EP0072779B1 - Device for applying adhesive tape to the edge of sheet material - Google Patents

Device for applying adhesive tape to the edge of sheet material Download PDF

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Publication number
EP0072779B1
EP0072779B1 EP82810339A EP82810339A EP0072779B1 EP 0072779 B1 EP0072779 B1 EP 0072779B1 EP 82810339 A EP82810339 A EP 82810339A EP 82810339 A EP82810339 A EP 82810339A EP 0072779 B1 EP0072779 B1 EP 0072779B1
Authority
EP
European Patent Office
Prior art keywords
roller
folding
pressure rollers
approximately
strip
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
EP82810339A
Other languages
German (de)
French (fr)
Other versions
EP0072779A2 (en
EP0072779A3 (en
Inventor
Helfried Hertel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
Ciba Geigy GmbH
Original Assignee
Ciba Geigy AG
Ciba Geigy GmbH
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 Ciba Geigy AG, Ciba Geigy GmbH filed Critical Ciba Geigy AG
Priority to AT82810339T priority Critical patent/ATE9216T1/en
Publication of EP0072779A2 publication Critical patent/EP0072779A2/en
Publication of EP0072779A3 publication Critical patent/EP0072779A3/en
Application granted granted Critical
Publication of EP0072779B1 publication Critical patent/EP0072779B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F5/00—Attaching together sheets, strips or webs; Reinforcing edges
    • B31F5/06—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape
    • B31F5/08—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape for reinforcing edges ; Applying a strip or tape to an edge, e.g. for decorating, for protecting
    • B31F5/085—Attaching together sheets, strips or webs; Reinforcing edges by adhesive tape for reinforcing edges ; Applying a strip or tape to an edge, e.g. for decorating, for protecting combined with folding the strip around the edge, or applying an already folded strip on
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/002—Hand-held or table apparatus
    • B65H35/0026—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape
    • B65H35/0033—Hand-held or table apparatus for delivering pressure-sensitive adhesive tape and affixing it to a surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/002—Web delivery apparatus, the web serving as support for articles, material or another web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/101—Prior to or during assembly with additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1008—Longitudinal bending
    • Y10T156/1011—Overedge bending or overedge folding
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1034—Overedge bending of lamina about edges of sheetlike base

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Adhesives in foils - especially tape form such as those B. are known under the brand names Araldit ® and Redux ® adhesive film (CIBA-GEIGY), not least because of their occupational hygiene advantages are becoming more and more widespread.
  • Araldit ® and Redux ® adhesive film CIBA-GEIGY
  • CIBA-GEIGY Redux ® adhesive film
  • the invention is based on the knowledge that the inadequate suitability of the previously known apparatuses with pre-folding channel and pressure rollers for the application of tough plastic adhesive tapes of low intrinsic rigidity and tensile strength to curved sheet metal edges is primarily due to the rigid mutual arrangement of pre-folding channel and pressure rollers. It was also recognized that it is also important whether and how the pressure rollers are driven. So work for. B. the known from the aforementioned US Patent 4155798 apparatus with free-running pressure rollers. With other devices, e.g. B. those for edging drawing sheets with adhesive tapes, the roles are rigidly coupled to a drive motor.
  • the invention is intended to remedy the shortcomings indicated and to provide a device of the type described in the preamble of claim 1, which is also suitable for applying adhesive strips of low intrinsic rigidity and tensile strength to spatially curved sheet metal edges.
  • the machine shown is built on a base plate 1 and comprises: a supply reel 2 for the adhesive / carrier tape 3K / 3T, a take-up reel 4 for the carrier tape 3T separated from the adhesive tape, several deflection rollers 5 to 8, a deflection and pre-folding roller 9, a funnel-like one Folding channel 10 and a pair of pressure rollers 11a / 11b.
  • a box is designated, which comprises a conventional drive consisting of an electric motor and transmission.
  • Each of the two rollers 11 and 11b is seated on an axle 12a or 12b, which is rotatably mounted in a housing 13 and is connected to the drive in the box 20 via flexible and torsionally elastic shafts 14a and 14b.
  • the axis 12b of the lower roller 11b is supported in a swivel arm 15 (dashed lines) with the swivel axis S1, to which a pressure spring (16) (dashed lines) acts from below just before the axis 12b emerges from the housing 13 and the roller 11b follows presses against the roller 11a above.
  • the pivot axis S1 is adjusted or adjustable such that the roller axes 12a and 12b run exactly parallel to one another when the sheet metal and adhesive tape run through.
  • axis is S1 can be moved in the direction of the arrows V + (for larger roller spacing) and V - (for smaller roller spacing) and fixed in the desired position.
  • the pressure force of the spring 16 can be regulated by means known per se (not shown).
  • the housing 13 is articulated as a whole on the base plate 1 or the bearing block 17 of the deflecting and folding roller 9 which is firmly connected to the latter.
  • the pivot axis S2 of this articulation runs parallel to the axes of rotation 12a or 12b of the transport and pressure rollers 11a and 11b and is also arranged such that it lies approximately in the plane of symmetry of the pre-folding channel 10 also fastened to the bearing block 17.
  • the middle or The neutral position N of the housing 13 and thus of the pair of transport and pressure rollers 11a / 11b is defined by two tension springs 18 and 19 acting in opposite directions. In this neutral position, the plane of symmetry of the pair of transport and pressure rollers coincides with that of the pre-folding channel.
  • the pivot axis S2 can be slightly before or after the exit 10b of the pre-folding channel 10, i. H. more distant or closer to the pair of rolls 11a / 11b and, in relation to the neutral position, in particular also to be arranged halfway between a plane E through the roll axes 12a and 12b and the exit 10b of the prefolding channel 10.
  • the housing 13 is slidably supported on the axis S1 against the force of a spring (not shown). It can therefore be displaced as a whole in the direction of the roller axes 12a, 12b against the force of this spring.
  • the forward movement (roller side) is limited by a stop.
  • This arrangement is indicated in Fig. 1 by a double arrow H13-HF13, the arrow direction HF13 symbolizing the force of the spring.
  • the spring itself and the stop are not shown for drawing reasons.
  • the displaceability of the housing 13 can of course also be realized by other known design means.
  • the deflection and pre-folding roller 9 and the pre-folding channel 10 are designed such that they fold the adhesive tape 3K in a V-shape around its longitudinal axis.
  • the roller 9 is flat V-shaped in profile.
  • the V angle is preferably about 155 ° to 165 °.
  • the V-profile of the roller 9 can also be replaced by a corresponding arc profile.
  • the effective continuous length A3 of the pre-folding channel 10 is preferably approximately 0.6 to 0.8 times the effective width of the pre-folding roller 9.
  • the deflecting and folding roller 9, like the housing 13, can be moved backwards from the front limit stop against the force of a spring.
  • this arrangement is again only symbolically indicated by a double arrow H9-HF9, HF9 symbolizing the force of the spring.
  • this arrangement can, for. B. be realized in that the roller 9 is mounted in a fork-like element, which in turn is mounted in a guide mounted on the base plate 1 or the bearing block 17 against the force of a spring.
  • the direction of advance of the deflecting and folding roller 9 does not necessarily have to run parallel to that of the housing 13.
  • the direction of displacement is preferably adjustable or at least adjustable.
  • the prefolding channel 10 is preferably attached to the bearing block 17 in an adjustable and adjustable manner. It is likewise (like the deflecting and pre-folding roller 9) essentially V-shaped in cross-section, but the V-angle decreases continuously from the strip inlet end 10a to the outlet end 10b, similar to a funnel. In the apex line (connecting line of all V-vertices) the cross-section is rounded off accordingly.
  • the V-angle is preferably approximately 90 to 100 ° at the inlet 10a and approximately 10 to 15 ° at the outlet 10b.
  • the rounding in the crown tangentially changes into the "V".
  • the radius of curvature of the rounding at the exit 10b is only a few millimeters, preferably approximately 3 mm.
  • the pre-folding channel 10 is also V-shaped, the opening angle ⁇ being approximately 70 ° C.
  • the effective width at the entrance 10a is approximately the same as the width of the roller 9.
  • the deflection rollers 6, 7 and 8 are used to return the carrier tape 3T to the take-up drum 4, which is coupled to the drive motor of the device mounted in the box 20 via a slip clutch and a chain drive located in the support arm 21.
  • the slip clutch can also be arranged in the box 20 or immediately in front of the take-up drum 4.
  • the device is ready for operation.
  • the sheet metal part B to be edged in a U-shape with the adhesive tape 3K is now with one of its Corners pushed over the tape guide and folding element 10 between the transport and pressure rollers 11a and 11b, the drive being switched on simultaneously or shortly before.
  • the transport and pressure rollers 11a and 11b pull the sheet B through with its edge and thereby press the adhesive tape 3K on.
  • the take-up spool 4 driven by the drive motor (box 20) via the slip clutch winds up the carrier tape 3K.
  • the slip clutch is set so that the trains in the carrier tape 3T and in the adhesive tape 3K are approximately the same size.
  • the device according to the invention can be installed in a fixed position and the bleaching part can be guided by hand or by means of a robot. Conversely, the bleaching part can also be held for the application process and the device can be guided along the edge by hand, by motor on a rail or by means of a robot.
  • the former variant is particularly suitable for smaller sheet metal parts, the latter for larger ones.
  • the distance AI between the pivot axis S2 of the housing 13 and a plane E defined by the axes 12a and 12b of the transport and pressure rollers 11a and 11b is decisive for the maximum permissible spatial curvature of the bleaching part B.
  • the smaller the radius of curvature of the smallest curvature of the sheet metal part the smaller the distance Al must be selected. It was found that, for example with a smallest possible sheet radius of curvature Rmin 20 mm, the distance AI S 7 mm must be selected.
  • sheet metal parts with a radius of curvature of 20 mm can just just be pulled flawlessly from the rollers 11a and 11b, that is to say without clamping through the exit V-gap 10b of the pre-folding channel 10.
  • the pair of rollers 11a / 11b assumes the position shown in FIG. 3.
  • the pair of rollers 11a / 11b is more or less deflected from its central or neutral position N.
  • the path differences on the transport and pressure rollers 11a and 11b are compensated for by the torsional elasticity of the drive shafts 14a and 14b.
  • the distance A2 between the deflecting and pre-folding roller 9 initiating the folding of the adhesive tape 3K and the outlet V cross section 10b of the pre-folding channel 10 is set or adjustable such that the folding increases substantially continuously over this distance (V angle continuously decreasing ) he follows. Too great a spacing would have the disadvantage that the folding initiated by the roller 9 would again be lost in front of the pre-folding duct 10 which continued the folding, or in extreme cases the tape 3K would get into the pre-folding duct 10 with the wrong pre-folding. In addition, an excessively large distance is also harmful because the adhesive tapes used are generally very plastic and therefore longer train distances must be avoided. If the distance A2 is too small, band distortion can occur.
  • Irregularities in the sheet metal edge contours are adapted to the pressure roller pair 11a, 11b or the housing 13 in that it can spring back to the rear (arrows H13-HF13, Fig. 1). The same applies to the deflection and pre-folding roller 9 (arrows H9-HF9, Fig 1).
  • the device according to the invention was tested with the adhesive tapes commercially available under the names of adhesive film DLS 615 and adhesive film XB 3615 from CIBA-GEIGY, Basel.
  • adhesive films are those based on one-component epoxy resin with sufficient shelf life at low temperatures (refrigerator), which harden quickly at approx. 120 ° C.
  • the films are designed so that they are sticky on one side at room temperature.
  • the 3K tapes are approx. 16 mm wide and approx. 0.30 to 0.35 mm thick.
  • the carrier strip 3T is made of paper and a little wider. When pulling off the supply roll 2, the carrier adheres to the stickier side of the film, and the adhesive tape 3K, after being pulled off the carrier tape 3T, is folded with the sticky side inward and glued onto the metal sheet 3 by the rolls 11a and 11b.
  • Adhesive tapes made of DLS 615 or XB are tough plastic and have practically no inherent rigidity and only a very low tensile strength.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Cartons (AREA)
  • Basic Packing Technique (AREA)
  • Adhesive Tape Dispensing Devices (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Package Closures (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)

Abstract

An adhesive web is to be pressed on to the edge of a shaped sheet metal part, so that the web portion on the metal part has a U-shaped cross-section. To this end, the adhesive web is first peeled off a carrier tape and is then folded with the aid of a deflecting and pre-folding roller having a profile whose cross-section is a wide V. The pre-folded web is then folded further continuously in a funnel-shaped pre-folding channel. The sheet metal part whose edge is to be covered is then introduced with that edge, within the reach of the pre-folding channel, into the folded bend of the adhesive web, and both the sheet metal part and the web thereon are conveyed together by a pair of feed and press-on rollers which press the adhesive web on the edge and sides of the sheet metal part.

Description

Die Erfindung betrifft eine Vorrichtung gemäss Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

In der blechverarbeitenden Industrie ist das Verkleben von Falznahtverbindungen mittels druck- oder wärmehärtbarer Klebstoffe weit verbreitet. So ist es z. B. in der Autoindustrie üblich, Falznähte an bestimmten Karosserieteilen, insbesondere Türen auf diese Weise abzudichten und damit der Korrosionsgefahr vorzubeugen.In the sheet metal processing industry, the gluing of seam seam connections by means of pressure or thermosetting adhesives is widespread. So it is z. B. common in the automotive industry to seal seams on certain body parts, especially doors in this way and thus prevent the risk of corrosion.

In der Autoindustrie und ähnlichen Industriezweigen werden zur Herstellung solcher geklebten Falznahtverbindungen üblicherweise Klebstoffe in flüssiger oder pastöser Form verwendet, welche in Form einer Raupe auf die zu verbindenden Blechteile appliziert werden. Diese Applikationsmethode des Klebstoffs ist in verschiedener Hinsicht unbefriedigend. Zum einen ist die damit erreichte Verteilung des Klebstoffs über die gesamte Falznaht nicht ausreichend gleichmässig, was zu Korrosionsproblemen führen kann, und zum anderen sind Klebstoffe in flüssiger oder pastöser Form aus arbeitshygienischen Aspekten immer problematisch.In the automotive industry and similar branches of industry, adhesives in liquid or pasty form are usually used to produce such glued seam seam connections, which are applied in the form of a bead to the sheet metal parts to be joined. This method of applying the adhesive is unsatisfactory in various ways. On the one hand, the distribution of the adhesive achieved with this is not sufficiently uniform over the entire seam, which can lead to corrosion problems, and on the other hand, adhesives in liquid or pasty form are always problematic from an occupational hygiene point of view.

Bei der Herstellung von Konservendosen ist es, wie z. B. die US-A 3 125 056 oder die FR-A 2 252147 bzw. die BE-A 444 014 zeigen, ebenfalls üblich, Falznähte zu verkleben bzw. mittels Klebstoff abzudichten. Der Klebstoff wird dabei auf die Bördelränder der miteinander zu verbindenden Teile des Dosenkörpers entweder in flüssiger oder pastöser Form durch Extrusion oder dergleichen oder aber auch in Form eines Streifens einer Klebefolie aufgebracht.In the manufacture of cans it is such. B. US-A 3 125 056 or FR-A 2 252147 or BE-A 444 014, also common to glue fold seams or to seal with adhesive. The adhesive is applied to the flanged edges of the parts of the can body to be connected to one another, either in liquid or pasty form by extrusion or the like, or else in the form of a strip of adhesive film.

Klebstoffe in Folien ― insbesondere Bandform, wie sie z. B. unter den Markennamen Araldit®- und Redux®-Klebfilm (CIBA-GEIGY) bekannt sind, finden nicht zuletzt aufgrund ihrer arbeitshygienischen Vorteile immer weitere Verbreitung. Zum Verkleben der Falznähte von z. B. Autokarosserieteilen wurden solche Klebefolien bisher jedoch nicht oder nur sehr beschränkt verwendet. Der Grund dafür liegt vor allem darin, dass Klebstoff-Folien zähplastisch sind und ihre sehr geringe Zugfestigkeit die maschinelle Applikation beträchtlich erschwert. Zusätzliche Komplikationen treten auf, wenn solche Klebstoff-Folienstreifen auf Karosserieteile appliziert werden müssen, deren Falznähte einen komplizierten, insbesondere räumlich gekrümmten Verlauf haben. Diese Schwierigkeiten sind besonders gross, wenn der Bördelrand beidseitig mit Klebstoff versehen werden soll, das heisst das Klebstoffband U-förmig um den Rand gelegt werden muss.Adhesives in foils - especially tape form, such as those B. are known under the brand names Araldit ® and Redux ® adhesive film (CIBA-GEIGY), not least because of their occupational hygiene advantages are becoming more and more widespread. For gluing the seams of z. B. Auto body parts such adhesive films have so far not been used or only to a very limited extent. The main reason for this is that adhesive films are tough plastic and their very low tensile strength makes machine application considerably more difficult. Additional complications arise when such adhesive film strips have to be applied to body parts, the seams of which have a complicated, in particular spatially curved, course. These difficulties are particularly great if the flanged edge is to be provided with adhesive on both sides, that is to say the adhesive tape has to be placed around the edge in a U-shape.

Die bislang bekanntgewordenen Vorrichtungen der im Oberbegriff des Anspruchs 1 beschriebenen Art sind nur dazu geeignet, relativ steife und zugsfeste Klebbänder (nicht Klebstoffbänder) zu verarbeiten. Dies gilt beispielsweise auch für den aus der US-Patentschrift 4, 155, 798 bekannten Apparat mit Vorfaltkanal und Anpressrollen.The previously known devices of the type described in the preamble of claim 1 are only suitable for processing relatively rigid and tensile adhesive tapes (not adhesive tapes). This also applies, for example, to the apparatus with a prefolding channel and pressure rollers known from US Pat. No. 4, 155, 798.

Die Erfindung beruht auf der Erkenntnis, dass die mangelnde Eignung der bislang bekannten Apparate mit Vorfaltkanal und Anpressrollen zur Applikation von zähplastischen Klebstoffbändern geringer Eigensteifigkeit und Zugfestigkeit auf gekrümmte Blechränder vor allem durch die starre gegenseitige Anordnung von Vorfaltkanal und Anpressrollen bedingt ist. Ausserdem wurde erkannt, dass es auch wesentlich ist, ob und wie die Anpressrollen angetrieben sind. So arbeiten z. B. die aus der bereits genannten US-Patentschrift 4155798 bekannten Apparate mit freilaufenden Anpressrollen. Bei anderen Geräten, z. B. solchen zum Einsäumen von Zeichenblättern mit Klebbändern, sind die Rollen starr mit einem Antriebsmotor gekoppelt.The invention is based on the knowledge that the inadequate suitability of the previously known apparatuses with pre-folding channel and pressure rollers for the application of tough plastic adhesive tapes of low intrinsic rigidity and tensile strength to curved sheet metal edges is primarily due to the rigid mutual arrangement of pre-folding channel and pressure rollers. It was also recognized that it is also important whether and how the pressure rollers are driven. So work for. B. the known from the aforementioned US Patent 4155798 apparatus with free-running pressure rollers. With other devices, e.g. B. those for edging drawing sheets with adhesive tapes, the roles are rigidly coupled to a drive motor.

Durch die Erfindung sollen die aufgezeigten Mängel beseitigt und eine Vorrichtung der im Oberbegriff des Anspruchs 1 beschriebenen Art geschaffen werden, die auch zur Applikation von Klebstoffbändern geringer Eigensteifigkeit und Zugfestigkeit auf räumlich gekrümmte Blechränder geeignet ist.The invention is intended to remedy the shortcomings indicated and to provide a device of the type described in the preamble of claim 1, which is also suitable for applying adhesive strips of low intrinsic rigidity and tensile strength to spatially curved sheet metal edges.

Es wurde gefunden, dass die gestellt Aufgabe durch Ausbildung der im Oberbegriff des Anspruchs 1 beschriebenen Vorrichtung gemäss Kennzeichen des Anspruchs 1 gelöst werden kann.It has been found that the object can be achieved by designing the device described in the preamble of claim 1 according to the characterizing part of claim 1.

Im folgenden wird die Erfindung anhand eines in den Figuren dargestellen Ausführungsbeispiels näher erläutert ; es zeigen :

  • Figur 1 eine perspektivische Gesamtdarstellung,
  • Figur eine Detailansicht in Richtung des Pfeiles II der Fig. 1,
  • Figur 3 dieselbe Detailansicht wie Fig. 2, jedoch in einer anderen Arbeitsstellung.
The invention is explained in more detail below on the basis of an exemplary embodiment shown in the figures; show it :
  • FIG. 1 shows an overall perspective view,
  • FIG. 1 shows a detailed view in the direction of arrow II in FIG. 1,
  • 3 shows the same detailed view as FIG. 2, but in a different working position.

Die dargestellte Maschine ist auf einer Grundplatte 1 aufgebaut und umfasst: eine Vorratspule 2 für das Klebstoff/Trägerband 3K/3T, eine Aufwickelspule 4 für das vom Klebstoffband getrennte Trägerband 3T, mehrere Umlenkrollen 5 bis 8, eine Umlenk- und Vorfaltrolle 9, einen trichterartigen Vorfaltkanal 10 sowie ein Anpressrollenpaar 11a/11b. Mit 20 ist ein Kasten bezeichnet, der einen aus Elektromotor und Getriebe bestehenden konventionellen Antrieb umfasst.The machine shown is built on a base plate 1 and comprises: a supply reel 2 for the adhesive / carrier tape 3K / 3T, a take-up reel 4 for the carrier tape 3T separated from the adhesive tape, several deflection rollers 5 to 8, a deflection and pre-folding roller 9, a funnel-like one Folding channel 10 and a pair of pressure rollers 11a / 11b. With 20 a box is designated, which comprises a conventional drive consisting of an electric motor and transmission.

Jede der beiden Rollen 11 und 11b sitzt auf je einer Achse 12a bzw. 12b, die in einem Gehäuse 13 drehbar gelagert und über flexible und torsionselastische Wellen 14a bzw. 14b an den im Kasten 20 befindlichen Antrieb angeschlossen ist. Die Achse 12b der unteren Rolle 11b ist in einem Schwenkarm 15 (strichliert) mit der Schwenkachse S1 gelagert, an den knapp vor dem Austritt der Achse 12b aus dem Gehäuse 13 von unten eine Druckfeder (16) (strichliert) angreift und die Rolle 11b nach oben gegen die Rolle 11a drückt. Die Schwenkachse S1 ist so justiert bzw. justierbar, dass bei durchlaufendem Blech und Klebstoffband die Rollenachsen 12a und 12b genau parallel zueinander verlaufen. Hierzu ist die Achse S1 in Richtung der Pfeile V + (für grösseren Rollenabstand) und V - (für kleineren Rollenabstand) verschiebbar und in der gewünschten Lage fixierbar. Die Druckkraft der Feder 16 ist durch an sich bekannte Mittel (nicht dargestellt) regulierbar.Each of the two rollers 11 and 11b is seated on an axle 12a or 12b, which is rotatably mounted in a housing 13 and is connected to the drive in the box 20 via flexible and torsionally elastic shafts 14a and 14b. The axis 12b of the lower roller 11b is supported in a swivel arm 15 (dashed lines) with the swivel axis S1, to which a pressure spring (16) (dashed lines) acts from below just before the axis 12b emerges from the housing 13 and the roller 11b follows presses against the roller 11a above. The pivot axis S1 is adjusted or adjustable such that the roller axes 12a and 12b run exactly parallel to one another when the sheet metal and adhesive tape run through. For this purpose, axis is S1 can be moved in the direction of the arrows V + (for larger roller spacing) and V - (for smaller roller spacing) and fixed in the desired position. The pressure force of the spring 16 can be regulated by means known per se (not shown).

Das Gehäuse 13 ist als Ganzes schwenkbar an der Grundplatte 1 bzw. dem mit dieser fest verbundenen Lagerblock 17 der Umlenk- und Vorfaltrolle 9 angelenkt. Die Schwenkachse S2 dieser Anlenkung verläuft parallel zu den Drehachsen 12a bzw. 12b der Transport- und Anpressrollen 11a und 11b und ist ausserdem so angeordnet, dass sie etwa in der Symmetrieebene des gleichfalls am Lagerblock 17 befestigten Vorfaltkanals 10 liegt. Die Mitte- ·bzw. Neutrallage N des Gehäuses 13 und damit des Transport- und Anpressrollenpaares 11a/11b ist durch zwei gegensinnig wirkende Zugfedern 18 und 19 definiert. In dieser Neutrallage fällt die Symmetrieebene des Transport- und Anpressrollenpaares mit derjenigen des Vorfaltkanals zusammen. Die Schwenkachse S2 kann etwas vor oder nach dem Ausgang 10b des Vorfaltkanals 10, d. h. entfernter oder näher zum Rollenpaar 11a/11b liegen und bezogen auf die Neutrallage insbesondere auch auf halbem Weg zwischen einer durch die Rollenachsen 12a und 12b gelagten Ebene E und dem Ausgang 10b des Vorfaltkanals 10 angeordnet sein.The housing 13 is articulated as a whole on the base plate 1 or the bearing block 17 of the deflecting and folding roller 9 which is firmly connected to the latter. The pivot axis S2 of this articulation runs parallel to the axes of rotation 12a or 12b of the transport and pressure rollers 11a and 11b and is also arranged such that it lies approximately in the plane of symmetry of the pre-folding channel 10 also fastened to the bearing block 17. The middle or The neutral position N of the housing 13 and thus of the pair of transport and pressure rollers 11a / 11b is defined by two tension springs 18 and 19 acting in opposite directions. In this neutral position, the plane of symmetry of the pair of transport and pressure rollers coincides with that of the pre-folding channel. The pivot axis S2 can be slightly before or after the exit 10b of the pre-folding channel 10, i. H. more distant or closer to the pair of rolls 11a / 11b and, in relation to the neutral position, in particular also to be arranged halfway between a plane E through the roll axes 12a and 12b and the exit 10b of the prefolding channel 10.

Das Gehäuse 13 ist gegen die Kraft einer Feder (nicht dargestellt) verschiebbar auf der Achse S1 gelagert. Es ist daher als Ganzes in Richtung der Rollenachsen 12a, 12b gegen die Kraft dieser Feder nach hinten verschiebbar. Der Verschiebung nach vorne (Rollenseite) ist durch einen Anschlag begrenzt. Diese Anordnung ist in Fig. 1 durch einen Doppelpfeil H13-HF13 angedeutet, wobei die Pfeilrichtung HF13 die Kraftwirkung der Feder symbolisiert. Die Feder selbst und der Anschlag sind aus zeichnerischen Gründen nicht dargestellt. Die Verschiebbarkeit des Gehäuses 13 kann selbstverständlich auch durch andere bekannte konstruktive Mittel realisiert sein.The housing 13 is slidably supported on the axis S1 against the force of a spring (not shown). It can therefore be displaced as a whole in the direction of the roller axes 12a, 12b against the force of this spring. The forward movement (roller side) is limited by a stop. This arrangement is indicated in Fig. 1 by a double arrow H13-HF13, the arrow direction HF13 symbolizing the force of the spring. The spring itself and the stop are not shown for drawing reasons. The displaceability of the housing 13 can of course also be realized by other known design means.

Die Umlenk- und Vorfaltrolle 9 und der Vorfaltkanal 10 sind so ausgebildet, dass sie das Klebstoffband 3K um seine Längsachse V-förmig falten. Hierzu ist die Rolle 9 im Profil flach V-förmig. Der V-Winkel beträgt vorzugsweise etwa 155° bis 165°. Das V-Profil der Rolle 9 kann auch durch ein entsprechendes Bogenprofil ersetzt werden. Die wirksame Duchlauflänge A3 des Vorfaltkanals 10 beträgt vorzugsweise das etwa 0,6 bis 0,8-fache der wirksamen Breite der Vorfaltrolle 9.The deflection and pre-folding roller 9 and the pre-folding channel 10 are designed such that they fold the adhesive tape 3K in a V-shape around its longitudinal axis. For this purpose, the roller 9 is flat V-shaped in profile. The V angle is preferably about 155 ° to 165 °. The V-profile of the roller 9 can also be replaced by a corresponding arc profile. The effective continuous length A3 of the pre-folding channel 10 is preferably approximately 0.6 to 0.8 times the effective width of the pre-folding roller 9.

Gemäss einer bevorzugten Ausführungsform ist die Umlenk- und Vorfaltrolle 9 ähnlich wie das Gehäuse 13 gegen die Kraft einer Feder von einem vorderen Begrenzungsanschlag nach hinten verschiebbar. Diese Anordnung ist aus zeichnerischen Gründen wiederum nur symbolisch durch einen Doppelpfeil H9-HF9 angedeutet, wobei HF9 die Kraftwirkung der Feder symbolisiert. Konstruktiv kann diese Anordnung z. B. dadurch realisiert sein, dass die Rolle 9 in einem gabelartigen Element gelagert ist, welches seinerseits in einer auf der Grundplatte 1 oder dem Lagerbock 17 montierten Führung gegen die Kraft einer Feder verschiebbar gelagert ist. Die Vorschieberichtung der Umlenk- und Vorfaltrolle 9 muss nicht unbedingt parallel zu derjenigen des Gehäuses 13 verlaufen. Sie muss nur im Prinzip im Winkel zwischen dem Einlauf und dem Auslauf des umgelenkten Klebstoffbandes 3K liegen und ein Ausweichen der Rolle 9 nach hinten (bezüglich der Rollen 11a, 11b) ermöglichen. Vorzugsweise ist die Verschieberichtung einstellbar oder zumindest justierbar.According to a preferred embodiment, the deflecting and folding roller 9, like the housing 13, can be moved backwards from the front limit stop against the force of a spring. For reasons of the drawing, this arrangement is again only symbolically indicated by a double arrow H9-HF9, HF9 symbolizing the force of the spring. Constructively, this arrangement can, for. B. be realized in that the roller 9 is mounted in a fork-like element, which in turn is mounted in a guide mounted on the base plate 1 or the bearing block 17 against the force of a spring. The direction of advance of the deflecting and folding roller 9 does not necessarily have to run parallel to that of the housing 13. In principle, it only has to lie at an angle between the inlet and the outlet of the deflected adhesive tape 3K and allow the roller 9 to move backwards (with respect to the rollers 11a, 11b). The direction of displacement is preferably adjustable or at least adjustable.

Der Vorfaltkanal 10 ist vorzugsweise einstell- und justierbar am Lagerbock 17 befestigt. Er ist gleichfalls (wie die Umlenk- und Vorfaltrolle 9) im Querschnitt im wesentlichen V-förmig, wobei jedoch der V-Winkel vom Bandeinlaufende 10a zum Auslanfende 10b ähnlich wie bei einem Trichter kontinuierlich abnimmt. In der Scheitellinie (Verbindungslinie aller V-Scheitelpunkte) ist der Querschnitt entsprechend abgerundet. Der V-Winkel beträgt vorzugsweise am Eingang 10a ca. 90 bis 100° und am Ausgang 10b ca. 10 bis 15°. Die Abrundung im Scheitel geht tangential in das « V » über. Der Krümmungsradius der Abrundung beträgt am Ausgang 10b nur wenige Millimeter, vorzugsweise ca. 3 mm. In der Aufsicht ist der Vorfaltkanal 10 gleichfalls V-förmig, wobei der Oeffnungswinkel α ca. 70 °C beträgt. Die wirksame Breite am Eingang 10a ist etwa gleich gross wie die Breite der Rolle 9.The prefolding channel 10 is preferably attached to the bearing block 17 in an adjustable and adjustable manner. It is likewise (like the deflecting and pre-folding roller 9) essentially V-shaped in cross-section, but the V-angle decreases continuously from the strip inlet end 10a to the outlet end 10b, similar to a funnel. In the apex line (connecting line of all V-vertices) the cross-section is rounded off accordingly. The V-angle is preferably approximately 90 to 100 ° at the inlet 10a and approximately 10 to 15 ° at the outlet 10b. The rounding in the crown tangentially changes into the "V". The radius of curvature of the rounding at the exit 10b is only a few millimeters, preferably approximately 3 mm. In the top view, the pre-folding channel 10 is also V-shaped, the opening angle α being approximately 70 ° C. The effective width at the entrance 10a is approximately the same as the width of the roller 9.

Die Umlenkrollen 6, 7 und 8 dienen zur Rückführung des Trägerbandes 3T auf die Aufwickeltrommel 4, welche über eine Rutschkupplung und einem im Tragarm 21 befindlichen Kettentrieb mit dem im Kasten 20 montierten Antriebsmotor des Gerätes gekuppelt ist. Die Rutschkupplung kann gleichfalls im kasten 20 angeordnet sein oder unmittelbar vor der Aufwickeltrommel 4.The deflection rollers 6, 7 and 8 are used to return the carrier tape 3T to the take-up drum 4, which is coupled to the drive motor of the device mounted in the box 20 via a slip clutch and a chain drive located in the support arm 21. The slip clutch can also be arranged in the box 20 or immediately in front of the take-up drum 4.

Das dargestellte Gerät wird wie folgt gehandhabt:

  • Beim Aufsetzen einer neuen Vorratsrolle 2 wird das Klebstoff-/Trägerband 3K/3T zunächst von Hand über die Umlenkrolle 5 bis Izu den Rollen 6 und 9 gezogen. Dort wird das Klebstoffband 3K vom Trägerband 3T gelöst und über die Umlenk- und Vorfaltrolle 9 und den Vorfaltkanal 10 zwischen die Transport und Andrückrollen 11a und 11b geführt. Gleichzeitig wird das Trägerband 3T über die Umlenkrollen 6, 7 und 8 auf die Aufwickelspule 4 geführt und dort so befestigt, dass es auf dieser aufgewickelt werden kann. Die verschieden langen Weglängen zwischen der Rolle 9 und dem Rollenpaar 11a/11b einerseits und der Rolle 6 und der Aufwickelspule 4 anderseits werden dabei dadurch ausgeglichen, dass das Kelbstoffband 3K entsprechend weit über das Rollenpaar 11a/11b hinaustransportiert wird, z. B. durch kurzzeitiges Einschalten des Antriebes dieser Rollen. Es kann aber auch ein Klebstoff/Trägerband 3K/3T mit einem entsprechend langen Trägerbandvorlauf verwendet werden.
The device shown is handled as follows:
  • When putting on a new supply roll 2, the adhesive / carrier tape 3K / 3T is first pulled by hand over the deflection roll 5 to I to the rolls 6 and 9. There, the adhesive tape 3K is detached from the carrier tape 3T and guided between the transport and pressure rollers 11a and 11b via the deflection and pre-folding roller 9 and the pre-folding channel 10. At the same time, the carrier tape 3T is guided over the deflection rollers 6, 7 and 8 onto the take-up spool 4 and fastened there so that it can be wound thereon. The different lengths of path between the roller 9 and the pair of rollers 11a / 11b on the one hand and the roller 6 and the take-up spool 4 on the other hand are compensated for by the fact that the Kelbstoffband 3K is transported far beyond the pair of rollers 11a / 11b, z. B. by briefly switching on the drive of these roles. However, a 3K / 3T adhesive / carrier tape with a correspondingly long carrier tape advance can also be used.

Wenn das Klebstoffband 3K sich mit seinem Anfang zwischen den Transport- und Anpressrollen 11a a und 11b befindet und das Trägerband 3T am Umfang der Aufwickelspule 4 befestigt ist, ist das Gerät betriebsbereit.If the adhesive tape 3K is at its beginning between the transport and pressure rollers 11a a and 11b and the carrier tape 3T is attached to the circumference of the take-up reel 4, the device is ready for operation.

Das am Rand mit dem Klebstoffband 3K U-förmig einzufassende Blechteil B wird nun mit einer seiner Ecken über das Bandführungs- und Faltenelement 10 zwischen die Transport- und Andrückrollen 11a und 11b geschoben, wobei der Antrieb gleichzeitig oder kurz zuvor eingeschaltet wird. Die Transport-und Anpressrollen 11a und 11b ziehen das Blech B mit seinem Rand durch und drücken dabei das Klebstoffband 3K auf. Gleichzeitig wickelt die vom Antriebsmotor (Kasten 20) über die Rutschkupplung angetriebene Aufwickelspule 4 das Trägerband 3K auf. Die Rutschkupplung ist so eingestellt, dass die Züge im Trägerband 3T und im Klebstoffband 3K etwa gleich gross sind.The sheet metal part B to be edged in a U-shape with the adhesive tape 3K is now with one of its Corners pushed over the tape guide and folding element 10 between the transport and pressure rollers 11a and 11b, the drive being switched on simultaneously or shortly before. The transport and pressure rollers 11a and 11b pull the sheet B through with its edge and thereby press the adhesive tape 3K on. At the same time, the take-up spool 4 driven by the drive motor (box 20) via the slip clutch winds up the carrier tape 3K. The slip clutch is set so that the trains in the carrier tape 3T and in the adhesive tape 3K are approximately the same size.

Das erfindungsgemässe Gerät kann ortsfest montiert und das Bleichteil von Hand oder mittels Roboter geführt sein. Umgekehrt kann auch das Bleichteil für den Applikationsvorgang festgehalten und das Gerät von Hand, motorisch auf einer Schiene oder mittels Roboter den Rand entlang geführt werden. Die erstgenannte Variante bietet sich insbesondere für kleinere Blechteile an, die zweitgenannte für grössere.The device according to the invention can be installed in a fixed position and the bleaching part can be guided by hand or by means of a robot. Conversely, the bleaching part can also be held for the application process and the device can be guided along the edge by hand, by motor on a rail or by means of a robot. The former variant is particularly suitable for smaller sheet metal parts, the latter for larger ones.

Der Abstand AI zwischen der Schwenkachse S2 des Gehäuses 13 und einer durch die Achsen 12a und 12b der Transport- und Anpressrollen 11a und 11b gelegten Ebene E ist massgebend für die maximal zulässige räumliche Krümmung des Bleichteiles B. Je kleiner der Krümmungsradius der kleinsten Krümmung des Blechteiles ist, desto kleiner muss der Abstand Algewählt werden. Es wurde gefunden, dass beispielsweise bei einem kleinst möglichen Blech-Krümmungsradius Rmin = 20 mm der Abstand AI S 7 mm gewählt werden muss. Bei dieser Dimensionierung können Blechteile mit einem Krümmungsradius von 20 mm (Rmin) von den Rollen 11a und 11b gerade noch einwandfrei, das heisst ohne Klemmen durch den Ausgangs-V-Spalt 10b des Vorfaltkanals 10 gezogen werden. Das Rollenpaar 11a/11b nimmt dabei die in Fig. 3 gezeigte Stellung ein.The distance AI between the pivot axis S2 of the housing 13 and a plane E defined by the axes 12a and 12b of the transport and pressure rollers 11a and 11b is decisive for the maximum permissible spatial curvature of the bleaching part B. The smaller the radius of curvature of the smallest curvature of the sheet metal part the smaller the distance Al must be selected. It was found that, for example with a smallest possible sheet radius of curvature Rmin = 20 mm, the distance AI S 7 mm must be selected. With this dimensioning, sheet metal parts with a radius of curvature of 20 mm (Rmin) can just just be pulled flawlessly from the rollers 11a and 11b, that is to say without clamping through the exit V-gap 10b of the pre-folding channel 10. The pair of rollers 11a / 11b assumes the position shown in FIG. 3.

Je nach Stärke und Richtung der Blechkrümmung wird das Rollenpaar 11a/11b mehr oder weniger stark aus seiner Mittel- bzw. Neutrallage N ausgelenkt. Die Wegdifferenzen an den Transport- und Anpressrollen 11a und 11b werden durch die Torsionselastizität der Antriebswellen 14a bzw. 14b ausgeglichen.Depending on the strength and direction of the sheet metal curvature, the pair of rollers 11a / 11b is more or less deflected from its central or neutral position N. The path differences on the transport and pressure rollers 11a and 11b are compensated for by the torsional elasticity of the drive shafts 14a and 14b.

Der Abstand A2 zwischen der die Faltung des Klebstoffbandes 3K einleitenden Umlenk- und Vorfaltrolle 9 und dem Austritts-V-Querschnitt 10b des Vorfaltkanals 10 ist so festgelegt bzw. einstellbar, dass die Faltung über diesen Abstand im wesentlichen kontinuierlich zunehmend (V-Winkel kontinuierlich abnehmend) erfolgt. Ein zu grosser Abstand hätte den Nachteil, dass die durch die Rolle 9 eingeleitete Faltung vor dem die Faltung weiterführenden Vorfaltkanal 10 wiederum verloren ginge bzw. im Extremfall das Band 3K mit « verkehrter Vorfaltung in den Vorfaltkanal 10 gelangen würde. Ausserdem ist ein zu grosser Abstand auch deshalb schädlich, weil die verwendeten Klebstoffbänder in der Regel sehr plastisch sind und daher längere Zugstrecken vermieden werden müssen. Bei zu kleinem Abstand A2 können Bandverzerrungen auftreten.The distance A2 between the deflecting and pre-folding roller 9 initiating the folding of the adhesive tape 3K and the outlet V cross section 10b of the pre-folding channel 10 is set or adjustable such that the folding increases substantially continuously over this distance (V angle continuously decreasing ) he follows. Too great a spacing would have the disadvantage that the folding initiated by the roller 9 would again be lost in front of the pre-folding duct 10 which continued the folding, or in extreme cases the tape 3K would get into the pre-folding duct 10 with the wrong pre-folding. In addition, an excessively large distance is also harmful because the adhesive tapes used are generally very plastic and therefore longer train distances must be avoided. If the distance A2 is too small, band distortion can occur.

Unregelmässigkeiten der Blechkantenkonturen passt sich das Anpressrollenpaar lla, 11b bzw. das Gehäuse 13 dadurch an, dass es federnd nach hinten ausweichen kann (Pfeile H13-HF13, Fig 1). Analoges gilt für die Umlenk- und Vorfaltrolle 9 (Pfeile H9-HF9, Fig 1).Irregularities in the sheet metal edge contours are adapted to the pressure roller pair 11a, 11b or the housing 13 in that it can spring back to the rear (arrows H13-HF13, Fig. 1). The same applies to the deflection and pre-folding roller 9 (arrows H9-HF9, Fig 1).

Das erfindungsgemässe Gerät wurde mit den unter den Bezeichnungen Klebfilm DLS 615 und Klebfilm XB 3615 der CIBA-GEIGY, Basel, im Handel befindlichen Klebstoffbändern getestet. Bei diesen Klebfilmen handelt es sich um solche auf Epoxidharz-Einkomponentenbasis mit ausreichender Lagerfähigkeit bei niederen Temperaturen (Kühlschrank), welche bei ca. 120 °C schnell aushärten. Die Filme sind so aufgebaut, dass sie auf einer Seite bei Raumtemperatur klebrig sind. Die Bänder 3K sind ca. 16 mm breit und ca. 0,30 bis 0,35 mm dick. Der Trägerstreifen 3T ist aus Papier und etwas breiter. Beim Abziehen von der Vorratsrolle 2 haftet der Träger auf der Klebrigeren Filmseite und das Klebstoffband 3K wird nach dem Abziehen vom Trägerband 3T mit der klebrigen Seite nach innen gefaltet und von den Rollen 11a und 11 b auf das Blech 3 geklebt.The device according to the invention was tested with the adhesive tapes commercially available under the names of adhesive film DLS 615 and adhesive film XB 3615 from CIBA-GEIGY, Basel. These adhesive films are those based on one-component epoxy resin with sufficient shelf life at low temperatures (refrigerator), which harden quickly at approx. 120 ° C. The films are designed so that they are sticky on one side at room temperature. The 3K tapes are approx. 16 mm wide and approx. 0.30 to 0.35 mm thick. The carrier strip 3T is made of paper and a little wider. When pulling off the supply roll 2, the carrier adheres to the stickier side of the film, and the adhesive tape 3K, after being pulled off the carrier tape 3T, is folded with the sticky side inward and glued onto the metal sheet 3 by the rolls 11a and 11b.

Klebstoffbänder aus DLS 615 bzw. XB sind zähplastich und weisen praktisch keine Eigensteifigkeit und nur eine sehr geringe Zugfestigkeit auf.Adhesive tapes made of DLS 615 or XB are tough plastic and have practically no inherent rigidity and only a very low tensile strength.

Für die Applikation eines Bandes aus DLS 615 bzw. XB 3615 mit dem oben angegebenen Querschnitt (Breite x Dicke = 16 x 0,30) auf ein Blechformteil B mit Krümmungsradien von im Minimum 20 mm wurde die dargestellte Maschine wie folgt dimensioniert bzw. eingestellt:

Figure imgb0001
For the application of a tape made of DLS 615 or XB 3615 with the cross section specified above (width x thickness = 16 x 0.30) to a sheet metal part B with radii of curvature of at least 20 mm, the machine shown was dimensioned or set as follows:
Figure imgb0001

(Siehe Bezugszeichenliste Seite 5 f.)(See list of reference symbols on page 5 f.)

Figure imgb0002
Figure imgb0002

Claims (12)

1. Apparatus for the U-shaped application of an adhesive strip (3K) longitudinally around the edge of a shaped part of sheet metal (B), the strip guiding means of which apparatus has a funnel-like pre-folding channel (10), from which the pre-folded strip runs between two pressure rollers (lla, 11b) which are pressed resiliently against each other and which press the strip simultaneously against the two sides of a shaped part of sheet metal which has been introduced into the strip fold zone, characterized in that the pair of pressure rollers (11a, 11b) is pivotable as a unit about a common axis (S2), which lies in a straight line which runs parallel to the roller axes (12a, 12b) and with reference to the strip conveying direction runs at a distance (Al) in front of the roller axes approximately in the plane of symmetry of the pre-folding channel (10), and that the pressure rollers (11a, 11 b) are so drivable by motor that both rollers, even when differences occur between their speeds, always exert an at least approximately equally great force of conveyance onto the shaped part of sheet metal (B) which has been passed through.
2. Apparatus according to Claim 1, characterised in that in the neutral position (N) of the pair of pressure rollers (11 a, 11 b), in which its plane of symmetry at least approximates to that of the prefolding channel (10), the distance (Al) between the pivot axis (S2) of the pair of pressure rollers (11a, 11b) and a plane (E) situated through its axes (12a, 12b) coincides at least approximately with that between the pivot axis (S2) and the outlet (10b) of the pre-folding channel (10).
3. Apparatus according to Claim 1, characterised in that the pair of pressure rollers (11a, 11b) is held resiliently in the neutral position (N), in which its plane of symmetry coincides at least approximately with that of the pre-folding channel (10).
4. Apparatus according to one of the preceding Claims, characterised in that a strip deflecting roller (9), which is constructed as a pre-folding roller, is arranged immediately ahead of the pre-folding channel (10), which roller also has a slightly arcuate or V-shaped profile with the smallest diameter in the middle of the roller.
5. Apparatus according to Claim 4, characterised in that the profile angle of the deflecting and preforming roller (9) is approximately 155° to 165°.
6. Apparatus according to one of the preceding Claims, characterised in that the V-angle of the preforming channel (10) at the inlet (10a) is approximately 90° to 100° and at the outlet (10b) is approximately 10° to 15°.
7. Apparatus according to one of the preceding Claims, characterised in that the effective passage length (A3) of the pre-folding channel (10) is approximately 0.6 to 0.8 times the effective width of the deflecting and pre-folding roller (9).
8. Apparatus according to one of the preceding Claims, characterised in that the drive of the pressure rollers (11a, 11b) is effected by a common motor, at least one of the two rollers (11a, 11b) being coupled with the motor by means of a torsionally elastic element, preferably a flexible and torsionally elastic shaft (14a, 14b).
9. Apparatus according to one of the preceding Claims, characterised in that at least one of the two axes (12a, 12b) of the pressure rollers (11a, 11b) is pivotably mounted and urged towards the other roller by means of a spring (16), the pivot axis (S1) being so adjusted or so capable of being adjusted that at a specified spacing of the rollers the roller axes (12a, 12b) are exactly parallel with each other.
10. Apparatus according to one of Claims 4 to 9, characterised in that the strip deflecting and pre- folding roller (9) is displacable against the force (HF9) of a spring in a direction lying between the inlet and outlet direction of the strip.
11. Apparatus according to Claim 10, characterised in that the direction of displacement of the deflecting and pre-folding roller (9) runs approximately parallel to the axes (12a, 12b) of the pressure rollers (lla, 11b).
12. Apparatus according to one of the preceding Claims, characterised in that the pair of pressure rollers (11a, 11b) is displacable rearwardly against the force (HF13) of a spring in the direction of its axes (12a, 12b).
EP82810339A 1981-08-17 1982-08-11 Device for applying adhesive tape to the edge of sheet material Expired EP0072779B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82810339T ATE9216T1 (en) 1981-08-17 1982-08-11 DEVICE FOR APPLICATION OF AN ADHESIVE TAPE AROUND THE EDGE OF A METAL FORMING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH530181 1981-08-17
CH5301/81 1981-08-17

Publications (3)

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EP0072779A2 EP0072779A2 (en) 1983-02-23
EP0072779A3 EP0072779A3 (en) 1983-03-09
EP0072779B1 true EP0072779B1 (en) 1984-09-05

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US (1) US4401503A (en)
EP (1) EP0072779B1 (en)
JP (1) JPS5838774A (en)
AT (1) ATE9216T1 (en)
AU (1) AU549730B2 (en)
DE (1) DE3260660D1 (en)
ZA (1) ZA825917B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011104929U1 (en) 2011-08-29 2011-11-21 Lohmann Gmbh & Co. Kg adhesive tape applicator
DE102011076462A1 (en) * 2011-05-25 2012-11-29 Aci-Ecotec Gmbh & Co. Kg Method for laying adhesive tape for electrically conductive contact strips of thin-film photovoltaic solar cell module, involves replacing tape reel by supply station in which laying head with empty tape reels are stored
DE102011111377B3 (en) * 2011-08-29 2013-01-17 Lohmann Gmbh & Co. Kg Adhesive tape applicator, useful to plate straight lines, comprises rollers for transporting, enveloping and compressing, a slide or ball element for guiding the tape, and a symmetrical or asymmetric wall surface of thin plate
DE102016226058A1 (en) * 2016-12-22 2018-06-28 Tesa Se Tape dispenser with diverter

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4486261A (en) * 1983-02-16 1984-12-04 Ciba-Geigy Corporation Apparatus for the application of an adhesive tape about the edge of a shaped part of sheet metal
DE3560118D1 (en) * 1984-02-17 1987-05-21 Ciba Geigy Ag Device for sticking an adhesive tape to the edge of a plate, especially of a metal plate
DE3413066A1 (en) * 1984-04-06 1985-10-31 Roth-Electric Gmbh, 8035 Gauting Device for applying an adhesive tape in a U-shaped manner around the edge of a sheet metal moulding
DE3448100C2 (en) * 1984-04-06 1987-05-21 Roth-Electric Gmbh, 8035 Gauting, De Device for applying an adhesive tape in a U-shaped manner around the edge of a sheet-metal formed part
DE3837621C1 (en) * 1988-11-05 1990-04-05 Pelikan Ag, 3000 Hannover, De
US5356505A (en) * 1991-02-15 1994-10-18 Salvatore John J Stained glass foil applicator
JP2544030Y2 (en) * 1991-07-31 1997-08-13 シードゴム工業株式会社 Paint transfer tool
US5405471A (en) * 1992-05-19 1995-04-11 Lemaster; Timothy S. Splicing apparatus and process
US5545279A (en) * 1992-12-30 1996-08-13 Hall; Herbert L. Method of making an insulation assembly
FR2703362B1 (en) * 1993-03-31 1997-08-29 Aerospatiale METHOD AND MACHINE FOR BONDING AN ADHESIVE PROTECTION EDGE ON THE EDGE OF A MULTI-LAYER PANEL SUCH AS A THERMAL PROTECTION PANEL OF A SPACE ENGINE.
US5439549A (en) * 1993-12-28 1995-08-08 The Boeing Company Double edged pressure sensitive folded tape application apparatus
US5605596A (en) * 1995-02-06 1997-02-25 The Goodyear Tire & Rubber Company Dual gumstrip applicator for tire cord belts
JP3396411B2 (en) * 1997-11-19 2003-04-14 リンテック株式会社 Tape squeezing device
GB2355452B (en) * 1999-10-21 2002-06-19 A C Labels Ltd Folding and printing material
US6578485B2 (en) * 2001-08-16 2003-06-17 Kodak Polychrome Graphics Llc Article and method for use in preparing a lithographic printing plate by imaging in a printer engine
US20040140057A1 (en) * 2003-01-21 2004-07-22 Gerhard Burmann Apparatus useful for applying sealant material to a structural member
US8240843B2 (en) * 2009-03-16 2012-08-14 Hewlett-Packard Development Company, L.P. Media roll winder for digital web press
US8393375B2 (en) * 2010-10-26 2013-03-12 Lamus Enterprises Inc. Edge folding tape applicator
US20120255672A1 (en) * 2011-04-11 2012-10-11 Marshall Dale C Methods and apparatuses for applying a handling tab to continuous glass ribbons
DE102013100397A1 (en) * 2012-10-15 2014-04-17 Reis Group Holding Gmbh & Co. Kg Method and device for applying a strip-like material to an object
US9079741B2 (en) 2013-08-06 2015-07-14 Lamus Enterprises Inc. Tape applicator to apply tape to a vertical side of a case
JP6340249B2 (en) * 2014-05-28 2018-06-06 株式会社荏原製作所 Tape pasting apparatus and tape pasting method
JP6500481B2 (en) * 2015-02-17 2019-04-17 富士電機株式会社 Semiconductor device manufacturing method
DE102016223783A1 (en) * 2016-11-30 2018-05-30 Tesa Se Applicator for plasma-initiated adhesive tapes with folding mechanism
CN106586661B (en) * 2016-12-28 2018-07-10 珠海格力电器股份有限公司 Automatic adhesive tape application pastes machine
CN109292143A (en) * 2018-07-19 2019-02-01 青岛天顺达机械制造有限公司 A kind of hydraulic automatic blanking machine
CN109850212B (en) * 2018-12-14 2024-04-05 重庆和平制药有限公司 Automatic medicine packing machine
CN110540097A (en) * 2019-09-29 2019-12-06 中航三鑫股份有限公司 Glass edge tape sticking device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2219678A (en) * 1936-02-12 1940-10-29 Rudolph Grohskopf Apparatus for the protection of edges of flat sheets, as paper, linen, or the like
US2528754A (en) * 1948-08-11 1950-11-07 Dallas H Johnson Device for binding the edges of lantern slide assemblies or similar articles
US2749966A (en) * 1954-11-12 1956-06-12 St Regis Paper Co Method and apparatus for heat sealing closure tapes to containers
US2916079A (en) * 1957-12-18 1959-12-08 Ernest H Schiefer Portable hand tape folder
US3947614A (en) * 1966-11-11 1976-03-30 Otto Alfred Becker Protection from corrosion of resistance-welded sheet metal covered with non-metallic layers
US3733237A (en) * 1971-10-20 1973-05-15 Ppg Industries Inc Apparatus for making hermetically sealed glazing units
US3886013A (en) * 1973-08-01 1975-05-27 Ppg Industries Inc Pivoted arm device for assembly of multiple glazed units
JPS592044Y2 (en) * 1979-02-13 1984-01-20 日新製鋼株式会社 Device for attaching self-adhesive tape to plate-like objects

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011076462A1 (en) * 2011-05-25 2012-11-29 Aci-Ecotec Gmbh & Co. Kg Method for laying adhesive tape for electrically conductive contact strips of thin-film photovoltaic solar cell module, involves replacing tape reel by supply station in which laying head with empty tape reels are stored
DE202011104929U1 (en) 2011-08-29 2011-11-21 Lohmann Gmbh & Co. Kg adhesive tape applicator
DE102011111377B3 (en) * 2011-08-29 2013-01-17 Lohmann Gmbh & Co. Kg Adhesive tape applicator, useful to plate straight lines, comprises rollers for transporting, enveloping and compressing, a slide or ball element for guiding the tape, and a symmetrical or asymmetric wall surface of thin plate
DE102016226058A1 (en) * 2016-12-22 2018-06-28 Tesa Se Tape dispenser with diverter
DE102016226058B4 (en) 2016-12-22 2019-01-17 Tesa Se Tape dispenser with diverter
US11667490B2 (en) 2016-12-22 2023-06-06 Tesa Se Adhesive tape dispenser having a deflecting device

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JPS5838774A (en) 1983-03-07
ZA825917B (en) 1983-06-29
AU8717582A (en) 1983-02-24
DE3260660D1 (en) 1984-10-11
US4401503A (en) 1983-08-30
EP0072779A2 (en) 1983-02-23
EP0072779A3 (en) 1983-03-09
JPH0412310B2 (en) 1992-03-04
ATE9216T1 (en) 1984-09-15
AU549730B2 (en) 1986-02-06

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