EP2660021B1 - Outil de coupe - Google Patents

Outil de coupe Download PDF

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Publication number
EP2660021B1
EP2660021B1 EP13163331.5A EP13163331A EP2660021B1 EP 2660021 B1 EP2660021 B1 EP 2660021B1 EP 13163331 A EP13163331 A EP 13163331A EP 2660021 B1 EP2660021 B1 EP 2660021B1
Authority
EP
European Patent Office
Prior art keywords
blade
area
cutting
cutting tool
tool according
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
EP13163331.5A
Other languages
German (de)
English (en)
Other versions
EP2660021A1 (fr
Inventor
Daniel Kämmerling-Essmann
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.)
ESSMANN AND SCHAEFER GmbH and Co KG
Original Assignee
ESSMANN AND SCHAEFER 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 ESSMANN AND SCHAEFER GmbH and Co KG filed Critical ESSMANN AND SCHAEFER GmbH and Co KG
Publication of EP2660021A1 publication Critical patent/EP2660021A1/fr
Application granted granted Critical
Publication of EP2660021B1 publication Critical patent/EP2660021B1/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
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4409—Cutters therefor; Dies therefor having die balancing or compensating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4436—Materials or surface treatments therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4463—Methods and devices for rule setting, fixation, preparing cutting dies

Definitions

  • the present invention relates according to the preamble of independent claim 1, a cutting tool for pressure cutting in particular in the paper and cardboard industry, consisting of a band-shaped blade made of steel, at one longitudinal edge a hardened cutting area with a cutting edge and at the other longitudinal edge a contact area with a Anückücken for supporting the blade in a receiving slot of a plate-shaped tool carrier, wherein the blade between the cutting area and the abutment area has a strip-shaped longitudinal direction in the longitudinal deformation zone such that the blade during the pressure cut in the blade-transverse direction by applying a compressive force with changing its blade height is compressible.
  • the deformation zone can be formed by a blade area with a blade-like cross-section reduced in diameter.
  • Such cutting tools are used for example in the cardboard industry to produce blanks for cartons or boxes from a cardboard or cardboard material. This is usually done by means of punching devices, which receive the blade-shaped cutting tools so that the present on a blade longitudinal side cutting perpendicular to the material plane penetrates into the material. As a result, the blanks on the one hand cut and on the other hand also scratched and / or compressed to form fold lines by only a partial cutting, the fold lines allow unfolding of the blank.
  • the cutting tools which may be bent in some areas to form the Stanfordstanzenden mold, are held in the tool carrier, that they are exactly in one plane with the cutting Otherwise, the material can not be reliably cut or scratched evenly at each point. Therefore, it has hitherto been necessary to accurately trim the cutting tools by area-by-area placement with compensating strips. This dressing was associated with a great deal of time and effort.
  • the closest generic document DE 199 31 216 C1 also describes a band-shaped punching knife for mounting in a slot of a knife carrier.
  • This known punching knife consists of strip steel with a hardened edge formed as a cutting edge, with a rear abutment surface opposite the hardened cutting edge and with a cross-section reduced area forming a deformation zone.
  • the deformation zone should be arranged at such a distance from the rear contact surface, that it is in the inserted into the slot of the carrier state in the region of a slot extension, which usually arises when the slot by a laser processing in the rule out Wood existing, plate-shaped tool carrier is generated.
  • a guide of the punching blade against lateral tilting is to be achieved by the punching knife is guided in the region of the two end, opposite edges of the receiving slot of the slot walls.
  • a lateral guide is not given anyway because of the slot extension, so that the cross-sectional reduction of the blade does not adversely affect.
  • the present invention is based on the object to further improve such a cutting blade of the generic type in terms of its performance characteristics and / or in terms of its manufacturability.
  • HRC Rockwell hardness according to scale C.
  • the contact area has a hardness corresponding to the hardness of the cutting area
  • the hardness both in the region of the cutting edge and in the region of the contact back in the range of at least 50 HRC to for example, a maximum of 70 HRC, but the concrete hardness values of the cutting area on the one hand and the contact area on the other hand may differ if they are each at least 50 HRC. This means that between 50 HRC and 70 HRC, for example, differences of up to 20 HRC are possible ,
  • the deformation zone is formed by a blade region with a reduced blade cross-section
  • the reduced blade cross-section in the region of the deformation zone is formed by a scraping process.
  • the term "cockroaches” is to be understood as a drawing process in which the band-shaped material of the blade is moved in the longitudinal direction, ie pulled relative to a machining tool, in order to achieve the desired cross-sectional reduction by cutting material removal, as in a rotary turning process.
  • the strip material can be pressed against a so-called drawing template, which has a shape corresponding to the desired contour and thereby causes the machining.
  • This measure according to the invention leads to a cost-effective production by simple and fast processing.
  • the production by cockroaches can be recognized on the finished product by fine elongation depths in cross-section reduced area.
  • the blade - apart from the hardened cutting area and possibly the hardened contact area as well as apart from the optionally reduced hardness in the region of the deformation zone - has a basic hardness in the range of 25 HRC to 45 HRC.
  • the hardness of the deformation zone which is preferably reduced by 5 to 10 HRC, is in the range from 15 HRC to 40 HRC.
  • a cutting tool 1 consists of a strip-shaped blade 2 made of steel, which at one longitudinal edge has a hardened cutting region 4 with a cutting edge 4a and at the other, opposite longitudinal edge a contact region 6 with a Anückücken 6a for supporting the blade 2 in a receiving slot 8 of a plate-shaped tool carrier 10, see Fig. 8 ,
  • the blade 2 between the cutting region 4 and the abutment region 6 at least one deformation zone 12 extending in the form of a strip in the longitudinal direction of the blade such that the blade 2 in an application for pressure cutting - see in particular Fig. 8 - In blade-transverse direction by applying a compressive force F under elastic and / or plastic change their blade height H - see Fig. 1 and 4 - is compressible.
  • a compressive force F under elastic and / or plastic change their blade height H - see Fig. 1 and 4 - is compressible.
  • the abutment region 6 has a hardness corresponding to the hardness of the hardened cutting region 4.
  • the hardness of both the cutting area 4 and the contact area 6 is at least 50 HRC.
  • the maximum achievable hardness is up to 70 HRC.
  • the hardness of the cutting area 4 and on the other hand the hardness of the contact area 6 each in the range of 50 HRC to 70 HRC, but may differ within this range.
  • the deformation zone 12 is formed by a portion of the blade 2, which has a compared to the hardness of the blade 2 by 5 HRC to 10 HRC reduced hardness.
  • this partial region of the blade 2 forming the deformation zone 12 has an unchanged cross-section, ie in particular an unchanged thickness D of the blade 2.
  • a basic hardness of the blade 2 in its respective regions adjacent to the deformation zone 12 is in the range of 25 HRC to 45 HRC.
  • the reduced hardness of the deformation zone 12 results in a value which is in the range of 15 HRC to 40 HRC.
  • the blade 2 in this area can have a waist-like reduced blade cross section, to which the illustrations in FIG Fig. 4, 5 and 8th is referenced.
  • this cross-sectional reduction can be formed in particular by a scraping process.
  • the reduced blade cross-section of the deformation zone 12 is preferably formed by symmetrical recesses 14 of the blade 2 on both sides, each recess 14 being delimited by flanks 16 arranged at an angle, in particular at right angles to the blade plane, and having an in particular slightly concave curved base surface 18.
  • the blade 2 may have a total blade height H in the range of 15 to 100 mm, preferably 20 to 25 mm, in particular 23.8 mm, and a blade thickness D in the range of 0.4 to 2.1 mm.
  • the hardened cutting area 4 as well as the hardened contact area 6 each have a height h1 of up to 1 mm.
  • the deformation zone 12 preferably has a height h2 in the range of 8 to 10 mm, in particular 9 mm. Between the deformation zone 12 and the cutting area 4, a blade area 20 with a height h3 in the range of 8 to 8.5 mm, in particular 8.3 mm, is arranged.
  • a blade region 22 is arranged, which has a height h4 in the range of 1 to 4.5 mm.
  • the blade 2 has the previously defined basic hardness of 25 HRC to 45 HRC.
  • the cutting edge 4a As far as the cutting area 4 is concerned, in principle any desired embodiments are possible for forming the cutting edge 4a.
  • the cutting area 4 to form the cutting edge 4a to a longitudinal center plane of the blade 2, not shown, symmetrical chamfers 24, according to Fig. 1 and 2 as simple chamfer or according to 6 and 7 may be formed as facets with two double felts.
  • the chamfers 24 may extend over a partial area of the height h1 of the cutting area 4 or according to FIG Fig. 7 over at least the entire height h1.
  • the abutment region 6 may have chamfers 26 in the outer edge region, so that the surface of the abutment back 6a is correspondingly narrower than the thickness D of the blade 2.
  • the deformation zone 12 is disposed in a region of the blade 2, which sits for the pressure cut within the receiving slot 8 of the tool carrier 10, in particular in the region of a slot extension 28 existing there
  • the Anückücken 6a is based on a receiving slot 8 back covering steel plate 30 from.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Studio Devices (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Claims (14)

  1. Outil de coupe (1) destiné à la coupe sous pression notamment dans les secteurs de la papeterie et des cartons, constitué d'une lame (2) en forme de bande en acier, laquelle possède sur un côté long une zone de coupe (4) trempée avec un tranchant (4a) et de l'autre côté long une zone d'appui (6) dotée d'un dos d'appui (6a) destiné à soutenir la lame (2) dans une fente d'accueil (8) d'un porte-outil (10), la lame (2) possédant entre la zone de coupe (4) et la zone d'appui (6) une zone de déformation (12) qui s'étend en forme de bande dans le sens longitudinal de la lame, de telle sorte que la lame (2), lors d'une coupe sous pression dans le sens transversal de la lame, peut être déformée par écrasement en modifiant sa hauteur (H) en étant soumise à une force de pression (F), caractérisé en ce que la zone d'appui (6) est trempée et présente une dureté correspondant à la dureté de la zone de coupe (4), c'est-à-dire une dureté minimale de 50 HRC, comme la zone de coupe (4).
  2. Outil de coupe selon la revendication 1, avec lequel la zone de déformation (12) est formée par une zone de la lame (2) ayant une section transversale de lame réduite,
    caractérisé en ce que la section transversale de lame réduite dans la zone de la zone de déformation (12) est formée par une opération d'arasage.
  3. Outil de coupe selon la revendication 1 ou 2, caractérisé en ce que la zone de déformation (12) présente par rapport à la dureté de la lame (2) une dureté réduite de 5 HRC à 10 HRC, laquelle est notamment comprise dans la plage de 15 HRC à 40 HRC.
  4. Outil de coupe selon la revendication 3, caractérisé en ce que la lame (2) possède dans la zone de la zone de déformation (12) une section transversale de lame réduite, notamment formée par une opération d'arasage.
  5. Outil de coupe selon l'une des revendications 2 à 4,
    caractérisé en ce que la section transversale de lame réduite de la zone de déformation (12) est formée par des évidements (14) bilatéraux symétriques de la lame (2), chaque évidement (14) étant délimité par des flancs (16) anguleux, notamment disposés perpendiculairement au plan de la lame (2), et possède une surface de base (18) bombée notamment concave.
  6. Outil de coupe selon l'une des revendications 1 à 5,
    caractérisé en ce que la lame (2) présente respectivement une dureté de base dans la plage de 25 HRC à 45 HRC respectivement jouxtant la zone de coupe (4) trempée d'un côté et la zone d'appui (6) trempée.
  7. Outil de coupe selon l'une des revendications 1 à 6,
    caractérisé en ce que la lame (2) présente une hauteur de lame totale (H) dans la plage de 15 à 100 mm, de préférence de 20 à 25 mm, notamment de 23,8 mm, ainsi qu'une épaisseur de lame (D) dans la plage de 0,4 à 2,1 mm.
  8. Outil de coupe selon l'une des revendications 1 à 7,
    caractérisé en ce que la zone de coupe (4) trempée et la zone d'appui (6) trempée présentent respectivement une hauteur (h1) maximale de 1 mm.
  9. Outil de coupe selon l'une des revendications 1 à 8,
    caractérisé en ce que la zone de déformation (12) présente une hauteur (h2) dans la plage de 8 à 10 mm.
  10. Outil de coupe selon l'une des revendications 1 à 9,
    caractérisé en ce qu'entre la zone de déformation (12) et la zone de coupe (4) est disposée une zone de lame (20) ayant une hauteur (h3) dans la plage de 8 à 8,5 mm, notamment de 8,3 mm.
  11. Outil de coupe selon l'une des revendications 1 à 10,
    caractérisé en ce qu'entre la zone de déformation (12) et la zone d'appui (6) est disposée une zone de lame (22) ayant une hauteur (h4) dans la plage de 1 à 4,5 mm.
  12. Outil de coupe selon l'une des revendications 1 à 11,
    caractérisé en ce que la zone de coupe (4) possède des biseaux (24) pour former le tranchant (4a), notamment sous la forme de biseaux symétriques simples ou de facettes avec biseaux symétriques doubles.
  13. Outil de coupe selon l'une des revendications 1 à 12,
    caractérisé en ce que la zone d'appui (6) possède des biseautages (26) dans la zone de l'arête extérieure.
  14. Outil de coupe selon l'une des revendications 1 à 13,
    caractérisé en ce que la zone de déformation (12) est disposée dans une zone de la lame (2) qui, pour la coupe sous pression, repose à l'intérieur d'une fente d'accueil (8) d'un porte-outil (10), et ce notamment dans la zone d'un élargissement de fente (28) qui s'y trouve.
EP13163331.5A 2012-05-04 2013-04-11 Outil de coupe Not-in-force EP2660021B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201210103939 DE102012103939A1 (de) 2012-05-04 2012-05-04 Schneidwerkzeug

Publications (2)

Publication Number Publication Date
EP2660021A1 EP2660021A1 (fr) 2013-11-06
EP2660021B1 true EP2660021B1 (fr) 2016-04-06

Family

ID=48326091

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13163331.5A Not-in-force EP2660021B1 (fr) 2012-05-04 2013-04-11 Outil de coupe

Country Status (3)

Country Link
EP (1) EP2660021B1 (fr)
DE (2) DE102012103939A1 (fr)
ES (1) ES2573279T3 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1150147A (en) * 1912-12-02 1915-08-17 United Shoe Machinery Ab Cutting-die.
DE3135980C1 (de) 1981-09-11 1983-06-01 Karl Marbach Gmbh & Co, 7100 Heilbronn Bandstahlstanzwerkzeug mit mindestens einem eine Schneide aufweisenden bandförmigen Stanzmesser
DE19931216C1 (de) 1999-07-06 2000-11-16 Rolf Karl Stursberg Bandförmiges Stanzmesser zur Halterung in einem Schlitz eines Messerträgers
DE202010016582U1 (de) * 2010-12-14 2012-03-15 Tr-Packaging System Schneidlinie

Also Published As

Publication number Publication date
DE102012103939A1 (de) 2013-11-07
EP2660021A1 (fr) 2013-11-06
ES2573279T9 (es) 2016-07-04
DE202013101567U1 (de) 2013-04-23
ES2573279T3 (es) 2016-06-07

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