EP1373618A1 - Nehmergreifer für eine greiferwebmaschine - Google Patents
Nehmergreifer für eine greiferwebmaschineInfo
- Publication number
- EP1373618A1 EP1373618A1 EP02703622A EP02703622A EP1373618A1 EP 1373618 A1 EP1373618 A1 EP 1373618A1 EP 02703622 A EP02703622 A EP 02703622A EP 02703622 A EP02703622 A EP 02703622A EP 1373618 A1 EP1373618 A1 EP 1373618A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- head
- guide means
- clamping
- clamping hook
- 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
Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
- D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
- D03D47/20—Constructional features of the thread-engaging device on the inserters
- D03D47/23—Thread grippers
- D03D47/236—Drawing grippers
Definitions
- the invention relates to a slave rapier for a rapier weaving machine, at the front end of which a clamping hook with a clamping surface is provided, to which a counter-clamping surface of a head of a two-armed lever pivotally mounted about a pivot axis is assigned.
- Such a slave gripper is known, for example, from US Pat. No. 3,986,532.
- the two-armed lever is arranged within a longitudinal slot of a component provided with the clamping hook.
- the clamping hook has a profiled clamping surface, which is assigned a correspondingly profiled counter surface of the head of the lever.
- slave grippers are used which do not have a pivotable two-armed lever, but rather a finger which can be displaced in the longitudinal direction of the gripper relative to the clamping hook.
- Such grippers are known for example from US Patents 4,736,777 and 4,739,805.
- the fingers are held on an actuating lever by means of a swivel joint and are guided on the hook in the region of their head.
- the object of the invention is to simplify the structure of such a gripper and to increase its functionality.
- the guide means form a form-fitting guide transverse to the direction of movement of the head of the lever. With such a form-fitting guide no resilient loading elements or the like. needed to prevent relative movements.
- the profiles of the hook and / or the head extend into the clamping surface and / or the counter-clamping surface.
- the production of these profiles as a continuation of the profiles used to guide the front end of the head is simple since it is carried out with the same tools.
- the profiles in the area of the clamping surface and / or the counter-clamping surface result in a thread being clamped securely, even if relatively small clamping forces are provided.
- the guide means of the hook and the guide means of the head are set back with respect to the outer contour of the hook. This ensures that these guide means do not come into contact with warp threads during weaving and can cause the warp threads to get caught and / or be damaged.
- FIG. 1 shows a partial view of a gripper according to the invention
- Fig. 3 is a plan view on a larger scale on the area of
- Clamping hook of the slave gripper in the closed position shows the view according to FIG. 3 in the open position
- FIG. 6 is a view similar to FIG. 4 on a modified embodiment
- FIG. 7 shows a section similar to FIG. 5 through a further embodiment
- Fig. 8 is a plan view of a further embodiment
- Fig. 9 is a view in the direction of arrow IX. on the Asutechrugnsform according to FIG. 8.
- the slave gripper shown in FIG. 2 has a component or base body 10 which is fastened to a guide part 11 which extends a gripper belt (not shown).
- the component 10 which is made of metal, plastic or ceramic, is provided with a clamping hook 12 at its front end.
- a bolt or journal 13 protrudes from the component 10 and serves as a pivot axis for a two-armed lever 14, which is also made of ceramic, plastic or metal.
- the end of one arm of the two-armed lever 14 is designed as a head 15, which forms a counter-clamping surface, which works together with a clamping surface of the clamping hook 12.
- the end of the other arm of the lever 14 is designed as an actuating element 16 which protrudes laterally from the gripper and to which a stop is assigned, by means of which the lever 14 can be opened for opening against this stop when it starts up.
- the lever 14 is loaded with a prestressed spring, for example a compression spring 17, which ensures that the counter-clamping surface of the head 15 of the lever 14 bears against the clamping surface of the clamping hook 12 with a defined force.
- a cover element (not shown), which covers the area of the compression spring 17 and is fastened to the component 10, serves as an abutment for the compression spring 17.
- This cover element is expediently designed such that it also serves as a connecting element which connects the guide part 11 to the gripper belt, not shown.
- the cover element is made of metal or plastic and is provided with guide strips or guide edges which prevent the gripper belt and / or the guide part 11 from coming into contact with warp threads.
- the front end of the head 15 of the lever is provided with guide means 18 in the form of a plurality of ribs and grooves located therebetween (FIG. 5), which engage with correspondingly designed guide means 19 of the clamping hook 12.
- the guide means 18, 19 extend transversely to the pivot axis of the lever 14 formed in front of the bolt 13, so that they guide the lever 14 in the axial direction to the pivot axis.
- the guide means 18, 19 form a form-fitting guide transverse to the direction of movement of the head 15 of the lever, so that the head 15 of the lever cannot move axially to the pivot axis due to oscillations or vibrations.
- the guide means 18, 19 in the form of V-shaped ribs and grooves also extend into the clamping surface of the clamping hook 12 and into the counter-clamping surface of the head 15 in the exemplary embodiment.
- These profiles can be simply and continuously by means of a milling tool and / or grinding tool Realize profiling.
- the guide means 19 are also worked into the area opposite the clamping surface of the clamping hook 12 and run out there.
- the guide means 18, 19 each consist of several essentially identical grooves and ribs. Deviations from this shape are easily possible, in particular the number of ribs and grooves can be increased or decreased.
- the ribs and grooves do not all have to be identical to one another.
- the profiles, which extend into the region of the clamping surface of the clamping hook 12 and the counter-clamping surface of the head 15, can differ from the guide means guiding the end region of the head 15 his.
- the grooves can be deeper and / or the ribs shorter in the area of the clamping surface and the counter surface.
- the ribs and grooves, which form the guide means 19 of the clamping hook 12, run tangentially or concentrically to the pivot axis formed by the bolt 13 in the region which is assigned to the front end of the head 15 of the lever 14.
- a recess 20 is provided in the clamping hook between the profiles 19 formed from ribs and grooves, which are assigned to the profiles 18 of the front end of the head 15 of the lever 14, and the extensions inserted into the clamping surface. This makes it possible to guide a thread in this recess 20 when it is released, without it having to move along the profilings forming the guide means 19.
- the component 10 has an essentially flat upper side, to which the lever 14 extends parallel.
- a border 21 protrudes from this flat surface of the component 10 and ends with guide edges 22, 23 in the plane of the component 10.
- This border 21 is provided on the inside with the guide means 19 for the head 15 of the lever 14.
- the front end of the clamping hook is pointed and lies approximately at the level of the underside of component 10. The tip thickens in a wedge shape in the direction of the border.
- FIG. 7 shows an embodiment similar to FIG. 5, in which the front end of the head 15 of the lever 14 is covered at the top and bottom by means of shields 24 of the hook-shaped part of the base body 10. These shields 24, which are also located on both sides of the head 15, serve to reduce the risk of threads entering the region of the clamping hook 12.
- the clamping surface of the clamping hook 12 and / or the counter-clamping surface of the head 15 are not profiled in a modified embodiment.
- the component 10 'to which the lever 14 is articulated is cranked in its end region in such a way that the clamping hook 12 and the lever 14' indicated with dotted lines are in a common level.
- the area of the component 10 'opposite the clamping hook 12 is provided with a longitudinal slot 25 through which the lever 14' with its head 15 'can be moved.
- the component 10 ' forms a bracket 26 which covers the area of the head 15' of the lever 14 'upwards.
- a guide rib 27 projects upwards from this bracket 26 and runs parallel to the clamping hook 12 and thus essentially in the longitudinal direction of the slave gripper.
- the invention is not limited to the exemplary embodiments shown.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Clamps And Clips (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10114755 | 2001-03-21 | ||
DE10114755A DE10114755A1 (de) | 2001-03-21 | 2001-03-21 | Nehmergreifer für eine Greiferwebmaschine |
PCT/EP2002/002411 WO2002077343A1 (de) | 2001-03-21 | 2002-03-06 | Nehmergreifer für eine greiferwebmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1373618A1 true EP1373618A1 (de) | 2004-01-02 |
EP1373618B1 EP1373618B1 (de) | 2007-07-25 |
Family
ID=7679050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02703622A Expired - Lifetime EP1373618B1 (de) | 2001-03-21 | 2002-03-06 | Nehmergreifer für eine greiferwebmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US6866069B2 (de) |
EP (1) | EP1373618B1 (de) |
CN (1) | CN1258623C (de) |
AT (1) | ATE368141T1 (de) |
DE (2) | DE10114755A1 (de) |
ES (1) | ES2289084T3 (de) |
WO (1) | WO2002077343A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009135636A1 (en) | 2008-05-07 | 2009-11-12 | Picanol N.V. | Receiving gripper, feed gripper and device for a gripper weaving machine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10114756A1 (de) * | 2001-03-21 | 2002-09-26 | Picanol Nv | Nehmergreifer für eine Greiferwebmaschine |
DE10134504A1 (de) * | 2001-07-05 | 2003-01-16 | Picanol Nv | Verfahren und Vorrichtung zum Öffnen einer Greiferklemme eines Greifers einer Webmaschine |
DE102005014107A1 (de) * | 2005-03-22 | 2006-09-28 | Picanol N.V. | Nehmergreifer mit einem hakenförmigen Einsatz und Verfahren zum Herstellen des hakenförmigen Einsatzes |
BE1023036A1 (nl) | 2015-05-07 | 2016-11-09 | Picanol Nv | Grijperopener voor een weefmachine |
BE1024494B1 (nl) * | 2016-08-11 | 2018-03-12 | Picanol Naamloze Vennootschap | Grijperband en grijpereenheid voor een grijperweefmachine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES343664A1 (es) * | 1967-07-13 | 1968-09-01 | Balaguer Golobart | Perfeccionamientos en los organos aprehensores de hilos de trama en los elementos insertadores. |
BG17344A3 (bg) * | 1969-11-11 | 1973-07-25 | Lindauer Dornier Gmbh | Устройство за нанасяне на вътъчната нишка при безсовалкови тъкачни машини |
US3986532A (en) * | 1975-09-23 | 1976-10-19 | Rockwell International Corporation | Weft extending carrier |
AT377540B (de) * | 1982-11-05 | 1985-03-25 | Saurer Ag Adolph | Schussfadengreifer fuer eine webmaschine |
BE902141A (nl) * | 1985-04-09 | 1985-10-09 | Picanol Nv | Verbeterde grijpers voor weefmachines. |
EP0864679B1 (de) * | 1997-03-14 | 2002-12-18 | Sulzer Textil AG | Greiferklemme für einen Bringergreifer und Webmaschine mit Greiferklemme |
-
2001
- 2001-03-21 DE DE10114755A patent/DE10114755A1/de not_active Withdrawn
-
2002
- 2002-03-06 DE DE50210552T patent/DE50210552D1/de not_active Expired - Lifetime
- 2002-03-06 AT AT02703622T patent/ATE368141T1/de not_active IP Right Cessation
- 2002-03-06 WO PCT/EP2002/002411 patent/WO2002077343A1/de active IP Right Grant
- 2002-03-06 CN CNB028068890A patent/CN1258623C/zh not_active Expired - Lifetime
- 2002-03-06 ES ES02703622T patent/ES2289084T3/es not_active Expired - Lifetime
- 2002-03-06 US US10/471,293 patent/US6866069B2/en not_active Expired - Lifetime
- 2002-03-06 EP EP02703622A patent/EP1373618B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO02077343A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009135636A1 (en) | 2008-05-07 | 2009-11-12 | Picanol N.V. | Receiving gripper, feed gripper and device for a gripper weaving machine |
Also Published As
Publication number | Publication date |
---|---|
EP1373618B1 (de) | 2007-07-25 |
WO2002077343A1 (de) | 2002-10-03 |
US6866069B2 (en) | 2005-03-15 |
CN1498294A (zh) | 2004-05-19 |
ES2289084T3 (es) | 2008-02-01 |
CN1258623C (zh) | 2006-06-07 |
DE10114755A1 (de) | 2002-09-26 |
DE50210552D1 (de) | 2007-09-06 |
US20040173278A1 (en) | 2004-09-09 |
ATE368141T1 (de) | 2007-08-15 |
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