GB917339A - Paper trimming machine and control system therefor - Google Patents

Paper trimming machine and control system therefor

Info

Publication number
GB917339A
GB917339A GB28256/61A GB2825661A GB917339A GB 917339 A GB917339 A GB 917339A GB 28256/61 A GB28256/61 A GB 28256/61A GB 2825661 A GB2825661 A GB 2825661A GB 917339 A GB917339 A GB 917339A
Authority
GB
United Kingdom
Prior art keywords
lead screw
back gauge
control system
fast
system therefor
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
GB28256/61A
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.)
Smith and Winchester Manufacturing Co
Original Assignee
Smith and Winchester Manufacturing 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 Smith and Winchester Manufacturing Co filed Critical Smith and Winchester Manufacturing Co
Publication of GB917339A publication Critical patent/GB917339A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/20—Automatic control or regulation of feed movement, cutting velocity or position of tool or work before or after the tool acts upon the workpiece
    • B23Q15/22—Control or regulation of position of tool or workpiece
    • B23Q15/225—Control or regulation of position of tool or workpiece in feed control, i.e. approaching of tool or work in successive decreasing velocity steps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/015—Means for holding or positioning work for sheet material or piles of sheets
    • B26D7/016—Back gauges
    • 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
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/463—Work-feed element contacts and moves with work
    • Y10T83/4635—Comprises element entering aperture in, or engaging abutment surface on, work
    • 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
    • Y10T83/5815—Work-stop abutment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Paper (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

917,339. Electric correspondence control systems. SMITH & WINCHESTER MANUFACTURING CO. Aug. 3, 1961 [Jan. 17, 1961], No. 28256/61. Class 40 (1). Apparatus for trimming sheets of paper to a required length comprises an automaticallybalanced resistance bridge consisting of a manually-adjusted potentiometer 73-76, and a circular potentiometer 40 carried on a lead screw for the back gauge of the trimmer, movable along a rail relative to a fixed cutting knife. The rebalancing motor is selectively coupled to the lead screw through clutches to provide a fast or slow forward movement, but only a fast reverse movement, whereby the back gauge always overshoots in the reverse direction and comes to rest in the forward direction at slow speed, thus overcoming backlash errors.
GB28256/61A 1961-01-17 1961-08-03 Paper trimming machine and control system therefor Expired GB917339A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83339A US3193745A (en) 1961-01-17 1961-01-17 Paper trimming machine and anti-backlash positional servo system therefor

Publications (1)

Publication Number Publication Date
GB917339A true GB917339A (en) 1963-02-06

Family

ID=22177682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28256/61A Expired GB917339A (en) 1961-01-17 1961-08-03 Paper trimming machine and control system therefor

Country Status (2)

Country Link
US (1) US3193745A (en)
GB (1) GB917339A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1286809A (en) * 1968-11-12 1972-08-23 Otto Robert Frisch Servomechanism for control of a scanning device
US3725763A (en) * 1970-11-27 1973-04-03 Harris Intertype Corp Back guage position control for a paper cutting machine
US3719877A (en) * 1970-11-27 1973-03-06 Harris Intertype Corp Stop signal inhibit control for paper cutting machines
TW587978B (en) * 2002-11-29 2004-05-21 Ind Tech Res Inst Method and device of setting cut length for window-curtain trimmer
CN112140262A (en) * 2020-10-13 2020-12-29 爱可道生物科技有限公司 Artichoke bud cutting device with width is adjusted

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520495A (en) * 1947-02-14 1950-08-29 Cleveland Crane Eng Shear press back gauge
DE1034250B (en) * 1956-04-18 1958-07-17 Wohlenberg Kommanditgesellscha Device for the electronic control of the drive and the feed saddle of cutting machines for paper, cardboard or the like.
US2860705A (en) * 1956-04-24 1958-11-18 E P Lawson Co Inc Photoelectric controlled back gauge
US3028531A (en) * 1957-07-29 1962-04-03 Danly Mach Specialties Inc Automatic shut height motor control circuit
US2916801A (en) * 1957-09-19 1959-12-15 Toronto Type Foundry Machine control means including work feed programming means
US2889507A (en) * 1957-10-07 1959-06-02 Danly Mach Specialties Inc Servosystem adapted for die-forming press slide positioning
US2971142A (en) * 1958-05-09 1961-02-07 Square D Co Transistorized circuit for positioning slave potentiometers

Also Published As

Publication number Publication date
US3193745A (en) 1965-07-06

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