WO2023061887A1

WO2023061887A1 - Set-up system for treating the interior of a pipe, and device for treating the interior of a pipe

Info

Publication number: WO2023061887A1
Application number: PCT/EP2022/077986
Authority: WO
Inventors: Florian Jarsch
Original assignee: TRUMPF Werkzeugmaschinen SE + Co. KG
Priority date: 2021-10-15
Filing date: 2022-10-07
Publication date: 2023-04-20
Also published as: DE102021126834A1

Abstract

The invention relates to a set-up system (14) for a device (10) for treating the interior of a pipe (12), wherein a drive unit (24) unrolls a media conduit (28) guided via a drive cassette (42) from a reel (38) and introduces said media conduit into the pipe (12), wherein the drive unit (24) rolls up the media conduit (28) onto the reel (38), and wherein the drive unit (24) can be moved from a freewheeling position into a driving position with the media conduit (28) for rolling up and/or unrolling. The invention also relates to a device (10) for treating the interior of a pipe (12).

Description

Set-up system for treating the inside of a pipe and device for treating the inside of a pipe

Background of the Invention

The invention relates to a set-up system for a device for treating the inside of a pipe, having at least one media guide, a drive unit, a cassette unit and a drum unit with at least one drum, the media guide being able to be arranged on the drum such that it can be rolled up and/or unrolled and at one end to accommodate a tool designed to treat the inside of the pipe. The invention also relates to a device for treating the inside of a pipe.

Such set-up systems and devices are known from the prior art and are used in the technical field of tube processing. In the case of separating tube processing by means of milling or laser cutting, in particular, it is often necessary to pretreat the inside of the tube to be processed, which is difficult to access. A common form of internal treatment is wetting the inner wall of the pipe with a separating agent, which on the one hand serves to protect the pipe and on the other hand prevents slag and dirt from adhering. As a result, the quality of the tube processing can be increased.

One way of wetting the inner wall of the pipe with a release agent is to insert a nozzle system manually. However, this approach is time-consuming and associated with high costs. Therefore, a device for motorized insertion of the nozzle system is often used.

DE 10 2010 047 589 A1 discloses a mobile device for treating the inside of pipes, in particular coolant pipes of steam condensers and heat exchangers, which has an application hose wound up on a driven drum. The application hose is unwound by means of a separate drive that is permanently in a drive position and inserted into a pipe to be treated. In the event of a device defect or a defect in the driven drum or the drive, the application hose can only be rolled up onto the drum with difficulty against the drive resistance moments that occur. In addition, the device must be aligned in a corresponding starting position for each internal treatment and then operated manually. With regard to an automated internal treatment of pipes, these are only insufficient prerequisites.

object of the invention

It is the object of the invention to propose a process-reliable, cost-effective and automatable set-up system and a device for process-reliable, cost-effective and automated internal treatment of pipes.

Description of the invention

This object is achieved according to the invention by a set-up system according to patent claim 1 and a device for treating the inside of a pipe according to patent claim 13.

In other words, the object is achieved by a set-up system for a device for treating the inside of a pipe, having at least one media guide, a drive unit, a cassette unit and a drum unit with at least one drum. The media guide can be arranged on the drum such that it can be rolled up and/or unrolled. In other words, the media guide is designed to be flexible and/or bendable at least about one axis. The media guide is preferably designed in multiple parts, in particular in multiple parts, with the partial elements being arranged on one another so that they can move relative to one another. As a result, the ability to be rolled up and/or unrolled can be improved.

The media guide is designed at one end to accommodate a tool for treating the inside of the pipe. The media guide preferably has an adapter, in particular a quick-release adapter, for easy accommodation and interchangeability of a number of different tools. As a result, the media guide can be used even more flexibly.

The other end of the media guide is designed for placement on the drum. For this purpose, the media guide preferably has a fastening means, in particular a screw connection, for permanent fastening to the drum. This ensures a particularly secure arrangement of the media guide on the drum.

The drive unit has, in particular precisely, a drive. The drive is designed, in particular only, for rolling up and/or unrolling the media guide. In other words, the media guide is set into a translational movement relative to the drive by the drive. This enables process-reliable control of the drive. The drive is preferably designed as an electric motor. As a result, the media guide can be unrolled and/or rolled up particularly effectively and economically.

Furthermore, the drive is designed to be movable from a free-running position into a drive position with the media guide. In other words, the drive and/or the drive unit can be locally changed, e.g. pushed, pivoted, rotated, tilted etc. and/or designed to be coupled. Preferably, the drive unit and/or the drive is designed to be movable on at least one rail. As a result, a movement control that can be easily mapped in terms of process technology can take place quickly.

More preferably, the drive unit and/or the drive can be moved on two or more rails. As a result, the drive unit and/or the drive can be moved in a particularly flexible manner.

In a particularly preferred manner, the drive unit and/or the drive is designed to be movable via three rails arranged orthogonally to one another. This allows process-reliable movement using conventional machine coordinate systems.

In the sense of the invention, a drive position is an arrangement of the drive for the media guide, which causes the media guide to be driven directly and/or indirectly by the drive. Direct driving can take place through direct contact between the drive and the media guide. Direct driving can take place through the interposition of drive-transmitting elements, for example through the use of gears, rollers, etc.

In the sense of the invention, a free-running position is a positioning of the drive for the media guide, with which neither an indirect nor a direct driving of the media guide by the drive is effected.

The cassette unit has at least one drive cassette. According to the invention, the drive cassette is designed by means of a cassette guide for guiding the media guide. In other words, restricts the Cassette guide the possible translatory and / or rotary directions of movement of the media guide. The cassette guide preferably limits the directions of movement to, in particular precisely, a translatory direction of movement. The cassette guide particularly preferably specifies a movement along a processing axis of the set-up system by restricting the directions of movement. As a result, the media guide can be unrolled and/or rolled up only along the processing axis, which has a further advantageous effect on the process reliability and the ability to be automated.

In a preferred embodiment it is provided that the cassette guide has a drivable roller guide. In this case, the drive can be configured to be movable with the drivable roller guide for indirectly driving the media guide from the free-running position into a drive position. This can ensure a particularly secure connection of the drive.

The drivable roller guide has at least one roller. The drivable roller guide preferably has two or more rollers. The drivable roller guide can be in positive and/or non-positive contact with the media guide. A form-fitting contact can be achieved, for example, by a toothed engagement of a roller in the media guide. A non-positive fit can be achieved, for example, by means of a friction pairing between a roller and the media guide. The roller guide can thus be adapted particularly flexibly to the media guide.

At least one roller is particularly preferably designed as a drive roller and/or at least one roller as a support roller. The drive roller and the support roller in this case preferably abut opposite sides of the media guide. The support roller is designed to run freely while the drive roller for drive transmission from the drive to the Media management is formed. As a result, the media guide can be guided with particularly little friction and, in addition, an effective connection option for the drive can be provided.

An embodiment of the set-up system in which the drive has a friction wheel is preferred. The friction wheel is preferably arranged or attached directly to the drive and follows the movement of the drive. In other words, the friction wheel for rolling up and/or unrolling the media guide is designed to be movable into a drive position with the media guide and/or the drivable roller guide. As a result, an even more effective drive transmission to the media guide can take place.

Also preferred is an embodiment of the setup system in which the cassette guide has a guide bush. The guide bush is part of the cassette guide and is preferably located downstream of the drivable roller guide on a processing axis in the direction of a pipe to be processed. As a result, guidance by the drive cassette can be further improved.

The guide bushing can be designed to accommodate a guide rod arranged on the media guide. The guide bushing preferably has a through-hole for this purpose. More preferably, the guide bushing forms a guide stop for the guide rod within the through-hole in a direction of movement, in particular in a direction of roll-up movement, of the media guide. As a result, an end position of the media guide or a starting position for the media guide can be provided with particularly simple and inexpensive means.

Alternatively or additionally, it can be provided that the position of the media guide and/or the guide rod is inside the guide bush is determined by a proximity switch, in particular in the form of a non-contact limit switch. As a result, the end position or the starting position of the media guide can be readjusted in a particularly simple manner. The proximity switch is preferably arranged in a wall recess of the guide bush. In this case, the media guide also preferably has a marking. A marking can be in the form of a depression and/or elevation, for example. As a result, the signal from the proximity switch can be monitored with regard to a recurring pattern in the proximity detection, as a result of which the position of the media guide can be detected by the proximity switch in a particularly reliable manner.

More preferably, the guide bushing is designed in multiple parts, in particular in two parts. As a result, the accessibility to the interior of the guide bush when arranging the media guide and the ease of maintenance can be improved.

In a further preferred embodiment of the set-up system, the cassette unit has a cassette holder. In this case, the cassette holder can be designed as a carrier for the drive cassettes. The cassette holder is preferably designed for the detachable arrangement of the at least one, in particular each, drive cassette. A detachable arrangement means that the drive cassettes located on the cassette holder can be exchanged in a particularly simple manner.

A further development of the set-up system is preferred, in which the drive cassettes arranged detachably on the cassette holder are secured by means of a lock. As a result, the release of the drive cassettes can be reliably prevented at certain points in time. More preferably, the lock is designed as a pneumatic lock. As a result, the locking can be controlled automatically by a pneumatic system in a particularly process-reliable manner. Preferably, the pneumatic locking system a pneumatic locking cylinder. The locking can be controlled in a particularly robust and responsive manner.

In a particular development of the setup system, it is provided that the drive unit has a cassette coupling for mechanically coupling the at least one drive cassette. A clutch can be designed, for example, in the form of a gripper. The drive cassette preferably has a receiving section, in particular a receiving lug, which is designed contrary to the cassette coupling. As a result, the drive unit can be coupled to the drive cassette particularly quickly and reliably. The drive unit can be attached to the drive cassette temporarily and/or permanently by means of the cassette coupling. This is particularly advantageous when the drive cassette is detached from the cassette holder in this case. As a result, the drive cassette can be moved with the drive unit, in particular along the processing axis. In the case of an internal treatment to be carried out on a short pipe, the drive cassette can therefore be brought up to the end of the pipe by the drive unit, as a result of which the media guide can be introduced in a targeted manner in a particularly reliable manner.

A preferred embodiment of the set-up system provides that the cassette unit has at least one additional drive cassette. The additional drive cassette can be designed identically to the at least one drive cassette. As a result, the manufacturing costs for the drive cassettes can be reduced. Alternatively, the further drive cassette, in particular the cassette guide, can differ from the design of the at least one drive cassette. This is advantageous with regard to an adjustment of the additional drive cassette to an additional media guide to be guided. The drive is preferably designed to drive the additional media guide of the additional drive cassette. In this case, the drive is from one, in particular the same, freewheel position to a drive position with the other Media guide designed to be movable. As a result, the same drive can be used particularly favorably to drive multiple media guides.

A further development of the set-up system is preferred, in which the at least one further drive cassette is arranged parallel to the at least one drive cassette. The drive cassettes are preferably arranged transversely, in particular orthogonally, to a machining axis. As a result, the drive cassettes can be arranged at the same distance from the pipe to be treated, which is favorable for the process.

All drive cassettes are preferably detachably arranged on the cassette holder. More preferably, each drive cassette can be secured to the cassette holder by means of a separate lock. This allows access to the individual drive cassettes to be particularly flexible.

In a preferred embodiment of the setup system, the media guide is designed in the form of a drag chain and/or a hose and has at least one, in particular at least two, particularly preferably at least three, media lines. The at least one, in particular each, media line is preferably routed within the media guide. As a result, the media lines routed within the media guide can be effectively protected against external influences, mechanical stress and/or damage.

More preferably, the media lines are guided, in particular completely, within the media guide from the drum to the tool. As a result, damage can be prevented even more effectively.

A media line is used here and below, for example, for a release agent line, a compressed air line and/or an electrical line understood, the media being present accordingly in the form of release agents, compressed air and/or electricity.

The object is also achieved by a device for the internal treatment of a pipe with a setup system as described above and a pipe holder for receiving a pipe to be treated, the setup system for winding and/or unrolling the media guide and for inserting the media guide or the tool into the treated tube is formed.

The device for treating the inside of a pipe preferably has a uniform machine platform on which the set-up system and/or the pipe holder are attached in a mutually aligned manner. In this way, a particularly precise and rapid treatment of the pipe can be guaranteed.

More preferably, the device for treating the inside of a pipe is designed to be arranged on a pipe processing machine. Alternatively, it can be provided that the device for treating the inside of a tube is designed on the tube processing machine. As a result, the internal treatment of the tube can be carried out particularly favorably in a procedural step immediately preceding the tube processing.

In a particularly preferred development of the device, it is provided that the drive unit is arranged on a measuring carriage of the pipe processing machine. As a result, the set-up system can be manufactured particularly cost-effectively and integrated into the pipe processing machine in a process-reliable manner.

Further advantages of the invention result from the description and the drawing. Likewise, according to the invention, the features mentioned above and those detailed below can each be used individually or collectively in any desired expedient combination. The embodiments shown and described are not intended to be exhaustive Enumeration to understand, but rather have exemplary character for the description of the invention.

Detailed description of the invention and drawings

1 shows a device for treating the inside of a pipe, having a pipe holder and a set-up system with a drum unit, a drive unit, two cassette units and a media guide in a side view.

FIG. 2 shows the set-up system from FIG. 1 in a perspective view.

Fig. 3 shows the drive unit and the cassette unit of Figs. 1 and 2 in a coupled arrangement of the drive unit with one of two drive cassettes.

Figure 4 shows the drive unit and cassette unit of Figure 3 in an uncoupled position.

Fig. 5 shows the drive unit and the cassette unit of Figs. 3 and 4 in a coupled arrangement of the drive unit with the other drive cassette.

Fig. 6 shows the drive unit and the cassette unit of Figs. 3 to 5 in a view of a rear side of the arrangement.

1 shows a section of a device 10 for treating the inside of a pipe 12. The device 10 has a set-up system 14 and a pipe holder (not shown) for holding the pipe 12 to be treated. The pipe holder is designed for aligning or positioning the pipe 12 to be treated, so that a central pipe axis 16 essentially runs on a processing axis 18 of the set-up system 14 . The set-up system 14 can have several processing axes 18 . In this case, the pipe holder aligns the central pipe axis 16 essentially concentrically with one of the machining axes 18 . In this case, the machining axis 18 is preferably specified. An essentially concentric orientation is to be understood as meaning an orientation in which the internal treatment in the pipe 12 can be carried out by the set-up system 14 . A slight offset between the pipe center axis 16 and the processing axis 18 can be compensated, for example, by the set-up system 14.

The device 10 has a machine frame 20 set up on a machine foundation (not shown) and/or fastened to the machine foundation. The machine frame 20 preferably forms a uniform machine platform for arranging the set-up system 14 and the pipe holder. In other words, the individual components to be arranged on the machine frame 20 can be aligned with one another in relation to the uniform machine platform. As a result, the device 10 can be equipped and dismantled in a particularly simple manner while maintaining the smallest possible tolerances.

The setup system 14 has a drum unit 22, a drive unit 24, a cartridge unit 26 and a media guide 28.

The drum unit 22 has a support structure 30 which is fixed to the machine frame 20 by means of a screw connection. The support structure 30 is designed here for arranging the individual components of the drum unit 22 . As a result, the drum unit 22 can be manufactured particularly advantageously in a modular manner and can be arranged on the device 10 particularly quickly and easily.

In the embodiment of the device 10 shown, the cassette unit 26 is fastened to the machine frame 20 by means of a retaining flange 32 . This represents a particularly robust and simple type of arrangement on the machine frame 20. Provision can also be made for the cassette unit 26 to be pivotably attached to the machine frame 20. As a result, the cassette unit 26 can be pivoted horizontally out of the processing axis 18 . This favors the accessibility of areas of the device 10 that are blocked by the cassette unit 26, for example in the case of cleaning and/or maintenance work. Further advantageously, by pivoting the cassette unit 26 without dismantling the device 10 more space for Are made available, as is required for example in pipes 12 with excess length. A manual treatment of the inside of the pipe 12, for example by manually inserting the media guide 28, can therefore still take place.

In the embodiment shown, the drive unit 24 is movably arranged on the device 10 by means of a carriage 36 guided on a rail 34 of the device 10 . In the embodiment shown, the rail 34 for guiding the carriage 36 is designed parallel to the central axis 16 of the pipe or the processing axis 18 . In other words, the carriage 36 can only be moved parallel to the machining axis 18 .

The media guide 28 is arranged on a drum 38 of the drum unit 22 with the exception of an end portion 40 at least predominantly rolled up. The end section 40 is arranged on a drive cassette 42 of the cassette unit 26 . Consequently, the end section 40 has a length which corresponds to a distance between the drum unit 22 or the drum 38 and the cassette unit 26 or the drive cassette 42.

The media guide 28 has a tool 44 for treating the inside of the pipe 12 on an end facing the pipe 12 . Tool 44 has, for example, a centering means 46 for centering tool 44 within pipe 12, a nozzle for dispensing a fluid, in particular a separating agent and/or compressed air, a probe, in particular for scanning the inner wall of the pipe, and/or a thermal unit, in particular for Temperature control of the pipe inner wall.

The basic sequence of a method for the internal treatment of the pipe 12 by the device 10 is to be briefly described below. According to FIG. 1, the device 10 is in a starting position with the media guide 28 rolled up on the drum unit 22. First, the tube 12 is aligned in the tube receptacle (not shown) in such a way that the tube center axis 16 is concentric with the processing axis 18 is. The media guide 28 is then unwound from the drum unit 22 by driving the drive unit 24 . While the media guide 28 is unrolling, the media guide 28 is guided into the tube 12 by the cassette unit 26 up to an end (not shown) of the tube 12 remote from the set-up system 14 . The internal treatment of the pipe 12 by the tool 44 then preferably begins, in the present case a medium—for example compressed air, separating agent, electricity—being conveyed to the tool 44 by means of the media guide 28 . The media guide 28 is rolled onto the drum unit 22 by the drive unit 24 at the same time or with a time delay. The internal treatment of the tube 12 and/or the rolling up of the media guide 28 may be temporarily suspended and resumed. In this way, the intensity of the internal treatment and/or the type of internal treatment can be changed depending on the position of the tool 44 in the pipe 12 . The internal treatment of the tube 12 preferably ends when the tool 44 reaches a tube end 48 facing the device 10 .

The device 10 for treating the inside of a pipe 12 can be designed in particular for arrangement on and/or as part of a pipe processing machine (not shown). Such a tube processing machine can be a tube cutting machine, for example, in particular a milling machine and/or a laser cutting machine. Advantageously, the device 10 is upstream of a pipe processing machine. This enables the internal treatment of the tube 12, in particular the wetting of the inner wall of the tube with a separating agent immediately before the tube is processed by the tube processing machine. As a result, the tube can be processed particularly quickly and inexpensively.

FIG. 2 shows the set-up system 14 of the device 10 from FIG. 1 in a representation detached from the device 10 without the support structure 30 of the drum unit 22 (see FIG. 1). The drum unit 22 has two parallel and concentrically arranged drums 38 . Each of the drums 38 is configured for arranging a media guide 28 to be rolled up and unrolled. In the embodiment shown, the media guide 28 is arranged on only one drum 38 .

To guide the media guides 28, the drum unit 22 has a drum-side roller guide 50 with two rotatable rollers. The drum-side roller guide 50 is designed to guide the media guide 28 along the processing axis 18 and prevents movement of the media guide 28 transversely to the processing axis 18.

The drum unit 22 has two restoring devices 52 which, in order to support the drive unit 24 while the respective media guide 28 is being rolled up, form a restoring torque 54 on the respective drum 38 . The restoring devices 52 each have a force element 56, here in the form of a pneumatic cylinder, and a converter element 58 (or a force transmission device), here in the form of a cable pull.

Each pneumatic cylinder can be connected to a controllable pneumatic system (not shown) via compressed air connections 60, 62. By applying pressure to the compressed air connections 60, 62 accordingly, a piston (not visible) guided inside the pneumatic cylinder can be deflected with a piston rod 64 guided on the piston.

If there is a positive pressure difference between one of the compressed air connections 60 and the corresponding compressed air connection 62 of the same pneumatic cylinder, the piston rod 64 is deflected upwards in a vertical direction. The pneumatic cylinder or the power element 56 are expanded. In an analogous manner, the force element 56 is contracted, or the piston rod 64 is moved in a vertical direction downwards, if one there is a negative pressure drop between the pressure port 60 and the pressure port 62 of the same pneumatic cylinder.

Preferably, the reset device 52 applies a reset torque 54 to the drum 38 only while the media guide 28 is being rolled onto the drum 38 . On the other hand, while the media guide 28 is rolling, it can be provided that the restoring device 52 is in a freewheel state. In other words, although the return device 52 is arranged on the drum 38, no significant torque is transmitted to the drum 38 which counteracts the rolling movement. According to the embodiment shown, this can be done by applying pressure to the pressure connections 60, 62 while the media guide 28 is rolling. In this way, the drive unit 24 can advantageously be designed essentially with regard to overcoming the frictional forces occurring on the media guide 28 . This has a particularly advantageous effect on the manufacturing and operating costs.

According to the embodiment shown, the media guide 28 is designed as a drag chain. Alternatively, it can be provided that the media guide 28 is designed as a hose. The media guide 28 is designed to guide at least one media line (not shown). The media guide 28 has better guiding properties and greater mechanical robustness than the at least one media line. This enables the media guide 28 to be introduced into the pipe 12 to be treated in a particularly reliable manner (see FIG. 1). In addition, the media line can be effectively protected against external influences, mechanical stress and/or damage by means of the media guide 28 . The at least one media line is preferably arranged inside the media guide 28 . The media guide 28 particularly preferably completely encloses the at least one media line. As a result, the media guide 28 can be protected particularly effectively. The media guide 28 can advantageously guide two or more media lines. As a result, the media guide 28 can be used even more effectively without any significant additional design effort.

The media lines can be loosely arranged within the media guide 28 . Media lines can be, for example, separating agent lines, compressed air lines and/or electrical lines. The media line is guided to the tool 44 within the media guide 28 . In the case of a tool 44 for dispensing release agent, the media line is designed as a release agent line and ends in one or more nozzles of tool 44.

FIG. 3 shows the drive unit 24 and the cassette unit 26 from FIGS. 1 and 2 in a representation detached from the set-up system 14 (see FIGS. 1 and 2).

The cassette unit 26 has two drive cassettes 42 which are arranged parallel to one another. The drive cassettes 42 are of identical design according to the illustrated embodiment. A media guide 28 is disposed on each drive cartridge 42 . Each media guide 28 is mounted on a drum 38 (see Figs. 1 and 2) at one end and has a tool 44 at the other end suitable for internal treatment of pipes 12 (see Fig. 1) having different internal pipe diameters.

The drive cassettes 42 each have a cassette guide 66 which is designed to guide the respective media guide 28 . In the case shown, each cassette guide 66 has a drivable roller guide 68 and a guide bushing 70 .

The drivable roller guide 68 can be designed to guide the media guide 28 in a positive and/or non-positive manner. In the present case, the drivable roller guide 68 is designed for form-fitting guidance by means of a support roller 72 and a drive roller 74 . The drive roller 74 is designed as a friction wheel and has a rubber-elastic Friction lining to improve the non-positive connection with the media guide 28. By driving the drive roller 74 , the media guide 28 is set in motion, or unwound from the drum 38 or wound onto the drum 38 .

The support roller 72 and the drive roller 74 are arranged opposite one another in a vertical direction on the media guide 28 (for reasons of clarity, reference is made in the drawing only to the configuration of the roller guide 68 on a drive cassette 42 as an example). The support roller 72 surrounds the media guide 28 and has a running surface adapted to the media guide 28 . This allows the media guide 28 to be supported in a vertical downward direction as well as in both lateral directions. In a vertically upward direction, media guide 28 is supported by abutment of drive roller 74 . In other words, it is only possible to insert the media guide 28 in the processing direction 18 or by temporarily dismantling the support roller 72 or the drive roller 74 . This can reliably prevent the media guide 28 from jumping out of the cassette guide 66 .

The guide bushing 70 is arranged in an extension of the drivable roller guide 68 and forms an end position of the media guide 28 . For this purpose, the guide bushing 70 can form an end stop, which prevents the media guide 28 from rolling up further onto the drum 38 . In other words, the end stop can form the starting position of the media guide 28 . In this case, the end stop preferably has a limit switch, which switches an electrical contact when the media guide 28 rests against the end stop.

Alternatively and/or additionally, the drive cassettes 42 of the cassette unit 26--as shown in FIG. The proximity switch 76 is preferably in a wall recess 78 of the guide bushing 70 arranged (for reasons of clarity, only a proximity switch 76 and two wall recesses 78 of a single drive cassette 42 are provided with corresponding reference numbers). The media guide 28 preferably has a marking (not visible) for the secure detection of the position of the media guide 28 by the proximity switch 76 . The position of the media guide 28 in the starting position can be readjusted in a particularly process-reliable manner and/or adjusted to changes in the tool 44 and/or the media guide 28 by means of the design described above.

The guide bushing 70 can be designed in several parts, in particular in two parts, in order to ensure accessibility to the interior of the guide bushing 70 .

According to the embodiment shown, the guide bushing 70 is designed to accommodate a guide rod 80 of the media guide 28 . The position detection by the proximity switch 76 can be determined particularly reliably by means of the guide rod 80 . The guide rod 80 has a cross section that is designed to be contrary to the rectangular cross section of the guide bushing 70 . As a result, the starting position can be reliably formed with regard to a rotational position about the machining axis. In an alternative embodiment, the guide bushing can have a circular or elliptical cross section. This can be advantageous in terms of manufacturing costs if a rotational position of the media guide 28 is of minor importance for the internal treatment of the tube 12 (see FIG. 1). This can be the case, for example, when wetting an inner wall of the tube 12 by means of a separating agent using a rotationally symmetrical tool 44 .

The guide rod 80 is arranged or attached to the media guide 28 and is designed to accommodate the tool 44 . The guide rod 80 is preferably designed to accommodate various tools 44 by means of a quick-release fastener. According to the invention, the drive unit 24 is in a drive position with the media guide 28. According to the embodiment shown, a friction wheel 82 of the drive unit 24 is in non-positive contact with the drive roller 74 of one of the drive cassettes 42 of the cassette unit 26. By driving the friction wheel 82 by a drive 84--here in the form of an electric motor--the media guide 28 is moved indirectly, or unrolled from the drum 38 and/or rolled up onto the drum 38. According to the embodiment, the friction wheel 82 has a friction lining, in particular a rubber-elastic one.

According to the invention, the drive unit 24 can be moved from a freewheeling position into the drive position. According to the embodiment shown, the friction wheel 82 and the drive 84 can be moved together by means of two adjustment rails 86 into non-positive contact with the cassette unit 26 or the drive roller 74 (an adjustment rail 86 is shown hidden with a dashed line). The adjustment rails 86 are preferably arranged in an orthogonal plane of the processing axes 18 . More preferably, the adjustment rails 86 are arranged orthogonally to one another. The adjustment rails 86 are particularly preferably designed as a vertically aligned vertical adjustment rail and a horizontally aligned horizontal adjustment rail. As a result, the drive 84 and the friction wheel 82 can be moved out of and into the drive position in a particularly effective and process-reliable manner.

In the embodiment shown, the drive unit 24 can be arranged on the carriage 36 and can therefore be moved on the rail 34 of the device 10 on an axis parallel to the machining axis 18 (see FIG. 1). As a result, a corresponding adjustment rail 86 can be omitted. Alternatively or additionally, it can be provided that the drive unit 24 has a further adjustment rail 86 in a third spatial direction. The further adjustment rail 86 is preferably arranged orthogonally to the other two adjustment rails 86 or parallel to the processing axis 18 . Through this the drive unit 24 can be moved particularly flexibly depending on the design of the cassette unit 26 into the freewheeling position.

According to the embodiment, the drive unit 24 has a position sensor 88 for determining the position of the drive unit 24 in relation to the media guide 28 . The position sensor 88 is designed here as a non-contact limit switch and is designed to be arranged in the wall recess 78 of the guide bushing 70 . As a result, the drive position and/or the freewheel position of the drive unit 24 can be determined in a particularly reliable manner.

The drive unit 24 includes a cassette clutch 90 for mechanically coupling the drive cassettes 42 individually. According to the embodiment shown, the cassette coupling 90 has a parallel gripper 92 which can be moved along a coupling axis 96 by means of a coupling drive 94—here in the form of a pneumatic cylinder. The coupling axis 96 is preferably formed transversely, in particular orthogonally to the machining axis 18 in a plan view of the set-up system 14, or formed in the direction of arrangement of the drive cassettes 42. In the case of the illustration according to FIG. 3, the parallel gripper 92 is in engagement with a receiving tab 98 of one of the drive cassettes 42.

4 shows the cassette unit 26 and the drive unit 24 in a freewheeling position, or in an uncoupled arrangement. The individual steps for coupling the drive unit 24 to one of the drive cassettes 42 are described below to explain the functional principle.

Starting from a coupled arrangement according to the preceding FIG. 3, in which the drive unit 24 is coupled to one of the drive cassettes 42, the drive 84 and the friction wheel 82 are first moved from the drive position to a free-wheeling position by moving along one of the adjustment rails 86. At the same time, the position sensor 88 is lifted out of the wall recess 78 of the guide bushing 70 . The friction wheel 82 is then in no way driving contact with one of the drive rollers 74 of the drive cartridges 42 and the media guide 28, respectively.

The parallel gripper 92 then releases the coupling with the receiving tab 98 of the drive cassette 42 by moving the parallel gripper 92 along the coupling axis 96. For reasons of process reliability, the decoupling precedes the movement of the drive unit 24 into the freewheeling position. Alternatively, however, it is conceivable for the parallel gripper 92 and the receiving tab 98 to be uncoupled in advance of or at the same time as the movement into the free-wheeling position. As a result, the drive unit 24 is detached from the drive cassette 42 or the cassette unit 26 .

In the case of the embodiment shown, each drive cassette 42 has two centering elements 100--here in the form of a centering ball and a centering pin--(only one centering pin is visible in the illustration shown). The two centering elements 100 of each drive cassette 42 engage in oppositely designed centering recesses 102 of the drive unit 24 during coupling. In the case of the embodiment shown, this can be done by moving the carriage 36 (see Figure 1).

5 shows the drive unit 24 in a coupled arrangement with the cassette unit 26 or the other drive cassette 42. Starting from the position shown in FIG. Subsequently or at the same time, the drive unit 24 was moved—for example by means of the carriage 36 (see FIG. 1)—along the processing axis 18 in the direction of the cassette unit 26 .

Upon reaching the drive cartridge 42, the drive unit 24 by means

Intervention of the centering elements 100 (not visible, see Fig. 4) in the Centering recesses 102 are positionally aligned with drive cartridge 42 (only one centering recess 102 is visible in Figure 5; see Figure 4).

After reaching a position above the drive cassette 42, in which case the position sensor 88 can be used to determine this position, the parallel gripper 92 is moved along the coupling axis 96 into engagement with the receiving tab 98. The drive unit 24 is now in a coupled state with the drive cassette 42.

The drive unit 24 is then moved into a drive position with the media guide 28 by lowering the drive 84 and the friction wheel 82 along an adjustment rail 86 onto the drive roller 74 of the drive cassette 42 .

According to the embodiment shown, the cassette unit 26 also has a cassette holder 104 for the detachable arrangement of the drive cassettes 42 . As a result, the drive cassettes 42 can be exchanged particularly quickly and easily. According to the embodiment, the cassette holder 104 can have a pneumatic lock 106 which is designed for the automated release of the drive cassette 42 from the cassette holder 104 . As shown, the latch 106 is in the form of a bracket 110 pivotable about a pivot point 108 , the bracket 110 having a locking projection 112 . By means of a locking cylinder 114 - here a compressed air cylinder - the bracket 110 is pressed in the direction of the drive cassette 42 and thus the locking projection 112 into a locking recess (not visible) of the guide bushing 70 . To release the drive cassette 42, the locking cylinder 114 is contracted, as a result of which the bracket 110 is pivoted away from the drive cassette 42. The locking projection 112 is therefore not in engagement with the locking recess and the drive cassette 42 can be detached from the cassette holder 104 in the direction of the machining axis 18 . In an advantageous combination of the features described above, the drive cassette 42 coupled to the drive unit 24 can thus be moved by the drive unit 24 along the processing axis 18 by releasing the pneumatic lock 106 . In this way, the set-up system 14 (FIGS. 1 and 2) can be brought up to pipes 12 (FIG. 1) of different lengths in order to prevent the media guide 28 from sagging or the pipe 12 from missing if the distances between the set-up system 14 and the one to be treated are too great Tube 12 to avoid.

Fig. 5 shows the cassette unit 26 and the drive unit 24 from the previous figures in a rear view for a better explanation of the locking mechanism 106.

The cartridge unit 26 is secured to the mounting flange 32 by the cartridge holder 104 and the latch 106 . By expanding or contracting the locking cylinder 114, the yoke 110 can be pivoted relative to the cartridge holder 104 about the pivot point 108.

In the present case, each drive cassette 42 has a pneumatic lock 106 for detachable arrangement on the cassette holder 104 .

Taking all the figures of the drawing together, the invention relates to a set-up system 14 for a device 10 for treating the inside of a pipe 12, with a drive unit 24 rolling a media guide 28 guided via a drive cassette 42 off a drum 38 and inserting it into the pipe 12. Furthermore, the drive unit 24 is designed to roll up the media guide 28 onto the drum 38 . According to the invention, the drive unit 24 can be moved from a free-running position into a drive position in order to roll up and/or unroll the media guide 28 . The invention further relates to a device 10 for treating the inside of the pipe 12 with such a setup system 14. Reference character list

10 device;

12 tube;

14 set-up system;

16 tube central axis;

18 machining axis;

20 machine frames;

22 drum unit;

24 drive unit;

26 cassette unit;

28 media guide;

30 supporting structure of the drum unit 22;

32 holding flange of the cassette unit 26;

34 rail of device 10;

36 carriages;

38 drum of the drum unit 22;

40 end portion of media guide 28;

42 drive cassette of the cassette unit 26;

44 tool for internal treatment of the tube 12;

46 centering means of the tool 44;

48 tube end;

50 drum-side roller guide;

52 reset device;

54 restoring torque;

56 force element of the return device 52;

58 converter element of the restoring device 52;

60.62 compressed air connection;

64 piston rod;

66 cassette guide of the drive cassette 42;

68 drivable roller guide of the cassette guide 66;

70 cassette guide bushing;

72 supporting roller of the drivable roller guide 68;

74 drive roller of the drivable roller guide 68; drive cassette proximity switch 42;

Wall recess of the guide bush 70;

media guide guide bar 28;

friction wheel of the drive unit 24;

driving the drive unit 24;

adjustment rails of the drive unit 24;

position sensor;

cassette clutch of the drive unit 24;

Cassette clutch parallel gripper 90;

clutch drive of the cassette clutch 90;

coupling axle;

receiving tab of a drive cartridge 42;

centering element;

centering recess;

cassette holder of the cassette unit 26; pneumatic locking;

pivot point of pneumatic latch 106;

Pneumatic latch shackle 106;

locking projection of the pneumatic lock 106;

Locking cylinder of the pneumatic lock 106.

Claims

Set-up system (14) for a device (10) for treating the inside of a pipe (12), having at least one media guide (28), a drive unit (24), a cassette unit (26) and a drum unit (22) with at least one drum (38 ); wherein the media guide (28) can be arranged on the drum (38) such that it can be rolled up and/or unrolled and is designed at one end to accommodate a tool (44) for treating the inside of the pipe (12); wherein the drive unit (24) has a drive (84); wherein the cassette unit (26) has at least one drive cassette (42); the drive cartridge (42) being formed by a cartridge guide (66) for guiding the media guide (28); and wherein the drive (84) for winding and/or unwinding the media guide (28) can be moved from a freewheeling position to a driving position with the media guide (28). Set-up system according to claim 1, wherein the cassette guide (66) has a drivable roller guide (68); wherein the drivable roller guide (68) bears against the media guide (28) in a form-fitting and/or force-fitting manner; and wherein the drive (84) for indirectly driving the media guide (28) is movable from the idle position into a drive position with the drivable roller guide (68). Setup system (14) according to claim 2, wherein the drivable roller guide (68) has a drive roller (74) and a support roller (72); the drive roller (74) and the support roller (72) abutting opposite sides of the media guide (28); and wherein the drive roller (74) is adapted to transmit drive from the drive (84) to the media guide (28). Equipment system (14) according to any one of the preceding claims, wherein the drive (84) has a friction wheel (82); and wherein the friction wheel (82) for Rolling up and/or unrolling the media guide (28) into a drive position with the media guide (28) and/or the drivable

Roller guide (68) is designed to be movable. Set-up system (14) according to one of the preceding claims, wherein the cassette guide (66) has a guide bushing (70), the guide bushing (70) being designed to receive a guide rod (80) arranged on the media guide (28); and wherein the guide sleeve (70) forms a guide stop for the guide rod (80) in a direction of movement of the media guide (28). Equipment system (14) according to any one of the preceding claims, wherein the cassette unit (26) has a cassette holder (104); wherein the cassette holder (104) is designed for the detachable arrangement of the at least one, in particular each, drive cassette (42). Set-up system (14) according to claim 6, wherein the drive cassette (42) is detachably arranged on the cassette holder (104) by means of a pneumatic lock (106), in particular having a pneumatic locking cylinder (114). Set-up system (14) according to claim 6 or 7, wherein the drive unit (24) can be moved in the direction of movement of the media guide (28) relative to the cassette holder (104) and has a cassette coupling (90) for mechanically coupling the at least one drive cassette (42). . Equipment system (14) according to one of the preceding claims, having at least one further drive cassette (42); wherein the at least one further drive cassette (42) is formed by means of a further cassette guide (66) for guiding a further media guide (28); wherein the drive (84) for driving the media guide (28) is designed to be movable from a freewheeling position into a drive position with the further media guide (28). Set-up system (14) according to Claim 9, the at least one further drive cassette (42) being parallel to the at least one drive cassette (42); and wherein the drive (84) is movable from the idle position to a drive position with the media guide (28) of the at least one drive cartridge (42) or with the media guide (28) of the at least one other drive cartridge (42). Equipment system (14) according to one of the preceding claims, wherein the media guide (28) is designed in the form of a drag chain and/or a hose and has at least one, in particular at least two, particularly preferably at least three, media lines; wherein the at least one, in particular each, media line is routed within the media guide (28). Set-up system (14) according to claim 11, wherein the at least one media line is designed in the form of a separating agent line, a compressed air line and/or an electrical line. Device (10) for treating the inside of a pipe (12) having a set-up system (14) according to one of the preceding claims, and a pipe holder for receiving the pipe (12) to be treated, the set-up system (14) for rolling up and/or unrolling the Media guide (28) and for inserting the tool (44) into the tube to be treated (12) is formed.