SUPPORTING FRAME FOR A DRAFTING SYSTEM UNIT AND DRAFTING SYSTEM COMPRISING SUCH A DRAFTING SYSTEM UNIT

Abstract

A supporting frame for a drafting system unit for drafting a fiber band at a workstation of a textile machine as well as a drafting system comprising such a drafting system unit. In order to make a drafting system and a drafting system unit available, the supporting frame has a coupling section and a locking unit for detachably connecting the supporting frame to an assigned workstation.

Claims

1. A supporting frame for a drafting system unit for drafting a fiber band at a workstation of a textile machine, in which case the supporting frame has at least one bearing point for pivotably bearing a weighting arm assigned to the drafting system unit, characterised in that the supporting frame has a coupling section and a locking unit for detachably connecting the supporting frame to the textile machine.

2. The supporting frame according to claim 1, wherein the textile machine is an assigned workstation.

3. The supporting frame according to claim 1, characterised in that the coupling section is configured for arrangement on a take-up section of the workstation for moving the supporting frame between a release position, in which the supporting frame can be removed from the assigned workstation, and an operating position, in which the supporting frame is arranged in a secure position at the assigned workstation for operation of a weighting arm bome on the supporting frame.

4. The supporting frame according to claim 3, characterised in that the coupling section has a recess adapted to the take-up section.

5. The supporting frame according to claim 4, wherein the take-up section is a frame brace of the textile machine.

6. The supporting frame according to claim 4, characterised in that the recess is configured in one piece with the supporting frame.

7. The supporting frame according to claim 1, characterised in that the locking unit has a detent body which can be moved between an opening position and a machine in an operating position of the supporting frame.

8. The supporting frame according to claim 7, characterised in that the detent body is pretensioned in the direction of the latching position.

9. The supporting frame according to claim 1, characterised in that the supporting frame is configured to accommodate a lower roller assigned to an upper roller (7) which can be arranged on the weighting arm for the rotationally movable bearing of the same.

10. The supporting frame according to claim 1, characterised in that the supporting frame is configured to accommodate at least one additional aggregate.

11. The supporting frame according to claim 10, characterised in that the at least one additional aggregate is an arrangement of a drive unit of the lower roller, a communication unit, a control device of the drive unit, or a combination thereof.

12. The supporting frame according to claim 10, characterised in that the supporting frame has a fastening rail to accommodate the at least one additional aggregate.

13. The supporting frame according to claim 1, characterised in that the supporting frame has two bearing points, each of which is for pivotably bearing a weighting arm.

14. The supporting frame according to claim 13, characterised in that two weighting arms bear at least one upper roller between the two weighting arms.

15. The supporting frame according to claim 1, characterised in that the supporting frame has a handling element.

16. The supporting frame according to claim 1, characterised in that the handling element is a gripping element.

17. A drafting system for a textile machine comprising a drafting system unit having a weighting arm with at least one upper roller, characterised in that the drafting system unit has a supporting frame having a coupling section and a locking unit for detachably connecting the supporting frame to the textile machine, on which the weighting arm is pivotably borne.

18. The drafting system according to claim 17, characterised in that two weighting arms with at least one upper roller between the two weighting arms are arranged on the supporting frame, the weighting arms being connectable or connected to each other via a gripping element.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0033] An embodiment example of the invention is explained below with reference to the drawings. In the drawings:

[0034] FIG. 1 shows a perspective view of a spinning position with an assigned drafting system of a textile machine arranged in an operating position.

[0035] FIG. 2 shows a perspective view of the spinning position and drafting system of FIG. 1 with the drafting system in a removed position.

[0036] FIG. 3 shows a side view of the spinning position and drafting system of FIG. 1 in the operating position of the drafting system.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0037] The following description of the embodiments of the present invention is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. The following description is provided herein solely by way of example for purposes of providing an enabling disclosure of the invention, but does not limit the scope or substance of the invention.

[0038] FIGS. 1 and 3 illustrate a drafting system 2 assigned to a spinning position 1 in its operating position, in which the drafting system 2 is fixed relative to the spinning position 1. The spinning position 1 and the drafting system 2 form a workstation of a textile machine with a large number of workstations arranged next to one another, which is not illustrated here.

[0039] In the operating position illustrated in FIGS. 1 and 3, a fiber band, which is not illustrated here, fed into the drafting system 2, is drafted between a total of four roller drives, each consisting of an upper roller 7 and an assigned lower roller, and is fed into a spinning nozzle 10 of the spinning position 1.

[0040] The lower rollers driven by individual drives 8 as well as the upper rollers 7 arranged on two weighting arms 6 running in parallel are arranged on a supporting frame 3, in which case the weighting arms 6 are pivotably connected to the supporting frame 3. The supporting frame 3 has two side elements 15, each of which features a recess 5.

[0041] For the assembly of the drafting system 2 illustrated in FIG. 2 in a dismantled position, the drafting system 2 is first arranged in a release position on the textile machine in which recesses 5 of the supporting frame 3 are placed on a supporting tube 4 of the textile machine which forms a take-up section. To put the textile machine into operation, the drafting system 2 is moved from this release position to the operating position of the drafting system 2 illustrated in FIGS. 1 and 3 by the drafting system 2 pivoting around the supporting tube 4. In the operating position, detent hooks 12 connected to the side elements 15, which are arranged at one end of the side elements 15 of the supporting frame 3 opposite the recesses 5, engage with a rod-shaped detent hook receptacle 13 at the spinning position 1, in which case a detent hook opening 14 partially grips the rod-shaped detent hook receptacle 13.

[0042] Via the detent hooks 12 and the detent hook receptacle 13, the drafting system 2 is aligned with respect to the spinning position 1 in such a way that a drafted fiber band from the drafting system 2 reliably reaches the spinning nozzle 10 of the spinning position 1. A control device 11 is arranged on the underside of the supporting frame 3, in which case the control device 11 is borne on the supporting frame 3 in a manner allowing linear sliding by means of a guide rail not illustrated here, which is fixed to the side elements 15 via fastening holes 16.

[0043] The weighting arms 6 arranged at a distance from one another each serve jointly to bear the upper rollers 7 between the weighting arms 6, so that the upper rollers 7 are pressed with an even load force against the lower rollers which are each driven by individual drives 8. For convenient adjustment of the drafting system 2, a handle 9 is arranged on the weighting arms 6, which also allows the weighting arms 6 to be pivoted relative to the lower rollers after previously having been unlocked.

LIST OF REFERENCE NUMBERS

[0044] 1 Drafting system [0045] 2 Spinning position [0046] 3 Supporting frame [0047] 4 Supporting tube [0048] 5 Recess [0049] 6 Weighting arm [0050] 7 Upper roller [0051] 8 Drive unit [0052] 9 Gripping element [0053] 10 Spinning nozzle [0054] 11 Control device [0055] 12 Detent body/detent hook [0056] 13 Detent hook receptacle [0057] 14 Detent hook opening [0058] 15 Side elements [0059] 16 Fastening holes

[0060] It will therefore be readily understood by those persons skilled in the art that the present invention is susceptible of broad utility and application. Many embodiments and adaptations of the present invention other than those herein described, as well as many variations, modifications and equivalent arrangements, will be apparent from or reasonably suggested by the present invention and the foregoing description thereof, without departing from the substance or scope of the present invention. Accordingly, while the present invention has been described herein in detail in relation to its preferred embodiment, it is to be understood that this disclosure is only illustrative and exemplary of the present invention and is made merely for purposes of providing a full and enabling disclosure of the invention. The foregoing disclosure is not intended or to be construed to limit the present invention or otherwise to exclude any such other embodiments, adaptations, variations, modifications and equivalent arrangements.