CN105908290B

CN105908290B - The arrangement of compressor reducer is placed on the bottom roll of drafter

Info

Publication number: CN105908290B
Application number: CN201610089605.1A
Authority: CN
Inventors: 汉斯·沙赫勒克尔
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-20
Filing date: 2016-02-17
Publication date: 2018-06-01
Anticipated expiration: 2036-02-17
Also published as: CN105908290A; DE102015002206A1

Abstract

The present invention relates to a kind of arrangements that compressor reducer is placed on the bottom roll of drafter, the arrangement is with compressor reducer a) with placed side and the bottom roll of circumferential surface b) with smooth circumferential surface and rough circumferential surface or with groove, it is characterized in that, the placed side (9) of the compressor reducer not only recline the bottom roll (7) rough circumferential surface or circumferential surface with groove, also recline smooth circumferential surface (11a, 11b).

Description

The arrangement of compressor reducer is placed on the bottom roll of drafter

Technical field

The present invention relates to a kind of arrangements that compressor reducer is placed on the bottom roll of drafter.

Background technology

The compressor reducer of the compression set of spinning machine drafting mechanism is used to compress one or more in compressional zone in drafting machine The fiber webs being stretched in structure.On the direct of travel of fiber webs, compressional zone is arranged in drafter downstream.Such pressure Contracting device is disclosed by EP1501967B1.

On its operating position, compressor reducer is placed on the rotating roller of drafter or reclines thereon.In the case, It is preferably the bottom roll or bottom roll of the outlet roller pair of drafter.The contact surface towards rotating roller of compressor reducer is in this feelings Unfavorable abrasion should not be run under condition, so that the fiber from fiber webs to be compressed loses in vain.Bottom roll It surface also should be without unfavorable abrasion, because compression set is generally by material such as ceramic material structure wear-resisting and that abrasion is small Into.But this is done so that compression set is costly.In addition, such compressor reducer may be in installation and/or upkeep operation easily Because carelessness for example falls to the ground and is damaged, and so that it is unavailable, thus must be disposed off.

So far, compressor reducer or it is made of plastics or is made of ceramic material.Ceramic compressor reducer does not almost run into mill Damage, but it is very expensive and possible broken.And the manufacture of plastic constrictor is at low cost and resistance to broken.But they wear must be than very fast. Therefore reason, it is necessary to the dimensional stability of plastic constrictor is monitored, to avoid the fiber attrition in compressional zone as far as possible.

DE102010054850A1 proposes a kind of split type compression set, wherein, at least compressor reducer sticks on bottom roll On " seating part " be wear-resisting composition.The structure being made of multiple portions is complicated.

Using as the compressor reducer (fibre guide device) disclosed in DE102009038267A1 cause by power regulating member by Compressor reducer is pressed onto pressing force on bottom roll by regulation adjusting, to improve its running stability and and then yarn obtained by improving Line mass.

The content of the invention

It is a kind of for placing the arrangement of compressor reducer on the bottom roll of drafter the task of the present invention is providing, In, the shortcomings that knowing from the prior art, is avoided or is at least significantly mitigated.

The task is completed using the arrangement of the present invention, i.e., a kind of to be used to place pressure on the bottom roll of drafter The arrangement of contracting device, with compressor reducer a) with placed side and b) with smooth circumferential surface and rough circumferential surface or band The bottom roll of the circumferential surface of groove, it is characterized in that, the placed side of the compressor reducer not only stick on bottom roll rough circumferential surface or On circumferential surface with groove, also stick on smooth circumferential surface.The special advantage of arrangement of the present invention is, bottom roll it is rough Circumferential surface (why it is rough be because compared with fiber webs to be conveyed must generate friction and thus be for example formed with groove So as to success) it does not influence or does not damage compressor reducer and its compress the profile of raceway groove and do not disturb its dimensional stability.For this purpose, The maximum possible for obtaining reliably manufacturing for the uneven yarn of no fiber loss in compression channel region ensures.In addition, obtain with The advantages of big down, i.e. compressor reducer abrasion is minimum in compression channel region.

The present invention an Advantageous embodiments in be so designed that the arrangement, i.e. the smooth circumferential surface of bottom roll and Rough circumferential surface or circumferential surface with groove have same diameter.One great advantages of embodiment of the present invention are, bottom roll Although with smooth outer circumferential surface and rough outer circumferential surface, in the definitely no protrusion of the axis direction of circumferential cylinder surface.Not only Sliding circumferential surface can for example be formed with groove and then be polished.

The arrangement is so designed that in another Advantageous embodiments of the present invention, i.e. the compressor reducer, which has, to be carried Compression raceway groove, at least protrude from the contact surface of the placed side on bottom roll direction in region adjacent thereto first, should Contact surface is smoothed due to the run-in of the arrangement after the of short duration starting time so that the placed side is seamlessly pacified It is placed on bottom roll.The gapless it may be advantageous that the compression raceway groove of the compressor reducer is tried one's best in the range of its whole length therefore Ground sticks on the rough part of bottom roll, such as the part with groove, i.e., on " contact surface ".Moreover, then also ensure do not have Fiber leaves compression raceway groove and slips over and lose between compressor reducer and bottom roll, this will adversely affect yarn to be manufactured Quality.The shortcomings that plastics actually easy to wear, is inverted to advantage by arrangement according to claim 3 herein, That is, the result is that two components realize optimal adaptation for shape and size.

Description of the drawings

For a better understanding of the present invention, the present invention is described in detail by attached drawing below with reference to embodiment.

Fig. 1 a show the very schematical sectional view for the drafter for including Compression and Expansion mechanism；

Fig. 1 b overlook the drafter part shown according to Fig. 1 a with very schematical, also show according to existing There is the bottom roll with the compressor reducer placed of technology；

Fig. 1 c highly diagrammatically show the compressor reducer according to Fig. 1 b from below；

Fig. 2 a highly diagrammatically illustrate an exemplary part of arrangement of the present invention with vertical view；

Fig. 2 b highly diagrammatically illustrate another exemplary part of arrangement of the present invention with vertical view；

Fig. 3 a schematically show the compressor reducer of arrangement of the present invention very much from fiber webs approaching side；And

Fig. 3 b schematically show the compressor reducer according to Fig. 3 a from below very much.

Reference numerals list

1 jaw line；

2 jaw lines；

3,3a, 3b, 3c compressor reducer；

4 magnets；

5 output press rolls；

6 feed pressure rollers；

7 bottom rolls；

8 compression raceway grooves；

9 placed sides；

10 fiber webs；

The smooth circumferential surface of 11,11a, 11b；

The rough circumferential surface of 12,12a, 12b；

14 contact surfaces；

F arrows；

H protrusions

Specific embodiment

Fig. 1 a have been shown in section view the main of the current common drafter including Compression and Expansion mechanism of spinning machine (structure known to technical staff and the basic understanding on this mechanism is not described in detail) in component.

It is movably drafted from right to left in fig 1 a at this time by the fiber webs 10 of drafter, then it is not ( Show) it is arranged in the spinning mechanism in downstream and is twisted yarn.Fig. 1 a, Fig. 1 b and Fig. 1 c show the thin of this Compression and Expansion mechanism Section.

It is drafted to the fiber webs 10 for it is expected fiber number to leave at jaw line 1 between output press roll 5 and bottom roll 7 and lead Stretch mechanism.Compressor reducer 3 for conpressed fibers strip 10 is set between output press roll 5 and the feed pressure roller 6 for being arranged on downstream. The fiber webs of compression leave drafter at the jaw line 2 between output roller 7 and feed pressure roller 6.Fig. 1 a show foregoing Arrangement.

Compressor reducer 3 is placed on output roller 7 and for example by permanent magnet 4 and is pressed towards output roller 7, sees Fig. 1 b and therefore Abrasion is run into, which is influenced be subject to existing pressing force at this time.

Fig. 1 c are for display for the structure of the compression raceway groove of the compressor reducer 3 of fiber webs.It is seen that compression raceway groove 8 by Walk constriction.Compressor reducer 3 is generally made of plastics or ceramic material.Ceramic compressor reducer does not meet with abrasion, but costly and possible easy It is broken.Plastic constrictor manufacture cost is cheap and resistance to broken, but wears quickly, just as shown by the structure with reference to Fig. 1 b and as above institute As stating.Compressor reducer 3 is placed in or " ride and set " is in the Non-smooth surface part of output roller 7, but on the part with groove.Not only Sliding circumferential surface 12 or more or less sharp edge with groove cause advanced wear in plastic constrictor.

Illustrate how to avoid the shortcoming with reference to the design structure of arrangement of the present invention as shown in Figure 2 a and 2 b.Pressure Contracting device 3a is so designed that it is not simply disposed on the rough circumferential surface 12a with groove of bottom roll 7, but also places in place In on the smooth circumferential surface 11a of the rough circumferential surface 12a both sides with groove.

It is posted by smooth roller part or the compressor reducer 3a surfaces of circumferential surface 11a, i.e. placed side 9 does not meet in normal operation Abrasion is met, therefore the surface 12a with groove will not cause (interference) compressor reducer 3a with old.

Roller part with groove or rough circumferential surface 12a can have the diameter more than smooth part 11a according to Fig. 2 a Or equally big diameter is had according to Fig. 2 b.Compressor reducer 3a or 3b to be determined be the particularly important is at this time respectively according to arrow F Force direction on (Fig. 2 a and Fig. 2 b) be pressed towards bottom roll 7, herein, compressor reducer 3a or Fig. 3 b be equipped with compression raceway groove 8 in Centre region simply seems to be close on bottom roll 7 and hence compression raceway groove 8 compared with bottom roll 7 " closing ", but is not pressed It is tightened on bottom roll and so that compressor reducer runs into abrasion.

At this point for it is indispensable for the satisfactory compression of fiber webs 10 be the compression ditch of compressor reducer 3a, 3b Road 8 in the range of its entire circular arc development length as far as possible seamlessly stick on bottom roll 7 it is rough, for example with groove On circumferential surface 12a, 12b.Only in this way just ensure that no fiber leaves compression raceway groove 8 and between compressor reducer 3a, 3b and bottom roll 7 It slips over.

Using the present invention, Fig. 3 a and Fig. 3 b other Advantageous embodiments of its main feature are shown, with compression raceway groove 8 Compressor reducer 3c bottom surface (placed side for being close to the circumferential surface to bottom roll 7) also by further precise treatment and improvement.In order to do It to this point, utilizes, the compressor reducer 3c being made of plastics is ground in the rough region of bottom roll 7 (such as region with groove) Damage.Fig. 3 a and Fig. 3 b amplifications show compressor reducer 3c, have at the edge of brand-new state lower edge compression raceway groove 8 compared with compressor reducer The slightly convex contact surface 14 of the placed side of 3c.Because the raised H very littles of the entire placed side compared with compressor reducer 3c, it is convex It plays H and runs into very quick abrasion in operation is started, Specifically may wear to 9 nothing of surface of the compressor reducer 3c by groove always It sticks on gap on the smooth circumferential surface of bottom roll 7.Plastic constrictor 3c runs into more quick mill in the region with groove The fact that damage, is therefore as an advantage.Compressor reducer is automatically derived to a certain extent for the important size of optimal compression, is made Two components, i.e. compressor reducer and bottom roll obtain optimal adaptation for shape and size.

Claims

1. a kind of arrangement that compressor reducer is placed on the bottom roll of drafter, which has a) including placed side Compressor reducer and b) include smooth circumferential surface and the bottom roll of rough circumferential surface or the circumferential surface with groove, which is characterized in that the pressure The placed side (9) of contracting device not only recline the bottom roll (7) rough circumferential surface or circumferential surface with groove, but also recline and be located at The rough circumferential surface or the smooth circumferential surface (11a, 11b) of circumferential surface both sides with groove.

2. arrangement according to claim 1, which is characterized in that the smooth circumferential surface (11b) of the bottom roll (7) Circumferential surface (12b) with the rough circumferential surface or with groove has identical diameter.

3. arrangement according to claim 1 or 2, which is characterized in that the compressor reducer (3) has contact surface (14), The contact surface carries compression raceway groove (8) and first at least in the region adjacent with the compression raceway groove towards the bottom roll (7) placed side (9) is protruded from, the contact surface is due to the run-in of the arrangement in the short of the arrangement It is smoothed after the temporary starting time so that the placed side (9) is seamlessly placed on the bottom roll (7).