EP1153675A2 - Matériaux en feuilles pourvus de structures - Google Patents

Matériaux en feuilles pourvus de structures Download PDF

Info

Publication number
EP1153675A2
EP1153675A2 EP01108886A EP01108886A EP1153675A2 EP 1153675 A2 EP1153675 A2 EP 1153675A2 EP 01108886 A EP01108886 A EP 01108886A EP 01108886 A EP01108886 A EP 01108886A EP 1153675 A2 EP1153675 A2 EP 1153675A2
Authority
EP
European Patent Office
Prior art keywords
structures
strip
punched
material strips
edge
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
EP01108886A
Other languages
German (de)
English (en)
Other versions
EP1153675A3 (fr
EP1153675B1 (fr
Inventor
Alfred Bauer
Horst Hartmann
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.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus 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 WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Publication of EP1153675A2 publication Critical patent/EP1153675A2/fr
Publication of EP1153675A3 publication Critical patent/EP1153675A3/fr
Application granted granted Critical
Publication of EP1153675B1 publication Critical patent/EP1153675B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work

Definitions

  • the invention relates to a material strip having structures with from the plane of the strip outstanding punching structures.
  • the invention further relates to a strip composite as well as the use of the material strips.
  • Such strips of material are relatively difficult to transport because, for example, intentionally Punch structures that protrude from the strip plane are not printed back into the plane during transport may be. This can be done relatively costly by intermediate layers, that serve as spacers.
  • the invention has for its object to provide a simple and safe way stack the material strips characterized at the beginning without damage.
  • stamping structures have the shape of a polygon, with an edge whose Length is less than two adjacent sides, with the strip of material connected to that the two adjacent sides at their ends facing away from the edge by two more Sides are connected to each other, the sides being symmetrical to a perpendicular the edge are arranged and each an angle ⁇ of about 20 ° to 80 ° to the perpendicular form and wherein punch openings formed by the punch structures in the material strip one cut free parallel to the sides adjacent to the edge Have slot.
  • the punching structures serve as spacers and at the same time as fixation or centering several stripes against each other.
  • the angle ⁇ is advantageously approximately 40 ° to 60 °.
  • Another angle ⁇ between the perpendicular bisector on the edge and another Side is about 30 ° to 85 °, preferably 65 ° to 75 °. This allows relatively large distances between the strips can be achieved with precise positioning.
  • the width of the cut slots has a ratio to the width the punching structure from about 1:10 to 1:40, the width of the cut slots is measured parallel to their longitudinal edges and the width of the punching structure is perpendicular to the perpendicular to the edge.
  • the stamping structures an angle ⁇ of approximately 10 ° to 30 °, preferably approximately 20 °, to the vertical on the strip plane form. With the specified dimensions, optimal stacking behavior is guaranteed.
  • the strip of material can be formed from metal.
  • the punched structures are symmetrical to the central axis of the Are arranged material strip, and that in the material strip further structures, in particular punched structures are arranged.
  • the strip composite formed from the material strips according to the invention is according to the Invention characterized in that the punched structures of a strip of material in punched openings of an adjacent strip of material, preferably that the others Sides of the stamping structures of a strip of material each on a boundary edge of the cut slots of the punching structures of an adjacent punching strip are supported are.
  • the material strip having structures can be used for the production of in particular metallic lead frames can be used. Also a use for lead frames from other conductive materials is conceivable and provided according to the invention.
  • a strip of material 1 made of copper is shown.
  • punching structures 2 in evenly spaced along the two longitudinal edges of the material strip 1.
  • Further punched structures 3 can be arranged on the material strip. This can serve as a means of positioning the material strips in further processing, however, they can also be functional in character from a strip of material have produced lead frame.
  • FIG. 2 shows a punch structure 2 protruding from the strip plane.
  • the punch structure 2 is connected at its edge 4 to the material strip 1.
  • the remaining pages, that is to say the Edge 4 adjacent sides 5 and the other sides 6 connected to them are symmetrical arranged to a perpendicular to the edge 4.
  • the ratio of the width A of the cut slots 7 to the width B of the stamping structure 2 is approximately 1:22
  • the angle ⁇ between the adjacent ones Sides 5 and the perpendicular to the edge 4 about 50 °
  • the angle ⁇ between another side 6 and the perpendicular bisector is about 70 °.
  • a composite strip of two strips of material 1 is shown in a side view.
  • the stamping structures 2 form an angle ⁇ of approximately 20 ° to the vertical on the Strip plane.
  • the punch structures 2 of the lower material strip 1 engage in punch openings 8 of the upper strip of material 1.
  • the other edges 6 of the stamping structures lie here 2 of the lower strip of material 1 on a boundary edge of the cut Slots 7 of the punch openings 8 of the adjacent material strip 1.
  • vertical view (direction A) is this superimposed section shown in Fig. 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Laminated Bodies (AREA)
  • Decoration Of Textiles (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Sliding-Contact Bearings (AREA)
EP01108886A 2000-05-09 2001-04-10 Matériaux en feuilles pourvus de structures Expired - Lifetime EP1153675B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10022102A DE10022102C1 (de) 2000-05-09 2000-05-09 Strukturen aufweisender Materialstreifen
DE10022102 2000-05-09

Publications (3)

Publication Number Publication Date
EP1153675A2 true EP1153675A2 (fr) 2001-11-14
EP1153675A3 EP1153675A3 (fr) 2004-10-27
EP1153675B1 EP1153675B1 (fr) 2005-10-05

Family

ID=7641013

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01108886A Expired - Lifetime EP1153675B1 (fr) 2000-05-09 2001-04-10 Matériaux en feuilles pourvus de structures

Country Status (6)

Country Link
EP (1) EP1153675B1 (fr)
CN (1) CN1212223C (fr)
AT (1) ATE305831T1 (fr)
DE (2) DE10022102C1 (fr)
ES (1) ES2246269T3 (fr)
MY (1) MY130374A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002007908A3 (fr) * 2000-07-11 2002-05-02 Richard Smith Procede separateur d'unites metalliques
CN102360927A (zh) * 2011-09-07 2012-02-22 信源电子制品(昆山)有限公司 绕线镭射点焊机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524601A (en) * 1983-05-13 1985-06-25 Bernardi Carl E Automatic apparatus for downsetting lead frame strips
US4970579A (en) * 1988-09-21 1990-11-13 International Business Machines Corp. Integrated circuit package with improved cooling means
DE19521022C2 (de) * 1995-06-13 1997-04-10 Heraeus Gmbh W C Verfahren zur Herstellung eines Schichtverbundes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002007908A3 (fr) * 2000-07-11 2002-05-02 Richard Smith Procede separateur d'unites metalliques
CN102360927A (zh) * 2011-09-07 2012-02-22 信源电子制品(昆山)有限公司 绕线镭射点焊机

Also Published As

Publication number Publication date
DE50107591D1 (de) 2006-02-16
ES2246269T3 (es) 2006-02-16
MY130374A (en) 2007-06-29
ATE305831T1 (de) 2005-10-15
DE10022102C1 (de) 2001-10-25
EP1153675A3 (fr) 2004-10-27
EP1153675B1 (fr) 2005-10-05
CN1212223C (zh) 2005-07-27
CN1322610A (zh) 2001-11-21

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