EP1220960A1 - Nehmergreifer für eine greiferwebmaschine - Google Patents
Nehmergreifer für eine greiferwebmaschineInfo
- Publication number
- EP1220960A1 EP1220960A1 EP00972691A EP00972691A EP1220960A1 EP 1220960 A1 EP1220960 A1 EP 1220960A1 EP 00972691 A EP00972691 A EP 00972691A EP 00972691 A EP00972691 A EP 00972691A EP 1220960 A1 EP1220960 A1 EP 1220960A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- gripper
- guides
- clamping head
- 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 with a rapier housing, at the front end of which a clamping hook is provided which has a clamping surface which is assigned a counter-clamping surface of a clamping head which is held on a tongue which is pivotally mounted on a tongue at a distance from the clamping head Lever is articulated and loaded with a spring that presses the clamping head into the clamping position.
- an additional spring acts on the clamping tongue at a distance from the clamping head, which spring loads the clamping tongue transversely to the longitudinal direction of the gripper and ensures that when the tongue is retracted the counter clamping surface of the clamping head is moved away from the clamping surface of the clamping hook.
- the invention has for its object to simplify a slave gripper of the type mentioned and at the same time to ensure that a thread is released after a relatively short distance of the tongue.
- This object is achieved in that the clamping head is positively guided between two guides of the clamping hook at an angle to the longitudinal direction of the gripper and at an angle to the direction of the clamping surface.
- At least one of the guides is profiled in the transverse direction, in which the clamping head is guided with a corresponding profile. A transverse guidance of the clamping head is thus obtained at the same time without the need for separate guides or guide surfaces.
- the guides are provided in a one-part or multi-part insert which is fitted in a recess in the clamping hook.
- a suitable material can thus be selected for the guides without the entire clamping hook having to be made of this material.
- FIG. 1 shows a perspective view of a gripper according to the invention
- FIG. 3 shows a detail of FIG. 2 on a larger scale
- FIG. 5 shows a detail of FIG. 4 on a larger scale
- FIG. 6 is a partial view of the slave gripper of FIG. 1 in the direction of arrow F6,
- FIG. 7 is a view similar to FIG. 6 on another embodiment of a slave gripper
- FIG. 8 shows a detail similar to FIG. 3 of a further embodiment of a slave gripper
- FIG. 9 shows a detail similar to FIG. 5 of the embodiment according to FIG. 8,
- FIG. 10 shows a longitudinal section similar to FIG. 2 through a further embodiment of a slave gripper
- FIG. 11 shows a longitudinal section through the slave gripper of FIG. 10 with the thread clamp open.
- the slave gripper shown in the drawings has a gripper housing 10 made of metal, which is attached to the front end of a gripper belt in a manner not shown becomes.
- a clamping hook 11 is attached, which has a clamping surface 12.
- a mating clamping surface 13 of a clamping head 14 is assigned to this clamping surface 12.
- the clamping head 14 is located at the front end of a tongue 15, the rear end of which is articulated to an actuating lever 16 which is pivotally mounted in the gripper housing 10 about an axis 17.
- the actuating lever 16 is loaded with a compression spring which is aligned in the longitudinal direction of the gripper and which, via the lever, loads the tongue 15, which presses the clamping head 14 with its counter-clamping surface 13 against the clamping surface 12 of the clamping hook 11. If the lever 16 is pressed inwards, as shown in FIGS. 4 and 5, the clamp is opened.
- the clamping head 14 has two essentially parallel guide surfaces 19, 20, which are directed obliquely to the longitudinal direction of the gripper and obliquely to the clamping surface 12 of the clamping hook 11.
- the clamping head 14 is guided between two guides 21, 22, which are provided in a recess in the clamping hook 11.
- the guide 21 has a groove-like profile 23, in which the correspondingly profiled guide surface 19 of the clamping head is guided in the transverse direction.
- any movement of the tongue 15 in the longitudinal direction of the gripper is implemented in this oblique direction without a spring being required for this.
- the tongue 15 is articulated on the actuating lever 16 such that the articulation point moves essentially tangentially to the pivot axis when the actuating lever 16 is actuated.
- the slight transverse movement of the articulation point that occurs can be compensated for in the articulation point. This transverse movement is easily compensated for by a slight elastic deformation of the tongue 15, since the distance between see the clamping head 14 and the pivot point on the operating lever 16 is relatively large.
- the guides 21 and 22 are separately manufactured elements which are inserted into a recess 24 of the clamping hook 11 and fastened there, for example, in a manner not shown, for example by gluing.
- the guides 21, 22 are incorporated into a one-piece insert 25, which is inserted into the clamping hook 11 and fastened there, for example glued, in a manner not shown.
- the clamping hook 11 has a clamping surface 12 which extends in the longitudinal direction of the gripper and which is assigned a counter-clamping surface 13 of a clamping head 14 which also extends in the longitudinal direction of the gripper.
- a weft thread is released when the thread clamp is opened parallel to the longitudinal direction of the hook. For this reason, the end of the weft remains parallel to the edge of the goods before it is struck.
- the guide surfaces 19, 20 of the clamping head 14 and the guides 26, 27 of the clamping hook 11 are profiled such that they lie on circular paths to an axis parallel to the axis 17 of the actuating lever. With the help of such designs of the guides and guide surfaces, it is possible to limit the elastic deformation of the tongue 15. At least one of the guides 26 or 27 can also be profiled in the transverse direction, as shown in FIGS. 6 and 7.
- the guides 26, 27 are part of a one-part or two-part insert, which is attached in a recess of the clamping hook 11.
- the exemplary embodiments shown serve only to explain the invention. Modifications are easily possible lent, in particular with regard to the design of the guides for the clamping head 14. For example, it is also possible to guide the clamping head 14 with a cylindrical neck or with one or more cylindrical bolts in correspondingly hollow cylindrical guides.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19948960A DE19948960A1 (de) | 1999-10-11 | 1999-10-11 | Nehmergreifer für eine Greiferwebmaschine |
DE19948960 | 1999-10-11 | ||
PCT/EP2000/009787 WO2001027369A1 (de) | 1999-10-11 | 2000-10-06 | Nehmergreifer für eine greiferwebmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1220960A1 true EP1220960A1 (de) | 2002-07-10 |
EP1220960B1 EP1220960B1 (de) | 2004-12-15 |
Family
ID=7925246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00972691A Expired - Lifetime EP1220960B1 (de) | 1999-10-11 | 2000-10-06 | Nehmergreifer für eine greiferwebmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1220960B1 (de) |
AT (1) | ATE284988T1 (de) |
DE (2) | DE19948960A1 (de) |
WO (1) | WO2001027369A1 (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 (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005014107A1 (de) * | 2005-03-22 | 2006-09-28 | Picanol N.V. | Nehmergreifer mit einem hakenförmigen Einsatz und Verfahren zum Herstellen des hakenförmigen Einsatzes |
WO2022258443A1 (en) * | 2021-06-10 | 2022-12-15 | Picanol | Gripper for a rapier weaving machine |
EP4101960A1 (de) * | 2021-06-10 | 2022-12-14 | Picanol | Greifer für eine greiferwebmaschine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1132844B (it) * | 1980-09-15 | 1986-07-09 | Nuovo Pignone Spa | Perfezionamenti nelle pinze passatrama per telai tessili |
CH670262A5 (de) * | 1986-02-13 | 1989-05-31 | Sulzer Ag | |
EP0812939B1 (de) * | 1996-06-14 | 2001-04-04 | Sulzer Textil AG | Holergreifer für eine Greiferwebmaschine |
-
1999
- 1999-10-11 DE DE19948960A patent/DE19948960A1/de not_active Withdrawn
-
2000
- 2000-10-06 EP EP00972691A patent/EP1220960B1/de not_active Expired - Lifetime
- 2000-10-06 AT AT00972691T patent/ATE284988T1/de not_active IP Right Cessation
- 2000-10-06 WO PCT/EP2000/009787 patent/WO2001027369A1/de active IP Right Grant
- 2000-10-06 DE DE50008975T patent/DE50008975D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0127369A1 * |
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 |
---|---|
WO2001027369A1 (de) | 2001-04-19 |
ATE284988T1 (de) | 2005-01-15 |
DE50008975D1 (de) | 2005-01-20 |
EP1220960B1 (de) | 2004-12-15 |
DE19948960A1 (de) | 2001-04-12 |
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