GB1459763A - Control systems - Google Patents

Control systems

Info

Publication number
GB1459763A
GB1459763A GB612673A GB612673A GB1459763A GB 1459763 A GB1459763 A GB 1459763A GB 612673 A GB612673 A GB 612673A GB 612673 A GB612673 A GB 612673A GB 1459763 A GB1459763 A GB 1459763A
Authority
GB
United Kingdom
Prior art keywords
speed
motor
web
cut
tachogenerator
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
GB612673A
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.)
Masson Scott Thrissell Engineering Ltd
Original Assignee
Masson Scott Thrissell Engineering 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 Masson Scott Thrissell Engineering Ltd filed Critical Masson Scott Thrissell Engineering Ltd
Priority to GB612673A priority Critical patent/GB1459763A/en
Priority to DE19742405684 priority patent/DE2405684A1/en
Publication of GB1459763A publication Critical patent/GB1459763A/en
Expired legal-status Critical Current

Links

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
    • B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
    • B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
    • B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
    • B23D36/0041—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool moving continuously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1459763 Automatic control of speed MASSON SCOTT THRISSEL ENG Ltd 21 Dec 1973 [7 Feb 1973] 6126/73 Heading G3R In a system for controlling a driven continuous web and a nonlinearly driven cutter, a continuous integrator receives web speed and cutter speed signals and integrates their difference. The result is used to control one of the drives so as to maintain constant cut web lengths, as set e.g. by a variable impedance between one of the speed sensors and the integrator. As shown, motor 2 drives rotary knives 1 through non-linear link 4 to cut a web 5 e.g. paper into portions 6, the speed of motor 2 being controlled by comparator 14 according to the actual motor speed, from tachogenerator 10, and a desired speed obtained using a web speed signal from tachogenerator 13 via multiplier 17. The difference between the actual and desired motor speeds is also integrated at 12 to modify the speed control. The overall action of the system is to vary the speed of knives 1 in correspondence with the web speed, so that the cut portions 6 are of a fixed length, as determined by the gain of multiplier 17 i.e. by varying the input or feedback resistance of operational amplifier 18. In other embodiments, not shown, the web speed signal is obtained from a motor 9 driving the draw rolls 8, or this motor is controlled to a desired speed as derived from the sensed speed of motor 2.
GB612673A 1973-02-07 1973-02-07 Control systems Expired GB1459763A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB612673A GB1459763A (en) 1973-02-07 1973-02-07 Control systems
DE19742405684 DE2405684A1 (en) 1973-02-07 1974-02-06 CONTROL SYSTEM FOR CUTTING MACHINES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB612673A GB1459763A (en) 1973-02-07 1973-02-07 Control systems

Publications (1)

Publication Number Publication Date
GB1459763A true GB1459763A (en) 1976-12-31

Family

ID=9808899

Family Applications (1)

Application Number Title Priority Date Filing Date
GB612673A Expired GB1459763A (en) 1973-02-07 1973-02-07 Control systems

Country Status (2)

Country Link
DE (1) DE2405684A1 (en)
GB (1) GB1459763A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110668A1 (en) * 1981-03-19 1982-09-30 Maschinen- und Apparatevertrieb Helmut Strunk, 5241 Kirchen-Freusburg Measuring arrangement for the feed rate, the fed length and the weight of a fed length of a driven, elongated body, as well as for controlling its feed rate
DE102008054192A1 (en) * 2008-10-31 2010-05-06 Manroland Ag printing unit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58189710A (en) * 1982-04-29 1983-11-05 Mitsubishi Electric Corp Cutter controller
CN113174744A (en) * 2020-06-15 2021-07-27 长乐市丽智产品设计有限公司 Discharging assembly for sliding cloth fixed-length cutting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110668A1 (en) * 1981-03-19 1982-09-30 Maschinen- und Apparatevertrieb Helmut Strunk, 5241 Kirchen-Freusburg Measuring arrangement for the feed rate, the fed length and the weight of a fed length of a driven, elongated body, as well as for controlling its feed rate
DE102008054192A1 (en) * 2008-10-31 2010-05-06 Manroland Ag printing unit

Also Published As

Publication number Publication date
DE2405684A1 (en) 1974-09-05

Similar Documents

Publication Publication Date Title
GB1478597A (en) Pumping apparatus
GB1454110A (en) Tension control sinterable powder compositions
GB1484185A (en) Apparatus for introducing a strip of paper cardboard or similar web material into a printing machine
GB1516893A (en) Web cutting control system
GB1504771A (en) Speed control systems
EP0251135A3 (en) Extrusion control
GB1289214A (en)
GB1459763A (en) Control systems
GB1532367A (en) Devices for controlling the speed of a vehicle
GB1436341A (en) Speed control apparatus
GB1504278A (en) Extruders
GB1513564A (en) Corrugating machinery
SE7508304L (en) PROCEDURE FOR CONTROLLING THE CUTTING THROUGH A ROTARY KNIFE OF A CONTINUOUS FORMAT, RANGE SHAPE MATERIAL
GB1519920A (en) Method and apparatus for controlling the length of sheets cut from a moving web
ES474392A1 (en) Cross cutter for rolls of materials
GB1298181A (en) Cross cutter with controlled multiple motor drive for cutting sheets of uniform length
GB1417056A (en) Apparatus for controlling the bead height in the roll gap of a calender to which material to be calendered is fed from a pre-plastifying machine
GB1238718A (en)
ES421856A1 (en) Tape recorder
SE7706413L (en) CONTROL DEVICE FOR SPEED CONTROL OF PNEUMATIC AND / OR HYDRAULIC PISTONS
GB1473179A (en) Apparatus for suppressing rotational oscillations of web supply rolls
ES470686A1 (en) Safety system for the drive of a synchronous cross cutter
GB1262647A (en) Radio control system
GB1099274A (en) Improvements in or relating to the control of flying shears
GB1063971A (en) Method and apparatus for making a continuous product and control device therefor

Legal Events

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