EP0905294B1 - Loading control in a preparatory spinning machine - Google Patents

Description

The invention relates to a method and a Device for monitoring the loading of hanging wagon trains on a roving machine, the supply of tubes and Removal of coils by moving the trolley trains along a predetermined path takes place and in the event of a deviation at least one error signal is generated.

The starting point of the present invention is a Roughing machine with an automatic device Replace full roving bobbins with empty roving tubes, at the one containing the roving bobbins and roving sleeves Suspension trolley trains on guideways running through the wings be moved into the change position (DE 44 21 778 C2). she is equipped with an assembly monitoring device, those for monitoring the presence or absence and / or for Monitoring the nature of each one in the Hanging holder of a full bobbin suspended suspended bobbin train or empty sleeve before and / or after the change process serves. The type of assembly can also be checked, So whether it is a roving sleeve or a roving spool is. If an inadmissible deviation from the an error signal is generated.

The object of the present invention was a Specify method or an apparatus by means of which the Consideration of the generated error signal or the rectification of a detected mounting error can be ensured i.e. concrete procedures to correct an identified error be initiated.

This object is achieved in that in Wing area an incorrect assembly is fixed or possibly Several incorrect assemblies are fixed that after fixing Misfitting a hanging trolley train at least as far from the Wing area is extended until each former misplaced position is moved back behind a test center and then retracted into the wing area, where check again to determine if the error has been corrected Incorrect assembly occurs.

The hanging trolley trains can from the gate of one Ring spinning machine or a waiting area (in the rear part) the roving machine in the wing area (in the front part) drive, the loading of the hanging car trains automatically is checked. If this is a missing sleeve, one is wrong equipped sleeve or a full spool detected in the hanging trolley, an error signal is generated and the operator perceivable displayed. To observe this error signal ensure it can be provided that the error signal further operations such as changing the Roving bobbins blocked against roving sleeves.

In the wing area, a misplaced position in the The easiest way to correct the suspension trolley is because the Hangers are easily accessible there. For example refilled a missing sleeve, one in the wrong position equipped sleeve or a roving spool with winding removed, the troubleshooting can be done, for example, at the operator terminal be acknowledged. As a result, the suspension wagon train is ready to be pulled out again released from the wing area what by hand or can be done automatically.

The hanging wagon train must be pulled back until the position recognized as incorrectly equipped by the mounting monitoring device has reached. This is the safest way can be achieved in that the suspension trolley pull completely out of the Wing area is moved out. But it is also possible that the assembly monitoring device the incorrectly assembled Position saves and the trolley pull only up to this Position behind the assembly monitoring device lets extend - this shortens that for the change process required time.

When moving out of or the subsequent retraction the assembly monitoring device is in the wing area reactivated and the equipment of the hanging wagon train checked again. This process can repeat itself so often until no more assembly errors are recognized or until the Assembly monitoring is switched off.

The troubleshooting has been acknowledged and still no troubleshooting this defect will be carried out the next time Run - as described above - again as faulty recognized.

The placement monitoring device has three sensors, which in the following as position sensor, as sleeve sensor and as Coil sensor are called. Using the position sensor can the sleeve sensor and possibly the coil sensor in the positions to be monitored are activated. He can mechanical, optical or magneto-inductive type. Sleeve sensor and coil sensor, by means of which the assembly of the Positions can be recognized are preferably more optical Kind, the sleeve sensor advantageous as a light barrier, the Coil sensor designed as a light sensor.

The assembly monitoring device also has a Control unit, which in addition to the sensors and the one Error signal identifying device and with the Drives of the suspension trolley trains and the roving machine, in particular their changing devices are connected. The assembly monitoring device advantageously has also a storage unit on the misplaced positions of the Hanging trolley trains can save.

The position sensor can be switched by means of flags Positions of the hanging brackets assigned and on the hanging car trains are arranged, are activated to the assembly monitoring device the one for the functional Evaluation of the signals of at least the sleeve sensor to be able to provide the required information.

Fig. 1 eine schematische Draufsicht auf eine Vorspinnmaschine mit im Wartebereich bereitstehenden Hängewagenzügen;

Fig. 2 eine schematische Draufsicht auf eine Vorspinnmaschine nach Fig. 1, wobei der eine Hängewagenzug bereits vollständig in den Flügelbereich eingefahren und der andere Hängewagenzug im Flügelbereich zur Fehlerbehebung positioniert ist;

Fig. 3 eine Seitenansicht auf einen Hängewagenzug im Bereich der Bestückungsüberwachung;

Fig. 4a eine Draufsicht auf Schaltfahnen am Hängewagenzug;

Fig. 4b die Beaufschlagung des Positionssensors und des Hülsensensors in einem Zeit/Spannungsdiagramm.

The invention is described below with reference to an embodiment shown in the drawing. The drawing shows:

Figure 1 is a schematic plan view of a roving machine with hanging trolley trains available in the waiting area.

FIG. 2 shows a schematic plan view of a pre-spinning machine according to FIG. 1, one of the suspension trolley trains having already been completely moved into the wing area and the other suspension carriage train being positioned in the wing area for troubleshooting;

3 shows a side view of a hanging wagon train in the area of the assembly monitoring;

4a is a top view of switching flags on the hanging wagon train;

Fig. 4b the exposure of the position sensor and the sleeve sensor in a time / voltage diagram.

1 and 2 show schematic top views of a Roughing machine 1. It has a waiting area 2 and a Wing area 3 on. In the situation shown in Fig. 1 there are two hanging trolley trains 4 and 5 with hanging brackets 25 in waiting area 2 on parallel tracks. These two Hanging carriage trains 4 and 5 can be shown schematically Drives 7 and 7 'on tracks 30 and 30' in the respective Lanes assigned to rows of wings in wing area 3 are moved become. In this wing area 3 there are more Drives 7 and 7 'for moving the hanging car trains 4 and 5.

Located between the waiting area 2 and the wing area 3 there is an assembly monitoring device on each track 30 or 30 ' 8 with a position sensor 11, a sleeve sensor 12 and a coil sensor 13. The position sensor 11 is over a line 18, the sleeve sensor 12 via a line 17 and the coil sensor 13 via a line 19 with a Control unit 10 connected. This control unit 10 is over a line 16 with a control terminal 15 in connection.

While in the situation shown in Fig. 1 two hanging trolley trains 4 and 5 are in the waiting area 2, Fig. 2 shows a situation in which the hanging wagon train 4 has already completely moved into the wing area 3, while the trolley 5 is partly in the wing area 3 located and positioned accordingly for troubleshooting.

If this trolley 5 from the waiting area 2 in the Wing area 3 moves, is when driving past the Assembly monitoring device 8 the assembly of the Hanging wagon train checked. If a misplaced one is found Position is a by the assembly monitoring device An error message is generated which, for example, on the operator terminal 15 can be displayed. A misplaced position can for example a missing sleeve, one in the wrong position attached sleeve or a full coil not removed.

In the wing area 3, the incorrectly equipped ones are corrected Position. Then the trailer 5 is removed from the Wing area 3 out and on the assembly monitoring device 8 retracted past again. If not misplaced position is recognized, the further Workflow of the roving machine 1, i.e. the changing process Approved.

The procedure described above is repeated until no one Assembly errors are recognized more or until the respective Assembly monitoring device 8 on the operator terminal 15 is turned off. Only then can the troubleshooting be corrected be acknowledged when the hanging trolley 4 or 5 in Wing area 3 has come to a standstill. Became this Troubleshooting acknowledges and is still not a troubleshooting has been carried out, this misplaced position will be at next run in the area of the assembly monitoring device 8 recognized.

As can be seen from Fig. 3, the position sensor 11 is by Switching flags 20.1, 20.3, etc., which correspond to the positions, i.e. the Hanging brackets 24.1, 24.2, etc. ... of the hanging wagon train are assigned. 4a shows a top view these switch flags of the hanging wagon train. The dashed indicated switch flags are when driving the hang wagon train effective in the opposite direction. The circuit is made that when the position sensor 11 is acted upon by the front edge of the switching flag 20.1 according to line 26 in Fig. 4b the sleeve sensor 12 is not through a sleeve 25, 25.2, etc. damped, i.e. not when designed as a light barrier may be interrupted - otherwise an error signal generated. When the position sensor 11 is acted upon by the next switching flag 20.3 it is checked whether the sleeve sensor 12 between the two pressures according to line 27 of FIG. 4b was dampened once - otherwise an error signal generated. If so, it is determined that the area a sleeve is attached to the two switch tabs 20.1 and 20.3 and not on the sleeve holder 24.1, but on the other Sleeve holder 24.2 in this area.

It is understood that the sampling and evaluation of the Signals from the position sensor 11 and the sleeve sensor 12 also can be done in another way.

The coil sensor 13 is used to determine incorrectly Roving bobbins remaining in the hanging wagon train, i.e. Vorgarmhülsen with winding. There - as long as hanging trolley trains with roving sleeves are equipped - at no position roving sleeves with winding may be plugged on, the coil sensor 13 is advantageous designed as a light scanner and its scanning range like this set to end in the winding of a coil. The Accordingly, the coil sensor does not need depending on the Position of the hanging trolley trains activated and deactivated become. It only recognizes sleeves with winding or winding remnants and triggers if this happens while driving the with roving sleeves equipped trolley, there is always an error signal.

From Fig. 3 it can also be seen that the control unit 10 both with the sensors 11, 12 and 13 as well as via the line 16 the operator terminal 15 is connected, the control unit 10 the operator terminal 15 both acted upon and by him is applied. The control unit 10 can also via further lines 16 ', 16 "with drives of Leading machine and be functional drive. This functional loading includes in essentially locking the drives as long as one Error message is pending and after acknowledgment of the rectification in the event of incorrect assembly, the release of the hanging trolley drives only 7, 7 '.

According to the invention, there is a high level of functional reliability, in particular by acknowledging the error correction and only after the error correction this error message is deleted and that operations that result in damage when incorrectly fitted lead, can be blocked. The arrangement is preferred in such a way that the acknowledgment of a troubleshooting only can then take place when the suspension trolley concerned 4 or 5 is in the wing area 3 and stands there.

The present invention leads to a very effective one Assembly monitoring on a pre-spinning machine, in which with little effort the supply of empty sleeves 25 from the Waiting area is guaranteed in the wing area 3, wherein a possible error of the assembly point concerned can be properly assigned and corrected. This one Correction of the fault in wing area 3 takes place good operator access to this point, so that overall a significant improvement in productivity and the degree of automation while maintaining a Ease of use is achieved.

Claims (11)

1. Method for monitoring the equipment of suspension trolley trains (4; 5) on a roving machine (1), the supply of tubes (25) and the discharge of bobbins taking place by means of the movement of the suspension trolley trains along predetermined tracks, and, when a suspension trolley train travels into the flyer region (3) of the roving machine (1), the functionally correct equipment of the suspension trolley train being checked at at least one checkpoint (12, 13) during the run into the flyer region, and at least one fault signal being generated in the event of a deviation of the actual equipment from the intended equipment, characterized in that

   any misequipment is eliminated in the flyer region (3),

   after the elimination of misequipment, the suspension trolley train (4; 5) is moved out of the flyer region (3) at least so far that any previously misequipped station is moved back behind a checkpoint, and

   the suspension trolley train is moved into the flyer region (3) again,

   a check for misequipment being conducted once more when the suspension trolley train moves out of the flyer region or moves into the flyer region again.
2. Method according to Claim 1, characterized in that fault elimination is acknowledged, the respective fault warning is cancelled as a result of the acknowledgement of fault elimination and the suspension trolley train is cleared for moving out of the flyer region.
3. Method according to Claim 1, characterized in that the movement of the suspension trolley train out of the flyer region and its renewed movement into the flyer region take place automatically, at the same time as a check for misequipment is conducted.
4. Method according to Claim 1, characterized in that the movement of a suspension trolley train out of the flyer region after the elimination of misequipment and its renewed movement into the flyer region are repeated, at the same time as a check for misequipment is conducted, if appropriate until the equipment is detected as being fault-free.
5. Method according to Claim 1, characterized in that a bobbin-changing operation on the roving machine is cleared only when the equipment is detected as being fault-free.
6. Apparatus for monitoring the equipment of suspension trolley trains (4; 5) on a roving machine (1) with tubes (25) and bobbins, the supply of tubes and the discharge of bobbins taking place by means of the movement of the said suspension trolley trains along a predetermined track, and an equipment monitoring device (8) arranged at the entrance of the flyer region (3) and connected to a control unit (10) generating at least one fault signal in the event of a deviation of the actual equipment from the intended equipment, characterized in that, in the presence of a fault signal, the control unit (10) blocks the bobbin-changing operation and, after acknowledgement of the elimination of all the signalled misequipments, clears a suspension trolley train (4, 5) for movement back behind the equipment monitoring device (8).
7. Apparatus according to Claim 6, characterized in that the control unit (10) is set up for the storage of a misequipped position on a suspension trolley train (4; 5) and allows a suspension trolley train with misequipment to move out of the flyer region (3) only so far that the misequipped position runs once more past an equipment monitoring device (8).
8. Apparatus according to Claim 6, characterized in that the equipment monitoring device (8) has at least one position sensor (11), which can be activated by elements distributed over the suspension trolley train (4; 5), and also a tube sensor (12) and a bobbin sensor (13).
9. Apparatus according to Claim 8, characterized in that the elements distributed over the suspension trolley train (4, 5) are designed as switching tabs (20).
10. Apparatus according to Claim 9, characterized in that the bobbin sensor (13) is designed as a light scanner, the scanning range of which is set to the winding space for a roving bobbin.
11. Apparatus according to Claim 6, characterized in that an equipment monitoring device (8) for each track of a suspension trolley train (4; 5) is arranged at both ends of the flyer region of the roving machine (1).

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