EP2602040B1 - Agencement de mesure - Google Patents

Agencement de mesure Download PDF

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Publication number
EP2602040B1
EP2602040B1 EP20120194515 EP12194515A EP2602040B1 EP 2602040 B1 EP2602040 B1 EP 2602040B1 EP 20120194515 EP20120194515 EP 20120194515 EP 12194515 A EP12194515 A EP 12194515A EP 2602040 B1 EP2602040 B1 EP 2602040B1
Authority
EP
European Patent Office
Prior art keywords
transition
contour line
blade
arrangement according
radius
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.)
Not-in-force
Application number
EP20120194515
Other languages
German (de)
English (en)
Other versions
EP2602040A1 (fr
Inventor
Axel Barten
André Stahl
Ingo DIETRICH
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.)
Achenbach Buschhetten GmbH and Co KG
Original Assignee
Achenbach Buschhetten GmbH and Co KG
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 Achenbach Buschhetten GmbH and Co KG filed Critical Achenbach Buschhetten GmbH and Co KG
Publication of EP2602040A1 publication Critical patent/EP2602040A1/fr
Application granted granted Critical
Publication of EP2602040B1 publication Critical patent/EP2602040B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D7/204—Anvil rollers

Definitions

  • the present invention relates to a knife assembly for slitting web strips of films or tapes with a lower blade shaft and at least one arranged on the lower blade shaft lower blade and an adapter assembly, wherein between the lower blade and the lower blade opposite intermediate piece of the spacer assembly, a cutting groove is formed for the entry of a on a Upper knife shaft arranged upper blade, such that an upper blade cutting edge of the upper blade is guided past a lower blade cutting edge formed on the lower blade, wherein the lower blade cutting edge oppositely disposed axial support edge of the intermediate piece in the longitudinal section profile with a support radius for supporting a film web edge of a by the knife engagement between Upper knife and lower knife sheared web strip is provided.
  • a knife assembly of the type mentioned is for example from the EP 1 162 043 A1 and is known in particular in a method known as "narrow-cut cutting” method for longitudinal cutting used of films and tapes, wherein the knife assembly is provided according to the desired width of the web strip produced by the longitudinal cutting between each two lower blades of the lower blade shaft with an intermediate piece arrangement, which in the case of EP 1 162 043 A1 Known knife assembly having an intermediate piece which has at its two axial ends in each case a support edge which defines an edge of a cutting groove, which is opposite to the defined by the cutting edge of the adjacent lower blade edge of the cutting groove.
  • a transition section is formed between the support edges respectively formed at the axial ends of the intermediate piece, which has a transition radius in the longitudinal section profile and extends continuously between the support edges and connects them together.
  • the cutting process is also shown in a schematic representation, in which an upper blade engages in the cutting groove formed on the lower blade shaft between the lower blade and the support radius of the intermediate ring assembly, so that a web strip as a result of the knife engagement between to perform a longitudinal section sheared off the lower blade and the upper blade.
  • a bending line is established in the area of a film web edge of the web strip, which is essentially determined by the geometry of the cross section of the web strip and the material properties of the web strip.
  • This at least superficial plastic deformation in the region of the film web edge can be particularly with colored or coated surfaces the films or tapes to be processed into web strips lead to local discolorations which render the cut web strips unusable in the region of their film web edges for further processing.
  • the film web edges must be cut out, which means that, for example, the film web edges are not available for punching of partial surfaces of the film, which are used for example as cover surfaces for packaging.
  • the present invention is therefore based on the object of providing a knife arrangement which makes it possible to produce web strips in a longitudinal cutting process whose film web edges have no plastic deformation in relation to other regions of the web strips and are therefore available for further processing of the web strips and no rejects represent.
  • the knife assembly according to the invention has between the support radius on the support edge of the intermediate ring and a cylinder portion of the intermediate ring on a transition section with a transition radius, wherein the transition radius is greater than the support radius.
  • the invention is based on the finding that in order to avoid the occurrence of plastic deformation in the region of the film web edge of a web strip, the formation of the bending line of the web strip resulting from the film when shearing off the web strip should be as little as possible due to local collisions with the surface of the intermediate ring arrangement , which lead to the formation of pressure peaks in the material of the web strip to affect.
  • This pressure peaks which can lead to local plastic deformation of the web strip, namely, arise when the web strip is obstructed during shearing in the free formation of its bending line, so for example against a in the surface of the spacer assembly formed edge abuts.
  • this formation of pressure peaks can be prevented by simulating the surface or the surface contour of the spacer assembly in accordance with the bending line of the web strip which results during the shearing process, thus providing the largest possible support of the web strip during the shearing process, without local pressure peaks occurring, however can.
  • an end point of the support edge contour line and an end point of the transition contour line coincide such that a support edge tangent placed at the endpoint of the support edge contour line and one at the endpoint of the transition contour line placed transition tangent tangent above the intermediate ring include a blunt transition angle.
  • the transition angle is greater than 160 degrees.
  • the complete avoidance of an edge-like transition is achievable if the support edge contour line and the transition contour line are tangentially substantially continuous with each other, so that the transition angle is 180 degrees or at least approximately 180 degrees.
  • a further improvement of the strip strips producible with the knife assembly becomes possible when an end point of the transition contour line and an end point of the cylinder contour line coincide in addition to the transition between the support edge radius and the transition radius in the transition between the transition contour line defined by the transition radius and a cylinder contour line defined by the cylinder section. such that a transition contour tangent at the end point of the transition contour line and the cylinder contour line above the intermediate ring include an obtuse transition angle.
  • the leveling of the transition between the transition contour line and the cylinder contour line can be increased by appropriate training of a suitable transition angle analogous to the transition between the support edge contour line and the transition contour line to a minimum approximately evenly trained transition.
  • an embodiment has proved to be a cutting knife arrangement in which the spacer assembly comprises two intermediate pieces which are arranged such that the intermediate pieces are arranged facing each other with their cylindrical portions and each form an axial end of the spacer assembly with their support edges so that, on the one hand, there are matching geometric relationships of the spacer arrangement in the region of both edges of the web strip and, on the other hand, the adjustment of the web width the desired web strip in a simple manner by corresponding axial lengths of the cylinder sections of the intermediate pieces is possible.
  • a spacer is arranged in the transition between the cylinder sections of the intermediate pieces facing one another, which enables the use of standardized spacers even with different web widths whose axial spacing determines the web width in a simple manner by the separately formed web Spacer, which preferably has a cylinder contour is formed.
  • the transition portion of the intermediate piece has a transition contour line defined by a plurality of transition radii, which is composed of a plurality of transition sections each defined by a transition radius, wherein coinciding endpoints the transition sections have tangents that include above the intermediate ring an obtuse transition angle.
  • Such an embodiment of the knife arrangement can prove to be particularly advantageous when web strips are to be produced with the knife assembly, which have no constant thickness or coating and thus have a changing along the web width cross-sectional profile, the corresponding effects on the formation of the bending line Has.
  • Fig. 1 shows a partial view of a knife assembly 10 according to the prior art, which has a arranged on a top blade shaft 11 upper blade 12 which is formed as a circular blade and engages in a cutting groove 13 of a lower blade shaft 14.
  • the cutting groove 13 is bounded by a cutting edge 15 of a lower blade 16 of the lower blade shaft 14 and an axial support edge 17 of an adjacent to the lower blade 16 intermediate piece 18 of a spacer assembly 19.
  • Fig. 1 shows the knife assembly 10 with a guided for longitudinal cutting of web strip 20 through the knife assembly film web 21, wherein in Fig. 1 only a left film web edge 22 of the web strip 20 is shown.
  • the longitudinal cutting of the web strip 20 is characterized in that a cutting edge 23 of the upper blade 12 is guided past the cutting edge 15 of the lower blade 16 and thereby cut from the film web 21 while forming the film web edge 22 of the web strip 20.
  • Fig. 1 is due to the cutting process, a deformation of the web strip 20 in the region of the film web edge 22, which corresponds approximately to the course of the bending line, which is adjusted by the action of a single load at the end of a bending beam.
  • the web strip 20 is supported in the region of the film web edge 22 on the support edge 17 of the intermediate piece 18.
  • the prior art corresponding intermediate piece 18 of the support edge 17 at an end point P s at the end of a support radius R s defined in its curvature support edge contour line 24 passes directly into a cylinder portion 25 of the intermediate ring 18, which is formed as a horizontal straight cylinder section contour line 26th having.
  • This immediate transition from the support edge contour line 24 into the straight cylinder section contour line 26 causes in the end point P s of the support edge contour line 24, which also represents the transition point to the cylinder section contour line 26, the formation of a force acting as a pressure peak on the film strip 22 reaction force, in particular in the surface region of the film web edge 22nd can cause a plastic deformation of the material of the web strip 20, which in turn can lead to local discoloration of the surface in particular in a coated surface of the film web 21 or a colored surface of the film web 21.
  • the preferably ring-shaped intermediate piece 29 has a support edge 30 with a support edge radius R s , which defines a support edge contour line 31 in its curvature.
  • a transition contour line 32 is formed, wherein in the transition between the support edge contour line 31 and the transition contour line 32, an end point of the support edge contour line 31 and an end point of the transition contour line 32 meet at a transition point P Ü1 , such that one at the end point of the transition contour line 32nd transition transition tangent t Ü1 and a set to the end of the support edge contour line 31 Stützrandkonturtangente ts include a transition angle ⁇ Ü1 , which is about 160 degrees in the case of the illustrated embodiment.
  • transition contour line 32 Due to the formation of the transition angle ⁇ Ü1 as an obtuse angle is omitted between the support edge contour line 31 and the transition contour line 32, the formation of a transitional edge, which can lead to the formation of a directed against the surface of the web strip 20 as a pressure peak reaction force. Furthermore, the transition contour line 32 is formed as a convex contour line due to the transition radius R Ü1 , so that to a cylindrical portion 33 of the intermediate piece 29, which has a relation to the support edge 30 increased diameter, a continuous increase in the spacer diameter z corresponding to the function of the transition contour line 32.
  • Fig. 3 shows again in a schematic representation of the contour line of in Fig. 2 shown intermediate piece 29, from the see is that the contour line composed of the support edge contour line 31, the transition contour line 32 and the cylinder contour line 34.
  • the two form at each end point of the support edge contour line 31 and the transition contour line 32 in the transition point P Ü1 tangents t s and t Ü1 the transition angle ⁇ Ü1 .
  • the tangent t Ü2 and the cylinder contour line 34 form the transition angle ⁇ Ü2 .
  • Fig. 4 shows in a schematic representation the contour line of a further intermediate piece 35, which compared to the in Fig. 3 illustrated contour line of the intermediate piece 29 subsequent to the transition contour line 32 in the transition to the cylinder contour line 34 has a further transition contour line 36 having a curvature of the transition contour line 36 determining transition radius R Ü2 .
  • tangents t.sub.U2 and t.sub.U3 set in the transition point P.sub.U3 form a transition angle .alpha..sub.U3 .
  • tangents t Ü4 set in the transition point P Ü4 and the cylinder contour line 34 form a further transition angle ⁇ Ü4 .
  • contour line shown therefore has, in addition to the support radius R s, the two transition radii R Ü1 and R Ü2 , so that between a support edge 37 of the intermediate piece 35 and a cylinder portion 38 of the intermediate piece 35, a cascade-like enlargement of the spacer diameter z results, the degree of uniformity of respective transition from the support edge contour line 31 to the transition contour line 32 and the transition contour line 32 to the transition contour line 36 and the transition contour line 36 to the cylinder contour line 34 ultimately depends on the choice of the transition angle formed between the respective tangents.
  • Fig. 5 shows an example of a knife assembly 39 which has on its lower blade shaft 40 between two lower blades 41 an intermediate piece assembly 42, each consisting of an intermediate piece 29 as shown in FIG Fig. 2 and a subsequent to the intermediate piece 29 on the lower blade shaft 40 arranged spacer 43 consists.
  • Fig. 6 shows in an alternative embodiment, an adapter assembly 44, in which two identically shaped intermediate pieces 29 are arranged with their cylindrical portions against each other, so that the in Fig. 6 illustrated spacer assembly 44 has a symmetrical structure.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)

Claims (16)

  1. Dispositif (27, 39) de lames permettant de couper en longueur des bandes (20) dans des feuilles ou des bandes, ayant un arbre (40) de lames inférieures et au moins une lame (41) inférieure qui est disposée sur l'arbre de lames inférieures et un dispositif (28, 42, 44) de pièce intermédiaire, entre la lame inférieure et une pièce (29) intermédiaire du dispositif de pièce intermédiaire opposé de la lame inférieure, une rainure (13) de coupe étant constituée pour l'entrée d'une lame (12) supérieure qui est disposée sur un arbre (11) de lames supérieures de telle manière qu'un bord (23) de coupe de lame supérieure de la lame supérieure est passé devant un bord (15) de coupe de lame inférieure qui est constitué à la lame inférieure, un rebord (30) d'appui axial de la pièce intermédiaire qui est disposé de manière qu'il soit opposé du bord de coupe de la lame inférieure étant pourvu, dans le profil en section longitudinal, d'un radius d'appui pour l'appui d'un bord (22) de bande de feuille qui appartient à une bande qui a été tondue par l'engagement entre la lame supérieure et la lame inférieure,
    caractérisé en ce qu'
    entre le radius Rs d'appui au bord d'appui de la pièce intermédiaire et une partie (25) de vérin de la pièce intermédiaire, une partie de transition est constituée, ayant au moins un radius RÜ de transition, le radius de transition étant supérieur au radius d'appui.
  2. Dispositif de lame selon la revendication 1,
    caractérisé en ce que
    dans la transition entre une ligne (31) de contour de bord d'appui qui est définie par le radius Rs d'appui et une ligne (32) de contour de transition qui est définie par le radius RÜ de transition, un point extrême de la ligne de contour de bord d'appui et un point extrême de la ligne de contour de transition se rencontrent de telle manière qu'une tangente ts de bord d'appui qui est tracée au point extrême de la ligne de contour de bord d'appui et une tangente tÜ1 de contour de transition qui est tracée au point extrême de la ligne de contour de transition forment un angle αÜ1 de transition obtus au-dessus de la bague intermédiaire.
  3. Dispositif de lame selon la revendication 2,
    caractérisé en ce que
    l'angle αÜ1 de transition est supérieur à 160 degrés.
  4. Dispositif de lame selon la revendication 2,
    caractérisé en ce que
    l'angle αÜ1 de transition est supérieur à 170 degrés.
  5. Dispositif de lame selon l'une quelconque des revendications 2 à 4,
    caractérisé en ce que
    la ligne (31) de contour de bord d'appui et la ligne (32) de contour de transition sont constituées de manière qu'elles se rejoignent tangentiellement de manière continue.
  6. Dispositif de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    dans la transition entre la ligne (32) de contour de transition qui est définie par le radius de transition et une ligne (34) de contour de vérin qui est définie par la partie (25) de vérin, un point extrême de la ligne de contour de transition et un point extrême de la ligne de contour de vérin se rencontrent de telle manière qu'une tangente tÜ2 de contour de transition qui est tracée au point extrême de la ligne de contour de transition et la ligne de contour de vérin forment un angle αÜ2 de transition obtus au-dessus de la bague intermédiaire.
  7. Dispositif de lame selon la revendication 6,
    caractérisé en ce que
    l'angle αÜ2 de transition est supérieur à 160 degrés.
  8. Dispositif de lame selon la revendication 6,
    caractérisé en ce que
    l'angle αÜ2 de transition est supérieur à 170 degrés.
  9. Dispositif de lame selon l'une quelconque des revendications 6 à 8,
    caractérisé en ce que
    la ligne (32) de contour de transition et la ligne (34) de contour de vérin sont constituées de manière qu'elles se rejoignent tangentiellement de manière continue.
  10. Dispositif de lame selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le dispositif (28) de pièce intermédiaire comprend deux pièces (29) intermédiaires qui sont disposés de telle manière que les pièces intermédiaires sont disposés de manière qu'ils soient tournés l'un vers l'autre avec leurs parties (25) de vérin, respectivement constituant une extrémité axiale du dispositif de pièce intermédiaire avec leurs bords (17) d'appui.
  11. Dispositif de lame selon la revendication 10,
    caractérisé en ce que
    dans la transition entre les parties de vérin des pièces (29) intermédiaires qui sont disposées de manière qu'ils soient tournées les unes vers les autres, une pièce (43) espaceur est disposée.
  12. Dispositif de lame selon la revendication 11,
    caractérisé en ce que
    la pièce (43) espaceur a un contour de vérin.
  13. Dispositif de lame selon l'une quelconque des revendications 2 à 9,
    caractérisé en ce que
    la partie de transition a une ligne de contour de transition qui est définie par un ou plusieurs radius RÜ1, RÜ2 de transition et qui est composée de plusieurs lignes (32, 36) de contour de transition qui sont respectivement définies par un radius de transition, des points extrêmes des tronçons de transition, qui se rencontrent, ayant des tangentes tÜ2, tÜ3 qui forment un angle αÜ3 de transition obtus au-dessus de la pièce (35) intermédiaire.
  14. Dispositif de lame selon la revendication 13,
    caractérisé en ce que
    l'angle αÜ3 de transition est supérieur à 160 degrés.
  15. Dispositif de lame selon la revendication 13,
    caractérisé en ce que
    l'angle αÜ3 de transition est supérieur à 170 degrés.
  16. Dispositif de lame selon l'une quelconque des revendications 13 à 15,
    caractérisé en ce que
    les lignes (32, 36) de contour de transition sont constituées de manière qu'elles se rejoignent tangentiellement de manière continue.
EP20120194515 2011-12-06 2012-11-28 Agencement de mesure Not-in-force EP2602040B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201120108659 DE202011108659U1 (de) 2011-12-06 2011-12-06 Messeranordnung

Publications (2)

Publication Number Publication Date
EP2602040A1 EP2602040A1 (fr) 2013-06-12
EP2602040B1 true EP2602040B1 (fr) 2014-03-19

Family

ID=45596017

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120194515 Not-in-force EP2602040B1 (fr) 2011-12-06 2012-11-28 Agencement de mesure

Country Status (2)

Country Link
EP (1) EP2602040B1 (fr)
DE (1) DE202011108659U1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6474885B2 (ja) * 2014-07-22 2019-02-27 サンドビック ハイペリオン アクティエボラーグ 積層造形されるロータリー切削ユニット用アンビル
CN105171097B (zh) * 2015-06-30 2017-09-26 中冶华天工程技术有限公司 精轧螺纹钢冷剪剪切装置及剪切工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021121A1 (de) 2000-04-29 2001-11-15 Vaw Ver Aluminium Werke Ag Schmalschnittschneidverfahren
DE20312947U1 (de) * 2003-08-22 2004-04-08 Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile Rundmesser für Längsschneidemaschinen
JP2011212773A (ja) * 2010-03-31 2011-10-27 Fujifilm Corp 被裁断物の裁断装置及びインクジェット用紙の製造装置。

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DE202011108659U1 (de) 2012-01-18
EP2602040A1 (fr) 2013-06-12

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