CN201144308Y

CN201144308Y - Press bar capable of eliminating lateral movement of fibre

Info

Publication number: CN201144308Y
Application number: CNU2007201308443U
Authority: CN
Inventors: 朱鹏; 曹小华
Original assignee: Jiangsu Dongfeima Zuoli Textile Mechine Engineering Technology Research Centerco
Current assignee: Jiangsu Dongfeima Zuoli Textile Mechine Engineering Technology Research Centerco
Priority date: 2007-12-10
Filing date: 2007-12-10
Publication date: 2008-11-05
Anticipated expiration: 2017-12-10

Abstract

The utility model discloses a press bar that can eliminate the transverse of fibrous bundles. The press bar comprises a press bar body; wherein, at least one fibrous bundle passing groove is arranged on the press bar body. The press bar body is arranged on the holding end of the press bar of an upper pin body, which extends backward; and the press bar body is symmetrically provided with two fibrous bundle passing grooves. The press bar of the utility model can ensure the transverse fibrous bundles to accurately pass through the inspiration seams of a compact spinning set, so that the yarn quality can not be influenced by the feeding of the transverse of the fibrous bundles; furthermore, the press bar can lead the compact spinning set of a ring spinning frame to fully play a congregate and dense effect on the fibrous bundles.

Description

Can eliminate the pressure bar that fiber traverses

Technical field

The utility model relates to ring throstle, relates in particular to the pressure bar in the drafting system of ring spinner.

Background technology

Existing drafting system of ring spinner adopts three roller draft versions mostly, and it is that the boundary is divided into former and later two draw zones with whole drafting system with the middle roller.The front draft zone generally is elastic nip double belt drafting form, and the two aprons of this elastic nip comprise upper leather ring and go up pin, following apron and downside pin that last pin is connected on the middle top roller axle and can swings flexibly around its axle center.In order to strengthen the control to first break draft district fiber, people have taked V-type drawing-off or pressure bar, perhaps on the basis of V-type drawing-off configuration, add a pressure bar again at the back zone medium position, are called for short the VC drawing-off.

After the first break draft district adopts pressure bar version, pressing screen strip under the pressure bar, produce the contact grip hold arc, the additional friction field of force, form draw zone middle part, it also prolongs the rear roller surface and surrounds arc length, extend forward in the rear roller friction field of force, both are unified into a slice, have significantly strengthened draw zone rear portion frictional force field intensity and have distributed, and help the control of counter extensioin sliver and fiber movement, make the speed change point move forward, concentrate and stablize, thereby improved first break draft district yarn quality effectively to middle jaw.

Because the rove of feeding rear roller jaw has the twist, the rear roller jaw must keep enough grasping forces during drawing-off, otherwise the drawing-off rove will skid at the rear roller jaw.Yet the increase of nipper pressure has increased the weight of the burden of rear roller with the back roller, very easily causes destructions such as back roller concave, be full of cracks, causes the jaw grasping force to descend and the adhesive tape fiber, causes to grip inefficacy.For this reason, the feeding guide horn mouth on the fine spining machine in fact all is contained on the slow reciprocating traverse bar, and the feeding of rove is to traverse in certain scope.

Yet, in having the drafter of compact spinning apparatus, there is traverse motion in rear roller rear positions feeding horn mouth, and the suction slot in the compact spinning apparatus is positioned on the hard-wired suction tube, and the traverse motion of ribbon always is not a same position in the time of can causing ribbon to arrive suction slot, perhaps depart from suction slot fully, the fiber aggregate effect of compact spinning apparatus is greatly affected, and the compact spinning technical advantage is difficult to give full play to, even completely loses.

The specification that the Chinese patent name is called " device that is used for fine spining machine upper set tight fibers bar " (patent No. 200420080143.X) discloses the device that ribbon traverses in the elimination compact spinning apparatus, and this device is to set up fixing collector in addition again in the back zone.Though this collector can solve the problem that ribbon traverses, but not only there is complex structure in this structure, increases the accumulation point of short fiber or flyings, is unfavorable for the raising of sliver quality, and taken limited space, first break draft district, hindered the setting of first break draft district pressure bar or V-type drafting system.

The utility model content

For overcoming above-mentioned existing in prior technology deficiency, technical problem to be solved in the utility model provides and a kind ofly can make the ribbon suction slot by compact spinning apparatus exactly that traverses, yarn quality not traversed by ribbon feeding influences and simple in structure can eliminate the pressure bar that ribbon traverses.

In order to solve the problems of the technologies described above, the utility model can be eliminated the pressure bar that ribbon traverses, and comprises the pressure bar barred body, is provided with a ribbon at least on the described pressure bar barred body and passes through groove.

After adopting technique scheme, because the pressure barred body is provided with ribbon and passes through groove, after ribbon passes through groove by this ribbon during drawing-off, thoroughly eliminated the ribbon negative effect that feeding brings to compact spinning apparatus of traversing, make ribbon strengthen gathering of ribbon closely knit exactly through the suction slot of compacting means; The cycle that has guaranteed simultaneously the feeding ribbon again traverses, and has effectively protected back roller, is prolonging under the back roller situation in service life, gives full play to compact spinning apparatus again to tight effect of gathering of ribbon.Because this structure is that ribbon directly is arranged on the pressure bar barred body by groove, not only has simple in structure, working service convenience, and do not take space, first break draft district again, also effectively avoided the accumulation of short fiber or flyings.

A kind of preferred embodiment of the present utility model, described pressure bar barred body is arranged at the pressure bar holding end that shank extends back; Designing symmetrically on this pressure bar barred body has two ribbons to pass through groove.Pressure bar is arranged on the shank, has compactness rational in infrastructure, working service is characteristics easily.

Description of drawings

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

Fig. 1 is the structural representation that the utility model can be eliminated a kind of specific embodiment of pressure bar that ribbon traverses;

Fig. 2 is equipped with the front view that the utility model can be eliminated a kind of concrete structure of pressure bar top pin of the pressure bar that ribbon traverses;

Fig. 3 is the left view of structure shown in Figure 2;

Fig. 4 is equipped with the front view that the utility model can be eliminated the another kind of concrete structure of pressure bar top pin of the pressure bar that ribbon traverses;

Fig. 5 is the left view of structure shown in Figure 4.

The specific embodiment

As shown in Figure 1 can eliminate the pressure bar that ribbon traverses, this pressure bar adopts symmetrical structure, material is a Fine Steel Casting iron, chrome-faced.At the middle part of pressure bar barred body 1 is that pressure bar is installed on the clamping section of selling, and the both ends of pressure bar barred body 1 are active section, is provided with two ribbons on this active section symmetrically by groove 2; Pressure bar barred body 1 cross sectional shape is circular, and two ribbons all adopt the annular groove of semi arch by groove 2.

Fig. 2, Figure 3 shows that a kind of concrete structure view that pressure bar top pin of the present utility model is housed.Last shank 3 extends back and forms pressure bar holding end 5, clamping and of the present utility modelly can be eliminated the pressure bar that ribbon traverses in the card slot of this pressure bar holding end 5, this pressure bar is parallel to going up on the shank 3 and sells the front end jaw, and last pin then is installed on the middle top roller by the pin buckling groove 4 of going up on the last shank 3.This pressure bar includes pressure bar barred body 1 and ribbon provided thereon passes through groove 2.

Fig. 4, Figure 5 shows that the another kind of concrete structure view that pressure bar top pin of the present utility model is housed, same as the previously described embodiments, last shank 3 extends back and forms pressure bar holding end 5, but in the present embodiment, be provided with two card slots at this pressure bar holding end 5, all be connected with one in each card slot and of the present utility modelly can eliminate the pressure bar that ribbon traverses, two mutual parallel pressure bars all are parallel to goes up pin front end jaw on the shank 3.Same above-mentioned pressure bar also includes pressure bar barred body 1 and ribbon provided thereon passes through groove 2.Certainly two pressure bars in the present embodiment also can only have a band ribbon by groove 2, and do not have ribbon on another root active section by groove 2.

Above-mentionedly enumerated preferred implementations more of the present utility model, but the utility model is not limited thereto, can also makes some conversion and improvement.Be not restricted to circle as pressure bar of the present utility model cross section, it can also be oval or fan-shaped; Pressure bar of the present utility model both can be to be connected in by buckling groove to sell, and also can take shape in one with last pin, and its material also can be identical with last pin or inequality, or the like.Therefore, all should be considered as falling in the protection domain of the present utility model by groove as long as on pressure bar, be provided with ribbon.

Claims

1, a kind ofly can eliminate the pressure bar that ribbon traverses, comprise pressure bar barred body (1), it is characterized in that: be provided with a ribbon on the described pressure bar barred body (1) at least by groove (2).

2, according to claim 1ly can eliminate the pressure bar that ribbon traverses, it is characterized in that: described pressure bar barred body (1) is arranged at the pressure bar holding end (5) that shank (3) extends back; Design symmetrically on this pressure bar barred body (1) and two ribbons are arranged by groove (2).

3, according to claim 2ly can eliminate the pressure bar that ribbon traverses, it is characterized in that: the described pressure bar holding end of going up on the shank (3) (5) is provided with a pressure bar barred body (1).

4, according to claim 2ly can eliminate the pressure bar that ribbon traverses, it is characterized in that: the described pressure bar holding end (5) of going up shank (3) is provided with two pressure bar barred bodies (1) abreast.

5, according to each describedly can eliminate the pressure bar that ribbon traverses among the claim 1-4, it is characterized in that: described pressure bar barred body (1) cross section is rounded, oval or fan-shaped.

6, according to eliminating the pressure bar that ribbon traverses described in the claim 5, it is characterized in that: described ribbon is an annular groove by groove (2).