CN100999843A

CN100999843A - Traction mechanism with a loading beam and refitting method therefor

Info

Publication number: CN100999843A
Application number: CNA2006101684653A
Authority: CN
Inventors: P·布兰肯霍恩
Original assignee: Maschinenfabrik Rieter AG
Current assignee: Maschinenfabrik Rieter AG; Wilhelm Stahlecker GmbH
Priority date: 2006-01-12
Filing date: 2006-12-13
Publication date: 2007-07-18
Also published as: DE102006002524A1

Abstract

A stretching mechanism with a load carrier for a textile machine is disclosed, wherein, the load carrier applies load on a plurality of pressing rollers in the stretching mechanism, where the load carrier is tiltably fixed to a holding rod and all of the pressing rollers of the load carrier are braced by a common force generator located in the holding rod. A mechanical force generator is provided, which comprises a housing and at least a spring. The housing is insertable into the holding rod and preferred has at least one disk spring. A regulation device may be arranged in the invention for regulating a spring force of the mechanical force generator. In addition, a method for refitting the load carrier is also disclosed, wherein a common pneumatic force generator is replaced by the mechanical force generator.

Description

Have the drafter of a loading beam and the method for repacking

Technical field

The present invention relates to a kind of drafter of weaving loom of the loading beam with the roller that is used to exert pressure, wherein loading beam can make progress and swingingly be fixed on the fixed bar, and wherein all rollers of exerting pressure of this loading beam can be loaded by a device of having an effect that is arranged in this fixed bar together.

The invention still further relates to a kind of method of reequiping of being used for for the loading beam that the roller of exerting pressure at the drafter of a weaving loom is used, wherein loading beam is fixed on the fixed bar swingably, and wherein all rollers of exerting pressure of this loading beam can be loaded by a pneumatic device of having an effect that is arranged in the fixed bar together.

The invention still further relates to a kind of mechanical device of having an effect that uses in a kind of like this drafter in addition.

Background technology

The known for a long time loading beam that is useful on drafter, wherein all of loading beam rollers of exerting pressure jointly are loaded by a pneumatic device of having an effect that is arranged on the fixed bar, and are pressed on each bottom roll of drafter.In a kind of embodiment of known a kind of like this loading beam of making by Switzerland Li Te (Rieter) machinery plant, be provided with a kind of fixed bar that is used for fixing that is designed to six side's hollow sections of tubulose.Be provided with one and can apply compressed-air actuated flexible pipe within tubular fixed rod, it transfers the pressure on the ledge of a thumb formula of a rocking bar.The end on the ledge opposite that is positioned at the thumb formula of rocking bar then loads for the supporting arm of loading beam, and the roller of exerting pressure of drafter is fixed on the described arm.Shortcoming at this flexible pipe is: it suffers strong abrasion and often blow-by.Even although the blow-by of flexible pipe is less and do not cause the infringement of function, the loss that is occurred has caused the increasing that compressed air consumes.

In DE 103 55 853 A1, narrated the whole bag of tricks that how when the flexible pipe that is not arranged in the fixed bar, can realize a kind of like this loading of loading beam.Can put the mechanical leverage of design in addition at the fixed bar lining, they then can move by the pneumatic linear actuator at a center, so that a plurality of loading beams that are arranged side by side are loaded.Described solution all is pneumatically to carry out work, and requires bothersome mechanism, so they are not suitable for reequiping existing loading beam.

Summary of the invention

Task of the present invention is to propose a kind ofly not adopt the pneumatic also feasible drafter of device of having an effect, and a kind of method of repacking.

This task solves by following approach: be provided with a kind of device of having an effect of machinery, it contains a housing and at least one spring.This mechanical device of having an effect comprise at least one be arranged in one in the housing spring, be preferably a plurality of mutually stacked disk springs.The housing of the mechanical device of having an effect more advantageously is shaped according to the interior profile of fixed bar, and can be encased in the fixed bar.For method by following this task that solves: the pneumatic device of having an effect is removed, and is substituted with the mechanical device of having an effect that is comprising at least one spring.

A kind of like this advantage of the mechanical device of having an effect is: it can be made easily and work for a long time reliablely.Any abrasion can not occur and avoid the high operating cost of pneumatic system.Can reequip existing drafter by simple installation easily in addition.

Can so be provided with in design of the present invention: the loading force that spring produced, on each loading beam by the mechanical device of having an effect can be adjusted individually.Advantageously, make the mechanical device of having an effect comprise a regulator herein and be used to set up spring force.This regulator can be one and be pressed in screw on the spring with pressing plate.

Description of drawings

Other advantage of the present invention and characteristics are seen following explanation to embodiment.

Fig. 1: side view with drafter that the summary of the loading beam of a center loaded represents;

Fig. 2: the enlarged drawing of the mechanical device of having an effect among Fig. 1;

Fig. 3: along the cutaway view of the mechanical device of having an effect of III-III section among Fig. 2.

The specific embodiment

Fig. 1 has represented the drafter 1 of a kind of weaving loom, especially a kind of ring spinner.To 2,3,4,5 and 6,7 form drafter 1 by a plurality of rollers, and wherein each roller is to being pressed to their

roller

3,5 of exerting pressure by 2,4,6 and elasticity of a drivable bottom roll, and 7 form.Drafter 1

middle bottom roller

2,4,6 at a kind of ring spinner is usually designed to the bottom roll that passes on the machine longitudinal direction, they are bearing in the lower Roller bearing of not expressing in the frame.Middle roller is furnished with guiding belt lace 8 and 9 in a manner known way to 4,5., and on transporting direction A,

transport

2,3 input fiber strip or coarse yarns 10 to the input roller by drafter 1, and by roller subsequently and that drive with higher peripheral speed to 4,5 and 6, the 7 fubril yarns 11 that are drawn into desired fineness.Fiber palpulus bar 11 is fed to a unshowned twisting mechanism, ring ingot for example on pull-out direction B, and twist into yarn there and carry out winder.

The

roller

3,5 and 7 of exerting pressure remains on 12 li of loading beams, and loading beam then is fixed on one on the fixed bar 13 that passes on the machine longitudinal direction.Fixed bar 13 is fixedly arranged on the frame in a not shown manner.Loading beam 12 is made up of basic components 14 and a mobilizable supporting arm 15 that is fixed on the fixed bar 13 basically, has fixed the

roller

3,5 of exerting pressure, 7 on this supporting arm.Supporting arm 15 rotatably is arranged on the swinging axle 16 of basic components 14.A rocking bar 18 that is supported on 17 li on axle is set on basic components 14, and this rocking bar loads by compressing 19 pairs of supporting arms of pin 15, and the

roller

3,5 of therefore will exerting pressure, and 7 press to

bottom roll

2,4,6 separately.For the pressure that makes supporting arm 15 can be assigned on

exert pressure roller

3,5 and 7 in desirable mode, the

roller

3,5 and 7 of exerting pressure is fixed on the supporting arm 15 by mobilizable lever 20 and 21.Because the

roller

3,5 of exerting pressure, 7 to leave

lever

20 and 21 supporting-point 22 different with 23 distance, so the loading force of supporting arm 15 just can distribute in desirable mode.For can be for the

maintenance purpose roller

3,5 of will exerting pressure, 7 from

bottom roll

2,4, lifts on 6, is provided with a disengagement yoke 24, and it makes and compresses pin 19 and be swung away from rocking bar 18, thereby supporting arm 15 can upwards be swung around swinging axle 16.

Rocking bar 18 deviates from it and compresses the ledge 25 that pin 19 1 sides have a thumb formula, and it extend into the inside of fixed bar 13 through a hole.Be provided with the pneumatic device of having an effect of a flexible pipe form in the prior art in the inside of fixed bar 13, this device can load compressed air and load with the ledge 25 of a power to the thumb formula, and this power makes every effort to the ledge 25 of thumb formula is extruded for 13 li from fixed bar.This power is passed on the supporting arm 15 of loading beam 12 by rocking bar 18 then, and is used for the

roller

3,5 of exerting pressure in mode recited above, and 7 load.

Be vulnerable to disturb owing to be located at the flexible pipe of 13 li of fixed bars,, wherein will remove, and substitute with a mechanical device 26 of having an effect as the flexible pipe of the pneumatic device of having an effect so regulation is carried out a kind of repacking.The mechanical device 26 of having an effect comprises a housing 27 and a spring 28, and this spring loads by the ledge 25 of its spring force to the thumb formula of rocking bar 18.The housing 27 of the mechanical device 26 of having an effect on its profile with the interior outline of tubular fixed rod 13, and equally also preferably have hexagon.

In Fig. 2 and 3, amplify the zone of having represented fixed bar 13 and the mechanical device 26 of having an effect.The mechanical device of having an effect is pushed in the inside of fixed bar 13 with its housing 27, and the ledge 25 of thumb formula that just in time is located at the rocking bar 18 of loading beam 12 extend into the place in fixed bar 13 inside.Spring 28 is positioned at housing 27 inside, and it for example can be formed by a helical spring or by a plurality of stacked disk springs mutually.Form by three stacked disk springs 29 in alternating direction ground at situation lower spring 28 shown in Figure 2.Quantity that disk spring 29 stacks mutually and form are for example at this.It can guarantee lucky deviation and preferably select like this, makes to act on the power that required size is arranged on the ledge 25 of thumb formula.In order can on each loading beam 12, to adjust, advantageously on spring 28, to be provided with a regulator 30 and to be used for setting spring power the loading force on the ledge 25 that acts on the thumb formula.The regulator 30 of the mechanical device 26 of having an effect for example can be made up of a threaded pin 31 or a screw at this, and this screw is screwed into 27 li of housings, and is pressed in by a pressing plate 32 on that end of the ledge that deviates from the thumb formula 25 of spring 28.By changing the degree of depth that is screwed into of threaded pin 31, just can change the pretightning force of spring 28, and therefore the spring force on the ledge 25 that acts on the thumb formula be changed.For threaded pin 31 being assembled to 27 li of housings, must be provided with an additional hole 33 13 li of fixed bars.Because the housing 27 of the mechanical device 26 of having an effect-as shown in Figure 3 to such one have only a little width (this width is selected corresponding to the diameter of disk spring 29), at first when not being screwed into screw 31, just this housing is pushed into during device 26 along 13 li of the fixed bars of machine extension so be preferably in mechanical the having an effect of repacking, and arrives in the essential position.31 of threaded pins can pass hole 33 from the outside and be screwed into 27 li of housings.

According to the planform towards the end of the ledge 25 of thumb formula of spring 28, the intermediate plate of can be advantageously between the ledge 25 of the thumb formula of spring 28 and rocking bar 18, packing into.This intermediate plate 34 is used to make the power of spring 28 to be passed to the ledge 25 of thumb formula best, and also can reduce under the stable condition because in the ledge 25 of thumb formula and the abrasion of the caused by relative motion between the spring 28.

Claims

1. be used to be retrofitted in the exert pressure method of loading beam of roller of being used in the drafter of a weaving loom, wherein this loading beam is fixed on the fixed bar swingably, and all rollers of exerting pressure of wherein said loading beam can be loaded by a pneumatic device of having an effect that is arranged in the fixed bar together, it is characterized in that, the pneumatic device of having an effect is got rid of, and substitute with a mechanical device of having an effect, this mechanical device of having an effect comprises at least one spring.

2. by the described method of claim 1, it is characterized in that, on each loading beam, set individually by the loading force that spring produced of the mechanical device of having an effect.

3. by claim 1 or 2 described methods, it is characterized in that, a plurality of disk springs are stacked up with each other as spring.

4. the drafter of a weaving loom (1), it has the roller (3 that is used to exert pressure, 5,7) loading beam (12), wherein loading beam (12) can make progress and swingingly be fixed on the fixed bar (13), and all rollers (3 of exerting pressure of wherein said loading beam (12), 5,7) can be loaded by a device of having an effect that is arranged in fixed bar (13) lining together, it is characterized in that, be provided with a mechanical device of having an effect (26), it comprises a housing (27) and at least one spring (28).

5. the mechanical device of having an effect (26), it is used for a drafter at weaving loom (1) lining and is fixed on loading beam (12) on the fixed bar (13), it is characterized in that the mechanical device of having an effect (26) contains at least one spring (28) that is arranged at a housing (27) lining; And housing (27) can be encased in fixed bar (13) lining.

6. by the described mechanical device of having an effect of claim 5, it is characterized in that this mechanical device of having an effect (26) comprises at least one disk spring (29).

7. by claim 5 or the 6 described mechanical devices of having an effect, it is characterized in that the mechanical device of having an effect (26) contains a regulator (30) and is used for regulating spring power.