CN102695826A

CN102695826A - Draft device of a drafting machine or a lap-forming machine

Info

Publication number: CN102695826A
Application number: CN2010800598890A
Authority: CN
Inventors: 吉罗拉莫·普兰迪尼; 罗伯托·托科利
Original assignee: Marzoli SpA
Current assignee: Marzoli SpA
Priority date: 2009-12-28
Filing date: 2010-11-23
Publication date: 2012-09-26
Anticipated expiration: 2030-11-23
Also published as: IT1397140B1; EP2519666A1; CN102695826B; BR112012015915B1; WO2011080611A1; BR112012015915A2; EP2519666B1; ITBS20090237A1

Abstract

A draft device (1) of a drafting machine or lap-forming machine on a spinning line comprises an opening unit (10) positioned upline of the draft unit (2). The opening unit (2) comprises opening cylinders with annular bosses or pairs of overlapping cylinders with a cylindrical helix, suitable to sink into each sliver entering the unit to open it, improving the conditions for subsequent drafting.

Description

The draw-gear of hauling machine or lapper

The present invention relates to a kind ofly be used for processing fiber and obtain hauling machine (drafting machine) or the draw-gear of lapper (lap-forming machine) on the spinning production line of yarn.

The textile mills that are used for Soft flocks (fibre flock) are transformed into yarn are made up of many machines, and these machines cleaning fibers are also located fiber abreast, to obtain fiber web and the final yarn that obtains.

This factory generally includes a plurality of jars and lapper, and the ribbon from carding machine is housed in jar, in lapper, makes single connection, traction and overlapping, forms net, reels to form volume.

An embodiment of the production line with jar and lapper has been described among the document EP-A1-1464739 with the applicant's name.

Usually, this process also comprises hauling machine, before the hauling machine discal patch is only moving on for following process, is pulled.

In both of these case, draw and all carry out through draw-gear.

The objective of the invention is to make a kind of draw-gear that makes the efficient raising of traction.

This purpose is through realizing according to the made draw-gear of claim 1.

From the following description that provides with the mode of limiting examples with reference to accompanying drawing, will be conspicuous according to the feature and advantage of draw-gear of the present invention, wherein:

Fig. 1 is the schematic side elevation according to draw-gear of the present invention;

Fig. 1 a has schematically shown the action of opening the unit according to of the present invention;

Fig. 2 shows the axonometric drawing of the draw-gear among Fig. 1;

Fig. 3 shows the unit of opening according to draw-gear of the present invention according to an embodiment;

Fig. 4 shows the schematic side elevation of draw-gear according to another implementation of the invention;

Fig. 4 a shows the unit of opening of draw-gear among Fig. 4;

Fig. 5, Fig. 6 and Fig. 7 show other embodiment of opening the unit according to of the present invention.

With reference to accompanying drawing, reference marker 1 is represented the draw-gear that is supplied to a plurality of S such as hauling machine or lapper on the whole.

This draw-gear comprise can traction item S traction unit 2.

Traction unit 2 comprises that at least two traction cylinders are right; A traction cylinder is to being positioned at another traction right rolling off the production line of cylinder (downline); Have different peripheral speeds, and make the right peripheral speed of the traction cylinder roll off the production line particularly greater than the right peripheral speed of traction cylinder of reaching the standard grade.The traction cylinder between the bar S that passes through since the difference of peripheral speed be pulled.The ratio of the peripheral speed that the right peripheral speed of the traction cylinder that rolls off the production line and the traction cylinder of reaching the standard grade are right is defined as " traction ".The traction value that increases is corresponding with stronger drawing-in motion, that is to say the elongation that has increased bar.

According to the embodiment that illustrates, traction unit 2 comprises:

First draw cylinder by what following cylinder 4a and upward pressure cylinder 4b formed to 4;

Second draw cylinder by what following cylinder 6a and upward pressure cylinder 6b formed to 6;

The 3rd traction cylinder that is formed by down cylinder 8a and said upward pressure cylinder 6b is to 8, said upward pressure cylinder therefore be the second traction cylinder to the 3rd traction cylinder to shared.

Draw-gear 1 also comprise be positioned at traction unit 2 reach the standard grade be suitable for through be suitable for getting into (sink into is absorbed in) in single open that element opened bar S before advancing towards traction unit 2 open unit 10.

In other words, thus open unit 10 be suitable for through insert said open element and bar S worked open these, to reduce the tightness of bar.

As being schematically shown among Fig. 1 a, single S has the cross section of sub-elliptical, and when all considering together, these occupy and are roughly rectangular region R.Through opening the unit, open element and get into (penetrate thrusts) in bar and open these according to inserting line L, make each part have and insert line between one and compare the roughly density of homogeneity with the density that next bar inserts other part between line.

Preferred embodiment open at least one leading cylinder 12 of opening that unit 10 comprises the surface 14 that with groove (channelled) is installed according to one, thereby with guide ribs by the strong hand and make these and other fiber separation, open bar.

For example, can around the cylinder 12 of the rotation X rotation of the direction of the supply that is transverse to bar on this surface in the axial direction adjoining land have a plurality of circumferential protrusion 16.Groove 18 is formed between a convexity and the next convexity, and guiding combines the fiber of rolling in groove.

Convexity and axially the distance between side by side the next convexity be defined as " pitch (pitch) ".

The pitch of convexity of opening cylinder 12 can get into (sink into is absorbed in) preferably less than the average transverse width of bar in the fiber of bar so that in this modification, be used as the convexity of opening element.

According to the embodiment that illustrates, protruding continuous along circumference.

According to the embodiment modification, protruding discontinuous, in other words, be fabricated to continuous projecting teeth; According to another embodiment, open element and limit in a plurality of tips (tip) or the blade (blade) that can be trapped in the bar.

According to another embodiment, open element and axially locate to form cylindrical screw shape thing continuous or that part is interrupted.

According to one preferred embodiment, open unit 10 comprise for example be positioned at leading open cylinder 12 roll off the production line roll off the production line and open cylinder 20.

Open cylinder

12,20 orientate as make bar follow downward loop (downhill circuit, descending loop) leading open cylinder 12 and roll off the production line to open between the cylinder 20 pass through; Make bar S open cylindrical over top and pass through like this leading, downward bias from and above the bottom of opening cylinder 20 of rolling off the production line, pass through.

Preferably; Open rolling off the production line of cylinder 20 rolling off the production line; Draw-gear 1 comprises support bar 30; This support bar orientate as make bar S through the time position upper surface on it roughly be positioned at the height place of the first traction cylinder to 4 hole, and be positioned at than roll off the production line the higher height place, bottom on the surface of opening cylinder 20.

In other words, roll off the production line open cylinder 20 after, bar follows upwards that loop (uphill circuit, upward slope loop) until support bar 30, gets into traction unit 2 then.

Advantageously, this makes and can produce the tensioning of moving bar, and this promotes bar downwards towards leading surface of opening cylinder 12 and bar upwards is pushed to roll off the production line to open on the surface of cylinder 20, strengthens the guiding effect.

According to another embodiment, open unit 10 comprise be positioned at leading open cylinder 12 reach the standard grade reach the standard grade and open cylinder 40 (Fig. 4 and Fig. 4 are a).Reach the standard grade and open cylinder 40 and have and 26S Proteasome Structure and Function characteristic like leading those 26S Proteasome Structure and Function feature classes of opening cylinder 12.

According to one preferred embodiment, it is vehicularized to

open cylinder

12,20,40 right and wrong.According to other embodiments, open cylinder the 12,20, the 40th, vehicularized.According to more another embodiment, some open cylinder is vehicularized and some are not vehicularized.

Advantageously, this makes the cylindrical rotary speed of scalable, thereby to regulate with respect to the speed of bar and to optimize the guiding action.

According to an embodiment, open cylinder and process, to reduce rotatory inertia by light aluminum alloy.

According to another embodiment, in any case, prediction has several cylinders of opening, and the frequency (the for example relevant quantity of opening cylindrical circumferential protrusion of per unit length) of opening element increases from high to low.For example, the leading cylinder 12 of opening has than reaches the standard grade the pattern of opening the more intensive circumferential protrusion of cylinder 40 along its axis, and rolls off the production line and open cylinder 20 and have the pattern of opening the more intensive circumferential protrusion of cylinder 12 than leading along its axis.

Advantageously, the progression of protruding frequency makes can little by little provide (dose) to open the invasive of effect.

According to another embodiment, open the unit and comprise the overlapping cylinder of opening, in other words, these cylindrical circumferential protrusion get into (Fig. 5, Fig. 6 and Fig. 7) at least in part each other.

In other words, open cylindrical circumferential protrusion and itself be positioned at for one by in the cylindrical desirable cylindrical surface that convexes to form continuously that engages, between the depression (valley) that is formed between a convexity and another convexity.

For example, the cylinder that each other gets into open the unit open under comprising cylinder 12' and on open cylinder 12 ", for example between continuous circumferential protrusion, have identical axial pitch.

According to first embodiment; Open cylindrical circumferential protrusion and equitantly open cylindrical circumferential protrusion homophase, thereby make a top corresponding with another bottom of opening cylindrical depression (Fig. 5 and Fig. 7) of opening cylindrical convexity for one.

According to another embodiment, open cylindrical circumferential protrusion and equitantly open cylindrical circumferential protrusion out-phase, thereby make a top of opening cylindrical convexity open cylindrical inclined side corresponding (Fig. 6) for one with another.

According to another embodiment, equitant cylinder has different pitches.

According to another embodiment, the equitant cylinder of opening has and carries out the continuous of cylindrical screw motion or part is interrupted opens element, and wherein these two spirals have opposite coiling direction, the effect that moves axially on the bar of being processed with balance.

Preferably, in addition, hauling machine or lapper comprise and are positioned at the downward-sloping stayed surface 50 on the direction of advance of bar of reaching the standard grade of opening unit 10.

In addition, hauling machine or lapper comprise a plurality of deviation elements 52, and these deviation elements occupy the zone of departing from of stayed surface 50, and be outstanding from stayed surface, near getting into the edge.Deviation element 52 is preferably with herringbone pattern location, with the width of the both sides group that reduces bar.

In other words; The deviation element 52 that is made up of the piece of the parallelepiped shape with fillet comprises roughly and the entering side edge on surface 50 contact to earth the top end member 52a of location and the side element 52b that is positioned at the both sides of top end member 52a, and it gets into the edge further away from each other during near the side on surface 50 when top end member.

Deviation element 52 is orientated as and is made laterally spaced apart and between them, form pipeline, and bar is directed in these pipelines, and said element 52 laterally limits these pipelines.

Hauling machine or lapper also comprise the end surface 60 of the approximate horizontal that rolls off the production line that is positioned at stayed surface 50, and the said unit 10 of opening closely is positioned at rolling off the production line of this end surface.

According to one preferred embodiment, hauling machine or lapper comprise can be at bar through the time suction aspirator from the dirt of bar etc.

For example, said aspirator comprises the groove of the thickness that runs through end surface 60.

Novel ground is according to the feasible traction that can improve bar of draw-gear of the present invention, so that these have influence on disclosed traction unit.

Opening of the reinforcement of bar is corresponding with opening of the reinforcement of fiber, and therefore better this is supported, thereby has improved traction.

Advantageously, in addition, the effect of opening the unit is strengthened in upwards can inherently bar being pushed on the guiding surface with the loop is feasible downwards of bar.

Obviously, those skilled in the art can make modification to above-mentioned draw-gear, to satisfy the demand that depends on the circumstances.

For example, in an embodiment modification, open element and be fixed.

All modification all drop within the protection domain that is limited following claim.

Claims

1. the draw-gear of the hauling machine of the production line that spins or lapper (1), said draw-gear comprises:

-traction unit (2), said traction unit can draw the bar of entering;

-open unit (10), the said cell location of opening comprises that the reaching the standard grade of said traction unit (2) bar that is suitable for entering into each entering is to open this element of opening.

2. device according to claim 1, wherein, the said element of opening is movably, for example moves rotatably.

3. device according to claim 1 and 2 wherein, is saidly opened the leading cylinder (12) of opening that the unit comprises the surface of the with groove that a part that is used for guide ribs is installed.

4. device according to claim 3, wherein, the said leading cylinder (12) of opening comprises a plurality of circumferential protrusion (16), said circumferential protrusion forms the said element of opening.

5. device according to claim 5, wherein, said circumferential protrusion (16) is axially continuously to form peripheral groove (18).

6. device according to claim 5, wherein, said circumferential protrusion is axially continuous with the predetermined pitch less than the average transverse width of single (S).

7. according to each described device in the claim 3 to 6; Wherein, said open unit (12) comprise be positioned at said leading open cylinder (12) roll off the production line structurally with on function leadingly open similar the rolling off the production line of cylinder and open cylinder (20) with said.

8. device according to claim 7, wherein, said leading the roll off the production line top of the side surface of opening cylinder (20) of cylinder (12) and said of opening is positioned at the different height place, on direction of advance, to form said downward loop.

9. according to each described device in claim 7 or 8; Wherein, said open unit (10) comprise be positioned at said leading open cylinder (12) reach the standard grade structurally with on function leadingly open similar the reaching the standard grade of cylinder and open cylinder (40) with said.

10. device according to claim 9, wherein, said leading the reach the standard grade top of the side surface of opening cylinder (40) of cylinder (12) and said of opening is positioned at the different height place, on direction of advance, to form said upwards loop.

11. according to each described device in the aforesaid right requirement, wherein, the said element of opening is that tip or blade perhaps form helix continuous or that part is interrupted.

Each described device during 12. the aforesaid right when being subordinated to claim 7 requires, wherein, the said leading cylinder (12) of opening has than said rolling off the production line and opens the frequency of the big circumferential protrusion of cylinder (20).

Each described device during 13. the aforesaid right when being subordinated to claim 9 requires, wherein, said reaching the standard grade opened cylinder (40) and had than the said leading frequency of opening the big circumferential protrusion of cylinder (12).

14. according to each described device in the claim 3 to 13, wherein, said at least one right and wrong of opening in the cylinder are vehicularized.

15. according to each described device in the claim 3 to 14, wherein, said at least one that open in the cylinder is vehicularized.

16., comprise the paired equitant cylinder (12', 12 ") that opens according to each described device in the aforesaid right requirement.

17. device according to claim 16 wherein, is saidly equitantly opened cylinder (12', 12 ") is had the circumferential protrusion of homophase.

18. device according to claim 16 wherein, is saidly equitantly opened cylinder (12', 12 ") is had the circumferential protrusion of out-phase.

19., wherein, saidly equitantly open cylinder (12', 12 ") have the circumferential protrusion of different pitches according to each described device in the claim 16 to 18.

Each described device during 20. the aforesaid right when being subordinated to claim 9 requires, wherein, the said cylinder of opening is processed by light aluminum alloy.

21. according to each described device in the claim 16 to 20, wherein, the said equitant cylinder of opening comprises having the element of opening that the continuous of screw or part interrupt, and for example on opposite coiling direction, carries out screw.

22. one kind is drawn framework or lapper, comprises according to each draw-gear of making in the aforesaid right requirement.