DE102005020579A1 - Cheese making textile machine - Google Patents

Abstract

According to the invention, the workstations computer (22) of the workstations (20) of the cross-wound textile machine are each to be connected by means of a workstation field bus (23) to separate functional groups (26a, 26b, 26c, 26d, 26e) of the respective workstation (20). As a result, a high degree of flexibility is created, which allows a subsequent adaptation of the job (20) with little effort.

Description

The The invention relates to a cross-wound textile machine with a variety of similar jobs, each one Have a plurality of functional groups and a workstation computer, the connected by means of a machine field bus to a central computer is.

Such known by numerous patents textile machines are used for rewinding yarn from cops on cheeses (eg DE 199 05 860 A1 ) or for spinning yarn and winding on cheeses (eg DE 44 04 503 A1 or 101 39 075 A1 ) used.

The Workplaces of these textile machines provide in certain Scope self-sufficient acting units.

In Winding machines are these units each for connecting, monitoring, Clamping, cleaning, paraffinizing and winding of the originating from cops Garns trained on a cheese and to change the cops.

In Spinning machines are these units each for supplying the Fibers to the spin organ, to spin the fibers, to wax, monitor and winding the spun yarn and possibly formed for piecing.

To For this purpose, the jobs have a large number of functional groups on. This can be, for example Be sensors or actuators of different types, the fiber supply, the handling of the cops, the yarn and the cheeses serve.

The Function groups are with a workstation own computer connected. For actuators closes such a functional group additionally one so called power card with one that works both with the workstation as well as being coupled to a power supply to the actuator too operate.

For connecting a central computer of the textile machine with the plurality of workstation computers, it is further by the DE 39 28 831 A1 known to use a fieldbus system.

to Connection of the workstation computer with the functional groups of the Workplace, such as stepper motors for controlling Magazines with cops, funding for sliver feeding, means for controlling the winding position of Yarns on the cross-wound bobbin, thread connecting devices and associated thread feeders, are each cable connections between the workstation computer and the respective function groups and each of the power supply and the for the operation of the actuators provided necessary power cards.

When A disadvantage is considered in such textile machines that the Workplace computer already in the design of the job adapted to a concrete expansion with functional groups got to.

Around latter changes on individual function groups or the integration of further functional groups to permit, the workstation computer must e.g. concerning his connection options in view of future Need to be trained, which leads to increased costs. Also achieved the wiring of existing from a variety of jobs Textile machine with increasing number of functional groups one very high degree of complexity.

task The invention is to have a variety of jobs Textile machine to propose their jobs with respect to the functional groups to be connected are flexible and the reduced internal wiring effort require.

These Task is inventively characterized solved, that the jobs of a generic textile machine respectively by means of a job fieldbus with the associated function groups the job are connected.

At the workstation fieldbus any function groups connected with their associated circuit board even if these are still at the time of conception of the job computer were not planned.

There the transfer of data over the workstation fieldbus is done, the number is at the workstation computer to be provided connections independently on the number of functional groups used in the workplace and hang only from the fieldbus used.

If a new function group is added to the job or exchanged an existing function group for a technically modified one This is done by simply coupling the function group into reaches the fieldbus without any additional wiring to the workstation computer must be created.

This leads next the heightened Flexibility too to a reduced wiring costs.

As is particularly advantageous due to the low cost, the use of a one-wire field bus, the voltage level should be high enough to ensure a sufficient signal to noise ratio.

In a development of the invention is the Arbeitsstellenfeldbus designed as a CAN bus.

Of the CAN bus is re its specifications in terms of response times and bus length for use very well suited in jobs.

The Using a standard fieldbus system also results in low cost due to the high availability of components.

In a development of the invention are the Arbeitsstellenfeldbus and a power supply line and a ground line within the work site as a harness assembled and laid together to to facilitate the laying. This also reduces the effort when connecting new Function groups. These are at the wiring harness at any point, So also close to the installation point of the function group, plug contacts, preferably connectable with insulation displacement connectors, which in turn with corresponding plug contacts the functional groups, that is, in particular the printed circuit board of the respective function group easily releasably connected can be.

In a development of the invention are the printed circuit boards certain Function groups identical. Identical circuit boards can be used for Example for each higher Current load or lower current load can be used. As a result, the interchangeability of the printed circuit boards between different Function groups possible and reduces the variety of parts. Besides, it can of course be for special functions still give special cards.

In a development of the invention is the Arbeitsstellenfeldbus designed such that a contacting of a bus line of the Arbeitsfeldfeldbusses with ground not to a short circuit damage one on the fieldbus sending function group.

This is preferably achieved in that the bus with a supply voltage source for the bus voltage via a Resistance is connected and the functional groups are so formed that when sending a connection between the bus and Create mass. An unwanted connection between the bus line and the mass leads Although to a failure of the job field bus, but not too Damage to the sending function groups because the current is limited by the resistance becomes.

The Advantages of the invention are particularly evident in the application on a winder, usually 10 to 60 having similar winding units or a spinning machine, such as a rotor spinning machine with up to more than 300 identical spinning stations.

Further Features and advantages of the invention will become apparent from the following Description of the embodiment shown in the drawing.

The single figure shows a schematic view of a part of a textile machine according to the invention with several jobs according to the invention.

The illustrated textile machine 10 has a central computer 12 which is connected to a machine-field bus 14 connected. In addition, the textile machine has 10 via a DC power supply 16 , In the textile machine 10 used are a variety of job modules 20 , each with the machine field bus 14 and the DC power supply 16 are connected. The job modules are shown here only schematically and in detail for example the DE 199 05 860 A1 for a winder and the DE 44 04 503 A1 and the DE 101 39 075 A1 for a spinning machine.

Inside the job modules 20 are each a workstation computer 22 and a transformer 24 provided, each workstation computer 22 to the machine field bus 14 is connected and every transformer 24 with the DC power supply 16 connected is. The transformer 24 It is used to convert the DC power supply 16 supplied voltage of 275V to a voltage of 24V, intended for the control of the job module 20 is required.

In addition, each workstation module has function groups shown schematically 26a to 26e whose number could be extended almost arbitrarily. In the case of a winding machine, these functional groups may be drives for a thread connecting device including cutting and clamping devices for the thread ends, thread feeders such as a gripper tube for the thread fed from the cop and a suction nozzle for the thread retrieved from the cross-wound package, a thread tensioner, a cop changer or a paraffin means for growing the yarn or a drive which controls the laying of the thread along the cheese. Other functional groups may also be connected to the workstation computer, valves controlling the pressure in suction tubes or splice channels, and sensors of various types, such as a Cleaner for monitoring the thread or a yarn tension sensor.

in the Trap of a spinning machine may be drives of the feed rollers for the Sliver feeder, take-off rollers for the spun yarn, drives for the spin agent, a suction nozzle for the retrieved from the cheese Thread, a waxing device and laying the thread act along the cheese. Again, valves can, for example for compressed air supply for preparing the yarn ends for piecing or sensors form functional groups.

The functional groups 26a to 26e are each via connectors 27 to a job fieldbus 23 connected to the workstation computer 22 connected. Furthermore, the functional groups 26a to 26e each with the transformer 24 via a power line 25 and with ground via a ground line 29 connected.

The power line 25 , the ground line 29 as well as the single-wire workstation fieldbus 23 are as a harness 30 executed. Is the transformer 24 in the housing of the workstation computer 22 housed, is the wiring harness 30 led into the housing. A separate power wiring is not required.

The textile machine accordingly has a machine field bus 14 and one workstation field bus per workstation 23 ,

This hierarchical structure in which the workstation computer 22 every job module 20 as an intelligent converter and control unit for the function groups 26a to 26e serves, allows a particularly flexible adaptation of the job modules 20 , When in a job module 20 one of the functional groups 26a to 26e is replaced with another, not identical functional group or if a completely new functional group is added to a job module, is only necessary for adaptation, the new function group at any point with the harness 30 connect and, if necessary, the control program in the workstation computer 22 adapt. Regarding its hardware, the workstation computer needs 22 not adapted to newly added or changed function groups.

A plug connection 27 Can be located anywhere on the cable harness 30 be mounted by means of insulation displacement connectors and stands for the plug contact with the respective function group 26a to 26e or the printed circuit board of the function group available. This makes it possible to quickly replace defective function groups or printed circuit boards, as well as function-related replacement by other function groups. This flexibility allows for quick changeover of workstations while significantly changing functionality. In addition, other plug connections 27 on the cable harness 30 which allow additional functional groups.

Are subject to several functional groups 26a to 26e a similar, for example, a relatively low current load, the associated circuit boards may be identical. They have the usual equipment with inputs and outputs for sensors and actuators, connections for controlling, for example, stepper motors and a microprocessor. When reinstalling or replacing the function group takes place in the workstation computer 22 a change in the software either from the central computer 12 over the engine field bus 14 or by "docking" an input device to the workstation computer 22 , Thereafter, the specific commands can be sent to the address of the relevant function group and implemented via the circuit board of the function group. If no replacement card is available in the event of a printed circuit board failure, an identical card of another functional group, which is of minor importance for the maintenance of the spinning or winding process and which can be dispensed with at least temporarily, can be used instead of the defective card and fulfills the requirements there Function of the defective card in the same way. In addition, it is advantageous if only a few different cards, for example for low power, high power or special cards, must be stocked.

Claims (9)

Textile machine producing cross-wound bobbins ( 10 ) with a large number of similar jobs ( 20 ), each having a plurality of functional groups ( 26a . 26b . 26c . 26d . 26e ) and a workstation computer ( 22 ), which by means of a machine field bus ( 14 ) with a central computer ( 12 ) of the textile machine, characterized in that the workstation computers ( 22 ) of the jobs ( 20 ) each by means of a working field field bus ( 23 ) with the various functional groups ( 26a . 26b . 26c . 26d . 26e ) of the respective job ( 20 ) are connected. Textile machine producing cross-wound bobbins ( 10 ) according to claim 1, characterized in that the workstation field bus is a one-wire fieldbus. Textile machine producing cross-wound bobbins ( 10 ) according to claim 1 or 2, characterized in that the workstation field bus ( 23 ) is a CAN bus. Textile machine producing cross-wound bobbins ( 10 ) according to one of claims 1 to 3, characterized in that the workstation field buses ( 23 ) and in each case a power supply line ( 25 ) and in each case a ground line ( 29 ) within the workplaces ( 20 ) are published together. Textile machine producing cross-wound bobbins ( 10 ) according to one of the preceding claims, characterized in that to the workstation field buses ( 23 ) Plug contacts ( 27 ) can be connected, which with corresponding plug contacts of the respective function groups ( 26a . 26b . 26c . 26d . 26e ) can be connected easily detachable. Textile machine producing cross-wound bobbins ( 10 ) according to one of the preceding claims, characterized in that the functional groups ( 26a . 26b . 26c . 26d . 26e ) Have groups of identical printed circuit boards, in particular low-current printed circuit boards and high-current printed circuit boards. Textile machine producing cross-wound bobbins ( 10 ) according to one of the preceding claims, characterized in that the workstation field buses ( 23 ) are formed so that a contacting of a bus line of the Arbeitsfeldfeldbusses ( 23 ) with mass ( 28 ) does not cause a short-circuit damage to the workstation field bus ( 23 ) sending function group ( 26a . 26b . 26c . 26d . 26e ) leads. Textile machine producing cross-wound bobbins ( 10 ) according to one of the preceding claims, characterized in that the jobs ( 20 ) Winding units of a winding machine and the functional groups ( 26a . 26b . 26c . 26d . 26e ) are formed, for example, from thread connection devices, cleaners, paraffining devices, Fadenzubringern, tensioners or Kopswechseleinrichtungen. Textile machine producing cross-wound bobbins ( 10 ) according to one of the preceding claims, characterized in that the work stations are spinning stations of a spinning machine and the functional groups ( 26a . 26b . 26c . 26d . 26e ) consist, for example, of thread laying devices, thread feeders, paraffin devices, valves for controlling compressed air and sensors of various types.