GB1469038A - Cutting apparatus - Google Patents

Cutting apparatus

Info

Publication number
GB1469038A
GB1469038A GB423575A GB423575A GB1469038A GB 1469038 A GB1469038 A GB 1469038A GB 423575 A GB423575 A GB 423575A GB 423575 A GB423575 A GB 423575A GB 1469038 A GB1469038 A GB 1469038A
Authority
GB
United Kingdom
Prior art keywords
blade
buffer
cut
cutting
data
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
GB423575A
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.)
Wurlitzer Co
Original Assignee
Wurlitzer Co
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 Wurlitzer Co filed Critical Wurlitzer Co
Publication of GB1469038A publication Critical patent/GB1469038A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B13/00—Band or strap sawing machines; Components or equipment therefor
    • 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
    • B23D53/00—Machines or devices for sawing with strap saw-blades which are effectively endless in use, e.g. for contour cutting
    • B23D53/06—Machines or devices for sawing with strap saw-blades which are effectively endless in use, e.g. for contour cutting with shiftable or swinging work-table
    • 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
    • B23D55/00—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts
    • B23D55/08—Sawing machines or sawing devices working with strap saw blades, characterised only by constructional features of particular parts of devices for guiding or feeding strap saw blades
    • B23D55/082—Devices for guiding strap saw blades
    • 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
    • B23D59/00—Accessories specially designed for sawing machines or sawing devices
    • B23D59/008—Accessories specially designed for sawing machines or sawing devices comprising computers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/188—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by special applications and not provided for in the relevant subclasses, (e.g. making dies, filament winding)
    • 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
    • Y10T83/162—With control means responsive to replaceable or selectable information program
    • Y10T83/166—Removable element carries program
    • Y10T83/169—Indeterminate length, web or strand
    • Y10T83/171—Magnetic
    • 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
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/654—With work-constraining means on work conveyor [i.e., "work-carrier"]
    • Y10T83/6545—With means to guide work-carrier in nonrectilinear path
    • 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
    • Y10T83/687—By tool reciprocable along elongated edge
    • Y10T83/6875—With means permitting tool to be rotatably adjusted about its cutting edge during cutting
    • 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
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7076—With programming means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Cutting Processes (AREA)
  • Sawing (AREA)

Abstract

1469038 Bandsaws WURLITZER CO 31 Jan 1975 [25 March 1974] 4235/75 Heading B5L [Also in Division G3] Apparatus for cutting a workpiece 42 comprises X and Y table drives, the angle of the cutting blade 46 being conjointly controlled, to maintain it tangential to the direction of the cut, both for cutting, and for withdrawal of the blade. Servo systems controlling the drive motors 12, 30, 60 are made sufficiently sensitive to avoid contour errors due to servo lag ensuring that the blade can be backed out without fouling. Buffer storage (96), Fig. 3 (not shown), may be provided between a punched tape reader (92) and the main numerical control logic (100), the data rate from the buffer storage (96) to the logic (100) being at a higher rate than that at which the buffer receives the data from the reader, during circular interpolation of arcuate portions of the cut, the buffer accumulating such data during linear portions of the cut. Alternatively, the buffer may be omitted, and the data read from a disc store or mini-computer. The apparatus is a bandsaw for forming of piano keyboards from a single board, or wood blank, each key shape being that bounded by arcuate and linear cuts. The motor 60 controlling the blade orientation drives spiral gears 66, 68, belts; and pulleys 80, 82; 72, 74, 76, 78 controlling the orientation of blade guides 54, 56.
GB423575A 1974-03-25 1975-01-31 Cutting apparatus Expired GB1469038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US454443A US3908723A (en) 1974-03-25 1974-03-25 Numerical controlled bandsaw for keyboards

Publications (1)

Publication Number Publication Date
GB1469038A true GB1469038A (en) 1977-03-30

Family

ID=23804621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB423575A Expired GB1469038A (en) 1974-03-25 1975-01-31 Cutting apparatus

Country Status (6)

Country Link
US (1) US3908723A (en)
JP (1) JPS50128890A (en)
CA (1) CA1011225A (en)
DE (1) DE2512463A1 (en)
GB (1) GB1469038A (en)
IT (1) IT1029782B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193684A (en) * 1986-07-31 1988-02-17 Amada Co Ltd Band saw machine

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3975975A (en) * 1975-10-02 1976-08-24 Minnesota Mining And Manufacturing Company Paper sawing machine
JPS53497A (en) * 1976-06-24 1978-01-06 Toshiba Machine Co Ltd Device for turning and driving frest saw blade of automatic frest sawing machine
US4226148A (en) * 1978-05-02 1980-10-07 Gulf & Western Corporation Device for translating and rotating a cutting platen with respect to a reciprocal cutter
ES8308741A1 (en) * 1981-09-29 1983-10-01 Ge Mec Spa Wood working sawing machine - has longitudinal and transverse slide carriages cam controlled to cut profiles
US4486840A (en) * 1981-10-14 1984-12-04 Houdaille Industries, Inc. Computer numeric control for metal forming
US4926728A (en) * 1986-09-05 1990-05-22 Contour Saws, Inc. Band saw for cutting shaped pieces of bar stock
WO1988006935A1 (en) * 1987-03-13 1988-09-22 Anton Koukal Band saw
JPH02180521A (en) * 1988-12-29 1990-07-13 Daido Steel Sheet Corp Cutting machine
DE58900242D1 (en) * 1989-04-01 1991-10-02 Baeumer Kg Spezialmasch VERTICAL SHAPING MACHINE.
US6550365B1 (en) * 1997-06-10 2003-04-22 Weidong Zhang Coping saw
ITPD20010129A1 (en) * 2001-06-04 2002-12-04 Veneta Macchine Snc Di Nadali SAWING MACHINE, PARTICULARLY OF THE BAND TYPE.
BG65122B1 (en) * 2002-04-16 2007-03-30 "Институт По Заваряване" Ад Nc stripcutting machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2774131A (en) * 1955-01-31 1956-12-18 Continental Machines Metal cutting band saw with manually controllable power driven work feed
US2792033A (en) * 1955-06-27 1957-05-14 Altus E Bradley Swiveled jig saw
US2914100A (en) * 1956-11-21 1959-11-24 Armstrong Blum Mfg Company Control system for band saw blade
US2843917A (en) * 1956-12-24 1958-07-22 Continental Machines Band sawing machine
US3716716A (en) * 1971-08-26 1973-02-13 W Marantette Photoelectric two axis positioning system
US3803960A (en) * 1972-12-11 1974-04-16 Gerber Garment Technology Inc System and method for cutting pattern pieces from sheet material
US3805650A (en) * 1973-03-26 1974-04-23 Gerber Garment Technology Inc Apparatus and method for cutting sheet material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2193684A (en) * 1986-07-31 1988-02-17 Amada Co Ltd Band saw machine
GB2193684B (en) * 1986-07-31 1991-01-16 Amada Co Ltd Two-way band saw machine

Also Published As

Publication number Publication date
IT1029782B (en) 1979-03-20
CA1011225A (en) 1977-05-31
US3908723A (en) 1975-09-30
DE2512463A1 (en) 1975-10-02
JPS50128890A (en) 1975-10-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee