Textiles: weaving – Miscellaneous – Loom cleaning
Patent
1992-10-23
1995-02-07
Falik, Andrew M.
Textiles: weaving
Miscellaneous
Loom cleaning
139438, 139448, D03J 100, D03D 4720
Patent
active
053868536
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention is directed to a gripper loom which has at least one gripper associated with the blower nozzle of a blowing device, outside of the weaving area, characterized in that a suction nozzle of a suction device is associated with the blowing nozzle on the opposite side of the gripper. The blowing nozzle is directed against the opening of the suction nozzle and the gripper is constructed in such a way that it enables air to pass from the blowing nozzle to the suction nozzle.
BACKGROUND OF THE INVENTION
A gripper loom of the above-indicated type is known e.g. from DE-PS 26 44 343. An air jet is directed against the gripper when the gripper is opened. However there is a risk that dust, lint and yarn remainders will be blown into the gripper or other parts of the gripper loom by the air jet directed toward the gripper and settle there in a troublesome manner and/or load the environment.
SUMMARY OF THE INVENTION
The object of the invention is to construct a gripper loom in such a way that the aforementioned disadvantages are avoided.
The object is met according to the invention by providing a gripper loom which has at least one gripper associated with the blower nozzle of a blowing device, outside of the weaving area, characterized in that a suction nozzle of a suction device is associated with the blowing nozzle on the opposite side of the gripper. The blowing nozzle is directed against the opening of the suction nozzle and the gripper is constructed in such a way that it enables air to pass from the blowing nozzle to the suction nozzle. An optimal cleaning of the gripper is provided, while dirt, lint and yarn remainders are simultaneously prevented from depositing in other parts of the gripper loom, in that a blowing nozzle acts on the gripper on one side and a suction nozzle acts on the gripper on the other side and the gripper is further constructed in such a way that it is possible for air to pass across from the blowing nozzle to the suction nozzle. An optimal operating reliability of the gripper loom and preservation of the environment are accordingly achieved.
Advantageous constructions of the gripper loom are described herein.
It is possible to arrange the blowing nozzle on the draw-off side of the gripper, i.e. on the side facing the draw-off device. However, a construction wherein the blowing nozzle is arranged on the shed forming side of the gripper, is more advantageous, whereby any risk of lint, dust and the like reaching the shed region and being incorporated into the woven fabric is prevented.
A construction of the gripper loom, wherein the axis of the blowing nozzle and the axis of the suction nozzle lie at least approximately on a common axis which preferably extends parallel to the fabric web, is particularly advantageous, since the blowing nozzle then blows impurities directly into the suction nozzle by means of the air flow. This is reinforced when the common axis of the blowing nozzle and suction nozzle lies parallel to the fabric web. It has been shown that optimal results can be achieved with the arrangement of the common axis, wherein the common axis forms an angle of 30.degree. to 150.degree. with the running direction of the gripper. It is possible per se to construct the suction device in such a way that the suction process is turned off when the filling thread is inserted into the weaving location. However, it has been shown that better results are obtained when the suction device is in use continuously and is in use without intermission. On the other hand, it is advantageous that the blowing nozzle not be used continuously, but only when the gripper is also actually located in the region of the blowing nozzle. A construction, wherein a magnet valve is arranged in the feed line to the blowing nozzle and having its distance from the blowing nozzle preferably less than 200 mm, is suitable for controlling the compressed air. The closer the magnet valve is arranged to the blowing nozzle, the lower the losses of compressed air and the better the clean
REFERENCES:
patent: 3542595 (1970-11-01), McCullough et al.
patent: 4230158 (1980-10-01), Hintsch
patent: 4320785 (1982-03-01), Zwiener
patent: 4640315 (1987-02-01), Gascsay
Falik Andrew M.
Textilma AG
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