GB2011570A - Apparatus for adjusting the slide stroke of a press machine - Google Patents

Apparatus for adjusting the slide stroke of a press machine

Info

Publication number
GB2011570A
GB2011570A GB7847678A GB7847678A GB2011570A GB 2011570 A GB2011570 A GB 2011570A GB 7847678 A GB7847678 A GB 7847678A GB 7847678 A GB7847678 A GB 7847678A GB 2011570 A GB2011570 A GB 2011570A
Authority
GB
United Kingdom
Prior art keywords
eccentric
eccentric drum
drum
spindle
slide
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
GB7847678A
Other versions
GB2011570B (en
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.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
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 Komatsu Ltd filed Critical Komatsu Ltd
Publication of GB2011570A publication Critical patent/GB2011570A/en
Application granted granted Critical
Publication of GB2011570B publication Critical patent/GB2011570B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/20—Crank gearings; Eccentric gearings with adjustment of throw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/263—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks work stroke adjustment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
    • F16C3/22—Cranks; Eccentrics
    • F16C3/28—Adjustable cranks or eccentrics

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

An apparatus for adjusting a slide stroke of a press machine comprising a press frame (2), a spindle (1) rotatably mounted on the press frame (2), a first eccentric drum (4, 5) fixedly mounted on the spindle (1), a second eccentric drum (7) rotatably mounted on the first eccentric drum (4, 5), a connecting rod (8) rotatably mounted on the second eccentric drum (7) and a slide (not shown) connected with the second eccentric drum (7) through a plunger (10). A cylindrical member (18) is rotatably and slidably mounted on the spindle (1) and is adapted to be selectively connectible with the first eccentric drum (4, 5). The cylindrical member is connected so as to rotate along with the second eccentric drum (7) via a plate member (14) which is rotatably mounted on the spindle (1) and is adapted to slide within a guide groove (17) formed in the second eccentric drum (7). The slide stroke is adjustable by rotating the second eccentric drum (7) relative to the first eccentric drum (4, 5). After first releasing, via a nut (23) on spindle 1, facial serrations (18a, 13a) forming a rotary connection between member (18) and first eccentric (4, 5), manually turned gear adjuster means (27, 28) may be readily operated to rotate the second eccentric (7) relative to the first eccentric (4). <IMAGE>
GB7847678A 1977-12-20 1978-12-08 Apparatus for adjusting the slide stroke of a press machine Expired GB2011570B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15245477A JPS5485485A (en) 1977-12-20 1977-12-20 Slide stroke-adjusting apparatus for use in press machines

Publications (2)

Publication Number Publication Date
GB2011570A true GB2011570A (en) 1979-07-11
GB2011570B GB2011570B (en) 1982-06-23

Family

ID=15540863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7847678A Expired GB2011570B (en) 1977-12-20 1978-12-08 Apparatus for adjusting the slide stroke of a press machine

Country Status (3)

Country Link
JP (1) JPS5485485A (en)
DE (1) DE2854182A1 (en)
GB (1) GB2011570B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5543621U (en) * 1978-09-09 1980-03-21
JPS5724480Y2 (en) * 1979-08-23 1982-05-27
CA2037500A1 (en) * 1990-03-05 1991-09-06 Masakatsu Shiga Apparatus for adjusting a slide stroke of a press machine

Also Published As

Publication number Publication date
DE2854182A1 (en) 1979-06-21
GB2011570B (en) 1982-06-23
JPS5485485A (en) 1979-07-07
JPS5532479B2 (en) 1980-08-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921208