DE10229529A1 - Method and device for treating workpieces - Google Patents

Abstract

The method and the device are used to treat workpieces. At least one workpiece is inserted into a treatment station and positioned within the treatment station by a holding element. The treatment station is positioned along a circumferential transport route. Along the transport path, the treatment station is supplied with at least one item of equipment by a stationary supply device at least in one supply position relative to the transport direction.

Description

The invention relates to a method for the treatment of Workpieces in which at least one workpiece is in one Treatment station used and within the Treatment station is positioned by a holding element as well as where the treatment station along a circulating transport route is positioned.

The invention also relates to a device for Treatment of workpieces with at least one chamber Includes at least one workpiece and at the chamber is arranged in the area of a treatment station is, as well as at the treatment station of one Transport element along a circumferential transport path is positioned positionable.

Such methods and devices are, for example used to make plastics with surface coatings Mistake. In particular, there are already such Methods and devices known to make inner or outer To coat surfaces of containers used for Packing of liquids are provided. About that devices for plasma sterilization are also known.

In PCT-WO 95/22413 a plasma chamber is used Inside coating of bottles made of PET described. The too coating bottles are made by a movable Floor lifted into a plasma chamber and in the area a bottle mouth with an adapter brought. Evacuation can occur through the adapter of the bottle interior. In addition, by a hollow lance into the interior of the adapter Bottles introduced to supply process gas. An ignition of the plasma is done using a microwave.

From this publication it is already known a plurality of plasma chambers on a rotating wheel to arrange. This will result in a high production rate of Bottles supported per unit of time.

In EP-OS 10 10 773 a feed device explained to evacuate a bottle interior and with To supply process gas. In PCT-WO 01/31680 a Plasma chamber described, in which the bottles of one movable lid that was previously introduced with a Mouth area of the bottles was connected.

PCT-WO 00/58631 also already shows the arrangement of plasma stations on a rotating wheel and describes a group for such an arrangement Assignment of vacuum pumps and plasma stations to one favorable evacuation of the chambers and the interior of the Support bottles. In addition, the Coating of several containers in one Plasma station or a common cavity mentioned.

Another arrangement for performing a Internal coating of bottles is described in PCT-WO 99/17334 described. In particular, an arrangement of a Microwave generator above the plasma chamber and a Vacuum and equipment supply through a bottom of the Plasma chamber described through.

In the vast majority of known plasma coating processes, container layers made of silicon oxides with the general chemical formula SiO _x are used to improve the barrier properties of the thermoplastic material. In addition, portions of carbon, hydrogen and nitrogen can also be contained in the barrier layers produced in this way. Barrier layers of this type prevent oxygen from entering the packaged liquids and escape of carbon dioxide in the case of liquids containing CO ₂ .

It is also already known to process and Devices for the treatment of workpieces in Relation to the blow molding production of Containers from preforms suitably tempered apply. Such preforms typically exist made of a thermoplastic material, for example PET (polyethylene terephthalate). After a suitable one The preforms are subjected to thermal conditioning Blowing pressure converted into containers that for example as bottles for packaging Liquids are used. According to DE-OS 100 33 412 become blowing stations on a rotating blowing wheel arranged. The blowing wheel rotates continuously and on Take blowing stations arranged with the blowing wheel running the preforms to be deformed and give them ready produced containers. It is beyond that too Blown impellers that are already cyclically known.

For an optimization of the previously known methods and Devices are often so-called laboratory machines used, typically via a stationary have arranged treatment station. With the help of a Such laboratory machine can be the respective Optimize treatment parameters for the workpieces as a easy access is given. A disadvantage of that special laboratory machines is that both constructively as well as procedurally clear Differences to those with much greater performance operated production machines. A Transfer of the parameters obtained on the laboratory machines on the production machines therefore usually requires additional adaptation steps.

The object of the present invention is therefore a To specify methods of the type mentioned in the introduction, that parameter optimization for a production process is supported.

This object is achieved in that the Treatment station along the transport route at least a care positioning relative to Transport direction of at least one stationary stationary supply facility with at least one Equipment is supplied.

Another object of the present invention is a Device of the type mentioned in the introduction construct an optimization of the process parameters is supported.

This object is achieved in that at least one along the transport route Supply device is arranged, the at least one Coupling element and at least one supply connection for operating the treatment station at silent has standing transport element and that the Treatment station with at least one counter coupling Connection with the coupling of the supply device is provided.

Due to the stationary arrangement of a supply facility for the treatment station along the transport route it is possible to use any treatment station with suitable mating couplings is equipped, adjacent to Position utility and as Operate laboratory station for process optimization. Through the Use of a standard production station for the Laboratory operation and through the operation of this Treatment stations in at least very common Production conditions corresponding boundary conditions can the process optimizations obtained with little Transfer effort to actual serial production become. In addition, there is no need for an operator Need to get a separate laboratory machine to purchase. After all, it is possible with little Cyclical effort on the production machine used treatment stations in the area of Stop supply facility and here one Perform function check.

A typical application is that a laboratory operation for a plasma station.

It is also contemplated that a laboratory for one Blow station is performed.

To support electrical operation of the Treatment station is proposed as Equipment electrical energy is supplied.

In plasma applications in particular, it is thought that a negative pressure is supplied as the operating medium.

Another variant is that as a resource an overpressure is supplied.

To support an implementation of Plasma coatings are proposed as Operating material process gas is supplied.

In a laboratory operation of devices that Production operation at least partially cam-controlled operated, it proves to be useful that as Equipment mechanical drive energy is supplied.

A movement of the mechanical components can can be specified, for example, in that the mechanical drive energy is supplied pneumatically.

In addition, it is thought that the mechanical Drive energy is supplied electro-mechanically.

This ensures precise electrical controllability supports that the mechanical drive energy by a servo motor is supplied.

To support a flexible mode of operation suggested that for optional activation at least a function module for carrying out a Production company or to activate at least one Function module for performing a laboratory operation Control unit is used.

To support a laboratory operation is in particular also remembered that the control unit with at least a measuring device for monitoring a laboratory operation the treatment center is connected.

A typical application is that a workpiece is treated from a thermoplastic.

In particular, it is thought that an interior of the Workpiece is treated.

This makes it an extensive area of application concluded that a container is treated as a workpiece.

In particular, it is thought that as a workpiece a bottle of beverage is being treated.

To reduce the technical outlay for the Implementation of the laboratory operation is proposed that the control unit at least one also when performing a production plant with the treatment station connected equipment connection in laboratory operation activated and opposite a production plant modified is driven.

An increase in production capacity at only slightly increased equipment costs can be achieved by a plasma station multiple cavities are provided.

A mechanically highly resilient embodiment is provided that the treatment stations of a wheel ring-like plasma wheel can be transported.

A typical application is defined as: Plasma treatment a plasma coating is carried out.

In particular, it is thought that the plasma treatment performed using a low pressure plasma becomes.

When coating plastic workpieces it proves advantageous that a Plasma polymerization is carried out.

A good surface adhesion is supported by the fact that through the plasma at least partially organic substances be deposited.

Particularly advantageous use properties This allows workpieces for packaging food be achieved by the plasma at least in part inorganic substances are separated.

When it comes to the treatment of packaging, this is particularly important thought that through the plasma a substance for Improvement of the barrier properties of the workpiece is deposited.

To support a high quality of use proposed that in addition an adhesion promoter to Improving adherence of the substance on one Surface of the workpiece is deposited.

High productivity can be supported that at least two workpieces in a common cavity be treated at the same time.

Another area of application is that as Plasma treatment performed a plasma sterilization becomes.

It is also contemplated that as a plasma treatment Surface activation of the workpiece is carried out.

A metrological recording of parameters in the area of Treatment station is supported in that the Measuring device has at least one sensor.

Exemplary embodiments of the invention are shown in the drawings shown schematically. Show it:

Fig. 1 is a schematic diagram of a plurality of plasma chambers, which are arranged on a rotating plasma wheel and in which the plasma wheel is coupled to input and output wheels.

Fig. 2 shows an arrangement similar to Fig. 1, in which the plasma stations are each equipped with two plasma chambers,

Fig. 3 is a perspective view of a plasma wheel having a plurality of plasma chambers,

Fig. 4 is a perspective view of a plasma station with a cavity,

Fig. 5 is a front view of the device of FIG. 4 with a closed plasma chamber,

Fig. 6 shows a cross section according to section line VI-VI in Fig. 5,

Fig. 7 is a view corresponding to Fig. 5 with an open plasma chamber,

Fig. 8 is a vertical section according to section line VIII-VIII in Fig. 7,

Fig. 9 is an enlarged representation of the plasma chamber, to be coated bottle according to Fig. 6

Fig. 10 shows a further enlarged view of a connecting element for holding the workpiece in the plasma chamber,

Fig. 11 is a schematic representation of a positioning of a bottle-shaped workpiece within the plasma chamber using a pincer-like holding element, and

Fig. 12 is a block diagram showing a control structure for selectively activating a production plant or a laboratory operation of the apparatus.

From the illustration in FIG. 1, a plasma module (1) can be seen which is provided with a rotating plasma wheel (2). A plurality of plasma stations ( 3 ) are arranged along a circumference of the plasma wheel ( 2 ). The plasma stations ( 3 ) are provided with cavities ( 4 ) or plasma chambers ( 17 ) for receiving workpieces ( 5 ) to be treated.

The workpieces ( 5 ) to be treated are fed to the plasma module ( 1 ) in the area of an input ( 6 ) and forwarded via a separating wheel ( 7 ) to a transfer wheel ( 8 ) which is equipped with positionable support arms ( 9 ). The support arms ( 9 ) are arranged pivotably relative to a base ( 10 ) of the transfer wheel ( 8 ), so that a change in the distance of the workpieces ( 5 ) can be carried out relative to one another. As a result, the workpieces ( 5 ) are transferred from the transfer wheel ( 8 ) to an input wheel ( 11 ) with a greater distance between the workpieces ( 5 ) relative to one another relative to the separating wheel ( 7 ). The input wheel ( 11 ) transfers the workpieces ( 5 ) to be treated to the plasma wheel ( 2 ). After the treatment has been carried out, the treated workpieces ( 5 ) are removed from the area of the plasma wheel ( 2 ) by an output wheel ( 12 ) and transferred to the area of an output section ( 13 ).

In the embodiment according to FIG. 2, the plasma stations ( 3 ) are each equipped with two cavities ( 4 ) or plasma chambers ( 17 ). As a result, two workpieces ( 5 ) can be treated at the same time. Basically, it is possible to make the cavities ( 4 ) completely separate from one another, but in principle it is also possible to delimit only partial areas from one another in a common cavity space in such a way that an optimal coating of all workpieces ( 5 ) is ensured. In particular, it is contemplated here to separate the partial cavities from one another at least by means of separate microwave couplings.

Fig. 3 shows a perspective view of a plasma module ( 1 ) with a partially constructed plasma wheel ( 2 ). The plasma stations ( 3 ) are arranged on a support ring ( 14 ) which is designed as part of a rotary connection and is mounted in the area of a machine base ( 15 ). The plasma stations ( 3 ) each have a station frame ( 16 ) which holds plasma chambers ( 17 ). The plasma chambers ( 17 ) have cylindrical chamber walls ( 18 ) and microwave generators ( 19 ).

Rotary distributors ( 20 , 21 ) are arranged in a center of the plasma wheel ( 2 ), via which the plasma stations ( 3 ) are supplied with operating resources and energy. Ring lines ( 22 ) in particular can be used for the distribution of operating resources.

The workpieces ( 5 ) to be treated are shown below the cylindrical chamber walls ( 18 ). Lower parts of the plasma chambers ( 17 ) are not shown for the sake of simplicity.

Fig. 4 shows a plasma station ( 3 ) in perspective. It can be seen that the station frame ( 16 ) is provided with guide rods ( 23 ) on which a carriage ( 24 ) for holding the cylindrical chamber wall ( 18 ) is guided. Fig. 4 shows the carriage ( 24 ) with the chamber wall ( 18 ) in a raised state, so that the workpiece ( 5 ) is released.

The microwave generator ( 19 ) is arranged in the upper region of the plasma station ( 3 ). The microwave generator ( 19 ) is connected via a deflection ( 25 ) and an adapter ( 26 ) to a coupling channel ( 27 ) which opens into the plasma chamber ( 17 ). In principle, the microwave generator ( 19 ) can be coupled both directly in the area of the chamber cover ( 31 ) and via a spacer element to the chamber cover ( 31 ) with a predeterminable distance to the chamber cover ( 31 ) and thus in a larger surrounding area of the chamber cover ( 31 ) , The adapter ( 26 ) has the function of a transition element and the coupling channel ( 27 ) is designed as a coaxial conductor. A quartz glass window is arranged in the region of a junction of the coupling channel ( 27 ) in the chamber cover ( 31 ). The deflection ( 25 ) is designed as a waveguide.

The workpiece ( 5 ) is positioned in the area of a sealing element ( 28 ) which is arranged in the area of a chamber base ( 29 ). The chamber base ( 29 ) is designed as part of a chamber base ( 30 ). To facilitate adjustment, it is possible to fix the chamber base ( 30 ) in the area of the guide rods ( 23 ). Another variant is to attach the chamber base ( 30 ) directly to the station frame ( 16 ). With such an arrangement, it is also possible, for example, to design the guide rods ( 23 ) in two parts in the vertical direction.

FIG. 5 shows a front view of the plasma station ( 3 ) according to FIG. 3 in a closed state of the plasma chamber ( 17 ). The carriage ( 24 ) with the cylindrical chamber wall ( 18 ) is lowered compared to the positioning in FIG. 4, so that the chamber wall ( 18 ) has moved against the chamber bottom ( 29 ). The plasma coating can be carried out in this positioning state.

FIG. 6 shows the arrangement according to FIG. 5 in a vertical sectional view. It can be seen in particular that the coupling channel ( 27 ) opens into a chamber cover ( 31 ) which has a laterally projecting flange ( 32 ). A seal ( 33 ) is arranged in the area of the flange ( 32 ) and is acted upon by an inner flange ( 34 ) of the chamber wall ( 18 ). In a lowered state of the chamber wall (18) therethrough, a seal is made of the chamber wall (18) relative to the chamber lid (31). A further seal ( 35 ) is arranged in a lower region of the chamber wall ( 18 ) in order to ensure a seal here also relative to the chamber bottom ( 29 ).

In the positioning shown in FIG. 6, the chamber wall ( 18 ) encloses the cavity ( 4 ), so that both an interior of the cavity ( 4 ) and an interior of the workpiece ( 5 ) can be evacuated. To support a supply of process gas, a hollow lance ( 36 ) is arranged in the area of the chamber base ( 30 ) and can be moved into the interior of the workpiece ( 5 ). The lance ( 36 ) is positioned by a lance slide ( 37 ) which can be positioned along the guide rods ( 23 ). A process gas channel ( 38 ) runs inside the lance slide ( 37 ) and, in the raised position shown in FIG. 6, is coupled to a gas connection ( 39 ) of the chamber base ( 30 ). This arrangement avoids hose-like connecting elements on the lance slide ( 37 ).

Fig. 7 and Fig. 8 show the arrangement of FIG. 5 and FIG 6 in a raised state of the chamber wall (18).. In this position of the chamber wall ( 18 ), it is possible to remove the treated workpiece ( 5 ) from the area of the plasma station ( 3 ) and to insert a new workpiece ( 5 ) to be treated. As an alternative to the positioning of the chamber wall ( 18 ) shown in the drawings in an open state of the plasma chamber ( 17 ) achieved by displacement upwards, it is also possible to carry out the opening process by displacing a structurally modified sleeve-shaped chamber wall downwards in the vertical direction.

In the exemplary embodiment shown, the coupling channel ( 27 ) has a cylindrical design and is arranged essentially coaxially with the chamber wall ( 18 ).

FIG. 9 shows the vertical section according to FIG. 6 in an enlarged partial illustration in the vicinity of the chamber wall ( 18 ). In particular, the overlap of the inner flange ( 34 ) of the chamber wall ( 18 ) over the flange ( 32 ) of the chamber cover ( 31 ) and the holding of the workpiece ( 5 ) by the holding element ( 28 ). In addition, it can be seen that the lance ( 36 ) is guided through a recess ( 40 ) in the holding element ( 28 ).

The positioning of the workpiece ( 5 ) in the area of the sealing element ( 28 ) can be seen in the enlarged illustration in FIG. 10. The sealing element ( 28 ) is inserted into a guide sleeve ( 41 ) which is provided with a spring chamber ( 42 ). A compression spring ( 43 ) is inserted into the spring chamber ( 42 ) and clamps an outer flange ( 44 ) of the sealing element ( 28 ) relative to the guide sleeve ( 41 ).

In the positioning shown in FIG. 10, a thrust plate ( 45 ) mounted on the lance ( 36 ) is guided against the outer flange ( 44 ) and presses the sealing element ( 28 ) into its upper end position. In this positioning, an interior of the workpiece ( 5 ) is insulated from the interior of the cavity ( 4 ). In a lowered state of the lance ( 36 ), the compression spring ( 43 ) displaces the sealing element ( 28 ) relative to the guide sleeve ( 41 ) in such a way that a connection between the interior of the workpiece ( 5 ) and the interior of the cavity ( 4 ) is created.

Fig. 11 shows the positioning of the workpiece ( 5 ) within the plasma chamber ( 17 ) with the aid of a holding element ( 46 ). The holding element ( 46 ) is designed like pliers and has two pivotably mounted holding arms ( 47 , 48 ). The holding arms ( 47 , 48 ) can be pivoted relative to axes of rotation ( 49 , 50 ). To ensure automatic fixation of the workpiece ( 5 ) by the holding element ( 46 ), the holding arms ( 47 , 48 ) are pressed by springs ( 51 , 52 ) into a respective holding position.

The holding element ( 46 ) is arranged above the chamber base ( 30 ), so that after lifting the chamber wall ( 18 ) there is lateral accessibility of the holding element ( 46 ). The workpiece ( 5 ) can thereby be transferred from a positioning element to the holding element ( 46 ) without a lifting movement of the workpiece ( 5 ) in the direction of a longitudinal axis ( 53 ) of the cavity.

Fig. 12 shows a schematic block diagram for illustrating the process sequence in a selective activation of a control for carrying out a production plant or a laboratory operation. A corresponding control sequence is also implemented in the device according to the invention. Fig. 12 this shows a control unit (54) which is provided with an input device (55) and a display device (56). Using the input device ( 55 ), it is possible to activate different function modules ( 57 ). At least one of the function modules ( 57 ) is provided for carrying out a production operation; moreover, several different function modules ( 57 ) can be selected for carrying out different service programs. At least one of the function modules ( 57 ) is configured to carry out a laboratory operation.

The function module ( 57 ) for a laboratory operation of the machine is typically activated after the selected treatment station, in the present exemplary embodiment the selected plasma station ( 3 ), has been arranged at the positioning for the laboratory operation. At this position, a connection to the required external media supplies is made manually or automatically. It is possible to supply all the required media externally, but in particular it is also contemplated to use media supplies connected to the treatment station even in production operation and only to use a control of the media supplies adapted for laboratory operation. The supply of external operating equipment relates, for example, to the supply of negative pressure, positive pressure, electrical energy, mechanical drive energy or special control sequences for carrying out a laboratory operation.

When activating a laboratory for one Blowing machine is especially thought of that Supply device with a heating device for the To provide preforms. The heater can for example with infrared radiators or microwave Spotlights. With such a Embodiment is also particularly thought of Preforms manually in the area of the heating device position and a handover from the heater the processing station placed in the laboratory perform automatically.

It is also the case when the Laboratory operation for machines for plasma treatment as well possible with blow molding machines, with normal Production used safety devices too activate to support safe operation. The safety devices can, for example monitoring the proper closing of access doors and the proper implementation of pneumatic connections.

The workpieces ( 5 ) are typically inserted manually in laboratory operation, but automation or at least partial automation can also be carried out.

A typical treatment process is explained below using the example of a coating process and carried out in such a way that first the selected plasma station ( 3 ) is stopped by rotating the plasma wheel ( 2 ) at the position provided for carrying out the laboratory operation. The control operation of the laboratory operation is then carried out via the control unit ( 54 ). The workpiece ( 5 ) is then inserted into the plasma station ( 3 ) in a pushed-up state of the sleeve-like chamber wall ( 18 ). After the insertion process has been completed, the chamber wall ( 18 ) is lowered into its sealed position and, at the same time, both the cavity ( 4 ) and an interior of the workpiece ( 5 ) are evacuated at the same time.

After sufficient evacuation of the interior of the cavity ( 4 ), the lance ( 36 ) is inserted into the interior of the workpiece ( 5 ) and the sealing of the interior of the workpiece ( 5 ) from the interior of the workpiece ( 5 ) is sealed off by a displacement of the sealing element ( 28 ). 4 ) performed. It is also possible to move the lance ( 36 ) into the workpiece ( 5 ) synchronously with the beginning of the evacuation of the interior of the cavity. The pressure in the interior of the workpiece ( 5 ) is then further reduced. In addition, the positioning movement of the lance ( 36 ) is at least partially already carried out parallel to the positioning of the chamber wall ( 18 ). After reaching a sufficiently low vacuum, process gas is introduced into the interior of the workpiece ( 5 ) and the plasma is ignited with the aid of the microwave generator ( 19 ).

In particular, it is intended to use the plasma to deposit both an adhesion promoter and the actual barrier layer made of silicon oxides on the inner surfaces of the workpieces ( 5 ).

The adhesion promoter can be applied, for example, in a two-stage process as the first stage before the barrier layer is applied in the second stage, but it is also conceivable, in a continuous process, to simultaneously use at least one part of the barrier layer facing the workpiece ( 5 ) as a gradient layer at the same time to produce at least a part of the adhesion promoter. Such a gradient layer can be produced in a simple manner during the duration of a plasma which has already been ignited by changing the composition of the process gas. Such a change in the composition of the process gas can be achieved abruptly by changing valve controls or continuously by changing the mixing ratio of components of the process gas.

A typical structure of a gradient layer is such that a part of the gradient layer facing the workpiece ( 5 ) contains at least a predominant proportion of the adhesion promoter and at least a majority of the barrier material is contained in a part of the gradient layer facing away from the workpiece ( 5 ). A transition of the respective components takes place continuously in at least part of the gradient layer in accordance with a predeterminable gradient curve. In a similar way, it is possible to produce both the layer for promoting adhesion and the barrier layer itself as gradient layers.

The interior of the plasma chamber ( 17 ) and the interior of the workpiece ( 5 ) are first evacuated together to a pressure level of approximately 20 mbar to 50 mbar. The pressure in the interior of the workpiece ( 5 ) is then further reduced to approximately 0.1 mbar. A vacuum of about 0.3 mbar is maintained while the treatment process is being carried out.

After the coating process has been completed, the lance ( 36 ) is removed from the interior of the workpiece ( 5 ) and the plasma chamber ( 17 ) and the interior of the workpiece ( 5 ) are ventilated. After reaching the ambient pressure within the cavity ( 4 ), the chamber wall ( 18 ) is raised again in order to remove the coated workpiece ( 5 ) and to enter a new workpiece ( 5 ) to be coated. To enable the workpiece ( 5 ) to be positioned laterally, the sealing element ( 28 ) is moved back into the chamber base ( 30 ) at least in some areas.

As an alternative to the described inner coating of workpieces ( 5 ), outer coatings, sterilizations or surface activations can also be carried out.

The chamber wall ( 18 ), the sealing element ( 28 ) and / or the lance ( 36 ) can be positioned using different drive units. In principle, the use of pneumatic drives and / or electrical drives, in particular in one embodiment as a linear motor, is conceivable.

After completion of the laboratory operation, as shown in FIG. 12, the external media provided by the supply device are separated and a return to a production process is possible.

Claims (53)

1. A method for the treatment of workpieces, in which at least one workpiece is inserted into a treatment station and positioned within the treatment station by a holding element, and in which the treatment station is positioned along a circumferential transport path, characterized in that the treatment station along the transport path at least a supply positioning relative to the transport direction is supplied with at least one operating medium by at least one stationary supply device. 2. The method according to claim 1, characterized in that a laboratory operation for a plasma station ( 3 ) is carried out. 3. The method according to claim 1, characterized in that a laboratory operation for a blowing station is carried out. 4. The method according to any one of claims 1 to 3, characterized characterized in that electrical energy as a resource is fed. 5. The method according to any one of claims 1 to 3, characterized characterized in that a vacuum as a resource is fed. 6. The method according to any one of claims 1 to 3, characterized characterized in that an overpressure is fed. 7. The method according to any one of claims 1 to 3, characterized characterized in that process gas is supplied as the operating medium becomes. 8. The method according to any one of claims 1 to 3, characterized characterized in that mechanical Drive energy is supplied. 9. The method according to claim 8, characterized in that the mechanical drive energy is supplied pneumatically. 10. The method according to claim 8, characterized in that the mechanical drive energy is electro-mechanical is fed. 11. The method according to claim 10, characterized in that the mechanical drive energy from a servo motor is fed. 12. The method according to any one of claims 1 to 11, characterized in that a control unit ( 54 ) is used to selectively activate at least one function module ( 57 ) to carry out a production operation or to activate at least one function module ( 57 ) to carry out a laboratory operation. 13. The method according to claim 12, characterized in that the control unit ( 54 ) is connected to at least one measuring device for monitoring a laboratory operation of the treatment station. 14. The method according to any one of claims 1 to 13, characterized in that a workpiece ( 5 ) is treated from a thermoplastic. 15. The method according to any one of claims 1 to 14, characterized in that an interior of a hollow workpiece ( 5 ) is treated. 16. The method according to any one of claims 1 to 15, characterized in that a container is treated as the workpiece ( 5 ). 17. The method according to any one of claims 1 to 16, characterized in that a beverage bottle is treated as the workpiece ( 5 ). 18. The method according to any one of claims 1 to 17, characterized in that the control unit ( 54 ) activates at least one operating means connection also connected to the treatment station when carrying out a production operation in laboratory operation and is controlled in a modified manner relative to a production operation. 19. The method according to any one of claims 1 to 18, characterized in that a plurality of cavities ( 4 ) are provided by a plasma station ( 3 ). 20. The method according to any one of claims 1 to 19, characterized in that the treatment stations are transported by a wheel ring-like plasma wheel ( 2 ). 21. The method according to any one of claims 1 to 20, characterized characterized in that as a plasma treatment Plasma coating is carried out. 22. The method according to any one of claims 1 to 21, characterized characterized in using the plasma treatment a low pressure plasma is carried out. 23. The method according to any one of claims 1 to 22, characterized characterized in that a plasma polymerization was carried out becomes. 24. The method according to any one of claims 1 to 23, characterized characterized in that at least in part by the plasma organic substances are separated. 25. The method according to any one of claims 1 to 23, characterized characterized in that at least in part by the plasma inorganic substances are separated. 26. The method according to any one of claims 1 to 25, characterized in that at least one substance is deposited by the plasma to improve the barrier properties of the workpiece ( 5 ). 27. The method according to claim 26, characterized in that in addition an adhesion promoter for improving an adherence of the substance is deposited on a surface of the workpiece ( 5 ). 28. The method according to any one of claims 1 to 27, characterized in that at least two workpieces ( 5 ) are treated simultaneously in a common cavity. 29. The method according to any one of claims 1 to 20, characterized characterized in that as a plasma treatment Plasma sterilization is carried out. 30. The method according to any one of claims 1 to 20, characterized in that a surface activation of the workpiece ( 5 ) is carried out as a plasma treatment. 31. Device for treating workpieces at least one chamber for receiving at least one Has workpiece and in which the chamber in the area a treatment station is arranged, and at which the Treatment station from a transport element along a circumferential transport path is arranged to be positionable, characterized in that along the transport route at least one supply device is arranged, the at least one coupling element and at least one Supply connection for an operation of the Treatment station with the transport element stationary has and that the treatment station with at least a mating coupling for connection to the coupling of the Supply facility is provided. 32. Apparatus according to claim 31, characterized in that the treatment station is designed as a plasma station ( 3 ). 33. Device according to claim 31, characterized in that that the treatment station is designed as a blowing station is. 34. Device according to one of claims 31 to 33, characterized characterized in that the supply device for Supply of electrical energy is formed. 35. Device according to one of claims 31 to 33, characterized characterized in that the supply device for Supply of negative pressure is formed. 36. Device according to one of claims 31 to 33, characterized characterized in that the supply device for Supply of excess pressure is formed. 37. Device according to one of claims 31 to 33, characterized characterized in that the supply device for Supply of process gas is formed. 38. Device according to one of claims 31 to 33, characterized characterized in that the supply device for Supply of mechanical drive energy is formed. 39. Apparatus according to claim 38, characterized in that the supply device for the pneumatic supply of mechanical drive energy is formed. 40. Device according to claim 38, characterized in that the supply device for electro-mechanical Supply of mechanical drive energy is formed. 41. Device according to claim 40, characterized in that the supply facility at least one Servo drive to provide mechanical Has drive energy. 42. Device according to one of claims 31 to 41, characterized in that for controlling the supply device at least one control unit ( 54 ) is provided which has an input device ( 55 ) for selectively activating at least one function module ( 57 ) for a production operation and at least one function module ( 57 ) for a laboratory operation. 43. Apparatus according to claim 42, characterized in that the control unit ( 54 ) is provided with at least one measuring device for monitoring the treatment station in laboratory operation. 44. Device according to one of claims 31 to 43, characterized in that the plasma station ( 3 ) is designed for coating a workpiece ( 5 ) consisting of a thermoplastic material. 45. Device according to one of claims 31 to 44, characterized in that the plasma station ( 3 ) is designed for coating a container-like workpiece ( 5 ). 46. Device according to one of claims 31 to 45, characterized in that the plasma station ( 3 ) is designed for coating an interior of a hollow workpiece ( 5 ). 47. Device according to one of claims 31 to 46, characterized in that the plasma station ( 3 ) is designed for coating a workpiece ( 5 ) designed in the form of a beverage bottle. 48. Device according to one of claims 31 to 47, characterized in that the at least one plasma station ( 3 ) is carried by a rotating plasma wheel ( 2 ). 49. Device according to one of claims 31 to 48, characterized in that a plurality of cavities ( 4 ) are arranged in the region of the plasma station ( 3 ). 50. Device according to one of claims 31 to 49, characterized in that one for providing at least two cavities ( 4 ) provided chamber wall ( 18 ) is arranged positionable. 51. Device according to one of claims 31 to 50, characterized in that the plasma wheel ( 2 ) is designed as a wheel ring. 52. Device according to claim 43, characterized in that the measuring device has at least one sensor. 53. Device according to one of claims 31 to 52, characterized in that the control unit ( 54 ) is designed both for controlling at least one operating medium supply in the region of the supply device and for controlling at least one operating medium supply, which with at least two different positions of the transport element Treatment station is connected.