CN102888678A

CN102888678A - Eccentric compensating error type shaking frame

Info

Publication number: CN102888678A
Application number: CN2011102060022A
Authority: CN
Inventors: 张晓焱; 张良翚; 张良翰; 张良翊
Original assignee: 张晓焱
Priority date: 2011-07-18
Filing date: 2011-07-18
Publication date: 2013-01-23
Anticipated expiration: 2031-07-18
Also published as: CN102888678B

Abstract

The invention relates to an eccentric compensating error type shaking frame, belongs to spinning machinery and relates to the innovation for increasing parallelism of an annular spindle spinning machine of a drafting pressing shaking frame. The eccentric compensating error type shaking frame comprises a shaking frame base (1), a shaking frame body (2), a hinge shaft for shaking frame base and shaking frame body, an upper roller holding mechanism and a pressurizing/pressure-releasing mechanism. According to the invention, the hinge shaft for shaking frame base and shaking frame body is changed into an eccentric shaft (3) from the original cylinder shaft. When the eccentric shaft (3) is twisted, the shaking frame body (2) can suitably swing relative to the shaking frame base (1), so that the accumulated error to the parallelism caused by the related parts of the shaking frame is eliminated. The eccentric compensating error type shaking frame has the advantages that: economical precise manufacturing parts can be utilized to produce the shaking frames in various forms with ultrahigh parallelism, so as to meet the gradually increasing demand on the spinning quality.

Description

Eccentric compensating error type cradle

Technical field the invention belongs to spinning machinery, relates to the improvement that improves the ring spinner draft pressurizing cradle depth of parallelism.

The national sector standard of the various draft pressurizing cradle of background technology (FZ/T 92036-2007, FZ/T 92072-2006) is all classified the depth of parallelism of upper bottom roll as the first the key technical indexes, the importance of the visible depth of parallelism.Therefore each reel cage production scientific research institution all drops into a large amount of manpower and materials for improving the depth of parallelism both at home and abroad, and develops the numerous reel cages that are intended to improve the key technical indexes such as the depth of parallelism.Main achievement for the depth of parallelism in this a large amount of research has following several types: the one, adopt the self-level(l)ing line, facts have proved that this mode is limited for the raising effect of the depth of parallelism, in spinning process, to swing from timing owing to top roller simultaneously, thereby will produce adverse influence to the two coring bars that it grips, wherein the instantaneous drafting multiple of a coring bar can increase and cause details, the instantaneous drafting multiple of another coring bar of face to reduce and cause slubbing.Therefore this self-paralleling structure is not developing direction.The 2nd, the accuracy of manufacture that improves the reel cage part finally guarantees the depth of parallelism.The accuracy of manufacture that employing improves constantly part certainly will improve constantly production cost.And part always has error, so not parallel problem always exists.The 3rd, adopt compensation principle to adopt the way of compensation that it is eliminated the accumulated error of each correlated parts, thereby can produce the high reel cage of the depth of parallelism, this is the developing direction that improves the depth of parallelism.

The patent No. is the Chinese patent of ZL200520034846.3, utilizes exactly the principle of compensating error, and available economic accuracy finished parts are produced the high reel cage of the depth of parallelism.This is a kind of breakthrough innovation.But this patent scheme still has the following disadvantages: the one, and the scope of application is little, is only applicable to lever-type cradle, then can't adopt for the reel cage of other numerous types.The 2nd, strengthen production cost thereby will increase part.The 3rd, want soldering to fix after adjusting, thereby cause the expensive deficiency that waits of taking a lot of work.

The rocking arm and base reel cage body hingle shaft of existing various reel cage is cylinder axis in addition.

Summary of the invention the present invention is directed to the deficiencies in the prior art, a kind of new compensating error scheme is provided, it both available economic accuracy make the reel cage part, can substantially not increase number of spare parts again, the design that can be substantially the depth of parallelism of various reel cage can both be increased substantially applied widely.

Technical solution of the present invention is this eccentric compensating error type cradle that is applied to ring spinner, comprise rocking arm and base, reel cage body, rocking arm and base reel cage body hingle shaft, top roller holding mechanism, add pressure relief means thereon, it is characterized in that: rocking arm and base reel cage body hingle shaft is eccentric shaft (3).

Eccentric shaft (3) has two central axis, the one, base center axis (O), the 2nd, the central axis of eccentric part (O1), when take base center axis (O) as benchmark eccentric rotation axis (3), the central axis of eccentric part (O1) will rotate take eccentric throw as radius around base center axis (O).When the positive and negative angle that turns eccentric shaft (3) during less than half cycle, then above-mentioned central axis (O1) will swing take eccentric throw as radius around base center axis (O).The cylinder that the base center axis (O) of eccentric shaft (3) is located cooperates with the hole of rocking arm and base (1) both sides, the cylindrical fit that the base center axis (O) of one side opening of reel cage body (2) and eccentric shaft (3) is located, and the cylindrical fit of another side opening and eccentric part, when turning eccentric shaft (3), reel cage body (2) just can be done suitably to swing with respect to rocking arm and base (1) again.Thereby just can eliminate each relevant part of reel cage to the accumulated error that the depth of parallelism causes, make the depth of parallelism of bottom roll reach high level.When reel cage just behind the dress and finish compensation adjustment, again that eccentric shaft (3) and reel cage body (2) or rocking arm and base (1) is fixing, eccentric shaft (3) is no longer changed with respect to the angular position of reel cage body (2) or rocking arm and base (1) get final product.This scheme is exactly the scheme of eccentric compensating error.

Advantage of the present invention and good effect are: can adopt economic accuracy to make the reel cage part and produce the high various reel cage of the depth of parallelism, the requirement that improves constantly to satisfy spinning quality.

Description of drawings Fig. 1 is the front elevational schematic of a kind of eccentric compensating error type cradle of the present invention;

Fig. 2 be Fig. 1 reel cage body (2) outside rocking arm and base (1) in interior a kind of reel cage A-A generalized section;

Fig. 3 is that Fig. 1 reel cage body (2) is in interior rocking arm and base (1) a kind of reel cage A-A generalized section outside.

1. rocking arm and bases, 2. reel cage bodies, 3. eccentric shafts, 4. pads among the figure

Specific embodiment example 11,2 is described as follows by reference to the accompanying drawings: the rocking arm and base of the reel cage that will just install (1) is fixed on the back shaft of the testboard that is equivalent to drafting device for spinning machine (containing roller stand, bottom roll, back shaft), loads onto top roller and makes reel cage be in pressurized state.Be positioning datum in order to bottom roll again, and two measuring tools (referring to the industry standard FZ/T 92036-2007 of draft pressurizing cradle, FZ/T 92072-2006) of adjusting consistent dial gauge at a distance of an about ingot distance are housed measure top roller to the depth of parallelism of bottom roll.When two dial gauge indicated values in the above-mentioned measuring tool are not identical, should turn eccentric shaft (3), at this moment reel cage body (2) swings with top roller, and the indicated value of two dial gauges on the measuring tool will constantly change.When the indicated value of two dial gauges was identical, just the upper bottom roll of expression was fully parallel, at this moment the compensation adjustment of reel cage was just accused and finished.Then with nut eccentric shaft (3) is tightened on the reel cage body (2), it can not be relatively rotated with reel cage body (2) get final product.

Because reel cage reel cage body (2) when compensation adjustment will do an amount of swing with respect to rocking arm and base (1), so in their parts that matches an amount of gap need to be set.Prevent again simultaneously that reel cage body (2) from along eccentric shaft (3) larger vibration occuring axially.This can arrange pad (4) between reel cage body (2) and rocking arm and base (1).Also can directly produce bulge loop at the periphery in the hole that rocking arm and base (1) or reel cage body (2) and eccentric shaft (3) match and replace pad (4).

Example 2 is by reference to the accompanying drawings 1,3 only to being described as follows with example 1 difference: example 1 be for reel cage body (2) outside rocking arm and base (1) be the example how to implement to compensate at an interior class reel cage.This example then is for the embodiment of reel cage body (2) at interior rocking arm and base (a 1) class reel cage outside.When turning eccentric shaft (3), central axis (O1) equally also can be done suitably to swing around central axis (O), and makes the accumulated error of reel cage be eliminated the purpose that reaches compensation.And then eccentric shaft (3) fixed itself and rocking arm and base (1) with the way of riveted joint get final product.

The structure of eccentric shaft (3) is not limited to Fig. 2,3 two kinds, can be diversified, and its central axis can more than two, also can play the purpose of compensation, but can increase manufacture difficulty.The way of maintenance eccentric shaft (3) angle invariant position when work also can be varied, as with nut or screw it being fastened on reel cage body (2) or the rocking arm and base (1), also it can be riveted, welds, is bonded on reel cage body (2) or the rocking arm and base (1), also to make it be fastened on reel cage body (2) or rocking arm and base (1) upper etc. for available friction tight way.

Claims

1. eccentric compensating error type cradle comprises rocking arm and base, reel cage body, rocking arm and base reel cage body hingle shaft, top roller holding mechanism, adds pressure relief means thereon, and it is characterized in that: rocking arm and base reel cage body hingle shaft is eccentric shaft (3).