EP0852981B1 - Appareil pour réduire la rugosité et l'usure de bandes multicouches - Google Patents

Appareil pour réduire la rugosité et l'usure de bandes multicouches Download PDF

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Publication number
EP0852981B1
EP0852981B1 EP98100183A EP98100183A EP0852981B1 EP 0852981 B1 EP0852981 B1 EP 0852981B1 EP 98100183 A EP98100183 A EP 98100183A EP 98100183 A EP98100183 A EP 98100183A EP 0852981 B1 EP0852981 B1 EP 0852981B1
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EP
European Patent Office
Prior art keywords
grooves
cylinder
comprised
circumference
approximately
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 - Lifetime
Application number
EP98100183A
Other languages
German (de)
English (en)
Other versions
EP0852981A1 (fr
Inventor
Manfred Dr. Schlatter
Manfred Dipl.-Ing. Schultheiss (Fh)
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.)
Emtec Magnetics GmbH
Original Assignee
Emtec Magnetics 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 Emtec Magnetics GmbH filed Critical Emtec Magnetics GmbH
Publication of EP0852981A1 publication Critical patent/EP0852981A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground

Definitions

  • the invention relates to a device for reducing the Roughness and the abrasion of layered tapes by means of a rotating polishing device with structural peripheral surface.
  • a layer with a binder e.g. from a softer Plastic is made of PVC.
  • Such layers are used in abrasion-sensitive devices operated, these tapes in contact with surfaces of stationary or moving parts of the device occur Deposits or deposits of abrasion malfunctions occur.
  • the tool consists of a basic body with several, strands of a grinding wire arranged next to and / or one above the other, the surface of which is natural or synthetic Abrasives coated, or with miniature teeth like a File cut is provided.
  • GB 445,512 describes' rotating cutting or polishing tools consisting of one Rotary body on its circumference filiform or fan-shaped grinding elements are arranged, the grinding elements themselves by extruding a mass, consisting of an elastic binder and evenly distributed in it abrasive particles is produced. Tools of this type are used to treat Suitable materials such as lead, aluminum, leather or wood. The invention therefore has the task of such abrasion of layered tapes, the surfaces melting into Beilby layers in the event of excessive heating, for use in the above characterized devices are determined.
  • the polishing member is a cylinder, whose height corresponds at least to the width of the layer tape and in particular is twice as large.
  • the circumferential structure of the cylinder can expediently consist essentially of there are coaxially arranged grooves that are also thread-like Can have shapes and also with a minimum increase of 0.16 mm can be arranged.
  • polishing member also axially arranged grooves on the cylinder circumference.
  • the axial grooves can have a V-shape, in particular a Includes angles of 112 °, but they can also have a sawtooth shape, in particular an angle of 63 °.
  • the number of coaxial grooves can be between about 1 and 20 and should be around 10 for best results.
  • the coaxial grooves can have a substantially V-shape and the webs in between can have a flank width of 0.1 mm on the Have cylinder peripheral surface.
  • the material of the cylinder circumference expediently consists of hardened Steel. However, it can also be advantageously made of oxide ceramic or a hard metal alloy.
  • the material of the cylinder circumference should have a hardness of at least 60 Rockwell.
  • embodiments of the device according to the invention are shown and described below with reference to this.
  • a polishing member is shown in Figures 1 and 2 as a polishing cylinder 5 and 5A with a central bore 6 or 6A for receiving a not shown axis of a rotary organ.
  • 5A are either coaxial Grooves 8 in the form of a ring or as coaxial, thread-like helical arranged grooves provided.
  • the cylinder 5 has the Diameter 2r, the cylinder 5A the diameter 2R to the outer peripheral surface, in which the tips of the webs 9 between the Grooves 8 lie.
  • the grooves 8 are e.g. in a known manner Turning or grinding applied to the cylinder circumference 7.
  • grooves 8 can be V-shaped have, e.g. with an angle ⁇ of about 40 °. But there are also other groove shapes can be used.
  • the tips of the webs 9 are after producing the grooves 8 with suitable grinding devices ground so that they still have a defined "flank width" of about 0.1 mm and thus also two polishing edges instead previously only one.
  • axial grooves 10 can also be provided from the circumference of the cylinder 5 or 5A.
  • the groove shapes are as follows: V-shape for grooves 10A with an angle ⁇ of approximately 112 °, sawtooth shape for grooves 10B with an angle ⁇ of approximately 63 ° and rectangular shape for grooves 10C with an angle ⁇ of approximately 3.6 °.
  • Other groove shapes within the meaning of the invention are also suitable for detaching and absorbing the abrasion from the layer tape.
  • the grooves 10 are produced by sawing, milling, grinding or also by spark erosion processes or EDM (Electrical Discharge Milling) processes.
  • the surface of the layered tape is in heated to a thickness of a few molecular layers so strongly, that the roughness tips melt and in doughy condition in the valleys are smeared in, the surface being smooth and becomes shiny.
  • This enamel layer is referred to as the "Beilby layer”. It is essential that no material is obtained by polishing is removed, neither in the form of chips or other Particles, in another form. This is surprisingly an occurrence and deposition of abrasion with its above-mentioned Disadvantages consciously avoidable.
  • the contact angle between the tape and cylinder circumference and the belt tension optimized during belt movement become.
  • the abrasion of layer tapes could be increased by a factor of 10 using the device according to the invention can be reduced with a small device, Manufacturing and maintenance effort.
  • a polisher to reduce roughness and Abrasion from layered strips consists of a cylinder with coaxial Grooves or grooves of various shapes, which are advantageously thread-like are. Axial grooves can also be provided his.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Laminated Bodies (AREA)

Claims (13)

  1. Appareil pour la réduction de la rugosité et de l'usure par l'abrasion des bandes à couche, dont les surfaces forment des couches Beilby quand elles sont échauffées fortement, par l'intermédiaire d'un dispositif de polissage tournant ayant une surface de circonférence structurée, qui a une structure semblable à un filet (8) pourvue sur la circonférence (7) du dispositif de polissage (5, 5A).
  2. Appareil selon la revendication 1, caractérisé par un cylindre comme dispositif de polissage (5, 5A), dont la hauteur correspond au moins environ à la largeur de la bande à couche et fait en particulier le double.
  3. Appareil selon la revendication 1 ou 2, caractérisé en ce que la structure est constituée pour l'essentiel de rayons (8) arrangés de façon coaxiale.
  4. Appareil selon revendication 1 ou 2, caractérisé en ce que la structure est constituée de rayons (8) semblable à un filet avec un pas minimum de 0.16 mm.
  5. Appareil selon la revendication 3 ou 4, caractérisé en ce que des rayons arrangés de façon axiale (10) sont pourvus sur la circonférence du cylindre (7).
  6. Appareil selon la revendication 5, caractérisé en ce que les rayons axiales (10) ont une forme en V, qui incorpore en particulier un angle (α) d'environ 112°.
  7. Appareil selon la revendication 5, caractérisé en ce que les rayons axiales ont une forme en dents de scie, qui incorpore en particulier un angle (δ) d'environ 63°.
  8. Appareil selon revendication 3 ou 4, caractérisé en ce que le nombre de rayons coaxiales (8) est environ 1 à 20, en particulier 10.
  9. Appareil selon revendication 3 ou 4, caractérisé en ce que les rayons coaxiales (8) ont pour l'essentiel une forme en V et la largeur de flanc des moulures (9) sur la surface de circonférence (7) du cylindre (5, 5A) entre les rayons coaxiales (8) fait environ 0.1 mm.
  10. Appareil selon la revendication 1 et l'une quelconque des revendications 2 à 10, caractérisé en ce que le matériau de la circonférence de cylindre (7) est constitué d'acier trempé.
  11. Appareil selon la revendication 1 ou l'une quelconque des revendications 2 à 10, caractérisé en ce que le matériau de la circonférence de cylindre (7) est constitué d'oxyde céramique.
  12. Appareil selon la revendication 1 ou l'une quelconque des revendications 2 à 10, caractérisé en ce que le matériau de la circonférence de cylindre (7) est constitué d'un alliage de métal dur.
  13. Appareil selon la revendication 10 à 12, caractérisé en ce que le matériau de la circonférence de cylindre (7) a une dureté d'au moins 60 Rockwell.
EP98100183A 1997-01-13 1998-01-08 Appareil pour réduire la rugosité et l'usure de bandes multicouches Expired - Lifetime EP0852981B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29700458U 1997-01-13
DE29700458U DE29700458U1 (de) 1997-01-13 1997-01-13 Vorrichtung zum Verringern der Rauhigkeit und des Abriebs von Schichtbändern

Publications (2)

Publication Number Publication Date
EP0852981A1 EP0852981A1 (fr) 1998-07-15
EP0852981B1 true EP0852981B1 (fr) 2004-11-17

Family

ID=8034463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100183A Expired - Lifetime EP0852981B1 (fr) 1997-01-13 1998-01-08 Appareil pour réduire la rugosité et l'usure de bandes multicouches

Country Status (6)

Country Link
US (1) US6416400B1 (fr)
EP (1) EP0852981B1 (fr)
JP (1) JPH10296519A (fr)
KR (1) KR19980070380A (fr)
DE (2) DE29700458U1 (fr)
SG (1) SG55450A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113579363B (zh) * 2021-09-01 2022-05-03 福建省闽铝轻量化汽车制造有限公司 一种多层腹板的加工方法及***

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR492132A (fr) 1918-08-19 1919-06-28 Joseph Henry Woodington Perfectionnements apportés à la fabrication des roues abrasives
GB445512A (en) 1934-08-20 1936-04-14 Degussa Improvements in and relating to grinding or abrading tools
CH390040A (de) * 1961-07-24 1965-03-31 Karlstad Mekaniska Ab Schleifstein für Schleifung von Holzstoff
US3468583A (en) * 1967-06-30 1969-09-23 Christensen Diamond Prod Co Diamond milling cutters
US3510990A (en) * 1967-08-21 1970-05-12 Engis Equipment Co Tapered reamer
US3629918A (en) 1969-09-22 1971-12-28 Wallace Murray Corp File
US3715787A (en) 1970-11-25 1973-02-13 A Hudson Kinetic energy device for forming work pieces
US4208843A (en) * 1977-08-27 1980-06-24 Ngk Insulators, Ltd. Grinding attachment for porcelain bodies
US4187754A (en) * 1978-09-21 1980-02-12 Beaty Loma B Noise dampened rotary saw blade
CA1161291A (fr) 1981-02-09 1984-01-31 William H. Schafer Pierre segmentaire de broyage
DE3332085A1 (de) 1983-09-06 1985-03-21 Festo KG, 7300 Esslingen Werkzeug zum aufrauhen, abtragen oder zerspanen
JPS6190876A (ja) * 1984-10-08 1986-05-09 Hiroshi Ishizuka 超砥粒電着丸鋸
JPH0687302B2 (ja) * 1986-10-14 1994-11-02 富士写真フイルム株式会社 磁気記録媒体の製法
JPH0562174A (ja) * 1991-09-05 1993-03-12 Sony Corp 磁気記録媒体の表面処理装置

Also Published As

Publication number Publication date
KR19980070380A (ko) 1998-10-26
DE29700458U1 (de) 1997-08-14
DE59812255D1 (de) 2004-12-23
JPH10296519A (ja) 1998-11-10
SG55450A1 (en) 1998-12-21
US6416400B1 (en) 2002-07-09
EP0852981A1 (fr) 1998-07-15

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