GB1580604A - Mehtod of and device for driving a cylinder of a textile machine - Google Patents
Mehtod of and device for driving a cylinder of a textile machine Download PDFInfo
- Publication number
- GB1580604A GB1580604A GB21098/78A GB2109878A GB1580604A GB 1580604 A GB1580604 A GB 1580604A GB 21098/78 A GB21098/78 A GB 21098/78A GB 2109878 A GB2109878 A GB 2109878A GB 1580604 A GB1580604 A GB 1580604A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- driving
- radius
- motors
- pertaining
- 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
- 239000004753 textile Substances 0.000 title claims description 18
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 19
- 238000009960 carding Methods 0.000 claims description 14
- 230000005672 electromagnetic field Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000005291 magnetic effect Effects 0.000 abstract 2
- 238000010276 construction Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 5
- 239000003302 ferromagnetic material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
- D01G15/12—Details
- D01G15/36—Driving or speed control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
To achieve a simple construction, the two end faces (6) of the main drum (1) of a card are each provided with a ferromagnetic conductive ring (7). These two rings (7) each form, together with a stationary part (4) generating a magnetic field, a flat linear asynchronous motor (4, 7). A change in the rotational speed of the drum is brought about by displacing the stationary motor parts (4) generating the magnetic field along the radius (r) of the drum end faces and/or by changing the angle of inclination (@) of the longitudinal axis of the stationary motor parts (4) relative to the radius of the drum end faces. <IMAGE>
Description
(54) METHOD OF AND DEVICE FOR DRIVING
A CYLINDER OF A TEXTILE MACHINE
(71) We, CENTRALNY OSRODEK
BADAWCZO-ROZWOJOWY MASZYN
WLOKIENNICZYCH "POLMATEX
CENARO", ul. Wolczanska 557/59, 9W950 Lodz, Poland, a Polish Company, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- The present invention relates to a method of driving a cylinder of a textile machine, and more particularly the main cylinder of a textile carding machine used to process cotton and man-made fibres.
It is known to drive a cylinder of a textile machine by means of a rotary electrical motor, the power of which is transmitted to the driven cylinder by drive transmission means, such as gears, shafts or clutches.
The method of driving the main cylinder of a carding machine disclosed in Polish
Patent Specification No. 42,780 consists in transmitting rotary motion of the motor to the cylinder by means of a gear. The motor is located inside of the cylinder and is mounted by means of brackets on a stationary shaft. In Polish Patent
Specification No. 59,712, the motor drives a central gearbox through a flexible transmission gear, the drive from the gearbox being further transmitted through a belt transmission gear to the main cylinder of the carding machine, and then through other belt transmission gears to the remaining working elements of the machine.
In still another known drive for the main cylinder of a carding machine, the main drive motor is built into the machine frame and is provided with a centrifugal friction clutch which serves to lower the power requirement during start-up of the machine.
The method according to the invention of driving the main cylinder of a textile machine, and more particularly of a textile carding machine, consists in setting the main cylinder into rotary motion under the influence of electromagnetic field forces which are produced by motors provided for driving the cylinder and act on the end surfaces of the cylinder.
The speed of the cylinder can be varied by shifting each drive motor along the radius of the pertaining end face of the cylinder, and/or by varying the angle of inclination of each driving motor in relation to the radius of the pertaining end surface of the cylinder.
Each driving motor is preferably of the flat linear asynchronous type attached to the machine frame at a suitable distance from the cylinder to be driven, and the rotor thereof a ring of electrically conductive ferromagnetic material or laminated conductive and ferromagnetic material attached to the pertaining end surface of the cylinder.
The method of the invention eliminates the use of transmission means which would be otherwise required for driving the cylinder, especially of clutches and gears, thereby making the drive very simple. The use of flat linear asynchronous motors ensures that the main cylinder of the carding machine can be started and stopped smooil.';.
An embodiment of the invention will now be described, by way of example, with reference to the accompanying diagrammatic drawing, in which Fig. 1 is a general view of the main cylinder of a textile carding machine, and Fig. 2 is a view of one end face of the cylinder with the driving motor.
The cylinder 1, mounted on a shaft 2 by bearings 3, is driven by flat linear motors 4 arranged symmetrically on the machine frame. The active surfaces 5 of the motors 4 are arranged parallel to the end surfaces 6 of the main cylinder I of the carding machine. Copper-coated rings 7 are attached to the surfaces 6.
The rings 7 form the rotors of the flat linear synchronous motors 4. An air gap a is provided between each rotor and the active surface 5 of the motor 4 at the pertaining end of the cylinder 1. The gap a enables free rotation of the cylinder 1 driven by the tangential components, Fs, of the electromagnetic field forces produced by the motors 4. The motors 4 are mounted so that it is possible to move them along the radius r of the cylinder end surfaces 6 and to vary the value of the angle cup formed by the axis of the motor and the radius r. The synchronous speed of the carding machine main cylinder can thereby be varied according to the formula
Vo O= F(r)=
r and the synchronous speed is a function of the resistance, Fo, experienced by the cylinder I during its motion, and of the slip
S.
Vo[l-s(r cos (pFb)] s"=F(r cos vFb)= r
During starting and operation of the cylinder I the motors 4 are powered from three-phase A.C. mains, and during stopping from single-phase A.C. mains.
WHAT WE CLAIM IS:
1. A method of driving a cylinder of a textile machine, especially the main cylinder of a textile carding machine, comprising rotating the cylinder under the influence of electromagnetic field forces which are produced by driving motors and which act on the end surfaces of the cylinder.
2. A method as claimed in Claim 1, comprising shifting each driving motor along the radius of the pertaining cylinder end surface to adjust the speed of the cylinder.
3. A method as claimed in Claim 1, comprising varying the angle of inclination of each driving motor axis in relation to the radius of the pertaining cylinder end surface to adjust the speed of the cylinder.
4. A method as claimed in any preceding claim in which each driving motor is of the flat linear asynchronous type and the rotor thereof is formed by a ferromagnetic and electrically conductive ring attached to the pertaining cylinder end surface.
5. A method of driving a cylinder of a textile machine, especially the main cylinder of a textile carding machine, substantially as hereinbefore described with reference to the accompanying drawing.
6. A textile machine having a cylinder equipped to be driven by the method claimed in any preceding claim.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (6)
1. A method of driving a cylinder of a textile machine, especially the main cylinder of a textile carding machine, comprising rotating the cylinder under the influence of electromagnetic field forces which are produced by driving motors and which act on the end surfaces of the cylinder.
2. A method as claimed in Claim 1, comprising shifting each driving motor along the radius of the pertaining cylinder end surface to adjust the speed of the cylinder.
3. A method as claimed in Claim 1, comprising varying the angle of inclination of each driving motor axis in relation to the radius of the pertaining cylinder end surface to adjust the speed of the cylinder.
4. A method as claimed in any preceding claim in which each driving motor is of the flat linear asynchronous type and the rotor thereof is formed by a ferromagnetic and electrically conductive ring attached to the pertaining cylinder end surface.
5. A method of driving a cylinder of a textile machine, especially the main cylinder of a textile carding machine, substantially as hereinbefore described with reference to the accompanying drawing.
6. A textile machine having a cylinder equipped to be driven by the method claimed in any preceding claim.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL1977198678A PL109553B1 (en) | 1977-06-03 | 1977-06-03 | Method and apparatus for driving main carding machine drums |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1580604A true GB1580604A (en) | 1980-12-03 |
Family
ID=19982940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21098/78A Expired GB1580604A (en) | 1977-06-03 | 1978-05-22 | Mehtod of and device for driving a cylinder of a textile machine |
Country Status (8)
| Country | Link |
|---|---|
| CH (1) | CH631496A5 (en) |
| DD (1) | DD135510A5 (en) |
| DE (1) | DE2822712C2 (en) |
| FR (1) | FR2393089A1 (en) |
| GB (1) | GB1580604A (en) |
| IT (1) | IT1096445B (en) |
| PL (1) | PL109553B1 (en) |
| SU (1) | SU716526A3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2430942A (en) * | 2005-10-07 | 2007-04-11 | Truetzschler Gmbh & Co Kg | Roller with integrated electric motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE389065T1 (en) | 2004-12-03 | 2008-03-15 | Robel Bahnbaumaschinen Gmbh | SCREW MACHINE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE610161C (en) * | 1931-03-20 | 1935-03-04 | Peter A Fridkin Dipl Ing | Card with electric drive |
| DE881241C (en) * | 1951-04-25 | 1953-06-29 | Ilyas Abdulla | Single or multi-phase AC motor with mechanical speed control |
| US2856573A (en) * | 1954-01-01 | 1958-10-14 | Nat Res Dev | Induction motors |
| GB1206588A (en) * | 1966-10-05 | 1970-09-23 | Matthews & Yates Ltd | Improvements in or relating to brushless rotary electric motors |
-
1977
- 1977-06-03 PL PL1977198678A patent/PL109553B1/en unknown
-
1978
- 1978-05-17 CH CH533878A patent/CH631496A5/en not_active IP Right Cessation
- 1978-05-22 GB GB21098/78A patent/GB1580604A/en not_active Expired
- 1978-05-24 DE DE2822712A patent/DE2822712C2/en not_active Expired
- 1978-05-29 FR FR7815940A patent/FR2393089A1/en not_active Withdrawn
- 1978-05-31 DD DD78205690A patent/DD135510A5/en unknown
- 1978-06-01 SU SU782620553A patent/SU716526A3/en active
- 1978-06-02 IT IT24182/78A patent/IT1096445B/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2430942A (en) * | 2005-10-07 | 2007-04-11 | Truetzschler Gmbh & Co Kg | Roller with integrated electric motor |
| US7730590B2 (en) | 2005-10-07 | 2010-06-08 | Truetzschler Gmbh & Co. Kg | Apparatus at a spinning preparation machine having at least one electric motor-driven roller |
| GB2430942B (en) * | 2005-10-07 | 2010-09-22 | Truetzschler Gmbh & Co Kg | Apparatus on a spinning preparation machine having at least one electric motor-driven roller |
| CN1952229B (en) * | 2005-10-07 | 2011-05-18 | 特鲁菲舍尔股份有限公司及两合公司 | Apparatus at a spinning preparation machine having at least one electric motor-driven roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CH631496A5 (en) | 1982-08-13 |
| FR2393089A1 (en) | 1978-12-29 |
| IT7824182A0 (en) | 1978-06-02 |
| PL109553B1 (en) | 1980-06-30 |
| DD135510A5 (en) | 1979-05-09 |
| IT1096445B (en) | 1985-08-26 |
| DE2822712A1 (en) | 1978-12-07 |
| PL198678A1 (en) | 1979-02-26 |
| DE2822712C2 (en) | 1984-04-26 |
| SU716526A3 (en) | 1980-02-15 |
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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 |