[go: up one dir, main page]

US3670644A - Calender roll adjustment apparatus - Google Patents

Calender roll adjustment apparatus Download PDF

Info

Publication number
US3670644A
US3670644A US18033A US3670644DA US3670644A US 3670644 A US3670644 A US 3670644A US 18033 A US18033 A US 18033A US 3670644D A US3670644D A US 3670644DA US 3670644 A US3670644 A US 3670644A
Authority
US
United States
Prior art keywords
switch
elements
shafts
motors
mechanical drive
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
US18033A
Other languages
English (en)
Inventor
Heinz Hoever
Herbert Orth
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.)
KraussMaffei Extrusion GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
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 Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Application granted granted Critical
Publication of US3670644A publication Critical patent/US3670644A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/60—Roll-force control; Roll-gap control by control of a motor which drives an adjusting screw
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/46—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another
    • H02P5/48—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds
    • H02P5/49—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors for speed regulation of two or more dynamo-electric motors in relation to one another by comparing mechanical values representing the speeds by intermittently closing or opening electrical contacts

Definitions

  • the present invention relates to apparatus for adjusting the spacing between two generally parallel elements. More particularly but not exclusively, the invention relates to apparatus for adjusting the spacing between two rolls of a calender.
  • two motors are provided which move the rolls together or apart and which are actuated by a common switch. It has been found, however, that differences in the efficiency of the transmission systems of the respective motors, and variations in lubrication, affect the speed of the motors and prevent them from running precisely in synchronism. This becomes noticeable in the form of speed differences, especially when the motors are frequently used, the result being that the rolls are not parallel. Even with the aid of revolution counters coupled to each of the motors, differences in speed can only be revealed, not prevented, unless relatively complex electronic means is utilized to keep the motors in step.
  • apparatus for adjusting the spacing between two nominally parallel elements, one of said elements having first and second opposed end portions, said apparatus comprising, a first motor operable to move the first said end portion of the said one of said elements relative to the other of said elements, a second motor operable to move the second said end portion of the said one of said elements relative to the said other of said elements, a respective shaft operatively connected to each of said motors, switch means for controlling said motors, and switch-actuating means associated with each of said shafts and operable to actuate said switch means to switch off said motors when the speed of said shafts differs.
  • FIG. 1 is a front elevation, partially in section, of one embodiment of the invention.
  • FIG. 2 is a front elevation of a second embodiment of the invention.
  • the upper roll 2 can be raised and lowered by means of threaded spindles 3 and 4, which are respectively driven by motors 7 and 8 through worm gears 5 and 6.
  • the spindles 3 and 4 act directly on the respective bearings at each end portion of the roll 2.
  • the roll 2 is moved relative to the roll 1 by raising and lowering the said bearings. Accordingly, adjustment is provided of the roll nip and hence also of the thickness of the foil or sheet formed therein.
  • the two adjusting motors 7 and 8 To move the roll 2 so that it remains parallel to the roll 1, the two adjusting motors 7 and 8 must run in synchronism.
  • the motors 7 and 8 are switched off to enable corrections to be made, for example by reversing the direction of rotation of one of the motors by parallel or individual switching.
  • the bush 11 also has a threaded bore lla which is engaged with a threaded end portion 10a, of the shaft .10.
  • Control of the motors 7, 8 is effected through switches 12 and 13 actuated by movement of the bush 11, each switch being operable to switch off both the motors.
  • the bush 1 1 will be unscrewed along the threaded end portion 10a and will thus move to the left as viewed in FIG. 1 until it contacts the switch 12 so that the motors 7 and 8 are switched off.
  • a switch-actuating member 14 is formed in two parts 14a and 14b.
  • the part 14a is axially slidable along the shaft 9 and is biassed by a spring 15 towards the part 14b which is fast with the shaft 10.
  • the part 14a has a peripheral face 14d inclined to the axis of the shaft 9 and biassed by the spring 15 into engagement with a pin 14c or other abutment means carried by the part 14b.
  • Control of the motors is effected through a switch 16 actuated by the part 14a.
  • the pin 140 will ride up the other half of the inclined face 14d and will again move the part 14a to the left until it contacts the switch 16.
  • any departure from the original parallel setting of the roll nip can be kept within pre-determined limits without the need for complicated adjusting arrangements which are liable to develop faults.
  • damage to the roll bearings as a result of non-parallel adjustment is prevented.
  • the invention is naturally not limited to a two-roll calender; on the contrary, it can be applied with advantage to multi-roll calenders and to other equipment or machinery where parallel adjustment of machine elements is required.
  • said first motor being coupled by said first mechanical drive to the first said end portion of the said one of said elements and rotatable to move said end portion transversely relative to the other of said elements
  • said second motor being coupled by said second mechanical drive to the second said end portion of the said one of said elements and rotatable to move said end portion transversely relative to the other of said elements
  • Apparatus according to claim 1 wherein the two said elements comprise the respective rolls of a calender.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Replacement Of Web Rolls (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
US18033A 1969-03-12 1970-03-10 Calender roll adjustment apparatus Expired - Lifetime US3670644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691912392 DE1912392A1 (de) 1969-03-12 1969-03-12 Mechanische-elektrische Einrichtung zum UEberwachen der Parallelverstellung der Walzen eines Kalanders

Publications (1)

Publication Number Publication Date
US3670644A true US3670644A (en) 1972-06-20

Family

ID=5727797

Family Applications (1)

Application Number Title Priority Date Filing Date
US18033A Expired - Lifetime US3670644A (en) 1969-03-12 1970-03-10 Calender roll adjustment apparatus

Country Status (4)

Country Link
US (1) US3670644A (de)
DE (1) DE1912392A1 (de)
FR (1) FR2037779A5 (de)
GB (1) GB1256190A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894488A (en) * 1972-10-17 1975-07-15 American Bank Note Co Printing pressure control apparatus for intaglio press
US4471531A (en) * 1983-02-16 1984-09-18 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for measuring press roll clearance
US5364257A (en) * 1993-10-07 1994-11-15 Yeh Ten F Middle sole sloping machine with length/width adjustable rolls
US5505605A (en) * 1993-10-07 1996-04-09 Yeh; Tien-Fu Middle sole sloping machine with length/height adjustable rolls
US5597592A (en) * 1993-10-07 1997-01-28 Yeh; Tien-Fu Middle sole sloping machine with length/height adjustable rolls
US5609098A (en) * 1994-03-17 1997-03-11 Nippon Paper Industries Co., Ltd. Paper calendering apparatus
US5666845A (en) * 1996-01-23 1997-09-16 Tippins Incorporated Rolling mill
US6790316B1 (en) * 1999-06-03 2004-09-14 Metso Paper, Inc. Method and arrangement for positioning a shoe of a shoe press/shoe calendar in a paper machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE548715C (de) * 1926-07-06 1932-04-18 Siemens Schuckertwerke Akt Ges Anordnung fuer den Gleichlauf elektrischer Gleichstrommotoren
US2100653A (en) * 1935-09-27 1937-11-30 Gen Electric Control system
US2328258A (en) * 1942-09-26 1943-08-31 Bliss E W Co Apparatus for controlling the slide movement in long-bed hydraulic presses
US2603145A (en) * 1950-04-25 1952-07-15 Edward M Dreis Leveling mechanism for hydraulically actuated press brakes
US2859591A (en) * 1955-07-20 1958-11-11 Us Industries Inc Hydraulic synchronizer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE548715C (de) * 1926-07-06 1932-04-18 Siemens Schuckertwerke Akt Ges Anordnung fuer den Gleichlauf elektrischer Gleichstrommotoren
US2100653A (en) * 1935-09-27 1937-11-30 Gen Electric Control system
US2328258A (en) * 1942-09-26 1943-08-31 Bliss E W Co Apparatus for controlling the slide movement in long-bed hydraulic presses
US2603145A (en) * 1950-04-25 1952-07-15 Edward M Dreis Leveling mechanism for hydraulically actuated press brakes
US2859591A (en) * 1955-07-20 1958-11-11 Us Industries Inc Hydraulic synchronizer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3894488A (en) * 1972-10-17 1975-07-15 American Bank Note Co Printing pressure control apparatus for intaglio press
US4471531A (en) * 1983-02-16 1984-09-18 The United States Of America As Represented By The Secretary Of Agriculture Method and apparatus for measuring press roll clearance
US5364257A (en) * 1993-10-07 1994-11-15 Yeh Ten F Middle sole sloping machine with length/width adjustable rolls
US5505605A (en) * 1993-10-07 1996-04-09 Yeh; Tien-Fu Middle sole sloping machine with length/height adjustable rolls
US5597592A (en) * 1993-10-07 1997-01-28 Yeh; Tien-Fu Middle sole sloping machine with length/height adjustable rolls
US5609098A (en) * 1994-03-17 1997-03-11 Nippon Paper Industries Co., Ltd. Paper calendering apparatus
US5666845A (en) * 1996-01-23 1997-09-16 Tippins Incorporated Rolling mill
US6790316B1 (en) * 1999-06-03 2004-09-14 Metso Paper, Inc. Method and arrangement for positioning a shoe of a shoe press/shoe calendar in a paper machine

Also Published As

Publication number Publication date
FR2037779A5 (de) 1970-12-31
DE1912392A1 (de) 1970-09-17
GB1256190A (en) 1971-12-08

Similar Documents

Publication Publication Date Title
US3670644A (en) Calender roll adjustment apparatus
DE3881985T2 (de) Überwachbares und kompressierbares Rückkopplungswerkzeug und Regelsystem für eine Presse.
US4004873A (en) Continuously operating press
WO1986001128A1 (fr) Dispositif de reglage de l'ecartement de mouture pour moulins a cylindres
GB2119422A (en) Web-rolling machines
US4406141A (en) Straightening apparatus for steel pipes and the like
US5067358A (en) Vibrating table installation for the manufacture of concrete products
US4348952A (en) Cross axis mechanism
US4596523A (en) Calendar or roll assembly
US3331313A (en) Calender stacks having transverse pressure sensing and adjustment means
RU2260491C1 (ru) Блок нажимных валков
US3832758A (en) Textile fabric or paper shrinking machines
CN104690871A (zh) 新型压延调距装置
US4899656A (en) Machine for processing a continuous web or sheets
US3299801A (en) Apparatus for treating blanks or webs of material
FI72551B (fi) Regleranordning foer valspress.
US3738896A (en) Rolling mill for passing webs especially corrugated cardboard webs
RU2385801C2 (ru) Усовершенствованная установка для формования керамических плиток или панелей
CN112808383B (zh) 一种破碎机及其破碎辊调节装置与破碎辊调节方法
EP1445093B1 (de) Verfahren und Vorrichtung zur Steuerung einer Rundläufer-Tablettiermaschine
EP0267165A2 (de) Einstellvorrichtung für Kalenderwalzen für Kautschuk und Kunststoff
CN110103383A (zh) 天然橡胶智能化加工系统及其方法
JPH0430893B2 (de)
JPS60124427A (ja) 円盤状素形材のロ−ル圧延機の制御方法
CN1034504A (zh) 制造由塑料或橡胶薄膜和纺织增强带构成的复合带的多辊涂覆和复合压光机