Actuation device for the drive gear of a weft thread carrier of a shuttleless loom
First Claim
1. An actuation device for a drive element of a weft thread carrier of a shuttleless loom which is guided by a gripper tape, comprising:
- a crank drive;
a substantially slipless traction means-drive containing a toothed belt;
a drive element operatively connected with the crank drive by means of the toothed belt of said substantially slipless traction means-drive;
a linearly guided slide operatively connected for movement with the toothed belt;
said crank drive moving said linearly guided slide back-and-forth;
said traction-means drive further comprising;
a drive pulley operatively connected for rotation with the drive element;
a tensioning pulley arranged in spaced relationship from said drive pulley;
said toothed belt of said traction means-drive being wrapped in an endless configuration about said drive pulley and said tensioning pulley;
guide means provided for said slide;
at least one run of said toothed belt extending essentially parallel to said guide means for said slide;
said slide being fixedly connected with said one run of said toothed belt;
the length of said one run essentially corresponding to the greatest spacing of reversal points of the slide and which govern the maximum insertion depth of the weft thread carrier into a shed of the loom;
means for adjusting the spacing of the reversal points of the slide;
box means open towards the side of the slide;
said box means having side walls forming said guide means for said slide;
said box means being connected with a sley of the loom in the form of a sley sword; and
said traction means-drive being located within said open box means.
1 Assignment
0 Petitions
Accused Products
Abstract
An actuation device for a drive element, such as the drive gear of a gripper needle encompasses a box which can be attached to the sley of a shuttlesess loom. Accommodated in this box is a traction means-transmission or drive containing a toothed belt of a drive pulley or disc which is operationally connected with the drive gear and a tensioning pulley or disc. The run of the toothed belt extends essentially parallel to a slide guide for a slide which is fixedly connected with the aforementioned belt run. The slide or carriage is moved to-and-fro by means of a lengthwise adjustable intermediate rod through the action of a crank drive. The adjustable spacing between the reversal points of the slide constitutes a measure for the insertion depth of the weft thread carrier into the shed. This enables a simple and robust as well as adaptable conception by means of which there can be obtained an extremely precise and unchanging insertion depth of the weft thread carrier into the weaving shed.
8 Citations
9 Claims
-
1. An actuation device for a drive element of a weft thread carrier of a shuttleless loom which is guided by a gripper tape, comprising:
-
a crank drive; a substantially slipless traction means-drive containing a toothed belt; a drive element operatively connected with the crank drive by means of the toothed belt of said substantially slipless traction means-drive; a linearly guided slide operatively connected for movement with the toothed belt; said crank drive moving said linearly guided slide back-and-forth; said traction-means drive further comprising; a drive pulley operatively connected for rotation with the drive element; a tensioning pulley arranged in spaced relationship from said drive pulley; said toothed belt of said traction means-drive being wrapped in an endless configuration about said drive pulley and said tensioning pulley; guide means provided for said slide; at least one run of said toothed belt extending essentially parallel to said guide means for said slide; said slide being fixedly connected with said one run of said toothed belt; the length of said one run essentially corresponding to the greatest spacing of reversal points of the slide and which govern the maximum insertion depth of the weft thread carrier into a shed of the loom; means for adjusting the spacing of the reversal points of the slide; box means open towards the side of the slide; said box means having side walls forming said guide means for said slide; said box means being connected with a sley of the loom in the form of a sley sword; and said traction means-drive being located within said open box means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification