摘要:
The invention concerns an apparatus for controlling the rotational speed of the spindles of a spinning preparatory machine equipped with spindles and flyers.The proposed control arrangement comprises an infinitely variable variator, which is adapted or adjusted by using a control shaft which is rotatably indexed or stepped. The control or adjustment shaft is moved by a control motor which received its control or switching impulses from a motor control device comprising a programmable indicator or set value transmitter for the desired or set value and a correction element.According to a particularly advantageous design the correction element is of the form of a crossbar distributor arrangement.The apparatus is comfortable and easy to use by the operating personnel and permits, among other advantages, extremely accurate adaptation or adjustment of the spindle rotational speed. The adaption operations can be effected while the machine is running.
摘要:
The invention concerns a spinning preparatory machine with suspended pivotable flyers arranged in at least one row. The flyers are supported in a frame composed of a longitudinal beam and two arms and arranged at right angles thereto, which frame is pivotable about a pivoting axis between an operating position and a doffing position. A pivoting and loading system is connected with the frame in such a manner that the frame is locked in its operating position.The spinning preparatory machine according to the invention shows, among others, the advantage of an accurate positioning of the pivotable flyers in a locked operating position, high operational reliability and affords safety against accidents from occurring.
摘要:
The present invention concerns a method of automatically doffing the full bobbin packages from, and donning the empty bobbin tubes onto, the spindles of a preparatory spinning machine equipped with flyers. The flyers are of the so-called suspended type, i.e. they are rotatably supported in a flyer head.For the conjoint, vertical doffing of the full bobbin packages, and for the conjoint, vertical donning of the empty bobbin tubes the flyers are pivoted to the side in such manner, that they cannot obstruct the doffing of the full bobbins any more.The inventive preparatory spinning machine comprises a common support beam in which the flyers are rotatably supported, in which arrangement the beam can effect a translatory movement in such manner that each flyer can be brought into an inclined position.
摘要:
Tension is reduced in the unwound length of roving remaining between the drafting mechanism and the package after the frame has been brought to a halt. This can be done by additional feed from the drafting mechanism after stopping of the other elements of the frame. A tension adjusting means is coupled into the drive to the rollers of the drafting mechanism to advance the mechanism the desired amount. The degree of feed may be different depending upon whether the stoppage is due to a break at one of a group of flyers, or to a doffing operation.
摘要:
The present invention is concerned with threading-in textile materials, such as a yarn, a roving or similar textile or filamentary material, into an enclosed duct or the like. The threading-in of the textile material is accomplished by manually operating a manual apparatus which functions as a pump. In this way there can be avoided the use of expensive and complicated devices presently provided for threading-in textile materials as is known. The invention is astonishingly simple, the manual apparatus is easy and convenient to use, readily transportable and its cost is exceedingly modest.
摘要:
A spinning frame having a frame mount, a plurality of spindles and, suction elements for each spindle, a ventilating fan arranged in the frame mount and connected to the suction elements, and a filter on the pressure side of the ventilating fan, the filter forming at least part of the rear wall of the frame mount, and including pneumatic cleaning means for the filter, said cleaning means including a suction arm which is movable along the filter and is connected to a suction device.
摘要:
The spindles of a flyer spinning frame are each mounted in respective chambers which are defined by telescopically slidable rings. The lowest ring on each sleeve is sealingly fixed on a spindle rail, while the uppermost ring on each sleeve is attached to a common, vertically movable support. The chambers, which are open at the top, are connected to the suction side of a ventilating fan by ducts, which extend through the spindle rail, and by flexible lines.
摘要:
For automatic feeding of slivers through drawing rollers there is provided a sliver-processing frame having drawing rollers, tubes for conveying slivers to be drawn and a plurality of suction elements connected to a common source of low pressure wherein the drawing rollers are enclosed in a casing of which the interior is connected to the source of low pressure the casing having inlet orifices for admitting cleaning air to the surfaces of the drawing rollers, one end of each tube leading into the casing.
摘要:
A device is disclosed for discharging elongate, coarse bulk products—such as bottle preforms—from a product hopper. The device includes a product hopper with a discharge opening and a rotating disc that is configured to receive bulk products passing through the discharge opening.
摘要:
The present invention is a method and an eddy current system for non-contact determination of the resistance between the current lead stripe and the coating during continuous fabrication of chemical power sources such as batteries, supercapacitors, photovoltaic modules and the like. Both the method and the non-destructive test system for practicing the method are described. The method includes placing of an integrated measuring transducer containing two strap-type eddy current probes above the surface of the coating applied to the metallic current lead stripe in the region of the shaft guiding the stripe movement, so that all the points of the operating surface of the transducer being at an equal distance from the stripe surface coating so that the two probes would take measurements on the same area of the coating.