EP3792208B1 - Dispositif de pliage pour bandes de matières planes - Google Patents

Dispositif de pliage pour bandes de matières planes Download PDF

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Publication number
EP3792208B1
EP3792208B1 EP19196461.8A EP19196461A EP3792208B1 EP 3792208 B1 EP3792208 B1 EP 3792208B1 EP 19196461 A EP19196461 A EP 19196461A EP 3792208 B1 EP3792208 B1 EP 3792208B1
Authority
EP
European Patent Office
Prior art keywords
folding
knife
bar
knives
folding bar
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.)
Active
Application number
EP19196461.8A
Other languages
German (de)
English (en)
Other versions
EP3792208A1 (fr
Inventor
Winfried Schäfer
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.)
Roth Composite Machinery GmbH
Original Assignee
Roth Composite Machinery 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 Roth Composite Machinery GmbH filed Critical Roth Composite Machinery GmbH
Priority to EP19196461.8A priority Critical patent/EP3792208B1/fr
Publication of EP3792208A1 publication Critical patent/EP3792208A1/fr
Application granted granted Critical
Publication of EP3792208B1 publication Critical patent/EP3792208B1/fr
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    • 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
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/247—Making webs in which the channel of each corrugation is transverse to the web feed by reciprocating members
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0082—Making filter elements, e.g. pleated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/20—Zig-zag folders
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06J—PLEATING, KILTING OR GOFFERING TEXTILE FABRICS OR WEARING APPAREL
    • D06J1/00—Pleating, kilting or goffering textile fabrics or wearing apparel
    • D06J1/02—Pleating, kilting or goffering textile fabrics or wearing apparel continuously and transversely to the direction of feed
    • D06J1/06—Pleating, kilting or goffering textile fabrics or wearing apparel continuously and transversely to the direction of feed by reciprocating blades

Definitions

  • the invention relates to a folding device for flat material webs, in particular for folding or continuously folding material webs based on cellulose, paper, plastic and/or wire mesh and/or based on combinations or laminates of the aforementioned materials.
  • the material web to be folded can be a wire mesh-reinforced material web based on cellulose, paper, plastic or similar materials.
  • the folding device according to the invention has an infeed table for the continuous feeding of the web of material and at least one folding bar with a folding blade fixed thereto, which is set up for specific folding heights.
  • the folding beam can be moved up and down in cycles, so that folds can be introduced into the material web with the folding knife acting on the material web.
  • the web of material is expediently folded in the manner of bellows by means of this folding device, specifically in particular continuously folded in the manner of bellows.
  • Folding devices of the type mentioned above, see for example US 5,961,435A are known from practice and from the prior art in various variants.
  • the folding knives are usually fixed to the associated folding beam with screws, bolts or similar fixing elements.
  • Each folding knife is set up for specific folding heights and has a corresponding knife height h.
  • the folding knife fixed to the folding beam must first be dismantled and replaced with another folding knife of an alternative knife height h, which is set up for alternative folding heights.
  • h which is set up for alternative folding heights.
  • These measures are expensive.
  • the continuous operation of the device is interrupted by such a folding knife replacement for an undesirably long period of time.
  • the disassembly or assembly of the folding knife is also error-prone.
  • these known measures are also included relatively high effort and relatively high costs. In this respect, there is a need for improvement.
  • the invention is based on the technical problem of specifying a folding device of the type mentioned at the outset, in which the folding knife of the folding beam can be changed in a simple, inexpensive and functionally reliable manner.
  • the invention teaches a folding device of the type described at the beginning, which is characterized in that at least one further second folding knife is fixed to the folding bar and that by rotating the folding bar about an axis of rotation R extending parallel to the longitudinal direction of the folding bar instead of the first folding knife the second folding knife is available for introducing the folds into the web of material.
  • the continuously supplied webs of material are preferably webs of material based on cellulose, paper, plastic and/or wire mesh or combinations or laminates of these materials.
  • the folded webs of material are used for filter media. It is within the scope of the invention that the folds are introduced into the web of material with the proviso that the web of material is folded like a bellows.
  • a folding beam and the folding knives connected to it are arranged perpendicularly or essentially perpendicularly to the feed direction or to the longitudinal direction of the material web.
  • a folding knife expediently extends in the longitudinal direction of the associated one Folding bar, preferably over at least most of the length of the associated folding bar. It is recommended that a folding knife be fixed to the associated folding beam by means of fixing elements such as screws, bolts, clamping elements or the like. It is within the scope of the invention for a folding knife to protrude beyond its knife height h over the edge of the associated folding beam.
  • the first folding knife and the at least one further or second folding knife are each set up for different folding heights.
  • the at least two folding knives expediently protrude to different extents over the associated folding beam.
  • a highly recommended embodiment of the invention is characterized in that the first folding knife and another second folding knife are arranged on opposite longitudinal sides of the folding beam.
  • the respective other folding knife is then preferably ready for folding to disposal.
  • the two folding knives are arranged on opposite long sides of the folding bar and by rotating the folding bar about the axis of rotation by 180° or by about 180°, the other folding knife is available for folding.
  • At least three folding knives are fixed to the folding bar at a mutual distance and the folding knives are changed by rotating the folding bar by an angle of rotation corresponding to the distance between the folding knives.
  • the at least three or the three Folding knife fixed evenly distributed over the circumference of the folding beam.
  • the rotation of the folding bar to change a folding blade is then expediently carried out by 120° or by approximately 120° or by 240° or by approximately 240°.
  • the folding knives of the first folding bar are set up as upper knives and that a second folding bar is arranged below the first folding bar, which has at least one counter-folding knife, which acts as a lower knife for interacting with a folding knife of the first working as an upper knife Folding beam is set up.
  • the statement that the second folding bar is arranged below the first folding bar relates to the erected state of the device with the first folding bar on the upper side and the second folding bar on the lower side.
  • a folding knife of the first folding bar functioning as an upper knife and a counter-folding knife of the second folding bar functioning as a lower knife takes place as follows: During the up and down movement of the first folding bar, a folding knife of the first folding bar functioning as an upper knife slides directly over the surface a counter-folding knife of the second folding beam that functions as a bottom knife. In this way, functionally reliable folds can be formed in the continuously fed web of material and the web of material can in this way be folded in particular in the manner of bellows.
  • the second folding bar has at least two counter-folding knives.
  • the first or second counter-folding blade fixed to the second folding bar is then preferably available as the lower blade.
  • Two counter-folding knives are recommended fixed on opposite sides or on opposite longitudinal sides of the second folding bar.
  • a changeover between the two counter-folding knives takes place by rotating the folding beam about its axis of rotation, specifically preferably by rotating it through an angle of rotation of 180° or approximately 180°.
  • At least three counter-folding knives, in particular three counter-folding knives are fixed as lower knives on the second folding beam.
  • first folding bar preferably applies to the second folding bar or to the counter-folding knives fixed thereto, in particular with regard to the number and/or arrangement and/or fixing and/or rotation or rotation angle of the folding knives or counters -folding knife. In order to avoid repetition, reference is therefore made to the features of the first folding beam.
  • each counter-folding knife of the second folding bar is adapted to a folding knife of the first folding bar with regard to the desired folding heights and that a folding knife and a complementary counter -Folding knives can be converted into a folding position.
  • the folding position of folding knife and counter-folding knife means in particular that after the rotation of the first or second folding bar, the folding knife interacts with the corresponding counter-folding knife during the subsequent folding process.
  • the two folding bars can be rotated around their axis of rotation at the same time or approximately at the same time
  • the two folding beams can also be rotated one after the other.
  • the knife height h 1 of a first folding knife is at least 1.2 times, preferably at least 1.3 times, preferably at least 1.4 times and very preferably at least 1.5 times the knife height h 2 of a second folding knife of the folding beam.
  • the knife height h 1 of a first counter-folding knife is at least 1.2 times, preferably at least 1.3 times, preferably at least 1.4 times and very preferably at least 1.5 times as large as the knife height h 2 a second counter folding knife of the second folding beam.
  • the invention is based on the knowledge that with the folding device according to the invention a very simple and inexpensive change from one folding knife or counter-folding knife to another folding knife or counter-folding knife is possible. Elaborate disassembly and assembly work is not required with the device according to the invention. A quick change of the upper and lower knives is only possible by rotating the folding beam. In this respect, the operation or the continuous operation of the device is only briefly interrupted. It should be emphasized that these advantageous measures can be implemented at relatively low cost. The invention is thus characterized by simplicity, little effort and low cost.
  • the figures show a folding device according to the invention for flat material webs 1, specifically for the continuous folding of these material webs 1.
  • it may be a wire mesh-reinforced material web 1 based on cellulose.
  • the continuously fed web of material 1 is folded in the manner of bellows.
  • the enlarged section of the 1 shows the folds 7 introduced into the material web 1 with such a bellows-like fold.
  • the material web 1 is fed continuously via an infeed table 2 and is guided between two folding bars 3, 4 arranged behind the infeed table 2 in the feed direction.
  • the first upper folding bar 3 is moved up and down in cycles so that the bellows-like fold is realized in the web of material.
  • the folding beams 3, 4 expediently extend perpendicularly to the feed direction or to the longitudinal direction of the material web 1.
  • Two folding knives 5, 6 are preferably fixed to the upper folding beam 3 and, in the exemplary embodiment, project over the folding beam 3 on opposite sides of this folding beam 3.
  • the folding knives 5, 6 protrude beyond the edge of the folding beam 3 by their knife height h.
  • the lower second folding bar 4 has two counter-folding knives 8, which preferably and in the exemplary embodiment protrude on opposite sides of the second lower folding bar 4 over the edge of the folding bar 4, namely over their knife height h.
  • the two folding knives 5, 6 of the first upper folding bar 3 function during the folding as an upper knife and the two counter-folding knives 8 of the second lower folding bar 4 function as lower knives during the fold.
  • the folding knives 5, 6 of the first folding bar 3 have a different knife height h.
  • the knife height h of the counter-folding knife 8 of the second lower folding beam 4 is also expediently different.
  • the first upper folding bar 3 is preferably rotated and in the exemplary embodiment rotated about an axis of rotation extending parallel to its longitudinal direction, in particular and in the exemplary embodiment rotated by 180°. This is for example in the 3 indicated by a corresponding arrow.
  • this is also preferred and rotated in the exemplary embodiment about an axis of rotation oriented parallel to its longitudinal direction, specifically preferably and rotated by 180° in the exemplary embodiment.
  • Changing from one folding knife 5 to another folding knife 6 or from one counter-folding knife 8 to another counter-folding knife 8 can therefore be achieved by simply rotating the first folding bar 3 or the second folding bar 4 about the respective axis of rotation R.
  • This rotation change of the folding knife 5, 6 or counter-folding knife 8 can be carried out easily, quickly and with little effort. Complicated assembly and disassembly work is not necessary in comparison to the measures known from the prior art.
  • the operation of the folding device according to the invention only has to be briefly interrupted to change the knives. In this way, an increase in production speed is also achieved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (11)

  1. Dispositif de pliage de bandes de matière (1) planes, dédié notamment au pliage continu de bandes de matière à base de cellulose, de papier, de matière plastique et/ou de toile métallique et se présentant sous la forme de laminés multicouches des matières précédemment citées, pourvu d'une table d'alimentation (2) pour amener de manière continue la bande de matière (1) et pourvu d'au moins une barre de pliage (3, 4), dotée d'une première lame de pliage (5, 6), fixée sur cette dernière, qui est aménagée pour des hauteurs de pliage déterminées, la barre de pliage (3, 4) étant déplaçable de manière cadencée vers le haut et vers le bas, de telle sorte qu'à l'aide de la lame de pliage (5) agissant sur la bande de matière (1), des plis (7) puissent être ménagés dans la bande de matière (1), caractérisé en ce que sur la barre de pliage (3, 4) est fixée au moins une deuxième lame de pliage (6) supplémentaire et en ce que par une rotation de la barre de pliage (3, 4) autour d'un axe de rotation R qui s'étend à la parallèle de la direction longitudinale de la barre de pliage (3, 4), en remplacement de la première lame de pliage (5), la deuxième lame de pliage (6) soit disponible, pour ménager les plis (7) dans la bande de matière (1).
  2. Dispositif selon la revendication 1, caractérisé en ce que les plis (7) sont susceptibles d'être ménagés dans la bande de matière (1) à condition que la bande de matière (1) puisse se plier à la manière d'un soufflet.
  3. Dispositif selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la barre de pliage (3, 4) et la lame de pliage (5, 6) sont placées à la perpendiculaire ou sensiblement à la perpendiculaire de la direction d'aménagé ou de la direction longitudinale de la bande de matière (1).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les lames de pliage (5, 6) débordent de la valeur de leur hauteur de lame (h) au-delà du bord de la barre de pliage (3, 4) associée.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la première lame de pliage (5) et l'au moins une lame de pliage (6) supplémentaire présentent des hauteurs de lame (h) différentes.
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la première lame de pliage (5) et une deuxième lame de pliage (6) supplémentaire sont placées sur des faces longitudinales opposées de la barre de pliage (3, 4) et en ce que de préférence, par une rotation de la barre de pliage (3, 4) autour d'un angle de rotation de 150° à 210°, notamment de 160° à 200°, de préférence de 170° à 190° et de manière très préférentielle, de 175° à 185° l'autre lame de pliage (5, 6) respective soit disponible pour le pliage.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'au moins trois lames de pliage (5, 6) sont fixées avec un écart mutuel sur la barre de pliage (3, 4) et en ce que par une rotation de la barre de pliage (3, 4) de la valeur d'un angle de rotation correspondant à l'écart mutuel entre les lames de pliage (5, 6), un changement de lame de pliage (5, 6) ait lieu.
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les lames de pliage (5, 6) de la première barre de pliage (3) sont aménagées en tant que lames supérieures et en ce qu'une deuxième barre de pliage (4), qui comporte au moins une contre-lame de pliage (8), qui en tant que lame inférieure est aménagée pour interagir avec une lame de pliage (5, 6) de la première barre de pliage (3), est placée en dessous de la première barre de pliage (3).
  9. Dispositif selon la revendication 8, caractérisé en ce que la deuxième barre de pliage (4) comporte au moins deux contre-lames de pliage (8) et en ce que par une rotation de la deuxième barre de pliage (4) autour d'un deuxième axe de rotation s'étendant à la parallèle de la direction longitudinale de la deuxième barre de pliage (4), sélectivement la première ou la deuxième contre-lame de pliage (8) fixée sur la deuxième barre de pliage (4) soit disponible en tant que lame inférieure.
  10. Dispositif selon l'une quelconque des revendications 8 ou 9, caractérisé en ce que chaque contre-lame de pliage (8) de la deuxième barre de pliage (4) est adaptée en rapport aux hauteurs de pliage souhaitées à une lame de pliage (5, 6) de la première barre de pliage (3) et en ce que par une rotation de la première barre de pliage (3), ainsi que par une rotation de la deuxième barre de pliage (4), une lame de pliage (5, 6) et une contre-lame de pliage (8) complémentaire puissent être amenées dans une position de pliage.
  11. Dispositif selon l'une quelconque des revendications 8 à 10, caractérisé en ce que la hauteur de lame (h1) d'une première lame de pliage (5) correspond à au moins 1,2 fois, de préférence à au moins 1,3 fois et de manière préférentielle, à au moins 1,4 fois la hauteur de lame (h2) d'une deuxième lame de pliage (6) de la barre de pliage (3) et / ou la hauteur de lame h1 d'une première contre-lame de pliage (8) correspondant à au moins 1,2 fois, de préférence à au moins 1,3 fois, de manière préférentielle, à au moins 1,4 fois la hauteur de lame (h2) d'une deuxième contre-lame de pliage (8) de la deuxième barre de pliage (4).
EP19196461.8A 2019-09-10 2019-09-10 Dispositif de pliage pour bandes de matières planes Active EP3792208B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19196461.8A EP3792208B1 (fr) 2019-09-10 2019-09-10 Dispositif de pliage pour bandes de matières planes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19196461.8A EP3792208B1 (fr) 2019-09-10 2019-09-10 Dispositif de pliage pour bandes de matières planes

Publications (2)

Publication Number Publication Date
EP3792208A1 EP3792208A1 (fr) 2021-03-17
EP3792208B1 true EP3792208B1 (fr) 2022-11-09

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB627367A (en) * 1947-07-16 1949-08-08 Bernard Joseph Pilliner Improvements relating to crimping or pleating
JP2522533B2 (ja) * 1988-12-06 1996-08-07 株式会社新興製作所 連続用紙の折りたたみ機構
JP2565766Y2 (ja) * 1992-03-02 1998-03-18 株式会社新興製作所 連続用紙の折り機構
DE9412210U1 (de) * 1994-07-28 1994-12-01 Schaefer Hermann Faltvorrichtung

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