EP0882824A1 - Mechanism to select the slow running condition and find the pick in weaving looms - Google Patents
Mechanism to select the slow running condition and find the pick in weaving looms Download PDFInfo
- Publication number
- EP0882824A1 EP0882824A1 EP98110018A EP98110018A EP0882824A1 EP 0882824 A1 EP0882824 A1 EP 0882824A1 EP 98110018 A EP98110018 A EP 98110018A EP 98110018 A EP98110018 A EP 98110018A EP 0882824 A1 EP0882824 A1 EP 0882824A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- main
- slow running
- gearwheel
- loom
- 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.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 31
- 238000009941 weaving Methods 0.000 title claims abstract description 4
- 238000013519 translation Methods 0.000 claims abstract description 12
- 230000009471 action Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/14—Driving, starting, or stopping arrangements; Automatic stop motions for reducing speed temporarily
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/005—Independent drive motors
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
- D03D51/007—Loom optimisation
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Abstract
Description
- Steady running conditions, with the main clutch I1 engaged and the slow running clutch I2 disengaged (fig. 1A).
- Slow running conditions of the whole loom, with both clutches I1 and I2 engaged (fig. 1B).
- Slow running conditions of the weave machine A and main loom shaft P in idle conditions (for example, pick finding step), with the main clutch I1 disengaged and the slow running clutch I2 engaged (fig. 1C).
- In steady running conditions (fig. 2), the motion is transmitted by the
main shaft P to the
main gearwheel 1 and from this latter - by way of the drivengear 2 and the shaft 4 - to the weave machine A. - In slow running conditions of the whole loom (fig. 3), the motion is
transmitted by the auxiliary motor m, through the
slow running gear 14, on one side - by way of the drivengear 2, themain gearwheel 1 and the spur gear 13 - to the main shaft P of the loom and on the other side - by way of the drivengear 2 and the shaft 4 - to the weave machine A. - In the pick finding step (fig. 4), the motion imparted to the driven
gear 2 by the auxiliary motor m, is no longer transmitted to the main shaft P - in that themain gearwheel 1 is parted from the driven gear 2 - but is merely transmitted to the weave machine A, up to reaching the correct phase angle between thegearwheels 1 and 2 (insertion of the coupling pin into its seat), whereby the steady running conditions of the loom can be reset.
Claims (13)
- Mechanism to select the slow running condition and find the pick in weaving looms, of the type comprising a double gear clutch (I1, I2) wherein a driven gear (2), fixed to a shaft (4) transmitting the motion to a weave machine (A), is apt to alternately or simultaneously mesh with a main gearwheel (1), transmitting the motion from and to the main shaft (P) of the loom, and with a slow running gear (14) receiving the motion from an auxiliary motor (m), characterized in that, both the main gearwheel (1) and the slow running gear (14) are formed of a single body and are apt to perform an axial translation, and in that, at least the meshing between said driven gear (2) and said slow running gear (14) takes place in the manner of a spur gearing.
- Mechanism as in claim 1), wherein also the driven gear (2) is formed of a single body.
- Mechanism as in claim 1) or 2), wherein also the meshing between said driven gear (2) and said main gearwheel (1) takes place in the manner of a spur gearing.
- Mechanism as in claim 1), 2) or 3), wherein said main gearwheel (1) comprises a further spur gearing; through which it meshes with a gear (13) fixed to the main shaft (P) of the loom.
- Mechanism as in any one of the previous claims, wherein the hub (1a) of said main gearwheel (1) comprises, at one end thereof, piston means (11) of a hydraulic actuator (10) for the translation of the main gearwheel (1).
- Mechanism as in claim 5), wherein the hydraulic actuator (10) acts in opposition to thrust springs (8), acting between the main gearwheel (1) and a case (6) of the mechanism.
- Mechanism as in claim 5), wherein the hydraulic actuator (10) is a double-acting actuator.
- Mechanism as in any one of claims 1) to 4), wherein the main gearwheel (1) translates under the action of an electromagnetic actuator (50).
- Mechanism as in any one of the previous claims, wherein the translatable slow running gear (14) meshes with a spur driving gear (16), sufficiently long to keep in constant mesh the teeth of the two gears (14, 16) through all the positions taken up by the slow running gear (14).
- Mechanism as in claim 4), wherein the meshing between said main gearwheel (1) and said gear (13) extends over a length which is shorter than the maximum stroke of the main translatable gearwheel (1).
- Mechanism as in claim 10), wherein two encoders are provided, fixed respectively to the main shaft (P) of the loom and to said shaft (4) transmitting the motion to the weave machine (A), said encoders being apt to supply a reading of the phase displacement angle between said shafts (P, 4).
- Mechanism as in any one of the previous claims, wherein a brake is also provided to act on the auxiliary motor (m), or on a kinematic chain connected thereto.
- Mechanism as in any one of the previous claims, wherein the auxiliary motor (m) is a variable-speed motor.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI971305 | 1997-06-03 | ||
IT97MI001305A IT1292069B1 (en) | 1997-06-03 | 1997-06-03 | SLOW GEAR SELECTION AND PITCH SEARCH DEVICE IN WEAVING LOOMS |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0882824A1 true EP0882824A1 (en) | 1998-12-09 |
EP0882824B1 EP0882824B1 (en) | 2002-04-17 |
Family
ID=11377282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98110018A Expired - Lifetime EP0882824B1 (en) | 1997-06-03 | 1998-06-02 | Mechanism to select the slow running condition and find the pick in weaving looms |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0882824B1 (en) |
DE (1) | DE69804900T2 (en) |
ES (1) | ES2176856T3 (en) |
IT (1) | IT1292069B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0930387A1 (en) * | 1997-12-23 | 1999-07-21 | NUOVA VAMATEX S.p.A. | Improved mechanism to select the slow running condition and find the pick in looms |
CN101058917B (en) * | 2007-05-26 | 2010-11-03 | 万祖干 | Declutch separating type large torque loom reversing mechanism |
CN103981615A (en) * | 2014-05-15 | 2014-08-13 | 浙江理工大学 | Slow-operation driving system of jacquard loom |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2137554A1 (en) * | 1971-05-07 | 1972-12-29 | Nuovo Pignone Spa | |
EP0161012A1 (en) * | 1984-04-06 | 1985-11-13 | Picanol N.V. | Shot seeking mechanism for weaving looms |
EP0322928A1 (en) * | 1987-12-30 | 1989-07-05 | Baruffaldi S.P.A. | Coupling with two clutches, especially for looms |
-
1997
- 1997-06-03 IT IT97MI001305A patent/IT1292069B1/en active IP Right Grant
-
1998
- 1998-06-02 ES ES98110018T patent/ES2176856T3/en not_active Expired - Lifetime
- 1998-06-02 EP EP98110018A patent/EP0882824B1/en not_active Expired - Lifetime
- 1998-06-02 DE DE69804900T patent/DE69804900T2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2137554A1 (en) * | 1971-05-07 | 1972-12-29 | Nuovo Pignone Spa | |
EP0161012A1 (en) * | 1984-04-06 | 1985-11-13 | Picanol N.V. | Shot seeking mechanism for weaving looms |
EP0322928A1 (en) * | 1987-12-30 | 1989-07-05 | Baruffaldi S.P.A. | Coupling with two clutches, especially for looms |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0930387A1 (en) * | 1997-12-23 | 1999-07-21 | NUOVA VAMATEX S.p.A. | Improved mechanism to select the slow running condition and find the pick in looms |
CN101058917B (en) * | 2007-05-26 | 2010-11-03 | 万祖干 | Declutch separating type large torque loom reversing mechanism |
CN103981615A (en) * | 2014-05-15 | 2014-08-13 | 浙江理工大学 | Slow-operation driving system of jacquard loom |
CN103981615B (en) * | 2014-05-15 | 2015-08-19 | 浙江理工大学 | A kind of slow train drive system of jacquard weaving machine |
Also Published As
Publication number | Publication date |
---|---|
ITMI971305A1 (en) | 1998-12-03 |
DE69804900T2 (en) | 2002-10-31 |
EP0882824B1 (en) | 2002-04-17 |
DE69804900D1 (en) | 2002-05-23 |
ES2176856T3 (en) | 2002-12-01 |
IT1292069B1 (en) | 1999-01-25 |
ITMI971305A0 (en) | 1997-06-03 |
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