US3885485A - Hydraulically operated guillotine - Google Patents

Hydraulically operated guillotine Download PDF

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Publication number
US3885485A
US3885485A US434949A US43494974A US3885485A US 3885485 A US3885485 A US 3885485A US 434949 A US434949 A US 434949A US 43494974 A US43494974 A US 43494974A US 3885485 A US3885485 A US 3885485A
Authority
US
United States
Prior art keywords
blade
frames
guillotine
shaft
carrying beam
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
US434949A
Other languages
English (en)
Inventor
Frederick Ralph Savory
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.)
Steel Construction and Engineering Co Notts Ltd
Original Assignee
Steel Construction and Engineering Co Notts 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 Steel Construction and Engineering Co Notts Ltd filed Critical Steel Construction and Engineering Co Notts Ltd
Application granted granted Critical
Publication of US3885485A publication Critical patent/US3885485A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
    • 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
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8837—With application of force to opposite ends of tool supporting crosshead
    • Y10T83/8838—By relatively movable fixed axis levers
    • 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
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8837—With application of force to opposite ends of tool supporting crosshead
    • Y10T83/884—By connecting rod articulated with tool support
    • 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
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8841—Tool driver movable relative to tool support
    • Y10T83/8848—Connecting rod articulated with tool support

Definitions

  • This invention relates to guillotines, and more particularly to hydraulically operated guillotines having a hydraulic ram acting on each end of a movable bladecarrying beam. and is primarily concerned with providing means whereby the efforts of both rams are sub stantially fully utilised for any position of cutting along a blade carried by the blade-carrying beam.
  • a secondary object is to enable one ram to be rendered inoperative to enable faster operation by the other ram when cutting material of small cross sectional area or which is easier to cut compared with the maximum capacity of the guillotine.
  • a hydraulically operated guillotine comprises side-frames with guides for a movable blade-carrying beam, projections on the ends of the blade-carrying beam projecting through slots in the side-frames extending in the direction of movement of the blade-carrying beam, a shaft extending through journals in the side frames with its axis parallel to the central plane of the slots in the side-frames, a pair of arms rigidly secured one to each end of the shaft and extending transversely with respect to the central plane of the slots in the side-frames, a pair of hydraulic rams secured one between each arm on the shaft and an anchorage on the respective side-frame. and linkages from positions on the arms intermediate the shaft and the rams to the projections on the ends of the blade-carrying beam.
  • the arrangement of the linkages from intermediate the rams and the shaft is also advantageous in affording a mechanical advantage to the rams, which is preferably at least two to one.
  • Each linkage preferably consists of a bar extending rigidly from the projections at one end of the blade carrying beam and a link pivotally connected at the other end to the bar.
  • Each bar is preferably cranked or curved towards its end remote from the projections on the blade-carrying beam, so as to lie clear of the usual notches in the side-frames affording side access to a bolster-receiving member, the bolster for which carries a fixed blade for co-operation with the movable blade on the blade-carrying beam.
  • the bolster-receiving member extends between and is secured to the sideframes, which are as usual preferably thick plates of generally L-shape.
  • the side frames are preferably connected below and forwardly of the bolster-receiving member by means of vertical, horizontal, and inclined plates forming a box-section reinforcing beam.
  • Slipper bearings are provided for guiding a plate forming the movable blade-carrying beam.
  • a plate extending between the side frames and inclined downwardly rearwardly from below the bolster receiving member serves both for directing cut-off material out to the rear of the guillotine and for protecting a motor-and-pump unit and oil reservoir housed behind the box-section reinforcing beam.
  • the supply line to the ram at the trailing end of the blade-carrying beam is preferably provided with a shut off valve. so that that ram can be rendered inoperative. whereby all the hydraulic supply can be directed to the ram at the leading end of the blade-carrying beam for faster operation when cutting material of small cross sectional area or which is easier to cut compared with the maximum capacity of the guillotine.
  • the usual clamping bar for the workpieces is preferably carried by the side frames and adapted to be bydraulically or mechanically operated just in advance of the movable blade-carrying beam.
  • FIG. 1 is a front elevation of a hydraulically operated guillotine according to the invention
  • FIGS. 2 and 3 are elevations of the lefthand and right-hand ends respectively of FIG. 1 to a larger scale and in opposite extreme positions;
  • FIG. 4 is a fragmentary section generally on the line lVlV of FIG. 2.
  • the guillotine shown in the drawings has two side frames 1A, 1B consisting of thick plates of generally L- shape with notches 2 at the inside of the angle and the side frames are connected below and forwardly of a bolster-receiving member 3 by means of vertical plates 4, 5, horizontal plates 6, 7 and an inclined plate 8 together forming a box-section reinforcing beam.
  • a bolster 9 is shown fitted to the member 3 and carrying a fixed guillotine blade 10.
  • a movable guillotine blade 11 is carried by a movable beam 12 consisting of a plate guided by slipper bearings 13 at each end and bearing pads 14 behind at three intermediate positions.
  • the left-hand end of the movable blade 11 is set lower than its right-hand end, or in other words, the left-hand end 12A of the movable beam 12 is the leading end and the right-hand end 1213 is the trailing end.
  • the suffix A denotes any part associated with the leading end 12A of the movable beam 12 and the suffix B denotes any part associated with the trailing end 128.
  • Projections 15A. 153 on the ends of the blade carry ing beam 12 project through slots 16A, 168 in the side frames IA. lB extending in the direction of movement of the beam 12.
  • a shaft 17 extends through journals 18 in the side frames with its axis parallel to the central plane of the slots 16A, 16B, and a pair of arms WA, 198 are rigidly secured one to each end 17A. 17B of the shaft 17 and extend transversely with respect to the central plane of the slots 16A, 168.
  • a pair of hydraulic rams 20A, 20B are secured one between each arm on the shaft and an anchorage 21 on the respective sidefrarne. and the linkages 22A. 22B extend from positions on the arms 19A, 19B intermediate the shaft 17 and the rams 20A, 20B to the projections 15A, 15B on the ends 12A. 12B of the movable blade-carrying beam 12.
  • a plate 23 extending between the side frames 1A, 1B and inclined downwardly rearwardly from below the bolster-receiving member 3 serves both for directing cut-off material out to the rear of the guillotine and for protecting a motor-and-pump unit 24 and oil reservoir 25 (FIG 2 only) housed behind the box-section reinforcing beam.
  • a switching and control box 26 for the motor and for valves (not shown) for the oil to and from the rams 20A, 20B is conveniently mounted at the front upper left-hand end of the guillotine, but a foot switch (not shown) is preferably provided for initiating each cutting stroke of the movable beam, the extent of which stroke can be set by a control knob 27 with a pointer 28 movable over a scale 29.
  • a work clamp 30 is urged towards the bolster- 7 receiving member 3 by springs in housings 31, but in the raised position of the movable beam 12 and blade 11 the clamp 30 is held raised against the spring-urge by interengaging projections 32, 33 (FIG. 2 only) on the beam 12 and the clamp 30 respectively.
  • the housings 31 are secured to a cover plate 34 bent over and extending between the upper parts of the side frames 1A, 1B, and the outlines of covers 35A, 358 for the mechanisms on the outsides of the side frames are indicated in broken lines in all the Figures.
  • Supports 36 for the material to be cut extend from the bolster-receiving member 3 and the support at the left-hand end of the guillotine has an upstanding straight-edge 37 square with the fixed blade 10 to enable square cuts to be made easily.
  • the arrangement of the linkages 22A, 22B from intermediate their respective rams 20A, 20B and the shaft 17 is also advantageous in affording a mechanical advantage to the rams, which in the guillotine illustrated is two to one.
  • Each linkage 22A, 2213 consists of a bar 38 extending rigidly from the projections 15A or 158 at one end 12A or 12B of the blade-carrying beam 12 and a link 39 pivotally connected at one end to the arm 19A or 198 from the shaft 17 and pivotally connected at the other end to the respective bar 38, which is curved towards that end so as to lie clear of the notch 2 in the side frame 1A or 1B.
  • the supply line (not shown) to the ram 208 at the trailing end 1213 is preferably provided with a shutoff valve (not shown) operated by a knob 40 on the control box 26, so that that ram can be rendered inoperative, whereby all the hydraulic supply can be directed to the ram 20A at the leading end 12A for faster opera tion when cutting material of small cross-sectional area or which is easier to cut compared with the maximum capacity of the guillotine.
  • a hydraulically operated guillotine comprising side-frames with guides for a movable blade-carrying beam, projections on the ends of the blade-carrying beam projecting through slots in the side-frames ex tending in the direction of movement of the bladecarrying beam, a shaft extending through journals in the side frames with its axis parallel to the central plane of the slots in the side-frames, a pair of arms rigidly secured one to each end of the shaft and extending transversely with respect to the central plane of the slots in the side-frames, a pair of hydraulic rams secured one between each arm on the shaft and an anchorage on the respective side-frame, and linkages from positions on the arms intermediate the shaft and the rams to the projections on the ends of the blade-carrying beam, wherein each linkage comprises a bar extending rigidly from the projections at one end of the blade-carrying beam and a link pivotally connected at one end to the arm from the shaft and pivotally connected at the other end to the bar.
  • each bar is cranked or curved towards its end remote from the projections on the bladecarrying beam, so as to lie clear of the usual notches in the side-frames affording side access to a bolster-receiving member, the bolster for which carries a fixed blade for co-operation with the movable blade on the bladecarrying beam.
  • a guillotine as in'claim 3 wherein the bolsterreceiving member extends between and is secured to the side-frames, which are thick plates of generally L- shape, with the notches at the inside of the angle, and the side frames are connected below and forwardly of the bolster-receiving member by means of vertical. horizontal, and inclined plates forming a box-section reinforcing beam,
  • a guillotine as in claim 1 wherein a supply line feeding only the ram at the trailing end of the bladecarrying beam is provided with a shut-ofi valve, so that that ram can be rendered inoperative, whereby all the hydraulic supply can be directed to the ram at the leading end of the blade-carrying beam for faster operation when cutting material of small cross sectional area or which is easier to cut compared with the maximum ca pacity of the guillotine.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shearing Machines (AREA)
US434949A 1973-01-26 1974-01-21 Hydraulically operated guillotine Expired - Lifetime US3885485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB404573A GB1406353A (en) 1973-01-26 1973-01-26 Guillotines

Publications (1)

Publication Number Publication Date
US3885485A true US3885485A (en) 1975-05-27

Family

ID=9769717

Family Applications (1)

Application Number Title Priority Date Filing Date
US434949A Expired - Lifetime US3885485A (en) 1973-01-26 1974-01-21 Hydraulically operated guillotine

Country Status (7)

Country Link
US (1) US3885485A (fr)
AU (1) AU473529B2 (fr)
BE (1) BE810141A (fr)
CA (1) CA990641A (fr)
FR (1) FR2215286B1 (fr)
GB (1) GB1406353A (fr)
IT (1) IT1007095B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136593A (en) * 1977-03-11 1979-01-30 Canron, Inc. Front operated rake adjustment assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU572583B2 (en) * 1983-11-09 1988-05-12 Amada Company Limited Shearing machine
US5042345A (en) * 1989-10-06 1991-08-27 Wysong & Miles Company Shearing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US344074A (en) * 1886-06-22 Device
US569281A (en) * 1896-10-13 Bridge city punch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB950526A (en) * 1961-09-15 1964-02-26 Edward Grantley Telfer A pneumatically operated guillotine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US344074A (en) * 1886-06-22 Device
US569281A (en) * 1896-10-13 Bridge city punch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136593A (en) * 1977-03-11 1979-01-30 Canron, Inc. Front operated rake adjustment assembly

Also Published As

Publication number Publication date
IT1007095B (it) 1976-10-30
FR2215286A1 (fr) 1974-08-23
GB1406353A (en) 1975-09-17
AU473529B2 (en) 1976-06-24
AU6480174A (en) 1975-07-24
FR2215286B1 (fr) 1978-06-16
BE810141A (fr) 1974-05-16
CA990641A (en) 1976-06-08

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