EP0362573A2 - Couteau pour trancher des matériaux - Google Patents

Couteau pour trancher des matériaux Download PDF

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Publication number
EP0362573A2
EP0362573A2 EP89116633A EP89116633A EP0362573A2 EP 0362573 A2 EP0362573 A2 EP 0362573A2 EP 89116633 A EP89116633 A EP 89116633A EP 89116633 A EP89116633 A EP 89116633A EP 0362573 A2 EP0362573 A2 EP 0362573A2
Authority
EP
European Patent Office
Prior art keywords
cutting edge
section
radius
knife
increase
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.)
Granted
Application number
EP89116633A
Other languages
German (de)
English (en)
Other versions
EP0362573B1 (fr
EP0362573A3 (fr
Inventor
Uwe Reifenhäuser
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0362573A2 publication Critical patent/EP0362573A2/fr
Publication of EP0362573A3 publication Critical patent/EP0362573A3/fr
Application granted granted Critical
Publication of EP0362573B1 publication Critical patent/EP0362573B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B26D1/0006—Cutting members therefor
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge
    • 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
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations

Definitions

  • the invention relates to a knife for cutting goods that tend to undergo elastic and / or plastic deformation when a certain cutting pressure is exceeded, such as sausage or meat products to be cut into slices.
  • the knife is provided with a spiral cutting edge and is arranged on a shaft oriented perpendicular to its plane. The knife is driven by this about an axis of rotation essentially parallel to a longitudinal axis of the material.
  • Knives of this type with a cutting edge running according to an Archimedean or logarithmic curve are generally known and make it possible, for example, to advance a sausage strand in the longitudinal direction step by step by the thickness of a slice to be cut off, the feed stroke corresponding to the knife speed and the feed taking place within a period of one knife rotation, during which the knife is generally outside of the cross-section occupied by the sausage skein, so that a feed obstacle can be excluded by a knife part.
  • the known knives with a cutting edge course according to an Archimedean spiral lead to an equally constant feed speed of the cutting edge through the good at a constant distance between the axis of rotation of the knife and the central axis of the good to be cut and with a drive-related constant angular velocity of the knife.
  • a high feed rate of the cutting edge has a negative effect in these cutting phases insofar as the cutting material is considerably deformed by the pressure of the cutting edge, so that disks with a very irregular geometry are incurred, in particular the thickness of the panes varies in their edge regions and there are sometimes wedge-shaped panes or panes with tab-shaped marginal strips.
  • the invention has for its object to design a knife of the type described in such a way that the feed speed of the respectively active section of the cutting edge is adapted to the particular tendency of the material to be cut to deform at a constant knife speed, i.e. H. the size of the feed rate should be increased or reduced in inverse proportion to the tendency of the material to deform.
  • the feed rate at the start of a cut can be kept correspondingly low with a considerable tendency to deform the material, then increased in accordance with the reduced tendency to deform the material, and finally to be reduced again towards the end of the cut with a further increasing tendency to deform the material.
  • the feed speed of the cutting edge is at a during the first and third section critical with regard to deformation constant small size adjustable and during the third section that is not critical with regard to deformation, the feed speed of the cutting edge can be accelerated to a size by which time losses during the first and third sections can be more than compensated.
  • a high productivity of a cutting device, which is equipped with the knife according to the invention, can therefore be guaranteed without impairing the shape accuracy of the discs cut from a sensitive good by overall high average cutting speeds.
  • a further embodiment of the invention provides that the radius increase over the first section of the cutting edge is greater than the radius increase over the third section of the cutting edge, so that the constant feed speed of the cutting edge of the first section is greater than that of the third section.
  • the feed speed of the cutting edge can be optimized for each section, so that a corresponding increase in the cutting performance while maintaining the shape accuracy of the resulting disks can easily be achieved.
  • a particularly advantageous subdivision of a cutting edge takes place according to a further embodiment of the invention in such a way that the first section extends over more than 45 ° and less than 90 °, the second section extends over more than 90 ° and less than 180 ° and the third section in turn extends over more than 45 ° and less than 90 °.
  • an embodiment of the invention provides that the difference between the maximum radius of the third section of the cutting edge and the minimum radius of the first section of the cutting edge is adapted to the maximum diameter of the disks to be cut.
  • FIG. 1 an exemplary embodiment of a knife according to the invention is shown in plan view in FIG. 1 and the feed speed of the respectively active cutting edge region of the knife as a time / angle function is shown graphically in FIG. 2.
  • the knife 1 fastened on a shaft, not shown, is provided over 270 ° with a spiral cutting edge 2. This is divided into a first section 4, a second section 5 and a third section 6 in the direction of rotation of the knife 1 indicated by an arrow 3.
  • the radius increase is smaller than the radius increase in the second section 5 arranged therebetween.
  • the different radius increase occurs because the cutting edge 2 over section 4 after an Archimedean spiral, over section 5 after a cosine spiral and over the section 6 again after an Archimedean spiral.
  • the knife 1 in section 4 of the cutting edge 2 extending over a total of 270 ° with a smallest radius of 44 mm and a largest radius of 58 mm and in section 6 of the cutting edge 2 with a smallest radius of 137 mm and a largest radius from 150 mm designed, which consequently results in a smallest radius of 58 mm and a largest radius of 137 mm for the cutting edge 2 of section 5, the curve 7 shown in solid lines in FIG. 2 arises at a knife speed of 180 rpm, the one shows a maximum gate feed speed of 300 mm / s and a maximum gate feed speed of 100 mm / s.
  • the feed rate is shown in mm / s on the ordinate and the cutting time in s or the angle of rotation of the knife 1 in degrees on the abscissa.
  • the cut is made over the first horizontal part 7.1 at a constant feed speed of the cutting edge 2 according to an Archimedean spiral.
  • part 7.2 which runs according to a cosine spiral, whose increase factor, which can be varied between 1 and 99 in FIG. 2, is approximately 50 and leads to a maximum feed rate of 1954.55 mm / s.
  • curve 7 merges into part 7.3 again shows a constant feed speed of the cutting edge 2, which is, however, lower than that of the first part 7.1 and only coincides with it insofar as the part 7.3 runs according to an Archimedean spiral.
  • a dashed curve 8 and a dashed curve 9 are shown in FIG. 2, which result from conventional knife designs in which the cutting edge extends over its entire extent according to an Archimedean spiral (8) or according to a logarithmic spiral (9). runs.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food-Manufacturing Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Dry Shavers And Clippers (AREA)
EP89116633A 1988-10-03 1989-09-08 Couteau pour trancher des matériaux Expired - Lifetime EP0362573B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3833596A DE3833596A1 (de) 1988-10-03 1988-10-03 Messer zum schneiden von gut in scheiben
DE3833596 1988-10-03

Publications (3)

Publication Number Publication Date
EP0362573A2 true EP0362573A2 (fr) 1990-04-11
EP0362573A3 EP0362573A3 (fr) 1991-03-27
EP0362573B1 EP0362573B1 (fr) 1994-04-13

Family

ID=6364282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89116633A Expired - Lifetime EP0362573B1 (fr) 1988-10-03 1989-09-08 Couteau pour trancher des matériaux

Country Status (3)

Country Link
EP (1) EP0362573B1 (fr)
DE (2) DE3833596A1 (fr)
ES (1) ES2051333T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661634A1 (fr) * 1990-05-04 1991-11-08 Jacques Yvon Couteau destine a trancher les longes de porc en cotelettes.
EP0738566A3 (fr) * 1995-04-19 1996-10-30 BIFORCE Anstalt Dispositif pour trancher en forme de disque des produits alimentaires au moyen d'un couteau rotatif en forme de faucille
EP1190820A3 (fr) * 2000-09-25 2004-11-03 CFS GmbH Kempten Couteau en spirale
CN110228086A (zh) * 2019-07-05 2019-09-13 李道临 一种蔬菜切丝机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4142937C1 (fr) * 1991-12-24 1992-12-24 Uwe 5232 Flammersfeld De Reifenhaeuser
DE102015202199A1 (de) * 2015-02-06 2016-08-25 BSH Hausgeräte GmbH Schneidscheibe

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE148592C (fr) *
US1957623A (en) * 1931-11-21 1934-05-08 Ind Patents Corp Slicing machine
DE2129539C3 (de) * 1971-06-15 1973-11-15 Ernst 6102 Pfungstadt Schertler Messer fur Fleischkutter
US3910143A (en) * 1973-08-31 1975-10-07 Itt Adjustable slicing apparatus
US4043238A (en) * 1976-04-21 1977-08-23 Sanders Associates, Inc. Cable cutter
DE3635572C1 (en) * 1986-10-20 1988-02-25 Toni Reifenhaeuser Knife for processing a rod of meat

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2661634A1 (fr) * 1990-05-04 1991-11-08 Jacques Yvon Couteau destine a trancher les longes de porc en cotelettes.
EP0738566A3 (fr) * 1995-04-19 1996-10-30 BIFORCE Anstalt Dispositif pour trancher en forme de disque des produits alimentaires au moyen d'un couteau rotatif en forme de faucille
EP1190820A3 (fr) * 2000-09-25 2004-11-03 CFS GmbH Kempten Couteau en spirale
CN110228086A (zh) * 2019-07-05 2019-09-13 李道临 一种蔬菜切丝机
CN110228086B (zh) * 2019-07-05 2023-11-24 李道临 一种蔬菜切丝机

Also Published As

Publication number Publication date
EP0362573B1 (fr) 1994-04-13
DE58907450D1 (de) 1994-05-19
DE3833596C2 (fr) 1990-07-12
DE3833596A1 (de) 1990-04-05
EP0362573A3 (fr) 1991-03-27
ES2051333T3 (es) 1994-06-16

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