DE102007056187A1 - Thread breakage suction device for use in spinning machine, has sectional suction collection pipes, in which multiple single-suction pipes flow - Google Patents

Abstract

The thread breakage suction device has sectional suction collection pipes (1), in which multiple single-suction pipes flow. The sectional suction collection pipes empty into a suction collection channel. The sectional suction collection pipes empties at one of the ends, where the end is downstream to a feeling device (17) scanning a passage by fiber material.

Description

The The invention relates to a yarn breakage suction device a spinning machine with section suction collecting pipes, into which several individual suction pipes open, wherein the section intake manifolds in at least empty a suction collection channel.

State of the art

It is known ( DE 913 993 C ; CH 315 287 C ), to arrange a light barrier or an electrode system in the thread breakage collection channel of a roving frame in front of its mouth in the refuse collection box, through which the transport of roving tears or fiber pegs detected in the yarn break collection channel and measures can be initiated. However, these devices give no indication at which of all the spinning unit of the machine about a thread could be broken and could have caused the occurrence of waste.

In the CH 321 056 C is an apparatus for monitoring a textile machine, in particular again a roving disclosed, in which in the thread break suction duct, a mechanical device is installed in the form of a rake, which is deflected by sucked threads. This deflection actuates electrical contacts that trigger measures.

In the CH 309 514 C is a single-thread breakage detection is shown, which triggers an alert to the yarn breakage announcement when breaking a thread at a spinning station at this spinning station.

General description of the invention

Of the Invention was the object of the thread breakage suction device so that it is suitable to break yarns in one narrow section of the drafting system of a roughing or fine spinning machine to capture us. She accomplishes this task the features specified in the main claim.

The Section exhaust manifolds empty at one end, the one Subsequent sensor for sucked Luntenreste downstream is. This sensing device is a signaling device assigned to a yarn breakage at one of the relevant Section suction manifold associated spinning station points and draws attention. The on a thread break at a spinning station one section is sufficient, one through the signaling device This section called operator can the faulty spinning station readily recognize.

Around in the discharge with each connected Absaugröhrchen a spinning station to take account of increasing volumes of exhaust air, are the section Absaugsammelrohre with increasing in the suction direction Cross section provided.

Around also with the increasing distance of the section-Absaugsammelrohre from the central suction source decreasing induced draft to take into account are in the suction holes of the section suction manifolds Aperture discs inserted, their apertures with increasing distance from the suction source progressively larger cross-section exhibit. This approximates in the sectional suction manifolds equal negative pressures achieved. The cross-section of the aperture can increase at any section suction manifold, it can but also several consecutive section Absaugsammelrohre equipped with stepped raised apertures become.

The Aperture discs are advantageous in grooves at the outlet openings the section Absaugsammelrohre inserted. This allows the suction effect easy and lightweight in certain section collection tubes the circumstances are adapted.

The Sectional suction collecting tubes advantageously consist of channel-shaped Tubs made of plastic, the plates having through the intake manifold are covered. These tubs are provided with longitudinal grooves, by means of which they are on flanged edges of two freely ending walls of the leading to the central suction source Collection channels are plugged.

To the Holders of the section suction collection tubes are provided holding webs, which have grooves on their narrow sides, by means of which they also on the flanged edges of the free-ending walls of the collecting channel can be plugged. The section intake manifolds point to their not inserted in the open side of a collecting channel Narrow sides ledges, by means of which they are in grooves on the long sides can engage the holding webs.

Everyone second retaining web has on one of its longitudinal sides a closed groove and on the opposite side an open groove, the can be closed by a screw-on cover strip. Thereby It is possible to use individual section suction manifolds for Picking free. By moving the open side Haltesteges can also the adjacent section Absaugsammelrohr be removed.

Specific description of the invention

In the figures of the drawing is an embodiment of Invention shown.

In show her

1 the top view of a section of the section Absaugsammelrohres;

2 the side view of the object of the 1 ;

3 the cross section through a suction with inserted section Absaugsammelrohr;

4 the section through a one-piece retaining bridge;

5 the section through a two-part retaining bridge;

6 the longitudinal view of a retaining web;

7 the view of an aperture disc.

Like from the 1 and 2 As can be seen, there is one below as a section Absaugsammelrohr 1 designated section of a suction device made of a preferably molded plastic tub 2 and a screwed on this lid 3 preferably made of sheet metal. Such a section advantageously extends from a punch of a drafting system to the adjacent punch. She is in a suction channel 4 used, this is an interruption 5 has one of its wall sections. The edges of this interruption are crimped and the tub 2 has a longitudinal groove 6 on, by means of which it can be attached to this flange and suction-tight with the suction channel 4 is connectable.

In the lid 3 are so many intake manifolds 7 arranged as spinning stations are present in the extending from punch to punch section. On these intake manifolds are in 3 reproduced suction tube 8th plugged through the broken at spinning stations Lunten in a section Absaugsammelrohr 1 sucked in and through one on its side surface 9 arranged opening in the suction channel connected to a suction 4 be dissipated. Because the air flow from the intake manifold 7 increases in the direction of flow to the opening, the tub 2 provided with in the outflow according to increasing cross-section.

In the edge of the area 9 of the section suction manifold 2 , is discharged through the sucked air, a groove is mounted, into which a diaphragm disc 10 with aperture 11 can be inserted, which throttles the air extraction from a section suction manifold. As the induced draft in the suction channel 4 at its beginning adjacent to the suction source top highest, but at its end is lowest, have the aperture disks 10 with increasing distance of the section Absaugsammelrohre from the suction source increasing aperture 11 on. The aperture of the in 7 reproduced aperture disc is just one example. Depending on the length of the spinning machine or the suction channel aperture plates can be provided with up to ten different diameters or cross sections of the aperture.

The section intake manifolds 2 be on the flared edges of the suction channel 4 attached. To hold them, are in the break 5 the wall of the suction channel 4 comprehensive holding webs 12 intended. They have grooves on their narrow sides 13 on, with which they surround the crimped edges of the suction channel and are held in it. They also have grooves on their two long sides 14 into which the section suction manifolds 1 with strips attached to their narrow sides 15 intervention.

They are integral holding webs 12 provided, in which the ledges 15 the section intake manifolds 1 be plugged in from both sides. At every second joint are two-piece holding webs 12 ' provided, on one side an open groove 14 ' have, which can be fastened with screwed along the dash-dotted center line screws cover strips 16 can be closed. This gives the possibility after removal of a cover page 16 a sectional suction manifold 1 and after lateral displacement of the retaining bar 12 ' Also remove the adjacent section suction manifold and clean or replace if damaged.

The retaining bars 12 . 12 ' consist advantageously of plastic injection molding.

After passing through the aperture plate 10 can suck the exhaust air through a sensing device 17 directed to the discharge of broken fuse and in response to a signaling device 18 , for example, a signal lamp turns on. These sensing devices are desirably not on the respective section suction manifold 1 arranged but in the suction channel 4 , As a result, they remain stationary when removing a section suction manifold. These sensing devices can be of any known type: they can be designed as a light barrier, as a mechanical sensor, as an electrostatic sensor or in any other functionally appropriate manner.

1

Sectional Absaugsammelrohr

2

tub

3

cover

4

suction

5

interruption the wall of the suction channel

6

longitudinal groove

7

intake

8th

suction tube

9

Emptying end of a section suction manifold 1

10

aperture disc

11

aperture

12 12 '

holding web

13

Grooves in the retaining bar 12 . 12 '

14 14 '

Grooves in the retaining bar 12 . 12 '

15

Bars on the section intake manifolds 1

16

Cover strip of the retaining bar 14 '

17

sensing device

18

signaling device

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 913993 C [0002]
• CH 315287 C [0002]
• - CH 321056 C [0003]
• - CH 309514 C [0004]

Claims (12)

A yarn breakage suction device on a spinning machine with section suction collecting tubes, into which several individual suction tubes open, the section suction tubes discharging into at least one suction collecting channel, characterized in that the section suction collecting tubes ( 1 ) at one of its ends ( 9 ) emptying and this end a sensing the passage of fiber material sensing device ( 17 ) is subordinate. Thread breakage suction device according to claim 1, characterized in that the sensing device ( 17 ) for switching on a signaling device ( 18 ), which is based on the occurrence of an error at a spinning station of the section suction collecting tube ( 1 ) to which it is assigned. Yarn break suction device according to claim 1, characterized in that the section suction collecting tubes ( 1 ) its cross-section to the emptying end ( 9 ). Yarn break suction device according to claim 1, characterized in that in the emptying end ( 9 ) of each section suction manifold ( 1 ) an aperture disc ( 10 ) can be used. Thread breakage suction device according to claim 4, characterized in that the aperture disc ( 10 ) into an emptying end ( 9 ) of a section suction collection tube ( 1 ) surrounding groove are inserted. Thread breakage suction device according to claim 4, characterized in that the cross section of the apertures ( 11 ) of the diaphragm discs ( 10 ) with their increasing distance from the suction source of Absaugsammelkanals ( 4 ) is chosen to be increasingly larger. Thread breakage suction device according to claim 6, characterized in that the diameter of the apertures ( 11 ) in steps greater. Yarn break suction device according to claim 1, characterized in that the section suction collecting tubes ( 1 ) by a trough-shaped pan ( 2 ) and a lid closing the tub ( 3 ) are formed. Yarn break suction device according to one of the preceding claims, characterized in that the section suction collecting tubes ( 1 ) Longitudinal grooves ( 6 ) by means of which they on flanged edges of two freely ending walls of the collecting channel ( 4 ) are attachable. Thread breakage suction device according to one of the preceding claims, characterized in that retaining webs ( 12 . 12 ' ), which have grooves on their narrow sides ( 13 ) by means of which they on the flanged edges of the free-ending walls of the collecting channel ( 4 ) are attachable. Yarn break suction device according to claim 10, characterized in that the section suction collecting tubes ( 1 ) on its not in the open side of a collecting channel ( 4 ) inserted narrow sides strips ( 15 ), by means of which they are in grooves ( 14 . 14 ' ) of the holding webs ( 12 . 12 ' ) can intervene. Thread breakage suction device according to claim 11, characterized in that retaining webs ( 12 ' ) on one of its sides a closed groove ( 14 ) and on the opposite side an open groove ( 14 ' ), which by a screw-on cover strip ( 16 ) is closable.