GB1253557A - Improvements in punching presses - Google Patents

Improvements in punching presses

Info

Publication number
GB1253557A
GB1253557A GB8899/69A GB889969A GB1253557A GB 1253557 A GB1253557 A GB 1253557A GB 8899/69 A GB8899/69 A GB 8899/69A GB 889969 A GB889969 A GB 889969A GB 1253557 A GB1253557 A GB 1253557A
Authority
GB
United Kingdom
Prior art keywords
stripper
springs
disc
cams
ram
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
Application number
GB8899/69A
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.)
C Behrens AG
Original Assignee
C Behrens AG
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 C Behrens AG filed Critical C Behrens AG
Publication of GB1253557A publication Critical patent/GB1253557A/en
Expired legal-status Critical Current

Links

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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/12—Punching using rotatable carriers
    • 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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
    • B21D45/006—Stripping-off devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2135—Moving stripper timed with tool stroke
    • Y10T83/2142—Plural strippers operative upon plural tools
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096—Means to move product out of contact with tool
    • Y10T83/2135—Moving stripper timed with tool stroke
    • Y10T83/2163—Stripper biased against product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/566—Interrelated tool actuating means and means to actuate work immobilizer
    • Y10T83/5669—Work clamp
    • Y10T83/5787—Clamp driven by yieldable means
    • Y10T83/5796—Drive means is resilient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/748—With work immobilizer
    • Y10T83/7487—Means to clamp work
    • Y10T83/7533—With biasing or counterbalancing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8727—Plural tools selectively engageable with single drive
    • Y10T83/8732—Turret of tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)

Abstract

1,253,557. Punching; strippers. C. BEHRENS A.G. 19 Feb., 1969 [24 Feb., 1968], No. 8899/69. Heading B3W. In a crank-operated punch press the crankshaft 4 also actuates a stripper and hold-down mechanism through cams 15 and energyabsorbing resilient means 28 which during a punching operation are compressed after the stripper etc. mechanism has contacted a workpiece. The stripper mechanism comprises a disc 8 supporting a stripper 14 and connected to guides 22, springs 12 maintaining the disc in its rest position against the underside of the punch carrier 1, which as shown is a rotary multiple punch carrier. Each cam 15 bears on a follower roller 35 supported by a forked pin 36 which is mounted in a yoke 37 and includes a shank 36<SP>1</SP> which is slidable in a bush 38. The bushes 38 form part of a ram casing 39 which also supports the crank-shaft 4. Spaced from the yokes 37 by means of bolts 13 is a frame 40 and located between the yoke and the frame are the resilient means 28 in the form of rubber springs 11. During a punching operation the cams 15 cause the frame 40 to move downwardly ahead of the ram 7 and apply thrust to the stripper disc 8 through pillars 22 until the stripper 14 contacts a workpiece. Further downward movement causes the springs 11 to be compressed. During the upward stroke of the press the cams 15 cause the pressure to be removed from the springs 11 to allow the springs 12 to raise the disc 8 only after the ram 7 has raised the punch 5. Reference has been directed by the Comptroller to Specification 950,807.
GB8899/69A 1968-02-24 1969-02-19 Improvements in punching presses Expired GB1253557A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0096807 1968-02-24

Publications (1)

Publication Number Publication Date
GB1253557A true GB1253557A (en) 1971-11-17

Family

ID=6988931

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8899/69A Expired GB1253557A (en) 1968-02-24 1969-02-19 Improvements in punching presses

Country Status (3)

Country Link
US (1) US3613490A (en)
DE (1) DE1652754C3 (en)
GB (1) GB1253557A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3703700C2 (en) * 1986-02-06 2000-04-13 Amada Co Punching press with an automatic tool changing device
DE3720777C2 (en) * 1987-06-24 1993-10-07 Behrens Ag C Turret cutting press
JP3117732B2 (en) * 1990-12-21 2000-12-18 株式会社ブリヂストン Method and apparatus for cutting and forming a band-shaped member
US5679205A (en) * 1995-06-26 1997-10-21 The Goodyear Tire & Rubber Company Apparatus for severing and shaping a strip of elastomeric material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735487A (en) * 1956-02-21 friedman
US2380485A (en) * 1943-03-18 1945-07-31 George F Wales Apparatus for perforating sheet material
US2882971A (en) * 1956-09-20 1959-04-21 George F Wales Punch construction and guide therefor
DE1176964B (en) * 1961-08-30 1964-08-27 Behrens Ag C Revolver punch

Also Published As

Publication number Publication date
DE1652754A1 (en) 1971-09-30
US3613490A (en) 1971-10-19
DE1652754B2 (en) 1975-02-13
DE1652754C3 (en) 1975-10-02

Similar Documents

Publication Publication Date Title
GB1359214A (en) Apparatus for punching a blank from a workpiece
GB1406397A (en) Blanking press
GB950807A (en) Improvements in and relating to multiple die punches
US2251433A (en) Cap making apparatus
ES485531A1 (en) Forging press
GB1253557A (en) Improvements in punching presses
GB1446041A (en) Press
GB1361306A (en) Multiple-punch press
ES449848A1 (en) Eccentric press
GB1429079A (en) Blanking die assembly
GB971987A (en) Lifter mechanism
GB1280293A (en) Coining presses
GB1285181A (en) Presses
GB1371131A (en) Press for cutting blanks from strip material
US3053122A (en) Work-piece ejector for coining presses
SU98021A1 (en) Combined die for simultaneous cutting and drawing of sheet metal blanks
SU640790A1 (en) Die for finish punching-out of parts from sheet work
GB803669A (en) Improvements in or relating to power operated presses
SU538774A1 (en) Stamp for clear cutting
GB1359905A (en) Vertical hydraulic press
GB1391496A (en) Punching machines for metal and other amterial
SU383628A1 (en) VERTICAL HYDRAULIC PRESS
SU710828A1 (en) Hydraulic press
SU397368A1 (en) HYDRAULIC STAMPING PRESS
JPS5695424A (en) Pressing device for full circumference bending