EP0443418B2 - Textile machine - Google Patents

Description

The invention relates to a textile machine according to the preamble of claim 1.

In a spinning mill, different processes are used depending on the process textile processing machines used. These have different characteristics as a common feature Machine types a feed and delivery unit for the textile material to be processed.

With these machines, the feed and delivery unit, in terms of control and drive seen in the drive and control unit of the textile processing Machine fully integrated.

Today's drive technology, especially the single drive about electric motors, allows a very finely tuned and controllable drive, whereby too the communication of individuals. Drive groups without problems and can be carried out with almost no losses.

DE-OS 22 30 069 is a textile processing Machine known, which is the textile material in this Fall a sliver, to one with its own drive dispenses the provided can filling station. In doing so Differences in the delivery speed of the sliver between the textile processing machine and the subsequent can filling station via a sensor device detected and the drive of the can filling station regulated according to the determined values. The control of the can filling station as well as the textile processing The machine is operated by a central computer performed.

However, this system is not easy on the supply of textile material by means of a feed device transferable to the textile processing machine. With regard to an automated spinning mill are at the feeder has to meet further requirements, which is the prior art described above the delivery unit not included. For example, required, that a feed unit is also independent of the subsequent textile processing machine started can be. This is particularly necessary when a new batch of textile material is scheduled and correspondingly for handing over / handing over to the textile processing company Machine must be positioned. This Case occurs in particular when part of the abandoned Textile material as reserve material in one Waiting is held.

From the still known DE-AS 22 30 644 is a feed table to a textile processing machine can be seen, the control, or connection of take-off devices for slivers via electromagnetic Couplings is made. there are two pairs of pressure rollers with control and Provide controls, which if the Working tape the corresponding in a waiting position Switch on the available reserve tape. The drive the conveyor rollers and the conveyor belt for feeding of slivers is controlled by the drive and mechanically connected.

The invention is based on the object the individual drive and control concepts both a feeder and a tape storage to train a textile processing machine that an interaction with transport systems for Sliver material from the point of view of automation becomes possible. Automation can do it on the one hand the automatic tracking of text. tilmaterial, without stopping the textile processing machine and on the other hand the connection to an automatic Transport system for the textile material can be understood.

This task is done with a generic Textile machine by the characteristic features of claim 1 solved.

The solution according to the invention provides the advantage that the feed speed is in sync with the processing speed can be controlled.

Another advantage comes from the possibility that a failure of a thread band in the feeder reported to the master computer of the transport system can be. It is thus achieved that a

DE-OS 32 37 864 which forms the preamble of claim 1 describes a Method for controlling and / or regulating a spinning preparation plant, that consist of several assemblies exists, with each assembly more than has a machine in which the type and amount of Processing of the fiber material measured and controlled or be regulated.

Here is a central control or regulation and control of all measurement, command and control signals in the processing of the fiber material by the Microcomputer (microprocessor system) provided.

DE-OS 35 32 172 discloses linking a car control with the controls of the Kärde and the route via the central control device (central computer). 2, the trolley 9 has a trolley control 10 which is connected to the drive motor 11 for the traction drive and to the motor 12 for the steering drive. The car controller 10 is connected via infrared light and the central computer 13 (microcomputer with microprocessor). The central computer 13 is also connected to the card controller 14 (to which the drive devices 15 for the card 1 and the can changer are connected) and to the line controller 16 (to which the drive devices 17 for the line 6 are connected). A reserve station controller 18 (buffer controller) for the can reserve station 27 is also connected to the central computer 13 .

Furthermore, the central computer 13 is connected to the carding machine 14 via the blow room system controller 19 . Connection of an outgoing sliver to the start of a switched-on reserve sliver is possible through exact sliver end positioning.

Since this feeder consists of several, rotating Conveyor belts exist, it can with the invention Connection can be beneficial if each Conveyor belt of a feeder own drive motor has that of the control unit of the feeder to be led. This enables targeted and separate reserve band connection. In this sense are the conveyor belts for the work belt and reserve belt preferably summarized in pairs. The Conveyor belts each have a take-off device to pull the sliver from a jug.

To short-wave signals between feeder and filtering the textile processing machine an attenuator in the connection path between the corresponding control and regulating devices switched.

Are the textile processing machine, e.g. one Route, sliver submitted, so the funding results of the individual slivers on several revolving conveyor belts supported above the ground one way of feeding the individual slivers to control exactly. This is advantageous a separate drive motor is assigned to each conveyor belt.

The use of electric stepper motors results here during the entire transport process of the sliver an exact determination of the position, e.g. a beginning of a sliver, seen in the direction of transport. The still proposed Use of electronically commutated brushless motors, e.g. DC motors the advantage that the drive of the conveyor belt too work in the overload area at short notice and without any problems can.

To ensure a smooth interaction between the textile processors Machine in terms of delivery speed to ensure the textile material supplied, is suggested a connection path between the control and regulation unit of the textile processing Machine and the control electronics of the Drive motors for the transmission of command signals to provide.

So that it is between the feeder and the Belt storage no misalignment of the textile material there is a synchronism between these two facilities required.

But to build up the whole system to avoid short-wave disturbances, is suggested in the connection path to provide an attenuator for filtering out these signals.

The teaching claimed by the invention gives a good control possibility of the entire system through direct control. Also be the drive paths thanks to the independent drive shortened and thus the losses smaller. Moreover can the drives due to the modular system especially for the individual purpose be interpreted. The proposed control and control and drive separation enables better allocation and communication to an assigned automatic transport system for the textile material.

Further advantages are based on the following exemplary embodiments and their description.

Figur 1

eine schematische Draufsicht auf eine textilverarbeitende Maschine mit einer Zu- und Abführeinheit mit einem Transportsystem

Figur 2

ein schematisches Blockschaltbild für den Antrieb und die Steuerung der Zuführeinheit nach Figur 1

Figur 3

eine schematische Draufsicht auf eine Ausführungsform der Zuführeinheit mit einzelnen Transportbändern

Show it:

Figure 1

is a schematic plan view of a textile processing machine with a feed and discharge unit with a transport system

Figure 2

2 shows a schematic block diagram for the drive and the control of the feed unit according to FIG. 1

Figure 3

is a schematic plan view of an embodiment of the feed unit with individual conveyor belts

Figure 1 shows a textile processing machine, e.g. B. a route 1, which with a not shown Drafting device is provided. As a feed unit a feed table 2 and as a delivery unit a tape storage 3 provided. Along the feed table 2 are cans A, R set up for the removal of slivers. A becomes the working can and R the reserve can designated. The space which the pitchers A, R, is also commonly used as a can rack 4 designated. In this can rack 4 can also Empty spaces for the reception of cans by the Transport unit may be provided. This allows the Logistics of the transport system and thus its effectiveness be improved.

There can also be more cans A, R and empty spaces L than used in the example shown.

The directional arrow P shows the feed and the direction of passage of the textile material before it reaches the tape storage 3. A transport system T ₁ with a driverless transport vehicle 5 guided over a guideline 6 is assigned to the feed table 2 or the can frame 4.

As can be seen from the illustration, there are currently two cans R on the transport vehicle 5. The transport vehicle 5 is controlled by a host computer 7 controlled. That means the transport vehicle receives the Driving command or the driving order from the host computer 7 via a connection 8. The connection 8 can be wireless, via a connection cable or via a communication station respectively. The drive 9 of the feed table 2 and the sensor system 10 is shown schematically.

The drive 9 is connected to a control unit 13 via a path 11 and the sensor system 10 via a path 12. The control unit 13 communicates via the line 14 with the control computer 7 of the transport system T ₁ .

The paths 15 and 16 form a communication option between the control unit 17 of the drive unit 18 of the route 1. The schematically illustrated sensor system 19 of the route 1 is connected to the control unit 17 via the path 21. The two connections 22 and 23 enable communication between the control unit 17 and the control unit 24 of the tape storage unit 3. The control unit 24 is connected via the paths 25 to a schematically illustrated drive 26 and via the path 27 to a sensor system 28 of the tape storage unit 3. There is also a connection 29 between the control unit 24 of the tape storage 3 and a control computer 30 of a further transport system T ₂ . The control computer 30 communicates via a connection 32 with a transport vehicle 31, which is guided via a guide 33.

In the example shown, a can F _{2 is} in the filling station, while an empty can F _{1 is} ready for tracking. F3 denotes a filled can, which was ejected from the tape storage 3 after the filling process and is ready for reception by the transport vehicle 31.

The guideline 33 is provided with a reversing loop 34.

Figure 2 shows a more detailed breakdown of the Drive and control mechanism for the feed table 2. Starting from the control unit 13 there is the path 11 connects to a motor electronics 35, which acts on a motor 36. The overview because only one motor 36 is shown in FIG. 2, it can but also several motors 36, each with one Motor electronics 35 are used. Between the motor electronics 35 and the control unit 17 for the Path is a connection 37, in which an attenuator 38 is switched on. About this connection 37 gets the engine electronics 35 respectively the motor 36 a command signal to relate to synchronism the feed rate of the textile material and to ensure processing speed. For starting up or starting the engine 36 and thus the feed device 2 becomes the motor electronics controlled via path 11 by control unit 13. The lines 40 and 41 provide a connection between the control unit 13 and a display and operating unit 39. A power supply unit 42 supplies the display via line 44 and control unit, via line 43 Control unit 13, the sensor system 10 via line 47 and the motor electronics 35 via line 46 Electricity. To prevent incorrect switching, is about line 45 from control unit 17 of route 1 the power supply 42 is switched on. This means in the specific case, the voltage supply 42 becomes only effective when the control unit 17 resp. the route 1 is switched on. Through connection 48 between it is the sensor system 10 and the motor electronics 35 possible, directly in the motor electronics for motor control intervene. This can in certain cases the reaction time to change the engine speed be shortened because the computer unit of the control unit 13 is bypassed.

An exemplary embodiment is shown in FIG. 3, the feed table 2 being composed of a total of eight individual conveyor belts B ₁ to B ₈ . Each conveyor belt B ₁ to B ₈ is equipped with a separate drive motor 36 ₁ to 36 ₈ . The drive motors 36 ₁ to 36 ₈ are each located above a draw-off point above a can, only one can A being shown because of the better overview. The other seven cans are assigned accordingly. In circumferential volumes B ₁ to B ₈ , swiveling pressure rollers 49 are assigned to each of the withdrawal points. During operation, these rollers 49 are pressed in the direction of the respective conveyor belt B ₁ to B ₈ and thereby enable the respective sliver to be pulled off by the clamping between the conveyor belt and the pressure roller 49. As can be seen from the top view, only every second sliver is shown in the example shown four, sliver 50 delivered at the transfer point 52 to route 1. The slivers 50 released in the process are combined at this transfer point 52 (not shown) to form a sliver fleece before it is fed to the drafting system of the line 1. The other slivers, also called reserve belts 51 in this operating state, are in the starting position below a sensor row S and are switched on in accordance with the failure of a sliver 50, i.e. one of the conveyor belts B ₁ to B ₈ must be started up and switched on via the respective motor 36 . The monitoring of the slivers or the sliver break can also take place directly in the area of the withdrawal points.

The transport vehicle 5 with the guideline 6 is only indicated schematically here. In this exemplary embodiment, the line 1 and the tape storage 3 are connected to form a unit, which are controlled by a control unit 17. The sensors 19 of the route 1 and the sensors 28 of the tape storage 3 are connected to the control unit 17 via the paths 21 and 27, respectively. The special indication of the respective drive unit has been omitted. A control signal is transmitted from route 1 via control unit 17 and control unit 13 to the individual electronic control units 35 ₁ to 35 ₈ of motors 36 ₁ to 36 ₈ . An attenuator 38 is installed in the path 16 provided for this purpose to damp short-wave signals.

There is a can sensor 53 in each can position assigned to the via a line 54 and the sensors 10 and the path 12 connected to the control unit 13 is. For reasons of clarity, in the example only one sensor 53 is shown in FIG. The sensors 53 can also be used on the one hand to check whether a Kanne is present, or on the other hand for verification serve the contents of the can. This from the sensors 53 signals received are for deployment of cans and for the preparation of the tracking of a reserve band relevant.

When line 1 according to FIG. 3 starts up, the slivers removed manually or automatically from the cans are placed in the take-off point between the respective conveyor belt B and the respective pressure roller 49. The individual motors 36 ₁ to 36 ₈ are then started via the operating unit 39 and via the control unit 13 and the belts 50, 51 are thus brought into a predetermined position. The stopping of the conveyor belts to reach a certain position of the respective sliver start can be effected or controlled, for example, by the sensor row S. In this case, for example, the band starts of the reserve bands 51 can come to lie at the level of the sensor row S, while the band starts of the fiber bands 50 are transferred to the transfer point 52, where they are combined to form a fiber band fleece.

After this go-around or hanging up the eight slivers can be further inserted the slivers 50 in the subsequent drafting system or subsequently sliver emerging from the drafting system into the sliver holder manually or automatically respectively.

During operation, the engine speed of the motors 36 ₁ to 36 _{8 is} adjusted according to the control dynamics of the drafting system of the route 1 via the path 16.

If a sliver fails due to a sliver break or an empty jug after notification of the sensor system 10, the corresponding Conveyor belt B connected with reserve belt 51, and in such a way that the End of the sliver running out at the beginning of the activated reserve tape 51 covered. This requires an exact sensor system and an exact start-up the corresponding conveyor belt.

The report of a failed sliver or an empty can is transmitted by the control unit 13 via the line 14 to the control computer 7 of the transport system T ₁ . With this transmission, the position of the stand of the empty can is also transmitted, whereby the host computer can transmit a clear driving order to the transport vehicle 5 for picking up and replacing the corresponding can with a new filled can. A further transport system T ₂ was not shown in FIG. 3. However, the structure could be similar to that shown in the example in FIG. 1. The example according to FIG. 1 differs essentially from that in FIG. 3 in that the section 1 and the tape storage 3 each have their own control and drive unit, which communicate with one another via the respective control unit 17 or 24. Otherwise, the example according to FIG. 1 differs insignificantly from the example according to FIG. 3. In FIG. 3, only the feed table 2 was shown in a special embodiment and with a finer structure. The additional transport system T ₂ in the example of FIG. 1 has the task of conveying empty cans F ₁ to the band deposit and to transport away the full cans F3 ejected in this band deposit 3. The control unit 30 of this transport system T ₂ is connected to the control unit 24 of the tape storage 3 via the path 29.

The exemplary embodiments shown relate on a route, however, is the proposal according to the invention not just limited to such machines.

reference numeral

1

route

2nd

Feed table

3rd

Tape storage

4th

Can rack

5

Transport vehicle

6

Guideline

7

Host computer

8th

connection

9

drive

10th

Sensors

11

path

12th

path

13

Control unit

14

management

15

path

16

path

17th

Control unit route

18th

Drive route

19th

Sensor system route

20th

path

21

path

22

connection

23

connection

24th

Control unit tape storage

25th

path

26

drive

27

path

28

Sensors

29

connection

30th

Host computer

31

Transport vehicle

32

connection

33

Guideline

34

Reverse loop

35

Motor electronics (single-sided stepper motor driver)

36

engine

37

connection

38

Attenuator

39

Display / operation

40

management

41

management

42

Power supply

43

management

44

management

45

management

46

management

47

management

48

connection

49

Pressure roller

50

Sliver

51

Reserve tape

52

Transfer point

53

Can sensor

54

management

A =

Work can

R =

Reserve jug

L =

Empty space

F =

Empty jug

F ₁ =

Filling can

F ₂ =

Full jug

T _{1 =}

Transport system

T ₂ =

Transport system

B =

Conveyor belt

S =

sensor

Claims (7)

1. A textile machine for processing textile material with a feed device (2) for feeding textile material as well as a belt tray (3) which is arranged downstream of the textile-processing machine and which delivers the delivered textile material to corresponding receiving stores (F2) and is provided with individual control units (13, 17, 24), a first control unit (13) being provided for the feed device (2) and a second control unit (17, 24) being provided for the belt tray (3) characterized in that the control unit (13, 24) of the feed device (2) and/or of the belt tray (3) communicates directly with a control unit (30, 7) for an automatic transporting system (T₁, T₂).
2. A textile machine according to Claim 1, characterized in that the feed device (2) comprises a plurality of circulating conveyor belts (B₁ to B₈ ) which feed the textile material to the textile-processing machine (1) in the form of slivers (50, 51).
3. A textile machine according to Claim 2, characterized in that a drive motor (36₁ to 36₈) connected to an electronic control unit (35₁ to 35₈) is associated with each conveyor belt (B₁ to B₈ ), and the respective electronic control unit (35₁ to 35₈) is connected to the control unit (13).
4. A textile machine according to Claim 2, characterized in that the number of conveyor belts (B₁ to B₈ ) is greater than the number of the slivers (50, 51) to be taken up by the textile-processing machine (1).
5. A textile machine according to Claim 4, characterized in that the conveyor belts (B₁ to B₈ ) are combined in pairs in the operating belt and reserve belt (B1, B2).
6. A textile machine according to Claim 2, characterized in that the conveyor belts (B₁ to B₈ ) are provided with a draw-off device (49) for drawing off the slivers (50, 51) out of the respectively associated textile-material stores (A).
7. A textile machine according to Claim 2, characterized in that the combination path (37) between the control and regulating unit (17) of the textile-processing machine (1) and the electronic control unit (35) of the drive motors (36) of a feed device (2) is provided with a damping member (38) for filtering out short-wave signals.

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