SPINNING POSITION DEVICE WITH ENCAPSULATION

Abstract

In a spinning position device (10) for a ring spinning machine (1) comprising a spindle (20) for a package body (13), which spindle (20) is rotatably mounted on a spindle rail (2), and an encapsulation (50) extending in the longitudinal direction of the spindle (20) and enclosing the package body (13), the encapsulation (50) being connected to the spindle rail (2), there is provision for the encapsulation (50) to be longitudinally divided and to have a rear encapsulation wall (51) and a front encapsulation wall (52), the front encapsulation wall (51) being movable into an open position, so that in the open position the package body (13) of the spinning position device (10) is accessible for operation.

Claims

1. A spinning position device (10) for a ring spinning machine (1), comprising: a spindle (20) for a package body (13), rotatably mounted on a spindle rail (2); and an encapsulation (50), extending in a longitudinal direction of the spindle (20) and enclosing the package body (13), wherein the encapsulation (50); is connected to the spindle rail (2), is longitudinally divided; and has a rear encapsulation wall (51) and a front encapsulation wall (52), wherein the front encapsulation wall (51) is configured to be movable into an open position, so that in the open position the package body (13) is accessible for operation.

2. The spinning position device according to claim 1, wherein the front encapsulation wall: is pivotably connected at a lower area; and is configured to be pivoted into a horizontal position.

3. The spinning position device according to claim 2, wherein: the rear encapsulation wall (51) is fixedly connected to the spindle rail (2), and the front encapsulation wall (52) is pivotally connected to the rear encapsulation wall (51).

4. The spinning position device according to claim 1, wherein the rear encapsulation wall (51) and the front encapsulation wall (52) are each formed as a partial shell, and are preferably connected to one another with a hinge (54) in an area of the spindle rail (2).

5. The spinning position device according to claim 1, wherein the spinning position device (10) further comprises a spindle brake (60) configured to be actuated by opening the encapsulation (50) in order to brake the spindle (20) or package body (13).

6. The spinning position device according to claim 4, wherein the front encapsulation wall (52) comprises a brake actuation device (55) configured to actuate the spindle brake (60) by moving the front encapsulation wall (52) to the open position.

7. The spinning position device according to claim 4, wherein the spindle brake (60) is configured such that a brake force of the spindle brake (60) can be controlled in a variable manner.

8. The spinning position device according to claim 4, wherein the spindle brake (60) is configured such that a brake effect of the spindle brake (60) increases with increasing degree of opening of the encapsulation (50), up to a maximum brake effect.

9. The spinning position device according to claim 4, wherein the spindle brake (60) is configured in the form of a calliper.

10. The spinning position device according to claim 1, further comprising an individual spindle drive unit which is configured to be controllable by opening and/or closing the encapsulation (50).

11. The spinning position device according to claim 1, wherein the spinning position device (10) comprises a spindle decoupling device (70) configured to decouple a drive element (6) of a ring spinning machine (1) from the spindle (20) by opening the encapsulation (50).

12. The spinning position device according to claim 11, wherein the drive element (6) comprises a drive belt configured to abut against a wharve (21) of the spindle (20) for operating the spindle (20).

13. The spinning position device according to claim 12, wherein the spindle decoupling device (70) comprises a decoupling roller (71) configured to be movably mounted in a direction of the drive belt (6), so that the decoupling roller (71) pushes the drive belt (6) away from the wharve (21) when the spindle decoupling device (70) is actuated.

14. The spinning position device according to claim 11, wherein the spindle brake (60) and the spindle decoupling device (70) are configured such that, when the encapsulation (50) is opened; the spindle brake is configured to be actuated to a maximum brake effect; and the drive element (6) of the ring spinning machine (1) is then configured to be decoupled from the spindle (20).

15. The spinning position device according to claim 11, wherein the spindle brake (60) and the spindle decoupling device (70) are configured such that, when the encapsulation (50) is closed, the drive element (6) of the ring spinning machine (1) is configured to be coupled to the spindle (20) before the spindle brake is subsequently released.

16. The spinning position device according to claim 11, wherein the front encapsulation wall (52) comprises an actuation arm (58) configured to actuate the spindle decoupling device (70).

17. The spinning position device according to claim 13, 16, wherein the decoupling roller (71) is mounted on a horizontally guided slide (72), wherein the slide (72) is configured to be operable by means of a knee lever (73).

18. A ring spinning machine (1), comprising: a plurality of spinning position devices (10), wherein each spinning position device (10) of the plurality of spinning position devices (10) comprises: a spindle (20) for a package body (13), rotatably mounted on a spindle rail (2); and an encapsulation (50), extending in a longitudinal direction of the spindle (20) and enclosing the package body (13), wherein the encapsulation (50): is connected to the spindle rail (2), is longitudinally divided; and has a rear encapsulation wall (51) and a front encapsulation wall (52), wherein the front encapsulation wall (51) is configured to be movable into an open position, so that, in the open position, the package body (13) is accessible for operation.

19. The ring spinning machine according to claim 18, wherein, for each spinning position device (10) of the plurality of spinning position devices (10), the front encapsulation wall: is pivotably connected at a lower area; and is configured to be pivoted into a horizontal position.

20. The ring spinning machine according to claim 19, wherein, for each spinning position device (10) of the plurality of spinning position devices (10): the rear encapsulation wall (51) is fixedly connected to the spindle rail (2), and the front encapsulation wall (52) is pivotally connected to the rear encapsulation wall (51).

Description

BRIEF EXPLANATION OF THE FIGURES

[0052] The invention should be explained in more detail below by means of embodiment examples in connection with the drawing(s). In the drawings:

[0053] FIG. 1A shows a side view of a spinning position device with an encapsulation in a closed position;

[0054] FIG. 1B shows a side view of a spinning position device with an encapsulation in an open position;

[0055] FIG. 2 shows a front view of the front encapsulation wall with a brake actuation device;

[0056] FIG. 3 shows a spindle brake;

[0057] FIG. 4A shows a spindle decoupling device in a coupled position; and

[0058] FIG. 4B shows a spindle decoupling device in a decoupled position.

[0059] In the figures, the same reference signs have been used for the same elements in each case, and explanations provided on the first occasion apply to all figures unless expressly stated otherwise.

WAYS TO CARRY OUT THE INVENTION

[0060] FIG. 1 shows a schematic representation of a spinning position 10 of a ring spinning machine 1 in a side view, under FIG. 1A with an encapsulation in a closed position and under FIG. 1B with an encapsulation in an open position.

[0061] At the spinning position 10, a yarn 12 is spun from a sliver 11 and wound onto a rotating package body 13 or a spinning cop. The package body 13 is mounted on a rotatably driveable spindle 20 for this purpose. During the spinning process, the sliver 11 passes through a drafting system 7, is then twisted into a yarn 12 and wound onto the package body 13. In order for the yarn 12 to be placed on the package body 13, the yarn 12 is guided through a ring traveller 31 rotating on a spinning ring 30. For guiding the yarn 12, a thread guide 40 is arranged further above the spindle 20 or the package body 13. The radial expansion of a thread balloon 14 forming during winding can be limited by a balloon limiter 41 or a balloon control ring. The balloon limiter 41 is then arranged between the spinning ring 30 and the thread guide 40. The ring spinning machine 1 typically possesses a plurality of spinning positions 10 arranged adjacent to one another.

[0062] The spinning rings 30 of the spinning positions 10 are arranged on a ring rail 3 extending in the longitudinal direction of the ring spinning machine 1. The balloon limiters 41 of the spinning positions 10 adjacent to one another are adjustably arranged on a crossmember 4 extending in the longitudinal direction of the ring spinning machine 1. Accordingly, the thread guides 40 of the spinning positions 10 arranged adjacent to one another are adjustably arranged on a crossmember 5 extending in the longitudinal direction of the ring spinning machine 1.

[0063] The spindles 20 of the spinning positions 10 are arranged on a spindle rail 2 extending in the longitudinal direction of the ring spinning machine 1. The spindle 20 of the spinning position 10 shown in the embodiment has a wharve 21 and a spindle bearing 22 at a lower end, by means of which the spindle 20 is rotatably mounted on the spindle rail 2. The spindle 20 is driven by a tangential belt 6, which can drive several spinning positions and is pressed against the wharve 21 of the spindle 20. Other drives are also possible.

[0064] FIG. 1A further shows an encapsulation 50 of the spinning position device 10 in a closed position.

[0065] The encapsulation 50 is formed from two encapsulation walls divided in the axial direction in the form of partial shells. A rear encapsulation wall 51 is connected to the spindle rail 2 and is fixedly attached or fixedly but removably attached relative to the spindle. A front, operator-side encapsulation wall 52 can be opened, for example, by pivoting about a hinge 54 with an axis lying in a plane perpendicular to the spindle or encapsulation axis. In the embodiment shown, the hinge 54 is located on two lateral legs 53 of the rear encapsulation wall 51 which protrude forward beyond the front encapsulation wall 52.

[0066] Further, a spindle brake 60 is shown schematically in the illustrated embodiment, which is arranged here directly below the package body 13 and above the wharve 21 of the spindle 20.

[0067] The front encapsulation wall 52 has a brake actuation device 55 to activate and control the spindle brake 60. This is realised here in the form of an actuation arm 56 with a ball 57 formed at its free end.

[0068] The front encapsulation wall 52 has a defined end position in the closed state. Means are provided for moving the thread displacement in the axial direction of the spindle 20 or package body 13, e.g. in the form of a spinning ring 30 and a ring traveller 31. This can be a slot with a ring holder, for example, in the rear encapsulation wall 51 or, for example, a magnetic guide of the spinning ring 30.

[0069] FIG. 1B shows the spinning position device of FIG. 1A with the encapsulation 50 in an open position. In this case, the front encapsulation wall 52 is pivoted forward and downward about the hinge 54 so that the front encapsulation wall 52 is in a substantially horizontal position. In this way, the package body 13 is freely accessible for operation. The front encapsulation wall 52 can be easily moved by hand (or by means of a robot) from the closed position to the open position.

[0070] The brake actuation device 55 is located at the lower end of the front encapsulation wall 52. When the front encapsulation wall 52 swings out, the brake actuation device 55—in the embodiment shown, the ball 57 of the brake actuation device 55—is inserted into the spindle brake, causing the spindle to be braked. Other embodiments of the brake actuation device are also possible.

[0071] FIG. 2 shows a front view of the front encapsulation wall 52 with the brake actuation device 55 configured as an actuation arm 56 and ball 57.

[0072] FIG. 3 shows a top view of a spindle brake 60. In the embodiment shown, the spindle brake 60 takes the form of a clamp or calliper and includes a first brake lever 61 and a second brake lever 62. Both brake levers 61, 62 are connected to one another by a hinge 63. At one end, the two brake levers 61, 62 each have a brake or clamping jaw which is placed around the spindle 20 of the spinning position device 10. When the spindle brake 60 is actuated, the clamping jaws are pressed against the spindle 20 and brake it.

[0073] The other end of the two brake levers 61, 62 in each case is configured so that the brake actuation device 55 can be inserted between the two brake levers 61, 62 and push these ends of the brake levers 61, 62 apart. In the process, the clamping jaws are pressed together and brake the spindle.

[0074] Thus, the spindle brake 60 can be actuated by a suitable brake actuation device 55, for example in the form of a wedge, a ball 57, a cylinder or other suitable shape, and its brake force can be infinitely variably controlled or regulated. The gap shown between the brake levers 61, 62 is wedge-shaped and straight, although the wedge shape can have a different angle or any wedge-shaped curve contour to allow the brake effect to be adjusted depending on the travel or pivot angle of the actuation.

[0075] One of the brake levers—in this case the second brake lever 62—is spring-loaded, for example by having two parts connected by a spring element 64. The spring element 64 can be a piece of spring steel.

[0076] As the front encapsulation wall 52 pivots out, the ball 57 of the brake actuation device 55 is inserted deeper and deeper into the gap between the two brake levers 61, 62. In order to gradually increase the brake effect as a function of the degree of opening of the encapsulation 50, the two brake levers 61, 62 each have stop surfaces 65 for the ball 57 of the brake actuation device 55 at the end facing away from the spindle, which surfaces 65 come closer to one another towards the hinge 63 so that a tapering gap is formed between the brake levers 61, 62 into which the ball 57 is inserted. As the depth of insertion increases, the ends of the spindle brake 60 facing away from the spindle are forced apart and the clamping jaws are pressed against the spindle 20. The brake effect increases in the process.

[0077] Above a certain depth of insertion, the brake levers can have stop surfaces 66 for a constant maintained brake effect, which are substantially parallel to one another when the brake actuation device 55 is inserted. In this way, the encapsulation 50 can be moved to the fully open position after it has already produced the maximum brake effect in a partially open position. The brake effect is kept constant in this case.

[0078] In other words, opening the encapsulation 50 accordingly guides the brake actuation device 55 to a certain depth of insertion at the stop surfaces 65 for increasing brake effect. It is then guided on the stop surfaces 66 until the encapsulation is fully opened for a constantly maintained brake effect. In this way, the spindle brake can be easily adjusted by swinging the front encapsulation wall 52 out or in. This is particularly advantageous if a spindle decoupling device 70 is also used, as described below under FIG. 4.

[0079] Further, a detent position is provided to allow the spindle brake 60 to be held closed without the brake actuation device 55 having to be held. This can be formed centrally in the gap or at its end. A variety of embodiments are also conceivable for this.

[0080] The brake is designed here as a “calliper” that closes when the two actuating levers are pushed apart and does not touch the spindle during its normal operation. For this purpose, a spring is provided to move and hold the brake calliper in this position, although this can also be achieved by a number of other embodiments of the calliper. For example, the same function can be performed by an elastomer or by having the calliper configured as a plastic part that is elastic at least in parts.

[0081] Alternatively, the spindle brake can be designed to close when the brake levers are pressed together. The brake levers must then be compressed by a suitable counterpart of the brake actuation device. For example, the wedge shape of the gap of the brake levers can likewise be integrated into the brake actuation device. Likewise, one of the brake levers or only one brake pad can be fixed and only one brake lever is actuated.

[0082] FIG. 4 shows a schematic view of a spindle decoupling device 70 under FIG. 4A in a coupled position and under FIG. 4B in a decoupled position. In this case, the front encapsulation wall 52 has a fixed actuation arm 58 for the spindle decoupling device 70. In FIG. 2, the actuation arm 58 for the spindle decoupling device 70 is shown with dashed lines. This is offset from the spindle 20 in the horizontal longitudinal direction of the ring spinning machine so that it can actuate the spindle decoupling device 70 arranged next to the spindle 20.

[0083] In the embodiment shown, the spindle decoupling device 70 has a slide 72 guided linearly on the spindle rail 2. A decoupling roller 71 with a vertical axis of rotation is mounted on the slide 72 (the rotary axis is parallel to the spindle axis). The slide 72 is connected to the spindle rail 2 or a guide plate for the slide 72 via a knee lever 73. Actuation of the knee lever 73 results in a linear displacement of the slide 72 with the decoupling roller 71.

[0084] The spindle decoupling device 70 is arranged in such a way that the decoupling roller 71 lifts the drive belt 6 off the spindle 20 (or the wharve 21 of the spindle 20) when the knee lever 73 is actuated (see FIG. 4B), in order to prevent the spindle 20 from becoming hot in the braked state. This is particularly advantageous for higher spindle speeds and greater power transmission.

[0085] For actuating the knee lever 73 or the spindle decoupling device 70, the front encapsulation wall 52 has an actuation arm or actuating lever 58 connected in a rotationally fixed manner. When the actuation arm 58 is removed from the knee lever 73, the drive belt 6 returns the decoupling roller 71, the slide 72 and the knee lever 73 to the initial position. The process can be supported by a suitable mechanism, e.g. by a spring or the like, and the movements can be limited so that the end positions are defined but the slide 72 is removable.

[0086] Likewise, other actuation mechanisms of the decoupling roller, such as eccentrics or partial eccentrics, are conceivable to disengage the decoupling roller. What all solutions have in common, however, is the lifting of the drive belt from the spindle.

LIST OF REFERENCE SIGNS

[0087] 1 Ring spinning machine [0088] 2 Spindle rail [0089] 3 Ring rail [0090] 4 Crossmember (balloon limiter) [0091] 5 Crossmember (thread guide) [0092] 6 Drive element/tangential belt [0093] 7 Drafting system [0094] 10 Spinning position/spinning position device [0095] 11 Sliver [0096] 12 Yarn [0097] 13 Package body/spinning cop [0098] 14 Thread balloon [0099] 20 Spindle [0100] 21 Wharve [0101] 22 Spindle bearing [0102] 30 Spinning ring [0103] 31 Ring traveller [0104] 40 Thread guide [0105] 41 Balloon limiter [0106] 50 Encapsulation [0107] 51 Rear encapsulation wall [0108] 52 Front encapsulation wall [0109] 53 Leg [0110] 54 Hinge/rotary axis [0111] 55 Brake actuation device [0112] 56 Actuation arm [0113] 57 Ball [0114] 58 Actuation arm for spindle decoupling device [0115] 60 Spindle brake [0116] 61 First brake lever [0117] 62 Second brake lever [0118] 63 Hinge [0119] 64 Spring element [0120] 65 Stop surface for increasing brake effect [0121] 66 Stop surface for constant brake effect [0122] 70 Spindle decoupling device [0123] 71 Decoupling roller [0124] 72 Slide [0125] 73 Knee lever