the friction wheels release the carrier train, ie the drive of the carrier train 10 is now only carried out by the link chain. The link chain 32 driven by the drive M displaces the head K10 of the carrier train 10 up to the sensor 27 and stops here (FIG. 3). Now the function "bypass, initialize" is entered via the input unit 45. With the detection of the head end K10 by the sensor 27, the incremental counter of the incremental sensor 42 is set to zero. The incremental counter is not shown in detail and can be integrated in the control unit S. The drive M is via the control unit 38 when requested by the control unit S via the path 40 in Rotary motion set. The drive speed of the link chain or of the carrier train 10 is higher for this initialization process than the drive speed of the change process for the coils.

The head end K10 of the carrier train 10 reaches the last change point A4 of the right longitudinal side R, as a result of which a sensor 30 arranged in this area emits a signal to the control unit S. The pulses determined via the incremental sensor 42 on the way from the first exchange point AI to the last exchange point A4 are stored in the control unit S and correspond to the distance covered. With the further displacement of the carrier train 10, the head end K10 reaches the sensor 31 after passing the first bypass U1. As soon as the head end K10 is detected by the sensor 31, the path covered by the sensor 27 or the impulses accumulated in the process are Control unit S stored. The carrier train is now moved further until the head end K10 is detected again by the sensor 27. The distance covered by a whole bypass or the impulses added in the process is also stored in the control unit S. In order to be able to carry out a detour, the switch W2 must be changed after the entry into the transport path T. This occurs at the point in time at which the end E10 of the carrier train 10 has been detected via the sensor 27 after entry via the branch path 23. The sensors 25, 26, 27, 30, 31 are preferably designed as light sensors, which respond when the carrier train passes. That is, the carrier train represents the object of reflection. The system now knows the transport path T on the basis of the stored values and can trigger corresponding control mechanisms. The control unit S is equipped with a computer which performs the corresponding storage functions and control processes. The system is aligned in such a way that sections of empty spools or sleeves (FIG. 6) block by block against the tracked reserve spools 11 be replaced. The number of coils or sleeves to be exchanged in the present exemplary embodiment is not representative of the numbers actually present in practice and should only serve as an illustrative example. In the present example, a block to be exchanged, for example B2, comprises two rows of coils of 5 coils, ie a total of ten coil positions. A corresponding number of reserve coils is plugged onto the carrier train 10, two empty pins 50 (FIGS. 1.4) also being present at the head end K10 at the start of the changeover process. The position of the first exchange process corresponds to the position shown in FIG. 1 or FIG. 4. The start of the change process is indicated by the pull switch 22 being acted upon by the pull cord 19 by pulling on one of the pull cables 20, which is located in FIG The area of the first exchange point is triggered. The carrier train 10 now moves slowly at a continuous speed until the operator stops the drive M again by actuating a pull rope 20 via the pull switch 22. It should also be mentioned here that the control unit S was reset to the "change process" function after initialization.

After the start, the changing process is carried out by the operator via the pull rope during the movement of the carrier train 10. The exchange process is explained with reference to FIGS. 4 and 5. FIG. 4 shows that the operator has already removed the two sleeves 15 from the first exchange point AI and has moved them onto the two empty pins 50 of the carrier train 10. When the carrier train 10 is moving, the operator now transfers the two first reserve coils 11 into the hanging pins of the first exchange point AI which have become free. This in turn creates two empty spaces 51 on the carrier train 10, on which the sleeves 27 of the second exchange point AI2 are moved. Should difficulties arise in the meantime during the attachment process, in particular during the attachment a new fuse, the operator can interrupt the changing process at any time by pulling a pull rope 20.

It is also possible to carry out the changeover step by step, i.e. the operator stops the carrier train 10 by pulling on the pull rope 20 in order to regulate the timing of the attachment or change process. It is thus possible to carry out the replacement of the empty spools or sleeves from the gate during the standstill and the replacement of the reserve spools 11 during the movement of the carrier train. If all the reserve spools 11 of the carrier train 10 have been changed into the first block B1, the operator stops the change process by pulling the pull rope 20.

The stopping process could also be carried out automatically by the control of the carrier train. It is necessary for the control unit to be given the train length, which then makes an automatic stop based on the signal "start change process" on the basis of a corresponding route, which can then be overridden by manual overriding to extend and initialize the carrier train.

The "automatic stop" can, for example, avoid operating errors when the next change position is held for the subsequent change process. Such an error could e.g. occur due to an omitted stop signal from the operator.

The position of the carrier vehicle is now in the position according to FIG. 6, the head end K10 already being at the level of the exchange block B4, while the end E10 of the carrier train 10 is in the area of the next exchange point A2 to be carried out. The operator now issues the command "extend carrier train, request a new carrier train" via the input unit 45. Such Input unit 45 could also be attached to the head K of the spinning machine 1 (FIG. 9). The command "Extend carrier train" could also be carried out by correspondingly actuating a rip cord or a pull rope.

The command entered causes the control unit S to cause the drive M to move the carrier train in the opposite direction Y, the end E10 covering the path S1 until it is detected by the sensor 27. This path S1 is buffered in the control unit S and serves as a positioning of the head end KIO of the new carrier train when tracking a new carrier train 10. The path S1 is, as already described above, recorded by the incremental sensor 42 via the summation of the pulses.

Instead of the detection via the incremental sensor 42, the path S1 could also be recorded over time. This means that the time difference for covering the path S1 is determined and stored for the subsequent positioning. The sensor 30 could also be used instead of the sensor 27 for this distance or time recording. The time counter (e.g. in the control unit S ') is started at the moment when the command "extend" is transmitted to the control unit and the carrier end E10 is transferred to the sensor 27.

The system or the control unit S knows, due to the initialization carried out beforehand, that the carrier train 10 is still on the right longitudinal side R of the spinning machine 1 (FIG. 6). Because of this, when the exit command is entered, the switch W2 is set to exit or entry, as is the switch Wl. However, the exit via the branch line 23 to the transport line 24 can only take place if the controller 46 of the system enables the exit. If this is the case, the carrier train equipped with empty bobbins can be conveyed back to the prespinning machine or to a cleaning device. The transfer of the carrier train from the transport path T or from the drive via the link chain to the transport path 24 or its friction wheel drive is carried out in the reverse manner as previously described when entering. This delivery process of the carrier train to the system is monitored by sensors 26 and 25, respectively. The new carrier train 10 is carried out in accordance with the feed of the carrier train described above. That is, the points Wl and W2 are set to the entrance and the head end KIO is detected by the sensor 27. The carrier train 10 continues in the direction of movement X until the end E10 is detected by the sensor 27. After passing the head end KIO at sensor 27, the incremental counter is set to zero and begins to add up the pulses determined during the movement of the carrier train.

As can be seen from FIG. 7, the path S1 previously stored is smaller than the length of the carrier train 10. Therefore, to determine the end E10 of the carrier train, the head end KIO first passes the current change position A2 until it reaches the position shown in broken lines in FIG 7 occupies. The system or the control unit S knows the current position of the head end KIO via the incremental counter, i.e. it knows that the carrier train has to be moved back by too much distance S2 in the direction of conveyance Y to the distance S1 from the sensor 27. This return movement or the reversal of the drive M is triggered automatically by the control unit S. Before this return movement, the switch W2 is also converted to bypass via the control unit S. During the backward movement in the direction Y, the end E10 of the carrier train 10 is transferred into the bypass U2 due to the switch W2 which has been changed over. The positioning of a new carrier train 10 can take place at a higher speed than the movement during the changing process.

The head K10 of the carrier train 10 is now positioned at a distance of S1 from the sensor 27. Through this positioning the Operator shown where the next change operation has to be carried out. The head KIO of the carrier train thus performs a pointer function. The change process for block B2 is again carried out by actuating the pull cord 19 via a pull rope 20 and is carried out in the manner described above.

After replacing the last block section B4 or the last change point A4 on the right machine side, the control unit S automatically counts the path S from the last change point A4 to the first change point A5 on the left machine side for positioning a new carrier train 10. That The temporarily stored value S4 and the additional distance S are used for the positioning of the head KIO to the exchange point A5.

Since the spinning machines are sometimes over 40 m long, the shortest possible distances of the carrier train 10 must be observed in order to save time, in particular when moving out of the spinning machine or for determining the positioning path. If the current exchange point is at B7 or B8, the system can be controlled so that the carrier train for determining the end E10 can also be moved by the sensor 27 in the direction of movement X via the switch W2. Since the control unit S knows the entire bypass, the specific parameter or the distances from which it returns in the opposite or in the exchange direction X can be specified. In these cases the sensor 27 can also position a new carrier train in the direction of movement Y.

Designs are also conceivable, three rows of gates being attached and the outer row of gates being equipped with a reserve coil. The degree of winding or the diameter of the coils can be designed to decrease inwards, so that tracking takes place from the outside inwards. In In this case, the carrier train can be provided with only one empty receiving point.

Furthermore, an embodiment is conceivable, the sensors 30 and 31 being dispensed with. That the control unit does not know the beginning of the bypass U1, so that in this case the operator has to give the command to bypass or cover the distance S via the rip cord. With an appropriate design, it is possible to control the drive speed of the drive unit M by the number of trains on the rip cord 19 or by a specific time load on the rip cord. That In practice, for reasons of time saving, the route S of the bypass Ul can be traveled at a higher speed to the next exchange point A5.

It is also possible to design the control unit S in such a way that the timing for the individual block changes is saved. The start command for the carrier train 10 to start the changeover process is transmitted to the computer of the control unit S, a time counting process being started in the computer of the control unit S. This time counting process is stopped and the time interval which has expired is saved when the command "extend carrier train" is issued, this command likewise being transmitted to the computer. This stored time can be queried and linked to other time intervals for calculations.

The control unit S can also be specified so that it forms an average between the block changes already carried out. The same also applies to the determination of the coil runtime, ie either it is entered manually or is determined when a block change is made on the basis of the last change cycle on this block. To If several block changes are made, the system can calculate a theoretical coil runtime.

The time determination for the determination of the coil running time is carried out in accordance with the determination of the time interval for the block change, the time recording starting with the command "extend carrier train" and ending at the start of the next change process at the same block section.

The operator thus has the option of using the control unit 45, which is provided with a screen 48, to query various data from the control unit S, which has calculated it. This data can e.g. refer to the query of the time interval until the next block change or to the query how many block changes have already been carried out on this machine.

This gives the operator an optimal overview of the spinning machines that he has to look after. As can be seen from FIG. 8, this data can be transmitted from a plurality of spinning machines 1 or their control units S to a central control unit 60. Via an input or output unit with a screen, it is possible there to query the data on all connected spinning machines.

The change system designed in this way, or the system designed in this way, supports the operator in an advantageous manner and saves her unnecessary journeys. In addition, an optimal division of labor is made possible, which can be queried over short distances.

However, the system is also suitable for use for a fully automatic change, the track carrier being always positioned exactly at the subsequent change point. This also simplifies these systems Positioning possible, which can be done without special additional elements, such as individual flags.

10 shows a further possible application of the invention, wherein instead of roving bobbins, spinning cans 70 are transferred in the gate 2. The transfer is similar to that of the spools, but the spinning cans 70 are not attached to pins 14 on holders 16, but are held by a bracket 73 which engages under the upper edge 74 of the cans 70 with an appropriately shaped holder 75 . The can rim 74 can (not shown) be provided with corresponding receiving elements as a counterpart to the holder 75, so that the cans 70 are locked with the holder 75. The bracket 73 is provided in the upper region with rollers 76 which have a central groove 77. A guide rib 80 is arranged on the carrier train 10, which is composed of individual elements 78 which are articulated to one another via hinges 79. Recesses 81 are provided in the guide rib 80 for receiving the rollers 76. The bracket 73 is thus fixedly mounted on the carrier train 10 during transport. For transfer in the gate 2 or on the cross member 3, the bracket is lifted by hand or with an automatic machine, rotated by 90 ° and placed on the guide rib 82 and displaced in the direction of the center of the machine. For example, two spinning cans can be pushed into the gate. The spinning cans (working cans) 71 are locked in the gate 2 with a schematically indicated locking element 83, which can also be unlocked from outside the gate. When the can is changed, the sliver 84, which extends beyond the can rim 74, is released by a locking element 85 and transferred to the drafting device 72 (by hand or automatically). The sliver 84 warped in the drafting device 72 is wound onto a spindle 86 (Kops). The removal of the working cans 71 from the gate takes place in the opposite sense. The cans are changed in accordance with the spool change described above. The porter train is as before described, stored on rollers TK movable on rollers 17.

As before, the rollers can be taken to the process by a correspondingly assigned chain drive with driver (not shown).

Claims

1. gate loading of a spinning machine with a mobile device (10), characterized in that means are provided to position the device (10) relative to the gate (2) for block-wise loading.

2. Method for loading a spinning machine with textile material, in particular a gate (2) with containers (11) by means of a mobile device (10), characterized in that the positioning of the mobile device (10) is opposite the gate (2) by initialization on the gate and / or by stored routes (Sl).

3. Method for changing roving bobbins on a spinning machine (1), in particular a ring spinning machine, which is provided on its longitudinal sides (R, L) with at least one inner and outer row (G1, G2) for attaching roving bobbins (11) and parallel to these rows each has a transport path (T) on which a carrier train (12) equipped with roving bobbins (11) can be moved via a drive means (32), characterized in that and the outer row (G1, G2) of the coils or sleeves (6) on the long sides (R, L) are exchanged block by block, continuously or stepwise, against the reserve coils (11) provided on the carrier train (10) and the carrier train is continuously or stepwise according to the exchange process to the subsequent exchange point until all reserve spools (11) are replaced, then the travel movement (X) of the carrier train (10) manually or it stops automatically and the position of the last transfer point on the gate is saved in relation to a fixed point in the transport system.

4. The method according to claim 3, characterized in that for storing the position of the last transfer point, the carrier train is transferred from its stopped position to a sensor (27) which detects the end (E10) of the carrier train (10), the last of which The change process took place, the path (S1) of the end (ElO) of the carrier train (10) covered thereby being recorded and stored from the stopped position to the sensor (27), and this stored value (S1) for the positioning of the head ¬ end (KIO) of a new carrier train (10) provided with tracking coils (11) and tracked by this sensor (27) to the current exchange point.

5. The method according to claim 3 or 4, characterized in that the replacement of the empty coils or sleeves (6) from the inner and outer row (G1, G2) during standstill and the replacement of the reserve coils (11) during the movement the carrier train (10).

6. Device according to one of claims 3 to 5, characterized ge indicates that the tracked carrier train (10) has at least two empty pins (50) located at the head end (ElO).

7. The method according to any one of claims 3 to 5, characterized ge indicates that the control unit (38) for the drive means (M) controls the drive during the changing process based on a predetermined value.

8. The method according to any one of claims 3 to 7, characterized ge indicates that the drive (M) for the drive means (32) for moving the carrier train (10) by the operator at least in the region of the long sides (R, L) the spinning machine (1) can be controlled.

9. The device for the method according to claim 8, characterized ge indicates that the drive means (32) from an orbiting element, e.g. a chain conveyor, which is driven by a stationary drive (M) and the control unit (38) of the drive (M) via a tether (19) running at least on the long sides (R, L) of the spinning machine (1) ) can be controlled.

10. The device according to claim 9, characterized in that the tearing line (19) on the longitudinal side (R, L) of the spinning machine (1) runs approximately at the height and parallel to the transport path (T) and is arranged at a distance (a) vertical tension elements (20) is provided.

11. The method according to claim 8, characterized in that the control of the control unit (38) of the drive (M) is carried out by the operator via a wireless transmitter.

12. The method according to any one of claims 7 to 11, characterized ge indicates that the adjustment of the size of the Umlauf¬ speed of the drive means (32) by pulse control of the control unit (38) of the drive (M) er¬.

13. The method according to claim 4, characterized in that the control commands for transferring the carrier train (10) to the sensor (27), for extending the carrier train (10) from the transport path (T) of the spinning machine (1) and for the requirements to the system controller for tracking a new carrier train (10) equipped with reserve coils (11) at the head end (K) or at the foot end (F) of the spinning machine (1) by the operator to the controller (S) of the spinning machine.

14. The method according to claim 4, wherein the transport path (T) is designed as a closed transport path (T) guided around the spinning machine (1) with at least one branch path (23) to a system (24), characterized in that the Distance of a whole bypass of the transport track (T) by departing with the carrier train (10) and the distance to the end of the last exchange point (A4) on the first long side (R) and the first change point (A5) on the second long side (L) from the Position of the first changeover point (AI) on the first long side (R) is scanned and stored.

15. The method according to claim 14, characterized in that the signal for the start of the scanning process from a sensor (27) in the area of the first exchange point (AI) on the first long side (R) and the signal for determining the path to the last exchange point (A4) of the first long side (R) and up to the first exchange point (A5) of the second long side (L) by manual control of the drive (M) for the carrier train (10).

16. The method according to claim 14, characterized in that the scanning of the distance by at the first and last change point (AI, A4) of the first long side (R) and by at the first change point (A5) of the second long side ( L) attached sensors (27, 30, 31) which each scan the head end (K10) of the moving carrier train (10).

17. The method according to any one of claims 1 to 16, characterized ge indicates that the distance traveled by the carrier train (10) by scanning the rotary movement of a drive wheel (35, 41) or a drive shaft for the drive means (32).

18. The method according to any one of claims 14 to 16, characterized in that for the positioning of a newly tracked carrier train (10) to the next exchange point, the foot end (ElO) of the carrier train from the sensor (27) of the first exchange point (AI) the first long side (R) is detected.

19. Block-by-block gate loading of a spinning machine with a mobile device, characterized in that the change time for a block change and the average spool travel time are recorded and stored in the control.

20. The method according to claim 19, characterized in that the disposition of the due block change and the time period for the due block change per block section can be queried by the control unit (S) of the spinning machine (1).

21. The apparatus according to claim 20, characterized in that at the head or foot end (K, F) of the spinning machine (1) an input unit (45) is attached to query the data for the Block¬ change.

22. The method according to claim 20, characterized in that the data on the block changes and on the times until the next block change from several spinning machines (1) to a central control unit (60) are summarized and can be queried there.

23. The method according to claim 4, characterized in that the distance covered (Sl) is detected by means of a time unit and this time unit is used to position the new carrier train.

24. The method according to claim 2, characterized in that at least two mobile devices are used for loading the gate, the positioning of which is carried out by an initialization which is dependent on one another.

25. The method according to claim 2, characterized in that a mobile device is provided on each longitudinal side of the spinning machine for loading the gate and their positioning by an independent one

"Initialization is done.