WO1986001348A1 - Agencement de montage et d'ajustement du profil d'electrodes - Google Patents

Agencement de montage et d'ajustement du profil d'electrodes Download PDF

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Publication number
WO1986001348A1
WO1986001348A1 PCT/EP1985/000414 EP8500414W WO8601348A1 WO 1986001348 A1 WO1986001348 A1 WO 1986001348A1 EP 8500414 W EP8500414 W EP 8500414W WO 8601348 A1 WO8601348 A1 WO 8601348A1
Authority
WO
WIPO (PCT)
Prior art keywords
segments
electrode
control shaft
retaining part
friction
Prior art date
Application number
PCT/EP1985/000414
Other languages
German (de)
English (en)
Inventor
Richard Kiederle
Erich Adensamer
Original Assignee
Kr Gesellschaft Für Oberflächentechnik Mbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kr Gesellschaft Für Oberflächentechnik Mbh filed Critical Kr Gesellschaft Für Oberflächentechnik Mbh
Priority to DE8585904244T priority Critical patent/DE3563403D1/de
Priority to AT85904244T priority patent/ATE35195T1/de
Publication of WO1986001348A1 publication Critical patent/WO1986001348A1/fr
Priority to DK172386A priority patent/DK172386D0/da

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge

Definitions

  • the invention relates to a set-up device for adjusting the electrode contour in corona pre-treatment devices or the like, the rail-shaped electrode being formed from a series of movably mounted segments.
  • Such pretreatment devices are used for the surface treatment of films, containers or the like made of plastic, paper, wood, glass or metal.
  • corona treatment electrical discharges act on the surface of the material to be treated, which can then be better printed, glued, coated or otherwise treated.
  • a strong electric field is built up between an electrode and a roller or the like covered with a dielectric layer, over which the film or the body to be treated is passed.
  • the electrode In the case of corona treatment of plastic films, the electrode is constructed as a rail that extends across the film web.
  • the electrode When treating such foils and also other bodies, there is now the problem that only parts of the surface of the foil are to be treated and that the electrode must have an appropriate active contour for this purpose.
  • Another problem is the conversion of the pretreatment device to other films or a different position of the surface-treated areas on the film. To do this, the electrode must be converted with its active edge.
  • the invention solves this problem with a set-up device with the features in the characterizing part of the main claim.
  • the device according to the invention has the advantage that the pretreatment device no longer has to be switched off and opened during the conversion of the electrode.
  • the extruder and the film blowing device, as well as a downstream winding device do not need to be switched off.
  • the film can pass through the pre-treatment device and is only not treated.
  • a rusting device can also have several adjusting devices for one electrode, which further reduces the set-up time.
  • the rusting device according to the invention allows the individual segments to be positioned very securely, since the actuating device, by means of its retaining part, prevents the adjacent segments from being carried along by friction when positioning a segment.
  • the set-up device according to the invention is particularly suitable for rail-shaped electrodes for film treatment. It can of course also be used in pretreatment devices for cans, cups or other containers or the like. Likewise, it can also be used for any other rod-shaped or rail-shaped electrodes in other systems and devices.
  • the electrode segments are folded around a common axis.
  • the pivoting movement of the segments in the preferred embodiment has the advantage that it offers precisely defined positions for the rest and working position of the electrode segments.
  • the positioning of the segments is effected via a gearwheel / gear pairing between the actuating device and the segments. This has the advantage that the positioning movement of the individual segments is safe and precise trolling.
  • the actuating device remains in constant engagement with the segments even when passing over the row of segments.
  • this has the advantage that the row of segments is aligned in the target position when the actuator moves over it.
  • the retaining part detects and aligns the segments that are in the working position as well as the segments that are folded down in the rest position.
  • the constant engagement between segments and actuating device also has the advantage that the drive part of the actuating device does not have to perform idle strokes to position the segments. Overall, the set-up device according to the invention is thus distinguished by a high working speed.
  • the set-up device according to the invention is also very small and compact, which is achieved primarily by the prismatic control shaft. This is at the same time a guide for the adjusting device and a drive for the pinion or drive part of the adjusting device. This contributes to a compact design of the adjusting device, since the motor drives for the pinion movement and the lateral one
  • the movable stop plate also contributes to an acceleration of the set-up time and a simplification of the control effort.
  • the entire row of segments folds into a defined position, preferably the working position. From this position, the individual segments of the actuating device that are not required are returned to the rest position.
  • the multi-stage clamping cylinder in cooperation with the slide rails between the individual segments, ensures optimal friction conditions during the various segment movements and holds the segment row in place after the conversion. Due to the frictional engagement between the segments, however, it is still possible for individual segments to evade in special situations during operation, for example in the event of a possible film thickening.
  • the set-up device according to the invention can be controlled by hand.
  • the rusting device can also be provided with a freely programmable control.
  • FIG. 2 a side view of the pretreatment device with set-up device according to arrow A from FIG. 1.
  • FIG 3 shows a cross section through an actuating device with a friction drive.
  • FIG. 1 and 2 show a pretreatment device 1 for the surface treatment of plastic films or the like.
  • the film 27 is guided over several deflection rollers and over a treatment roller 25. In other embodiments, several such treatment rollers can also be provided.
  • the treatment roller is with covered with a dielectric layer and connected to a generator, not shown, which supplies high-frequency alternating current.
  • a strong electric field is established between the treatment roller 25 and one or more electrodes, each consisting of a row of electrode segments 3. In this field, electrical discharges act on the surface of the film 27 and prepare it for subsequent treatment.
  • the surface treatment of the film 27 should now not be carried out over the entire width, but only in partial areas.
  • the segments 3 are brought into a working position according to FIG. 1 at the corresponding locations, while the segments that are not required are folded down onto a stop plate 10 at the locations where no surface treatment is to take place. In this position, the folded segments 3 are not electrically effective.
  • the electrode segments 3 are arranged pivotably on a common axis 5.
  • the segments are spaced from each other by sliding disks 6 made of Teflon, which are also arranged on the axis 5.
  • the sliding disc provides electrical insulation of the segments and thereby prevents the current from possibly being misdirected. Mutual sticking of the segments by degradation products is also prevented.
  • This set-up device 2 contains an adjusting device 13, which in detail consists of one
  • the Stellvorrich device 13 is guided on a control shaft 15 with a prismatic, in particular square cross section, longitudinally displaceable.
  • the control shaft 15 is arranged at a distance above and parallel to the axis 5 of the electrode segments 3, so that the adjusting device can be moved parallel to the electrode.
  • the travel drive takes place via a chain drive 24 which runs parallel to the control shaft 15 and is driven by a stepper motor.
  • the adjusting device 13 is connected to the chain via an extension 23.
  • the actuating device can be moved relative to the row of segments via the chain drive and the stepper motor and positioned exactly behind each individual segment 3 in the manner shown in FIG.
  • a ball screw or the like can also be used instead of the chain drive.
  • Each of the segments 3 carries on its top a dental arch 4, the center of which lies in the middle of the axis 5.
  • the tooth arches 4 cooperate with the pinion 16 and locking lugs 20, 21 on the retaining part 17 of the adjusting device 13.
  • With a rotation of the pinion l ⁇ the respective segment 3 is then folded about the axis 5, while the locking lugs 20, 21 are in engagement with the dental arches 4 of the adjacent segments and hold them in place in the meantime.
  • the locking nose 21 keeps the in
  • the locking lugs 20, 21 are so wide that, as shown in FIG. 2, they are in engagement with several segments.
  • the width of the pinion 16 is preferably chosen so that it is in engagement with only one segment.
  • the pinion 16 must be able to rotate within the actuating device 13, the retaining part 17 having to stand still at the same time. This is achieved by a special design of the control shaft 15 and the actuating device 13. 2, the retaining part 17 is divided into two halves of equal size, between which the pinion 16 is arranged. The two halves of the retaining part 17 are connected to one another by screws.
  • the pinion 16 is rotatably guided directly on the prismatic control shaft 15, but longitudinally displaceable.
  • the control shaft 15 is connected to an actuator, not shown, so that rotation of the control shaft 15 causes rotation of the pinion 16.
  • the two halves of the retaining part 17 are each rotatably arranged on a sleeve 18.
  • the two sleeves 18 are then rotatably guided on the prismatic control shaft 15, but longitudinally displaceable.
  • a U-shaped guide bracket 22 which is open at the bottom is fastened (cf. his two legs on two vertical walls of the housing 14 of the set-up device 2 is guided positively but longitudinally.
  • the adjusting device 13 is always in engagement with a plurality of segments 3. This engagement remains on the side even when the adjusting device 13 is moved laterally Control shaft 15 received. This is used to align the driven segments 3 over the teeth of the pinion 16 and the locking lugs 20, 21 when the adjusting device 13 is moved. For this purpose, a certain backlash is provided and the teeth of the tooth arches 4, as well as the locking lugs 20, 21 and the teeth of the pinion 16 are chamfered on the side.
  • the segments 3 should assume defined, stable positions in the working and rest position. In the rest position, they rest on the stop plate 10 which is continuous along the axis 5 and are held there by their own weight. In the erected working position, they are clamped in accordance with the exemplary embodiment in FIG. 1 by a curved leaf spring 12 running along the axis 5. For this purpose, the segments 3 have a shoulder 26 on their underside which slides over the leaf spring 12 when the segments 3 are erected and is then pressed by the latter against a stationary stop.
  • Figure 2 shows a further embodiment.
  • the segments 3 are spaced apart from a fixed stop via a spring assembly 7.
  • a multi-stage clamping cylinder 8 is arranged, which presses with a suitably designed piston via the end bearing of the axis 5 onto the next segment 3.
  • the clamping cylinder 3 has three operating levels. Relieved he does not exert any pressure on the row of segments 3. In the semi-loaded state, it exerts a relatively low pressure on the outermost segment 3, which propagates from segment to segment to the spring assembly 7 and the fixed stop via the sliding disks 6.
  • the clamping pressure is relatively light here, so that the segments can be moved against each other.
  • the clamping cylinder 8 In the third operating position, the clamping cylinder 8 is fully loaded and exerts a full clamping pressure on the segment row, which holds the segments in their set position during the operation of the pretreatment device.
  • the segments can also avoid film thickening or the like.
  • the segments 3 can in principle be repositioned by the adjusting device 13 from any position during the changeover. However, for the fastest possible changeover, it is advisable to first bring all segments into a common position and from there fold over individual segments according to the desired electrode contour.
  • the oblique stop plate 10 is fastened to a driven shaft 11.
  • the shaft 11 is rotated via an actuating cylinder and a deflection gear and, via the stop plate 10, folds all of the segments 3 placed thereon into the upright working position.
  • the adjusting device 13 has moved into a zero position out of engagement with the segments 3 (cf. FIG. 2).
  • the control shaft 15 is correspondingly extended at one or both ends with respect to the outermost segments 3.
  • the clamping cylinder 8 When the folded segments 3 are erected by the shaft 11 and the stop plate 10, the clamping cylinder 8 is relieved and thus enables the segments to be rotated easily. Then the clamping cylinder 8 is half-loaded and the actuating device 13 is moved over the row of segments and positioned over the segments to be folded down into the rest position in accordance with the desired electrode contour.
  • the axis 5 is supported by one or more intermediate bearings 9, which are longitudinally displaceable relative to the housing.
  • the intermediate bearings 9 dodge and thus allow the clamping pressure to be propagated over the entire row of segments.
  • one or more stationary intermediate bearings are provided, in which the axis 5 is guided in a longitudinally displaceable manner.
  • the clamping cylinder 8 is fixed on the axis 5, and the axis 5 is in turn guided in the end bearing on the other side.
  • the clamping cylinder 8 is supported via the segments 3 at the nearest intermediate storage and pulls the axis 5 through the intermediate storage or storage.
  • the spring assembly which is supported on the axle 5 via a shoulder, is carried along and braced against the segments.
  • clamping rings with disc springs are provided on the axis, which press the segments when the axis is tightened and brace them against the nearest stationary intermediate bearing.
  • the floating mounting of the axis 5 allows the clamping pressure to be distributed evenly on the one hand and thermal expansion can be easily compensated for on the other.
  • the drives for the control shaft 15, the actuator 13, the eelle 11 and the clamping cylinder 8 are in an automatic Control interconnected and connected to a freely programmable computer. Recurring electrode contours can be saved in the computer or typed in by hand and the set-up device automatically sets the desired contour.
  • the rusting device 2 is accommodated in a compact housing 14 according to FIG. 1 and can be exchanged as a complete part.
  • the segments are positioned in a sliding movement instead of a folding movement. Instead of a dental arch, these segments are then equipped with a toothed rack and a straight guide. The segments can also be conveyed from the working position to the rest position and back in another way, for example by means of an actuating cylinder.
  • FIG. 3 shows a further variant of the adjusting device 13 in a schematic cross section analogous to FIG. 1.
  • the segments 3 are provided with a friction arch 31 instead of a dental arch and rotate in the manner described above about an axis 5 from a working position into a rest position (shown in dashed lines). These positions are defined by stops 10, one of which is pivotally supported and driven according to FIGS. 1 and 2 via an axis 11.
  • the segments 3 are positioned via a friction drive, the drive part 16 including a friction wheel 28 which is profiled on the circumference.
  • the friction wheel 28 has two of the same size and evenly over the Scope distributed cam parts 30, which correspond to the normal friction wheel contour. Flattenings 29 are arranged between the cam parts 30.
  • the friction wheel 28 is connected to the control shaft 15 in a rotationally locking manner and can be displaced in the longitudinal direction thereon analogously to the exemplary embodiments in FIGS. 1 and 2.
  • the retaining part 17 consists of two cam disks 32 profiled according to the friction wheel 28, which are arranged on both sides of the friction wheel 28 in a rotationally locking and longitudinally displaceable manner on the control shaft 15.
  • the cam disks 32 act on two clamping jaws 33 which are also arranged laterally from the friction wheel 28 and which relate are guided radially in a guide 35 on the friction arch 31 and are held in contact with the cam disk 32 by springs 34.
  • FIG. 3 shows the overrun position of the adjusting device 13, in which the drive part 16 and the retaining part 17 can be moved along the row of segments 3 without engagement with the latter.
  • the flat sheets 29 face the friction sheets 31.
  • the device for achieving the longitudinal movement of the adjusting device 13 is the same as in FIGS. 1 and 2.
  • the friction wheel 28 is rotated via the control shaft 15, as a result of which the cam part 30 comes into engagement with the friction arch 31 of the respective segment 3.
  • the path of the neck portion 30, which has a circular circumference is shown in dashed lines.
  • the friction wheel 28 can therefore also have more neck parts 30 and flats 29.
  • the arc length is such that it overlaps the connecting line between the axes 15 and 5 in both positions.
  • the friction wheel 28 can thus be brought into frictional engagement with the friction arch 31 by means of a predetermined rotary movement of the control shaft 15 and can position the segment 3 in both directions. After each rotational movement, the friction wheel 28 then comes out of engagement with the friction sheet 31.
  • the adjacent segments 3 are assigned to clamping jaws 33, which are pressed by the cam disk 32 when the control shaft 15 rotates against the friction arches 31 to be locked. Since this locking should take place at the same time as the positioning movement of the desired segment 3, the cam disk 32 has a similar filing as the friction wheel 28. However, the arc of the cam part 36 of the cam disk 32 is chosen somewhat larger in proportion, so that the clamping jaws 33 are pressed on before the friction wheel 28 with its cam part 30 comes into engagement with the friction sheet 31 to be positioned.
  • the clamping jaws 33 are again faced with the flattened portion on the cam disk 32, so that the clamping jaws 33, under the action of the springs 34, lift along the guide 35 from the friction sheets 31 again.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Transmission Devices (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

Agencement de montage pour ajuster le profil d'électrodes dans des appareils de traitement initial à effet de couronne de pellicules plastiques ou autres pellicules analogues. L'électrode allongée est formé à partir d'une série de segments (3) disposés de façon mobile, qui, selon le profil souhaité de l'électrode, sont amenés individuellement à une position de travail ou laissés en repos sur une plaque d'entreposage (10). Ce déplacement est exécuté mécaniquement par un dispositif de transport (13) qui se déplace longitudinalement sur un arbre de commande (15) et qui peut être entraîné par une propulsion à chaîne (24) le long de la série de segments. Le dispositif de transport (13) comprend une partie de retenue (17) non pivotable dans le boîtier (14) par rapport à l'arbre de distribution (15), mais susceptible d'être déplacé longitudinalement. Le dispositif de transport (13) comprend en outre une partie d'entraînement pivotable transportée par l'arbre de distribution (15) et ayant la forme d'un pignon (16) qui enclenche un secteur denté (4) formé sur la partie supérieure des segments. La partie de retenue (17) comprend deux tenons de serrage (20 et 21) . Afin d'ajuster le contour d'electrode voulu le dispositif de transport (13) est placé derrière le segment correspondant (13), et ce segment (3) est rabattu dans sa position de repos par un tour du pignon (16). les deux tenons de serrage (20 et 21) retiennent entretemps les segments voisins (3).
PCT/EP1985/000414 1984-08-17 1985-08-14 Agencement de montage et d'ajustement du profil d'electrodes WO1986001348A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8585904244T DE3563403D1 (en) 1984-08-17 1985-08-14 Mounting device for adjusting an electrode contour
AT85904244T ATE35195T1 (de) 1984-08-17 1985-08-14 Ruestvorrichtung zum einstellen einer elektrodenkontur.
DK172386A DK172386D0 (da) 1984-08-17 1986-04-16 Aggregat til indstilling af en elektrodekontur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3430210A DE3430210C1 (de) 1984-08-17 1984-08-17 Ruestvorrichtung zum Einstellen einer Elektrodenkontur
DEP3430210.7 1984-08-17

Publications (1)

Publication Number Publication Date
WO1986001348A1 true WO1986001348A1 (fr) 1986-02-27

Family

ID=6243223

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1985/000414 WO1986001348A1 (fr) 1984-08-17 1985-08-14 Agencement de montage et d'ajustement du profil d'electrodes

Country Status (5)

Country Link
EP (1) EP0191080B1 (fr)
JP (1) JPS62500086A (fr)
DE (2) DE3430210C1 (fr)
DK (1) DK172386D0 (fr)
WO (1) WO1986001348A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342068A1 (de) * 1993-07-14 1995-01-19 Peter Lisec Hohlprofilleiste und Verfahren zu deren Herstellung

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3729614A1 (de) * 1987-09-04 1989-03-16 Ahlbrandt Andreas Spruehelektrodenanordnung
DE3831964A1 (de) * 1987-12-08 1989-06-22 Klaus Kalwar Vorrichtung zur koronabehandlung von materialbahnen
DE19640778A1 (de) * 1996-10-02 1998-04-09 Ahlbrandt Andreas Vorrichtung zum Behandeln der Oberfläche von Gegenständen durch Sprühentladungen
DE19716371A1 (de) * 1997-04-18 1998-10-22 Ahlbrandt System Gmbh Koronabehandlungsanlage

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334227A (en) * 1964-03-24 1967-08-01 Scae Sa Flexible corona discharge electrode with means to vary the length of the emitting portion
US3397136A (en) * 1965-10-07 1968-08-13 Deerpark Machine Co Corona treating apparatus having an electrode with an adjustable width
DE3341784A1 (de) * 1982-11-19 1984-06-07 Ensign-Bickford Industries Inc., Simsbury, Conn. Koronaentladungsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3334227A (en) * 1964-03-24 1967-08-01 Scae Sa Flexible corona discharge electrode with means to vary the length of the emitting portion
US3397136A (en) * 1965-10-07 1968-08-13 Deerpark Machine Co Corona treating apparatus having an electrode with an adjustable width
DE3341784A1 (de) * 1982-11-19 1984-06-07 Ensign-Bickford Industries Inc., Simsbury, Conn. Koronaentladungsvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342068A1 (de) * 1993-07-14 1995-01-19 Peter Lisec Hohlprofilleiste und Verfahren zu deren Herstellung

Also Published As

Publication number Publication date
DK172386A (da) 1986-04-16
JPS62500086A (ja) 1987-01-16
EP0191080A1 (fr) 1986-08-20
DK172386D0 (da) 1986-04-16
DE3430210C1 (de) 1986-04-03
EP0191080B1 (fr) 1988-06-15
DE3563403D1 (en) 1988-07-21

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