The invention relates to a holding arrangement for a spinning or twisting spindle at a spindle rail which is provided with bores for the guiding-through of one spindle bearing housing respectively which, by means of a holder, can be fastened to the spindle rail, the position of the holder being adjustable.
In the case of a known construction of the initially mentioned type (DE-A 36 12 577), the holder consists of a disk-shaped ring in which the spindle bearing housing is held by means of a press fit. The ring is inserted into the bore of the spindle rail by means of a centering projection. A deformable ring-shaped intermediate piece is arranged between the ring and the spindle rail. By means of a more or less strong tightening of the screws which penetrate the spindle rail and pull the holder to the spindle rail, the slope of the spindle bearing housing may be changed while the intermediate piece is deformed so that a setting and an adjustment of the spindle becomes possible with respect to a spinning ring.
It is also known (EP-A 0 209 799) to form the holder from a fastening part which can be fastened to the spindle rail and of a holding part which are arranged at a distance from one another in axial direction and are connected with one another by means of spiral spring elements. In this construction, the whole spring, in radial direction, is to be held elastically flexibly at the spindle rail. An adjusting of the spindle with respect to a ring rail or the like is not provided in this construction.
An object of the invention is to provide a holding arrangement of the initially mentioned type which, on the one hand, permits a secure fastening at the spindle rail and, on the other hand, permits an adjusting of the spinning or twisting spindle with respect to the ring rail or the like that is independent of the fastening.
This object is achieved according to preferred embodiments of the invention in that the holding arrangement has a fastening part that can be mounted at the spindle rail and a holding part which accommodates the spindle bearing housing, and in that devices are provided for the adjusting of the relative position of the holding part with the spindle bearing housing with respect to the fastening part.
By means of separating the holding arrangement into a fastening part and into a holding part, defined conditions are created for the fastening as well as for the adjusting.
In a further development of preferred embodiments of the invention, it is provided that the fastening part and the holding part are connected with one another by means of an intermediate piece which can be deformed by means of the devices for the adjusting. This deformable intermediate piece may be constructed in such a manner that it permits a tilting motion of the spindle or also a radial motion for the adjusting.
In a preferred embodiment of the invention, it is provided that the fastening part and the holding part are arranged at an axial distance and are connected with one another by means of the deformable intermediate piece which extends in axial direction. In the case of this embodiment, a tilting motion of the spindle is carried out for the adjustment of the spindle, the tilting shaft being disposed in the area of the intermediate piece. In this case, it is expediently provided that the deformable intermediate piece extends essentially along the thickness of the spindle rail and, in radial direction, maintains a distance from the interior wall of the bore of the spindle rail, on the one side, and a distance to the spindle bearing housing, on the other side. It is also expedient for the fastening part to be arranged essentially below and for the holding part to be arranged essentially above the spindle rail. As a result, a compact construction is achieved in which the tilting shaft, around which the adjustment takes place, is located approximately in the area of the center of the thickness of the spindle rail. In an expedient construction, it is provided further that the fastening part, the holding part and the intermediate piece are a one-piece component. The deformability of the intermediate piece which preferably is to remain in the elastic range, in this case, is achieved by a corresponding choice of the intermediate piece.
In a further development of preferred embodiments of the invention, it is provided that at least one essentially radial adjusting screw which can be applied to the spindle bearing housing is arranged in the fastening part as the device for the adjusting. This adjusting screw or these adjusting screws are applied to the spindle bearing housing which correspondingly is to be dimensioned such that, in the area that is of interest here, it is more rigid than the intermediate piece. In a further development of the invention, it is provided in this case that the adjusting screw or adjusting screws reach into a recess of the spindle bearing housing. The adjusting screw or adjusting screws will then serve also for the absorption of axial forces so that the deformable intermediate piece is largely relieved from the absorption of axial forces.
In a further development of preferred embodiments of the invention, it is provided that the holding part is manufactured with a deviating slope with respect to a theoretical spindle shaft with respect to which the fastening part is manufactured to be coaxially aligned. This intentionally carried out deviation can be designed such that it corresponds to the sum of all possible eccentricities caused by the tolerances. During the mounting, the adjusting devices must then definitely be operated in order to produce a centricity of the spindle. This alignment of the spindle is checked by means of a testing device with respect to the pertaining spinning ring. In the case of alignments in practice, the deviation provided during manufacturing amounts to approximately 0.3 mm for 100 mm of spindle length.
Other objects, advantages and novel features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings.