GB1339468A - Method and device for immobilisation of a machine shaft in a pre determined angular position - Google Patents
Method and device for immobilisation of a machine shaft in a pre determined angular positionInfo
- Publication number
- GB1339468A GB1339468A GB4980171A GB4980171A GB1339468A GB 1339468 A GB1339468 A GB 1339468A GB 4980171 A GB4980171 A GB 4980171A GB 4980171 A GB4980171 A GB 4980171A GB 1339468 A GB1339468 A GB 1339468A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- speed
- signal
- braking
- regulator
- 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
Links
- 238000004804 winding Methods 0.000 abstract 8
- 230000000903 blocking effect Effects 0.000 abstract 2
- 238000013459 approach Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/20—Adjusting or stopping working-spindles in a predetermined position
-
- 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
- B23Q15/26—Control or regulation of position of tool or workpiece of angular position
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B69/00—Driving-gear; Control devices
- D05B69/22—Devices for stopping drive when sewing tools have reached a predetermined position
- D05B69/26—Devices for stopping drive when sewing tools have reached a predetermined position with automatic means to reduce speed of drive, e.g. in one or more steps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Position Or Direction (AREA)
Abstract
1339468 Stopping machines at definite positions; electric and speed control QUICKROTAN BECKER & NOTZ KG 26 Oct 1971 [5 Nov 1970] 49801/71 Heading F2E [Also in Division G3] A machine shaft 4, Fig. 1, or a shaft connected to it, is stopped in a predetermined angular position by an electromagnetically-actuatable brake 5, 8, 9, under the control of a regulator circuit 10 provided with an appropriate braking signal for controlling the braking torque; stopping in the predetermined position is ensured by deriving the braking signal, at least during the final part of the braking action, in the following manner: (a) measuring (continuously) at 11 the rotational speed of the machine shaft, (b) calculating at 14 the angle of rotation required for the shaft to come to rest from the then speed under a braking torque less than the maximum of which the brake is capable, (c) measuring at 15 the angular displacement of the shaft from the desired stopping position and (d) comparing the two angular values at 16. As shown, apparatus for maintaining constant a given speed of revolution of shaft 4, and stated to be known, comprises a motor 1 having a shaft 2 and flywheel 3 rotating constantly at the maximum speed, and an output shaft 4 carrying a clutch plate 5 and a driving pulley 6. The clutch plate may be brought into engagement with the flywheel 3 by energization of a clutch winding 7, and into engagement with a braking abutment 9 by energization of a brake winding 8. The desired rotational speed of a machine shaft driven by output shaft 4 is selected on a rotational speed "transmitter" 12, and its output signal is compared in a comparator 13 with that from the rotational speed-measuring circuit element 11. According to the invention, circuit elements 14 to 16 are added, element 14 making use of the signal from speed-measuring element 11. To stop the machine shaft, "transmitter" 12 is set to zero, and circuit elements 14, 15 are brought into action. The signal from comparator 13 deriving from elements 11, 12, initiates braking, at first powerful, of shaft 4. The influence of the output signal of comparator 16 on regulator 10 increases as the actual speed of revolution approaches the zero speed selected. The shaft is decelerated until the output signals of elements 11, 12, are equal, and those of elements 14, 15, are correspondingly equal, the output of comparator 13 being now zero. Fig. 3 shows a more sophisticated arrangement which also includes provision for stopping the machine a second time at a position spaced less than 360 degrees (e.g. 180 degrees), from the first. Starting with the machine-shaft idle, when a desired speed of rotation is selected at "transmitter" 12, a signal through stage 30 to flip-flop 31 causes an unblocking signal along path 38 to release gate 19 so that signals from a summing amplifier 26 reach regulator 10. Flipflop 32 driven by a signal from 12 operates a stage 29 to block the path of signals from a circuit 27 (associated with the second stop) to summing amplifier 26. Stage 28 is unblocked along path 41, but gate 17 (part of the circuitry for the first stop) at this time blocks any signals from comparator 16 (a summing amplifier). The actual shaft speed is signalled by a differentiating stage 24 which receives a signal from the anglemeasuring device 15 and takes the place of circuit element 11. Initially the difference between the signals from 12 and 24 is large, so amplifier 26 causes regulator 10 to energise clutch-winding 7, whereby shaft 4 is accelerated. Device 15 (see below) now delivers a sawtooth voltage whose longer slope is measured in stage 24. When the difference, at amplifier 26, between the desired and actual speed signals becomes zero, clutch winding 7 is de-energized. Thereafter, the speed is maintained constant as outlined in the second paragraph. To stop the machine shaft in the first position, "transmitter" 12 is set to zero. A blocking signal along path 39 disappears, but gate 17, controlled by circuit element 18, still blocks signals from amplifier 16. Thus only a large signal representing the difference between the high actual shaft speed and zero desired speed reaches regulator 10, so brake winding 8 is fully energized. The shaft is thus braked with maximum braking torque independently of the output of 16. When the actual speed has dropped to a predetermined value, element 18 unblocks gate 17. whereupon elements 14 to 16 are brought into play, and through 28, 26 and 19 serve to reduce the energization of brake winding 8 until the shaft comes to rest. A switching element 35 now delivers a signal (to) from element 15 to input e2 of flip-flop 31, resetting it, thereby blocking gate 19 alongpath 38. Regulator 10 is thereby disconnected from amplifier 26, and the windings 7, 8 are de-energized. The machine shaft may now be turned freely by hand. The second stopping position circuit 27 compares the actual angle signal of the anglemeasuring element 15 to a reference voltage U B . As long as the actual angle signal is smaller than the reference voltage, comparator 13 receives a signal causing energization of clutch winding 7. The machine shaft thus begins to turn again. As soon as the actual angle signal equals the reference voltage, circuit 27 issues a braking order to regulator 10 through unblocking stage 29, summing amplifier 26 and gate 19. The machine shaft is thus braked and held in the second position. An angle-measuring element is shown in Figs 8 and 9 and incorporates a rotor 60 to be secured to the machine shaft, pole plates 80, 81, and a measuring head 65 incorporating a Hale generator. In a modification (not accompanied by a drawing) the speed of revolution of the machine shaft is determined by a tacho-generator, and the actual angle turned through is obtained from an integration stage following the tachogenerator.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2054501 | 1970-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1339468A true GB1339468A (en) | 1973-12-05 |
Family
ID=5787255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4980171A Expired GB1339468A (en) | 1970-11-05 | 1971-10-26 | Method and device for immobilisation of a machine shaft in a pre determined angular position |
Country Status (10)
Country | Link |
---|---|
US (1) | US3761790A (en) |
JP (1) | JPS549266B1 (en) |
CH (1) | CH528779A (en) |
DE (1) | DE2054501B1 (en) |
ES (1) | ES395738A1 (en) |
FR (1) | FR2113634A5 (en) |
GB (1) | GB1339468A (en) |
HK (1) | HK10678A (en) |
IT (1) | IT939854B (en) |
NL (1) | NL162151C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114543590A (en) * | 2022-02-25 | 2022-05-27 | 盾石磁能科技有限责任公司 | Method, device, terminal and storage medium for dual acceleration system control |
Families Citing this family (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958166A (en) * | 1972-03-16 | 1976-05-18 | National Research Development Corporation | Speed adjusting apparatus |
JPS5714875B2 (en) * | 1973-03-23 | 1982-03-26 | ||
DE2326275C2 (en) * | 1973-05-23 | 1982-10-21 | Quick-Rotan Becker & Notz Kg, 6100 Darmstadt | Electric drive for driving two working machine shafts |
US3906315A (en) * | 1974-01-15 | 1975-09-16 | Aerojet General Co | Closed-loop, precision-stop induction motor control circuit |
US3972297A (en) * | 1974-01-30 | 1976-08-03 | Union Special Corporation | Sewing machine position and speed sensing system |
US3949582A (en) * | 1975-04-11 | 1976-04-13 | Eaton-Leonard Corporation | Positioning servo and controlled mechanism |
CH591350A5 (en) * | 1975-05-30 | 1977-09-15 | Bbc Brown Boveri & Cie | |
JPS5943193B2 (en) * | 1975-09-23 | 1984-10-20 | 株式会社日立製作所 | Industrial sewing machine control device |
JPS5313125A (en) * | 1976-07-23 | 1978-02-06 | Aisin Seiki | Safety device for sewing machine motor control circuit |
DE2657658A1 (en) * | 1976-12-20 | 1978-06-22 | Quick Rotan Becker & Notz Kg | POSITIONING DRIVE |
US4108090A (en) * | 1977-03-21 | 1978-08-22 | The Singer Company | Programmable variable speed for sewing machine |
US4195585A (en) * | 1977-03-30 | 1980-04-01 | Hitachi, Ltd. | Protection apparatus for electric sewing mechine |
US4233919A (en) * | 1977-07-13 | 1980-11-18 | Hitachi, Ltd. | Sewing machine protection apparatus |
US4147120A (en) * | 1977-09-14 | 1979-04-03 | Union Special Corporation | Auxiliary feed mechanism for sewing machines |
JPS5553278Y2 (en) * | 1978-02-09 | 1980-12-10 | ||
DE2825969A1 (en) * | 1978-06-14 | 1979-12-20 | Zangs Ag Maschf | PROCEDURE FOR DETERMINING THE SWITCHING POINTS FOR SPECIAL FUNCTIONS OF AUTOMATIC EMBROIDERY, QUILTING AND SEWING MACHINES |
JPS5593849A (en) * | 1978-12-30 | 1980-07-16 | Toyoda Automatic Loom Works | Timing setting method and apparatus in loom |
DE2938040A1 (en) * | 1979-09-20 | 1981-04-09 | Quick Elektromotoren-Werk GmbH, 6100 Darmstadt | Sewing machine position adjustment drive - has microprocessor set of at least eight bits |
DE3003138A1 (en) * | 1980-01-29 | 1981-07-30 | Quick Elektromotoren Werk Gmbh | SETPOINT VALUES FOR DRIVE CONTROLS |
JPS5731353A (en) * | 1980-07-31 | 1982-02-19 | Matsushita Electric Ind Co Ltd | Speed detector for sewing machine |
JPS5797118A (en) * | 1980-12-09 | 1982-06-16 | Matsushita Electric Ind Co Ltd | Speed setter of sewing machine |
US4392098A (en) * | 1981-10-16 | 1983-07-05 | Pt Components, Inc. | RPM Sensor for electronic motor braking |
DE3151392A1 (en) * | 1981-12-24 | 1983-07-07 | Quick-Rotan Elektromotoren GmbH, 6100 Darmstadt | SPEED-CONTROLLED SEWING DRIVE |
US4513676A (en) * | 1982-08-30 | 1985-04-30 | Microdynamics, Inc. | Method and apparatus for automatically decelerating and stopping a sewing machine motor |
KR860002174B1 (en) * | 1982-09-25 | 1986-12-22 | 마쯔시다덴기산교 가부시기가이샤 | Driving device of sewing machine |
RO82939A2 (en) * | 1983-01-24 | 1985-10-31 | Institutul De Cercetare Stiintifica Si Inginerie Tehnologica Pentru Industria Electrotehnica,Ro | ELECTRONIC CONTROL INSTALLATION OF CONTROL SYSTEMS FOR ACTUATION SYSTEMS WITH ELECTROMAGNETIC COUPLINGS FOR SEWING AND / OR FASTENING MACHINES |
JPS59136093A (en) * | 1983-01-25 | 1984-08-04 | Mitsubishi Electric Corp | Speed controlling circuit for sewing machine |
JPS60255081A (en) * | 1984-05-30 | 1985-12-16 | Mitsubishi Electric Corp | Speed control system of sewing maghine |
JPS61249494A (en) * | 1985-04-27 | 1986-11-06 | ジューキ株式会社 | Cloth feed amount automatic altering apparatus of sewing machine |
US4776528A (en) * | 1987-09-03 | 1988-10-11 | Eastman Kodak Company | Apparatus for positioning a takeup reel to receive the lead end of a web |
JP2700550B2 (en) * | 1987-11-06 | 1998-01-21 | 蛇の目ミシン工業株式会社 | Lock stitch control device for electronic sewing machine |
US5130584A (en) * | 1991-08-07 | 1992-07-14 | Litton Industrial Automation Systems, Inc. | Slide with synchronized drive with slip clutch |
DE19518390C2 (en) * | 1995-05-19 | 1999-02-18 | Inofex Gmbh | Method and circuit arrangement for controlling and regulating a drive system for processing a raw material, preferably for meat processing machines |
US5872434A (en) * | 1997-08-28 | 1999-02-16 | Barber Colman Company | Systems and methods for actuator power failure response |
US5847530A (en) * | 1997-08-28 | 1998-12-08 | Barber Colman | Systems and methods for torque control of actuator and brushless DC motor therein |
US5838124A (en) * | 1997-08-28 | 1998-11-17 | Barber Colman | Systems and methods for braking of actuator and brushless DC motor therein |
SE528392C2 (en) | 2005-03-11 | 2006-10-31 | Atlas Copco Rock Drills Ab | Sensor installation in a gearbox for positioning |
DE102005023929B3 (en) * | 2005-05-24 | 2006-09-14 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Projectile loom, with a projectile to carry a weft yarn length through the shed, is operated at a slow speed for the first weaving cycle on starting and then accelerated to the normal working speed level |
DE102006061580A1 (en) * | 2006-12-27 | 2008-07-03 | Robert Bosch Gmbh | Rotating shaft speed determining method, involves transferring impulse to controller, and correcting numerical value with correction value that is determined from comparison of actual time period with reference-time period |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3125050A (en) * | 1964-03-17 | Bertrand | ||
US2537269A (en) * | 1948-03-18 | 1951-01-09 | Ex Cell O Corp | Spindle positioning device |
US2753502A (en) * | 1952-12-02 | 1956-07-03 | Bardons And Oliver Inc | Electric motor control for spindle positioner |
US2767363A (en) * | 1953-09-10 | 1956-10-16 | Sperry Rand Corp | Limit-stop control system |
DE1710892B1 (en) * | 1962-04-28 | 1970-05-14 | Georgii Kobold Elektromotoren | Drive device for sewing machines |
US3412260A (en) * | 1963-09-20 | 1968-11-19 | Frankl & Kirchner | Electrical drive means, particularly for sewing machines |
US3439249A (en) * | 1967-01-16 | 1969-04-15 | Warner Electric Brake & Clutch | Control for actuating an electric brake to stop a driven load upon loss of electrical power |
FR2012522A1 (en) * | 1968-07-09 | 1970-03-20 | Quick Rotan Becker & Notz Kg | |
US3659172A (en) * | 1970-02-12 | 1972-04-25 | Hitachi Ltd | Motor controlling device |
-
1970
- 1970-11-05 DE DE2054501A patent/DE2054501B1/en active Pending
-
1971
- 1971-09-15 CH CH1348971A patent/CH528779A/en not_active IP Right Cessation
- 1971-09-22 IT IT70119/71A patent/IT939854B/en active
- 1971-10-05 ES ES395738A patent/ES395738A1/en not_active Expired
- 1971-10-08 JP JP7881171A patent/JPS549266B1/ja active Pending
- 1971-10-16 NL NL7114265.A patent/NL162151C/en not_active IP Right Cessation
- 1971-10-26 GB GB4980171A patent/GB1339468A/en not_active Expired
- 1971-11-04 US US00195757A patent/US3761790A/en not_active Expired - Lifetime
- 1971-11-05 FR FR7139801A patent/FR2113634A5/fr not_active Expired
-
1978
- 1978-02-23 HK HK106/78A patent/HK10678A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114543590A (en) * | 2022-02-25 | 2022-05-27 | 盾石磁能科技有限责任公司 | Method, device, terminal and storage medium for dual acceleration system control |
Also Published As
Publication number | Publication date |
---|---|
NL162151C (en) | 1980-04-15 |
JPS549266B1 (en) | 1979-04-23 |
NL7114265A (en) | 1972-05-09 |
NL162151B (en) | 1979-11-15 |
IT939854B (en) | 1973-02-10 |
HK10678A (en) | 1978-03-03 |
ES395738A1 (en) | 1973-11-16 |
US3761790A (en) | 1973-09-25 |
CH528779A (en) | 1972-09-30 |
DE2054501B1 (en) | 1971-12-30 |
FR2113634A5 (en) | 1972-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |