JPH05247740A - Core centering of yarn twisting spindle - Google Patents

Abstract

PURPOSE: To simplify fitting and core centering of a spindle in a ring fin spinning machine or a ring yarn twisting machine by fixing a control ring at a specific position before fitting a spindle to a spindle rail. CONSTITUTION: This spindle has a spindle housing 2 revolvable around a control ring 15 and the control ring has a calotte-like guiding plane 19 at a front face opposing to a spindle rail 12. A guiding plane 20 formed correspondingly to the spindle housing 2 is attached to the guiding plane 19. A spindle rotating part 3 inserted into the spindle housing 2 is located at the center of movement loci of fine spinning rings 9, 9', or the like.

Description

Detailed Description of the Invention

The present invention relates to a method for centering (Ausrichten) spinning or twisting spindles, which comprises an adjusting ring which, after mounting the spindle on the spindle rail, surrounds the spindle separately and which can be fitted on the spindle rail with a fitting surface. The pivotable spindle housing, on the other hand, relates to a spindle alignment method in which the axis of the spindle rotor can be moved to a position such that it is in the center of the movement trajectory of the spinning or twisting spindle.

The invention further relates to a spindle housing and an adjusting ring which surrounds it in a ring-like manner, the adjusting ring having an abutment surface for abutting the opposite surface of the spindle rail and a carrotter-like guide surface. However, this guide surface is movably mounted on the guide surface of the spindle housing.

In the ring spinning machine and the ring twisting machine, there is a demand that the spindle rotating portion should be located as accurately as possible in the center of the movement trajectory of the spinning ring. Due to manufacturing inaccuracies, it often happens that the spindle rotor does not rise exactly vertically from the spindle rail. Once the allowed tilt angle has been exceeded, the spindle must be properly centered so that the spindle rotator is as vertical as possible and therefore in the center of the movement trajectory of the spinning or twisting ring.

It is known to provide an adjusting ring in a spindle housing, which surrounds it in a ring-shaped manner and which has an abutment surface which abuts the spindle rail after attachment (DD-PS236351). The spindle housing can be swiveled with respect to this adjusting ring and can be screwed into the spindle rail in the desired position. The spindle housing is provided with a flange, which has a spherical guide surface on its front side facing the spindle rail. The adjusting ring has on its side facing away from the spindle rail a conforming, carrotted guide surface against which the guide surface of the spindle housing rests. During the pivoting movement of the spindle housing these guide surfaces are moved relative to each other.

In the known construction method, the angle of inclination existing between the spindle housing and the adjusting ring is not defined before mounting on the spindle rail. The spindle rotator therefore makes an arbitrary angle of inclination with respect to the upper surface of the spindle rail and the direction of movement of the spinning or twisting ring, so that it is necessary to align all spindles after mounting them on the spindle rail. This causes a considerable amount of work in assembling the spinning or twisting machine.

An object of the present invention is to reduce the time and effort required for mounting and aligning a spindle in a ring spinning machine or a ring twisting machine.

This object is achieved in that the adjusting ring is fixed in a coaxial position relative to the spindle housing and is separably fixed before mounting the spindle on the spindle rail. In spinning or twisting spindles this purpose is achieved in that the means for fixing and releasably fixing the adjusting ring to the spindle housing are arranged coaxially with the spindle housing.

This measure makes it possible to mount all spindle housings on the spindle rail in a constant vertical position. In this case, the invention is based on the recognition that the spindle rotor is essentially coaxial with the longitudinal axis of the spindle housing, since in many spindles the components are manufactured very accurately. If the spindle housing is mounted perpendicular to the longitudinal surface of the spindle rail, the spindle rotating part will also be perpendicular to the spindle rail in spindles manufactured with high manufacturing accuracy. Therefore, the advantage is that these spindles do not have to be aligned.

In a spindle which can be swiveled with respect to the adjusting ring, the vertical position of the spindle with respect to the spindle rail is achieved by the adjusting ring occupying a coaxial position with respect to the spindle housing. In other words, the adjusting ring is attached to the facing surface of the spindle rail after the attachment, for example, by the attaching surface which is the upper surface or the lower surface thereof. Since the contact surfaces of these adjusting rings are manufactured with extremely high manufacturing precision, the longitudinal axis of the adjusting rings is perpendicular to the spindle rail in all spinning positions. Therefore, the spindle housings occupy a position perpendicular to the spindle rail as well, if they are arranged coaxially to the adjusting ring.

According to the invention, the spindle is manufactured and assembled in such a way that the adjusting ring, which can be swiveled with respect to the spindle housing, occupies a basic position which is coaxial with the spindle housing. This coaxial basic position is thus established so that the adjusting ring and the spindle housing are fixed in this basic position before mounting on the spindle rail. This fixing is made separable so that the spindle housing can still be adjusted after it has been mounted on the spindle rail.

The spindle housing, which is fixed to the adjusting ring which engages in the manner described above, is mounted on the spindle rail, in which case it occupies a vertical position with respect to the spindle rail. A spindle whose rotating body projects essentially coaxially from the spindle housing and is therefore perpendicular to the spindle rail does not have to be aligned after mounting on the spindle rail. They are fixed in a known manner by tightening fixing nuts provided on the spindle housing. Spindles whose spindle rotator is not arranged coaxially with the spindle housing due to manufacturing errors must be centered. This eliminates the fixation that exists between the spindle housing and the adjustment ring,
The spindle housing is pivoted along the guide surface until the spindle rotator occupies the desired vertical position. The spindle housing is then screwed onto the spindle rail in a known manner in this pivoted position.

In a preferred embodiment of the invention, a deformable intermediate piece is provided as a fixing means that can be fixed and separated,
It is located between the adjusting ring and the spindle housing and connects them together. The adjusting ring and the spindle housing then take a coaxial position relative to each other.
Since this coaxial position is determined only by the structure of the member, adjustment by a special tool is unnecessary. This intermediate piece is deformed when the spindle housing is to be pivoted with respect to the adjusting ring. Due to the constant force required for it, the spindle housing and the adjusting ring occupy a rigid basic position with respect to each other prior to mounting on the spindle rail and are therefore separably fixed in this basic position.

It is advantageous to use a soft iron ring as the intermediate piece, which ring is arranged between the adjusting ring and the spindle housing in the area adjacent to the guide surface. The soft iron ring holds the spindle housing and adjustment ring in a relatively rigid, basic position prior to attachment to the spindle rail. The soft iron ring is compressed as the spindle housing is pivoted relative to the adjustment ring.

In another advantageous configuration of the invention, a spring-elastic ring is provided as the intermediate piece. This spring resilient ring holds the spindle housing and the adjusting ring in a coaxial basic position. As the spindle housing pivots, the spring elastic ring is deformed. Since this spring-elastic ring has a tendency to push the spindle housing back into its original position, it should be screwed onto the spindle rail in a known manner immediately after pivoting.

Other features and advantages of the invention will be apparent from the several embodiments described according to the drawings.

FIG. 1 shows a spinning spindle 1, which in a known manner comprises a spindle housing 2 and a spindle rotating part 3 on which a spinning bobbin is mounted during the spinning operation. The spindle rotor 3 is non-rotatably connected to a shaft 4 in a coaxial extension, which shaft is inserted into the spindle housing 2 where it is supported by a collar bearing 5 and a thin bearing 6. The spindle rotating unit 3 is rotated by a tangential belt (not shown) that contacts the flywheel 7.

The spindle rotator 3 is surrounded by a spinning ring 9, which vertically moves the spindle rotator 3 vertically during the spinning operation to distribute the windings on the bobbin in the longitudinal direction. At its lowest position 9'shown in dotted lines in FIG. 1, the spinning ring is at approximately the same height as the underwinding area 8 provided on the spindle rotary part 3. During the spinning process,
The traveler moves along the circular trajectory of the spinning ring 9. The axis of movement of the spinning ring 9 and the traveler, not shown, is the axis 10. The spinning ring 9 moves exactly perpendicular to the spindle rail 12 on which the spindle 1 is mounted. That is, the shaft 10 is perpendicular to the spindle rail 12.

In FIG. 1, the spindle housing 2 is perpendicular to the spindle rail 12. The axis 10 therefore also represents the longitudinal axis of the spindle housing 2. As shown exaggeratedly in FIG. 1, the shaft 4 is tilted in the spindle housing 2, ie the axis 11 of the shaft 4 is tilted with respect to the longitudinal axis of the spindle housing 2. This tilt condition is usually due to manufacturing inaccuracies. Like the shaft 4, the spindle rotating unit 3 is also inclined with respect to the shaft 10.
In other words, the spindle rotating portion is also tilted within the movement trajectory of the spinning ring 9. This tilt of the spindle rotor 3 with respect to the trajectory of the spinning ring 9 can lead to serious obstacles in the spinning operation.

The spindle housing 2 is inserted into the opening 18 of the spindle rail 12 and
The upper and lower surfaces 24 and 16 are fixed by a pad member. The flange 22 that is connected to the spindle housing 2 functions as one of the contact members, but this is not of course direct, and the spindle housing 2
It is attached to the lower surface 16 of the spindle rail 12 via an adjusting ring 15 surrounding the. On the other hand, as an axial contact member,
A ring plate 1 which is attached to the upper surface 24 of the spindle rail 12.
4 is installed. The ring plate 14 is pressed against the upper surface 24 of the spindle rail 12 by a nut 13 which can be screwed onto an external thread cut on the external surface of the spindle housing 2. Also in the opening 18 of the spindle rail 12,
The adjusting ring 15 also has an annular gap with respect to the spindle housing 2, so that the spindle housing 2 can be swung in this area. Nut 13
By tightening, the spindle housing 2 is held in the adjusted position.

FIG. 2 shows the fixing portion of the spindle 1 on the spindle rail 12 in detail. The adjusting ring 15, which is arranged between the lower surface 16 of the spindle rail 12 and the flange 22 of the spindle housing 2, has on its front surface an abutment surface 17 that abuts the lower surface 16 of the spindle rail 12. Since the contact surface 17 of the adjusting ring 15 is manufactured with a high manufacturing precision, the adjusting ring 15 is in the correct position with respect to the spindle rail 12 in all spinning positions, that is, the longitudinal axis of the adjusting ring 15 is correct with respect to the spindle rail 12. Occupies a position that is perpendicular to.
The adjusting ring 15 has, on its front side opposite the lower surface 16 of the spindle rail 12, a circumferentially extending carrotter-shaped guide surface 19, which runs along only part of the radial extension of the adjusting ring 15. It is extended. The carrotta-shaped guide surface 19 is connected to the front surface extending in a ring shape in the radial direction of the adjusting ring 15, which basically is the contact surface 17
It is parallel to.

The flange 22 has a ring-shaped portion on its front side facing the lower surface 16 of the spindle rail 12, which opposes the ring-shaped front side of the adjusting ring 15. In the flange 22, the spindle rail 12
In the direction of, which has a guide surface 20 which extends in the outer circumferential direction and which conforms to the contours of the carrotter-shaped guide surface 19 of the adjusting ring 15 and which rests on said guide surface. These curved guide surfaces 19 and 20 can be moved relative to each other if the nut 13 is not tightened,
At that time, the spindle housing 2 is rotated.

A soft iron ring 21 is fitted in an intermediate area formed on the outside of the guide surfaces 19, 20 between the adjusting ring 15 and the flange 22, which ring is fitted with the adjusting ring 15.
And the flange 22 are connected to each other. The soft iron ring 21 has a notch 26 that facilitates its deformation. In the undeformed state, the soft iron ring 21 has the same axial extension over its entire range, so that the flange 22 is coaxial with the adjusting ring 15. The shaft 10 thus simultaneously represents the shaft for the spindle housing 2 and the adjusting ring 15 in the embodiment according to FIGS. 1 and 2, and it is also the normal to the spindle rail 12, since the abutment surface 17 is the spindle rail 12. This ensures the correct vertical alignment of the adjusting ring 15 with respect to.

The soft iron ring 21 functions as a means for fixing and fixing the adjusting ring 15 and the spindle housing 2 in a coaxial position. Soft iron ring 21
If is deformed, the fixation is released.

Since the manufacturing error is low in many cases, the shaft in the spindle housing 2 occupies a coaxial position with respect to the spindle housing, unlike in FIG. The spindle housing 2 can then be screwed into the position as shown in FIG. 2, i.e. perpendicular to the spindle rail 12. Alignment of the spindle after mounting on the spindle rail is not required.

In the embodiment shown in FIG. 1, the shaft 4 is not coaxial with the spindle housing 2. Therefore, the spindle housing 2 is the spindle rail 1
After fitting into 2, but before screwing, the axis 11 of the spindle rotary part 3 must be swiveled in the direction of the arrow 23 until it coincides with the axis 10 of the trajectory of the spinning ring 9.
During this pivoting movement, the adjusting ring 15 and the guide surfaces 19 and 20 of the spindle housing 2 slide over one another. The soft iron ring 21 is deformed during turning. After alignment, the spindle housing 2 is screwed onto the spindle rail 12 by turning the nut 13 and the guide surface 19
And 20 are pressed firmly against each other, which holds the adjusted position of the spindle housing 2.

The embodiment of FIG. 3 is distinguished from the embodiment of FIG. 2 by the different specifications of the fixing and fixing means. An elastic ring 30 is used instead of the soft iron ring, which is arranged between the flange 27 of the spindle housing 2 and the adjusting ring 28. As in the previous embodiment, the pivoting movement of the spindle housing 2 is possible by sliding along the guide surfaces 19,20.
The elastic ring 30 includes the adjusting ring 28 and the spindle.
It serves to fix the housings 2 in a coaxial position relative to each other. The elastic ring 30 is located on the front side of the flange 27 facing the spindle rail 12, ie the elastic ring 30 projects beyond the flange 27. A ring-shaped projection 29 of the adjusting ring 28 is attached to the protruding portion of the elastic ring 30 on the side of the elastic ring 30 opposite to the flange 27. The spindle housing 2 and the adjusting ring 28 fixed coaxially thereto are mounted on the spindle rail 12 in this position, but the nut 13 is not yet tightened. Spindle rotating part 3
If the axis 11 of the spindle is inclined with respect to the axis 10 of the trajectory of the spinning ring 9, the spindle must be centered by the pivoting of the spindle housing 2. In order to pivot, the elastic force of the spring elastic ring 30 must be overcome. Since this elastic force is effective even after turning, the nut 13 must be tightened immediately after turning so that the spindle housing 2 remains in the turned position. By tightening the nut 13, the guide surfaces 19 and 2
The zeros are pressed tightly against each other, which holds the pivoted position of the spindle housing 2.

In the case of the embodiment according to FIG. 3 as well, it is assumed that the spindle rotary part 3 is arranged coaxially with the spindle housing 2 because the manufacture is very rigorous for most spindles. Therefore, readjustment with the spindle rail 12 mounted is only necessary for a relatively small number of spindles.

The present invention relates to a spindle having a structure different from that of the above-mentioned spindle, in particular the original spindle housing for receiving the bearing is surrounded by an outer spindle housing which is adjusted in the manner of the invention and fixed to the spindle rail. It can also be applied to the case of a spindle.

[Brief description of drawings]

FIG. 1 is a partially cut vertical sectional view of a spindle.

FIG. 2 is an enlarged partial view of the spindle of FIG.

3 is a partially enlarged view similar to FIG. 2 of another embodiment of the spindle.

[Explanation of symbols]

 1 Spinning Spindle 2 Spindle Housing 3 Spindle Rotating Part 4 Shaft 9,9 'Spinning Ring 10,11 Axis 12 Spindle Rail 13 Nut 15 Adjusting Ring 17 Contact Surface 19,20 Guide Surface 21 Soft Iron Ring 22 Flange

 ─────────────────────────────────────────────────── ———————————————————————————————————————— Inventor Gerd Stahlecker, Germany 7332 Eislingen, Auf, Dell, Ebene 30

Claims (5)

[Claims] 1. After the spinning or twisting spindle has been mounted on the spindle rail, the spindle housing is rotatable about an adjusting ring which surrounds the spindle housing separately and which can be mounted on the spindle rail with an abutment surface. In a centering method for a spinning or twisting spindle, where the part can be moved to a position in the center of the movement trajectory of the spinning or twisting ring, the adjusting ring is fixed in a coaxial position with respect to the spindle housing before mounting the spindle on the spindle rail, Also, a method for aligning a spinning or twisting spindle, characterized in that it is detachably fixed. 2. A spindle housing and an adjusting ring surrounding the spindle housing, the adjusting ring having an abutment surface for abutting an opposite surface of the spindle rail and a carrotter-like guide surface, and This guide surface is a spinning or twisting spindle movably mounted on the guide surface of the spindle housing, the fixing and fixing means (21, 30) of the adjusting ring (15, 28) being in the spindle housing (2). A spinning or twisting spindle characterized in that it is arranged coaxially with it. 3. The fixing and fixing means are adjusting rings (1
5, 28) and the spindle housing (2), which are arranged between the deformable intermediate pieces (2) to connect them to each other.
1, 30), the spinning or twisting spindle according to claim 2. 4. The intermediate piece is manufactured as a soft iron ring (21) between the adjusting ring (15) and the spindle housing (2) in the area adjacent to the guide surfaces (19, 20). Spinning or twisting spindle according to claim 3, characterized in that it is arranged. 5. The intermediate piece is made as a spring-elastic ring (30) between the adjusting ring (28) and the spindle housing (2) in the area adjacent to the guide surfaces (19, 20). Spinning or twisting spindle according to claim 3, characterized in that it is arranged in