CN100485101C

CN100485101C - Spinning machine with syntaxis device

Info

Publication number: CN100485101C
Application number: CNB2005100229933A
Authority: CN
Inventors: L·马利纳; F·布拉特曼
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG
Priority date: 2000-08-28
Filing date: 2001-08-27
Publication date: 2009-05-06
Anticipated expiration: 2021-08-27
Also published as: CN1789509A; DE10139813A1; DE10139813B4

Abstract

A spinning machine which has a convergence device (26) between a traction device and a twisting as well as winding device, also a convergence element (262) sets behind the mesh screen (30). Setting a suction element (200) with a suction device (201) inner the mentioned convergence device (262). Fibrous tissue (10) through the convergence device (26) between the mesh screen (30) and the convergence element (262), the height of the mesh screen (30) and the convergence element (262) is 0.1-5 mm. among the gap of h height, the air flowing transversely in the fibrous tissue (10) can impulse the projecting fibre margin in the fibrous tissue, as a result, the hairiness of the yarn is lower than the traditional yarn.

Description

Spinning machine with converging device

Technical field

The present invention relates to a kind of spinning machine, particularly a kind of annular spinning machine, in a draw-gear and one twisting and coiler device or have the converging device that is used for fibr tissue between them, a porose focal element, this element internal have a magnetic-attraction element and the outside mesh screen in the magnetic-attraction element effective coverage with suction device.

Background technology

This spinning machine is described in German patent application DE44262493 or 19815325.2, and wherein fibr tissue is covered by mesh screen, so that air flow is converged in the converging device.

Summary of the invention

In order to improve yarn quality, each parts that also comprises the converging device of mesh screen will be optimized.

This purpose reaches by a kind of spinning machine.The invention provides a kind of spinning machine, in a draw-gear and one twisting and coiler device or have the converging device that is used for fibr tissue between them, a porose focal element, this element internal has a magnetic-attraction element and the outside mesh screen in the magnetic-attraction element effective coverage with suction device, it is characterized in that mesh screen and place clearance height between the focal element of fibr tissue, also promptly reduce at material stream and/or perpendicular to the direction of material stream from the mesh screen edge towards central authorities.

The converging device of spinning machine be arranged within pulling equipment and twisting and the winding apparatus or between.This critical piece is a porose focal element, and its inside is provided with a magnetic-attraction element with suction device.Mesh screen is arranged on the outside, and the distance that separates with focal element is in the effective range of magnetic-attraction element, and wherein the clearance height between mesh screen and the focal element is 0.1 and 5mm, and especially 1 to 2.0mm, preferably 1.5mm.The best clearance height depends on the geometrical condition of converging device, depends on the yarn count of the yarn that will produce.Mesh screen preferably is arranged on apart from the position of the roll spacing between the pulling equipment less than 30mm.This mesh screen must be offset less than 20mm to absorber element towards the direction of drawing of fibr tissue, is preferably 10mm, more preferably 5mm.This can guarantee to be captured fast from any fiber that fibr tissue stretches out, and is increasing air flow after draw-gear occurs, so any outstanding fiber on the edge will be in face of fibr tissue, and incorporates fibr tissue into as far as possible in next twisting process.The annular spinning apparatus is preferably used as a device that rotation is provided.Mesh screen protrudes on the fibr tissue, and is vertical with its direction of motion, reaches that to flow between mesh screen and the focal element air in the gap vertical with the fibre stream direction as far as possible, and is parallel to the degree of the direction that converges.Especially at the initial stage of converging technology, need air in both sides from the mesh screen marginal flow to fibr tissue.Need ambient atmosphere to be parallel to the Surface runoff of focal element, especially vertical with fibr tissue with the part that fibr tissue does not converge as yet.When on focal element, guiding fiber in the mode that tilts, the mesh screen edge that is in the fibr tissue traffic direction substantially must be arranged in make fibr tissue inclination by the air-flow support.For example the mode in the mesh screen each all is arranged on the fibr tissue input side with recessed portion in the middle part of is sucking in two fibr tissues that advance on the focal element in zone and is realizing.

The width that converges the zone is provided by the hole on the focal element on the one hand, is provided by one or several suction inlets that suck in the element on the other hand.Converge the width preferably 1 and 100 in zone, relevant with the clearance height between focal element and the mesh screen.Described clearance height and each laterally projecting mesh screen length ratio in the fibr tissue throughput direction of measuring from a side are preferably greater than 2, more preferably greater than 3 greater than 1.The suction zone length of field of magnetic-attraction element and the assembling area length of field of focal element are preferably 20-50mm.Focal element can be arranged to a cylindrical rigid cylindrical, and it is the outlet roller of pulling equipment, or as the conveyer belt in a continuous hole, it is driven along the fibr tissue throughput direction by a roller in the output or the downstream of pulling equipment.In the focal element internal placement ducted body is arranged, ducted body comprises an opening of facing the attraction zone of converging zone or focal element endoporus.On the whole periphery in the assembling area width range, focal element is provided with a plurality of circular circular holes that are preferably, and bore dia is 0.1 to 4mm, and these holes are arranged among 1 to 50 row one by one, are positioned at the throughput direction of fibr tissue.Mesh screen extends to both sides, and is vertical with the throughput direction of fibr tissue away from fibr tissue, enters width and be the zone in 1-100 times in gap between mesh screen and the focal element.

Description of drawings

Referring now to embodiment shown in the drawings the present invention is described in more detail, wherein:

Fig. 1 schematically shows converging device at the side view perpendicular to the fibr tissue throughput direction;

The longitudinal section of whole converging device in the mesh screen zone in Fig. 2 presentation graphs 1;

Fig. 3 represents along the top view of Fig. 1 arrow 26 directions;

Fig. 4 a represents two kinds of configurations with respect to the focal element endoporus of suction element to 4b.

The specific embodiment

According to Fig. 1, fibr tissue 10 utilizes the pulling equipment (not shown), discharges from the roller gap between feeding roller 24 and the focal element 262, thereby makes feeding roller 24 and focal element 262 can become the outlet roller of pulling equipment.In the distance of roller clearance measurement, be provided with one at the periphery of focal element 262 and converging roller 262 tops and converging the mesh screen 30 that the roller distance is h, with regard to magnetic-attraction element 200, the side-play amount of these mesh screen 30 leading edges and fibr tissue throughput direction is b.As shown in Figure 1, clearance height h reduces downwards gradually at the throughput direction of fibr tissue, and the air that the result laterally promptly goes into the absorption in the gap between mesh screen 30 and the focal element 262 in the axial flow of

roller

24 and 28 is concentrated gradually.

According to Fig. 1, clearance height h measures boost line and begins to descend gradually away from the position of focal element 262 from being positioned on the material flow path direction between the surface of mesh screen 30 and focal element, therefore causes the wedge shape development in gap between mesh screen 30 and the focal element 262.Clearance height h can circumferentially reduce according to linear function or a higher order functionality the whole of whole focal element.From near mesh screen 30 tops a bit, clearance height h can reduce according to another function at the circumferencial direction of focal element.Under the simplest situation, be positioned at the end of outlet roller 28 up to mesh screen 30, this clearance height all is a constant.In addition, Fig. 2 is to represent from mesh screen 30 edges near 30 thick line towards the central authorities that fibr tissue is set, gap between mesh screen 30 and the focal element 262 also is that clearance height h can reduce, and causes quickening gradually according to the hydrodynamics continuity law along the air flow that arrow flows on u.The clearance height h that (according to Fig. 2) all reduces gradually on the throughput direction of the fibr tissue 10 that is positioned at focal element 262 (Fig. 1) periphery and the direction vertical with throughput direction that is lower than mesh screen 30 thick lines at longitudinal section causes convergence effect because the air flow that quickens and further improving continuously.

Converging device 26 also is provided with a magnetic-attraction element 200 in focal element 262 inside, and this element comprises the attraction zone of an opening surface to the hole of focal element 262, and ambient atmosphere is sucked or discharges by a suction device 201 thus.This fibr tissue 10 converge zone 264 by the roller gaps between focal element 262 and the outlet roller 28, wherein fibr tissue is twisted with the fingers into a count yarn by the effect of twisting apparatus (not shown).

Fig. 2 represents the profilograph of converging device 262, and it is under same magnetic-attraction element 200, on the fibr tissue 10a on mesh screen 30 and focal element 262 outer surfaces.Along arrow laterally flow into 30 and 262 air along the arrow under the hole 266 by the hole 266 in the assembling area 200a of magnetic-attraction element 200.The edge of mesh screen 30 protrudes in and converges outside the zone 264, and its mesopore 266 horizontal left and right sides side-play amounts are u, therefore forms a pipeline that makes the air aligned fibers tissue that enters between mesh screen 30 and focal element 262.Fibr tissue 10 outstanding edge fibers are reached unanimity.A width m is extended in hole 266 in focal element 262, be k thereby make the width of suction inlet 200a.

As shown in Figure 3, two

fibr tissue

10a, 10b can be conducted through focal element 262.The throughput direction of

fibr tissue

10a or 10b tilts to the axle of focal element, and promptly angle is greater than 90 degree.Mesh screen 30 covers two fibr tissue 10a, 10b.A recess 30a must provided, so that in ambient atmosphere can as far as possible laterally flow into gap between mesh screen 30 and the focal element 262 downwards from described recess 30a between the fibr tissue of fibr tissue entrance side.Attract regional 200a to tilt along dotted line.And extend a length 1 towards the direction of fibr tissue 10a below.Magnetic-attraction element 200 is provided with one and attracts regional 200a, this zone 200a is positioned at the throughput direction of fibr tissue 10, becomes an angle of 90 degrees with the axle of focal element 262 or spend greater than 90, and the clearance height between the focal element of mesh screen and placement fibr tissue, also promptly reduce from the mesh screen edge towards central authorities at material stream and/or perpendicular to the direction that material flows.This basis is measured perpendicular to the projection of the converging device 26 of the axle of focal element 262.

In Fig. 4 a, the width that extend in hole 266 is bigger than the width that attracts regional 200a, is u so that mesh screen 30 exceeds the edge that attracts regional 200a or exceeds the elongation that converges the zone.In this case, converging zone 264 is limited in the width that attracts regional 200a.According to Fig. 4 b, the effective width that converges zone 264 is different from the width in hole 266, even attract a bigger zone of width k extend through in zone.In this case, mesh screen 30 is laterally projecting is u in the overhang that converges on the zone 264.Overhang u can adopt 100 times of clearance height h.

The optimum value of the above-mentioned size of mentioning all is an absolute value, and relevant with accompanying drawing.Described amount is that the yarn count scope that is suitable for is Ne=10...80.The yarn quality value that adopts above-mentioned converging device acquisition is considerably beyond traditional annular spinning machine.

As shown in Figure 2, mesh screen 30 can be provided with a hole 30b, perhaps can be made by a kind of gas permeable material.Utilization makes fiber more effectively converge on focal element perpendicular to the air-flow of the scheduled volume on focal element surface.

Claims

1, a kind of spinning machine, in a pulling equipment and one twisting and coiler device or have the fibr tissue of being used for (10 between them, 10a, converging device 10b) (26), has a porose focal element (262), there is a magnetic-attraction element (200) with suction device (201) this element (262) inside, with an outside mesh screen (30) in magnetic-attraction element (200) effective coverage, it is characterized in that mesh screen has a hole (30b), perhaps this mesh screen is made by a kind of gas permeable material.

2, spinning machine as claimed in claim 1 is characterized in that clearance height (h) between mesh screen (30) and the focal element (262) is 0.1 to 5mm.

3,, it is characterized in that the deviation of the roll spacing between mesh screen (30) and input roller (24) and the focal element (262) is (a)≤30mm as the spinning machine of claim 1 or 2.

4, spinning machine as claimed in claim 1 or 2 is characterized in that the side-play amount with respect to magnetic-attraction element (200) that mesh screen (30) is drawn orientation measurement at the last fibr tissue (10) of focal element (262) is (b)≤30mm.

5, spinning machine as claimed in claim 2 is characterized in that converging the width (m) in zone and the ratio of clearance height (h) is that (m/h)=1 is to 100.

6, spinning machine as claimed in claim 2 is characterized in that with respect to the width that converges zone (264) (m), is (u/h) from the ratio perpendicular to the outstanding length (u) of mesh screen (30) of the orientation measurement of the conveying fiber structure of a side and clearance height (h)〉1.

7, spinning machine as claimed in claim 1 or 2 is characterized in that focal element (262) is a cylinder as the pulling equipment outlet roller.

8, spinning machine as claimed in claim 1 or 2 is characterized in that focal element (262) is a continuous conveyer belt, and this conveyer belt is by a throughput direction driving that is positioned at the roller in pulling equipment output or downstream along fibr tissue (10).

9, spinning machine as claimed in claim 1 or 2 is characterized in that focal element (262) is provided with a plurality of diameters in converging zone (264) be 0.1 to the circular hole of 4mm.